2 * MikroTik RouterBOARD 91X support
4 * Copyright (C) 2015 Gabor Juhos <juhosg@openwrt.org>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
11 #include <linux/phy.h>
12 #include <linux/delay.h>
13 #include <linux/platform_device.h>
14 #include <linux/ath9k_platform.h>
15 #include <linux/mtd/mtd.h>
16 #include <linux/mtd/nand.h>
17 #include <linux/mtd/partitions.h>
18 #include <linux/spi/spi.h>
19 #include <linux/spi/flash.h>
20 #include <linux/routerboot.h>
21 #include <linux/gpio.h>
22 #include <linux/platform_data/phy-at803x.h>
25 #include <asm/mach-ath79/ath79.h>
26 #include <asm/mach-ath79/ar71xx_regs.h>
29 #include "dev-gpio-buttons.h"
31 #include "dev-leds-gpio.h"
32 #include "dev-m25p80.h"
36 #include "machtypes.h"
38 #include "routerboot.h"
40 #define RB922_GPIO_LED_USR 12
41 #define RB922_GPIO_USB_POWER 13
42 #define RB922_GPIO_FAN_CTRL 14
43 #define RB922_GPIO_BTN_RESET 20
44 #define RB922_GPIO_NAND_NCE 23
46 #define RB922_PHY_ADDR 4
48 #define RB922_KEYS_POLL_INTERVAL 20 /* msecs */
49 #define RB922_KEYS_DEBOUNCE_INTERVAL (3 * RB922_KEYS_POLL_INTERVAL)
51 #define RB_ROUTERBOOT_OFFSET 0x0000
52 #define RB_ROUTERBOOT_MIN_SIZE 0xb000
53 #define RB_HARD_CFG_SIZE 0x1000
54 #define RB_BIOS_OFFSET 0xd000
55 #define RB_BIOS_SIZE 0x1000
56 #define RB_SOFT_CFG_OFFSET 0xf000
57 #define RB_SOFT_CFG_SIZE 0x1000
59 static struct mtd_partition rb922gs_spi_partitions[] = {
62 .offset = RB_ROUTERBOOT_OFFSET,
63 .mask_flags = MTD_WRITEABLE,
65 .name = "hard_config",
66 .size = RB_HARD_CFG_SIZE,
67 .mask_flags = MTD_WRITEABLE,
70 .offset = RB_BIOS_OFFSET,
72 .mask_flags = MTD_WRITEABLE,
74 .name = "soft_config",
75 .size = RB_SOFT_CFG_SIZE,
79 static struct flash_platform_data rb922gs_spi_flash_data = {
80 .parts = rb922gs_spi_partitions,
81 .nr_parts = ARRAY_SIZE(rb922gs_spi_partitions),
84 static struct gpio_led rb922gs_leds[] __initdata = {
86 .name = "rb:green:user",
87 .gpio = RB922_GPIO_LED_USR,
92 static struct gpio_keys_button rb922gs_gpio_keys[] __initdata = {
94 .desc = "Reset button",
97 .debounce_interval = RB922_KEYS_DEBOUNCE_INTERVAL,
98 .gpio = RB922_GPIO_BTN_RESET,
103 static struct at803x_platform_data rb922gs_at803x_data = {
104 .disable_smarteee = 1,
107 static struct mdio_board_info rb922gs_mdio0_info[] = {
109 .bus_id = "ag71xx-mdio.0",
110 .phy_addr = RB922_PHY_ADDR,
111 .platform_data = &rb922gs_at803x_data,
115 static void __init rb922gs_init_partitions(const struct rb_info *info)
117 rb922gs_spi_partitions[0].size = info->hard_cfg_offs;
118 rb922gs_spi_partitions[1].offset = info->hard_cfg_offs;
119 rb922gs_spi_partitions[3].offset = info->soft_cfg_offs;
122 static void rb922gs_nand_select_chip(int chip_no)
126 gpio_set_value(RB922_GPIO_NAND_NCE, 0);
129 gpio_set_value(RB922_GPIO_NAND_NCE, 1);
135 static struct nand_ecclayout rb922gs_nand_ecclayout = {
137 .eccpos = { 8, 9, 10, 13, 14, 15 },
139 .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
142 static int rb922gs_nand_scan_fixup(struct mtd_info *mtd)
144 struct nand_chip *chip = mtd->priv;
146 if (mtd->writesize == 512) {
148 * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
149 * will not be able to find the kernel that we load.
151 chip->ecc.layout = &rb922gs_nand_ecclayout;
157 static struct mtd_partition rb922gs_nand_partitions[] = {
161 .size = (256 * 1024),
162 .mask_flags = MTD_WRITEABLE,
166 .offset = (256 * 1024),
167 .size = (4 * 1024 * 1024) - (256 * 1024),
171 .offset = MTDPART_OFS_NXTBLK,
172 .size = MTDPART_SIZ_FULL,
176 static void __init rb922gs_nand_init(void)
178 gpio_request_one(RB922_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
180 ath79_nfc_set_scan_fixup(rb922gs_nand_scan_fixup);
181 ath79_nfc_set_parts(rb922gs_nand_partitions,
182 ARRAY_SIZE(rb922gs_nand_partitions));
183 ath79_nfc_set_select_chip(rb922gs_nand_select_chip);
184 ath79_nfc_set_swap_dma(true);
185 ath79_register_nfc();
188 static void __init rb922gs_setup(void)
190 const struct rb_info *info;
193 info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
197 scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
198 (info->board_name) ? info->board_name : "");
199 mips_set_machine_name(buf);
201 rb922gs_init_partitions(info);
202 ath79_register_m25p80(&rb922gs_spi_flash_data);
206 ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
208 ath79_register_mdio(0, 0x0);
210 mdiobus_register_board_info(rb922gs_mdio0_info,
211 ARRAY_SIZE(rb922gs_mdio0_info));
213 ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
214 ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
215 ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
216 ath79_eth0_data.phy_mask = BIT(RB922_PHY_ADDR);
217 ath79_eth0_pll_data.pll_10 = 0x81001313;
218 ath79_eth0_pll_data.pll_100 = 0x81000101;
219 ath79_eth0_pll_data.pll_1000 = 0x8f000000;
221 ath79_register_eth(0);
223 ath79_register_pci();
224 ath79_register_leds_gpio(-1, ARRAY_SIZE(rb922gs_leds), rb922gs_leds);
225 ath79_register_gpio_keys_polled(-1, RB922_KEYS_POLL_INTERVAL,
226 ARRAY_SIZE(rb922gs_gpio_keys),
230 * This only supports the RB911G-5HPacD board for now. For other boards
231 * more devices must be registered based on the hardware options which
232 * can be found in the hardware configuration of RouterBOOT.
236 MIPS_MACHINE_NONAME(ATH79_MACH_RB_922GS, "922gs", rb922gs_setup);