diff options
| author | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-01-31 21:00:50 +0000 |
|---|---|---|
| committer | florian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2010-01-31 21:00:50 +0000 |
| commit | aa058f66664b53ab0314ed0591b65a1e66a988bf (patch) | |
| tree | d1c96d3d47d05d91e1c8739777e8cc30b038c3b9 /target/linux/brcm63xx/files/drivers | |
| parent | e2ed0595652a45beb67f7542c450373a57e20cff (diff) | |
[brcm63xx] move files to files-2.6.30, to ease newer kernel integration
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19471 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm63xx/files/drivers')
11 files changed, 0 insertions, 5379 deletions
diff --git a/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c b/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c deleted file mode 100644 index e24a08110..000000000 --- a/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c +++ /dev/null @@ -1,399 +0,0 @@ -/* - * Copyright (C) 2006-2008 Florian Fainelli <florian@openwrt.org> - * Mike Albon <malbon@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/mtd/map.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> -#include <linux/vmalloc.h> -#include <linux/platform_device.h> - -#include <bcm_tag.h> -#include <asm/io.h> - -#define BUSWIDTH 2 /* Buswidth */ -#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */ - -#define PFX KBUILD_MODNAME ": " - -extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin); -static struct mtd_partition *parsed_parts; - -static struct mtd_info *bcm963xx_mtd_info; - -static struct map_info bcm963xx_map = { - .name = "bcm963xx", - .bankwidth = BUSWIDTH, -}; - -static struct tagiddesc_t tagidtab[NUM_TAGID] = TAGID_DEFINITIONS; - -static uint32_t tagcrc32tab[256] = { - 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3, - 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91, - 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, - 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, - 0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, - 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, - 0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, - 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, - 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433, - 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01, - 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, - 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, - 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, - 0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, - 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F, - 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, - 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683, - 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, - 0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, - 0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, - 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, - 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79, - 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, - 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, - 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, - 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, - 0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, - 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, - 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB, - 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9, - 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF, - 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D -}; - -static uint32_t tagcrc32(uint32_t crc, uint8_t *data, size_t len) -{ - while (len--) - crc = (crc >> 8) ^ tagcrc32tab[(crc ^ *data++) & 0xFF]; - - return crc; -} - -static int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts) -{ - int nrparts = 3, curpart = 0; /* CFE,NVRAM and global LINUX are always present. */ - union bcm_tag *buf; - struct mtd_partition *parts; - int ret; - size_t retlen; - unsigned int rootfsaddr, kerneladdr, spareaddr; - unsigned int rootfslen, kernellen, sparelen, totallen; - unsigned char *tagid; - int namelen = 0; - int i; - uint32_t tagidcrc; - uint32_t calctagidcrc; - bool tagid_match = false; - char *boardid; - char *tagversion; - char *matchtagid; - - /* Allocate memory for buffer */ - buf = vmalloc(sizeof(union bcm_tag)); - if (!buf) - return -ENOMEM; - - /* Get the tag */ - ret = master->read(master,master->erasesize,sizeof(union bcm_tag), &retlen, (void *)buf); - if (retlen != sizeof(union bcm_tag)){ - vfree(buf); - return -EIO; - } - - /* tagId isn't in the same location, so we check each tagid against the - * tagid CRC. If the CRC is valid we have found the right tag and so - * use that tag - */ - - for (i = 0; i < NUM_TAGID; i++) { - switch(i) { - case 0: - matchtagid = "bccfe"; - tagid = &(buf->bccfe.tagId[0]); - sscanf(buf->bccfe.rootAddress,"%u", &rootfsaddr); - sscanf(buf->bccfe.rootLength, "%u", &rootfslen); - sscanf(buf->bccfe.kernelAddress, "%u", &kerneladdr); - sscanf(buf->bccfe.kernelLength, "%u", &kernellen); - sscanf(buf->bccfe.totalLength, "%u", &totallen); - tagidcrc = *(uint32_t *)&(buf->bccfe.tagIdCRC[0]); - tagversion = &(buf->bccfe.tagVersion[0]); - boardid = &(buf->bccfe.boardid[0]); - break; - case 1: - matchtagid = "bc300"; - tagid = &(buf->bc300.tagId[0]); - sscanf(buf->bc300.rootAddress,"%u", &rootfsaddr); - sscanf(buf->bc300.rootLength, "%u", &rootfslen); - sscanf(buf->bc300.kernelAddress, "%u", &kerneladdr); - sscanf(buf->bc300.kernelLength, "%u", &kernellen); - sscanf(buf->bc300.totalLength, "%u", &totallen); - tagidcrc = *(uint32_t *)&(buf->bc300.tagIdCRC[0]); - tagversion = &(buf->bc300.tagVersion[0]); - boardid = &(buf->bc300.boardid[0]); - break; - case 2: - matchtagid = "ag306"; - tagid = &(buf->ag306.tagId[0]); - sscanf(buf->ag306.rootAddress,"%u", &rootfsaddr); - sscanf(buf->ag306.rootLength, "%u", &rootfslen); - sscanf(buf->ag306.kernelAddress, "%u", &kerneladdr); - sscanf(buf->ag306.kernelLength, "%u", &kernellen); - sscanf(buf->ag306.totalLength, "%u", &totallen); - tagidcrc = *(uint32_t *)&(buf->ag306.tagIdCRC[0]); - tagversion = &(buf->ag306.tagVersion[0]); - boardid = &(buf->ag306.boardid[0]); - break; - case 3: - matchtagid = "bc221"; - tagid = &(buf->bc221.tagId[0]); - sscanf(buf->bc221.rootAddress,"%u", &rootfsaddr); - sscanf(buf->bc221.rootLength, "%u", &rootfslen); - sscanf(buf->bc221.kernelAddress, "%u", &kerneladdr); - sscanf(buf->bc221.kernelLength, "%u", &kernellen); - sscanf(buf->bc221.totalLength, "%u", &totallen); - tagidcrc = *(uint32_t *)&(buf->bc221.tagIdCRC[0]); - tagversion = &(buf->bc221.tagVersion[0]); - boardid = &(buf->bc221.boardid[0]); - break; - case 4: - matchtagid = "bc310"; - tagid = &(buf->bc310.tagId[0]); - sscanf(buf->bc310.rootAddress,"%u", &rootfsaddr); - sscanf(buf->bc310.rootLength, "%u", &rootfslen); - sscanf(buf->bc310.kernelAddress, "%u", &kerneladdr); - sscanf(buf->bc310.kernelLength, "%u", &kernellen); - sscanf(buf->bc310.totalLength, "%u", &totallen); - tagidcrc = *(uint32_t *)&(buf->bc310.tagIdCRC[0]); - tagversion = &(buf->bc310.tagVersion[0]); - boardid = &(buf->bc310.boardid[0]); - break; - } - if (strncmp(tagid, matchtagid, TAGID_LEN) != 0) { - continue; - } - - calctagidcrc = htonl(tagcrc32(IMAGETAG_CRC_START, tagid, TAGID_LEN)); - if (tagidcrc == calctagidcrc) { - tagid_match = true; - break; - } - } - - if (!tagid_match) { - tagid = "bcram"; - sscanf(buf->bccfe.rootAddress,"%u", &rootfsaddr); - sscanf(buf->bccfe.rootLength, "%u", &rootfslen); - sscanf(buf->bccfe.kernelAddress, "%u", &kerneladdr); - sscanf(buf->bccfe.kernelLength, "%u", &kernellen); - sscanf(buf->bccfe.totalLength, "%u", &totallen); - tagidcrc = *(uint32_t *)&(buf->bccfe.tagIdCRC[0]); - tagversion = &(buf->bccfe.tagVersion[0]); - boardid = &(buf->bccfe.boardid[0]); - } - - printk(KERN_INFO PFX "CFE boot tag found with version %s, board type %s, and tagid %s.\n",tagversion,boardid,tagid); - - rootfsaddr = rootfsaddr - EXTENDED_SIZE; - kerneladdr = kerneladdr - EXTENDED_SIZE; - spareaddr = roundup(totallen,master->erasesize) + master->erasesize; - sparelen = master->size - spareaddr - master->erasesize; - - /* Determine number of partitions */ - namelen = 8; - if (rootfslen > 0){ - nrparts++; - namelen =+ 6; - }; - if (kernellen > 0) { - nrparts++; - namelen =+ 6; - }; - - /* Ask kernel for more memory */ - parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL); - if (!parts) { - vfree(buf); - return -ENOMEM; - }; - - /* Start building partition list */ - parts[curpart].name = "CFE"; - parts[curpart].offset = 0; - parts[curpart].size = master->erasesize; - curpart++; - - if (kernellen > 0) { - parts[curpart].name = "kernel"; - parts[curpart].offset = kerneladdr; - parts[curpart].size = kernellen; - curpart++; - }; - - if (rootfslen > 0) { - parts[curpart].name = "rootfs"; - parts[curpart].offset = rootfsaddr; - parts[curpart].size = rootfslen; - if (sparelen > 0) - parts[curpart].size += sparelen; - curpart++; - }; - - parts[curpart].name = "nvram"; - parts[curpart].offset = master->size - master->erasesize; - parts[curpart].size = master->erasesize; - - /* Global partition "linux" to make easy firmware upgrade */ - curpart++; - parts[curpart].name = "linux"; - parts[curpart].offset = parts[0].size; - parts[curpart].size = master->size - parts[0].size - parts[3].size; - - for (i = 0; i < nrparts; i++) - printk(KERN_INFO PFX "Partition %d is %s offset %llx and length %llx\n", i, parts[i].name, parts[i].offset, parts[i].size); - - printk(KERN_INFO PFX "Spare partition is %x offset and length %x\n", spareaddr, sparelen); - *pparts = parts; - vfree(buf); - - return nrparts; -}; - -static int bcm963xx_detect_cfe(struct mtd_info *master) -{ - int idoffset = 0x4e0; - static char idstring[8] = "CFE1CFE1"; - char buf[9]; - int ret; - size_t retlen; - - ret = master->read(master, idoffset, 8, &retlen, (void *)buf); - buf[retlen] = 0; - printk(KERN_INFO PFX "Read Signature value of %s\n", buf); - - return strncmp(idstring, buf, 8); -} - -static int bcm963xx_probe(struct platform_device *pdev) -{ - int err = 0; - int parsed_nr_parts = 0; - char *part_type; - struct resource *r; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - bcm963xx_map.phys = r->start; - bcm963xx_map.size = (r->end - r->start) + 1; - bcm963xx_map.virt = ioremap(r->start, r->end - r->start + 1); - - if (!bcm963xx_map.virt) { - printk(KERN_ERR PFX "Failed to ioremap\n"); - return -EIO; - } - printk(KERN_INFO PFX "0x%08lx at 0x%08x\n", bcm963xx_map.size, bcm963xx_map.phys); - - simple_map_init(&bcm963xx_map); - - bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map); - if (!bcm963xx_mtd_info) { - printk(KERN_ERR PFX "Failed to probe using CFI\n"); - err = -EIO; - goto err_probe; - } - - bcm963xx_mtd_info->owner = THIS_MODULE; - - /* This is mutually exclusive */ - if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0) { - printk(KERN_INFO PFX "CFE bootloader detected\n"); - if (parsed_nr_parts == 0) { - int ret = parse_cfe_partitions(bcm963xx_mtd_info, &parsed_parts); - if (ret > 0) { - part_type = "CFE"; - parsed_nr_parts = ret; - } - } - } else { - printk(KERN_INFO PFX "assuming RedBoot bootloader\n"); - if (bcm963xx_mtd_info->size > 0x00400000) { - printk(KERN_INFO PFX "Support for extended flash memory size : 0x%llx ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size); - bcm963xx_map.virt = (u32)(EXTENDED_SIZE); - } - -#ifdef CONFIG_MTD_REDBOOT_PARTS - if (parsed_nr_parts == 0) { - int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0); - if (ret > 0) { - part_type = "RedBoot"; - parsed_nr_parts = ret; - } - } -#endif - } - - return add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts); - -err_probe: - iounmap(bcm963xx_map.virt); - return err; -} - -static int bcm963xx_remove(struct platform_device *pdev) -{ - if (bcm963xx_mtd_info) { - del_mtd_partitions(bcm963xx_mtd_info); - map_destroy(bcm963xx_mtd_info); - } - - if (bcm963xx_map.virt) { - iounmap(bcm963xx_map.virt); - bcm963xx_map.virt = 0; - } - - return 0; -} - -static struct platform_driver bcm63xx_mtd_dev = { - .probe = bcm963xx_probe, - .remove = bcm963xx_remove, - .driver = { - .name = "bcm963xx-flash", - .owner = THIS_MODULE, - }, -}; - -static int __init bcm963xx_mtd_init(void) -{ - return platform_driver_register(&bcm63xx_mtd_dev); -} - -static void __exit bcm963xx_mtd_exit(void) -{ - platform_driver_unregister(&bcm63xx_mtd_dev); -} - -module_init(bcm963xx_mtd_init); -module_exit(bcm963xx_mtd_exit); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Broadcom BCM63xx MTD partition parser/mapping for CFE and RedBoot"); -MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); -MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>"); diff --git a/target/linux/brcm63xx/files/drivers/net/bcm63xx_enet.c b/target/linux/brcm63xx/files/drivers/net/bcm63xx_enet.c deleted file mode 100644 index d338bbc08..000000000 --- a/target/linux/brcm63xx/files/drivers/net/bcm63xx_enet.c +++ /dev/null @@ -1,1964 +0,0 @@ -/* - * Driver for BCM963xx builtin Ethernet mac - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/clk.h> -#include <linux/etherdevice.h> -#include <linux/delay.h> -#include <linux/ethtool.h> -#include <linux/crc32.h> -#include <linux/err.h> -#include <linux/dma-mapping.h> -#include <linux/platform_device.h> -#include <linux/if_vlan.h> -#include <linux/version.h> - -#include <bcm63xx_dev_enet.h> -#include "bcm63xx_enet.h" - -static char bcm_enet_driver_name[] = "bcm63xx_enet"; -static char bcm_enet_driver_version[] = "1.0"; - -static int copybreak __read_mostly = 128; -module_param(copybreak, int, 0); -MODULE_PARM_DESC(copybreak, "Receive copy threshold"); - -/* io memory shared between all devices */ -static void __iomem *bcm_enet_shared_base; - -/* - * io helpers to access mac registers - */ -static inline u32 enet_readl(struct bcm_enet_priv *priv, u32 off) -{ - return bcm_readl(priv->base + off); -} - -static inline void enet_writel(struct bcm_enet_priv *priv, - u32 val, u32 off) -{ - bcm_writel(val, priv->base + off); -} - -/* - * io helpers to access shared registers - */ -static inline u32 enet_dma_readl(struct bcm_enet_priv *priv, u32 off) -{ - return bcm_readl(bcm_enet_shared_base + off); -} - -static inline void enet_dma_writel(struct bcm_enet_priv *priv, - u32 val, u32 off) -{ - bcm_writel(val, bcm_enet_shared_base + off); -} - -/* - * write given data into mii register and wait for transfer to end - * with timeout (average measured transfer time is 25us) - */ -static int do_mdio_op(struct bcm_enet_priv *priv, unsigned int data) -{ - int limit; - - /* make sure mii interrupt status is cleared */ - enet_writel(priv, ENET_IR_MII, ENET_IR_REG); - - enet_writel(priv, data, ENET_MIIDATA_REG); - wmb(); - - /* busy wait on mii interrupt bit, with timeout */ - limit = 1000; - do { - if (enet_readl(priv, ENET_IR_REG) & ENET_IR_MII) - break; - udelay(1); - } while (limit-- >= 0); - - return (limit < 0) ? 1 : 0; -} - -/* - * MII internal read callback - */ -static int bcm_enet_mdio_read(struct bcm_enet_priv *priv, int mii_id, - int regnum) -{ - u32 tmp, val; - - tmp = regnum << ENET_MIIDATA_REG_SHIFT; - tmp |= 0x2 << ENET_MIIDATA_TA_SHIFT; - tmp |= mii_id << ENET_MIIDATA_PHYID_SHIFT; - tmp |= ENET_MIIDATA_OP_READ_MASK; - - if (do_mdio_op(priv, tmp)) - return -1; - - val = enet_readl(priv, ENET_MIIDATA_REG); - val &= 0xffff; - return val; -} - -/* - * MII internal write callback - */ -static int bcm_enet_mdio_write(struct bcm_enet_priv *priv, int mii_id, - int regnum, u16 value) -{ - u32 tmp; - - tmp = (value & 0xffff) << ENET_MIIDATA_DATA_SHIFT; - tmp |= 0x2 << ENET_MIIDATA_TA_SHIFT; - tmp |= regnum << ENET_MIIDATA_REG_SHIFT; - tmp |= mii_id << ENET_MIIDATA_PHYID_SHIFT; - tmp |= ENET_MIIDATA_OP_WRITE_MASK; - - (void)do_mdio_op(priv, tmp); - return 0; -} - -/* - * MII read callback from phylib - */ -static int bcm_enet_mdio_read_phylib(struct mii_bus *bus, int mii_id, - int regnum) -{ - return bcm_enet_mdio_read(bus->priv, mii_id, regnum); -} - -/* - * MII write callback from phylib - */ -static int bcm_enet_mdio_write_phylib(struct mii_bus *bus, int mii_id, - int regnum, u16 value) -{ - return bcm_enet_mdio_write(bus->priv, mii_id, regnum, value); -} - -/* - * MII read callback from mii core - */ -static int bcm_enet_mdio_read_mii(struct net_device *dev, int mii_id, - int regnum) -{ - return bcm_enet_mdio_read(netdev_priv(dev), mii_id, regnum); -} - -/* - * MII write callback from mii core - */ -static void bcm_enet_mdio_write_mii(struct net_device *dev, int mii_id, - int regnum, int value) -{ - bcm_enet_mdio_write(netdev_priv(dev), mii_id, regnum, value); -} - -/* - * refill rx queue - */ -static int bcm_enet_refill_rx(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - - while (priv->rx_desc_count < priv->rx_ring_size) { - struct bcm_enet_desc *desc; - struct sk_buff *skb; - dma_addr_t p; - int desc_idx; - u32 len_stat; - - desc_idx = priv->rx_dirty_desc; - desc = &priv->rx_desc_cpu[desc_idx]; - - if (!priv->rx_skb[desc_idx]) { - skb = netdev_alloc_skb(dev, priv->rx_skb_size); - if (!skb) - break; - priv->rx_skb[desc_idx] = skb; - - p = dma_map_single(&priv->pdev->dev, skb->data, - priv->rx_skb_size, - DMA_FROM_DEVICE); - desc->address = p; - } - - len_stat = priv->rx_skb_size << DMADESC_LENGTH_SHIFT; - len_stat |= DMADESC_OWNER_MASK; - if (priv->rx_dirty_desc == priv->rx_ring_size - 1) { - len_stat |= DMADESC_WRAP_MASK; - priv->rx_dirty_desc = 0; - } else { - priv->rx_dirty_desc++; - } - wmb(); - desc->len_stat = len_stat; - - priv->rx_desc_count++; - - /* tell dma engine we allocated one buffer */ - enet_dma_writel(priv, 1, ENETDMA_BUFALLOC_REG(priv->rx_chan)); - } - - /* If rx ring is still empty, set a timer to try allocating - * again at a later time. */ - if (priv->rx_desc_count == 0 && netif_running(dev)) { - dev_warn(&priv->pdev->dev, "unable to refill rx ring\n"); - priv->rx_timeout.expires = jiffies + HZ; - add_timer(&priv->rx_timeout); - } - - return 0; -} - -/* - * timer callback to defer refill rx queue in case we're OOM - */ -static void bcm_enet_refill_rx_timer(unsigned long data) -{ - struct net_device *dev; - struct bcm_enet_priv *priv; - - dev = (struct net_device *)data; - priv = netdev_priv(dev); - - spin_lock(&priv->rx_lock); - bcm_enet_refill_rx((struct net_device *)data); - spin_unlock(&priv->rx_lock); -} - -/* - * extract packet from rx queue - */ -static int bcm_enet_receive_queue(struct net_device *dev, int budget) -{ - struct bcm_enet_priv *priv; - struct device *kdev; - int processed; - - priv = netdev_priv(dev); - kdev = &priv->pdev->dev; - processed = 0; - - /* don't scan ring further than number of refilled - * descriptor */ - if (budget > priv->rx_desc_count) - budget = priv->rx_desc_count; - - do { - struct bcm_enet_desc *desc; - struct sk_buff *skb; - int desc_idx; - u32 len_stat; - unsigned int len; - - desc_idx = priv->rx_curr_desc; - desc = &priv->rx_desc_cpu[desc_idx]; - - /* make sure we actually read the descriptor status at - * each loop */ - rmb(); - - len_stat = desc->len_stat; - - /* break if dma ownership belongs to hw */ - if (len_stat & DMADESC_OWNER_MASK) - break; - - processed++; - priv->rx_curr_desc++; - if (priv->rx_curr_desc == priv->rx_ring_size) - priv->rx_curr_desc = 0; - priv->rx_desc_count--; - - /* if the packet does not have start of packet _and_ - * end of packet flag set, then just recycle it */ - if ((len_stat & DMADESC_ESOP_MASK) != DMADESC_ESOP_MASK) { - priv->stats.rx_dropped++; - continue; - } - - /* recycle packet if it's marked as bad */ - if (unlikely(len_stat & DMADESC_ERR_MASK)) { - priv->stats.rx_errors++; - - if (len_stat & DMADESC_OVSIZE_MASK) - priv->stats.rx_length_errors++; - if (len_stat & DMADESC_CRC_MASK) - priv->stats.rx_crc_errors++; - if (len_stat & DMADESC_UNDER_MASK) - priv->stats.rx_frame_errors++; - if (len_stat & DMADESC_OV_MASK) - priv->stats.rx_fifo_errors++; - continue; - } - - /* valid packet */ - skb = priv->rx_skb[desc_idx]; - len = (len_stat & DMADESC_LENGTH_MASK) >> DMADESC_LENGTH_SHIFT; - /* don't include FCS */ - len -= 4; - - if (len < copybreak) { - struct sk_buff *nskb; - - nskb = netdev_alloc_skb(dev, len + 2); - if (!nskb) { - /* forget packet, just rearm desc */ - priv->stats.rx_dropped++; - continue; - } - - /* since we're copying the data, we can align - * them properly */ - skb_reserve(nskb, NET_IP_ALIGN); - dma_sync_single_for_cpu(kdev, desc->address, - len, DMA_FROM_DEVICE); - memcpy(nskb->data, skb->data, len); - dma_sync_single_for_device(kdev, desc->address, - len, DMA_FROM_DEVICE); - skb = nskb; - } else { - dma_unmap_single(&priv->pdev->dev, desc->address, - priv->rx_skb_size, DMA_FROM_DEVICE); - priv->rx_skb[desc_idx] = NULL; - } - - skb_put(skb, len); - skb->dev = dev; - skb->protocol = eth_type_trans(skb, dev); - priv->stats.rx_packets++; - priv->stats.rx_bytes += len; - dev->last_rx = jiffies; - netif_receive_skb(skb); - - } while (--budget > 0); - - if (processed || !priv->rx_desc_count) { - bcm_enet_refill_rx(dev); - - /* kick rx dma */ - enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK, - ENETDMA_CHANCFG_REG(priv->rx_chan)); - } - - return processed; -} - - -/* - * try to or force reclaim of transmitted buffers - */ -static int bcm_enet_tx_reclaim(struct net_device *dev, int force) -{ - struct bcm_enet_priv *priv; - int released; - - priv = netdev_priv(dev); - released = 0; - - while (priv->tx_desc_count < priv->tx_ring_size) { - struct bcm_enet_desc *desc; - struct sk_buff *skb; - - /* We run in a bh and fight against start_xmit, which - * is called with bh disabled */ - spin_lock(&priv->tx_lock); - - desc = &priv->tx_desc_cpu[priv->tx_dirty_desc]; - - if (!force && (desc->len_stat & DMADESC_OWNER_MASK)) { - spin_unlock(&priv->tx_lock); - break; - } - - /* ensure other field of the descriptor were not read - * before we checked ownership */ - rmb(); - - skb = priv->tx_skb[priv->tx_dirty_desc]; - priv->tx_skb[priv->tx_dirty_desc] = NULL; - dma_unmap_single(&priv->pdev->dev, desc->address, skb->len, - DMA_TO_DEVICE); - - priv->tx_dirty_desc++; - if (priv->tx_dirty_desc == priv->tx_ring_size) - priv->tx_dirty_desc = 0; - priv->tx_desc_count++; - - spin_unlock(&priv->tx_lock); - - if (desc->len_stat & DMADESC_UNDER_MASK) - priv->stats.tx_errors++; - - dev_kfree_skb(skb); - released++; - } - - if (netif_queue_stopped(dev) && released) - netif_wake_queue(dev); - - return released; -} - -/* - * poll func, called by network core - */ -static int bcm_enet_poll(struct napi_struct *napi, int budget) -{ - struct bcm_enet_priv *priv; - struct net_device *dev; - int tx_work_done, rx_work_done; - - priv = container_of(napi, struct bcm_enet_priv, napi); - dev = priv->net_dev; - - /* ack interrupts */ - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IR_REG(priv->rx_chan)); - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IR_REG(priv->tx_chan)); - - /* reclaim sent skb */ - tx_work_done = bcm_enet_tx_reclaim(dev, 0); - - spin_lock(&priv->rx_lock); - rx_work_done = bcm_enet_receive_queue(dev, budget); - spin_unlock(&priv->rx_lock); - - if (rx_work_done >= budget || tx_work_done > 0) { - /* rx/tx queue is not yet empty/clean */ - return rx_work_done; - } - - /* no more packet in rx/tx queue, remove device from poll - * queue */ -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) - netif_rx_complete(dev, napi); -#else - napi_complete(napi); -#endif - - /* restore rx/tx interrupt */ - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IRMASK_REG(priv->rx_chan)); - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IRMASK_REG(priv->tx_chan)); - - return rx_work_done; -} - -/* - * mac interrupt handler - */ -static irqreturn_t bcm_enet_isr_mac(int irq, void *dev_id) -{ - struct net_device *dev; - struct bcm_enet_priv *priv; - u32 stat; - - dev = dev_id; - priv = netdev_priv(dev); - - stat = enet_readl(priv, ENET_IR_REG); - if (!(stat & ENET_IR_MIB)) - return IRQ_NONE; - - /* clear & mask interrupt */ - enet_writel(priv, ENET_IR_MIB, ENET_IR_REG); - enet_writel(priv, 0, ENET_IRMASK_REG); - - /* read mib registers in workqueue */ - schedule_work(&priv->mib_update_task); - - return IRQ_HANDLED; -} - -/* - * rx/tx dma interrupt handler - */ -static irqreturn_t bcm_enet_isr_dma(int irq, void *dev_id) -{ - struct net_device *dev; - struct bcm_enet_priv *priv; - - dev = dev_id; - priv = netdev_priv(dev); - - /* mask rx/tx interrupts */ - enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan)); - enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan)); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30) - netif_rx_schedule(dev, &priv->napi); -#else - napi_schedule(&priv->napi); -#endif - - return IRQ_HANDLED; -} - -/* - * tx request callback - */ -static int bcm_enet_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct bcm_enet_priv *priv; - struct bcm_enet_desc *desc; - u32 len_stat; - int ret; - - priv = netdev_priv(dev); - - /* lock against tx reclaim */ - spin_lock(&priv->tx_lock); - - /* make sure the tx hw queue is not full, should not happen - * since we stop queue before it's the case */ - if (unlikely(!priv->tx_desc_count)) { - netif_stop_queue(dev); - dev_err(&priv->pdev->dev, "xmit called with no tx desc " - "available?\n"); - ret = NETDEV_TX_BUSY; - goto out_unlock; - } - - /* point to the next available desc */ - desc = &priv->tx_desc_cpu[priv->tx_curr_desc]; - priv->tx_skb[priv->tx_curr_desc] = skb; - - /* fill descriptor */ - desc->address = dma_map_single(&priv->pdev->dev, skb->data, skb->len, - DMA_TO_DEVICE); - - len_stat = (skb->len << DMADESC_LENGTH_SHIFT) & DMADESC_LENGTH_MASK; - len_stat |= DMADESC_ESOP_MASK | - DMADESC_APPEND_CRC | - DMADESC_OWNER_MASK; - - priv->tx_curr_desc++; - if (priv->tx_curr_desc == priv->tx_ring_size) { - priv->tx_curr_desc = 0; - len_stat |= DMADESC_WRAP_MASK; - } - priv->tx_desc_count--; - - /* dma might be already polling, make sure we update desc - * fields in correct order */ - wmb(); - desc->len_stat = len_stat; - wmb(); - - /* kick tx dma */ - enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK, - ENETDMA_CHANCFG_REG(priv->tx_chan)); - - /* stop queue if no more desc available */ - if (!priv->tx_desc_count) - netif_stop_queue(dev); - - priv->stats.tx_bytes += skb->len; - priv->stats.tx_packets++; - dev->trans_start = jiffies; - ret = NETDEV_TX_OK; - -out_unlock: - spin_unlock(&priv->tx_lock); - return ret; -} - -/* - * Change the interface's mac address. - */ -static int bcm_enet_set_mac_address(struct net_device *dev, void *p) -{ - struct bcm_enet_priv *priv; - struct sockaddr *addr = p; - u32 val; - - priv = netdev_priv(dev); - memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); - - /* use perfect match register 0 to store my mac address */ - val = (dev->dev_addr[2] << 24) | (dev->dev_addr[3] << 16) | - (dev->dev_addr[4] << 8) | dev->dev_addr[5]; - enet_writel(priv, val, ENET_PML_REG(0)); - - val = (dev->dev_addr[0] << 8 | dev->dev_addr[1]); - val |= ENET_PMH_DATAVALID_MASK; - enet_writel(priv, val, ENET_PMH_REG(0)); - - return 0; -} - -/* - * Change rx mode (promiscous/allmulti) and update multicast list - */ -static void bcm_enet_set_multicast_list(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - struct dev_mc_list *mc_list; - u32 val; - int i; - - priv = netdev_priv(dev); - - val = enet_readl(priv, ENET_RXCFG_REG); - - if (dev->flags & IFF_PROMISC) - val |= ENET_RXCFG_PROMISC_MASK; - else - val &= ~ENET_RXCFG_PROMISC_MASK; - - /* only 3 perfect match registers left, first one is used for - * own mac address */ - if ((dev->flags & IFF_ALLMULTI) || dev->mc_count > 3) - val |= ENET_RXCFG_ALLMCAST_MASK; - else - val &= ~ENET_RXCFG_ALLMCAST_MASK; - - /* no need to set perfect match registers if we catch all - * multicast */ - if (val & ENET_RXCFG_ALLMCAST_MASK) { - enet_writel(priv, val, ENET_RXCFG_REG); - return; - } - - for (i = 0, mc_list = dev->mc_list; - (mc_list != NULL) && (i < dev->mc_count) && (i < 3); - i++, mc_list = mc_list->next) { - u8 *dmi_addr; - u32 tmp; - - /* filter non ethernet address */ - if (mc_list->dmi_addrlen != 6) - continue; - - /* update perfect match registers */ - dmi_addr = mc_list->dmi_addr; - tmp = (dmi_addr[2] << 24) | (dmi_addr[3] << 16) | - (dmi_addr[4] << 8) | dmi_addr[5]; - enet_writel(priv, tmp, ENET_PML_REG(i + 1)); - - tmp = (dmi_addr[0] << 8 | dmi_addr[1]); - tmp |= ENET_PMH_DATAVALID_MASK; - enet_writel(priv, tmp, ENET_PMH_REG(i + 1)); - } - - for (; i < 3; i++) { - enet_writel(priv, 0, ENET_PML_REG(i + 1)); - enet_writel(priv, 0, ENET_PMH_REG(i + 1)); - } - - enet_writel(priv, val, ENET_RXCFG_REG); -} - -/* - * set mac duplex parameters - */ -static void bcm_enet_set_duplex(struct bcm_enet_priv *priv, int fullduplex) -{ - u32 val; - - val = enet_readl(priv, ENET_TXCTL_REG); - if (fullduplex) - val |= ENET_TXCTL_FD_MASK; - else - val &= ~ENET_TXCTL_FD_MASK; - enet_writel(priv, val, ENET_TXCTL_REG); -} - -/* - * set mac flow control parameters - */ -static void bcm_enet_set_flow(struct bcm_enet_priv *priv, int rx_en, int tx_en) -{ - u32 val; - - /* rx flow control (pause frame handling) */ - val = enet_readl(priv, ENET_RXCFG_REG); - if (rx_en) - val |= ENET_RXCFG_ENFLOW_MASK; - else - val &= ~ENET_RXCFG_ENFLOW_MASK; - enet_writel(priv, val, ENET_RXCFG_REG); - - /* tx flow control (pause frame generation) */ - val = enet_dma_readl(priv, ENETDMA_CFG_REG); - if (tx_en) - val |= ENETDMA_CFG_FLOWCH_MASK(priv->rx_chan); - else - val &= ~ENETDMA_CFG_FLOWCH_MASK(priv->rx_chan); - enet_dma_writel(priv, val, ENETDMA_CFG_REG); -} - -/* - * link changed callback (from phylib) - */ -static void bcm_enet_adjust_phy_link(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - struct phy_device *phydev; - int status_changed; - - priv = netdev_priv(dev); - phydev = priv->phydev; - status_changed = 0; - - if (priv->old_link != phydev->link) { - status_changed = 1; - priv->old_link = phydev->link; - } - - /* reflect duplex change in mac configuration */ - if (phydev->link && phydev->duplex != priv->old_duplex) { - bcm_enet_set_duplex(priv, - (phydev->duplex == DUPLEX_FULL) ? 1 : 0); - status_changed = 1; - priv->old_duplex = phydev->duplex; - } - - /* enable flow control if remote advertise it (trust phylib to - * check that duplex is full */ - if (phydev->link && phydev->pause != priv->old_pause) { - int rx_pause_en, tx_pause_en; - - if (phydev->pause) { - /* pause was advertised by lpa and us */ - rx_pause_en = 1; - tx_pause_en = 1; - } else if (!priv->pause_auto) { - /* pause setting overrided by user */ - rx_pause_en = priv->pause_rx; - tx_pause_en = priv->pause_tx; - } else { - rx_pause_en = 0; - tx_pause_en = 0; - } - - bcm_enet_set_flow(priv, rx_pause_en, tx_pause_en); - status_changed = 1; - priv->old_pause = phydev->pause; - } - - if (status_changed) { - pr_info("%s: link %s", dev->name, phydev->link ? - "UP" : "DOWN"); - if (phydev->link) - printk(" - %d/%s - flow control %s", phydev->speed, - DUPLEX_FULL == phydev->duplex ? "full" : "half", - phydev->pause == 1 ? "rx&tx" : "off"); - - printk("\n"); - } -} - -/* - * link changed callback (if phylib is not used) - */ -static void bcm_enet_adjust_link(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - bcm_enet_set_duplex(priv, priv->force_duplex_full); - bcm_enet_set_flow(priv, priv->pause_rx, priv->pause_tx); - - pr_info("%s: link forced UP - %d/%s - flow control %s/%s\n", - dev->name, - priv->force_speed_100 ? 100 : 10, - priv->force_duplex_full ? "full" : "half", - priv->pause_rx ? "rx" : "off", - priv->pause_tx ? "tx" : "off"); -} - -/* - * open callback, allocate dma rings & buffers and start rx operation - */ -static int bcm_enet_open(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - struct sockaddr addr; - struct device *kdev; - struct phy_device *phydev; - int irq_requested, i, ret; - unsigned int size; - char phy_id[BUS_ID_SIZE]; - void *p; - u32 val; - - priv = netdev_priv(dev); - priv->rx_desc_cpu = priv->tx_desc_cpu = NULL; - priv->rx_skb = priv->tx_skb = NULL; - - kdev = &priv->pdev->dev; - - if (priv->has_phy) { - /* connect to PHY */ - snprintf(phy_id, BUS_ID_SIZE, PHY_ID_FMT, - priv->mac_id ? "1" : "0", priv->phy_id); - - phydev = phy_connect(dev, phy_id, &bcm_enet_adjust_phy_link, 0, - PHY_INTERFACE_MODE_MII); - - if (IS_ERR(phydev)) { - dev_err(kdev, "could not attach to PHY\n"); - return PTR_ERR(phydev); - } - - /* mask with MAC supported features */ - phydev->supported &= (SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_100baseT_Half | - SUPPORTED_100baseT_Full | - SUPPORTED_Autoneg | - SUPPORTED_Pause | - SUPPORTED_MII); - phydev->advertising = phydev->supported; - - if (priv->pause_auto && priv->pause_rx && priv->pause_tx) - phydev->advertising |= SUPPORTED_Pause; - else - phydev->advertising &= ~SUPPORTED_Pause; - - dev_info(kdev, "attached PHY at address %d [%s]\n", - phydev->addr, phydev->drv->name); - - priv->old_link = 0; - priv->old_duplex = -1; - priv->old_pause = -1; - priv->phydev = phydev; - } - - /* mask all interrupts and request them */ - enet_writel(priv, 0, ENET_IRMASK_REG); - enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan)); - enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan)); - - irq_requested = 0; - ret = request_irq(dev->irq, bcm_enet_isr_mac, 0, dev->name, dev); - if (ret) - goto out; - irq_requested++; - - ret = request_irq(priv->irq_rx, bcm_enet_isr_dma, - IRQF_SAMPLE_RANDOM | IRQF_DISABLED, dev->name, dev); - if (ret) - goto out; - irq_requested++; - - ret = request_irq(priv->irq_tx, bcm_enet_isr_dma, - IRQF_DISABLED, dev->name, dev); - if (ret) - goto out; - irq_requested++; - - /* initialize perfect match registers */ - for (i = 0; i < 4; i++) { - enet_writel(priv, 0, ENET_PML_REG(i)); - enet_writel(priv, 0, ENET_PMH_REG(i)); - } - - /* write device mac address */ - memcpy(addr.sa_data, dev->dev_addr, ETH_ALEN); - bcm_enet_set_mac_address(dev, &addr); - - /* allocate rx dma ring */ - size = priv->rx_ring_size * sizeof(struct bcm_enet_desc); - p = dma_alloc_coherent(kdev, size, &priv->rx_desc_dma, GFP_KERNEL); - if (!p) { - dev_err(kdev, "cannot allocate rx ring %u\n", size); - ret = -ENOMEM; - goto out; - } - - memset(p, 0, size); - priv->rx_desc_alloc_size = size; - priv->rx_desc_cpu = p; - - /* allocate tx dma ring */ - size = priv->tx_ring_size * sizeof(struct bcm_enet_desc); - p = dma_alloc_coherent(kdev, size, &priv->tx_desc_dma, GFP_KERNEL); - if (!p) { - dev_err(kdev, "cannot allocate tx ring\n"); - ret = -ENOMEM; - goto out; - } - - memset(p, 0, size); - priv->tx_desc_alloc_size = size; - priv->tx_desc_cpu = p; - - priv->tx_skb = kzalloc(sizeof(struct sk_buff *) * priv->tx_ring_size, - GFP_KERNEL); - if (!priv->tx_skb) { - dev_err(kdev, "cannot allocate rx skb queue\n"); - ret = -ENOMEM; - goto out; - } - - priv->tx_desc_count = priv->tx_ring_size; - priv->tx_dirty_desc = 0; - priv->tx_curr_desc = 0; - spin_lock_init(&priv->tx_lock); - - /* init & fill rx ring with skbs */ - priv->rx_skb = kzalloc(sizeof(struct sk_buff *) * priv->rx_ring_size, - GFP_KERNEL); - if (!priv->rx_skb) { - dev_err(kdev, "cannot allocate rx skb queue\n"); - ret = -ENOMEM; - goto out; - } - - priv->rx_desc_count = 0; - priv->rx_dirty_desc = 0; - priv->rx_curr_desc = 0; - - /* initialize flow control buffer allocation */ - enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0, - ENETDMA_BUFALLOC_REG(priv->rx_chan)); - - if (bcm_enet_refill_rx(dev)) { - dev_err(kdev, "cannot allocate rx skb queue\n"); - ret = -ENOMEM; - goto out; - } - - /* write rx & tx ring addresses */ - enet_dma_writel(priv, priv->rx_desc_dma, - ENETDMA_RSTART_REG(priv->rx_chan)); - enet_dma_writel(priv, priv->tx_desc_dma, - ENETDMA_RSTART_REG(priv->tx_chan)); - - /* clear remaining state ram for rx & tx channel */ - enet_dma_writel(priv, 0, ENETDMA_SRAM2_REG(priv->rx_chan)); - enet_dma_writel(priv, 0, ENETDMA_SRAM2_REG(priv->tx_chan)); - enet_dma_writel(priv, 0, ENETDMA_SRAM3_REG(priv->rx_chan)); - enet_dma_writel(priv, 0, ENETDMA_SRAM3_REG(priv->tx_chan)); - enet_dma_writel(priv, 0, ENETDMA_SRAM4_REG(priv->rx_chan)); - enet_dma_writel(priv, 0, ENETDMA_SRAM4_REG(priv->tx_chan)); - - /* set max rx/tx length */ - enet_writel(priv, priv->hw_mtu, ENET_RXMAXLEN_REG); - enet_writel(priv, priv->hw_mtu, ENET_TXMAXLEN_REG); - - /* set dma maximum burst len */ - enet_dma_writel(priv, BCMENET_DMA_MAXBURST, - ENETDMA_MAXBURST_REG(priv->rx_chan)); - enet_dma_writel(priv, BCMENET_DMA_MAXBURST, - ENETDMA_MAXBURST_REG(priv->tx_chan)); - - /* set correct transmit fifo watermark */ - enet_writel(priv, BCMENET_TX_FIFO_TRESH, ENET_TXWMARK_REG); - - /* set flow control low/high threshold to 1/3 / 2/3 */ - val = priv->rx_ring_size / 3; - enet_dma_writel(priv, val, ENETDMA_FLOWCL_REG(priv->rx_chan)); - val = (priv->rx_ring_size * 2) / 3; - enet_dma_writel(priv, val, ENETDMA_FLOWCH_REG(priv->rx_chan)); - - /* all set, enable mac and interrupts, start dma engine and - * kick rx dma channel */ - wmb(); - enet_writel(priv, ENET_CTL_ENABLE_MASK, ENET_CTL_REG); - enet_dma_writel(priv, ENETDMA_CFG_EN_MASK, ENETDMA_CFG_REG); - enet_dma_writel(priv, ENETDMA_CHANCFG_EN_MASK, - ENETDMA_CHANCFG_REG(priv->rx_chan)); - - /* watch "mib counters about to overflow" interrupt */ - enet_writel(priv, ENET_IR_MIB, ENET_IR_REG); - enet_writel(priv, ENET_IR_MIB, ENET_IRMASK_REG); - - /* watch "packet transferred" interrupt in rx and tx */ - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IR_REG(priv->rx_chan)); - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IR_REG(priv->tx_chan)); - - /* make sure we enable napi before rx interrupt */ - napi_enable(&priv->napi); - - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IRMASK_REG(priv->rx_chan)); - enet_dma_writel(priv, ENETDMA_IR_PKTDONE_MASK, - ENETDMA_IRMASK_REG(priv->tx_chan)); - - if (priv->has_phy) - phy_start(priv->phydev); - else - bcm_enet_adjust_link(dev); - - netif_start_queue(dev); - return 0; - -out: - phy_disconnect(priv->phydev); - if (irq_requested > 2) - free_irq(priv->irq_tx, dev); - if (irq_requested > 1) - free_irq(priv->irq_rx, dev); - if (irq_requested > 0) - free_irq(dev->irq, dev); - for (i = 0; i < priv->rx_ring_size; i++) { - struct bcm_enet_desc *desc; - - if (!priv->rx_skb[i]) - continue; - - desc = &priv->rx_desc_cpu[i]; - dma_unmap_single(kdev, desc->address, priv->rx_skb_size, - DMA_FROM_DEVICE); - kfree_skb(priv->rx_skb[i]); - } - if (priv->rx_desc_cpu) - dma_free_coherent(kdev, priv->rx_desc_alloc_size, - priv->rx_desc_cpu, priv->rx_desc_dma); - if (priv->tx_desc_cpu) - dma_free_coherent(kdev, priv->tx_desc_alloc_size, - priv->tx_desc_cpu, priv->tx_desc_dma); - kfree(priv->rx_skb); - kfree(priv->tx_skb); - return ret; -} - -/* - * disable mac - */ -static void bcm_enet_disable_mac(struct bcm_enet_priv *priv) -{ - int limit; - u32 val; - - val = enet_readl(priv, ENET_CTL_REG); - val |= ENET_CTL_DISABLE_MASK; - enet_writel(priv, val, ENET_CTL_REG); - - limit = 1000; - do { - u32 val; - - val = enet_readl(priv, ENET_CTL_REG); - if (!(val & ENET_CTL_DISABLE_MASK)) - break; - udelay(1); - } while (limit--); -} - -/* - * disable dma in given channel - */ -static void bcm_enet_disable_dma(struct bcm_enet_priv *priv, int chan) -{ - int limit; - - enet_dma_writel(priv, 0, ENETDMA_CHANCFG_REG(chan)); - - limit = 1000; - do { - u32 val; - - val = enet_dma_readl(priv, ENETDMA_CHANCFG_REG(chan)); - if (!(val & ENETDMA_CHANCFG_EN_MASK)) - break; - udelay(1); - } while (limit--); -} - -/* - * stop callback - */ -static int bcm_enet_stop(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - struct device *kdev; - int i; - - priv = netdev_priv(dev); - kdev = &priv->pdev->dev; - - netif_stop_queue(dev); - napi_disable(&priv->napi); - if (priv->has_phy) - phy_stop(priv->phydev); - del_timer_sync(&priv->rx_timeout); - - /* mask all interrupts */ - enet_writel(priv, 0, ENET_IRMASK_REG); - enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->rx_chan)); - enet_dma_writel(priv, 0, ENETDMA_IRMASK_REG(priv->tx_chan)); - - /* make sure no mib update is scheduled */ - flush_scheduled_work(); - - /* disable dma & mac */ - bcm_enet_disable_dma(priv, priv->tx_chan); - bcm_enet_disable_dma(priv, priv->rx_chan); - bcm_enet_disable_mac(priv); - - /* force reclaim of all tx buffers */ - bcm_enet_tx_reclaim(dev, 1); - - /* free the rx skb ring */ - for (i = 0; i < priv->rx_ring_size; i++) { - struct bcm_enet_desc *desc; - - if (!priv->rx_skb[i]) - continue; - - desc = &priv->rx_desc_cpu[i]; - dma_unmap_single(kdev, desc->address, priv->rx_skb_size, - DMA_FROM_DEVICE); - kfree_skb(priv->rx_skb[i]); - } - - /* free remaining allocated memory */ - kfree(priv->rx_skb); - kfree(priv->tx_skb); - dma_free_coherent(kdev, priv->rx_desc_alloc_size, - priv->rx_desc_cpu, priv->rx_desc_dma); - dma_free_coherent(kdev, priv->tx_desc_alloc_size, - priv->tx_desc_cpu, priv->tx_desc_dma); - free_irq(priv->irq_tx, dev); - free_irq(priv->irq_rx, dev); - free_irq(dev->irq, dev); - - /* release phy */ - if (priv->has_phy) { - phy_disconnect(priv->phydev); - priv->phydev = NULL; - } - - return 0; -} - -/* - * core request to return device rx/tx stats - */ -static struct net_device_stats *bcm_enet_get_stats(struct net_device *dev) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - return &priv->stats; -} - -/* - * ethtool callbacks - */ -struct bcm_enet_stats { - char stat_string[ETH_GSTRING_LEN]; - int sizeof_stat; - int stat_offset; - int mib_reg; -}; - -#define GEN_STAT(m) sizeof(((struct bcm_enet_priv *)0)->m), \ - offsetof(struct bcm_enet_priv, m) - -static const struct bcm_enet_stats bcm_enet_gstrings_stats[] = { - { "rx_packets", GEN_STAT(stats.rx_packets), -1 }, - { "tx_packets", GEN_STAT(stats.tx_packets), -1 }, - { "rx_bytes", GEN_STAT(stats.rx_bytes), -1 }, - { "tx_bytes", GEN_STAT(stats.tx_bytes), -1 }, - { "rx_errors", GEN_STAT(stats.rx_errors), -1 }, - { "tx_errors", GEN_STAT(stats.tx_errors), -1 }, - { "rx_dropped", GEN_STAT(stats.rx_dropped), -1 }, - { "tx_dropped", GEN_STAT(stats.tx_dropped), -1 }, - - { "rx_good_octets", GEN_STAT(mib.rx_gd_octets), ETH_MIB_RX_GD_OCTETS}, - { "rx_good_pkts", GEN_STAT(mib.rx_gd_pkts), ETH_MIB_RX_GD_PKTS }, - { "rx_broadcast", GEN_STAT(mib.rx_brdcast), ETH_MIB_RX_BRDCAST }, - { "rx_multicast", GEN_STAT(mib.rx_mult), ETH_MIB_RX_MULT }, - { "rx_64_octets", GEN_STAT(mib.rx_64), ETH_MIB_RX_64 }, - { "rx_65_127_oct", GEN_STAT(mib.rx_65_127), ETH_MIB_RX_65_127 }, - { "rx_128_255_oct", GEN_STAT(mib.rx_128_255), ETH_MIB_RX_128_255 }, - { "rx_256_511_oct", GEN_STAT(mib.rx_256_511), ETH_MIB_RX_256_511 }, - { "rx_512_1023_oct", GEN_STAT(mib.rx_512_1023), ETH_MIB_RX_512_1023 }, - { "rx_1024_max_oct", GEN_STAT(mib.rx_1024_max), ETH_MIB_RX_1024_MAX }, - { "rx_jabber", GEN_STAT(mib.rx_jab), ETH_MIB_RX_JAB }, - { "rx_oversize", GEN_STAT(mib.rx_ovr), ETH_MIB_RX_OVR }, - { "rx_fragment", GEN_STAT(mib.rx_frag), ETH_MIB_RX_FRAG }, - { "rx_dropped", GEN_STAT(mib.rx_drop), ETH_MIB_RX_DROP }, - { "rx_crc_align", GEN_STAT(mib.rx_crc_align), ETH_MIB_RX_CRC_ALIGN }, - { "rx_undersize", GEN_STAT(mib.rx_und), ETH_MIB_RX_UND }, - { "rx_crc", GEN_STAT(mib.rx_crc), ETH_MIB_RX_CRC }, - { "rx_align", GEN_STAT(mib.rx_align), ETH_MIB_RX_ALIGN }, - { "rx_symbol_error", GEN_STAT(mib.rx_sym), ETH_MIB_RX_SYM }, - { "rx_pause", GEN_STAT(mib.rx_pause), ETH_MIB_RX_PAUSE }, - { "rx_control", GEN_STAT(mib.rx_cntrl), ETH_MIB_RX_CNTRL }, - - { "tx_good_octets", GEN_STAT(mib.tx_gd_octets), ETH_MIB_TX_GD_OCTETS }, - { "tx_good_pkts", GEN_STAT(mib.tx_gd_pkts), ETH_MIB_TX_GD_PKTS }, - { "tx_broadcast", GEN_STAT(mib.tx_brdcast), ETH_MIB_TX_BRDCAST }, - { "tx_multicast", GEN_STAT(mib.tx_mult), ETH_MIB_TX_MULT }, - { "tx_64_oct", GEN_STAT(mib.tx_64), ETH_MIB_TX_64 }, - { "tx_65_127_oct", GEN_STAT(mib.tx_65_127), ETH_MIB_TX_65_127 }, - { "tx_128_255_oct", GEN_STAT(mib.tx_128_255), ETH_MIB_TX_128_255 }, - { "tx_256_511_oct", GEN_STAT(mib.tx_256_511), ETH_MIB_TX_256_511 }, - { "tx_512_1023_oct", GEN_STAT(mib.tx_512_1023), ETH_MIB_TX_512_1023}, - { "tx_1024_max_oct", GEN_STAT(mib.tx_1024_max), ETH_MIB_TX_1024_MAX }, - { "tx_jabber", GEN_STAT(mib.tx_jab), ETH_MIB_TX_JAB }, - { "tx_oversize", GEN_STAT(mib.tx_ovr), ETH_MIB_TX_OVR }, - { "tx_fragment", GEN_STAT(mib.tx_frag), ETH_MIB_TX_FRAG }, - { "tx_underrun", GEN_STAT(mib.tx_underrun), ETH_MIB_TX_UNDERRUN }, - { "tx_collisions", GEN_STAT(mib.tx_col), ETH_MIB_TX_COL }, - { "tx_single_collision", GEN_STAT(mib.tx_1_col), ETH_MIB_TX_1_COL }, - { "tx_multiple_collision", GEN_STAT(mib.tx_m_col), ETH_MIB_TX_M_COL }, - { "tx_excess_collision", GEN_STAT(mib.tx_ex_col), ETH_MIB_TX_EX_COL }, - { "tx_late_collision", GEN_STAT(mib.tx_late), ETH_MIB_TX_LATE }, - { "tx_deferred", GEN_STAT(mib.tx_def), ETH_MIB_TX_DEF }, - { "tx_carrier_sense", GEN_STAT(mib.tx_crs), ETH_MIB_TX_CRS }, - { "tx_pause", GEN_STAT(mib.tx_pause), ETH_MIB_TX_PAUSE }, - -}; - -#define BCM_ENET_STATS_LEN \ - (sizeof(bcm_enet_gstrings_stats) / sizeof(struct bcm_enet_stats)) - -static const u32 unused_mib_regs[] = { - ETH_MIB_TX_ALL_OCTETS, - ETH_MIB_TX_ALL_PKTS, - ETH_MIB_RX_ALL_OCTETS, - ETH_MIB_RX_ALL_PKTS, -}; - - -static void bcm_enet_get_drvinfo(struct net_device *netdev, - struct ethtool_drvinfo *drvinfo) -{ - strncpy(drvinfo->driver, bcm_enet_driver_name, 32); - strncpy(drvinfo->version, bcm_enet_driver_version, 32); - strncpy(drvinfo->fw_version, "N/A", 32); - strncpy(drvinfo->bus_info, "bcm63xx", 32); - drvinfo->n_stats = BCM_ENET_STATS_LEN; -} - -static int bcm_enet_get_stats_count(struct net_device *netdev) -{ - return BCM_ENET_STATS_LEN; -} - -static void bcm_enet_get_strings(struct net_device *netdev, - u32 stringset, u8 *data) -{ - int i; - - switch (stringset) { - case ETH_SS_STATS: - for (i = 0; i < BCM_ENET_STATS_LEN; i++) { - memcpy(data + i * ETH_GSTRING_LEN, - bcm_enet_gstrings_stats[i].stat_string, - ETH_GSTRING_LEN); - } - break; - } -} - -static void update_mib_counters(struct bcm_enet_priv *priv) -{ - int i; - - for (i = 0; i < BCM_ENET_STATS_LEN; i++) { - const struct bcm_enet_stats *s; - u32 val; - char *p; - - s = &bcm_enet_gstrings_stats[i]; - if (s->mib_reg == -1) - continue; - - val = enet_readl(priv, ENET_MIB_REG(s->mib_reg)); - p = (char *)priv + s->stat_offset; - - if (s->sizeof_stat == sizeof(u64)) - *(u64 *)p += val; - else - *(u32 *)p += val; - } - - /* also empty unused mib counters to make sure mib counter - * overflow interrupt is cleared */ - for (i = 0; i < ARRAY_SIZE(unused_mib_regs); i++) - (void)enet_readl(priv, ENET_MIB_REG(unused_mib_regs[i])); -} - -static void bcm_enet_update_mib_counters_defer(struct work_struct *t) -{ - struct bcm_enet_priv *priv; - - priv = container_of(t, struct bcm_enet_priv, mib_update_task); - mutex_lock(&priv->mib_update_lock); - update_mib_counters(priv); - mutex_unlock(&priv->mib_update_lock); - - /* reenable mib interrupt */ - if (netif_running(priv->net_dev)) - enet_writel(priv, ENET_IR_MIB, ENET_IRMASK_REG); -} - -static void bcm_enet_get_ethtool_stats(struct net_device *netdev, - struct ethtool_stats *stats, - u64 *data) -{ - struct bcm_enet_priv *priv; - int i; - - priv = netdev_priv(netdev); - - mutex_lock(&priv->mib_update_lock); - update_mib_counters(priv); - - for (i = 0; i < BCM_ENET_STATS_LEN; i++) { - const struct bcm_enet_stats *s; - char *p; - - s = &bcm_enet_gstrings_stats[i]; - p = (char *)priv + s->stat_offset; - data[i] = (s->sizeof_stat == sizeof(u64)) ? - *(u64 *)p : *(u32 *)p; - } - mutex_unlock(&priv->mib_update_lock); -} - -static int bcm_enet_get_settings(struct net_device *dev, - struct ethtool_cmd *cmd) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - - cmd->maxrxpkt = 0; - cmd->maxtxpkt = 0; - - if (priv->has_phy) { - if (!priv->phydev) - return -ENODEV; - return phy_ethtool_gset(priv->phydev, cmd); - } else { - cmd->autoneg = 0; - cmd->speed = (priv->force_speed_100) ? SPEED_100 : SPEED_10; - cmd->duplex = (priv->force_duplex_full) ? - DUPLEX_FULL : DUPLEX_HALF; - cmd->supported = ADVERTISED_10baseT_Half | - ADVERTISED_10baseT_Full | - ADVERTISED_100baseT_Half | - ADVERTISED_100baseT_Full; - cmd->advertising = 0; - cmd->port = PORT_MII; - cmd->transceiver = XCVR_EXTERNAL; - } - return 0; -} - -static int bcm_enet_set_settings(struct net_device *dev, - struct ethtool_cmd *cmd) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - if (priv->has_phy) { - if (!priv->phydev) - return -ENODEV; - return phy_ethtool_sset(priv->phydev, cmd); - } else { - - if (cmd->autoneg || - (cmd->speed != SPEED_100 && cmd->speed != SPEED_10) || - cmd->port != PORT_MII) - return -EINVAL; - - priv->force_speed_100 = (cmd->speed == SPEED_100) ? 1 : 0; - priv->force_duplex_full = (cmd->duplex == DUPLEX_FULL) ? 1 : 0; - - if (netif_running(dev)) - bcm_enet_adjust_link(dev); - return 0; - } -} - -static void bcm_enet_get_ringparam(struct net_device *dev, - struct ethtool_ringparam *ering) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - - /* rx/tx ring is actually only limited by memory */ - ering->rx_max_pending = 8192; - ering->tx_max_pending = 8192; - ering->rx_mini_max_pending = 0; - ering->rx_jumbo_max_pending = 0; - ering->rx_pending = priv->rx_ring_size; - ering->tx_pending = priv->tx_ring_size; -} - -static int bcm_enet_set_ringparam(struct net_device *dev, - struct ethtool_ringparam *ering) -{ - struct bcm_enet_priv *priv; - int was_running; - - priv = netdev_priv(dev); - - was_running = 0; - if (netif_running(dev)) { - bcm_enet_stop(dev); - was_running = 1; - } - - priv->rx_ring_size = ering->rx_pending; - priv->tx_ring_size = ering->tx_pending; - - if (was_running) { - int err; - - err = bcm_enet_open(dev); - if (err) - dev_close(dev); - else - bcm_enet_set_multicast_list(dev); - } - return 0; -} - -static void bcm_enet_get_pauseparam(struct net_device *dev, - struct ethtool_pauseparam *ecmd) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - ecmd->autoneg = priv->pause_auto; - ecmd->rx_pause = priv->pause_rx; - ecmd->tx_pause = priv->pause_tx; -} - -static int bcm_enet_set_pauseparam(struct net_device *dev, - struct ethtool_pauseparam *ecmd) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - - if (priv->has_phy) { - if (ecmd->autoneg && (ecmd->rx_pause != ecmd->tx_pause)) { - /* asymetric pause mode not supported, - * actually possible but integrated PHY has RO - * asym_pause bit */ - return -EINVAL; - } - } else { - /* no pause autoneg on direct mii connection */ - if (ecmd->autoneg) - return -EINVAL; - } - - priv->pause_auto = ecmd->autoneg; - priv->pause_rx = ecmd->rx_pause; - priv->pause_tx = ecmd->tx_pause; - - return 0; -} - -static struct ethtool_ops bcm_enet_ethtool_ops = { - .get_strings = bcm_enet_get_strings, - .get_stats_count = bcm_enet_get_stats_count, - .get_ethtool_stats = bcm_enet_get_ethtool_stats, - .get_settings = bcm_enet_get_settings, - .set_settings = bcm_enet_set_settings, - .get_drvinfo = bcm_enet_get_drvinfo, - .get_link = ethtool_op_get_link, - .get_ringparam = bcm_enet_get_ringparam, - .set_ringparam = bcm_enet_set_ringparam, - .get_pauseparam = bcm_enet_get_pauseparam, - .set_pauseparam = bcm_enet_set_pauseparam, -}; - -static int bcm_enet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct bcm_enet_priv *priv; - - priv = netdev_priv(dev); - if (priv->has_phy) { - if (!priv->phydev) - return -ENODEV; - return phy_mii_ioctl(priv->phydev, if_mii(rq), cmd); - } else { - struct mii_if_info mii; - - mii.dev = dev; - mii.mdio_read = bcm_enet_mdio_read_mii; - mii.mdio_write = bcm_enet_mdio_write_mii; - mii.phy_id = 0; - mii.phy_id_mask = 0x3f; - mii.reg_num_mask = 0x1f; - return generic_mii_ioctl(&mii, if_mii(rq), cmd, NULL); - } -} - -/* - * calculate actual hardware mtu - */ -static int compute_hw_mtu(struct bcm_enet_priv *priv, int mtu) -{ - int actual_mtu; - - actual_mtu = mtu; - - /* add ethernet header + vlan tag size */ - actual_mtu += VLAN_ETH_HLEN; - - if (actual_mtu < 64 || actual_mtu > BCMENET_MAX_MTU) - return -EINVAL; - - /* - * setup maximum size before we get overflow mark in - * descriptor, note that this will not prevent reception of - * big frames, they will be split into multiple buffers - * anyway - */ - priv->hw_mtu = actual_mtu; - - /* - * align rx buffer size to dma burst len, account FCS since - * it's appended - */ - priv->rx_skb_size = ALIGN(actual_mtu + ETH_FCS_LEN, - BCMENET_DMA_MAXBURST * 4); - return 0; -} - -/* - * adjust mtu, can't be called while device is running - */ -static int bcm_enet_change_mtu(struct net_device *dev, int new_mtu) -{ - int ret; - - if (netif_running(dev)) - return -EBUSY; - - ret = compute_hw_mtu(netdev_priv(dev), new_mtu); - if (ret) - return ret; - dev->mtu = new_mtu; - return 0; -} - -/* - * preinit hardware to allow mii operation while device is down - */ -static void bcm_enet_hw_preinit(struct bcm_enet_priv *priv) -{ - u32 val; - int limit; - - /* make sure mac is disabled */ - bcm_enet_disable_mac(priv); - - /* soft reset mac */ - val = ENET_CTL_SRESET_MASK; - enet_writel(priv, val, ENET_CTL_REG); - wmb(); - - limit = 1000; - do { - val = enet_readl(priv, ENET_CTL_REG); - if (!(val & ENET_CTL_SRESET_MASK)) - break; - udelay(1); - } while (limit--); - - /* select correct mii interface */ - val = enet_readl(priv, ENET_CTL_REG); - if (priv->use_external_mii) - val |= ENET_CTL_EPHYSEL_MASK; - else - val &= ~ENET_CTL_EPHYSEL_MASK; - enet_writel(priv, val, ENET_CTL_REG); - - /* turn on mdc clock */ - enet_writel(priv, (0x1f << ENET_MIISC_MDCFREQDIV_SHIFT) | - ENET_MIISC_PREAMBLEEN_MASK, ENET_MIISC_REG); - - /* set mib counters to self-clear when read */ - val = enet_readl(priv, ENET_MIBCTL_REG); - val |= ENET_MIBCTL_RDCLEAR_MASK; - enet_writel(priv, val, ENET_MIBCTL_REG); -} - -/* - * allocate netdevice, request register memory and register device. - */ -static int __devinit bcm_enet_probe(struct platform_device *pdev) -{ - struct bcm_enet_priv *priv; - struct net_device *dev; - struct bcm63xx_enet_platform_data *pd; - struct resource *res_mem, *res_irq, *res_irq_rx, *res_irq_tx; - struct mii_bus *bus; - const char *clk_name; - unsigned int iomem_size; - int i, ret, mdio_registered, mem_requested; - - /* stop if shared driver failed, assume driver->probe will be - * called in the same order we register devices (correct ?) */ - if (!bcm_enet_shared_base) - return -ENODEV; - - mdio_registered = mem_requested = 0; - - res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - res_irq_rx = platform_get_resource(pdev, IORESOURCE_IRQ, 1); - res_irq_tx = platform_get_resource(pdev, IORESOURCE_IRQ, 2); - if (!res_mem || !res_irq || !res_irq_rx || !res_irq_tx) - return -ENODEV; - - ret = 0; - dev = alloc_etherdev(sizeof(*priv)); - if (!dev) - return -ENOMEM; - priv = netdev_priv(dev); - memset(priv, 0, sizeof(*priv)); - - ret = compute_hw_mtu(priv, dev->mtu); - if (ret) - goto out; - - iomem_size = res_mem->end - res_mem->start + 1; - if (!request_mem_region(res_mem->start, iomem_size, "bcm63xx_enet")) { - ret = -EBUSY; - goto err; - } - mem_requested = 1; - - priv->base = ioremap(res_mem->start, iomem_size); - if (priv->base == NULL) { - ret = -ENOMEM; - goto err; - } - dev->irq = priv->irq = res_irq->start; - priv->irq_rx = res_irq_rx->start; - priv->irq_tx = res_irq_tx->start; - priv->mac_id = pdev->id; - - /* get rx & tx dma channel id for this mac */ - if (priv->mac_id == 0) { - priv->rx_chan = 0; - priv->tx_chan = 1; - clk_name = "enet0"; - } else { - priv->rx_chan = 2; - priv->tx_chan = 3; - clk_name = "enet1"; - } - - priv->mac_clk = clk_get(&pdev->dev, clk_name); - if (IS_ERR(priv->mac_clk)) { - ret = PTR_ERR(priv->mac_clk); - priv->mac_clk = NULL; - goto err; - } - clk_enable(priv->mac_clk); - - /* initialize default and fetch platform data */ - priv->rx_ring_size = BCMENET_DEF_RX_DESC; - priv->tx_ring_size = BCMENET_DEF_TX_DESC; - - pd = pdev->dev.platform_data; - if (pd) { - memcpy(dev->dev_addr, pd->mac_addr, ETH_ALEN); - priv->has_phy = pd->has_phy; - priv->phy_id = pd->phy_id; - priv->has_phy_interrupt = pd->has_phy_interrupt; - priv->phy_interrupt = pd->phy_interrupt; - priv->use_external_mii = !pd->use_internal_phy; - priv->pause_auto = pd->pause_auto; - priv->pause_rx = pd->pause_rx; - priv->pause_tx = pd->pause_tx; - priv->force_duplex_full = pd->force_duplex_full; - priv->force_speed_100 = pd->force_speed_100; - } - - if (priv->mac_id == 0 && priv->has_phy && !priv->use_external_mii) { - /* using internal PHY, enable clock */ - priv->phy_clk = clk_get(&pdev->dev, "ephy"); - if (IS_ERR(priv->phy_clk)) { - ret = PTR_ERR(priv->phy_clk); - priv->phy_clk = NULL; - goto err; - } - clk_enable(priv->phy_clk); - } - - /* do minimal hardware init to be able to probe mii bus */ - bcm_enet_hw_preinit(priv); - - /* MII bus registration */ - if (priv->has_phy) { - bus = &priv->mii_bus; - bus->name = "bcm63xx_enet MII bus"; -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28) - bus->dev = &pdev->dev; -#else - bus->parent = &pdev->dev; -#endif - bus->priv = priv; - bus->read = bcm_enet_mdio_read_phylib; - bus->write = bcm_enet_mdio_write_phylib; - sprintf(bus->id, "%d", priv->mac_id); - - /* only probe bus where we think the PHY is, because - * the mdio read operation return 0 instead of 0xffff - * if a slave is not present on hw */ - bus->phy_mask = ~(1 << priv->phy_id); - - bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); - if (!bus->irq) { - ret = -ENOMEM; - goto err; - } - - if (priv->has_phy_interrupt) - bus->irq[priv->phy_id] = priv->phy_interrupt; - else - bus->irq[priv->phy_id] = PHY_POLL; - - ret = mdiobus_register(bus); - if (ret) { - dev_err(&pdev->dev, "unable to register mdio bus\n"); - goto err; - } - mdio_registered = 1; - } else { - - /* run platform code to initialize PHY device */ - if (pd->mii_config && - pd->mii_config(dev, 1, bcm_enet_mdio_read_mii, - bcm_enet_mdio_write_mii)) { - dev_err(&pdev->dev, "unable to configure mdio bus\n"); - goto err; - } - } - - spin_lock_init(&priv->rx_lock); - - /* init rx timeout (used for oom) */ - init_timer(&priv->rx_timeout); - priv->rx_timeout.function = bcm_enet_refill_rx_timer; - priv->rx_timeout.data = (unsigned long)dev; - - /* init the mib update lock&work */ - mutex_init(&priv->mib_update_lock); - INIT_WORK(&priv->mib_update_task, bcm_enet_update_mib_counters_defer); - - /* zero mib counters */ - for (i = 0; i < ENET_MIB_REG_COUNT; i++) - enet_writel(priv, 0, ENET_MIB_REG(i)); - - /* register netdevice */ - dev->open = bcm_enet_open; - dev->stop = bcm_enet_stop; - dev->hard_start_xmit = bcm_enet_start_xmit; - dev->get_stats = bcm_enet_get_stats; - dev->set_mac_address = bcm_enet_set_mac_address; - dev->set_multicast_list = bcm_enet_set_multicast_list; - netif_napi_add(dev, &priv->napi, bcm_enet_poll, 16); - dev->do_ioctl = bcm_enet_ioctl; -#ifdef CONFIG_NET_POLL_CONTROLLER - dev->poll_controller = bcm_enet_netpoll; -#endif - dev->change_mtu = bcm_enet_change_mtu; - - SET_ETHTOOL_OPS(dev, &bcm_enet_ethtool_ops); - SET_NETDEV_DEV(dev, &pdev->dev); - - ret = register_netdev(dev); - if (ret) - goto err; - - platform_set_drvdata(pdev, dev); - priv->pdev = pdev; - priv->net_dev = dev; - - return 0; - -err: - if (mem_requested) - release_mem_region(res_mem->start, iomem_size); - if (mdio_registered) - mdiobus_unregister(&priv->mii_bus); - kfree(priv->mii_bus.irq); - if (priv->mac_clk) { - clk_disable(priv->mac_clk); - clk_put(priv->mac_clk); - } - if (priv->phy_clk) { - clk_disable(priv->phy_clk); - clk_put(priv->phy_clk); - } - if (priv->base) { - /* turn off mdc clock */ - enet_writel(priv, 0, ENET_MIISC_REG); - iounmap(priv->base); - } -out: - free_netdev(dev); - return ret; -} - - -/* - * exit func, stops hardware and unregisters netdevice - */ -static int __devexit bcm_enet_remove(struct platform_device *pdev) -{ - struct bcm_enet_priv *priv; - struct net_device *dev; - struct resource *res; - - /* stop netdevice */ - dev = platform_get_drvdata(pdev); - priv = netdev_priv(dev); - unregister_netdev(dev); - - /* turn off mdc clock */ - enet_writel(priv, 0, ENET_MIISC_REG); - - if (priv->has_phy) { - mdiobus_unregister(&priv->mii_bus); - kfree(priv->mii_bus.irq); - } else { - struct bcm63xx_enet_platform_data *pd; - - pd = pdev->dev.platform_data; - if (pd && pd->mii_config) - pd->mii_config(dev, 0, bcm_enet_mdio_read_mii, - bcm_enet_mdio_write_mii); - } - - /* release device resources */ - iounmap(priv->base); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, res->end - res->start + 1); - - /* disable hw block clocks */ - if (priv->phy_clk) { - clk_disable(priv->phy_clk); - clk_put(priv->phy_clk); - } - clk_disable(priv->mac_clk); - clk_put(priv->mac_clk); - - platform_set_drvdata(pdev, NULL); - free_netdev(dev); - return 0; -} - -struct platform_driver bcm63xx_enet_driver = { - .probe = bcm_enet_probe, - .remove = __devexit_p(bcm_enet_remove), - .driver = { - .name = "bcm63xx_enet", - .owner = THIS_MODULE, - }, -}; - -/* - * reserve & remap memory space shared between all macs - */ -static int __devinit bcm_enet_shared_probe(struct platform_device *pdev) -{ - struct resource *res; - unsigned int iomem_size; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - iomem_size = res->end - res->start + 1; - if (!request_mem_region(res->start, iomem_size, "bcm63xx_enet_dma")) - return -EBUSY; - - bcm_enet_shared_base = ioremap(res->start, iomem_size); - if (!bcm_enet_shared_base) { - release_mem_region(res->start, iomem_size); - return -ENOMEM; - } - return 0; -} - -static int __devexit bcm_enet_shared_remove(struct platform_device *pdev) -{ - struct resource *res; - - iounmap(bcm_enet_shared_base); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, res->end - res->start + 1); - return 0; -} - -/* - * this "shared" driver is needed because both macs share a single - * address space - */ -struct platform_driver bcm63xx_enet_shared_driver = { - .probe = bcm_enet_shared_probe, - .remove = __devexit_p(bcm_enet_shared_remove), - .driver = { - .name = "bcm63xx_enet_shared", - .owner = THIS_MODULE, - }, -}; - -/* - * entry point - */ -static int __init bcm_enet_init(void) -{ - int ret; - - ret = platform_driver_register(&bcm63xx_enet_shared_driver); - if (ret) - return ret; - - ret = platform_driver_register(&bcm63xx_enet_driver); - if (ret) - platform_driver_unregister(&bcm63xx_enet_shared_driver); - - return ret; -} - -static void __exit bcm_enet_exit(void) -{ - platform_driver_unregister(&bcm63xx_enet_driver); - platform_driver_unregister(&bcm63xx_enet_shared_driver); -} - - -module_init(bcm_enet_init); -module_exit(bcm_enet_exit); - -MODULE_DESCRIPTION("BCM63xx internal ethernet mac driver"); -MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/brcm63xx/files/drivers/net/bcm63xx_enet.h b/target/linux/brcm63xx/files/drivers/net/bcm63xx_enet.h deleted file mode 100644 index dc78f5ae2..000000000 --- a/target/linux/brcm63xx/files/drivers/net/bcm63xx_enet.h +++ /dev/null @@ -1,303 +0,0 @@ -#ifndef BCM63XX_ENET_H_ -#define BCM63XX_ENET_H_ - -#include <linux/types.h> -#include <linux/mii.h> -#include <linux/mutex.h> -#include <linux/phy.h> -#include <linux/platform_device.h> - -#include <bcm63xx_regs.h> -#include <bcm63xx_irq.h> -#include <bcm63xx_io.h> - -/* default number of descriptor */ -#define BCMENET_DEF_RX_DESC 64 -#define BCMENET_DEF_TX_DESC 32 - -/* maximum burst len for dma (4 bytes unit) */ -#define BCMENET_DMA_MAXBURST 16 - -/* tx transmit threshold (4 bytes unit), fifo is 256 bytes, the value - * must be low enough so that a DMA transfer of above burst length can - * not overflow the fifo */ -#define BCMENET_TX_FIFO_TRESH 32 - -/* - * hardware maximum rx/tx packet size including FCS, max mtu is - * actually 2047, but if we set max rx size register to 2047 we won't - * get overflow information if packet size is 2048 or above - */ -#define BCMENET_MAX_MTU 2046 - -/* - * rx/tx dma descriptor - */ -struct bcm_enet_desc { - u32 len_stat; - u32 address; -}; - -#define DMADESC_LENGTH_SHIFT 16 -#define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT) -#define DMADESC_OWNER_MASK (1 << 15) -#define DMADESC_EOP_MASK (1 << 14) -#define DMADESC_SOP_MASK (1 << 13) -#define DMADESC_ESOP_MASK (DMADESC_EOP_MASK | DMADESC_SOP_MASK) -#define DMADESC_WRAP_MASK (1 << 12) - -#define DMADESC_UNDER_MASK (1 << 9) -#define DMADESC_APPEND_CRC (1 << 8) -#define DMADESC_OVSIZE_MASK (1 << 4) -#define DMADESC_RXER_MASK (1 << 2) -#define DMADESC_CRC_MASK (1 << 1) -#define DMADESC_OV_MASK (1 << 0) -#define DMADESC_ERR_MASK (DMADESC_UNDER_MASK | \ - DMADESC_OVSIZE_MASK | \ - DMADESC_RXER_MASK | \ - DMADESC_CRC_MASK | \ - DMADESC_OV_MASK) - - -/* - * MIB Counters register definitions -*/ -#define ETH_MIB_TX_GD_OCTETS 0 -#define ETH_MIB_TX_GD_PKTS 1 -#define ETH_MIB_TX_ALL_OCTETS 2 -#define ETH_MIB_TX_ALL_PKTS 3 -#define ETH_MIB_TX_BRDCAST 4 -#define ETH_MIB_TX_MULT 5 -#define ETH_MIB_TX_64 6 -#define ETH_MIB_TX_65_127 7 -#define ETH_MIB_TX_128_255 8 -#define ETH_MIB_TX_256_511 9 -#define ETH_MIB_TX_512_1023 10 -#define ETH_MIB_TX_1024_MAX 11 -#define ETH_MIB_TX_JAB 12 -#define ETH_MIB_TX_OVR 13 -#define ETH_MIB_TX_FRAG 14 -#define ETH_MIB_TX_UNDERRUN 15 -#define ETH_MIB_TX_COL 16 -#define ETH_MIB_TX_1_COL 17 -#define ETH_MIB_TX_M_COL 18 -#define ETH_MIB_TX_EX_COL 19 -#define ETH_MIB_TX_LATE 20 -#define ETH_MIB_TX_DEF 21 -#define ETH_MIB_TX_CRS 22 -#define ETH_MIB_TX_PAUSE 23 - -#define ETH_MIB_RX_GD_OCTETS 32 -#define ETH_MIB_RX_GD_PKTS 33 -#define ETH_MIB_RX_ALL_OCTETS 34 -#define ETH_MIB_RX_ALL_PKTS 35 -#define ETH_MIB_RX_BRDCAST 36 -#define ETH_MIB_RX_MULT 37 -#define ETH_MIB_RX_64 38 -#define ETH_MIB_RX_65_127 39 -#define ETH_MIB_RX_128_255 40 -#define ETH_MIB_RX_256_511 41 -#define ETH_MIB_RX_512_1023 42 -#define ETH_MIB_RX_1024_MAX 43 -#define ETH_MIB_RX_JAB 44 -#define ETH_MIB_RX_OVR 45 -#define ETH_MIB_RX_FRAG 46 -#define ETH_MIB_RX_DROP 47 -#define ETH_MIB_RX_CRC_ALIGN 48 -#define ETH_MIB_RX_UND 49 -#define ETH_MIB_RX_CRC 50 -#define ETH_MIB_RX_ALIGN 51 -#define ETH_MIB_RX_SYM 52 -#define ETH_MIB_RX_PAUSE 53 -#define ETH_MIB_RX_CNTRL 54 - - -struct bcm_enet_mib_counters { - u64 tx_gd_octets; - u32 tx_gd_pkts; - u32 tx_all_octets; - u32 tx_all_pkts; - u32 tx_brdcast; - u32 tx_mult; - u32 tx_64; - u32 tx_65_127; - u32 tx_128_255; - u32 tx_256_511; - u32 tx_512_1023; - u32 tx_1024_max; - u32 tx_jab; - u32 tx_ovr; - u32 tx_frag; - u32 tx_underrun; - u32 tx_col; - u32 tx_1_col; - u32 tx_m_col; - u32 tx_ex_col; - u32 tx_late; - u32 tx_def; - u32 tx_crs; - u32 tx_pause; - u64 rx_gd_octets; - u32 rx_gd_pkts; - u32 rx_all_octets; - u32 rx_all_pkts; - u32 rx_brdcast; - u32 rx_mult; - u32 rx_64; - u32 rx_65_127; - u32 rx_128_255; - u32 rx_256_511; - u32 rx_512_1023; - u32 rx_1024_max; - u32 rx_jab; - u32 rx_ovr; - u32 rx_frag; - u32 rx_drop; - u32 rx_crc_align; - u32 rx_und; - u32 rx_crc; - u32 rx_align; - u32 rx_sym; - u32 rx_pause; - u32 rx_cntrl; -}; - - -struct bcm_enet_priv { - - /* mac id (from platform device id) */ - int mac_id; - - /* base remapped address of device */ - void __iomem *base; - - /* mac irq, rx_dma irq, tx_dma irq */ - int irq; - int irq_rx; - int irq_tx; - - /* hw view of rx & tx dma ring */ - dma_addr_t rx_desc_dma; - dma_addr_t tx_desc_dma; - - /* allocated size (in bytes) for rx & tx dma ring */ - unsigned int rx_desc_alloc_size; - unsigned int tx_desc_alloc_size; - - - struct napi_struct napi; - - /* dma channel id for rx */ - int rx_chan; - - /* number of dma desc in rx ring */ - int rx_ring_size; - - /* cpu view of rx dma ring */ - struct bcm_enet_desc *rx_desc_cpu; - - /* current number of armed descriptor given to hardware for rx */ - int rx_desc_count; - - /* next rx descriptor to fetch from hardware */ - int rx_curr_desc; - - /* next dirty rx descriptor to refill */ - int rx_dirty_desc; - - /* size of allocated rx skbs */ - unsigned int rx_skb_size; - - /* list of skb given to hw for rx */ - struct sk_buff **rx_skb; - - /* used when rx skb allocation failed, so we defer rx queue - * refill */ - struct timer_list rx_timeout; - - /* lock rx_timeout against rx normal operation */ - spinlock_t rx_lock; - - - /* dma channel id for tx */ - int tx_chan; - - /* number of dma desc in tx ring */ - int tx_ring_size; - - /* cpu view of rx dma ring */ - struct bcm_enet_desc *tx_desc_cpu; - - /* number of available descriptor for tx */ - int tx_desc_count; - - /* next tx descriptor avaiable */ - int tx_curr_desc; - - /* next dirty tx descriptor to reclaim */ - int tx_dirty_desc; - - /* list of skb given to hw for tx */ - struct sk_buff **tx_skb; - - /* lock used by tx reclaim and xmit */ - spinlock_t tx_lock; - - - /* set if internal phy is ignored and external mii interface - * is selected */ - int use_external_mii; - - /* set if a phy is connected, phy address must be known, - * probing is not possible */ - int has_phy; - int phy_id; - - /* set if connected phy has an associated irq */ - int has_phy_interrupt; - int phy_interrupt; - - /* used when a phy is connected (phylib used) */ - struct mii_bus mii_bus; - struct phy_device *phydev; - int old_link; - int old_duplex; - int old_pause; - - /* used when no phy is connected */ - int force_speed_100; - int force_duplex_full; - - /* pause parameters */ - int pause_auto; - int pause_rx; - int pause_tx; - - /* stats */ - struct net_device_stats stats; - struct bcm_enet_mib_counters mib; - - /* after mib interrupt, mib registers update is done in this - * work queue */ - struct work_struct mib_update_task; - - /* lock mib update between userspace request and workqueue */ - struct mutex mib_update_lock; - - /* mac clock */ - struct clk *mac_clk; - - /* phy clock if internal phy is used */ - struct clk *phy_clk; - - /* network device reference */ - struct net_device *net_dev; - - /* platform device reference */ - struct platform_device *pdev; - - /* maximum hardware transmit/receive size */ - unsigned int hw_mtu; -}; - -#endif /* ! BCM63XX_ENET_H_ */ diff --git a/target/linux/brcm63xx/files/drivers/net/phy/bcm63xx.c b/target/linux/brcm63xx/files/drivers/net/phy/bcm63xx.c deleted file mode 100644 index 4fed95e83..000000000 --- a/target/linux/brcm63xx/files/drivers/net/phy/bcm63xx.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Driver for Broadcom 63xx SOCs integrated PHYs - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/module.h> -#include <linux/phy.h> - -#define MII_BCM63XX_IR 0x1a /* interrupt register */ -#define MII_BCM63XX_IR_EN 0x4000 /* global interrupt enable */ -#define MII_BCM63XX_IR_DUPLEX 0x0800 /* duplex changed */ -#define MII_BCM63XX_IR_SPEED 0x0400 /* speed changed */ -#define MII_BCM63XX_IR_LINK 0x0200 /* link changed */ -#define MII_BCM63XX_IR_GMASK 0x0100 /* global interrupt mask */ - -MODULE_DESCRIPTION("Broadcom 63xx internal PHY driver"); -MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>"); -MODULE_LICENSE("GPL"); - -static int bcm63xx_config_init(struct phy_device *phydev) -{ - int reg, err; - - reg = phy_read(phydev, MII_BCM63XX_IR); - if (reg < 0) - return reg; - - /* Mask interrupts globally. */ - reg |= MII_BCM63XX_IR_GMASK; - err = phy_write(phydev, MII_BCM63XX_IR, reg); - if (err < 0) - return err; - - /* Unmask events we are interested in */ - reg = ~(MII_BCM63XX_IR_DUPLEX | - MII_BCM63XX_IR_SPEED | - MII_BCM63XX_IR_LINK) | - MII_BCM63XX_IR_EN; - err = phy_write(phydev, MII_BCM63XX_IR, reg); - if (err < 0) - return err; - return 0; -} - -static int bcm63xx_ack_interrupt(struct phy_device *phydev) -{ - int reg; - - /* Clear pending interrupts. */ - reg = phy_read(phydev, MII_BCM63XX_IR); - if (reg < 0) - return reg; - - return 0; -} - -static int bcm63xx_config_intr(struct phy_device *phydev) -{ - int reg, err; - - reg = phy_read(phydev, MII_BCM63XX_IR); - if (reg < 0) - return reg; - - if (phydev->interrupts == PHY_INTERRUPT_ENABLED) - reg &= ~MII_BCM63XX_IR_GMASK; - else - reg |= MII_BCM63XX_IR_GMASK; - - err = phy_write(phydev, MII_BCM63XX_IR, reg); - return err; -} - -static struct phy_driver bcm63xx_1_driver = { - .phy_id = 0x00406000, - .phy_id_mask = 0xfffffc00, - .name = "Broadcom BCM63XX (1)", - /* ASYM_PAUSE bit is marked RO in datasheet, so don't cheat */ - .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), - .flags = PHY_HAS_INTERRUPT, - .config_init = bcm63xx_config_init, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, - .ack_interrupt = bcm63xx_ack_interrupt, - .config_intr = bcm63xx_config_intr, - .driver = { .owner = THIS_MODULE }, -}; - -/* same phy as above, with just a different OUI */ -static struct phy_driver bcm63xx_2_driver = { - .phy_id = 0x002bdc00, - .phy_id_mask = 0xfffffc00, - .name = "Broadcom BCM63XX (2)", - .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), - .flags = PHY_HAS_INTERRUPT, - .config_init = bcm63xx_config_init, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, - .ack_interrupt = bcm63xx_ack_interrupt, - .config_intr = bcm63xx_config_intr, - .driver = { .owner = THIS_MODULE }, -}; - -static int __init bcm63xx_phy_init(void) -{ - int ret; - - ret = phy_driver_register(&bcm63xx_1_driver); - if (ret) - goto out_63xx_1; - ret = phy_driver_register(&bcm63xx_2_driver); - if (ret) - goto out_63xx_2; - return ret; - -out_63xx_2: - phy_driver_unregister(&bcm63xx_1_driver); -out_63xx_1: - return ret; -} - -static void __exit bcm63xx_phy_exit(void) -{ - phy_driver_unregister(&bcm63xx_1_driver); - phy_driver_unregister(&bcm63xx_2_driver); -} - -module_init(bcm63xx_phy_init); -module_exit(bcm63xx_phy_exit); diff --git a/target/linux/brcm63xx/files/drivers/pcmcia/bcm63xx_pcmcia.c b/target/linux/brcm63xx/files/drivers/pcmcia/bcm63xx_pcmcia.c deleted file mode 100644 index 383e322d0..000000000 --- a/target/linux/brcm63xx/files/drivers/pcmcia/bcm63xx_pcmcia.c +++ /dev/null @@ -1,536 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/ioport.h> -#include <linux/timer.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/gpio.h> - -#include <bcm63xx_regs.h> -#include <bcm63xx_io.h> -#include "bcm63xx_pcmcia.h" - -#define PFX "bcm63xx_pcmcia: " - -#ifdef CONFIG_CARDBUS -/* if cardbus is used, platform device needs reference to actual pci - * device */ -static struct pci_dev *bcm63xx_cb_dev; -#endif - -/* - * read/write helper for pcmcia regs - */ -static inline u32 pcmcia_readl(struct bcm63xx_pcmcia_socket *skt, u32 off) -{ - return bcm_readl(skt->base + off); -} - -static inline void pcmcia_writel(struct bcm63xx_pcmcia_socket *skt, - u32 val, u32 off) -{ - bcm_writel(val, skt->base + off); -} - -/* - * (Re-)Initialise the socket, turning on status interrupts and PCMCIA - * bus. This must wait for power to stabilise so that the card status - * signals report correctly. - */ -static int bcm63xx_pcmcia_sock_init(struct pcmcia_socket *sock) -{ - struct bcm63xx_pcmcia_socket *skt; - skt = sock->driver_data; - return 0; -} - -/* - * Remove power on the socket, disable IRQs from the card. - * Turn off status interrupts, and disable the PCMCIA bus. - */ -static int bcm63xx_pcmcia_suspend(struct pcmcia_socket *sock) -{ - struct bcm63xx_pcmcia_socket *skt; - skt = sock->driver_data; - return 0; -} - -/* - * Implements the set_socket() operation for the in-kernel PCMCIA - * service (formerly SS_SetSocket in Card Services). We more or - * less punt all of this work and let the kernel handle the details - * of power configuration, reset, &c. We also record the value of - * `state' in order to regurgitate it to the PCMCIA core later. - */ -static int bcm63xx_pcmcia_set_socket(struct pcmcia_socket *sock, - socket_state_t *state) -{ - struct bcm63xx_pcmcia_socket *skt; - unsigned long flags; - u32 val; - - skt = sock->driver_data; - - spin_lock_irqsave(&skt->lock, flags); - - /* apply requested socket power */ - /* FIXME: hardware can't do this */ - - /* apply socket reset */ - val = pcmcia_readl(skt, PCMCIA_C1_REG); - if (state->flags & SS_RESET) - val |= PCMCIA_C1_RESET_MASK; - else - val &= ~PCMCIA_C1_RESET_MASK; - - /* reverse reset logic for cardbus card */ - if (skt->card_detected && (skt->card_type & CARD_CARDBUS)) - val ^= PCMCIA_C1_RESET_MASK; - - pcmcia_writel(skt, val, PCMCIA_C1_REG); - - /* keep requested state for event reporting */ - skt->requested_state = *state; - - spin_unlock_irqrestore(&skt->lock, flags); - - return 0; -} - -/* - * identity cardtype from VS[12] input, CD[12] input while only VS2 is - * floating, and CD[12] input while only VS1 is floating - */ -enum { - IN_VS1 = (1 << 0), - IN_VS2 = (1 << 1), - IN_CD1_VS2H = (1 << 2), - IN_CD2_VS2H = (1 << 3), - IN_CD1_VS1H = (1 << 4), - IN_CD2_VS1H = (1 << 5), -}; - -static const u8 vscd_to_cardtype[] = { - - /* VS1 float, VS2 float */ - [IN_VS1 | IN_VS2] = (CARD_PCCARD | CARD_5V), - - /* VS1 grounded, VS2 float */ - [IN_VS2] = (CARD_PCCARD | CARD_5V | CARD_3V), - - /* VS1 grounded, VS2 grounded */ - [0] = (CARD_PCCARD | CARD_5V | CARD_3V | CARD_XV), - - /* VS1 tied to CD1, VS2 float */ - [IN_VS1 | IN_VS2 | IN_CD1_VS1H] = (CARD_CARDBUS | CARD_3V), - - /* VS1 grounded, VS2 tied to CD2 */ - [IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V | CARD_XV), - - /* VS1 tied to CD2, VS2 grounded */ - [IN_VS1 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_3V | CARD_XV | CARD_YV), - - /* VS1 float, VS2 grounded */ - [IN_VS1] = (CARD_PCCARD | CARD_XV), - - /* VS1 float, VS2 tied to CD2 */ - [IN_VS1 | IN_VS2 | IN_CD2_VS2H] = (CARD_CARDBUS | CARD_3V), - - /* VS1 float, VS2 tied to CD1 */ - [IN_VS1 | IN_VS2 | IN_CD1_VS2H] = (CARD_CARDBUS | CARD_XV | CARD_YV), - - /* VS1 tied to CD2, VS2 float */ - [IN_VS1 | IN_VS2 | IN_CD2_VS1H] = (CARD_CARDBUS | CARD_YV), - - /* VS2 grounded, VS1 is tied to CD1, CD2 is grounded */ - [IN_VS1 | IN_CD1_VS1H] = 0, /* ignore cardbay */ -}; - -/* - * poll hardware to check card insertion status - */ -static unsigned int __get_socket_status(struct bcm63xx_pcmcia_socket *skt) -{ - unsigned int stat; - u32 val; - - stat = 0; - - /* check CD for card presence */ - val = pcmcia_readl(skt, PCMCIA_C1_REG); - - if (!(val & PCMCIA_C1_CD1_MASK) && !(val & PCMCIA_C1_CD2_MASK)) - stat |= SS_DETECT; - - /* if new insertion, detect cardtype */ - if ((stat & SS_DETECT) && !skt->card_detected) { - unsigned int stat = 0; - - /* float VS1, float VS2 */ - val |= PCMCIA_C1_VS1OE_MASK; - val |= PCMCIA_C1_VS2OE_MASK; - pcmcia_writel(skt, val, PCMCIA_C1_REG); - - /* wait for output to stabilize and read VS[12] */ - udelay(10); - val = pcmcia_readl(skt, PCMCIA_C1_REG); - stat |= (val & PCMCIA_C1_VS1_MASK) ? IN_VS1 : 0; - stat |= (val & PCMCIA_C1_VS2_MASK) ? IN_VS2 : 0; - - /* drive VS1 low, float VS2 */ - val &= ~PCMCIA_C1_VS1OE_MASK; - val |= PCMCIA_C1_VS2OE_MASK; - pcmcia_writel(skt, val, PCMCIA_C1_REG); - - /* wait for output to stabilize and read CD[12] */ - udelay(10); - val = pcmcia_readl(skt, PCMCIA_C1_REG); - stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS2H : 0; - stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS2H : 0; - - /* float VS1, drive VS2 low */ - val |= PCMCIA_C1_VS1OE_MASK; - val &= ~PCMCIA_C1_VS2OE_MASK; - pcmcia_writel(skt, val, PCMCIA_C1_REG); - - /* wait for output to stabilize and read CD[12] */ - udelay(10); - val = pcmcia_readl(skt, PCMCIA_C1_REG); - stat |= (val & PCMCIA_C1_CD1_MASK) ? IN_CD1_VS1H : 0; - stat |= (val & PCMCIA_C1_CD2_MASK) ? IN_CD2_VS1H : 0; - - /* guess cardtype from all this */ - skt->card_type = vscd_to_cardtype[stat]; - if (!skt->card_type) - printk(KERN_ERR PFX "unsupported card type\n"); - - /* drive both VS pin to 0 again */ - val &= ~(PCMCIA_C1_VS1OE_MASK | PCMCIA_C1_VS2OE_MASK); - - /* enable correct logic */ - val &= ~(PCMCIA_C1_EN_PCMCIA_MASK | PCMCIA_C1_EN_CARDBUS_MASK); - if (skt->card_type & CARD_PCCARD) - val |= PCMCIA_C1_EN_PCMCIA_MASK; - else - val |= PCMCIA_C1_EN_CARDBUS_MASK; - - pcmcia_writel(skt, val, PCMCIA_C1_REG); - } - skt->card_detected = (stat & SS_DETECT) ? 1 : 0; - - /* report card type/voltage */ - if (skt->card_type & CARD_CARDBUS) - stat |= SS_CARDBUS; - if (skt->card_type & CARD_3V) - stat |= SS_3VCARD; - if (skt->card_type & CARD_XV) - stat |= SS_XVCARD; - stat |= SS_POWERON; - - if (gpio_get_value(skt->pd->ready_gpio)) - stat |= SS_READY; - - return stat; -} - -/* - * core request to get current socket status - */ -static int bcm63xx_pcmcia_get_status(struct pcmcia_socket *sock, - unsigned int *status) -{ - struct bcm63xx_pcmcia_socket *skt; - - skt = sock->driver_data; - - spin_lock_bh(&skt->lock); - *status = __get_socket_status(skt); - spin_unlock_bh(&skt->lock); - - return 0; -} - -/* - * socket polling timer callback - */ -static void bcm63xx_pcmcia_poll(unsigned long data) -{ - struct bcm63xx_pcmcia_socket *skt; - unsigned int stat, events; - - skt = (struct bcm63xx_pcmcia_socket *)data; - - spin_lock_bh(&skt->lock); - - stat = __get_socket_status(skt); - - /* keep only changed bits, and mask with required one from the - * core */ - events = (stat ^ skt->old_status) & skt->requested_state.csc_mask; - skt->old_status = stat; - spin_unlock_bh(&skt->lock); - - if (events) - pcmcia_parse_events(&skt->socket, events); - - mod_timer(&skt->timer, - jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE)); -} - -static int bcm63xx_pcmcia_set_io_map(struct pcmcia_socket *sock, - struct pccard_io_map *map) -{ - /* this doesn't seem to be called by pcmcia layer if static - * mapping is used */ - return 0; -} - -static int bcm63xx_pcmcia_set_mem_map(struct pcmcia_socket *sock, - struct pccard_mem_map *map) -{ - struct bcm63xx_pcmcia_socket *skt; - struct resource *res; - - skt = sock->driver_data; - if (map->flags & MAP_ATTRIB) - res = skt->attr_res; - else - res = skt->common_res; - - map->static_start = res->start + map->card_start; - return 0; -} - -static struct pccard_operations bcm63xx_pcmcia_operations = { - .init = bcm63xx_pcmcia_sock_init, - .suspend = bcm63xx_pcmcia_suspend, - .get_status = bcm63xx_pcmcia_get_status, - .set_socket = bcm63xx_pcmcia_set_socket, - .set_io_map = bcm63xx_pcmcia_set_io_map, - .set_mem_map = bcm63xx_pcmcia_set_mem_map, -}; - -/* - * register pcmcia socket to core - */ -static int bcm63xx_drv_pcmcia_probe(struct platform_device *pdev) -{ - struct bcm63xx_pcmcia_socket *skt; - struct pcmcia_socket *sock; - struct resource *res, *irq_res; - unsigned int regmem_size = 0, iomem_size = 0; - u32 val; - int ret; - - skt = kzalloc(sizeof(*skt), GFP_KERNEL); - if (!skt) - return -ENOMEM; - spin_lock_init(&skt->lock); - sock = &skt->socket; - sock->driver_data = skt; - - /* make sure we have all resources we need */ - skt->common_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - skt->attr_res = platform_get_resource(pdev, IORESOURCE_MEM, 2); - irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - skt->pd = pdev->dev.platform_data; - if (!skt->common_res || !skt->attr_res || !irq_res || !skt->pd) { - ret = -EINVAL; - goto err; - } - - /* remap pcmcia registers */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - regmem_size = res->end - res->start + 1; - if (!request_mem_region(res->start, regmem_size, "bcm63xx_pcmcia")) { - ret = -EINVAL; - goto err; - } - skt->reg_res = res; - - skt->base = ioremap(res->start, regmem_size); - if (!skt->base) { - ret = -ENOMEM; - goto err; - } - - /* remap io registers */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 3); - iomem_size = res->end - res->start + 1; - skt->io_base = ioremap(res->start, iomem_size); - if (!skt->io_base) { - ret = -ENOMEM; - goto err; - } - - /* resources are static */ - sock->resource_ops = &pccard_static_ops; - sock->ops = &bcm63xx_pcmcia_operations; - sock->owner = THIS_MODULE; - sock->dev.parent = &pdev->dev; - sock->features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; - sock->io_offset = (unsigned long)skt->io_base; - sock->pci_irq = irq_res->start; - -#ifdef CONFIG_CARDBUS - sock->cb_dev = bcm63xx_cb_dev; - if (bcm63xx_cb_dev) - sock->features |= SS_CAP_CARDBUS; -#endif - - /* assume common & attribute memory have the same size */ - sock->map_size = skt->common_res->end - skt->common_res->start + 1; - - /* initialize polling timer */ - setup_timer(&skt->timer, bcm63xx_pcmcia_poll, (unsigned long)skt); - - /* initialize pcmcia control register, drive VS[12] to 0, - * leave CB IDSEL to the old value since it is set by the PCI - * layer */ - val = pcmcia_readl(skt, PCMCIA_C1_REG); - val &= PCMCIA_C1_CBIDSEL_MASK; - val |= PCMCIA_C1_EN_PCMCIA_GPIO_MASK; - pcmcia_writel(skt, val, PCMCIA_C1_REG); - - /* FIXME set correct pcmcia timings */ - val = PCMCIA_C2_DATA16_MASK; - val |= 10 << PCMCIA_C2_RWCOUNT_SHIFT; - val |= 6 << PCMCIA_C2_INACTIVE_SHIFT; - val |= 3 << PCMCIA_C2_SETUP_SHIFT; - val |= 3 << PCMCIA_C2_HOLD_SHIFT; - pcmcia_writel(skt, val, PCMCIA_C2_REG); - - /* request and setup ready gpio */ - ret = gpio_request(skt->pd->ready_gpio, "bcm63xx_pcmcia"); - if (ret < 0) - goto err; - - ret = gpio_direction_input(skt->pd->ready_gpio); - if (ret < 0) - goto err_gpio; - - ret = pcmcia_register_socket(sock); - if (ret) - goto err_gpio; - - /* start polling socket */ - mod_timer(&skt->timer, - jiffies + msecs_to_jiffies(BCM63XX_PCMCIA_POLL_RATE)); - - platform_set_drvdata(pdev, skt); - return 0; - -err_gpio: - gpio_free(skt->pd->ready_gpio); - -err: - if (skt->io_base) - iounmap(skt->io_base); - if (skt->base) - iounmap(skt->base); - if (skt->reg_res) - release_mem_region(skt->reg_res->start, regmem_size); - kfree(skt); - return ret; -} - -static int bcm63xx_drv_pcmcia_remove(struct platform_device *pdev) -{ - struct bcm63xx_pcmcia_socket *skt; - struct resource *res; - - skt = platform_get_drvdata(pdev); - del_timer_sync(&skt->timer); - iounmap(skt->base); - iounmap(skt->io_base); - res = skt->reg_res; - release_mem_region(res->start, res->end - res->start + 1); - gpio_free(skt->pd->ready_gpio); - platform_set_drvdata(pdev, NULL); - kfree(skt); - return 0; -} - -struct platform_driver bcm63xx_pcmcia_driver = { - .probe = bcm63xx_drv_pcmcia_probe, - .remove = __devexit_p(bcm63xx_drv_pcmcia_remove), - .driver = { - .name = "bcm63xx_pcmcia", - .owner = THIS_MODULE, - }, -}; - -#ifdef CONFIG_CARDBUS -static int __devinit bcm63xx_cb_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - /* keep pci device */ - bcm63xx_cb_dev = dev; - return platform_driver_register(&bcm63xx_pcmcia_driver); -} - -static void __devexit bcm63xx_cb_exit(struct pci_dev *dev) -{ - platform_driver_unregister(&bcm63xx_pcmcia_driver); - bcm63xx_cb_dev = NULL; -} - -static struct pci_device_id bcm63xx_cb_table[] = { - { - .vendor = PCI_VENDOR_ID_BROADCOM, - .device = PCI_ANY_ID, - .subvendor = PCI_VENDOR_ID_BROADCOM, - .subdevice = PCI_ANY_ID, - .class = PCI_CLASS_BRIDGE_CARDBUS << 8, - .class_mask = ~0, - }, - {} -}; - -MODULE_DEVICE_TABLE(pci, bcm63xx_cb_table); - -static struct pci_driver bcm63xx_cardbus_driver = { - .name = "yenta_cardbus", - .id_table = bcm63xx_cb_table, - .probe = bcm63xx_cb_probe, - .remove = __devexit_p(bcm63xx_cb_exit), -}; -#endif - -/* - * if cardbus support is enabled, register our platform device after - * our fake cardbus bridge has been registered - */ -static int __init bcm63xx_pcmcia_init(void) -{ -#ifdef CONFIG_CARDBUS - return pci_register_driver(&bcm63xx_cardbus_driver); -#else - return platform_driver_register(&bcm63xx_pcmcia_driver); -#endif -} - -static void __exit bcm63xx_pcmcia_exit(void) -{ -#ifdef CONFIG_CARDBUS - return pci_unregister_driver(&bcm63xx_cardbus_driver); -#else - platform_driver_unregister(&bcm63xx_pcmcia_driver); -#endif -} - -module_init(bcm63xx_pcmcia_init); -module_exit(bcm63xx_pcmcia_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>"); -MODULE_DESCRIPTION("Linux PCMCIA Card Services: bcm63xx Socket Controller"); diff --git a/target/linux/brcm63xx/files/drivers/pcmcia/bcm63xx_pcmcia.h b/target/linux/brcm63xx/files/drivers/pcmcia/bcm63xx_pcmcia.h deleted file mode 100644 index 85de86696..000000000 --- a/target/linux/brcm63xx/files/drivers/pcmcia/bcm63xx_pcmcia.h +++ /dev/null @@ -1,65 +0,0 @@ -#ifndef BCM63XX_PCMCIA_H_ -#define BCM63XX_PCMCIA_H_ - -#include <linux/types.h> -#include <linux/timer.h> -#include <pcmcia/ss.h> -#include <bcm63xx_dev_pcmcia.h> - -/* socket polling rate in ms */ -#define BCM63XX_PCMCIA_POLL_RATE 500 - -enum { - CARD_CARDBUS = (1 << 0), - - CARD_PCCARD = (1 << 1), - - CARD_5V = (1 << 2), - - CARD_3V = (1 << 3), - - CARD_XV = (1 << 4), - - CARD_YV = (1 << 5), -}; - -struct bcm63xx_pcmcia_socket { - struct pcmcia_socket socket; - - /* platform specific data */ - struct bcm63xx_pcmcia_platform_data *pd; - - /* all regs access are protected by this spinlock */ - spinlock_t lock; - - /* pcmcia registers resource */ - struct resource *reg_res; - - /* base remapped address of registers */ - void __iomem *base; - - /* whether a card is detected at the moment */ - int card_detected; - - /* type of detected card (mask of above enum) */ - u8 card_type; - - /* keep last socket status to implement event reporting */ - unsigned int old_status; - - /* backup of requested socket state */ - socket_state_t requested_state; - - /* timer used for socket status polling */ - struct timer_list timer; - - /* attribute/common memory resources */ - struct resource *attr_res; - struct resource *common_res; - struct resource *io_res; - - /* base address of io memory */ - void __iomem *io_base; -}; - -#endif /* BCM63XX_PCMCIA_H_ */ diff --git a/target/linux/brcm63xx/files/drivers/serial/bcm63xx_uart.c b/target/linux/brcm63xx/files/drivers/serial/bcm63xx_uart.c deleted file mode 100644 index 606f4d68c..000000000 --- a/target/linux/brcm63xx/files/drivers/serial/bcm63xx_uart.c +++ /dev/null @@ -1,890 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Derived from many drivers using generic_serial interface. - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - * - * Serial driver for BCM63xx integrated UART. - * - * Hardware flow control was _not_ tested since I only have RX/TX on - * my board. - */ - -#if defined(CONFIG_SERIAL_BCM63XX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) -#define SUPPORT_SYSRQ -#endif - -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/console.h> -#include <linux/clk.h> -#include <linux/tty.h> -#include <linux/tty_flip.h> -#include <linux/sysrq.h> -#include <linux/serial.h> -#include <linux/serial_core.h> - -#include <bcm63xx_clk.h> -#include <bcm63xx_irq.h> -#include <bcm63xx_regs.h> -#include <bcm63xx_io.h> - -#define BCM63XX_NR_UARTS 1 - -static struct uart_port ports[BCM63XX_NR_UARTS]; - -/* - * rx interrupt mask / stat - * - * mask: - * - rx fifo full - * - rx fifo above threshold - * - rx fifo not empty for too long - */ -#define UART_RX_INT_MASK (UART_IR_MASK(UART_IR_RXOVER) | \ - UART_IR_MASK(UART_IR_RXTHRESH) | \ - UART_IR_MASK(UART_IR_RXTIMEOUT)) - -#define UART_RX_INT_STAT (UART_IR_STAT(UART_IR_RXOVER) | \ - UART_IR_STAT(UART_IR_RXTHRESH) | \ - UART_IR_STAT(UART_IR_RXTIMEOUT)) - -/* - * tx interrupt mask / stat - * - * mask: - * - tx fifo empty - * - tx fifo below threshold - */ -#define UART_TX_INT_MASK (UART_IR_MASK(UART_IR_TXEMPTY) | \ - UART_IR_MASK(UART_IR_TXTRESH)) - -#define UART_TX_INT_STAT (UART_IR_STAT(UART_IR_TXEMPTY) | \ - UART_IR_STAT(UART_IR_TXTRESH)) - -/* - * external input interrupt - * - * mask: any edge on CTS, DCD - */ -#define UART_EXTINP_INT_MASK (UART_EXTINP_IRMASK(UART_EXTINP_IR_CTS) | \ - UART_EXTINP_IRMASK(UART_EXTINP_IR_DCD)) - -/* - * handy uart register accessor - */ -static inline unsigned int bcm_uart_readl(struct uart_port *port, - unsigned int offset) -{ - return bcm_readl(port->membase + offset); -} - -static inline void bcm_uart_writel(struct uart_port *port, - unsigned int value, unsigned int offset) -{ - bcm_writel(value, port->membase + offset); -} - -/* - * serial core request to check if uart tx fifo is empty - */ -static unsigned int bcm_uart_tx_empty(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_IR_REG); - return (val & UART_IR_STAT(UART_IR_TXEMPTY)) ? 1 : 0; -} - -/* - * serial core request to set RTS and DTR pin state and loopback mode - */ -static void bcm_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_MCTL_REG); - val &= ~(UART_MCTL_DTR_MASK | UART_MCTL_RTS_MASK); - /* invert of written value is reflected on the pin */ - if (!(mctrl & TIOCM_DTR)) - val |= UART_MCTL_DTR_MASK; - if (!(mctrl & TIOCM_RTS)) - val |= UART_MCTL_RTS_MASK; - bcm_uart_writel(port, val, UART_MCTL_REG); - - val = bcm_uart_readl(port, UART_CTL_REG); - if (mctrl & TIOCM_LOOP) - val |= UART_CTL_LOOPBACK_MASK; - else - val &= ~UART_CTL_LOOPBACK_MASK; - bcm_uart_writel(port, val, UART_CTL_REG); -} - -/* - * serial core request to return RI, CTS, DCD and DSR pin state - */ -static unsigned int bcm_uart_get_mctrl(struct uart_port *port) -{ - unsigned int val, mctrl; - - mctrl = 0; - val = bcm_uart_readl(port, UART_EXTINP_REG); - if (val & UART_EXTINP_RI_MASK) - mctrl |= TIOCM_RI; - if (val & UART_EXTINP_CTS_MASK) - mctrl |= TIOCM_CTS; - if (val & UART_EXTINP_DCD_MASK) - mctrl |= TIOCM_CD; - if (val & UART_EXTINP_DSR_MASK) - mctrl |= TIOCM_DSR; - return mctrl; -} - -/* - * serial core request to disable tx ASAP (used for flow control) - */ -static void bcm_uart_stop_tx(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_CTL_REG); - val &= ~(UART_CTL_TXEN_MASK); - bcm_uart_writel(port, val, UART_CTL_REG); - - val = bcm_uart_readl(port, UART_IR_REG); - val &= ~UART_TX_INT_MASK; - bcm_uart_writel(port, val, UART_IR_REG); -} - -/* - * serial core request to (re)enable tx - */ -static void bcm_uart_start_tx(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_IR_REG); - val |= UART_TX_INT_MASK; - bcm_uart_writel(port, val, UART_IR_REG); - - val = bcm_uart_readl(port, UART_CTL_REG); - val |= UART_CTL_TXEN_MASK; - bcm_uart_writel(port, val, UART_CTL_REG); -} - -/* - * serial core request to stop rx, called before port shutdown - */ -static void bcm_uart_stop_rx(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_IR_REG); - val &= ~UART_RX_INT_MASK; - bcm_uart_writel(port, val, UART_IR_REG); -} - -/* - * serial core request to enable modem status interrupt reporting - */ -static void bcm_uart_enable_ms(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_IR_REG); - val |= UART_IR_MASK(UART_IR_EXTIP); - bcm_uart_writel(port, val, UART_IR_REG); -} - -/* - * serial core request to start/stop emitting break char - */ -static void bcm_uart_break_ctl(struct uart_port *port, int ctl) -{ - unsigned long flags; - unsigned int val; - - spin_lock_irqsave(&port->lock, flags); - - val = bcm_uart_readl(port, UART_CTL_REG); - if (ctl) - val |= UART_CTL_XMITBRK_MASK; - else - val &= ~UART_CTL_XMITBRK_MASK; - bcm_uart_writel(port, val, UART_CTL_REG); - - spin_unlock_irqrestore(&port->lock, flags); -} - -/* - * return port type in string format - */ -static const char *bcm_uart_type(struct uart_port *port) -{ - return (port->type == PORT_BCM63XX) ? "bcm63xx_uart" : NULL; -} - -/* - * read all chars in rx fifo and send them to core - */ -static void bcm_uart_do_rx(struct uart_port *port) -{ - struct tty_struct *tty; - unsigned int max_count; - - /* limit number of char read in interrupt, should not be - * higher than fifo size anyway since we're much faster than - * serial port */ - max_count = 32; - tty = port->info->port.tty; - do { - unsigned int iestat, c, cstat; - char flag; - - /* get overrun/fifo empty information from ier - * register */ - iestat = bcm_uart_readl(port, UART_IR_REG); - if (!(iestat & UART_IR_STAT(UART_IR_RXNOTEMPTY))) - break; - - cstat = c = bcm_uart_readl(port, UART_FIFO_REG); - port->icount.rx++; - flag = TTY_NORMAL; - c &= 0xff; - - if (unlikely((cstat & UART_FIFO_ANYERR_MASK))) { - /* do stats first */ - if (cstat & UART_FIFO_BRKDET_MASK) { - port->icount.brk++; - if (uart_handle_break(port)) - continue; - } - - if (cstat & UART_FIFO_PARERR_MASK) - port->icount.parity++; - if (cstat & UART_FIFO_FRAMEERR_MASK) - port->icount.frame++; - - /* update flag wrt read_status_mask */ - cstat &= port->read_status_mask; - if (cstat & UART_FIFO_BRKDET_MASK) - flag = TTY_BREAK; - if (cstat & UART_FIFO_FRAMEERR_MASK) - flag = TTY_FRAME; - if (cstat & UART_FIFO_PARERR_MASK) - flag = TTY_PARITY; - } - - if (uart_handle_sysrq_char(port, c)) - continue; - - if (unlikely(iestat & UART_IR_STAT(UART_IR_RXOVER))) { - port->icount.overrun++; - tty_insert_flip_char(tty, 0, TTY_OVERRUN); - } - - if ((cstat & port->ignore_status_mask) == 0) - tty_insert_flip_char(tty, c, flag); - - } while (--max_count); - - tty_flip_buffer_push(tty); -} - -/* - * fill tx fifo with chars to send, stop when fifo is about to be full - * or when all chars have been sent. - */ -static void bcm_uart_do_tx(struct uart_port *port) -{ - struct circ_buf *xmit; - unsigned int val, max_count; - - if (port->x_char) { - bcm_uart_writel(port, port->x_char, UART_FIFO_REG); - port->icount.tx++; - port->x_char = 0; - return; - } - - if (uart_tx_stopped(port)) { - bcm_uart_stop_tx(port); - return; - } - - xmit = &port->info->xmit; - if (uart_circ_empty(xmit)) - goto txq_empty; - - val = bcm_uart_readl(port, UART_MCTL_REG); - val = (val & UART_MCTL_TXFIFOFILL_MASK) >> UART_MCTL_TXFIFOFILL_SHIFT; - max_count = port->fifosize - val; - - while (max_count--) { - unsigned int c; - - c = xmit->buf[xmit->tail]; - bcm_uart_writel(port, c, UART_FIFO_REG); - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - port->icount.tx++; - if (uart_circ_empty(xmit)) - break; - } - - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) - uart_write_wakeup(port); - - if (uart_circ_empty(xmit)) - goto txq_empty; - return; - -txq_empty: - /* nothing to send, disable transmit interrupt */ - val = bcm_uart_readl(port, UART_IR_REG); - val &= ~UART_TX_INT_MASK; - bcm_uart_writel(port, val, UART_IR_REG); - return; -} - -/* - * process uart interrupt - */ -static irqreturn_t bcm_uart_interrupt(int irq, void *dev_id) -{ - struct uart_port *port; - unsigned int irqstat; - - port = dev_id; - spin_lock(&port->lock); - - irqstat = bcm_uart_readl(port, UART_IR_REG); - if (irqstat & UART_RX_INT_STAT) - bcm_uart_do_rx(port); - - if (irqstat & UART_TX_INT_STAT) - bcm_uart_do_tx(port); - - if (irqstat & UART_IR_MASK(UART_IR_EXTIP)) { - unsigned int estat; - - estat = bcm_uart_readl(port, UART_EXTINP_REG); - if (estat & UART_EXTINP_IRSTAT(UART_EXTINP_IR_CTS)) - uart_handle_cts_change(port, - estat & UART_EXTINP_CTS_MASK); - if (estat & UART_EXTINP_IRSTAT(UART_EXTINP_IR_DCD)) - uart_handle_dcd_change(port, - estat & UART_EXTINP_DCD_MASK); - } - - spin_unlock(&port->lock); - return IRQ_HANDLED; -} - -/* - * enable rx & tx operation on uart - */ -static void bcm_uart_enable(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_CTL_REG); - val |= (UART_CTL_BRGEN_MASK | UART_CTL_TXEN_MASK | UART_CTL_RXEN_MASK); - bcm_uart_writel(port, val, UART_CTL_REG); -} - -/* - * disable rx & tx operation on uart - */ -static void bcm_uart_disable(struct uart_port *port) -{ - unsigned int val; - - val = bcm_uart_readl(port, UART_CTL_REG); - val &= ~(UART_CTL_BRGEN_MASK | UART_CTL_TXEN_MASK | - UART_CTL_RXEN_MASK); - bcm_uart_writel(port, val, UART_CTL_REG); -} - -/* - * clear all unread data in rx fifo and unsent data in tx fifo - */ -static void bcm_uart_flush(struct uart_port *port) -{ - unsigned int val; - - /* empty rx and tx fifo */ - val = bcm_uart_readl(port, UART_CTL_REG); - val |= UART_CTL_RSTRXFIFO_MASK | UART_CTL_RSTTXFIFO_MASK; - bcm_uart_writel(port, val, UART_CTL_REG); - - /* read any pending char to make sure all irq status are - * cleared */ - (void)bcm_uart_readl(port, UART_FIFO_REG); -} - -/* - * serial core request to initialize uart and start rx operation - */ -static int bcm_uart_startup(struct uart_port *port) -{ - unsigned int val; - int ret; - - /* mask all irq and flush port */ - bcm_uart_disable(port); - bcm_uart_writel(port, 0, UART_IR_REG); - bcm_uart_flush(port); - - /* clear any pending external input interrupt */ - (void)bcm_uart_readl(port, UART_EXTINP_REG); - - /* set rx/tx fifo thresh to fifo half size */ - val = bcm_uart_readl(port, UART_MCTL_REG); - val &= ~(UART_MCTL_RXFIFOTHRESH_MASK | UART_MCTL_TXFIFOTHRESH_MASK); - val |= (port->fifosize / 2) << UART_MCTL_RXFIFOTHRESH_SHIFT; - val |= (port->fifosize / 2) << UART_MCTL_TXFIFOTHRESH_SHIFT; - bcm_uart_writel(port, val, UART_MCTL_REG); - - /* set rx fifo timeout to 1 char time */ - val = bcm_uart_readl(port, UART_CTL_REG); - val &= ~UART_CTL_RXTMOUTCNT_MASK; - val |= 1 << UART_CTL_RXTMOUTCNT_SHIFT; - bcm_uart_writel(port, val, UART_CTL_REG); - - /* report any edge on dcd and cts */ - val = UART_EXTINP_INT_MASK; - val |= UART_EXTINP_DCD_NOSENSE_MASK; - val |= UART_EXTINP_CTS_NOSENSE_MASK; - bcm_uart_writel(port, val, UART_EXTINP_REG); - - /* register irq and enable rx interrupts */ - ret = request_irq(port->irq, bcm_uart_interrupt, 0, - bcm_uart_type(port), port); - if (ret) - return ret; - bcm_uart_writel(port, UART_RX_INT_MASK, UART_IR_REG); - bcm_uart_enable(port); - return 0; -} - -/* - * serial core request to flush & disable uart - */ -static void bcm_uart_shutdown(struct uart_port *port) -{ - unsigned long flags; - - spin_lock_irqsave(&port->lock, flags); - bcm_uart_writel(port, 0, UART_IR_REG); - spin_unlock_irqrestore(&port->lock, flags); - - bcm_uart_disable(port); - bcm_uart_flush(port); - free_irq(port->irq, port); -} - -/* - * serial core request to change current uart setting - */ -static void bcm_uart_set_termios(struct uart_port *port, - struct ktermios *new, - struct ktermios *old) -{ - unsigned int ctl, baud, quot, ier; - unsigned long flags; - - spin_lock_irqsave(&port->lock, flags); - - /* disable uart while changing speed */ - bcm_uart_disable(port); - bcm_uart_flush(port); - - /* update Control register */ - ctl = bcm_uart_readl(port, UART_CTL_REG); - ctl &= ~UART_CTL_BITSPERSYM_MASK; - - switch (new->c_cflag & CSIZE) { - case CS5: - ctl |= (0 << UART_CTL_BITSPERSYM_SHIFT); - break; - case CS6: - ctl |= (1 << UART_CTL_BITSPERSYM_SHIFT); - break; - case CS7: - ctl |= (2 << UART_CTL_BITSPERSYM_SHIFT); - break; - default: - ctl |= (3 << UART_CTL_BITSPERSYM_SHIFT); - break; - } - - ctl &= ~UART_CTL_STOPBITS_MASK; - if (new->c_cflag & CSTOPB) - ctl |= UART_CTL_STOPBITS_2; - else - ctl |= UART_CTL_STOPBITS_1; - - ctl &= ~(UART_CTL_RXPAREN_MASK | UART_CTL_TXPAREN_MASK); - if (new->c_cflag & PARENB) - ctl |= (UART_CTL_RXPAREN_MASK | UART_CTL_TXPAREN_MASK); - ctl &= ~(UART_CTL_RXPAREVEN_MASK | UART_CTL_TXPAREVEN_MASK); - if (new->c_cflag & PARODD) - ctl |= (UART_CTL_RXPAREVEN_MASK | UART_CTL_TXPAREVEN_MASK); - bcm_uart_writel(port, ctl, UART_CTL_REG); - - /* update Baudword register */ - baud = uart_get_baud_rate(port, new, old, 0, port->uartclk / 16); - quot = uart_get_divisor(port, baud) - 1; - bcm_uart_writel(port, quot, UART_BAUD_REG); - - /* update Interrupt register */ - ier = bcm_uart_readl(port, UART_IR_REG); - - ier &= ~UART_IR_MASK(UART_IR_EXTIP); - if (UART_ENABLE_MS(port, new->c_cflag)) - ier |= UART_IR_MASK(UART_IR_EXTIP); - - bcm_uart_writel(port, ier, UART_IR_REG); - - /* update read/ignore mask */ - port->read_status_mask = UART_FIFO_VALID_MASK; - if (new->c_iflag & INPCK) { - port->read_status_mask |= UART_FIFO_FRAMEERR_MASK; - port->read_status_mask |= UART_FIFO_PARERR_MASK; - } - if (new->c_iflag & (BRKINT)) - port->read_status_mask |= UART_FIFO_BRKDET_MASK; - - port->ignore_status_mask = 0; - if (new->c_iflag & IGNPAR) - port->ignore_status_mask |= UART_FIFO_PARERR_MASK; - if (new->c_iflag & IGNBRK) - port->ignore_status_mask |= UART_FIFO_BRKDET_MASK; - if (!(new->c_cflag & CREAD)) - port->ignore_status_mask |= UART_FIFO_VALID_MASK; - - uart_update_timeout(port, new->c_cflag, baud); - bcm_uart_enable(port); - spin_unlock_irqrestore(&port->lock, flags); -} - -/* - * serial core request to claim uart iomem - */ -static int bcm_uart_request_port(struct uart_port *port) -{ - unsigned int size; - - size = RSET_UART_SIZE; - if (!request_mem_region(port->mapbase, size, "bcm63xx")) { - dev_err(port->dev, "Memory region busy\n"); - return -EBUSY; - } - - port->membase = ioremap(port->mapbase, size); - if (!port->membase) { - dev_err(port->dev, "Unable to map registers\n"); - release_mem_region(port->mapbase, size); - return -EBUSY; - } - return 0; -} - -/* - * serial core request to release uart iomem - */ -static void bcm_uart_release_port(struct uart_port *port) -{ - release_mem_region(port->mapbase, RSET_UART_SIZE); - iounmap(port->membase); -} - -/* - * serial core request to do any port required autoconfiguration - */ -static void bcm_uart_config_port(struct uart_port *port, int flags) -{ - if (flags & UART_CONFIG_TYPE) { - if (bcm_uart_request_port(port)) - return; - port->type = PORT_BCM63XX; - } -} - -/* - * serial core request to check that port information in serinfo are - * suitable - */ -static int bcm_uart_verify_port(struct uart_port *port, - struct serial_struct *serinfo) -{ - if (port->type != PORT_BCM63XX) - return -EINVAL; - if (port->irq != serinfo->irq) - return -EINVAL; - if (port->iotype != serinfo->io_type) - return -EINVAL; - if (port->mapbase != (unsigned long)serinfo->iomem_base) - return -EINVAL; - return 0; -} - -/* serial core callbacks */ -static struct uart_ops bcm_uart_ops = { - .tx_empty = bcm_uart_tx_empty, - .get_mctrl = bcm_uart_get_mctrl, - .set_mctrl = bcm_uart_set_mctrl, - .start_tx = bcm_uart_start_tx, - .stop_tx = bcm_uart_stop_tx, - .stop_rx = bcm_uart_stop_rx, - .enable_ms = bcm_uart_enable_ms, - .break_ctl = bcm_uart_break_ctl, - .startup = bcm_uart_startup, - .shutdown = bcm_uart_shutdown, - .set_termios = bcm_uart_set_termios, - .type = bcm_uart_type, - .release_port = bcm_uart_release_port, - .request_port = bcm_uart_request_port, - .config_port = bcm_uart_config_port, - .verify_port = bcm_uart_verify_port, -}; - - - -#ifdef CONFIG_SERIAL_BCM63XX_CONSOLE -static inline void wait_for_xmitr(struct uart_port *port) -{ - unsigned int tmout; - - /* Wait up to 10ms for the character(s) to be sent. */ - tmout = 10000; - while (--tmout) { - unsigned int val; - - val = bcm_uart_readl(port, UART_IR_REG); - if (val & UART_IR_STAT(UART_IR_TXEMPTY)) - break; - udelay(1); - } - - /* Wait up to 1s for flow control if necessary */ - if (port->flags & UPF_CONS_FLOW) { - tmout = 1000000; - while (--tmout) { - unsigned int val; - - val = bcm_uart_readl(port, UART_EXTINP_REG); - if (val & UART_EXTINP_CTS_MASK) - break; - udelay(1); - } - } -} - -/* - * output given char - */ -static void bcm_console_putchar(struct uart_port *port, int ch) -{ - wait_for_xmitr(port); - bcm_uart_writel(port, ch, UART_FIFO_REG); -} - -/* - * console core request to output given string - */ -static void bcm_console_write(struct console *co, const char *s, - unsigned int count) -{ - struct uart_port *port; - unsigned long flags; - int locked; - - port = &ports[co->index]; - - local_irq_save(flags); - if (port->sysrq) { - /* bcm_uart_interrupt() already took the lock */ - locked = 0; - } else if (oops_in_progress) { - locked = spin_trylock(&port->lock); - } else { - spin_lock(&port->lock); - locked = 1; - } - - /* call helper to deal with \r\n */ - uart_console_write(port, s, count, bcm_console_putchar); - - /* and wait for char to be transmitted */ - wait_for_xmitr(port); - - if (locked) - spin_unlock(&port->lock); - local_irq_restore(flags); -} - -/* - * console core request to setup given console, find matching uart - * port and setup it. - */ -static int bcm_console_setup(struct console *co, char *options) -{ - struct uart_port *port; - int baud = 9600; - int bits = 8; - int parity = 'n'; - int flow = 'n'; - - if (co->index < 0 || co->index >= BCM63XX_NR_UARTS) - return -EINVAL; - port = &ports[co->index]; - if (!port->membase) - return -ENODEV; - if (options) - uart_parse_options(options, &baud, &parity, &bits, &flow); - - return uart_set_options(port, co, baud, parity, bits, flow); -} - -static struct uart_driver bcm_uart_driver; - -static struct console bcm63xx_console = { - .name = "ttyS", - .write = bcm_console_write, - .device = uart_console_device, - .setup = bcm_console_setup, - .flags = CON_PRINTBUFFER, - .index = -1, - .data = &bcm_uart_driver, -}; - -static int __init bcm63xx_console_init(void) -{ - register_console(&bcm63xx_console); - return 0; -} - -console_initcall(bcm63xx_console_init); - -#define BCM63XX_CONSOLE &bcm63xx_console -#else -#define BCM63XX_CONSOLE NULL -#endif /* CONFIG_SERIAL_BCM63XX_CONSOLE */ - -static struct uart_driver bcm_uart_driver = { - .owner = THIS_MODULE, - .driver_name = "bcm63xx_uart", - .dev_name = "ttyS", - .major = TTY_MAJOR, - .minor = 64, - .nr = 1, - .cons = BCM63XX_CONSOLE, -}; - -/* - * platform driver probe/remove callback - */ -static int __devinit bcm_uart_probe(struct platform_device *pdev) -{ - struct resource *res_mem, *res_irq; - struct uart_port *port; - struct clk *clk; - int ret; - - if (pdev->id < 0 || pdev->id >= BCM63XX_NR_UARTS) - return -EINVAL; - - if (ports[pdev->id].membase) - return -EBUSY; - - res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res_mem) - return -ENODEV; - - res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res_irq) - return -ENODEV; - - clk = clk_get(&pdev->dev, "periph"); - if (IS_ERR(clk)) - return -ENODEV; - - port = &ports[pdev->id]; - memset(port, 0, sizeof(*port)); - port->iotype = UPIO_MEM; - port->mapbase = res_mem->start; - port->irq = res_irq->start; - port->ops = &bcm_uart_ops; - port->flags = UPF_BOOT_AUTOCONF; - port->dev = &pdev->dev; - port->fifosize = 16; - port->uartclk = clk_get_rate(clk) / 2; - clk_put(clk); - - ret = uart_add_one_port(&bcm_uart_driver, port); - if (ret) { - kfree(port); - return ret; - } - platform_set_drvdata(pdev, port); - return 0; -} - -static int __devexit bcm_uart_remove(struct platform_device *pdev) -{ - struct uart_port *port; - - port = platform_get_drvdata(pdev); - uart_remove_one_port(&bcm_uart_driver, port); - platform_set_drvdata(pdev, NULL); - /* mark port as free */ - ports[pdev->id].membase = 0; - return 0; -} - -/* - * platform driver stuff - */ -static struct platform_driver bcm_uart_platform_driver = { - .probe = bcm_uart_probe, - .remove = __devexit_p(bcm_uart_remove), - .driver = { - .owner = THIS_MODULE, - .name = "bcm63xx_uart", - }, -}; - -static int __init bcm_uart_init(void) -{ - int ret; - - ret = uart_register_driver(&bcm_uart_driver); - if (ret) - return ret; - - ret = platform_driver_register(&bcm_uart_platform_driver); - if (ret) - uart_unregister_driver(&bcm_uart_driver); - - return ret; -} - -static void __exit bcm_uart_exit(void) -{ - platform_driver_unregister(&bcm_uart_platform_driver); - uart_unregister_driver(&bcm_uart_driver); -} - -module_init(bcm_uart_init); -module_exit(bcm_uart_exit); - -MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>"); -MODULE_DESCRIPTION("Broadcom 63<xx integrated uart driver"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c b/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c deleted file mode 100644 index a20de302d..000000000 --- a/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c +++ /dev/null @@ -1,445 +0,0 @@ -/* - * Broadcom BCM63xx SPI controller support - * - * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the - * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/clk.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/spi/spi.h> -#include <linux/spi/spi_bitbang.h> -#include <linux/gpio.h> -#include <linux/completion.h> -#include <linux/err.h> - -#include <bcm63xx_io.h> -#include <bcm63xx_regs.h> -#include <bcm63xx_dev_spi.h> - -#define PFX KBUILD_MODNAME -#define DRV_VER "0.1.2" - -struct bcm63xx_spi { - /* bitbang has to be first */ - struct spi_bitbang bitbang; - struct completion done; - - void __iomem *regs; - int irq; - - /* Platform data */ - u32 speed_hz; - unsigned fifo_size; - - /* Data buffers */ - const unsigned char *tx_ptr; - unsigned char *rx_ptr; - int remaining_bytes; - - struct clk *clk; - struct resource *ioarea; - struct platform_device *pdev; -}; - -static void bcm63xx_spi_chipselect(struct spi_device *spi, int is_on) -{ - struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); - u16 val; - - val = bcm_spi_readw(bs->regs, SPI_CMD); - if (is_on == BITBANG_CS_INACTIVE) - val |= SPI_CMD_NOOP; - else if (is_on == BITBANG_CS_ACTIVE) - val |= (1 << spi->chip_select << SPI_CMD_DEVICE_ID_SHIFT); - - bcm_spi_writew(val, bs->regs, SPI_CMD); -} - -static int bcm63xx_spi_setup_transfer(struct spi_device *spi, - struct spi_transfer *t) -{ - u8 bits_per_word; - u8 clk_cfg; - u32 hz; - unsigned int div; - - struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); - - bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word; - hz = (t) ? t->speed_hz : spi->max_speed_hz; - if (bits_per_word != 8) { - dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n", - __func__, bits_per_word); - return -EINVAL; - } - - if (spi->chip_select > spi->master->num_chipselect) { - dev_err(&spi->dev, "%s, unsupported slave %d\n", - __func__, spi->chip_select); - return -EINVAL; - } - - /* Check clock setting */ - div = (bs->speed_hz / hz); - switch (div) { - case 2: - clk_cfg = SPI_CLK_25MHZ; - break; - case 4: - clk_cfg = SPI_CLK_12_50MHZ; - break; - case 8: - clk_cfg = SPI_CLK_6_250MHZ; - break; - case 16: - clk_cfg = SPI_CLK_3_125MHZ; - break; - case 32: - clk_cfg = SPI_CLK_1_563MHZ; - break; - case 128: - clk_cfg = SPI_CLK_0_781MHZ; - break; - case 64: - default: - /* Set to slowest mode for compatibility */ - clk_cfg = SPI_CLK_0_781MHZ; - break; - } - - bcm_spi_writeb(clk_cfg, bs->regs, SPI_CLK_CFG); - dev_dbg(&spi->dev, "Setting clock register to %d (hz %d, cmd %02x)\n", - div, hz, clk_cfg); - - return 0; -} - -/* the spi->mode bits understood by this driver: */ -#define MODEBITS (SPI_CPOL | SPI_CPHA) - -static int bcm63xx_spi_setup(struct spi_device *spi) -{ - struct spi_bitbang *bitbang; - struct bcm63xx_spi *bs; - int retval; - - bs = spi_master_get_devdata(spi->master); - bitbang = &bs->bitbang; - - if (!spi->bits_per_word) - spi->bits_per_word = 8; - - if (spi->mode & ~MODEBITS) { - dev_err(&spi->dev, "%s, unsupported mode bits %x\n", - __func__, spi->mode & ~MODEBITS); - return -EINVAL; - } - - retval = bcm63xx_spi_setup_transfer(spi, NULL); - if (retval < 0) { - dev_err(&spi->dev, "setup: unsupported mode bits %x\n", - spi->mode & ~MODEBITS); - return retval; - } - - dev_dbg(&spi->dev, "%s, mode %d, %u bits/w, %u nsec/bit\n", - __func__, spi->mode & MODEBITS, spi->bits_per_word, 0); - - return 0; -} - -/* Fill the TX FIFO with as many bytes as possible */ -static void bcm63xx_spi_fill_tx_fifo(struct bcm63xx_spi *bs) -{ - u8 tail; - - /* Fill the Tx FIFO with as many bytes as possible */ - tail = bcm_spi_readb(bs->regs, SPI_MSG_TAIL); - while ((tail < bs->fifo_size) && (bs->remaining_bytes > 0)) { - if (bs->tx_ptr) - bcm_spi_writeb(*bs->tx_ptr++, bs->regs, SPI_MSG_DATA); - else - bcm_spi_writeb(0, bs->regs, SPI_MSG_DATA); - bs->remaining_bytes--; - tail = bcm_spi_readb(bs->regs, SPI_MSG_TAIL); - } -} - -static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) -{ - struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); - u8 msg_ctl; - u16 cmd; - - dev_dbg(&spi->dev, "txrx: tx %p, rx %p, len %d\n", - t->tx_buf, t->rx_buf, t->len); - - /* Transmitter is inhibited */ - bs->tx_ptr = t->tx_buf; - bs->rx_ptr = t->rx_buf; - bs->remaining_bytes = t->len; - init_completion(&bs->done); - - bcm63xx_spi_fill_tx_fifo(bs); - - /* Enable the command done interrupt which - * we use to determine completion of a command */ - bcm_spi_writeb(SPI_INTR_CMD_DONE, bs->regs, SPI_INT_MASK); - - /* Fill in the Message control register */ - msg_ctl = bcm_spi_readb(bs->regs, SPI_MSG_CTL); - msg_ctl |= (t->len << SPI_BYTE_CNT_SHIFT); - msg_ctl |= (SPI_FD_RW << SPI_MSG_TYPE_SHIFT); - bcm_spi_writeb(msg_ctl, bs->regs, SPI_MSG_CTL); - - /* Issue the transfer */ - cmd = bcm_spi_readb(bs->regs, SPI_CMD); - cmd |= SPI_CMD_START_IMMEDIATE; - cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT); - bcm_spi_writeb(cmd, bs->regs, SPI_CMD); - - wait_for_completion(&bs->done); - - /* Disable the CMD_DONE interrupt */ - bcm_spi_writeb(~(SPI_INTR_CMD_DONE), bs->regs, SPI_INT_MASK); - - return t->len - bs->remaining_bytes; -} - -/* This driver supports single master mode only. Hence - * CMD_DONE is the only interrupt we care about - */ -static irqreturn_t bcm63xx_spi_interrupt(int irq, void *dev_id) -{ - struct spi_master *master = (struct spi_master *)dev_id; - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - u8 intr; - u16 cmd; - - /* Read interupts and clear them immediately */ - intr = bcm_spi_readb(bs->regs, SPI_INT_STATUS); - bcm_spi_writeb(SPI_INTR_CLEAR_ALL, bs->regs, SPI_INT_MASK); - - /* A tansfer completed */ - if (intr & SPI_INTR_CMD_DONE) { - u8 rx_empty; - - rx_empty = bcm_spi_readb(bs->regs, SPI_ST); - /* Read out all the data */ - while ((rx_empty & SPI_RX_EMPTY) == 0) { - u8 data; - - data = bcm_spi_readb(bs->regs, SPI_RX_DATA); - if (bs->rx_ptr) - *bs->rx_ptr++ = data; - - rx_empty = bcm_spi_readb(bs->regs, SPI_RX_EMPTY); - } - - /* See if there is more data to send */ - if (bs->remaining_bytes > 0) { - bcm63xx_spi_fill_tx_fifo(bs); - - /* Start the transfer */ - cmd = bcm_spi_readb(bs->regs, SPI_CMD); - cmd |= SPI_CMD_START_IMMEDIATE; - cmd |= (0 << SPI_CMD_PREPEND_BYTE_CNT_SHIFT); - bcm_spi_writeb(cmd, bs->regs, SPI_CMD); - } else - complete(&bs->done); - } - - return IRQ_HANDLED; -} - - -static int __init bcm63xx_spi_probe(struct platform_device *pdev) -{ - struct resource *r; - struct bcm63xx_spi_pdata *pdata = pdev->dev.platform_data; - int irq; - struct spi_master *master; - struct clk *clk; - struct bcm63xx_spi *bs; - int ret; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - ret = -ENXIO; - goto out; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - ret = -ENXIO; - goto out; - } - - clk = clk_get(&pdev->dev, "spi"); - if (IS_ERR(clk)) { - dev_err(&pdev->dev, "No clock for device\n"); - ret = -ENODEV; - goto out; - } - - master = spi_alloc_master(&pdev->dev, sizeof(struct bcm63xx_spi)); - if (!master) { - ret = -ENOMEM; - goto out_free; - } - - bs = spi_master_get_devdata(master); - bs->bitbang.master = spi_master_get(master); - bs->bitbang.chipselect = bcm63xx_spi_chipselect; - bs->bitbang.setup_transfer = bcm63xx_spi_setup_transfer; - bs->bitbang.txrx_bufs = bcm63xx_txrx_bufs; - bs->bitbang.master->setup = bcm63xx_spi_setup; - init_completion(&bs->done); - - platform_set_drvdata(pdev, master); - bs->pdev = pdev; - - if (!request_mem_region(r->start, - r->end - r->start, PFX)) { - ret = -ENXIO; - goto out_free; - } - - bs->regs = ioremap_nocache(r->start, r->end - r->start); - if (!bs->regs) { - printk(KERN_ERR PFX " unable to ioremap regs\n"); - ret = -ENOMEM; - goto out_free; - } - bs->irq = irq; - bs->clk = clk; - bs->fifo_size = pdata->fifo_size; - - ret = request_irq(irq, bcm63xx_spi_interrupt, 0, - pdev->name, master); - if (ret) { - printk(KERN_ERR PFX " unable to request irq\n"); - goto out_unmap; - } - - master->bus_num = pdata->bus_num; - master->num_chipselect = pdata->num_chipselect; - bs->speed_hz = pdata->speed_hz; - - /* Initialize hardware */ - clk_enable(bs->clk); - bcm_spi_writeb(SPI_INTR_CLEAR_ALL, bs->regs, SPI_INT_MASK); - - dev_info(&pdev->dev, " at 0x%08x (irq %d, FIFOs size %d) v%s\n", - r->start, irq, bs->fifo_size, DRV_VER); - - ret = spi_bitbang_start(&bs->bitbang); - if (ret) { - dev_err(&pdev->dev, "spi_bitbang_start FAILED\n"); - goto out_reset_hw; - } - - return ret; - -out_reset_hw: - clk_disable(clk); - free_irq(irq, master); -out_unmap: - iounmap(bs->regs); -out_free: - clk_put(clk); - spi_master_put(master); -out: - return ret; -} - -static int __exit bcm63xx_spi_remove(struct platform_device *pdev) -{ - struct spi_master *master = platform_get_drvdata(pdev); - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - - spi_bitbang_stop(&bs->bitbang); - clk_disable(bs->clk); - clk_put(bs->clk); - free_irq(bs->irq, master); - iounmap(bs->regs); - platform_set_drvdata(pdev, 0); - spi_master_put(bs->bitbang.master); - - return 0; -} - -#ifdef CONFIG_PM -static int bcm63xx_spi_suspend(struct platform_device *pdev, pm_message_t mesg) -{ - struct spi_master *master = platform_get_drvdata(pdev); - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - - clk_disable(bs->clk); - - return 0; -} - -static int bcm63xx_spi_resume(struct platform_device *pdev) -{ - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - struct bcm63xx_spi *bs = spi_master_get_devdata(master); - - clk_enable(bs->clk); - - return 0; -} -#else -#define bcm63xx_spi_suspend NULL -#define bcm63xx_spi_resume NULL -#endif - -static struct platform_driver bcm63xx_spi_driver = { - .driver = { - .name = "bcm63xx-spi", - .owner = THIS_MODULE, - }, - .probe = bcm63xx_spi_probe, - .remove = bcm63xx_spi_remove, - .suspend = bcm63xx_spi_suspend, - .resume = bcm63xx_spi_resume, -}; - - -static int __init bcm63xx_spi_init(void) -{ - return platform_driver_register(&bcm63xx_spi_driver); -} - -static void __exit bcm63xx_spi_exit(void) -{ - platform_driver_unregister(&bcm63xx_spi_driver); -} - -module_init(bcm63xx_spi_init); -module_exit(bcm63xx_spi_exit); - -MODULE_ALIAS("platform:bcm63xx_spi"); -MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); -MODULE_DESCRIPTION("Broadcom BCM63xx SPI Controller driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(DRV_VER); diff --git a/target/linux/brcm63xx/files/drivers/usb/host/ehci-bcm63xx.c b/target/linux/brcm63xx/files/drivers/usb/host/ehci-bcm63xx.c deleted file mode 100644 index 2fef5716e..000000000 --- a/target/linux/brcm63xx/files/drivers/usb/host/ehci-bcm63xx.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - */ - -#include <linux/init.h> -#include <linux/platform_device.h> -#include <bcm63xx_cpu.h> -#include <bcm63xx_regs.h> -#include <bcm63xx_io.h> - -static int ehci_bcm63xx_setup(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - int retval; - - retval = ehci_halt(ehci); - if (retval) - return retval; - - retval = ehci_init(hcd); - if (retval) - return retval; - - hcd->has_tt = 1; - ehci_reset(ehci); - ehci_port_power(ehci, 0); - - return retval; -} - - -static const struct hc_driver ehci_bcm63xx_hc_driver = { - .description = hcd_name, - .product_desc = "BCM63XX integrated EHCI controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - .reset = ehci_bcm63xx_setup, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - - .get_frame_number = ehci_get_frame, - - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, -}; - -static int __devinit ehci_hcd_bcm63xx_drv_probe(struct platform_device *pdev) -{ - struct resource *res_mem, *res_irq; - struct usb_hcd *hcd; - struct ehci_hcd *ehci; - u32 reg; - int ret; - - res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res_mem || !res_irq) - return -ENODEV; - - reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_REG); - reg &= ~USBH_PRIV_SWAP_EHCI_DATA_MASK; - reg |= USBH_PRIV_SWAP_EHCI_ENDN_MASK; - bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SWAP_REG); - - /* don't ask... */ - bcm_rset_writel(RSET_USBH_PRIV, 0x1c0020, USBH_PRIV_TEST_REG); - - hcd = usb_create_hcd(&ehci_bcm63xx_hc_driver, &pdev->dev, "bcm63xx"); - if (!hcd) - return -ENOMEM; - hcd->rsrc_start = res_mem->start; - hcd->rsrc_len = res_mem->end - res_mem->start + 1; - - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed\n"); - ret = -EBUSY; - goto out; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed\n"); - ret = -EIO; - goto out1; - } - - ehci = hcd_to_ehci(hcd); - ehci->big_endian_mmio = 1; - ehci->big_endian_desc = 0; - ehci->caps = hcd->regs; - ehci->regs = hcd->regs + - HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); - ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); - ehci->sbrn = 0x20; - - ret = usb_add_hcd(hcd, res_irq->start, IRQF_DISABLED); - if (ret) - goto out2; - - platform_set_drvdata(pdev, hcd); - return 0; - -out2: - iounmap(hcd->regs); -out1: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -out: - usb_put_hcd(hcd); - return ret; -} - -static int __devexit ehci_hcd_bcm63xx_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - - hcd = platform_get_drvdata(pdev); - usb_remove_hcd(hcd); - iounmap(hcd->regs); - usb_put_hcd(hcd); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - platform_set_drvdata(pdev, NULL); - return 0; -} - -static struct platform_driver ehci_hcd_bcm63xx_driver = { - .probe = ehci_hcd_bcm63xx_drv_probe, - .remove = __devexit_p(ehci_hcd_bcm63xx_drv_remove), - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "bcm63xx_ehci", - .owner = THIS_MODULE, - .bus = &platform_bus_type - }, -}; - -MODULE_ALIAS("platform:bcm63xx_ehci"); diff --git a/target/linux/brcm63xx/files/drivers/usb/host/ohci-bcm63xx.c b/target/linux/brcm63xx/files/drivers/usb/host/ohci-bcm63xx.c deleted file mode 100644 index 08807d989..000000000 --- a/target/linux/brcm63xx/files/drivers/usb/host/ohci-bcm63xx.c +++ /dev/null @@ -1,159 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - */ - -#include <linux/init.h> -#include <linux/clk.h> -#include <linux/platform_device.h> -#include <bcm63xx_cpu.h> -#include <bcm63xx_regs.h> -#include <bcm63xx_io.h> - -static struct clk *usb_host_clock; - -static int __devinit ohci_bcm63xx_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - ret = ohci_init(ohci); - if (ret < 0) - return ret; - - /* FIXME: autodetected port 2 is shared with USB slave */ - - ret = ohci_run(ohci); - if (ret < 0) { - err("can't start %s", hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - return 0; -} - -static const struct hc_driver ohci_bcm63xx_hc_driver = { - .description = hcd_name, - .product_desc = "BCM63XX integrated OHCI controller", - .hcd_priv_size = sizeof(struct ohci_hcd), - - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - .start = ohci_bcm63xx_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - .get_frame_number = ohci_get_frame, - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, - .start_port_reset = ohci_start_port_reset, -}; - -static int __devinit ohci_hcd_bcm63xx_drv_probe(struct platform_device *pdev) -{ - struct resource *res_mem, *res_irq; - struct usb_hcd *hcd; - struct ohci_hcd *ohci; - u32 reg; - int ret; - - res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res_mem || !res_irq) - return -ENODEV; - - if (BCMCPU_IS_6348()) { - struct clk *clk; - /* enable USB host clock */ - clk = clk_get(&pdev->dev, "usbh"); - if (IS_ERR(clk)) - return -ENODEV; - - clk_enable(clk); - usb_host_clock = clk; - bcm_rset_writel(RSET_OHCI_PRIV, 0, OHCI_PRIV_REG); - - } else if (BCMCPU_IS_6358()) { - reg = bcm_rset_readl(RSET_USBH_PRIV, USBH_PRIV_SWAP_REG); - reg &= ~USBH_PRIV_SWAP_OHCI_ENDN_MASK; - reg |= USBH_PRIV_SWAP_OHCI_DATA_MASK; - bcm_rset_writel(RSET_USBH_PRIV, reg, USBH_PRIV_SWAP_REG); - /* don't ask... */ - bcm_rset_writel(RSET_USBH_PRIV, 0x1c0020, USBH_PRIV_TEST_REG); - } else - return 0; - - hcd = usb_create_hcd(&ohci_bcm63xx_hc_driver, &pdev->dev, "bcm63xx"); - if (!hcd) - return -ENOMEM; - hcd->rsrc_start = res_mem->start; - hcd->rsrc_len = res_mem->end - res_mem->start + 1; - - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_debug("request_mem_region failed\n"); - ret = -EBUSY; - goto out; - } - - hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); - if (!hcd->regs) { - pr_debug("ioremap failed\n"); - ret = -EIO; - goto out1; - } - - ohci = hcd_to_ohci(hcd); - ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC | - OHCI_QUIRK_FRAME_NO; - ohci_hcd_init(ohci); - - ret = usb_add_hcd(hcd, res_irq->start, IRQF_DISABLED); - if (ret) - goto out2; - - platform_set_drvdata(pdev, hcd); - return 0; - -out2: - iounmap(hcd->regs); -out1: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); -out: - usb_put_hcd(hcd); - return ret; -} - -static int __devexit ohci_hcd_bcm63xx_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - - hcd = platform_get_drvdata(pdev); - usb_remove_hcd(hcd); - iounmap(hcd->regs); - usb_put_hcd(hcd); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - if (usb_host_clock) { - clk_disable(usb_host_clock); - clk_put(usb_host_clock); - } - platform_set_drvdata(pdev, NULL); - return 0; -} - -static struct platform_driver ohci_hcd_bcm63xx_driver = { - .probe = ohci_hcd_bcm63xx_drv_probe, - .remove = __devexit_p(ohci_hcd_bcm63xx_drv_remove), - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "bcm63xx_ohci", - .owner = THIS_MODULE, - .bus = &platform_bus_type - }, -}; - -MODULE_ALIAS("platform:bcm63xx_ohci"); diff --git a/target/linux/brcm63xx/files/drivers/watchdog/bcm63xx_wdt.c b/target/linux/brcm63xx/files/drivers/watchdog/bcm63xx_wdt.c deleted file mode 100644 index 8d58ccd8b..000000000 --- a/target/linux/brcm63xx/files/drivers/watchdog/bcm63xx_wdt.c +++ /dev/null @@ -1,334 +0,0 @@ -/* - * Broadcom BCM63xx SoC watchdog driver - * - * Copyright (C) 2007, Miguel Gaio <miguel.gaio@efixo.com> - * Copyright (C) 2008, Florian Fainelli <florian@openwrt.org> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/bitops.h> -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/miscdevice.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/reboot.h> -#include <linux/types.h> -#include <linux/uaccess.h> -#include <linux/watchdog.h> -#include <linux/timer.h> -#include <linux/jiffies.h> -#include <linux/resource.h> -#include <linux/platform_device.h> - -#include <bcm63xx_cpu.h> -#include <bcm63xx_io.h> -#include <bcm63xx_regs.h> - -#define PFX KBUILD_MODNAME - -#define WDT_HZ 50000000 /* Fclk */ -#define WDT_DEFAULT_TIME 30 /* seconds */ -#define WDT_MAX_TIME 256 /* seconds */ - -static struct { - void __iomem *regs; - struct timer_list timer; - int default_ticks; - unsigned long inuse; - atomic_t ticks; -} bcm63xx_wdt_device; - -static int expect_close; -static int timeout; - -static int wdt_time = WDT_DEFAULT_TIME; -static int nowayout = WATCHDOG_NOWAYOUT; -module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" - __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); - -/* HW functions */ -static void bcm63xx_wdt_hw_start(void) -{ - bcm_writel(0xfffffffe, bcm63xx_wdt_device.regs + WDT_DEFVAL_REG); - bcm_writel(WDT_START_1, bcm63xx_wdt_device.regs + WDT_CTL_REG); - bcm_writel(WDT_START_2, bcm63xx_wdt_device.regs + WDT_CTL_REG); -} - -static void bcm63xx_wdt_hw_stop(void) -{ - bcm_writel(WDT_STOP_1, bcm63xx_wdt_device.regs + WDT_CTL_REG); - bcm_writel(WDT_STOP_2, bcm63xx_wdt_device.regs + WDT_CTL_REG); -} - -static void bcm63xx_timer_tick(unsigned long unused) -{ - if (!atomic_dec_and_test(&bcm63xx_wdt_device.ticks)) { - bcm63xx_wdt_hw_start(); - mod_timer(&bcm63xx_wdt_device.timer, jiffies + HZ); - } else - printk(KERN_CRIT PFX ": watchdog will restart system\n"); -} - -static void bcm63xx_wdt_pet(void) -{ - atomic_set(&bcm63xx_wdt_device.ticks, wdt_time); -} - -static void bcm63xx_wdt_start(void) -{ - bcm63xx_wdt_pet(); - bcm63xx_timer_tick(0); -} - -static void bcm63xx_wdt_pause(void) -{ - del_timer_sync(&bcm63xx_wdt_device.timer); - bcm63xx_wdt_hw_stop(); -} - -static int bcm63xx_wdt_settimeout(int new_time) -{ - if ((new_time <= 0) || (new_time > WDT_MAX_TIME)) - return -EINVAL; - - wdt_time = new_time; - - return 0; -} - -static int bcm63xx_wdt_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &bcm63xx_wdt_device.inuse)) - return -EBUSY; - - bcm63xx_wdt_start(); - return nonseekable_open(inode, file); -} - -static int bcm63xx_wdt_release(struct inode *inode, struct file *file) -{ - if (expect_close == 42) - bcm63xx_wdt_pause(); - else { - printk(KERN_CRIT PFX - ": Unexpected close, not stopping watchdog!\n"); - bcm63xx_wdt_start(); - } - clear_bit(0, &bcm63xx_wdt_device.inuse); - expect_close = 0; - return 0; -} - -static ssize_t bcm63xx_wdt_write(struct file *file, const char *data, - size_t len, loff_t *ppos) -{ - if (len) { - if (!nowayout) { - size_t i; - - /* In case it was set long ago */ - expect_close = 0; - - for (i = 0; i != len; i++) { - char c; - if (get_user(c, data + i)) - return -EFAULT; - if (c == 'V') - expect_close = 42; - } - } - bcm63xx_wdt_pet(); - } - return len; -} - -static struct watchdog_info bcm63xx_wdt_info = { - .identity = PFX, - .options = WDIOF_SETTIMEOUT | - WDIOF_KEEPALIVEPING | - WDIOF_MAGICCLOSE, -}; - - -static long bcm63xx_wdt_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) -{ - void __user *argp = (void __user *)arg; - int __user *p = argp; - int new_value, retval = -EINVAL; - - switch (cmd) { - case WDIOC_GETSUPPORT: - return copy_to_user(argp, &bcm63xx_wdt_info, - sizeof(bcm63xx_wdt_info)) ? -EFAULT : 0; - - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0, p); - - case WDIOC_SETOPTIONS: - if (get_user(new_value, p)) - return -EFAULT; - - if (new_value & WDIOS_DISABLECARD) { - bcm63xx_wdt_pause(); - retval = 0; - } - if (new_value & WDIOS_ENABLECARD) { - bcm63xx_wdt_start(); - retval = 0; - } - - return retval; - - case WDIOC_KEEPALIVE: - bcm63xx_wdt_pet(); - return 0; - - case WDIOC_SETTIMEOUT: - if (get_user(new_value, p)) - return -EFAULT; - - if (bcm63xx_wdt_settimeout(new_value)) - return -EINVAL; - - bcm63xx_wdt_pet(); - - case WDIOC_GETTIMEOUT: - return put_user(wdt_time, p); - - default: - return -ENOTTY; - - } -} - -static int bcm63xx_wdt_notify_sys(struct notifier_block *this, - unsigned long code, void *unused) -{ - if (code == SYS_DOWN || code == SYS_HALT) - bcm63xx_wdt_pause(); - return NOTIFY_DONE; -} - -static const struct file_operations bcm63xx_wdt_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .write = bcm63xx_wdt_write, - .unlocked_ioctl = bcm63xx_wdt_ioctl, - .open = bcm63xx_wdt_open, - .release = bcm63xx_wdt_release, -}; - -static struct miscdevice bcm63xx_wdt_miscdev = { - .minor = WATCHDOG_MINOR, - .name = "watchdog", - .fops = &bcm63xx_wdt_fops, -}; - -static struct notifier_block bcm63xx_wdt_notifier = { - .notifier_call = bcm63xx_wdt_notify_sys, -}; - - -static int bcm63xx_wdt_probe(struct platform_device *pdev) -{ - int ret; - struct resource *r; - - setup_timer(&bcm63xx_wdt_device.timer, bcm63xx_timer_tick, 0L); - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - printk(KERN_ERR PFX - "failed to retrieve resources\n"); - return -ENODEV; - } - - bcm63xx_wdt_device.regs = ioremap_nocache(r->start, r->end - r->start); - if (!bcm63xx_wdt_device.regs) { - printk(KERN_ERR PFX - "failed to remap I/O resources\n"); - return -ENXIO; - } - - if (bcm63xx_wdt_settimeout(wdt_time)) { - bcm63xx_wdt_settimeout(WDT_DEFAULT_TIME); - printk(KERN_INFO PFX - ": wdt_time value must be 1 <= wdt_time <= 256, using %d\n", - wdt_time); - } - - ret = register_reboot_notifier(&bcm63xx_wdt_notifier); - if (ret) { - printk(KERN_ERR PFX - "failed to register reboot_notifier\n"); - return ret; - } - - ret = misc_register(&bcm63xx_wdt_miscdev); - if (ret < 0) { - printk(KERN_ERR PFX - "failed to register watchdog device\n"); - goto unmap; - } - - printk(KERN_INFO PFX " started, timer margin: %d sec\n", WDT_DEFAULT_TIME); - - return 0; - -unmap: - unregister_reboot_notifier(&bcm63xx_wdt_notifier); - iounmap(bcm63xx_wdt_device.regs); - return ret; -} - -static int bcm63xx_wdt_remove(struct platform_device *pdev) -{ - if (!nowayout) - bcm63xx_wdt_pause(); - - misc_deregister(&bcm63xx_wdt_miscdev); - - iounmap(bcm63xx_wdt_device.regs); - - unregister_reboot_notifier(&bcm63xx_wdt_notifier); - - return 0; -} - -static struct platform_driver bcm63xx_wdt = { - .probe = bcm63xx_wdt_probe, - .remove = bcm63xx_wdt_remove, - .driver = { - .name = "bcm63xx-wdt", - } -}; - -static int __init bcm63xx_wdt_init(void) -{ - return platform_driver_register(&bcm63xx_wdt); -} - -static void __exit bcm63xx_wdt_exit(void) -{ - platform_driver_unregister(&bcm63xx_wdt); -} - -module_init(bcm63xx_wdt_init); -module_exit(bcm63xx_wdt_exit); - -MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>"); -MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>"); -MODULE_DESCRIPTION("Driver for the Broadcom BCM63xx SoC watchdog"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); -MODULE_ALIAS("platform:bcm63xx-wdt"); |