/* * MikroTik RouterBOARD 91X support * * Copyright (C) 2015 Gabor Juhos <juhosg@openwrt.org> * * 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. */ #include <linux/phy.h> #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/ath9k_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/routerboot.h> #include <linux/gpio.h> #include <linux/platform_data/phy-at803x.h> #include <linux/version.h> #include <asm/prom.h> #include <asm/mach-ath79/ath79.h> #include <asm/mach-ath79/ar71xx_regs.h> #include "common.h" #include "dev-gpio-buttons.h" #include "dev-eth.h" #include "dev-leds-gpio.h" #include "dev-m25p80.h" #include "dev-nfc.h" #include "dev-usb.h" #include "dev-spi.h" #include "machtypes.h" #include "pci.h" #include "routerboot.h" #define RB922_GPIO_LED_USR 12 #define RB922_GPIO_USB_POWER 13 #define RB922_GPIO_FAN_CTRL 14 #define RB922_GPIO_BTN_RESET 20 #define RB922_GPIO_NAND_NCE 23 #define RB922_PHY_ADDR 4 #define RB922_KEYS_POLL_INTERVAL 20 /* msecs */ #define RB922_KEYS_DEBOUNCE_INTERVAL (3 * RB922_KEYS_POLL_INTERVAL) #define RB_ROUTERBOOT_OFFSET 0x0000 #define RB_ROUTERBOOT_MIN_SIZE 0xb000 #define RB_HARD_CFG_SIZE 0x1000 #define RB_BIOS_OFFSET 0xd000 #define RB_BIOS_SIZE 0x1000 #define RB_SOFT_CFG_OFFSET 0xf000 #define RB_SOFT_CFG_SIZE 0x1000 static struct mtd_partition rb922gs_spi_partitions[] = { { .name = "routerboot", .offset = RB_ROUTERBOOT_OFFSET, .mask_flags = MTD_WRITEABLE, }, { .name = "hard_config", .size = RB_HARD_CFG_SIZE, .mask_flags = MTD_WRITEABLE, }, { .name = "bios", .offset = RB_BIOS_OFFSET, .size = RB_BIOS_SIZE, .mask_flags = MTD_WRITEABLE, }, { .name = "soft_config", .size = RB_SOFT_CFG_SIZE, } }; static struct flash_platform_data rb922gs_spi_flash_data = { .parts = rb922gs_spi_partitions, .nr_parts = ARRAY_SIZE(rb922gs_spi_partitions), }; static struct gpio_led rb922gs_leds[] __initdata = { { .name = "rb:green:user", .gpio = RB922_GPIO_LED_USR, .active_low = 1, }, }; static struct gpio_keys_button rb922gs_gpio_keys[] __initdata = { { .desc = "Reset button", .type = EV_KEY, .code = KEY_RESTART, .debounce_interval = RB922_KEYS_DEBOUNCE_INTERVAL, .gpio = RB922_GPIO_BTN_RESET, .active_low = 1, }, }; static struct at803x_platform_data rb922gs_at803x_data = { .disable_smarteee = 1, }; static struct mdio_board_info rb922gs_mdio0_info[] = { { .bus_id = "ag71xx-mdio.0", .phy_addr = RB922_PHY_ADDR, .platform_data = &rb922gs_at803x_data, }, }; static void __init rb922gs_init_partitions(const struct rb_info *info) { rb922gs_spi_partitions[0].size = info->hard_cfg_offs; rb922gs_spi_partitions[1].offset = info->hard_cfg_offs; rb922gs_spi_partitions[3].offset = info->soft_cfg_offs; } static void rb922gs_nand_select_chip(int chip_no) { switch (chip_no) { case 0: gpio_set_value(RB922_GPIO_NAND_NCE, 0); break; default: gpio_set_value(RB922_GPIO_NAND_NCE, 1); break; } ndelay(500); } #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) static struct nand_ecclayout rb922gs_nand_ecclayout = { .eccbytes = 6, .eccpos = { 8, 9, 10, 13, 14, 15 }, .oobavail = 9, .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } }; #else static int rb922gs_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *oobregion) { switch (section) { case 0: oobregion->offset = 8; oobregion->length = 3; return 0; case 1: oobregion->offset = 13; oobregion->length = 3; return 0; default: return -ERANGE; } } static int rb922gs_ooblayout_free(struct mtd_info *mtd, int section, struct mtd_oob_region *oobregion) { switch (section) { case 0: oobregion->offset = 0; oobregion->length = 4; return 0; case 1: oobregion->offset = 4; oobregion->length = 1; return 0; case 2: oobregion->offset = 6; oobregion->length = 2; return 0; case 3: oobregion->offset = 11; oobregion->length = 2; return 0; default: return -ERANGE; } } static const struct mtd_ooblayout_ops rb922gs_nand_ecclayout_ops = { .ecc = rb922gs_ooblayout_ecc, .free = rb922gs_ooblayout_free, }; #endif /* < 4.6 */ static int rb922gs_nand_scan_fixup(struct mtd_info *mtd) { #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) struct nand_chip *chip = mtd->priv; #else struct nand_chip *chip = mtd_to_nand(mtd); #endif /* < 4.6.0 */ if (mtd->writesize == 512) { /* * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot * will not be able to find the kernel that we load. */ #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0) chip->ecc.layout = &rb922gs_nand_ecclayout; #else mtd_set_ooblayout(mtd, &rb922gs_nand_ecclayout_ops); #endif } chip->options = NAND_NO_SUBPAGE_WRITE; return 0; } static struct mtd_partition rb922gs_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 = "ubi", .offset = MTDPART_OFS_NXTBLK, .size = MTDPART_SIZ_FULL, }, }; static void __init rb922gs_nand_init(void) { gpio_request_one(RB922_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE"); ath79_nfc_set_scan_fixup(rb922gs_nand_scan_fixup); ath79_nfc_set_parts(rb922gs_nand_partitions, ARRAY_SIZE(rb922gs_nand_partitions)); ath79_nfc_set_select_chip(rb922gs_nand_select_chip); ath79_nfc_set_swap_dma(true); ath79_register_nfc(); } static void __init rb922gs_setup(void) { const struct rb_info *info; char buf[64]; info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000); if (!info) return; scnprintf(buf, sizeof(buf), "MikroTik RouterBOARD %s", (info->board_name) ? info->board_name : ""); mips_set_machine_name(buf); rb922gs_init_partitions(info); ath79_register_m25p80(&rb922gs_spi_flash_data); rb922gs_nand_init(); ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN); ath79_register_mdio(0, 0x0); mdiobus_register_board_info(rb922gs_mdio0_info, ARRAY_SIZE(rb922gs_mdio0_info)); ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0); ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev; ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII; ath79_eth0_data.phy_mask = BIT(RB922_PHY_ADDR); if (strcmp(info->board_name, "921GS-5HPacD r2") == 0) { ath79_eth0_pll_data.pll_10 = 0xa0001313; ath79_eth0_pll_data.pll_100 = 0xa0000101; ath79_eth0_pll_data.pll_1000 = 0x8f000000; } else { ath79_eth0_pll_data.pll_10 = 0x81001313; ath79_eth0_pll_data.pll_100 = 0x81000101; ath79_eth0_pll_data.pll_1000 = 0x8f000000; } ath79_register_eth(0); ath79_register_pci(); ath79_register_leds_gpio(-1, ARRAY_SIZE(rb922gs_leds), rb922gs_leds); ath79_register_gpio_keys_polled(-1, RB922_KEYS_POLL_INTERVAL, ARRAY_SIZE(rb922gs_gpio_keys), rb922gs_gpio_keys); /* NOTE: * This only supports the RB911G-5HPacD board for now. For other boards * more devices must be registered based on the hardware options which * can be found in the hardware configuration of RouterBOOT. */ } MIPS_MACHINE_NONAME(ATH79_MACH_RB_922GS, "922gs", rb922gs_setup);