diff options
Diffstat (limited to 'target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c')
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c new file mode 100644 index 0000000..c88c522 --- /dev/null +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-rb922.c @@ -0,0 +1,236 @@ +/* + * 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 <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); +} + +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 } } +}; + +static int rb922gs_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 = &rb922gs_nand_ecclayout; + } + + 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 = "rootfs", + .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); + 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); |