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
);