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