target/linux/ar71xx/files/arch/mips/ath79/mach-rb95x.c

   1 /*
   2  *  MikroTik RouterBOARD 95X support
   3  *
   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>
   7  *
   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.
  11  */
  12
  13 #define pr_fmt(fmt) "rb95x: " fmt
  14
  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 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
  22 #include <linux/mtd/nand.h>
  23 #else
  24 #include <linux/mtd/rawnand.h>
  25 #endif
  26 #include <linux/mtd/partitions.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/flash.h>
  29 #include <linux/routerboot.h>
  30 #include <linux/gpio.h>
  31 #include <linux/version.h>
  32
  33 #include <asm/mach-ath79/ath79.h>
  34 #include <asm/mach-ath79/ar71xx_regs.h>
  35
  36 #include "common.h"
  37 #include "dev-eth.h"
  38 #include "dev-m25p80.h"
  39 #include "dev-nfc.h"
  40 #include "dev-usb.h"
  41 #include "dev-wmac.h"
  42 #include "machtypes.h"
  43 #include "routerboot.h"
  44 #include "dev-leds-gpio.h"
  45
  46 #define RB95X_GPIO_NAND_NCE     14
  47
  48 static struct mtd_partition rb95x_nand_partitions[] = {
  49         {
  50                 .name   = "booter",
  51                 .offset = 0,
  52                 .size   = (256 * 1024),
  53                 .mask_flags = MTD_WRITEABLE,
  54         },
  55         {
  56                 .name   = "kernel",
  57                 .offset = (256 * 1024),
  58                 .size   = (4 * 1024 * 1024) - (256 * 1024),
  59         },
  60         {
  61                 .name   = "ubi",
  62                 .offset = MTDPART_OFS_NXTBLK,
  63                 .size   = MTDPART_SIZ_FULL,
  64         },
  65 };
  66
  67 static struct gpio_led rb951ui_leds_gpio[] __initdata = {
  68         {
  69                 .name           = "rb:green:wlan",
  70                 .gpio           = 11,
  71                 .active_low     = 1,
  72         }, {
  73                 .name           = "rb:green:act",
  74                 .gpio           = 3,
  75                 .active_low     = 1,
  76         }, {
  77                 .name           = "rb:green:port1",
  78                 .gpio           = 13,
  79                 .active_low     = 1,
  80         }, {
  81                 .name           = "rb:green:port2",
  82                 .gpio           = 12,
  83                 .active_low     = 1,
  84         }, {
  85                 .name           = "rb:green:port3",
  86                 .gpio           = 4,
  87                 .active_low     = 1,
  88         }, {
  89                 .name           = "rb:green:port4",
  90                 .gpio           = 21,
  91                 .active_low     = 1,
  92         }, {
  93                 .name           = "rb:green:port5",
  94                 .gpio           = 16,
  95                 .active_low     = 1,
  96         }
  97 };
  98
  99 static struct ar8327_pad_cfg rb95x_ar8327_pad0_cfg = {
 100         .mode = AR8327_PAD_MAC_RGMII,
 101         .txclk_delay_en = true,
 102         .rxclk_delay_en = true,
 103         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
 104         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 105 };
 106
 107 static struct ar8327_platform_data rb95x_ar8327_data = {
 108         .pad0_cfg = &rb95x_ar8327_pad0_cfg,
 109         .port0_cfg = {
 110                 .force_link = 1,
 111                 .speed = AR8327_PORT_SPEED_1000,
 112                 .duplex = 1,
 113                 .txpause = 1,
 114                 .rxpause = 1,
 115         }
 116 };
 117
 118 static struct mdio_board_info rb95x_mdio0_info[] = {
 119         {
 120                 .bus_id = "ag71xx-mdio.0",
 121                 .mdio_addr = 0,
 122                 .platform_data = &rb95x_ar8327_data,
 123         },
 124 };
 125
 126 void __init rb95x_wlan_init(void)
 127 {
 128         char *art_buf;
 129         u8 wlan_mac[ETH_ALEN];
 130
 131         art_buf = rb_get_wlan_data();
 132         if (art_buf == NULL)
 133                 return;
 134
 135         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 136         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 137
 138         kfree(art_buf);
 139 }
 140
 141 static void rb95x_nand_select_chip(int chip_no)
 142 {
 143         switch (chip_no) {
 144         case 0:
 145                 gpio_set_value(RB95X_GPIO_NAND_NCE, 0);
 146                 break;
 147         default:
 148                 gpio_set_value(RB95X_GPIO_NAND_NCE, 1);
 149                 break;
 150         }
 151         ndelay(500);
 152 }
 153
 154 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 155 static struct nand_ecclayout rb95x_nand_ecclayout = {
 156         .eccbytes       = 6,
 157         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 158         .oobavail       = 9,
 159         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 160 };
 161
 162 #else
 163
 164 static int rb95x_ooblayout_ecc(struct mtd_info *mtd, int section,
 165                                struct mtd_oob_region *oobregion)
 166 {
 167         switch (section) {
 168         case 0:
 169                 oobregion->offset = 8;
 170                 oobregion->length = 3;
 171                 return 0;
 172         case 1:
 173                 oobregion->offset = 13;
 174                 oobregion->length = 3;
 175                 return 0;
 176         default:
 177                 return -ERANGE;
 178         }
 179 }
 180
 181 static int rb95x_ooblayout_free(struct mtd_info *mtd, int section,
 182                                 struct mtd_oob_region *oobregion)
 183 {
 184         switch (section) {
 185         case 0:
 186                 oobregion->offset = 0;
 187                 oobregion->length = 4;
 188                 return 0;
 189         case 1:
 190                 oobregion->offset = 4;
 191                 oobregion->length = 1;
 192                 return 0;
 193         case 2:
 194                 oobregion->offset = 6;
 195                 oobregion->length = 2;
 196                 return 0;
 197         case 3:
 198                 oobregion->offset = 11;
 199                 oobregion->length = 2;
 200                 return 0;
 201         default:
 202                 return -ERANGE;
 203         }
 204 }
 205
 206 static const struct mtd_ooblayout_ops rb95x_nand_ecclayout_ops = {
 207         .ecc = rb95x_ooblayout_ecc,
 208         .free = rb95x_ooblayout_free,
 209 };
 210 #endif /* < 4.6 */
 211
 212 static int rb95x_nand_scan_fixup(struct mtd_info *mtd)
 213 {
 214 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 215         struct nand_chip *chip = mtd->priv;
 216 #else
 217         struct nand_chip *chip = mtd_to_nand(mtd);
 218 #endif /* < 4.6.0 */
 219
 220         if (mtd->writesize == 512) {
 221                 /*
 222                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 223                  * will not be able to find the kernel that we load.
 224                  */
 225 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 226                 chip->ecc.layout = &rb95x_nand_ecclayout;
 227 #else
 228                 mtd_set_ooblayout(mtd, &rb95x_nand_ecclayout_ops);
 229 #endif
 230         }
 231
 232         chip->options = NAND_NO_SUBPAGE_WRITE;
 233
 234         return 0;
 235 }
 236
 237 void __init rb95x_nand_init(void)
 238 {
 239         gpio_request_one(RB95X_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 240
 241         ath79_nfc_set_scan_fixup(rb95x_nand_scan_fixup);
 242         ath79_nfc_set_parts(rb95x_nand_partitions,
 243                             ARRAY_SIZE(rb95x_nand_partitions));
 244         ath79_nfc_set_select_chip(rb95x_nand_select_chip);
 245         ath79_nfc_set_swap_dma(true);
 246         ath79_register_nfc();
 247 }
 248
 249 static int __init rb95x_setup(void)
 250 {
 251         const struct rb_info *info;
 252
 253         info = rb_init_info((void *)(KSEG1ADDR(AR71XX_SPI_BASE)), 0x10000);
 254         if (!info)
 255                 return -EINVAL;
 256
 257         rb95x_nand_init();
 258
 259         return 0;
 260 }
 261
 262 static void __init rb951g_setup(void)
 263 {
 264         if (rb95x_setup())
 265                 return;
 266
 267         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 268                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 269
 270         ath79_register_mdio(0, 0x0);
 271
 272         mdiobus_register_board_info(rb95x_mdio0_info,
 273                                     ARRAY_SIZE(rb95x_mdio0_info));
 274
 275         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 276         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 277         ath79_eth0_data.phy_mask = BIT(0);
 278
 279         ath79_register_eth(0);
 280
 281         rb95x_wlan_init();
 282         ath79_register_usb();
 283 }
 284
 285 MIPS_MACHINE(ATH79_MACH_RB_951G, "951G", "MikroTik RouterBOARD 951G-2HnD",
 286              rb951g_setup);
 287
 288 static void __init rb951ui_setup(void)
 289 {
 290         if (rb95x_setup())
 291                 return;
 292
 293         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE);
 294
 295         ath79_register_mdio(1, 0x0);
 296
 297         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 298         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
 299
 300         ath79_switch_data.phy4_mii_en = 1;
 301         ath79_switch_data.phy_poll_mask = BIT(4);
 302         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 303         ath79_eth0_data.phy_mask = BIT(4);
 304         ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
 305         ath79_register_eth(0);
 306
 307         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 308         ath79_register_eth(1);
 309
 310         gpio_request_one(20, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 311                          "USB power");
 312
 313         gpio_request_one(2, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 314                          "POE power");
 315
 316         rb95x_wlan_init();
 317         ath79_register_usb();
 318
 319         ath79_register_leds_gpio(-1, ARRAY_SIZE(rb951ui_leds_gpio),
 320                                  rb951ui_leds_gpio);
 321 }
 322
 323 MIPS_MACHINE(ATH79_MACH_RB_951U, "951HnD", "MikroTik RouterBOARD 951Ui-2HnD",
 324              rb951ui_setup);