target/linux/ar71xx/files/arch/mips/ath79/mach-rb2011.c

   1 /*
   2  *  MikroTik RouterBOARD 2011 support
   3  *
   4  *  Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be>
   5  *  Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify it
   8  *  under the terms of the GNU General Public License version 2 as published
   9  *  by the Free Software Foundation.
  10  */
  11
  12 #define pr_fmt(fmt) "rb2011: " fmt
  13
  14 #include <linux/phy.h>
  15 #include <linux/delay.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/ath9k_platform.h>
  18 #include <linux/ar8216_platform.h>
  19 #include <linux/mtd/mtd.h>
  20 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
  21 #include <linux/mtd/nand.h>
  22 #else
  23 #include <linux/mtd/rawnand.h>
  24 #endif
  25 #include <linux/mtd/partitions.h>
  26 #include <linux/spi/spi.h>
  27 #include <linux/spi/flash.h>
  28 #include <linux/routerboot.h>
  29 #include <linux/gpio.h>
  30 #include <linux/version.h>
  31
  32 #include <asm/prom.h>
  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
  45 #define RB2011_GPIO_NAND_NCE    14
  46 #define RB2011_GPIO_SFP_LOS     21
  47
  48 #define RB_ROUTERBOOT_OFFSET    0x0000
  49 #define RB_ROUTERBOOT_MIN_SIZE  0xb000
  50 #define RB_HARD_CFG_SIZE        0x1000
  51 #define RB_BIOS_OFFSET          0xd000
  52 #define RB_BIOS_SIZE            0x1000
  53 #define RB_SOFT_CFG_OFFSET      0xf000
  54 #define RB_SOFT_CFG_SIZE        0x1000
  55
  56 #define RB_ART_SIZE             0x10000
  57
  58 #define RB2011_FLAG_SFP         BIT(0)
  59 #define RB2011_FLAG_USB         BIT(1)
  60 #define RB2011_FLAG_WLAN        BIT(2)
  61
  62 static struct mtd_partition rb2011_spi_partitions[] = {
  63         {
  64                 .name           = "routerboot",
  65                 .offset         = RB_ROUTERBOOT_OFFSET,
  66                 .mask_flags     = MTD_WRITEABLE,
  67         }, {
  68                 .name           = "hard_config",
  69                 .size           = RB_HARD_CFG_SIZE,
  70                 .mask_flags     = MTD_WRITEABLE,
  71         }, {
  72                 .name           = "bios",
  73                 .offset         = RB_BIOS_OFFSET,
  74                 .size           = RB_BIOS_SIZE,
  75                 .mask_flags     = MTD_WRITEABLE,
  76         }, {
  77                 .name           = "soft_config",
  78                 .size           = RB_SOFT_CFG_SIZE,
  79         }
  80 };
  81
  82 static void __init rb2011_init_partitions(const struct rb_info *info)
  83 {
  84         rb2011_spi_partitions[0].size = info->hard_cfg_offs;
  85         rb2011_spi_partitions[1].offset = info->hard_cfg_offs;
  86         rb2011_spi_partitions[3].offset = info->soft_cfg_offs;
  87 }
  88
  89 static struct mtd_partition rb2011_nand_partitions[] = {
  90         {
  91                 .name   = "booter",
  92                 .offset = 0,
  93                 .size   = (256 * 1024),
  94                 .mask_flags = MTD_WRITEABLE,
  95         },
  96         {
  97                 .name   = "kernel",
  98                 .offset = (256 * 1024),
  99                 .size   = (4 * 1024 * 1024) - (256 * 1024),
 100         },
 101         {
 102                 .name   = "ubi",
 103                 .offset = MTDPART_OFS_NXTBLK,
 104                 .size   = MTDPART_SIZ_FULL,
 105         },
 106 };
 107
 108 static struct flash_platform_data rb2011_spi_flash_data = {
 109         .parts          = rb2011_spi_partitions,
 110         .nr_parts       = ARRAY_SIZE(rb2011_spi_partitions),
 111 };
 112
 113 static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = {
 114         .mode = AR8327_PAD_MAC_RGMII,
 115         .txclk_delay_en = true,
 116         .rxclk_delay_en = true,
 117         .txclk_delay_sel = AR8327_CLK_DELAY_SEL3,
 118         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
 119 };
 120
 121 static struct ar8327_pad_cfg rb2011_ar8327_pad6_cfg;
 122 static struct ar8327_sgmii_cfg rb2011_ar8327_sgmii_cfg;
 123
 124 static struct ar8327_led_cfg rb2011_ar8327_led_cfg = {
 125         .led_ctrl0 = 0xc731c731,
 126         .led_ctrl1 = 0x00000000,
 127         .led_ctrl2 = 0x00000000,
 128         .led_ctrl3 = 0x0030c300,
 129         .open_drain = false,
 130 };
 131
 132 static const struct ar8327_led_info rb2011_ar8327_leds[] = {
 133         AR8327_LED_INFO(PHY0_0, HW, "rb:green:eth1"),
 134         AR8327_LED_INFO(PHY1_0, HW, "rb:green:eth2"),
 135         AR8327_LED_INFO(PHY2_0, HW, "rb:green:eth3"),
 136         AR8327_LED_INFO(PHY3_0, HW, "rb:green:eth4"),
 137         AR8327_LED_INFO(PHY4_0, HW, "rb:green:eth5"),
 138         AR8327_LED_INFO(PHY0_1, SW, "rb:green:eth6"),
 139         AR8327_LED_INFO(PHY1_1, SW, "rb:green:eth7"),
 140         AR8327_LED_INFO(PHY2_1, SW, "rb:green:eth8"),
 141         AR8327_LED_INFO(PHY3_1, SW, "rb:green:eth9"),
 142         AR8327_LED_INFO(PHY4_1, SW, "rb:green:eth10"),
 143         AR8327_LED_INFO(PHY4_2, SW, "rb:green:usr"),
 144 };
 145
 146 static struct ar8327_platform_data rb2011_ar8327_data = {
 147         .pad0_cfg = &rb2011_ar8327_pad0_cfg,
 148         .port0_cfg = {
 149                 .force_link = 1,
 150                 .speed = AR8327_PORT_SPEED_1000,
 151                 .duplex = 1,
 152                 .txpause = 1,
 153                 .rxpause = 1,
 154         },
 155         .led_cfg = &rb2011_ar8327_led_cfg,
 156         .num_leds = ARRAY_SIZE(rb2011_ar8327_leds),
 157         .leds = rb2011_ar8327_leds,
 158 };
 159
 160 static struct mdio_board_info rb2011_mdio0_info[] = {
 161         {
 162                 .bus_id = "ag71xx-mdio.0",
 163                 .mdio_addr = 0,
 164                 .platform_data = &rb2011_ar8327_data,
 165         },
 166 };
 167
 168 static void __init rb2011_wlan_init(void)
 169 {
 170         char *art_buf;
 171         u8 wlan_mac[ETH_ALEN];
 172
 173         art_buf = rb_get_wlan_data();
 174         if (art_buf == NULL)
 175                 return;
 176
 177         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 178         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 179
 180         kfree(art_buf);
 181 }
 182
 183 static void rb2011_nand_select_chip(int chip_no)
 184 {
 185         switch (chip_no) {
 186         case 0:
 187                 gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
 188                 break;
 189         default:
 190                 gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
 191                 break;
 192         }
 193         ndelay(500);
 194 }
 195
 196 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 197 static struct nand_ecclayout rb2011_nand_ecclayout = {
 198         .eccbytes       = 6,
 199         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 200         .oobavail       = 9,
 201         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 202 };
 203
 204 #else
 205
 206 static int rb2011_ooblayout_ecc(struct mtd_info *mtd, int section,
 207                                 struct mtd_oob_region *oobregion)
 208 {
 209         switch (section) {
 210         case 0:
 211                 oobregion->offset = 8;
 212                 oobregion->length = 3;
 213                 return 0;
 214         case 1:
 215                 oobregion->offset = 13;
 216                 oobregion->length = 3;
 217                 return 0;
 218         default:
 219                 return -ERANGE;
 220         }
 221 }
 222
 223 static int rb2011_ooblayout_free(struct mtd_info *mtd, int section,
 224                                  struct mtd_oob_region *oobregion)
 225 {
 226         switch (section) {
 227         case 0:
 228                 oobregion->offset = 0;
 229                 oobregion->length = 4;
 230                 return 0;
 231         case 1:
 232                 oobregion->offset = 4;
 233                 oobregion->length = 1;
 234                 return 0;
 235         case 2:
 236                 oobregion->offset = 6;
 237                 oobregion->length = 2;
 238                 return 0;
 239         case 3:
 240                 oobregion->offset = 11;
 241                 oobregion->length = 2;
 242                 return 0;
 243         default:
 244                 return -ERANGE;
 245         }
 246 }
 247
 248 static const struct mtd_ooblayout_ops rb2011_nand_ecclayout_ops = {
 249         .ecc = rb2011_ooblayout_ecc,
 250         .free = rb2011_ooblayout_free,
 251 };
 252 #endif /* < 4.6 */
 253
 254 static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
 255 {
 256 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 257         struct nand_chip *chip = mtd->priv;
 258 #endif
 259
 260         if (mtd->writesize == 512) {
 261                 /*
 262                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 263                  * will not be able to find the kernel that we load.
 264                  */
 265 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 266                 chip->ecc.layout = &rb2011_nand_ecclayout;
 267 #else
 268                 mtd_set_ooblayout(mtd, &rb2011_nand_ecclayout_ops);
 269 #endif
 270         }
 271
 272         return 0;
 273 }
 274
 275 static void __init rb2011_nand_init(void)
 276 {
 277         gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 278
 279         ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
 280         ath79_nfc_set_parts(rb2011_nand_partitions,
 281                             ARRAY_SIZE(rb2011_nand_partitions));
 282         ath79_nfc_set_select_chip(rb2011_nand_select_chip);
 283         ath79_nfc_set_swap_dma(true);
 284         ath79_register_nfc();
 285 }
 286
 287 static int rb2011_get_port_link(unsigned port)
 288 {
 289         if (port != 6)
 290                 return -EINVAL;
 291
 292         /* The Loss of signal line is active low */
 293         return !gpio_get_value(RB2011_GPIO_SFP_LOS);
 294 }
 295
 296 static void __init rb2011_sfp_init(void)
 297 {
 298         gpio_request_one(RB2011_GPIO_SFP_LOS, GPIOF_IN, "SFP LOS");
 299
 300         rb2011_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_SGMII;
 301
 302         rb2011_ar8327_data.pad6_cfg = &rb2011_ar8327_pad6_cfg;
 303
 304         rb2011_ar8327_sgmii_cfg.sgmii_ctrl = 0xc70167d0;
 305         rb2011_ar8327_sgmii_cfg.serdes_aen = true;
 306
 307         rb2011_ar8327_data.sgmii_cfg = &rb2011_ar8327_sgmii_cfg;
 308
 309         rb2011_ar8327_data.port6_cfg.force_link = 1;
 310         rb2011_ar8327_data.port6_cfg.speed = AR8327_PORT_SPEED_1000;
 311         rb2011_ar8327_data.port6_cfg.duplex = 1;
 312
 313         rb2011_ar8327_data.get_port_link = rb2011_get_port_link;
 314 }
 315
 316 static int __init rb2011_setup(u32 flags)
 317 {
 318         const struct rb_info *info;
 319         char buf[64];
 320
 321         info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
 322         if (!info)
 323                 return -ENODEV;
 324
 325         scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
 326                   (info->board_name) ? info->board_name : "");
 327         mips_set_machine_name(buf);
 328
 329         rb2011_init_partitions(info);
 330
 331         ath79_register_m25p80(&rb2011_spi_flash_data);
 332         rb2011_nand_init();
 333
 334         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 335                                    AR934X_ETH_CFG_RXD_DELAY |
 336                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 337
 338         ath79_register_mdio(1, 0x0);
 339         ath79_register_mdio(0, 0x0);
 340
 341         mdiobus_register_board_info(rb2011_mdio0_info,
 342                                     ARRAY_SIZE(rb2011_mdio0_info));
 343
 344         /* GMAC0 is connected to an ar8327 switch */
 345         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 346         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 347         ath79_eth0_data.phy_mask = BIT(0);
 348         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 349         ath79_eth0_pll_data.pll_1000 = 0x6f000000;
 350
 351         ath79_register_eth(0);
 352
 353         /* GMAC1 is connected to the internal switch */
 354         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
 355         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 356         ath79_eth1_data.speed = SPEED_1000;
 357         ath79_eth1_data.duplex = DUPLEX_FULL;
 358
 359         ath79_register_eth(1);
 360
 361         if (flags & RB2011_FLAG_SFP)
 362                 rb2011_sfp_init();
 363
 364         if (flags & RB2011_FLAG_WLAN)
 365                 rb2011_wlan_init();
 366
 367         if (flags & RB2011_FLAG_USB)
 368                 ath79_register_usb();
 369
 370         return 0;
 371 }
 372
 373 static void __init rb2011l_setup(void)
 374 {
 375         rb2011_setup(0);
 376 }
 377
 378 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011L, "2011L", rb2011l_setup);
 379
 380 static void __init rb2011us_setup(void)
 381 {
 382         rb2011_setup(RB2011_FLAG_SFP | RB2011_FLAG_USB);
 383 }
 384
 385 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011US, "2011US", rb2011us_setup);
 386
 387 static void __init rb2011r5_setup(void)
 388 {
 389         rb2011_setup(RB2011_FLAG_SFP | RB2011_FLAG_USB | RB2011_FLAG_WLAN);
 390 }
 391
 392 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011R5, "2011r5", rb2011r5_setup);
 393
 394 static void __init rb2011g_setup(void)
 395 {
 396         rb2011_setup(RB2011_FLAG_SFP |
 397                      RB2011_FLAG_USB |
 398                      RB2011_FLAG_WLAN);
 399 }
 400
 401 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011G, "2011G", rb2011g_setup);