diff options
Diffstat (limited to 'target/linux/rb532/files/drivers')
| -rw-r--r-- | target/linux/rb532/files/drivers/block/rb500/Makefile | 3 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/block/rb500/ata.c | 487 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/block/rb500/ata.h | 143 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/block/rb500/bdev.c | 340 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/char/watchdog/rc32434_wdt.c | 240 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/leds/leds-rb500.c | 81 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/net/korina.c | 1167 | ||||
| -rw-r--r-- | target/linux/rb532/files/drivers/net/rc32434_eth.h | 178 |
8 files changed, 0 insertions, 2639 deletions
diff --git a/target/linux/rb532/files/drivers/block/rb500/Makefile b/target/linux/rb532/files/drivers/block/rb500/Makefile deleted file mode 100644 index 3e14dc35b..000000000 --- a/target/linux/rb532/files/drivers/block/rb500/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -## Makefile for the RB532 CF port - -obj-y += bdev.o ata.o diff --git a/target/linux/rb532/files/drivers/block/rb500/ata.c b/target/linux/rb532/files/drivers/block/rb500/ata.c deleted file mode 100644 index 31e6782fa..000000000 --- a/target/linux/rb532/files/drivers/block/rb500/ata.c +++ /dev/null @@ -1,487 +0,0 @@ -/* CF-mips driver - This is a block driver for the direct (mmaped) interface to the CF-slot, - found in Routerboard.com's RB532 board - See SDK provided from routerboard.com. - - Module adapted By P.Christeas <p_christeas@yahoo.com>, 2005-6. - Cleaned up and adapted to platform_device by Felix Fietkau <nbd@openwrt.org> - - This work is redistributed under the terms of the GNU General Public License. -*/ - -#include <linux/kernel.h> /* printk() */ -#include <linux/module.h> /* module to be loadable */ -#include <linux/delay.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/ioport.h> /* request_mem_region() */ - -#include <asm/gpio.h> -#include <asm/unaligned.h> /* ioremap() */ -#include <asm/io.h> /* ioremap() */ -#include <asm/rc32434/rb.h> - -#include "ata.h" - -#define REQUEST_MEM_REGION 0 -#define DEBUG 1 - -#if DEBUG -#define DEBUGP printk -#else -#define DEBUGP(format, args...) -#endif - -#define SECS 1000000 /* unit for wait_not_busy() is 1us */ - -unsigned cf_head = 0; -unsigned cf_cyl = 0; -unsigned cf_spt = 0; -unsigned cf_sectors = 0; -static unsigned cf_block_size = 1; -static void *baddr = 0; - -#define DBUF32 ((volatile u32 *)((unsigned long)dev->baddr | ATA_DBUF_OFFSET)) - - -static void cf_do_tasklet(unsigned long dev_l); - - -static inline void wareg(u8 val, unsigned reg, struct cf_mips_dev* dev) -{ - writeb(val, dev->baddr + ATA_REG_OFFSET + reg); -} - -static inline u8 rareg(unsigned reg, struct cf_mips_dev* dev) -{ - return readb(dev->baddr + ATA_REG_OFFSET + reg); -} - -static inline int cfrdy(struct cf_mips_dev *dev) -{ - return gpio_get_value(dev->pin); -} - -static inline void prepare_cf_irq(struct cf_mips_dev *dev) -{ - rb500_gpio_set_int_level(1, dev->pin); /* interrupt on cf ready (not busy) */ - rb500_gpio_set_int_status(0, dev->pin); /* clear interrupt status */ -} - -static inline int cf_present(struct cf_mips_dev* dev) -{ - /* TODO: read and configure CIS into memory mapped mode - * TODO: parse CISTPL_CONFIG on CF+ cards to get base address (0x200) - * TODO: maybe adjust power saving setting for Hitachi Microdrive - */ - int i; - - /* setup CFRDY GPIO as input */ - rb500_gpio_set_func(dev->pin, 0); - gpio_direction_input(dev->pin); - - for (i = 0; i < 0x10; ++i) { - if (rareg(i,dev) != 0xff) - return 1; - } - return 0; -} - -static inline int is_busy(struct cf_mips_dev *dev) -{ - return !cfrdy(dev); -} - -static int wait_not_busy(int to_us, int wait_for_busy,struct cf_mips_dev *dev) -{ - int us_passed = 0; - if (wait_for_busy && !is_busy(dev)) { - /* busy must appear within 400ns, - * but it may dissapear before we see it - * => must not wait for busy in a loop - */ - ndelay(400); - } - - do { - if (us_passed) - udelay(1); /* never reached in async mode */ - if (!is_busy(dev)) { - if (us_passed > 1 * SECS) { - printk(KERN_WARNING "cf-mips: not busy ok (after %dus)" - ", status 0x%02x\n", us_passed, (unsigned) rareg(ATA_REG_ST,dev)); - } - return CF_TRANS_OK; - } - if (us_passed == 1 * SECS) { - printk(KERN_WARNING "cf-mips: wait not busy %dus..\n", to_us); - } - if (dev->async_mode) { - dev->to_timer.expires = jiffies + (to_us * HZ / SECS); - dev->irq_enable_time = jiffies; - prepare_cf_irq(dev); - if (is_busy(dev)) { - add_timer(&dev->to_timer); - enable_irq(dev->irq); - return CF_TRANS_IN_PROGRESS; - } - continue; - } - ++us_passed; - } while (us_passed < to_us); - - printk(KERN_ERR "cf-mips: wait not busy timeout (%dus)" - ", status 0x%02x, state %d\n", - to_us, (unsigned) rareg(ATA_REG_ST,dev), dev->tstate); - return CF_TRANS_FAILED; -} - -static irqreturn_t cf_irq_handler(int irq, void *dev_id) -{ - /* While tasklet has not disabled irq, irq will be retried all the time - * because of ILEVEL matching GPIO pin status => deadlock. - * To avoid this, we change ILEVEL to 0. - */ - struct cf_mips_dev *dev=dev_id; - - rb500_gpio_set_int_level(0, dev->pin); - rb500_gpio_set_int_status(0, dev->pin); - - del_timer(&dev->to_timer); - tasklet_schedule(&dev->tasklet); - return IRQ_HANDLED; -} - -static int do_reset(struct cf_mips_dev *dev) -{ - printk(KERN_INFO "cf-mips: resetting..\n"); - - wareg(ATA_REG_DC_SRST, ATA_REG_DC,dev); - udelay(1); /* FIXME: how long should we wait here? */ - wareg(0, ATA_REG_DC,dev); - - return wait_not_busy(30 * SECS, 1,dev); -} - -static int set_multiple(struct cf_mips_dev *dev) -{ - if (dev->block_size <= 1) - return CF_TRANS_OK; - - wareg(dev->block_size, ATA_REG_SC,dev); - wareg(ATA_REG_DH_BASE | ATA_REG_DH_LBA, ATA_REG_DH,dev); - wareg(ATA_CMD_SET_MULTIPLE, ATA_REG_CMD,dev); - - return wait_not_busy(10 * SECS, 1,dev); -} - -static int set_cmd(struct cf_mips_dev *dev) -{ - //DEBUGP(KERN_INFO "cf-mips: ata cmd 0x%02x\n", dev->tcmd); - // sector_count should be <=24 bits.. - BUG_ON(dev->tsect_start>=0x10000000); - // This way, it addresses 2^24 * 512 = 128G - - if (dev->tsector_count) { - wareg(dev->tsector_count & 0xff, ATA_REG_SC,dev); - wareg(dev->tsect_start & 0xff, ATA_REG_SN,dev); - wareg((dev->tsect_start >> 8) & 0xff, ATA_REG_CL,dev); - wareg((dev->tsect_start >> 16) & 0xff, ATA_REG_CH,dev); - } - wareg(((dev->tsect_start >> 24) & 0x0f) | ATA_REG_DH_BASE | ATA_REG_DH_LBA, - ATA_REG_DH,dev); /* select drive on all commands */ - wareg(dev->tcmd, ATA_REG_CMD,dev); - return wait_not_busy(10 * SECS, 1,dev); -} - -static int do_trans(struct cf_mips_dev *dev) -{ - int res; - unsigned st; - int transfered; - - //printk("do_trans: %d sectors left\n",dev->tsectors_left); - while (dev->tsectors_left) { - transfered = 0; - - st = rareg(ATA_REG_ST,dev); - if (!(st & ATA_REG_ST_DRQ)) { - printk(KERN_ERR "cf-mips: do_trans without DRQ (status 0x%x)!\n", st); - if (st & ATA_REG_ST_ERR) { - int errId = rareg(ATA_REG_ERR,dev); - printk(KERN_ERR "cf-mips: %s error, status 0x%x, errid 0x%x\n", - (dev->tread ? "read" : "write"), st, errId); - } - return CF_TRANS_FAILED; - } - do { /* Fill/read the buffer one block */ - u32 *qbuf, *qend; - qbuf = (u32 *)dev->tbuf; - qend = qbuf + CF_SECT_SIZE / sizeof(u32); - if (dev->tread) { - while (qbuf!=qend) - put_unaligned(*DBUF32,qbuf++); - //*(qbuf++) = *DBUF32; - } - else { - while(qbuf!=qend) - *DBUF32 = get_unaligned(qbuf++); - } - - dev->tsectors_left--; - dev->tbuf += CF_SECT_SIZE; - dev->tbuf_size -= CF_SECT_SIZE; - transfered++; - } while (transfered != dev->block_size && dev->tsectors_left > 0); - - res = wait_not_busy(10 * SECS, 1,dev); - if (res != CF_TRANS_OK) - return res; - }; - - st = rareg(ATA_REG_ST,dev); - if (st & (ATA_REG_ST_DRQ | ATA_REG_ST_DWF | ATA_REG_ST_ERR)) { - if (st & ATA_REG_ST_DRQ) { - printk(KERN_ERR "cf-mips: DRQ after all %d sectors are %s" - ", status 0x%x\n", dev->tsector_count, (dev->tread ? "read" : "written"), st); - } else if (st & ATA_REG_ST_DWF) { - printk(KERN_ERR "cf-mips: write fault, status 0x%x\n", st); - } else { - int errId = rareg(ATA_REG_ERR,dev); - printk(KERN_ERR "cf-mips: %s error, status 0x%x, errid 0x%x\n", - (dev->tread ? "read" : "write"), st, errId); - } - return CF_TRANS_FAILED; - } - return CF_TRANS_OK; -} - -static int cf_do_state(struct cf_mips_dev *dev) -{ - int res; - switch (dev->tstate) { /* fall through everywhere */ - case TS_IDLE: - dev->tstate = TS_READY; - if (is_busy(dev)) { - dev->tstate = TS_AFTER_RESET; - res = do_reset(dev); - if (res != CF_TRANS_OK) - break; - } - case TS_AFTER_RESET: - if (dev->tstate == TS_AFTER_RESET) { - dev->tstate = TS_READY; - res = set_multiple(dev); - if (res != CF_TRANS_OK) - break; - } - case TS_READY: - dev->tstate = TS_CMD; - res = set_cmd(dev); - if (res != CF_TRANS_OK) - break;; - case TS_CMD: - dev->tstate = TS_TRANS; - case TS_TRANS: - res = do_trans(dev); - break; - default: - printk(KERN_ERR "cf-mips: BUG: unknown tstate %d\n", dev->tstate); - return CF_TRANS_FAILED; - } - if (res != CF_TRANS_IN_PROGRESS) - dev->tstate = TS_IDLE; - return res; -} - -static void cf_do_tasklet(unsigned long dev_l) -{ - struct cf_mips_dev* dev=(struct cf_mips_dev*) dev_l; - int res; - - disable_irq(dev->irq); - - if (dev->tstate == TS_IDLE) - return; /* can happen when irq is first registered */ - -#if 0 - DEBUGP(KERN_WARNING "cf-mips: not busy ok (tasklet) status 0x%02x\n", - (unsigned) rareg(ATA_REG_ST,dev)); -#endif - - res = cf_do_state(dev); - if (res == CF_TRANS_IN_PROGRESS) - return; - cf_async_trans_done(dev,res); -} - -static void cf_async_timeout(unsigned long dev_l) -{ - struct cf_mips_dev* dev=(struct cf_mips_dev*) dev_l; - disable_irq(dev->irq); - /* Perhaps send abort to the device? */ - printk(KERN_ERR "cf-mips: wait not busy timeout (%lus)" - ", status 0x%02x, state %d\n", - jiffies - dev->irq_enable_time, (unsigned) rareg(ATA_REG_ST,dev), dev->tstate); - dev->tstate = TS_IDLE; - cf_async_trans_done(dev,CF_TRANS_FAILED); -} - -int cf_do_transfer(struct cf_mips_dev* dev,sector_t sector, unsigned long nsect, - char* buffer, int is_write) -{ - BUG_ON(dev->tstate!=TS_IDLE); - if (nsect > ATA_MAX_SECT_PER_CMD) { - printk(KERN_WARNING "cf-mips: sector count %lu out of range\n",nsect); - return CF_TRANS_FAILED; - } - if (sector + nsect > dev->sectors) { - printk(KERN_WARNING "cf-mips: sector %lu out of range\n",sector); - return CF_TRANS_FAILED; - } - dev->tbuf = buffer; - dev->tbuf_size = nsect*512; - dev->tsect_start = sector; - dev->tsector_count = nsect; - dev->tsectors_left = dev->tsector_count; - dev->tread = (is_write)?0:1; - - dev->tcmd = (dev->block_size == 1 ? - (is_write ? ATA_CMD_WRITE_SECTORS : ATA_CMD_READ_SECTORS) : - (is_write ? ATA_CMD_WRITE_MULTIPLE : ATA_CMD_READ_MULTIPLE)); - - return cf_do_state(dev); -} - -static int do_identify(struct cf_mips_dev *dev) -{ - u16 sbuf[CF_SECT_SIZE >> 1]; - int res; - char tstr[17]; //serial - char tmp; - int i; - BUG_ON(dev->tstate!=TS_IDLE); - dev->tbuf = (char *) sbuf; - dev->tbuf_size = CF_SECT_SIZE; - dev->tsect_start = 0; - dev->tsector_count = 0; - dev->tsectors_left = 1; - dev->tread = 1; - dev->tcmd = ATA_CMD_IDENTIFY_DRIVE; - - DEBUGP(KERN_INFO "cf-mips: identify drive..\n"); - res = cf_do_state(dev); - if (res == CF_TRANS_IN_PROGRESS) { - printk(KERN_ERR "cf-mips: BUG: async identify cmd\n"); - return CF_TRANS_FAILED; - } - if (res != CF_TRANS_OK) - return 0; - - dev->head = sbuf[3]; - dev->cyl = sbuf[1]; - dev->spt = sbuf[6]; - dev->sectors = ((unsigned long) sbuf[7] << 16) | sbuf[8]; - dev->dtype=sbuf[0]; - memcpy(tstr, &sbuf[12], 16); - tstr[16] = '\0'; - - /* Byte-swap the serial number */ - for (i = 0; i<8; i++) { - tmp = tstr[i * 2]; - tstr[i * 2] = tstr[i * 2 +1]; - tstr[i * 2 + 1] = tmp; - } - - printk(KERN_INFO "cf-mips: %s detected, C/H/S=%d/%d/%d sectors=%u (%uMB) Serial=%s\n", - (sbuf[0] == 0x848A ? "CF card" : "ATA drive"), dev->cyl, dev->head, - dev->spt, dev->sectors, dev->sectors >> 11, tstr); - return 1; -} - -static void init_multiple(struct cf_mips_dev * dev) -{ - int res; - DEBUGP(KERN_INFO "cf-mips: detecting block size\n"); - - dev->block_size = 128; /* max block size = 128 sectors (64KB) */ - do { - wareg(dev->block_size, ATA_REG_SC,dev); - wareg(ATA_REG_DH_BASE | ATA_REG_DH_LBA, ATA_REG_DH,dev); - wareg(ATA_CMD_SET_MULTIPLE, ATA_REG_CMD,dev); - - res = wait_not_busy(10 * SECS, 1,dev); - if (res != CF_TRANS_OK) { - printk(KERN_ERR "cf-mips: failed to detect block size: busy!\n"); - dev->block_size = 1; - return; - } - if ((rareg(ATA_REG_ST,dev) & ATA_REG_ST_ERR) == 0) - break; - dev->block_size /= 2; - } while (dev->block_size > 1); - - printk(KERN_INFO "cf-mips: multiple sectors = %d\n", dev->block_size); -} - -int cf_init(struct cf_mips_dev *dev) -{ - tasklet_init(&dev->tasklet,cf_do_tasklet,(unsigned long)dev); - dev->baddr = ioremap_nocache((unsigned long)dev->base, CFDEV_BUF_SIZE); - if (!dev->baddr) { - printk(KERN_ERR "cf-mips: cf_init: ioremap for (%lx,%x) failed\n", - (unsigned long) dev->base, CFDEV_BUF_SIZE); - return -EBUSY; - } - - if (!cf_present(dev)) { - printk(KERN_WARNING "cf-mips: cf card not present\n"); - iounmap(dev->baddr); - return -ENODEV; - } - - if (do_reset(dev) != CF_TRANS_OK) { - printk(KERN_ERR "cf-mips: cf reset failed\n"); - iounmap(dev->baddr); - return -EBUSY; - } - - if (!do_identify(dev)) { - printk(KERN_ERR "cf-mips: cf identify failed\n"); - iounmap(dev->baddr); - return -EBUSY; - } - -/* set_apm_level(ATA_APM_WITH_STANDBY); */ - init_multiple(dev); - - init_timer(&dev->to_timer); - dev->to_timer.function = cf_async_timeout; - dev->to_timer.data = (unsigned long)dev; - - prepare_cf_irq(dev); - if (request_irq(dev->irq, cf_irq_handler, 0, "CF Mips", dev)) { - printk(KERN_ERR "cf-mips: failed to get irq\n"); - iounmap(dev->baddr); - return -EBUSY; - } - /* Disable below would be odd, because request will enable, and the tasklet - will disable it itself */ - //disable_irq(dev->irq); - - dev->async_mode = 1; - - return 0; -} - -void cf_cleanup(struct cf_mips_dev *dev) -{ - iounmap(dev->baddr); - free_irq(dev->irq, NULL); -#if REQUEST_MEM_REGION - release_mem_region((unsigned long)dev->base, CFDEV_BUF_SIZE); -#endif -} - - -/*eof*/ diff --git a/target/linux/rb532/files/drivers/block/rb500/ata.h b/target/linux/rb532/files/drivers/block/rb500/ata.h deleted file mode 100644 index 15e882630..000000000 --- a/target/linux/rb532/files/drivers/block/rb500/ata.h +++ /dev/null @@ -1,143 +0,0 @@ -/* CF-mips driver - This is a block driver for the direct (mmaped) interface to the CF-slot, - found in Routerboard.com's RB532 board - See SDK provided from routerboard.com. - - Module adapted By P.Christeas <p_christeas@yahoo.com>, 2005-6. - Cleaned up and adapted to platform_device by Felix Fietkau <nbd@openwrt.org> - - This work is redistributed under the terms of the GNU General Public License. -*/ - -#ifndef __CFMIPS_ATA_H__ -#define __CFMIPS_ATA_H__ - -#include <linux/interrupt.h> - -#define CFG_DC_DEV1 (void*)0xb8010010 -#define CFG_DC_DEVBASE 0x0 -#define CFG_DC_DEVMASK 0x4 -#define CFG_DC_DEVC 0x8 -#define CFG_DC_DEVTC 0xC - -#define CFDEV_BUF_SIZE 0x1000 -#define ATA_CIS_OFFSET 0x200 -#define ATA_REG_OFFSET 0x800 -#define ATA_DBUF_OFFSET 0xC00 - -#define ATA_REG_FEAT 0x1 -#define ATA_REG_SC 0x2 -#define ATA_REG_SN 0x3 -#define ATA_REG_CL 0x4 -#define ATA_REG_CH 0x5 -#define ATA_REG_DH 0x6 -#define ATA_REG_DH_BASE 0xa0 -#define ATA_REG_DH_LBA 0x40 -#define ATA_REG_DH_DRV 0x10 -#define ATA_REG_CMD 0x7 -#define ATA_REG_ST 0x7 -#define ATA_REG_ST_BUSY 0x80 -#define ATA_REG_ST_RDY 0x40 -#define ATA_REG_ST_DWF 0x20 -#define ATA_REG_ST_DSC 0x10 -#define ATA_REG_ST_DRQ 0x08 -#define ATA_REG_ST_CORR 0x04 -#define ATA_REG_ST_ERR 0x01 -#define ATA_REG_ERR 0xd -#define ATA_REG_DC 0xe -#define ATA_REG_DC_IEN 0x02 -#define ATA_REG_DC_SRST 0x04 - -#define ATA_CMD_READ_SECTORS 0x20 -#define ATA_CMD_WRITE_SECTORS 0x30 -#define ATA_CMD_EXEC_DRIVE_DIAG 0x90 -#define ATA_CMD_READ_MULTIPLE 0xC4 -#define ATA_CMD_WRITE_MULTIPLE 0xC5 -#define ATA_CMD_SET_MULTIPLE 0xC6 -#define ATA_CMD_IDENTIFY_DRIVE 0xEC -#define ATA_CMD_SET_FEATURES 0xEF - -#define ATA_FEATURE_ENABLE_APM 0x05 -#define ATA_FEATURE_DISABLE_APM 0x85 -#define ATA_APM_DISABLED 0x00 -#define ATA_APM_MIN_POWER 0x01 -#define ATA_APM_WITH_STANDBY 0x7f -#define ATA_APM_WITHOUT_STANDBY 0x80 -#define ATA_APM_MAX_PERFORMANCE 0xfe - -#define CF_SECT_SIZE 0x200 -/* That is the ratio CF_SECT_SIZE/512 (the kernel sector size) */ -#define CF_KERNEL_MUL 1 -#define ATA_MAX_SECT_PER_CMD 0x100 - -#define CF_TRANS_FAILED 0 -#define CF_TRANS_OK 1 -#define CF_TRANS_IN_PROGRESS 2 - - -enum trans_state { - TS_IDLE = 0, - TS_AFTER_RESET, - TS_READY, - TS_CMD, - TS_TRANS -}; - -// -// #if DEBUG -// static unsigned long busy_time; -// #endif - -/** Struct to hold the cfdev -Actually, all the data here only has one instance. However, for -reasons of programming conformity, it is passed around as a pointer -*/ -struct cf_mips_dev { - void *base; /* base address for I/O */ - void *baddr; /* remapped address */ - - int pin; /* gpio pin */ - int irq; /* gpio irq */ - - unsigned head; - unsigned cyl; - unsigned spt; - unsigned sectors; - - unsigned short block_size; - unsigned dtype ; // ATA or CF - struct request_queue *queue; - struct gendisk *gd; - - /* Transaction state */ - enum trans_state tstate; - char *tbuf; - unsigned long tbuf_size; - sector_t tsect_start; - unsigned tsector_count; - unsigned tsectors_left; - int tread; - unsigned tcmd; - int async_mode; - unsigned long irq_enable_time; - - struct request *active_req; /* A request is being carried out. Is that different from tstate? */ - int users; - struct timer_list to_timer; - struct tasklet_struct tasklet; - - /** This lock ensures that the requests to this device are all done - atomically. Transfers can run in parallel, requests are all queued - one-by-one */ - spinlock_t lock; -}; - -int cf_do_transfer(struct cf_mips_dev* dev,sector_t sector, unsigned long nsect, - char* buffer, int is_write); -int cf_init(struct cf_mips_dev* dev); -void cf_cleanup(struct cf_mips_dev* dev); - -void cf_async_trans_done(struct cf_mips_dev* dev, int result); -// void *cf_get_next_buf(unsigned long *buf_size); - -#endif diff --git a/target/linux/rb532/files/drivers/block/rb500/bdev.c b/target/linux/rb532/files/drivers/block/rb500/bdev.c deleted file mode 100644 index f8a9b02d7..000000000 --- a/target/linux/rb532/files/drivers/block/rb500/bdev.c +++ /dev/null @@ -1,340 +0,0 @@ -/* CF-mips driver - This is a block driver for the direct (mmaped) interface to the CF-slot, - found in Routerboard.com's RB532 board - See SDK provided from routerboard.com. - - Module adapted By P.Christeas <p_christeas@yahoo.com>, 2005-6. - Cleaned up and adapted to platform_device by Felix Fietkau <nbd@openwrt.org> - - This work is redistributed under the terms of the GNU General Public License. -*/ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/time.h> -#include <linux/wait.h> -#include <linux/fs.h> -#include <linux/genhd.h> -#include <linux/blkdev.h> -#include <linux/blkpg.h> -#include <linux/hdreg.h> -#include <linux/platform_device.h> - -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/gpio.h> - -#include <asm/rc32434/rb.h> - -#ifdef DEBUG -#define DEBUGP printk -#define DLEVEL 1 -#else -#define DEBUGP(format, args...) -#define DLEVEL 0 -#endif - -#define CF_MIPS_MAJOR 13 -#define MAJOR_NR CF_MIPS_MAJOR -#define CF_MAX_PART 16 /* max 15 partitions */ - -#include "ata.h" - -//extern struct block_device_operations cf_bdops; - -// static struct hd_struct cf_parts[CF_MAX_PART]; -// static int cf_part_sizes[CF_MAX_PART]; -// static int cf_hsect_sizes[CF_MAX_PART]; -// static int cf_max_sectors[CF_MAX_PART]; -// static int cf_blksize_sizes[CF_MAX_PART]; - -// static spinlock_t lock = SPIN_LOCK_UNLOCKED; - -// volatile int cf_busy = 0; - -static struct request *active_req = NULL; - -static int cf_open (struct inode *, struct file *); -static int cf_release (struct inode *, struct file *); -static int cf_ioctl (struct inode *, struct file *, unsigned, unsigned long); - -static void cf_request(request_queue_t * q); -static int cf_transfer(const struct request *req); - -/*long (*unlocked_ioctl) (struct file *, unsigned, unsigned long); -long (*compat_ioctl) (struct file *, unsigned, unsigned long);*/ -// int (*direct_access) (struct block_device *, sector_t, unsigned long *); -// int (*media_changed) (struct gendisk *); -// int (*revalidate_disk) (struct gendisk *); - -static struct block_device_operations cf_bdops = { - .owner = THIS_MODULE, - .open = cf_open, - .release = cf_release, - .ioctl = cf_ioctl, - .media_changed = NULL, - .unlocked_ioctl = NULL, - .revalidate_disk = NULL, - .compat_ioctl = NULL, - .direct_access = NULL -}; - - -int cf_mips_probe(struct platform_device *pdev) -{ - struct gendisk* cf_gendisk=NULL; - struct cf_device *cdev = (struct cf_device *) pdev->dev.platform_data; - struct cf_mips_dev *dev; - struct resource *r; - int reg_result; - - reg_result = register_blkdev(MAJOR_NR, "cf-mips"); - if (reg_result < 0) { - printk(KERN_WARNING "cf-mips: can't get major %d\n", MAJOR_NR); - return reg_result; - } - - dev = (struct cf_mips_dev *)kmalloc(sizeof(struct cf_mips_dev),GFP_KERNEL); - if (!dev) - goto out_err; - memset(dev, 0, sizeof(struct cf_mips_dev)); - cdev->dev = dev; - - dev->pin = cdev->gpio_pin; - dev->irq = platform_get_irq_byname(pdev, "cf_irq"); - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cf_membase"); - dev->base = (void *) r->start; - - if (cf_init(dev)) goto out_err; - printk("init done"); - - spin_lock_init(&dev->lock); - dev->queue = blk_init_queue(cf_request,&dev->lock); - if (!dev->queue){ - printk(KERN_ERR "cf-mips: no mem for queue\n"); - goto out_err; - } - blk_queue_max_sectors(dev->queue,ATA_MAX_SECT_PER_CMD); - - /* For memory devices, it is always better to avoid crossing segments - inside the same request. */ -/* if (dev->dtype==0x848A){ - printk(KERN_INFO "Setting boundary for cf to 0x%x",(dev->block_size*512)-1); - blk_queue_segment_boundary(dev->queue, (dev->block_size*512)-1); - }*/ - - dev->gd = alloc_disk(CF_MAX_PART); - cf_gendisk = dev->gd; - cdev->gd = dev->gd; - if (!cf_gendisk) goto out_err; /* Last of these goto's */ - - cf_gendisk->major = MAJOR_NR; - cf_gendisk->first_minor = 0; - cf_gendisk->queue=dev->queue; - BUG_ON(cf_gendisk->minors != CF_MAX_PART); - strcpy(cf_gendisk->disk_name,"cfa"); - cf_gendisk->fops = &cf_bdops; - cf_gendisk->flags = 0 ; /* is not yet GENHD_FL_REMOVABLE */ - cf_gendisk->private_data=dev; - - set_capacity(cf_gendisk,dev->sectors * CF_KERNEL_MUL); - - /* Let the disk go live */ - add_disk(cf_gendisk); -#if 0 - result = cf_init(); - - /* default cfg for all partitions */ - memset(cf_parts, 0, sizeof (cf_parts[0]) * CF_MAX_PART); - memset(cf_part_sizes, 0, sizeof (cf_part_sizes[0]) * CF_MAX_PART); - for (i = 0; i < CF_MAX_PART; ++i) { - cf_hsect_sizes[i] = CF_SECT_SIZE; - cf_max_sectors[i] = ATA_MAX_SECT_PER_CMD; - cf_blksize_sizes[i] = BLOCK_SIZE; - } - - /* setup info for whole disk (partition 0) */ - cf_part_sizes[0] = cf_sectors / 2; - cf_parts[0].nr_sects = cf_sectors; - - blk_size[MAJOR_NR] = cf_part_sizes; - blksize_size[MAJOR_NR] = cf_blksize_sizes; - max_sectors[MAJOR_NR] = cf_max_sectors; - hardsect_size[MAJOR_NR] = cf_hsect_sizes; - read_ahead[MAJOR_NR] = 8; /* (4kB) */ - - blk_init_queue(BLK_DEFAULT_QUEUE(MAJOR_NR), DEVICE_REQUEST); - - add_gendisk(&cf_gendisk); -#endif -// printk(KERN_INFO "cf-mips partition check: \n"); -// register_disk(cf_gendisk, MKDEV(MAJOR_NR, 0), CF_MAX_PART, -// &cf_bdops, dev->sectors); - return 0; - -out_err: - if (dev->queue){ - blk_cleanup_queue(dev->queue); - } - if (reg_result) { - unregister_blkdev(MAJOR_NR, "cf-mips"); - return reg_result; - } - if (dev){ - cf_cleanup(dev); - kfree(dev); - } - return 1; -} - -static int -cf_mips_remove(struct platform_device *pdev) -{ - struct cf_device *cdev = (struct cf_device *) pdev->dev.platform_data; - struct cf_mips_dev *dev = (struct cf_mips_dev *) cdev->dev; - - unregister_blkdev(MAJOR_NR, "cf-mips"); - blk_cleanup_queue(dev->queue); - - del_gendisk(dev->gd); - cf_cleanup(dev); - return 0; -} - - -static struct platform_driver cf_driver = { - .driver.name = "rb500-cf", - .probe = cf_mips_probe, - .remove = cf_mips_remove, -}; - -static int __init cf_mips_init(void) -{ - printk(KERN_INFO "cf-mips module loaded\n"); - return platform_driver_register(&cf_driver); -} - -static void cf_mips_cleanup(void) -{ - platform_driver_unregister(&cf_driver); - printk(KERN_INFO "cf-mips module removed\n"); -} - -module_init(cf_mips_init); -module_exit(cf_mips_cleanup); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS_BLOCKDEV_MAJOR(CF_MIPS_MAJOR); - - -static int cf_open(struct inode *inode, struct file *filp) -{ - struct cf_mips_dev *dev=inode->i_bdev->bd_disk->private_data; - int minor = MINOR(inode->i_rdev); - - if (minor >= CF_MAX_PART) - return -ENODEV; - //DEBUGP(KERN_INFO "cf-mips module opened, minor %d\n", minor); - spin_lock(&dev->lock); - dev->users++; - spin_unlock(&dev->lock); - filp->private_data=dev; - - /* dirty workaround to set CFRDY GPIO as an input when some other - program sets it as an output */ - gpio_set_value(dev->pin, 0); - return 0; /* success */ -} - -static int cf_release(struct inode *inode, struct file *filp) -{ - int minor = MINOR(inode->i_rdev); - struct cf_mips_dev *dev=inode->i_bdev->bd_disk->private_data; - spin_lock(&dev->lock); - dev->users--; - spin_unlock(&dev->lock); - return 0; -} - -static int cf_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - unsigned minor = MINOR(inode->i_rdev); - struct cf_mips_dev *dev=inode->i_bdev->bd_disk->private_data; - - DEBUGP(KERN_INFO "cf_ioctl cmd %u\n", cmd); - switch (cmd) { - case BLKRRPART: /* re-read partition table */ - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - printk(KERN_INFO "cf-mips partition check: \n"); - register_disk(dev->gd); - return 0; - - case HDIO_GETGEO: - { - struct hd_geometry geo; - geo.cylinders = dev->cyl; - geo.heads = dev->head; - geo.sectors = dev->spt; - geo.start = (*dev->gd->part)[minor].start_sect; - if (copy_to_user((void *) arg, &geo, sizeof (geo))) - return -EFAULT; - } - return 0; - } - - return -EINVAL; /* unknown command */ -} - -static void cf_request(request_queue_t * q) -{ - struct cf_mips_dev* dev; - - struct request * req; - int status; - - /* We could have q->queuedata = dev , but haven't yet. */ - if (active_req) - return; - - while ((req=elv_next_request(q))!=NULL){ - dev=req->rq_disk->private_data; - status=cf_transfer(req); - if (status==CF_TRANS_IN_PROGRESS){ - active_req=req; - return; - } - end_request(req,status); - } -} - -static int cf_transfer(const struct request *req) -{ - struct cf_mips_dev* dev=req->rq_disk->private_data; - - if (!blk_fs_request(req)){ - if (printk_ratelimit()) - printk(KERN_WARNING "cf-mips: skipping non-fs request 0x%x\n",req->cmd[0]); - return CF_TRANS_FAILED; - } - - return cf_do_transfer(dev,req->sector,req->current_nr_sectors,req->buffer,rq_data_dir(req)); -} - -void cf_async_trans_done(struct cf_mips_dev * dev,int result) -{ - struct request *req; - - spin_lock(&dev->lock); - req=active_req; - active_req=NULL; - end_request(req,result); - spin_unlock(&dev->lock); - - spin_lock(&dev->lock); - cf_request(dev->queue); - spin_unlock(&dev->lock); -} - diff --git a/target/linux/rb532/files/drivers/char/watchdog/rc32434_wdt.c b/target/linux/rb532/files/drivers/char/watchdog/rc32434_wdt.c deleted file mode 100644 index 2266329de..000000000 --- a/target/linux/rb532/files/drivers/char/watchdog/rc32434_wdt.c +++ /dev/null @@ -1,240 +0,0 @@ -/* - * RC32434_WDT 0.01: IDT Interprise 79RC32434 watchdog driver - * Copyright (c) Ondrej Zajicek <santiago@crfreenet.org>, 2006 - * - * based on - * - * SoftDog 0.05: A Software Watchdog Device - * - * (c) Copyright 1996 Alan Cox <alan@redhat.com>, All Rights Reserved. - * - * 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/types.h> -#include <linux/kernel.h> -#include <linux/fs.h> -#include <linux/mm.h> -#include <linux/miscdevice.h> -#include <linux/watchdog.h> -#include <linux/reboot.h> -#include <linux/smp_lock.h> -#include <linux/init.h> -#include <asm/bootinfo.h> -#include <asm/time.h> -#include <asm/uaccess.h> -#include <asm/rc32434/integ.h> - -#define DEFAULT_TIMEOUT 15 /* (secs) Default is 15 seconds */ -#define MAX_TIMEOUT 20 -/* - * (secs) Max is 20 seconds - * (max frequency of counter is ~200 MHz, counter is 32-bit unsigned int) - */ - -#define NAME "rc32434_wdt" -#define VERSION "0.1" - -static INTEG_t rc_wdt = (INTEG_t) INTEG_VirtualAddress; - -static int expect_close = 0; -static int access = 0; -static int timeout = 0; - -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) ")"); -MODULE_LICENSE("GPL"); - - -static inline void start_wdt(void) -{ - rc_wdt -> wtcount = 0; - rc_wdt -> errcs |= ERRCS_wre_m; - rc_wdt -> wtc |= WTC_en_m; -} - -static inline void stop_wdt(void) -{ - rc_wdt -> wtc &= ~WTC_en_m; - rc_wdt -> errcs &= ~ERRCS_wre_m; -} - -static inline void set_wdt(int new_timeout) -{ - u32 cmp = new_timeout * mips_hpt_frequency; - u32 state; - - timeout = new_timeout; - /* - * store and disable WTC - */ - state = rc_wdt -> wtc & WTC_en_m; - rc_wdt -> wtc &= ~WTC_en_m; - - rc_wdt -> wtcount = 0; - rc_wdt -> wtcompare = cmp; - - /* - * restore WTC - */ - rc_wdt -> wtc |= state; -} - -static inline void update_wdt(void) -{ - rc_wdt -> wtcount = 0; -} - -/* - * Allow only one person to hold it open - */ - -static int wdt_open(struct inode *inode, struct file *file) -{ - if (access) - return -EBUSY; - if (nowayout) { - __module_get(THIS_MODULE); - } - /* - * Activate timer - */ - start_wdt(); - printk(KERN_INFO NAME ": enabling watchdog timer\n"); - access = 1; - return 0; -} - -static int wdt_release(struct inode *inode, struct file *file) -{ - /* - * Shut off the timer. - * Lock it in if it's a module and we set nowayout - */ - if (expect_close && nowayout == 0) { - stop_wdt (); - printk(KERN_INFO NAME ": disabling watchdog timer\n"); - module_put(THIS_MODULE); - } else { - printk (KERN_CRIT NAME ": device closed unexpectedly. WDT will not stop!\n"); - } - access = 0; - return 0; -} - -static ssize_t wdt_write(struct file *file, const char *data, size_t len, loff_t *ppos) -{ - /* - * Refresh the timer. - */ - 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 = 1; - } - } - update_wdt (); - return len; - } - return 0; -} - -static int wdt_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) -{ - int new_timeout; - static struct watchdog_info ident = { - .options = WDIOF_SETTIMEOUT | - WDIOF_KEEPALIVEPING | - WDIOF_MAGICCLOSE, - .firmware_version = 0, - .identity = "RC32434_WDT Watchdog", - }; - switch (cmd) { - default: - return -ENOTTY; - case WDIOC_GETSUPPORT: - if(copy_to_user((struct watchdog_info *)arg, &ident, sizeof(ident))) - return -EFAULT; - return 0; - case WDIOC_GETSTATUS: - case WDIOC_GETBOOTSTATUS: - return put_user(0,(int *)arg); - case WDIOC_KEEPALIVE: - update_wdt(); - return 0; - case WDIOC_SETTIMEOUT: - if (get_user(new_timeout, (int *)arg)) - return -EFAULT; - if (new_timeout < 1) - return -EINVAL; - if (new_timeout > MAX_TIMEOUT) - return -EINVAL; - set_wdt(new_timeout); - /* Fall */ - case WDIOC_GETTIMEOUT: - return put_user(timeout, (int *)arg); - } -} - -static struct file_operations wdt_fops = { - owner: THIS_MODULE, - llseek: no_llseek, - write: wdt_write, - ioctl: wdt_ioctl, - open: wdt_open, - release: wdt_release, -}; - -static struct miscdevice wdt_miscdev = { - minor: WATCHDOG_MINOR, - name: "watchdog", - fops: &wdt_fops, -}; - -static char banner[] __initdata = KERN_INFO NAME ": Watchdog Timer version " VERSION ", timer margin: %d sec\n"; - -static int __init watchdog_init(void) -{ - int ret; - - /* - * There should be check for RC32434 SoC - */ - if (mips_machgroup != MACH_GROUP_MIKROTIK) return -1; - - ret = misc_register(&wdt_miscdev); - - if (ret) - return ret; - - stop_wdt(); - set_wdt(DEFAULT_TIMEOUT); - - printk(banner, timeout); - - return 0; -} - -static void __exit watchdog_exit(void) -{ - misc_deregister(&wdt_miscdev); -} - -module_init(watchdog_init); -module_exit(watchdog_exit); diff --git a/target/linux/rb532/files/drivers/leds/leds-rb500.c b/target/linux/rb532/files/drivers/leds/leds-rb500.c deleted file mode 100644 index 3ab530a75..000000000 --- a/target/linux/rb532/files/drivers/leds/leds-rb500.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * linux/drivers/leds/leds-rb500.c - * - * Copyright (C) 2006 - * Twente Institute for Wireless and Mobile Communications BV - * - * 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 (see file GPLv2). - * - * Author: Tjalling Hattink <tjalling.hattink@ti-wmc.nl> - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/leds.h> -#include <asm/rc32434/rb.h> - -static void rb500led_amber_set(struct led_classdev *led_cdev, enum led_brightness value) -{ - if (value) - changeLatchU5(LO_ULED, 0); - else - changeLatchU5(0, LO_ULED); -} - -static struct led_classdev rb500_amber_led = { - .name = "rb500led:amber", - .default_trigger = "ide-disk", - .brightness_set = rb500led_amber_set, -}; - -static int rb500led_probe(struct platform_device *pdev) -{ - int ret; - - changeLatchU5(0, LO_ULED); - - ret = led_classdev_register(&pdev->dev, &rb500_amber_led); - - return ret; -} - -static int rb500led_remove(struct platform_device *pdev) -{ - led_classdev_unregister(&rb500_amber_led); - - return 0; -} - -static struct platform_driver rb500led_driver = { - .probe = rb500led_probe, - .remove = rb500led_remove, - .driver = { - .name = "rb500-led", - }, -}; - -static int __init rb500led_init(void) -{ - return platform_driver_register(&rb500led_driver); -} - -static void __exit rb500led_exit(void) -{ - platform_driver_unregister(&rb500led_driver); -} - -module_init(rb500led_init); -module_exit(rb500led_exit); - -MODULE_AUTHOR("tjalling.hattink@ti-wmc.nl"); -MODULE_DESCRIPTION("Mikrotik RB500 LED driver"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/rb532/files/drivers/net/korina.c b/target/linux/rb532/files/drivers/net/korina.c deleted file mode 100644 index e89f334cf..000000000 --- a/target/linux/rb532/files/drivers/net/korina.c +++ /dev/null @@ -1,1167 +0,0 @@ -/************************************************************************** - * - * BRIEF MODULE DESCRIPTION - * Driver for the IDT RC32434 on-chip ethernet controller. - * - * Copyright 2004 IDT Inc. (rischelp@idt.com) - * Copyright 2006 Felix Fietkau <nbd@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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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. - * - * - ************************************************************************** - * May 2004 rkt, neb - * - * Based on the driver developed by B. Maruthanayakam, H. Kou and others. - * - * Aug 2004 Sadik - * - * Added NAPI - * - ************************************************************************** - */ - -#include <linux/autoconf.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/moduleparam.h> -#include <linux/sched.h> -#include <linux/ctype.h> -#include <linux/types.h> -#include <linux/fcntl.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/proc_fs.h> -#include <linux/in.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> -#include <linux/errno.h> -#include <linux/platform_device.h> -#include <asm/bootinfo.h> -#include <asm/system.h> -#include <asm/bitops.h> -#include <asm/pgtable.h> -#include <asm/segment.h> -#include <asm/io.h> -#include <asm/dma.h> - -#include <asm/rc32434/rb.h> -#include "rc32434_eth.h" - -#define DRIVER_VERSION "(mar2904)" - -#define DRIVER_NAME "rc32434 Ethernet driver. " DRIVER_VERSION - -#define STATION_ADDRESS_HIGH(dev) (((dev)->dev_addr[0] << 8) | \ - ((dev)->dev_addr[1])) -#define STATION_ADDRESS_LOW(dev) (((dev)->dev_addr[2] << 24) | \ - ((dev)->dev_addr[3] << 16) | \ - ((dev)->dev_addr[4] << 8) | \ - ((dev)->dev_addr[5])) - -#define MII_CLOCK 1250000 /* no more than 2.5MHz */ -#define CONFIG_IDT_USE_NAPI 1 - - -static inline void rc32434_abort_tx(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - rc32434_abort_dma(dev, lp->tx_dma_regs); - -} - -static inline void rc32434_abort_rx(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - rc32434_abort_dma(dev, lp->rx_dma_regs); - -} - -static inline void rc32434_start_tx(struct rc32434_local *lp, volatile DMAD_t td) -{ - rc32434_start_dma(lp->tx_dma_regs, CPHYSADDR(td)); -} - -static inline void rc32434_start_rx(struct rc32434_local *lp, volatile DMAD_t rd) -{ - rc32434_start_dma(lp->rx_dma_regs, CPHYSADDR(rd)); -} - -static inline void rc32434_chain_tx(struct rc32434_local *lp, volatile DMAD_t td) -{ - rc32434_chain_dma(lp->tx_dma_regs, CPHYSADDR(td)); -} - -static inline void rc32434_chain_rx(struct rc32434_local *lp, volatile DMAD_t rd) -{ - rc32434_chain_dma(lp->rx_dma_regs, CPHYSADDR(rd)); -} - -#ifdef RC32434_PROC_DEBUG -static int rc32434_read_proc(char *buf, char **start, off_t fpos, - int length, int *eof, void *data) -{ - struct net_device *dev = (struct net_device *)data; - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - int len = 0; - - /* print out header */ - len += sprintf(buf + len, "\n\tKorina Ethernet Debug\n\n"); - len += sprintf (buf + len, - "DMA halt count = %10d, DMA run count = %10d\n", - lp->dma_halt_cnt, lp->dma_run_cnt); - - if (fpos >= len) { - *start = buf; - *eof = 1; - return 0; - } - *start = buf + fpos; - - if ((len -= fpos) > length) - return length; - *eof = 1; - - return len; - -} -#endif - - -/* - * Restart the RC32434 ethernet controller. - */ -static int rc32434_restart(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - - /* - * Disable interrupts - */ - disable_irq(lp->rx_irq); - disable_irq(lp->tx_irq); -#ifdef RC32434_REVISION - disable_irq(lp->ovr_irq); -#endif - disable_irq(lp->und_irq); - - /* Mask F E bit in Tx DMA */ - __raw_writel(__raw_readl(&lp->tx_dma_regs->dmasm) | DMASM_f_m | DMASM_e_m, &lp->tx_dma_regs->dmasm); - /* Mask D H E bit in Rx DMA */ - __raw_writel(__raw_readl(&lp->rx_dma_regs->dmasm) | DMASM_d_m | DMASM_h_m | DMASM_e_m, &lp->rx_dma_regs->dmasm); - - rc32434_init(dev); - rc32434_multicast_list(dev); - - enable_irq(lp->und_irq); -#ifdef RC32434_REVISION - enable_irq(lp->ovr_irq); -#endif - enable_irq(lp->tx_irq); - enable_irq(lp->rx_irq); - - return 0; -} - -static int rc32434_probe(struct platform_device *pdev) -{ - struct korina_device *bif = (struct korina_device *) pdev->dev.platform_data; - struct rc32434_local *lp = NULL; - struct net_device *dev = NULL; - struct resource *r; - int i, retval,err; - - dev = alloc_etherdev(sizeof(struct rc32434_local)); - if(!dev) { - ERR("Korina_eth: alloc_etherdev failed\n"); - return -1; - } - - platform_set_drvdata(pdev, dev); - SET_MODULE_OWNER(dev); - bif->dev = dev; - - memcpy(dev->dev_addr, bif->mac, 6); - - /* Initialize the device structure. */ - if (dev->priv == NULL) { - lp = (struct rc32434_local *)kmalloc(sizeof(*lp), GFP_KERNEL); - memset(lp, 0, sizeof(struct rc32434_local)); - } - else { - lp = (struct rc32434_local *)dev->priv; - } - - lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx"); - lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx"); - lp->ovr_irq = platform_get_irq_byname(pdev, "korina_ovr"); - lp->und_irq = platform_get_irq_byname(pdev, "korina_und"); - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_regs"); - dev->base_addr = r->start; - lp->eth_regs = ioremap_nocache(r->start, r->end - r->start); - if (!lp->eth_regs) { - ERR("Can't remap eth registers\n"); - retval = -ENXIO; - goto probe_err_out; - } - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_dma_rx"); - lp->rx_dma_regs = ioremap_nocache(r->start, r->end - r->start); - if (!lp->rx_dma_regs) { - ERR("Can't remap Rx DMA registers\n"); - retval = -ENXIO; - goto probe_err_out; - } - - r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "korina_dma_tx"); - lp->tx_dma_regs = ioremap_nocache(r->start, r->end - r->start); - if (!lp->tx_dma_regs) { - ERR("Can't remap Tx DMA registers\n"); - retval = -ENXIO; - goto probe_err_out; - } - -#ifdef RC32434_PROC_DEBUG - lp->ps = create_proc_read_entry (bif->name, 0, proc_net, - rc32434_read_proc, dev); -#endif - - lp->td_ring = (DMAD_t)kmalloc(TD_RING_SIZE + RD_RING_SIZE, GFP_KERNEL); - if (!lp->td_ring) { - ERR("Can't allocate descriptors\n"); - retval = -ENOMEM; - goto probe_err_out; - } - - dma_cache_inv((unsigned long)(lp->td_ring), TD_RING_SIZE + RD_RING_SIZE); - - /* now convert TD_RING pointer to KSEG1 */ - lp->td_ring = (DMAD_t )KSEG1ADDR(lp->td_ring); - lp->rd_ring = &lp->td_ring[RC32434_NUM_TDS]; - - - spin_lock_init(&lp->lock); - - /* just use the rx dma irq */ - dev->irq = lp->rx_irq; - - dev->priv = lp; - - dev->open = rc32434_open; - dev->stop = rc32434_close; - dev->hard_start_xmit = rc32434_send_packet; - dev->get_stats = rc32434_get_stats; - dev->set_multicast_list = &rc32434_multicast_list; - dev->tx_timeout = rc32434_tx_timeout; - dev->watchdog_timeo = RC32434_TX_TIMEOUT; - -#ifdef CONFIG_IDT_USE_NAPI - dev->poll = rc32434_poll; - dev->weight = 64; - printk("Using NAPI with weight %d\n",dev->weight); -#else - lp->rx_tasklet = kmalloc(sizeof(struct tasklet_struct), GFP_KERNEL); - tasklet_init(lp->rx_tasklet, rc32434_rx_tasklet, (unsigned long)dev); -#endif - lp->tx_tasklet = kmalloc(sizeof(struct tasklet_struct), GFP_KERNEL); - tasklet_init(lp->tx_tasklet, rc32434_tx_tasklet, (unsigned long)dev); - - if ((err = register_netdev(dev))) { - printk(KERN_ERR "rc32434 ethernet. Cannot register net device %d\n", err); - free_netdev(dev); - retval = -EINVAL; - goto probe_err_out; - } - - INFO("Rx IRQ %d, Tx IRQ %d, ", lp->rx_irq, lp->tx_irq); - for (i = 0; i < 6; i++) { - printk("%2.2x", dev->dev_addr[i]); - if (i<5) - printk(":"); - } - printk("\n"); - - return 0; - - probe_err_out: - rc32434_cleanup_module(); - ERR(" failed. Returns %d\n", retval); - return retval; - -} - -static int rc32434_remove(struct platform_device *pdev) -{ - struct korina_device *bif = (struct korina_device *) pdev->dev.platform_data; - - if (bif->dev != NULL) { - struct rc32434_local *lp = (struct rc32434_local *)bif->dev->priv; - if (lp != NULL) { - if (lp->eth_regs) - iounmap((void*)lp->eth_regs); - if (lp->rx_dma_regs) - iounmap((void*)lp->rx_dma_regs); - if (lp->tx_dma_regs) - iounmap((void*)lp->tx_dma_regs); - if (lp->td_ring) - kfree((void*)KSEG0ADDR(lp->td_ring)); - -#ifdef RC32434_PROC_DEBUG - if (lp->ps) { - remove_proc_entry(bif->name, proc_net); - } -#endif - kfree(lp); - } - - platform_set_drvdata(pdev, NULL); - unregister_netdev(bif->dev); - free_netdev(bif->dev); - kfree(bif->dev); - } - return 0; -} - - -static int rc32434_open(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - - /* Initialize */ - if (rc32434_init(dev)) { - ERR("Error: cannot open the Ethernet device\n"); - return -EAGAIN; - } - - /* Install the interrupt handler that handles the Done Finished Ovr and Und Events */ - if (request_irq(lp->rx_irq, &rc32434_rx_dma_interrupt, - SA_SHIRQ | SA_INTERRUPT, - "Korina ethernet Rx", dev)) { - ERR(": unable to get Rx DMA IRQ %d\n", - lp->rx_irq); - return -EAGAIN; - } - if (request_irq(lp->tx_irq, &rc32434_tx_dma_interrupt, - SA_SHIRQ | SA_INTERRUPT, - "Korina ethernet Tx", dev)) { - ERR(": unable to get Tx DMA IRQ %d\n", - lp->tx_irq); - free_irq(lp->rx_irq, dev); - return -EAGAIN; - } - -#ifdef RC32434_REVISION - /* Install handler for overrun error. */ - if (request_irq(lp->ovr_irq, &rc32434_ovr_interrupt, - SA_SHIRQ | SA_INTERRUPT, - "Ethernet Overflow", dev)) { - ERR(": unable to get OVR IRQ %d\n", - lp->ovr_irq); - free_irq(lp->rx_irq, dev); - free_irq(lp->tx_irq, dev); - return -EAGAIN; - } -#endif - - /* Install handler for underflow error. */ - if (request_irq(lp->und_irq, &rc32434_und_interrupt, - SA_SHIRQ | SA_INTERRUPT, - "Ethernet Underflow", dev)) { - ERR(": unable to get UND IRQ %d\n", - lp->und_irq); - free_irq(lp->rx_irq, dev); - free_irq(lp->tx_irq, dev); -#ifdef RC32434_REVISION - free_irq(lp->ovr_irq, dev); -#endif - return -EAGAIN; - } - - - return 0; -} - - - - -static int rc32434_close(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - u32 tmp; - - /* Disable interrupts */ - disable_irq(lp->rx_irq); - disable_irq(lp->tx_irq); -#ifdef RC32434_REVISION - disable_irq(lp->ovr_irq); -#endif - disable_irq(lp->und_irq); - - tmp = __raw_readl(&lp->tx_dma_regs->dmasm); - tmp = tmp | DMASM_f_m | DMASM_e_m; - __raw_writel(tmp, &lp->tx_dma_regs->dmasm); - - tmp = __raw_readl(&lp->rx_dma_regs->dmasm); - tmp = tmp | DMASM_d_m | DMASM_h_m | DMASM_e_m; - __raw_writel(tmp, &lp->rx_dma_regs->dmasm); - - free_irq(lp->rx_irq, dev); - free_irq(lp->tx_irq, dev); -#ifdef RC32434_REVISION - free_irq(lp->ovr_irq, dev); -#endif - free_irq(lp->und_irq, dev); - return 0; -} - - -/* transmit packet */ -static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - unsigned long flags; - u32 length; - DMAD_t td; - - - spin_lock_irqsave(&lp->lock, flags); - - td = &lp->td_ring[lp->tx_chain_tail]; - - /* stop queue when full, drop pkts if queue already full */ - if(lp->tx_count >= (RC32434_NUM_TDS - 2)) { - lp->tx_full = 1; - - if(lp->tx_count == (RC32434_NUM_TDS - 2)) { - netif_stop_queue(dev); - } - else { - lp->stats.tx_dropped++; - dev_kfree_skb_any(skb); - spin_unlock_irqrestore(&lp->lock, flags); - return 1; - } - } - - lp->tx_count ++; - - lp->tx_skb[lp->tx_chain_tail] = skb; - - length = skb->len; - dma_cache_wback((u32)skb->data, skb->len); - - /* Setup the transmit descriptor. */ - dma_cache_inv((u32) td, sizeof(*td)); - td->ca = CPHYSADDR(skb->data); - - if(__raw_readl(&(lp->tx_dma_regs->dmandptr)) == 0) { - if( lp->tx_chain_status == empty ) { - td->control = DMA_COUNT(length) |DMAD_cof_m |DMAD_iof_m; /* Update tail */ - lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ - __raw_writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), &(lp->tx_dma_regs->dmandptr)); /* Write to NDPTR */ - lp->tx_chain_head = lp->tx_chain_tail; /* Move head to tail */ - } - else { - td->control = DMA_COUNT(length) |DMAD_cof_m|DMAD_iof_m; /* Update tail */ - lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].control &= ~(DMAD_cof_m); /* Link to prev */ - lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].link = CPHYSADDR(td); /* Link to prev */ - lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ - __raw_writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), &(lp->tx_dma_regs->dmandptr)); /* Write to NDPTR */ - lp->tx_chain_head = lp->tx_chain_tail; /* Move head to tail */ - lp->tx_chain_status = empty; - } - } - else { - if( lp->tx_chain_status == empty ) { - td->control = DMA_COUNT(length) |DMAD_cof_m |DMAD_iof_m; /* Update tail */ - lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ - lp->tx_chain_status = filled; - } - else { - td->control = DMA_COUNT(length) |DMAD_cof_m |DMAD_iof_m; /* Update tail */ - lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].control &= ~(DMAD_cof_m); /* Link to prev */ - lp->td_ring[(lp->tx_chain_tail-1)& RC32434_TDS_MASK].link = CPHYSADDR(td); /* Link to prev */ - lp->tx_chain_tail = (lp->tx_chain_tail + 1) & RC32434_TDS_MASK; /* Move tail */ - } - } - dma_cache_wback((u32) td, sizeof(*td)); - - dev->trans_start = jiffies; - - spin_unlock_irqrestore(&lp->lock, flags); - - return 0; -} - - -/* Ethernet MII-PHY Handler */ -static void rc32434_mii_handler(unsigned long data) -{ - struct net_device *dev = (struct net_device *)data; - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - unsigned long flags; - unsigned long duplex_status; - int port_addr = (lp->rx_irq == 0x2c? 1:0) << 8; - - spin_lock_irqsave(&lp->lock, flags); - - /* Two ports are using the same MII, the difference is the PHY address */ - __raw_writel(0, &rc32434_eth0_regs->miimcfg); - __raw_writel(0, &rc32434_eth0_regs->miimcmd); - __raw_writel(port_addr |0x05, &rc32434_eth0_regs->miimaddr); - __raw_writel(MIIMCMD_scn_m, &rc32434_eth0_regs->miimcmd); - while(__raw_readl(&rc32434_eth0_regs->miimind) & MIIMIND_nv_m); - - ERR("irq:%x port_addr:%x RDD:%x\n", - lp->rx_irq, port_addr, __raw_readl(&rc32434_eth0_regs->miimrdd)); - duplex_status = (__raw_readl(&rc32434_eth0_regs->miimrdd) & 0x140)? ETHMAC2_fd_m: 0; - if(duplex_status != lp->duplex_mode) { - ERR("The MII-PHY is Auto-negotiated to %s-Duplex mode for Eth-%x\n", duplex_status? "Full":"Half", lp->rx_irq == 0x2c? 1:0); - lp->duplex_mode = duplex_status; - rc32434_restart(dev); - } - - lp->mii_phy_timer.expires = jiffies + 10 * HZ; - add_timer(&lp->mii_phy_timer); - - spin_unlock_irqrestore(&lp->lock, flags); - -} - -#ifdef RC32434_REVISION -/* Ethernet Rx Overflow interrupt */ -static irqreturn_t -rc32434_ovr_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *)dev_id; - struct rc32434_local *lp; - unsigned int ovr; - irqreturn_t retval = IRQ_NONE; - - ASSERT(dev != NULL); - - lp = (struct rc32434_local *)dev->priv; - spin_lock(&lp->lock); - ovr = __raw_readl(&lp->eth_regs->ethintfc); - - if(ovr & ETHINTFC_ovr_m) { - netif_stop_queue(dev); - - /* clear OVR bit */ - __raw_writel((ovr & ~ETHINTFC_ovr_m), &lp->eth_regs->ethintfc); - - /* Restart interface */ - rc32434_restart(dev); - retval = IRQ_HANDLED; - } - spin_unlock(&lp->lock); - - return retval; -} - -#endif - - -/* Ethernet Tx Underflow interrupt */ -static irqreturn_t -rc32434_und_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *)dev_id; - struct rc32434_local *lp; - unsigned int und; - irqreturn_t retval = IRQ_NONE; - - ASSERT(dev != NULL); - - lp = (struct rc32434_local *)dev->priv; - - spin_lock(&lp->lock); - - und = __raw_readl(&lp->eth_regs->ethintfc); - - if(und & ETHINTFC_und_m) { - netif_stop_queue(dev); - - __raw_writel((und & ~ETHINTFC_und_m), &lp->eth_regs->ethintfc); - - /* Restart interface */ - rc32434_restart(dev); - retval = IRQ_HANDLED; - } - - spin_unlock(&lp->lock); - - return retval; -} - - -/* Ethernet Rx DMA interrupt */ -static irqreturn_t -rc32434_rx_dma_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *)dev_id; - struct rc32434_local* lp; - volatile u32 dmas,dmasm; - irqreturn_t retval; - - ASSERT(dev != NULL); - - lp = (struct rc32434_local *)dev->priv; - - spin_lock(&lp->lock); - dmas = __raw_readl(&lp->rx_dma_regs->dmas); - if(dmas & (DMAS_d_m|DMAS_h_m|DMAS_e_m)) { - /* Mask D H E bit in Rx DMA */ - dmasm = __raw_readl(&lp->rx_dma_regs->dmasm); - __raw_writel(dmasm | (DMASM_d_m | DMASM_h_m | DMASM_e_m), &lp->rx_dma_regs->dmasm); -#ifdef CONFIG_IDT_USE_NAPI - if(netif_rx_schedule_prep(dev)) - __netif_rx_schedule(dev); -#else - tasklet_hi_schedule(lp->rx_tasklet); -#endif - - if (dmas & DMAS_e_m) - ERR(": DMA error\n"); - - retval = IRQ_HANDLED; - } - else - retval = IRQ_NONE; - - spin_unlock(&lp->lock); - return retval; -} - -#ifdef CONFIG_IDT_USE_NAPI -static int rc32434_poll(struct net_device *rx_data_dev, int *budget) -#else -static void rc32434_rx_tasklet(unsigned long rx_data_dev) -#endif -{ - struct net_device *dev = (struct net_device *)rx_data_dev; - struct rc32434_local* lp = netdev_priv(dev); - volatile DMAD_t rd = &lp->rd_ring[lp->rx_next_done]; - struct sk_buff *skb, *skb_new; - u8* pkt_buf; - u32 devcs, count, pkt_len, pktuncrc_len; - volatile u32 dmas; -#ifdef CONFIG_IDT_USE_NAPI - u32 received = 0; - int rx_work_limit = min(*budget,dev->quota); -#else - unsigned long flags; - spin_lock_irqsave(&lp->lock, flags); -#endif - - dma_cache_inv((u32)rd, sizeof(*rd)); - while ( (count = RC32434_RBSIZE - (u32)DMA_COUNT(rd->control)) != 0) { -#ifdef CONFIG_IDT_USE_NAPI - if(--rx_work_limit <0) - { - break; - } -#endif - /* init the var. used for the later operations within the while loop */ - skb_new = NULL; - devcs = rd->devcs; - pkt_len = RCVPKT_LENGTH(devcs); - skb = lp->rx_skb[lp->rx_next_done]; - - if (count < 64) { - lp->stats.rx_errors++; - lp->stats.rx_dropped++; - } - else if ((devcs & ( ETHRX_ld_m)) != ETHRX_ld_m) { - /* check that this is a whole packet */ - /* WARNING: DMA_FD bit incorrectly set in Rc32434 (errata ref #077) */ - lp->stats.rx_errors++; - lp->stats.rx_dropped++; - } - else if ( (devcs & ETHRX_rok_m) ) { - - { - /* must be the (first and) last descriptor then */ - pkt_buf = (u8*)lp->rx_skb[lp->rx_next_done]->data; - - pktuncrc_len = pkt_len - 4; - /* invalidate the cache */ - dma_cache_inv((unsigned long)pkt_buf, pktuncrc_len); - - /* Malloc up new buffer. */ - skb_new = dev_alloc_skb(RC32434_RBSIZE + 2); - - if (skb_new != NULL){ - /* Make room */ - skb_put(skb, pktuncrc_len); - - skb->protocol = eth_type_trans(skb, dev); - - /* pass the packet to upper layers */ -#ifdef CONFIG_IDT_USE_NAPI - netif_receive_skb(skb); -#else - netif_rx(skb); -#endif - - dev->last_rx = jiffies; - lp->stats.rx_packets++; - lp->stats.rx_bytes += pktuncrc_len; - - if (IS_RCV_MP(devcs)) - lp->stats.multicast++; - - /* 16 bit align */ - skb_reserve(skb_new, 2); - - skb_new->dev = dev; - lp->rx_skb[lp->rx_next_done] = skb_new; - } - else { - ERR("no memory, dropping rx packet.\n"); - lp->stats.rx_errors++; - lp->stats.rx_dropped++; - } - } - - } - else { - /* This should only happen if we enable accepting broken packets */ - lp->stats.rx_errors++; - lp->stats.rx_dropped++; - - /* add statistics counters */ - if (IS_RCV_CRC_ERR(devcs)) { - DBG(2, "RX CRC error\n"); - lp->stats.rx_crc_errors++; - } - else if (IS_RCV_LOR_ERR(devcs)) { - DBG(2, "RX LOR error\n"); - lp->stats.rx_length_errors++; - } - else if (IS_RCV_LE_ERR(devcs)) { - DBG(2, "RX LE error\n"); - lp->stats.rx_length_errors++; - } - else if (IS_RCV_OVR_ERR(devcs)) { - lp->stats.rx_over_errors++; - } - else if (IS_RCV_CV_ERR(devcs)) { - /* code violation */ - DBG(2, "RX CV error\n"); - lp->stats.rx_frame_errors++; - } - else if (IS_RCV_CES_ERR(devcs)) { - DBG(2, "RX Preamble error\n"); - } - } - - rd->devcs = 0; - - /* restore descriptor's curr_addr */ - if(skb_new) - rd->ca = CPHYSADDR(skb_new->data); - else - rd->ca = CPHYSADDR(skb->data); - - rd->control = DMA_COUNT(RC32434_RBSIZE) |DMAD_cod_m |DMAD_iod_m; - lp->rd_ring[(lp->rx_next_done-1)& RC32434_RDS_MASK].control &= ~(DMAD_cod_m); - - lp->rx_next_done = (lp->rx_next_done + 1) & RC32434_RDS_MASK; - dma_cache_wback((u32)rd, sizeof(*rd)); - rd = &lp->rd_ring[lp->rx_next_done]; - __raw_writel( ~DMAS_d_m, &lp->rx_dma_regs->dmas); - } -#ifdef CONFIG_IDT_USE_NAPI - dev->quota -= received; - *budget =- received; - if(rx_work_limit < 0) - goto not_done; -#endif - - dmas = __raw_readl(&lp->rx_dma_regs->dmas); - - if(dmas & DMAS_h_m) { - __raw_writel( ~(DMAS_h_m | DMAS_e_m), &lp->rx_dma_regs->dmas); -#ifdef RC32434_PROC_DEBUG - lp->dma_halt_cnt++; -#endif - rd->devcs = 0; - skb = lp->rx_skb[lp->rx_next_done]; - rd->ca = CPHYSADDR(skb->data); - dma_cache_wback((u32)rd, sizeof(*rd)); - rc32434_chain_rx(lp,rd); - } - -#ifdef CONFIG_IDT_USE_NAPI - netif_rx_complete(dev); -#endif - /* Enable D H E bit in Rx DMA */ - __raw_writel(__raw_readl(&lp->rx_dma_regs->dmasm) & ~(DMASM_d_m | DMASM_h_m |DMASM_e_m), &lp->rx_dma_regs->dmasm); -#ifdef CONFIG_IDT_USE_NAPI - return 0; - not_done: - return 1; -#else - spin_unlock_irqrestore(&lp->lock, flags); - return; -#endif - - -} - - - -/* Ethernet Tx DMA interrupt */ -static irqreturn_t -rc32434_tx_dma_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = (struct net_device *)dev_id; - struct rc32434_local *lp; - volatile u32 dmas,dmasm; - irqreturn_t retval; - - ASSERT(dev != NULL); - - lp = (struct rc32434_local *)dev->priv; - - spin_lock(&lp->lock); - - dmas = __raw_readl(&lp->tx_dma_regs->dmas); - - if (dmas & (DMAS_f_m | DMAS_e_m)) { - dmasm = __raw_readl(&lp->tx_dma_regs->dmasm); - /* Mask F E bit in Tx DMA */ - __raw_writel(dmasm | (DMASM_f_m | DMASM_e_m), &lp->tx_dma_regs->dmasm); - - tasklet_hi_schedule(lp->tx_tasklet); - - if(lp->tx_chain_status == filled && (__raw_readl(&(lp->tx_dma_regs->dmandptr)) == 0)) { - __raw_writel(CPHYSADDR(&lp->td_ring[lp->tx_chain_head]), &(lp->tx_dma_regs->dmandptr)); - lp->tx_chain_status = empty; - lp->tx_chain_head = lp->tx_chain_tail; - dev->trans_start = jiffies; - } - - if (dmas & DMAS_e_m) - ERR(": DMA error\n"); - - retval = IRQ_HANDLED; - } - else - retval = IRQ_NONE; - - spin_unlock(&lp->lock); - - return retval; -} - - -static void rc32434_tx_tasklet(unsigned long tx_data_dev) -{ - struct net_device *dev = (struct net_device *)tx_data_dev; - struct rc32434_local* lp = (struct rc32434_local *)dev->priv; - volatile DMAD_t td = &lp->td_ring[lp->tx_next_done]; - u32 devcs; - unsigned long flags; - volatile u32 dmas; - - spin_lock_irqsave(&lp->lock, flags); - - /* process all desc that are done */ - while(IS_DMA_FINISHED(td->control)) { - if(lp->tx_full == 1) { - netif_wake_queue(dev); - lp->tx_full = 0; - } - - devcs = lp->td_ring[lp->tx_next_done].devcs; - if ((devcs & (ETHTX_fd_m | ETHTX_ld_m)) != (ETHTX_fd_m | ETHTX_ld_m)) { - lp->stats.tx_errors++; - lp->stats.tx_dropped++; - - /* should never happen */ - DBG(1, __FUNCTION__ ": split tx ignored\n"); - } - else if (IS_TX_TOK(devcs)) { - lp->stats.tx_packets++; - lp->stats.tx_bytes+=lp->tx_skb[lp->tx_next_done]->len; - } - else { - lp->stats.tx_errors++; - lp->stats.tx_dropped++; - - /* underflow */ - if (IS_TX_UND_ERR(devcs)) - lp->stats.tx_fifo_errors++; - - /* oversized frame */ - if (IS_TX_OF_ERR(devcs)) - lp->stats.tx_aborted_errors++; - - /* excessive deferrals */ - if (IS_TX_ED_ERR(devcs)) - lp->stats.tx_carrier_errors++; - - /* collisions: medium busy */ - if (IS_TX_EC_ERR(devcs)) - lp->stats.collisions++; - - /* late collision */ - if (IS_TX_LC_ERR(devcs)) - lp->stats.tx_window_errors++; - - } - - /* We must always free the original skb */ - if (lp->tx_skb[lp->tx_next_done] != NULL) { - dev_kfree_skb_any(lp->tx_skb[lp->tx_next_done]); - lp->tx_skb[lp->tx_next_done] = NULL; - } - - lp->td_ring[lp->tx_next_done].control = DMAD_iof_m; - lp->td_ring[lp->tx_next_done].devcs = ETHTX_fd_m | ETHTX_ld_m; - lp->td_ring[lp->tx_next_done].link = 0; - lp->td_ring[lp->tx_next_done].ca = 0; - lp->tx_count --; - - /* go on to next transmission */ - lp->tx_next_done = (lp->tx_next_done + 1) & RC32434_TDS_MASK; - td = &lp->td_ring[lp->tx_next_done]; - - } - - dmas = __raw_readl(&lp->tx_dma_regs->dmas); - __raw_writel( ~dmas, &lp->tx_dma_regs->dmas); - - /* Enable F E bit in Tx DMA */ - __raw_writel(__raw_readl(&lp->tx_dma_regs->dmasm) & ~(DMASM_f_m | DMASM_e_m), &lp->tx_dma_regs->dmasm); - spin_unlock_irqrestore(&lp->lock, flags); - -} - - -static struct net_device_stats * rc32434_get_stats(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - return &lp->stats; -} - - -/* - * Set or clear the multicast filter for this adaptor. - */ -static void rc32434_multicast_list(struct net_device *dev) -{ - /* listen to broadcasts always and to treat */ - /* IFF bits independantly */ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - unsigned long flags; - u32 recognise = ETHARC_ab_m; /* always accept broadcasts */ - - if (dev->flags & IFF_PROMISC) /* set promiscuous mode */ - recognise |= ETHARC_pro_m; - - if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 15)) - recognise |= ETHARC_am_m; /* all multicast & bcast */ - else if (dev->mc_count > 0) { - DBG(2, __FUNCTION__ ": mc_count %d\n", dev->mc_count); - recognise |= ETHARC_am_m; /* for the time being */ - } - - spin_lock_irqsave(&lp->lock, flags); - __raw_writel(recognise, &lp->eth_regs->etharc); - spin_unlock_irqrestore(&lp->lock, flags); -} - - -static void rc32434_tx_timeout(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); - rc32434_restart(dev); - spin_unlock_irqrestore(&lp->lock, flags); - -} - - -/* - * Initialize the RC32434 ethernet controller. - */ -static int rc32434_init(struct net_device *dev) -{ - struct rc32434_local *lp = (struct rc32434_local *)dev->priv; - int i, j; - - /* Disable DMA */ - rc32434_abort_tx(dev); - rc32434_abort_rx(dev); - - /* reset ethernet logic */ - __raw_writel(0, &lp->eth_regs->ethintfc); - while((__raw_readl(&lp->eth_regs->ethintfc) & ETHINTFC_rip_m)) - dev->trans_start = jiffies; - - /* Enable Ethernet Interface */ - __raw_writel(ETHINTFC_en_m, &lp->eth_regs->ethintfc); - -#ifndef CONFIG_IDT_USE_NAPI - tasklet_disable(lp->rx_tasklet); -#endif - tasklet_disable(lp->tx_tasklet); - - /* Initialize the transmit Descriptors */ - for (i = 0; i < RC32434_NUM_TDS; i++) { - lp->td_ring[i].control = DMAD_iof_m; - lp->td_ring[i].devcs = ETHTX_fd_m | ETHTX_ld_m; - lp->td_ring[i].ca = 0; - lp->td_ring[i].link = 0; - if (lp->tx_skb[i] != NULL) { - dev_kfree_skb_any(lp->tx_skb[i]); - lp->tx_skb[i] = NULL; - } - } - lp->tx_next_done = lp->tx_chain_head = lp->tx_chain_tail = lp->tx_full = lp->tx_count = 0; - lp-> tx_chain_status = empty; - - /* - * Initialize the receive descriptors so that they - * become a circular linked list, ie. let the last - * descriptor point to the first again. - */ - for (i=0; i<RC32434_NUM_RDS; i++) { - struct sk_buff *skb = lp->rx_skb[i]; - - if (lp->rx_skb[i] == NULL) { - skb = dev_alloc_skb(RC32434_RBSIZE + 2); - if (skb == NULL) { - ERR("No memory in the system\n"); - for (j = 0; j < RC32434_NUM_RDS; j ++) - if (lp->rx_skb[j] != NULL) - dev_kfree_skb_any(lp->rx_skb[j]); - - return 1; - } - else { - skb->dev = dev; - skb_reserve(skb, 2); - lp->rx_skb[i] = skb; - lp->rd_ring[i].ca = CPHYSADDR(skb->data); - - } - } - lp->rd_ring[i].control = DMAD_iod_m | DMA_COUNT(RC32434_RBSIZE); - lp->rd_ring[i].devcs = 0; - lp->rd_ring[i].ca = CPHYSADDR(skb->data); - lp->rd_ring[i].link = CPHYSADDR(&lp->rd_ring[i+1]); - - } - /* loop back */ - lp->rd_ring[RC32434_NUM_RDS-1].link = CPHYSADDR(&lp->rd_ring[0]); - lp->rx_next_done = 0; - - lp->rd_ring[RC32434_NUM_RDS-1].control |= DMAD_cod_m; - lp->rx_chain_head = 0; - lp->rx_chain_tail = 0; - lp->rx_chain_status = empty; - - __raw_writel(0, &lp->rx_dma_regs->dmas); - /* Start Rx DMA */ - rc32434_start_rx(lp, &lp->rd_ring[0]); - - /* Enable F E bit in Tx DMA */ - __raw_writel(__raw_readl(&lp->tx_dma_regs->dmasm) & ~(DMASM_f_m | DMASM_e_m), &lp->tx_dma_regs->dmasm); - /* Enable D H E bit in Rx DMA */ - __raw_writel(__raw_readl(&lp->rx_dma_regs->dmasm) & ~(DMASM_d_m | DMASM_h_m | DMASM_e_m), &lp->rx_dma_regs->dmasm); - - /* Accept only packets destined for this Ethernet device address */ - __raw_writel(ETHARC_ab_m, &lp->eth_regs->etharc); - - /* Set all Ether station address registers to their initial values */ - __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal0); - __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah0); - - __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal1); - __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah1); - - __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal2); - __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah2); - - __raw_writel(STATION_ADDRESS_LOW(dev), &lp->eth_regs->ethsal3); - __raw_writel(STATION_ADDRESS_HIGH(dev), &lp->eth_regs->ethsah3); - - - /* Frame Length Checking, Pad Enable, CRC Enable, Full Duplex set */ - __raw_writel(ETHMAC2_pe_m | ETHMAC2_cen_m | ETHMAC2_fd_m, &lp->eth_regs->ethmac2); - //ETHMAC2_flc_m ETHMAC2_fd_m lp->duplex_mode - - /* Back to back inter-packet-gap */ - __raw_writel(0x15, &lp->eth_regs->ethipgt); - /* Non - Back to back inter-packet-gap */ - __raw_writel(0x12, &lp->eth_regs->ethipgr); - - /* Management Clock Prescaler Divisor */ - /* Clock independent setting */ - __raw_writel(((idt_cpu_freq)/MII_CLOCK+1) & ~1, - &lp->eth_regs->ethmcp); - - /* don't transmit until fifo contains 48b */ - __raw_writel(48, &lp->eth_regs->ethfifott); - - __raw_writel(ETHMAC1_re_m, &lp->eth_regs->ethmac1); - -#ifndef CONFIG_IDT_USE_NAPI - tasklet_enable(lp->rx_tasklet); -#endif - tasklet_enable(lp->tx_tasklet); - - netif_start_queue(dev); - - return 0; -} - -static struct platform_driver korina_driver = { - .driver.name = "korina", - .probe = rc32434_probe, - .remove = rc32434_remove, -}; - -static int __init rc32434_init_module(void) -{ - return platform_driver_register(&korina_driver); -} - -static void rc32434_cleanup_module(void) -{ - return platform_driver_unregister(&korina_driver); -} - -module_init(rc32434_init_module); -module_exit(rc32434_cleanup_module); diff --git a/target/linux/rb532/files/drivers/net/rc32434_eth.h b/target/linux/rb532/files/drivers/net/rc32434_eth.h deleted file mode 100644 index eaa0bfe51..000000000 --- a/target/linux/rb532/files/drivers/net/rc32434_eth.h +++ /dev/null @@ -1,178 +0,0 @@ -/************************************************************************** - * - * BRIEF MODULE DESCRIPTION - * Definitions for IDT RC32434 on-chip ethernet controller. - * - * Copyright 2004 IDT Inc. (rischelp@idt.com) - * - * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * 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. - * - * - ************************************************************************** - * May 2004 rkt, neb - * - * Initial Release - * - * Aug 2004 - * - * Added NAPI - * - ************************************************************************** - */ - - -#include <asm/rc32434/rc32434.h> -#include <asm/rc32434/dma_v.h> -#include <asm/rc32434/eth_v.h> - -#define CONFIG_IDT_USE_NAPI 1 -#define RC32434_DEBUG 2 -//#define RC32434_PROC_DEBUG -#undef RC32434_DEBUG - -#ifdef RC32434_DEBUG - -/* use 0 for production, 1 for verification, >2 for debug */ -static int rc32434_debug = RC32434_DEBUG; -#define ASSERT(expr) \ - if(!(expr)) { \ - printk( "Assertion failed! %s,%s,%s,line=%d\n", \ - #expr,__FILE__,__FUNCTION__,__LINE__); } -#define DBG(lvl, format, arg...) if (rc32434_debug > lvl) printk(KERN_INFO "%s: " format, dev->name , ## arg) -#else -#define ASSERT(expr) do {} while (0) -#define DBG(lvl, format, arg...) do {} while (0) -#endif - -#define INFO(format, arg...) printk(KERN_INFO "%s: " format, dev->name , ## arg) -#define ERR(format, arg...) printk(KERN_ERR "%s: " format, dev->name , ## arg) -#define WARN(format, arg...) printk(KERN_WARNING "%s: " format, dev->name , ## arg) - -/* the following must be powers of two */ -#ifdef CONFIG_IDT_USE_NAPI -#define RC32434_NUM_RDS 64 /* number of receive descriptors */ -#define RC32434_NUM_TDS 64 /* number of transmit descriptors */ -#else -#define RC32434_NUM_RDS 128 /* number of receive descriptors */ -#define RC32434_NUM_TDS 128 /* number of transmit descriptors */ -#endif - -#define RC32434_RBSIZE 1536 /* size of one resource buffer = Ether MTU */ -#define RC32434_RDS_MASK (RC32434_NUM_RDS-1) -#define RC32434_TDS_MASK (RC32434_NUM_TDS-1) -#define RD_RING_SIZE (RC32434_NUM_RDS * sizeof(struct DMAD_s)) -#define TD_RING_SIZE (RC32434_NUM_TDS * sizeof(struct DMAD_s)) - -#define RC32434_TX_TIMEOUT HZ * 100 - -#define rc32434_eth0_regs ((ETH_t)(ETH0_VirtualAddress)) -#define rc32434_eth1_regs ((ETH_t)(ETH1_VirtualAddress)) - -enum status { filled, empty}; -#define IS_DMA_FINISHED(X) (((X) & (DMAD_f_m)) != 0) -#define IS_DMA_DONE(X) (((X) & (DMAD_d_m)) != 0) - - -/* Information that need to be kept for each board. */ -struct rc32434_local { - ETH_t eth_regs; - DMA_Chan_t rx_dma_regs; - DMA_Chan_t tx_dma_regs; - volatile DMAD_t td_ring; /* transmit descriptor ring */ - volatile DMAD_t rd_ring; /* receive descriptor ring */ - - struct sk_buff* tx_skb[RC32434_NUM_TDS]; /* skbuffs for pkt to trans */ - struct sk_buff* rx_skb[RC32434_NUM_RDS]; /* skbuffs for pkt to trans */ - -#ifndef CONFIG_IDT_USE_NAPI - struct tasklet_struct * rx_tasklet; -#endif - struct tasklet_struct * tx_tasklet; - - int rx_next_done; - int rx_chain_head; - int rx_chain_tail; - enum status rx_chain_status; - - int tx_next_done; - int tx_chain_head; - int tx_chain_tail; - enum status tx_chain_status; - int tx_count; - int tx_full; - - struct timer_list mii_phy_timer; - unsigned long duplex_mode; - - int rx_irq; - int tx_irq; - int ovr_irq; - int und_irq; - - struct net_device_stats stats; - spinlock_t lock; - - /* debug /proc entry */ - struct proc_dir_entry *ps; - int dma_halt_cnt; int dma_run_cnt; -}; - -extern unsigned int idt_cpu_freq; - -/* Index to functions, as function prototypes. */ -static int rc32434_open(struct net_device *dev); -static int rc32434_send_packet(struct sk_buff *skb, struct net_device *dev); -static void rc32434_mii_handler(unsigned long data); -static irqreturn_t rc32434_und_interrupt(int irq, void *dev_id); -static irqreturn_t rc32434_rx_dma_interrupt(int irq, void *dev_id); -static irqreturn_t rc32434_tx_dma_interrupt(int irq, void *dev_id); -#ifdef RC32434_REVISION -static irqreturn_t rc32434_ovr_interrupt(int irq, void *dev_id); -#endif -static int rc32434_close(struct net_device *dev); -static struct net_device_stats *rc32434_get_stats(struct net_device *dev); -static void rc32434_multicast_list(struct net_device *dev); -static int rc32434_init(struct net_device *dev); -static void rc32434_tx_timeout(struct net_device *dev); - -static void rc32434_tx_tasklet(unsigned long tx_data_dev); -#ifdef CONFIG_IDT_USE_NAPI -static int rc32434_poll(struct net_device *rx_data_dev, int *budget); -#else -static void rc32434_rx_tasklet(unsigned long rx_data_dev); -#endif -static void rc32434_cleanup_module(void); - - -static inline void rc32434_abort_dma(struct net_device *dev, DMA_Chan_t ch) -{ - if (__raw_readl(&ch->dmac) & DMAC_run_m) { - __raw_writel(0x10, &ch->dmac); - - while (!(__raw_readl(&ch->dmas) & DMAS_h_m)) - dev->trans_start = jiffies; - - __raw_writel(0, &ch->dmas); - } - - __raw_writel(0, &ch->dmadptr); - __raw_writel(0, &ch->dmandptr); -} |