diff options
Diffstat (limited to 'target/linux/ar71xx/files/arch')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c new file mode 100644 index 000000000..f59c14c53 --- /dev/null +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c @@ -0,0 +1,214 @@ +/* + * MikroTik RouterBOARD 95X support + * + * Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be> + * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2013 Kamil Trzcinski <ayufan@ayufan.eu> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#define pr_fmt(fmt) "rb95x: " fmt + +#include <linux/phy.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <linux/ath9k_platform.h> +#include <linux/ar8216_platform.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/rle.h> +#include <linux/routerboot.h> +#include <linux/gpio.h> + +#include <asm/mach-ath79/ath79.h> +#include <asm/mach-ath79/ar71xx_regs.h> + +#include "common.h" +#include "dev-eth.h" +#include "dev-m25p80.h" +#include "dev-nfc.h" +#include "dev-usb.h" +#include "dev-wmac.h" +#include "machtypes.h" +#include "routerboot.h" + +#define RB95X_GPIO_NAND_NCE 14 + +#define RB_ROUTERBOOT_OFFSET 0x0000 +#define RB_ROUTERBOOT_SIZE 0xb000 +#define RB_HARD_CFG_OFFSET 0xc000 +#define RB_HARD_CFG_SIZE 0x1000 +#define RB_BIOS_OFFSET 0xd000 +#define RB_BIOS_SIZE 0x2000 +#define RB_SOFT_CFG_OFFSET 0xe000 +#define RB_SOFT_CFG_SIZE 0x1000 + +#define RB_ART_SIZE 0x10000 + +static struct mtd_partition rb95x_nand_partitions[] = { + { + .name = "booter", + .offset = 0, + .size = (256 * 1024), + .mask_flags = MTD_WRITEABLE, + }, + { + .name = "kernel", + .offset = (256 * 1024), + .size = (4 * 1024 * 1024) - (256 * 1024), + }, + { + .name = "rootfs", + .offset = MTDPART_OFS_NXTBLK, + .size = MTDPART_SIZ_FULL, + }, +}; + +static struct ar8327_pad_cfg rb95x_ar8327_pad0_cfg = { + .mode = AR8327_PAD_MAC_RGMII, + .txclk_delay_en = true, + .rxclk_delay_en = true, + .txclk_delay_sel = AR8327_CLK_DELAY_SEL1, + .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2, +}; + +static struct ar8327_platform_data rb95x_ar8327_data = { + .pad0_cfg = &rb95x_ar8327_pad0_cfg, + .port0_cfg = { + .force_link = 1, + .speed = AR8327_PORT_SPEED_1000, + .duplex = 1, + .txpause = 1, + .rxpause = 1, + } +}; + +static struct mdio_board_info rb95x_mdio0_info[] = { + { + .bus_id = "ag71xx-mdio.0", + .phy_addr = 0, + .platform_data = &rb95x_ar8327_data, + }, +}; + +void __init rb95x_wlan_init(void) +{ + u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000 + RB_HARD_CFG_OFFSET); + u16 tag_len; + u8 *tag; + char *art_buf; + u8 wlan_mac[ETH_ALEN]; + int err; + + err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA, + &tag, &tag_len); + if (err) { + pr_err("no calibration data found\n"); + return; + } + + art_buf = kmalloc(RB_ART_SIZE, GFP_KERNEL); + if (art_buf == NULL) { + pr_err("no memory for calibration data\n"); + return; + } + + err = rle_decode((char *) tag, tag_len, art_buf, RB_ART_SIZE, + NULL, NULL); + if (err) { + pr_err("unable to decode calibration data\n"); + goto free; + } + + ath79_init_mac(wlan_mac, ath79_mac_base, 11); + ath79_register_wmac(art_buf + 0x1000, wlan_mac); + +free: + kfree(art_buf); +} + +static void rb95x_nand_select_chip(int chip_no) +{ + switch (chip_no) { + case 0: + gpio_set_value(RB95X_GPIO_NAND_NCE, 0); + break; + default: + gpio_set_value(RB95X_GPIO_NAND_NCE, 1); + break; + } + ndelay(500); +} + +static struct nand_ecclayout rb95x_nand_ecclayout = { + .eccbytes = 6, + .eccpos = { 8, 9, 10, 13, 14, 15 }, + .oobavail = 9, + .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } +}; + +static int rb95x_nand_scan_fixup(struct mtd_info *mtd) +{ + struct nand_chip *chip = mtd->priv; + + if (mtd->writesize == 512) { + /* + * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot + * will not be able to find the kernel that we load. + */ + chip->ecc.layout = &rb95x_nand_ecclayout; + } + + return 0; +} + +void __init rb95x_nand_init(void) +{ + ath79_nfc_set_scan_fixup(rb95x_nand_scan_fixup); + ath79_nfc_set_parts(rb95x_nand_partitions, + ARRAY_SIZE(rb95x_nand_partitions)); + ath79_nfc_set_select_chip(rb95x_nand_select_chip); + ath79_nfc_set_swap_dma(true); + ath79_register_nfc(); +} + +void __init rb95x_gpio_init(void) +{ + gpio_request_one(RB95X_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE"); +} + +static void __init rb95x_setup(void) +{ + rb95x_gpio_init(); + rb95x_nand_init(); + + ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 | + AR934X_ETH_CFG_SW_ONLY_MODE); + + ath79_register_mdio(0, 0x0); + + mdiobus_register_board_info(rb95x_mdio0_info, + ARRAY_SIZE(rb95x_mdio0_info)); + + ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0); + ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII; + ath79_eth0_data.phy_mask = BIT(0); + + ath79_register_eth(0); +} + +static void __init rb951g_setup(void) +{ + rb95x_setup(); + rb95x_wlan_init(); + ath79_register_usb(); +} + +MIPS_MACHINE(ATH79_MACH_RB_951G, "951G", "MikroTik RouterBOARD 951G-2HnD", + rb951g_setup); |