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/version.h>
12 #include <linux/phy.h>
13 #include <linux/delay.h>
14 #include <linux/platform_device.h>
15 #include <linux/ath9k_platform.h>
16 #include <linux/mtd/mtd.h>
17 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
18 #include <linux/mtd/nand.h>
20 #include <linux/mtd/rawnand.h>
22 #include <linux/mtd/partitions.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/flash.h>
25 #include <linux/routerboot.h>
26 #include <linux/gpio.h>
27 #include <linux/platform_data/phy-at803x.h>
28 #include <linux/version.h>
31 #include <asm/mach-ath79/ath79.h>
32 #include <asm/mach-ath79/ar71xx_regs.h>
35 #include "dev-gpio-buttons.h"
37 #include "dev-leds-gpio.h"
38 #include "dev-m25p80.h"
42 #include "machtypes.h"
44 #include "routerboot.h"
46 #define RB922_GPIO_LED_USR 12
47 #define RB922_GPIO_USB_POWER 13
48 #define RB922_GPIO_FAN_CTRL 14
49 #define RB922_GPIO_BTN_RESET 20
50 #define RB922_GPIO_NAND_NCE 23
52 #define RB922_PHY_ADDR 4
54 #define RB922_KEYS_POLL_INTERVAL 20 /* msecs */
55 #define RB922_KEYS_DEBOUNCE_INTERVAL (3 * RB922_KEYS_POLL_INTERVAL)
57 #define RB_ROUTERBOOT_OFFSET 0x0000
58 #define RB_ROUTERBOOT_MIN_SIZE 0xb000
59 #define RB_HARD_CFG_SIZE 0x1000
60 #define RB_BIOS_OFFSET 0xd000
61 #define RB_BIOS_SIZE 0x1000
62 #define RB_SOFT_CFG_OFFSET 0xf000
63 #define RB_SOFT_CFG_SIZE 0x1000
65 static struct mtd_partition rb922gs_spi_partitions
[] = {
68 .offset
= RB_ROUTERBOOT_OFFSET
,
69 .mask_flags
= MTD_WRITEABLE
,
71 .name
= "hard_config",
72 .size
= RB_HARD_CFG_SIZE
,
73 .mask_flags
= MTD_WRITEABLE
,
76 .offset
= RB_BIOS_OFFSET
,
78 .mask_flags
= MTD_WRITEABLE
,
80 .name
= "soft_config",
81 .size
= RB_SOFT_CFG_SIZE
,
85 static struct flash_platform_data rb922gs_spi_flash_data
= {
86 .parts
= rb922gs_spi_partitions
,
87 .nr_parts
= ARRAY_SIZE(rb922gs_spi_partitions
),
90 static struct gpio_led rb922gs_leds
[] __initdata
= {
92 .name
= "rb:green:user",
93 .gpio
= RB922_GPIO_LED_USR
,
98 static struct gpio_keys_button rb922gs_gpio_keys
[] __initdata
= {
100 .desc
= "Reset button",
103 .debounce_interval
= RB922_KEYS_DEBOUNCE_INTERVAL
,
104 .gpio
= RB922_GPIO_BTN_RESET
,
109 static struct at803x_platform_data rb922gs_at803x_data
= {
110 .disable_smarteee
= 1,
113 static struct mdio_board_info rb922gs_mdio0_info
[] = {
115 .bus_id
= "ag71xx-mdio.0",
116 .mdio_addr
= RB922_PHY_ADDR
,
117 .platform_data
= &rb922gs_at803x_data
,
121 static void __init
rb922gs_init_partitions(const struct rb_info
*info
)
123 rb922gs_spi_partitions
[0].size
= info
->hard_cfg_offs
;
124 rb922gs_spi_partitions
[1].offset
= info
->hard_cfg_offs
;
125 rb922gs_spi_partitions
[3].offset
= info
->soft_cfg_offs
;
128 static void rb922gs_nand_select_chip(int chip_no
)
132 gpio_set_value(RB922_GPIO_NAND_NCE
, 0);
135 gpio_set_value(RB922_GPIO_NAND_NCE
, 1);
141 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
142 static struct nand_ecclayout rb922gs_nand_ecclayout
= {
144 .eccpos
= { 8, 9, 10, 13, 14, 15 },
146 .oobfree
= { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
151 static int rb922gs_ooblayout_ecc(struct mtd_info
*mtd
, int section
,
152 struct mtd_oob_region
*oobregion
)
156 oobregion
->offset
= 8;
157 oobregion
->length
= 3;
160 oobregion
->offset
= 13;
161 oobregion
->length
= 3;
168 static int rb922gs_ooblayout_free(struct mtd_info
*mtd
, int section
,
169 struct mtd_oob_region
*oobregion
)
173 oobregion
->offset
= 0;
174 oobregion
->length
= 4;
177 oobregion
->offset
= 4;
178 oobregion
->length
= 1;
181 oobregion
->offset
= 6;
182 oobregion
->length
= 2;
185 oobregion
->offset
= 11;
186 oobregion
->length
= 2;
193 static const struct mtd_ooblayout_ops rb922gs_nand_ecclayout_ops
= {
194 .ecc
= rb922gs_ooblayout_ecc
,
195 .free
= rb922gs_ooblayout_free
,
199 static int rb922gs_nand_scan_fixup(struct mtd_info
*mtd
)
201 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
202 struct nand_chip
*chip
= mtd
->priv
;
204 struct nand_chip
*chip
= mtd_to_nand(mtd
);
207 if (mtd
->writesize
== 512) {
209 * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
210 * will not be able to find the kernel that we load.
212 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
213 chip
->ecc
.layout
= &rb922gs_nand_ecclayout
;
215 mtd_set_ooblayout(mtd
, &rb922gs_nand_ecclayout_ops
);
219 chip
->options
= NAND_NO_SUBPAGE_WRITE
;
224 static struct mtd_partition rb922gs_nand_partitions
[] = {
228 .size
= (256 * 1024),
229 .mask_flags
= MTD_WRITEABLE
,
233 .offset
= (256 * 1024),
234 .size
= (4 * 1024 * 1024) - (256 * 1024),
238 .offset
= MTDPART_OFS_NXTBLK
,
239 .size
= MTDPART_SIZ_FULL
,
243 static void __init
rb922gs_nand_init(void)
245 gpio_request_one(RB922_GPIO_NAND_NCE
, GPIOF_OUT_INIT_HIGH
, "NAND nCE");
247 ath79_nfc_set_scan_fixup(rb922gs_nand_scan_fixup
);
248 ath79_nfc_set_parts(rb922gs_nand_partitions
,
249 ARRAY_SIZE(rb922gs_nand_partitions
));
250 ath79_nfc_set_select_chip(rb922gs_nand_select_chip
);
251 ath79_nfc_set_swap_dma(true);
252 ath79_register_nfc();
255 static void __init
rb922gs_setup(void)
257 const struct rb_info
*info
;
260 info
= rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
264 scnprintf(buf
, sizeof(buf
), "MikroTik RouterBOARD %s",
265 (info
->board_name
) ? info
->board_name
: "");
266 mips_set_machine_name(buf
);
268 rb922gs_init_partitions(info
);
269 ath79_register_m25p80(&rb922gs_spi_flash_data
);
273 ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN
);
275 ath79_register_mdio(0, 0x0);
277 mdiobus_register_board_info(rb922gs_mdio0_info
,
278 ARRAY_SIZE(rb922gs_mdio0_info
));
280 ath79_init_mac(ath79_eth0_data
.mac_addr
, ath79_mac_base
, 0);
281 ath79_eth0_data
.mii_bus_dev
= &ath79_mdio0_device
.dev
;
282 ath79_eth0_data
.phy_if_mode
= PHY_INTERFACE_MODE_RGMII
;
283 ath79_eth0_data
.phy_mask
= BIT(RB922_PHY_ADDR
);
284 if (strcmp(info
->board_name
, "921GS-5HPacD r2") == 0) {
285 ath79_eth0_pll_data
.pll_10
= 0xa0001313;
286 ath79_eth0_pll_data
.pll_100
= 0xa0000101;
287 ath79_eth0_pll_data
.pll_1000
= 0x8f000000;
290 ath79_eth0_pll_data
.pll_10
= 0x81001313;
291 ath79_eth0_pll_data
.pll_100
= 0x81000101;
292 ath79_eth0_pll_data
.pll_1000
= 0x8f000000;
295 ath79_register_eth(0);
297 ath79_register_pci();
298 ath79_register_leds_gpio(-1, ARRAY_SIZE(rb922gs_leds
), rb922gs_leds
);
299 ath79_register_gpio_keys_polled(-1, RB922_KEYS_POLL_INTERVAL
,
300 ARRAY_SIZE(rb922gs_gpio_keys
),
304 * This only supports the RB911G-5HPacD board for now. For other boards
305 * more devices must be registered based on the hardware options which
306 * can be found in the hardware configuration of RouterBOOT.
310 MIPS_MACHINE_NONAME(ATH79_MACH_RB_922GS
, "922gs", rb922gs_setup
);