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