2 * MikroTik RouterBOARD 92X 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 RB92X_FLAG_USB BIT(0)
53 #define RB92X_FLAG_USB_POWER BIT(1)
54 #define RB92X_FLAG_PCIE BIT(2)
56 #define RB922_PHY_ADDR 4
58 #define RB922_KEYS_POLL_INTERVAL 20 /* msecs */
59 #define RB922_KEYS_DEBOUNCE_INTERVAL (3 * RB922_KEYS_POLL_INTERVAL)
61 #define RB_ROUTERBOOT_OFFSET 0x0000
62 #define RB_ROUTERBOOT_MIN_SIZE 0xb000
63 #define RB_HARD_CFG_SIZE 0x1000
64 #define RB_BIOS_OFFSET 0xd000
65 #define RB_BIOS_SIZE 0x1000
66 #define RB_SOFT_CFG_OFFSET 0xf000
67 #define RB_SOFT_CFG_SIZE 0x1000
69 struct rb_board_info
{
74 static struct mtd_partition rb922gs_spi_partitions
[] = {
77 .offset
= RB_ROUTERBOOT_OFFSET
,
78 .mask_flags
= MTD_WRITEABLE
,
80 .name
= "hard_config",
81 .size
= RB_HARD_CFG_SIZE
,
82 .mask_flags
= MTD_WRITEABLE
,
85 .offset
= RB_BIOS_OFFSET
,
87 .mask_flags
= MTD_WRITEABLE
,
89 .name
= "soft_config",
90 .size
= RB_SOFT_CFG_SIZE
,
94 static void __init
rb922gs_init_partitions(const struct rb_info
*info
)
96 rb922gs_spi_partitions
[0].size
= info
->hard_cfg_offs
;
97 rb922gs_spi_partitions
[1].offset
= info
->hard_cfg_offs
;
98 rb922gs_spi_partitions
[3].offset
= info
->soft_cfg_offs
;
101 static struct mtd_partition rb922gs_nand_partitions
[] = {
105 .size
= (256 * 1024),
106 .mask_flags
= MTD_WRITEABLE
,
110 .offset
= (256 * 1024),
111 .size
= (4 * 1024 * 1024) - (256 * 1024),
115 .offset
= MTDPART_OFS_NXTBLK
,
116 .size
= MTDPART_SIZ_FULL
,
120 static struct flash_platform_data rb922gs_spi_flash_data
= {
121 .parts
= rb922gs_spi_partitions
,
122 .nr_parts
= ARRAY_SIZE(rb922gs_spi_partitions
),
125 static struct gpio_led rb922gs_leds
[] __initdata
= {
127 .name
= "rb:green:user",
128 .gpio
= RB922_GPIO_LED_USR
,
133 static struct gpio_keys_button rb922gs_gpio_keys
[] __initdata
= {
135 .desc
= "Reset button",
138 .debounce_interval
= RB922_KEYS_DEBOUNCE_INTERVAL
,
139 .gpio
= RB922_GPIO_BTN_RESET
,
144 static struct at803x_platform_data rb922gs_at803x_data
= {
145 .disable_smarteee
= 1,
148 static struct mdio_board_info rb922gs_mdio0_info
[] = {
150 .bus_id
= "ag71xx-mdio.0",
151 .mdio_addr
= RB922_PHY_ADDR
,
152 .platform_data
= &rb922gs_at803x_data
,
158 static void rb922gs_nand_select_chip(int chip_no
)
162 gpio_set_value(RB922_GPIO_NAND_NCE
, 0);
165 gpio_set_value(RB922_GPIO_NAND_NCE
, 1);
171 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
172 static struct nand_ecclayout rb922gs_nand_ecclayout
= {
174 .eccpos
= { 8, 9, 10, 13, 14, 15 },
176 .oobfree
= { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
181 static int rb922gs_ooblayout_ecc(struct mtd_info
*mtd
, int section
,
182 struct mtd_oob_region
*oobregion
)
186 oobregion
->offset
= 8;
187 oobregion
->length
= 3;
190 oobregion
->offset
= 13;
191 oobregion
->length
= 3;
198 static int rb922gs_ooblayout_free(struct mtd_info
*mtd
, int section
,
199 struct mtd_oob_region
*oobregion
)
203 oobregion
->offset
= 0;
204 oobregion
->length
= 4;
207 oobregion
->offset
= 4;
208 oobregion
->length
= 1;
211 oobregion
->offset
= 6;
212 oobregion
->length
= 2;
215 oobregion
->offset
= 11;
216 oobregion
->length
= 2;
223 static const struct mtd_ooblayout_ops rb922gs_nand_ecclayout_ops
= {
224 .ecc
= rb922gs_ooblayout_ecc
,
225 .free
= rb922gs_ooblayout_free
,
229 static int rb922gs_nand_scan_fixup(struct mtd_info
*mtd
)
231 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
232 struct nand_chip
*chip
= mtd
->priv
;
234 struct nand_chip
*chip
= mtd_to_nand(mtd
);
237 if (mtd
->writesize
== 512) {
239 * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
240 * will not be able to find the kernel that we load.
242 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
243 chip
->ecc
.layout
= &rb922gs_nand_ecclayout
;
245 mtd_set_ooblayout(mtd
, &rb922gs_nand_ecclayout_ops
);
249 chip
->options
= NAND_NO_SUBPAGE_WRITE
;
254 static void __init
rb922gs_nand_init(void)
256 gpio_request_one(RB922_GPIO_NAND_NCE
, GPIOF_OUT_INIT_HIGH
, "NAND nCE");
258 ath79_nfc_set_scan_fixup(rb922gs_nand_scan_fixup
);
259 ath79_nfc_set_parts(rb922gs_nand_partitions
,
260 ARRAY_SIZE(rb922gs_nand_partitions
));
261 ath79_nfc_set_select_chip(rb922gs_nand_select_chip
);
262 ath79_nfc_set_swap_dma(true);
263 ath79_register_nfc();
266 #define RB_BOARD_INFO(_name, _flags) \
272 static const struct rb_board_info rb92x_boards
[] __initconst
= {
273 RB_BOARD_INFO("921GS-5HPacD r2", RB92X_FLAG_PCIE
),
274 RB_BOARD_INFO("922UAGS-5HPacD", RB92X_FLAG_USB
| RB92X_FLAG_USB_POWER
| RB92X_FLAG_PCIE
),
277 static u32
rb92x_get_flags(const struct rb_info
*info
)
281 for (i
= 0; i
< ARRAY_SIZE(rb92x_boards
); i
++) {
282 const struct rb_board_info
*bi
;
284 bi
= &rb92x_boards
[i
];
285 if (strcmp(info
->board_name
, bi
->name
) == 0)
292 static void __init
rb922gs_setup(void)
294 const struct rb_info
*info
;
298 info
= rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
302 scnprintf(buf
, sizeof(buf
), "MikroTik RouterBOARD %s",
303 (info
->board_name
) ? info
->board_name
: "");
304 mips_set_machine_name(buf
);
306 rb922gs_init_partitions(info
);
307 ath79_register_m25p80(&rb922gs_spi_flash_data
);
311 ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN
);
313 ath79_register_mdio(0, 0x0);
315 mdiobus_register_board_info(rb922gs_mdio0_info
,
316 ARRAY_SIZE(rb922gs_mdio0_info
));
318 ath79_init_mac(ath79_eth0_data
.mac_addr
, ath79_mac_base
, 0);
319 ath79_eth0_data
.mii_bus_dev
= &ath79_mdio0_device
.dev
;
320 ath79_eth0_data
.phy_if_mode
= PHY_INTERFACE_MODE_RGMII
;
321 ath79_eth0_data
.phy_mask
= BIT(RB922_PHY_ADDR
);
322 if (strcmp(info
->board_name
, "921GS-5HPacD r2") == 0 ||
323 strcmp(info
->board_name
, "922UAGS-5HPacD") == 0)
325 ath79_eth0_pll_data
.pll_10
= 0xa0001313;
326 ath79_eth0_pll_data
.pll_100
= 0xa0000101;
327 ath79_eth0_pll_data
.pll_1000
= 0x8f000000;
330 ath79_eth0_pll_data
.pll_10
= 0x81001313;
331 ath79_eth0_pll_data
.pll_100
= 0x81000101;
332 ath79_eth0_pll_data
.pll_1000
= 0x8f000000;
335 ath79_register_eth(0);
337 flags
= rb92x_get_flags(info
);
339 if (flags
& RB92X_FLAG_USB
)
340 ath79_register_usb();
342 if (flags
& RB92X_FLAG_USB_POWER
)
343 gpio_request_one(RB922_GPIO_USB_POWER
, GPIOF_OUT_INIT_LOW
|
344 GPIOF_EXPORT_DIR_FIXED
, "USB power");
346 if (flags
& RB92X_FLAG_PCIE
)
347 ath79_register_pci();
349 ath79_register_leds_gpio(-1, ARRAY_SIZE(rb922gs_leds
), rb922gs_leds
);
350 ath79_register_gpio_keys_polled(-1, RB922_KEYS_POLL_INTERVAL
,
351 ARRAY_SIZE(rb922gs_gpio_keys
),
355 * This only supports the RB911G-5HPacD board for now. For other boards
356 * more devices must be registered based on the hardware options which
357 * can be found in the hardware configuration of RouterBOOT.
361 MIPS_MACHINE_NONAME(ATH79_MACH_RB_922GS
, "922gs", rb922gs_setup
);