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/version.h>
  16 #include <linux/phy.h>
  17 #include <linux/delay.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/ath9k_platform.h>
  20 #include <linux/ar8216_platform.h>
  21 #include <linux/mtd/mtd.h>
  22 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
  23 #include <linux/mtd/nand.h>
  24 #else
  25 #include <linux/mtd/rawnand.h>
  26 #endif
  27 #include <linux/mtd/partitions.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/flash.h>
  30 #include <linux/routerboot.h>
  31 #include <linux/gpio.h>
  32 #include <linux/version.h>
  33
  34 #include <asm/mach-ath79/ath79.h>
  35 #include <asm/mach-ath79/ar71xx_regs.h>
  36
  37 #include "common.h"
  38 #include "dev-eth.h"
  39 #include "dev-m25p80.h"
  40 #include "dev-nfc.h"
  41 #include "dev-usb.h"
  42 #include "dev-wmac.h"
  43 #include "machtypes.h"
  44 #include "routerboot.h"
  45 #include "dev-leds-gpio.h"
  46
  47 #define RB95X_GPIO_NAND_NCE     14
  48
  49 static struct mtd_partition rb95x_nand_partitions[] = {
  50         {
  51                 .name   = "booter",
  52                 .offset = 0,
  53                 .size   = (256 * 1024),
  54                 .mask_flags = MTD_WRITEABLE,
  55         },
  56         {
  57                 .name   = "kernel",
  58                 .offset = (256 * 1024),
  59                 .size   = (4 * 1024 * 1024) - (256 * 1024),
  60         },
  61         {
  62                 .name   = "ubi",
  63                 .offset = MTDPART_OFS_NXTBLK,
  64                 .size   = MTDPART_SIZ_FULL,
  65         },
  66 };
  67
  68 static struct gpio_led rb951ui_leds_gpio[] __initdata = {
  69         {
  70                 .name           = "rb:green:wlan",
  71                 .gpio           = 11,
  72                 .active_low     = 1,
  73         }, {
  74                 .name           = "rb:green:act",
  75                 .gpio           = 3,
  76                 .active_low     = 1,
  77         }, {
  78                 .name           = "rb:green:port1",
  79                 .gpio           = 13,
  80                 .active_low     = 1,
  81         }, {
  82                 .name           = "rb:green:port2",
  83                 .gpio           = 12,
  84                 .active_low     = 1,
  85         }, {
  86                 .name           = "rb:green:port3",
  87                 .gpio           = 4,
  88                 .active_low     = 1,
  89         }, {
  90                 .name           = "rb:green:port4",
  91                 .gpio           = 21,
  92                 .active_low     = 1,
  93         }, {
  94                 .name           = "rb:green:port5",
  95                 .gpio           = 16,
  96                 .active_low     = 1,
  97         }
  98 };
  99
 100 static struct ar8327_pad_cfg rb95x_ar8327_pad0_cfg = {
 101         .mode = AR8327_PAD_MAC_RGMII,
 102         .txclk_delay_en = true,
 103         .rxclk_delay_en = true,
 104         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
 105         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 106 };
 107
 108 static struct ar8327_platform_data rb95x_ar8327_data = {
 109         .pad0_cfg = &rb95x_ar8327_pad0_cfg,
 110         .port0_cfg = {
 111                 .force_link = 1,
 112                 .speed = AR8327_PORT_SPEED_1000,
 113                 .duplex = 1,
 114                 .txpause = 1,
 115                 .rxpause = 1,
 116         }
 117 };
 118
 119 static struct mdio_board_info rb95x_mdio0_info[] = {
 120         {
 121                 .bus_id = "ag71xx-mdio.0",
 122                 .mdio_addr = 0,
 123                 .platform_data = &rb95x_ar8327_data,
 124         },
 125 };
 126
 127 void __init rb95x_wlan_init(void)
 128 {
 129         char *art_buf;
 130         u8 wlan_mac[ETH_ALEN];
 131
 132         art_buf = rb_get_wlan_data();
 133         if (art_buf == NULL)
 134                 return;
 135
 136         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 137         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 138
 139         kfree(art_buf);
 140 }
 141
 142 static void rb95x_nand_select_chip(int chip_no)
 143 {
 144         switch (chip_no) {
 145         case 0:
 146                 gpio_set_value(RB95X_GPIO_NAND_NCE, 0);
 147                 break;
 148         default:
 149                 gpio_set_value(RB95X_GPIO_NAND_NCE, 1);
 150                 break;
 151         }
 152         ndelay(500);
 153 }
 154
 155 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 156 static struct nand_ecclayout rb95x_nand_ecclayout = {
 157         .eccbytes       = 6,
 158         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 159         .oobavail       = 9,
 160         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 161 };
 162
 163 #else
 164
 165 static int rb95x_ooblayout_ecc(struct mtd_info *mtd, int section,
 166                                struct mtd_oob_region *oobregion)
 167 {
 168         switch (section) {
 169         case 0:
 170                 oobregion->offset = 8;
 171                 oobregion->length = 3;
 172                 return 0;
 173         case 1:
 174                 oobregion->offset = 13;
 175                 oobregion->length = 3;
 176                 return 0;
 177         default:
 178                 return -ERANGE;
 179         }
 180 }
 181
 182 static int rb95x_ooblayout_free(struct mtd_info *mtd, int section,
 183                                 struct mtd_oob_region *oobregion)
 184 {
 185         switch (section) {
 186         case 0:
 187                 oobregion->offset = 0;
 188                 oobregion->length = 4;
 189                 return 0;
 190         case 1:
 191                 oobregion->offset = 4;
 192                 oobregion->length = 1;
 193                 return 0;
 194         case 2:
 195                 oobregion->offset = 6;
 196                 oobregion->length = 2;
 197                 return 0;
 198         case 3:
 199                 oobregion->offset = 11;
 200                 oobregion->length = 2;
 201                 return 0;
 202         default:
 203                 return -ERANGE;
 204         }
 205 }
 206
 207 static const struct mtd_ooblayout_ops rb95x_nand_ecclayout_ops = {
 208         .ecc = rb95x_ooblayout_ecc,
 209         .free = rb95x_ooblayout_free,
 210 };
 211 #endif /* < 4.6 */
 212
 213 static int rb95x_nand_scan_fixup(struct mtd_info *mtd)
 214 {
 215 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 216         struct nand_chip *chip = mtd->priv;
 217 #else
 218         struct nand_chip *chip = mtd_to_nand(mtd);
 219 #endif /* < 4.6.0 */
 220
 221         if (mtd->writesize == 512) {
 222                 /*
 223                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 224                  * will not be able to find the kernel that we load.
 225                  */
 226 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 227                 chip->ecc.layout = &rb95x_nand_ecclayout;
 228 #else
 229                 mtd_set_ooblayout(mtd, &rb95x_nand_ecclayout_ops);
 230 #endif
 231         }
 232
 233         chip->options = NAND_NO_SUBPAGE_WRITE;
 234
 235         return 0;
 236 }
 237
 238 void __init rb95x_nand_init(void)
 239 {
 240         gpio_request_one(RB95X_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 241
 242         ath79_nfc_set_scan_fixup(rb95x_nand_scan_fixup);
 243         ath79_nfc_set_parts(rb95x_nand_partitions,
 244                             ARRAY_SIZE(rb95x_nand_partitions));
 245         ath79_nfc_set_select_chip(rb95x_nand_select_chip);
 246         ath79_nfc_set_swap_dma(true);
 247         ath79_register_nfc();
 248 }
 249
 250 static int __init rb95x_setup(void)
 251 {
 252         const struct rb_info *info;
 253
 254         info = rb_init_info((void *)(KSEG1ADDR(AR71XX_SPI_BASE)), 0x10000);
 255         if (!info)
 256                 return -EINVAL;
 257
 258         rb95x_nand_init();
 259
 260         return 0;
 261 }
 262
 263 static void __init rb951g_setup(void)
 264 {
 265         if (rb95x_setup())
 266                 return;
 267
 268         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 269                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 270
 271         ath79_register_mdio(0, 0x0);
 272
 273         mdiobus_register_board_info(rb95x_mdio0_info,
 274                                     ARRAY_SIZE(rb95x_mdio0_info));
 275
 276         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 277         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 278         ath79_eth0_data.phy_mask = BIT(0);
 279
 280         ath79_register_eth(0);
 281
 282         rb95x_wlan_init();
 283         ath79_register_usb();
 284 }
 285
 286 MIPS_MACHINE(ATH79_MACH_RB_951G, "951G", "MikroTik RouterBOARD 951G-2HnD",
 287              rb951g_setup);
 288
 289 static void __init rb951ui_setup(void)
 290 {
 291         if (rb95x_setup())
 292                 return;
 293
 294         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE);
 295
 296         ath79_register_mdio(1, 0x0);
 297
 298         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 299         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
 300
 301         ath79_switch_data.phy4_mii_en = 1;
 302         ath79_switch_data.phy_poll_mask = BIT(4);
 303         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 304         ath79_eth0_data.phy_mask = BIT(4);
 305         ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
 306         ath79_register_eth(0);
 307
 308         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 309         ath79_register_eth(1);
 310
 311         gpio_request_one(20, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 312                          "USB power");
 313
 314         gpio_request_one(2, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 315                          "POE power");
 316
 317         rb95x_wlan_init();
 318         ath79_register_usb();
 319
 320         ath79_register_leds_gpio(-1, ARRAY_SIZE(rb951ui_leds_gpio),
 321                                  rb951ui_leds_gpio);
 322 }
 323
 324 MIPS_MACHINE(ATH79_MACH_RB_951U, "951HnD", "MikroTik RouterBOARD 951Ui-2HnD",
 325              rb951ui_setup);