2 * MikroTik RouterBOARD 95X support
4 * Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be>
5 * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
6 * Copyright (C) 2013 Kamil Trzcinski <ayufan@ayufan.eu>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published
10 * by the Free Software Foundation.
13 #define pr_fmt(fmt) "rb95x: " fmt
15 #include <linux/phy.h>
16 #include <linux/delay.h>
17 #include <linux/platform_device.h>
18 #include <linux/ath9k_platform.h>
19 #include <linux/ar8216_platform.h>
20 #include <linux/mtd/mtd.h>
21 #include <linux/mtd/nand.h>
22 #include <linux/mtd/partitions.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/flash.h>
25 #include <linux/rle.h>
26 #include <linux/routerboot.h>
27 #include <linux/gpio.h>
29 #include <asm/mach-ath79/ath79.h>
30 #include <asm/mach-ath79/ar71xx_regs.h>
34 #include "dev-m25p80.h"
38 #include "machtypes.h"
39 #include "routerboot.h"
41 #define RB95X_GPIO_NAND_NCE 14
43 #define RB_ROUTERBOOT_OFFSET 0x0000
44 #define RB_ROUTERBOOT_SIZE 0xb000
45 #define RB_HARD_CFG_OFFSET 0xc000
46 #define RB_HARD_CFG_SIZE 0x1000
47 #define RB_BIOS_OFFSET 0xd000
48 #define RB_BIOS_SIZE 0x2000
49 #define RB_SOFT_CFG_OFFSET 0xe000
50 #define RB_SOFT_CFG_SIZE 0x1000
52 #define RB_ART_SIZE 0x10000
54 static struct mtd_partition rb95x_nand_partitions
[] = {
59 .mask_flags
= MTD_WRITEABLE
,
63 .offset
= (256 * 1024),
64 .size
= (4 * 1024 * 1024) - (256 * 1024),
68 .offset
= MTDPART_OFS_NXTBLK
,
69 .size
= MTDPART_SIZ_FULL
,
73 static struct ar8327_pad_cfg rb95x_ar8327_pad0_cfg
= {
74 .mode
= AR8327_PAD_MAC_RGMII
,
75 .txclk_delay_en
= true,
76 .rxclk_delay_en
= true,
77 .txclk_delay_sel
= AR8327_CLK_DELAY_SEL1
,
78 .rxclk_delay_sel
= AR8327_CLK_DELAY_SEL2
,
81 static struct ar8327_platform_data rb95x_ar8327_data
= {
82 .pad0_cfg
= &rb95x_ar8327_pad0_cfg
,
85 .speed
= AR8327_PORT_SPEED_1000
,
92 static struct mdio_board_info rb95x_mdio0_info
[] = {
94 .bus_id
= "ag71xx-mdio.0",
96 .platform_data
= &rb95x_ar8327_data
,
100 void __init
rb95x_wlan_init(void)
102 u8
*hard_cfg
= (u8
*) KSEG1ADDR(0x1f000000 + RB_HARD_CFG_OFFSET
);
106 u8 wlan_mac
[ETH_ALEN
];
109 err
= routerboot_find_tag(hard_cfg
, RB_HARD_CFG_SIZE
, RB_ID_WLAN_DATA
,
112 pr_err("no calibration data found\n");
116 art_buf
= kmalloc(RB_ART_SIZE
, GFP_KERNEL
);
117 if (art_buf
== NULL
) {
118 pr_err("no memory for calibration data\n");
122 err
= rle_decode((char *) tag
, tag_len
, art_buf
, RB_ART_SIZE
,
125 pr_err("unable to decode calibration data\n");
129 ath79_init_mac(wlan_mac
, ath79_mac_base
, 11);
130 ath79_register_wmac(art_buf
+ 0x1000, wlan_mac
);
136 static void rb95x_nand_select_chip(int chip_no
)
140 gpio_set_value(RB95X_GPIO_NAND_NCE
, 0);
143 gpio_set_value(RB95X_GPIO_NAND_NCE
, 1);
149 static struct nand_ecclayout rb95x_nand_ecclayout
= {
151 .eccpos
= { 8, 9, 10, 13, 14, 15 },
153 .oobfree
= { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
156 static int rb95x_nand_scan_fixup(struct mtd_info
*mtd
)
158 struct nand_chip
*chip
= mtd
->priv
;
160 if (mtd
->writesize
== 512) {
162 * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
163 * will not be able to find the kernel that we load.
165 chip
->ecc
.layout
= &rb95x_nand_ecclayout
;
171 void __init
rb95x_nand_init(void)
173 gpio_request_one(RB95X_GPIO_NAND_NCE
, GPIOF_OUT_INIT_HIGH
, "NAND nCE");
175 ath79_nfc_set_scan_fixup(rb95x_nand_scan_fixup
);
176 ath79_nfc_set_parts(rb95x_nand_partitions
,
177 ARRAY_SIZE(rb95x_nand_partitions
));
178 ath79_nfc_set_select_chip(rb95x_nand_select_chip
);
179 ath79_nfc_set_swap_dma(true);
180 ath79_register_nfc();
183 static void __init
rb95x_setup(void)
187 ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0
|
188 AR934X_ETH_CFG_SW_ONLY_MODE
);
190 ath79_register_mdio(0, 0x0);
192 mdiobus_register_board_info(rb95x_mdio0_info
,
193 ARRAY_SIZE(rb95x_mdio0_info
));
195 ath79_init_mac(ath79_eth0_data
.mac_addr
, ath79_mac_base
, 0);
196 ath79_eth0_data
.phy_if_mode
= PHY_INTERFACE_MODE_RGMII
;
197 ath79_eth0_data
.phy_mask
= BIT(0);
199 ath79_register_eth(0);
202 static void __init
rb951g_setup(void)
206 ath79_register_usb();
209 MIPS_MACHINE(ATH79_MACH_RB_951G
, "951G", "MikroTik RouterBOARD 951G-2HnD",