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 #include <linux/mtd/nand.h>
  21 #include <linux/mtd/partitions.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/spi/flash.h>
  24 #include <linux/routerboot.h>
  25 #include <linux/gpio.h>
  26 #include <linux/version.h>
  27
  28 #include <asm/prom.h>
  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
  41 #define RB2011_GPIO_NAND_NCE    14
  42 #define RB2011_GPIO_SFP_LOS     21
  43
  44 #define RB_ROUTERBOOT_OFFSET    0x0000
  45 #define RB_ROUTERBOOT_MIN_SIZE  0xb000
  46 #define RB_HARD_CFG_SIZE        0x1000
  47 #define RB_BIOS_OFFSET          0xd000
  48 #define RB_BIOS_SIZE            0x1000
  49 #define RB_SOFT_CFG_OFFSET      0xf000
  50 #define RB_SOFT_CFG_SIZE        0x1000
  51
  52 #define RB_ART_SIZE             0x10000
  53
  54 #define RB2011_FLAG_SFP         BIT(0)
  55 #define RB2011_FLAG_USB         BIT(1)
  56 #define RB2011_FLAG_WLAN        BIT(2)
  57
  58 static struct mtd_partition rb2011_spi_partitions[] = {
  59         {
  60                 .name           = "routerboot",
  61                 .offset         = RB_ROUTERBOOT_OFFSET,
  62                 .mask_flags     = MTD_WRITEABLE,
  63         }, {
  64                 .name           = "hard_config",
  65                 .size           = RB_HARD_CFG_SIZE,
  66                 .mask_flags     = MTD_WRITEABLE,
  67         }, {
  68                 .name           = "bios",
  69                 .offset         = RB_BIOS_OFFSET,
  70                 .size           = RB_BIOS_SIZE,
  71                 .mask_flags     = MTD_WRITEABLE,
  72         }, {
  73                 .name           = "soft_config",
  74                 .size           = RB_SOFT_CFG_SIZE,
  75         }
  76 };
  77
  78 static void __init rb2011_init_partitions(const struct rb_info *info)
  79 {
  80         rb2011_spi_partitions[0].size = info->hard_cfg_offs;
  81         rb2011_spi_partitions[1].offset = info->hard_cfg_offs;
  82         rb2011_spi_partitions[3].offset = info->soft_cfg_offs;
  83 }
  84
  85 static struct mtd_partition rb2011_nand_partitions[] = {
  86         {
  87                 .name   = "booter",
  88                 .offset = 0,
  89                 .size   = (256 * 1024),
  90                 .mask_flags = MTD_WRITEABLE,
  91         },
  92         {
  93                 .name   = "kernel",
  94                 .offset = (256 * 1024),
  95                 .size   = (4 * 1024 * 1024) - (256 * 1024),
  96         },
  97         {
  98                 .name   = "ubi",
  99                 .offset = MTDPART_OFS_NXTBLK,
 100                 .size   = MTDPART_SIZ_FULL,
 101         },
 102 };
 103
 104 static struct flash_platform_data rb2011_spi_flash_data = {
 105         .parts          = rb2011_spi_partitions,
 106         .nr_parts       = ARRAY_SIZE(rb2011_spi_partitions),
 107 };
 108
 109 static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = {
 110         .mode = AR8327_PAD_MAC_RGMII,
 111         .txclk_delay_en = true,
 112         .rxclk_delay_en = true,
 113         .txclk_delay_sel = AR8327_CLK_DELAY_SEL3,
 114         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
 115 };
 116
 117 static struct ar8327_pad_cfg rb2011_ar8327_pad6_cfg;
 118 static struct ar8327_sgmii_cfg rb2011_ar8327_sgmii_cfg;
 119
 120 static struct ar8327_led_cfg rb2011_ar8327_led_cfg = {
 121         .led_ctrl0 = 0xc731c731,
 122         .led_ctrl1 = 0x00000000,
 123         .led_ctrl2 = 0x00000000,
 124         .led_ctrl3 = 0x0030c300,
 125         .open_drain = false,
 126 };
 127
 128 static const struct ar8327_led_info rb2011_ar8327_leds[] __initconst = {
 129         AR8327_LED_INFO(PHY0_0, HW, "rb:green:eth1"),
 130         AR8327_LED_INFO(PHY1_0, HW, "rb:green:eth2"),
 131         AR8327_LED_INFO(PHY2_0, HW, "rb:green:eth3"),
 132         AR8327_LED_INFO(PHY3_0, HW, "rb:green:eth4"),
 133         AR8327_LED_INFO(PHY4_0, HW, "rb:green:eth5"),
 134         AR8327_LED_INFO(PHY0_1, SW, "rb:green:eth6"),
 135         AR8327_LED_INFO(PHY1_1, SW, "rb:green:eth7"),
 136         AR8327_LED_INFO(PHY2_1, SW, "rb:green:eth8"),
 137         AR8327_LED_INFO(PHY3_1, SW, "rb:green:eth9"),
 138         AR8327_LED_INFO(PHY4_1, SW, "rb:green:eth10"),
 139         AR8327_LED_INFO(PHY4_2, SW, "rb:green:usr"),
 140 };
 141
 142 static struct ar8327_platform_data rb2011_ar8327_data = {
 143         .pad0_cfg = &rb2011_ar8327_pad0_cfg,
 144         .port0_cfg = {
 145                 .force_link = 1,
 146                 .speed = AR8327_PORT_SPEED_1000,
 147                 .duplex = 1,
 148                 .txpause = 1,
 149                 .rxpause = 1,
 150         },
 151         .led_cfg = &rb2011_ar8327_led_cfg,
 152         .num_leds = ARRAY_SIZE(rb2011_ar8327_leds),
 153         .leds = rb2011_ar8327_leds,
 154 };
 155
 156 static struct mdio_board_info rb2011_mdio0_info[] = {
 157         {
 158                 .bus_id = "ag71xx-mdio.0",
 159                 .phy_addr = 0,
 160                 .platform_data = &rb2011_ar8327_data,
 161         },
 162 };
 163
 164 static void __init rb2011_wlan_init(void)
 165 {
 166         char *art_buf;
 167         u8 wlan_mac[ETH_ALEN];
 168
 169         art_buf = rb_get_wlan_data();
 170         if (art_buf == NULL)
 171                 return;
 172
 173         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 174         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 175
 176         kfree(art_buf);
 177 }
 178
 179 static void rb2011_nand_select_chip(int chip_no)
 180 {
 181         switch (chip_no) {
 182         case 0:
 183                 gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
 184                 break;
 185         default:
 186                 gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
 187                 break;
 188         }
 189         ndelay(500);
 190 }
 191
 192 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 193 static struct nand_ecclayout rb2011_nand_ecclayout = {
 194         .eccbytes       = 6,
 195         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 196         .oobavail       = 9,
 197         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 198 };
 199
 200 #else
 201
 202 static int rb2011_ooblayout_ecc(struct mtd_info *mtd, int section,
 203                                 struct mtd_oob_region *oobregion)
 204 {
 205         switch (section) {
 206         case 0:
 207                 oobregion->offset = 8;
 208                 oobregion->length = 3;
 209                 return 0;
 210         case 1:
 211                 oobregion->offset = 13;
 212                 oobregion->length = 3;
 213                 return 0;
 214         default:
 215                 return -ERANGE;
 216         }
 217 }
 218
 219 static int rb2011_ooblayout_free(struct mtd_info *mtd, int section,
 220                                  struct mtd_oob_region *oobregion)
 221 {
 222         switch (section) {
 223         case 0:
 224                 oobregion->offset = 0;
 225                 oobregion->length = 4;
 226                 return 0;
 227         case 1:
 228                 oobregion->offset = 4;
 229                 oobregion->length = 1;
 230                 return 0;
 231         case 2:
 232                 oobregion->offset = 6;
 233                 oobregion->length = 2;
 234                 return 0;
 235         case 3:
 236                 oobregion->offset = 11;
 237                 oobregion->length = 2;
 238                 return 0;
 239         default:
 240                 return -ERANGE;
 241         }
 242 }
 243
 244 static const struct mtd_ooblayout_ops rb2011_nand_ecclayout_ops = {
 245         .ecc = rb2011_ooblayout_ecc,
 246         .free = rb2011_ooblayout_free,
 247 };
 248 #endif /* < 4.6 */
 249
 250 static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
 251 {
 252 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 253         struct nand_chip *chip = mtd->priv;
 254 #endif
 255
 256         if (mtd->writesize == 512) {
 257                 /*
 258                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 259                  * will not be able to find the kernel that we load.
 260                  */
 261 #if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
 262                 chip->ecc.layout = &rb2011_nand_ecclayout;
 263 #else
 264                 mtd_set_ooblayout(mtd, &rb2011_nand_ecclayout_ops);
 265 #endif
 266         }
 267
 268         return 0;
 269 }
 270
 271 static void __init rb2011_nand_init(void)
 272 {
 273         gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 274
 275         ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
 276         ath79_nfc_set_parts(rb2011_nand_partitions,
 277                             ARRAY_SIZE(rb2011_nand_partitions));
 278         ath79_nfc_set_select_chip(rb2011_nand_select_chip);
 279         ath79_nfc_set_swap_dma(true);
 280         ath79_register_nfc();
 281 }
 282
 283 static int rb2011_get_port_link(unsigned port)
 284 {
 285         if (port != 6)
 286                 return -EINVAL;
 287
 288         /* The Loss of signal line is active low */
 289         return !gpio_get_value(RB2011_GPIO_SFP_LOS);
 290 }
 291
 292 static void __init rb2011_sfp_init(void)
 293 {
 294         gpio_request_one(RB2011_GPIO_SFP_LOS, GPIOF_IN, "SFP LOS");
 295
 296         rb2011_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_SGMII;
 297
 298         rb2011_ar8327_data.pad6_cfg = &rb2011_ar8327_pad6_cfg;
 299
 300         rb2011_ar8327_sgmii_cfg.sgmii_ctrl = 0xc70167d0;
 301         rb2011_ar8327_sgmii_cfg.serdes_aen = true;
 302
 303         rb2011_ar8327_data.sgmii_cfg = &rb2011_ar8327_sgmii_cfg;
 304
 305         rb2011_ar8327_data.port6_cfg.force_link = 1;
 306         rb2011_ar8327_data.port6_cfg.speed = AR8327_PORT_SPEED_1000;
 307         rb2011_ar8327_data.port6_cfg.duplex = 1;
 308
 309         rb2011_ar8327_data.get_port_link = rb2011_get_port_link;
 310 }
 311
 312 static int __init rb2011_setup(u32 flags)
 313 {
 314         const struct rb_info *info;
 315         char buf[64];
 316
 317         info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
 318         if (!info)
 319                 return -ENODEV;
 320
 321         scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
 322                   (info->board_name) ? info->board_name : "");
 323         mips_set_machine_name(buf);
 324
 325         rb2011_init_partitions(info);
 326
 327         ath79_register_m25p80(&rb2011_spi_flash_data);
 328         rb2011_nand_init();
 329
 330         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 331                                    AR934X_ETH_CFG_RXD_DELAY |
 332                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 333
 334         ath79_register_mdio(1, 0x0);
 335         ath79_register_mdio(0, 0x0);
 336
 337         mdiobus_register_board_info(rb2011_mdio0_info,
 338                                     ARRAY_SIZE(rb2011_mdio0_info));
 339
 340         /* GMAC0 is connected to an ar8327 switch */
 341         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 342         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 343         ath79_eth0_data.phy_mask = BIT(0);
 344         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 345         ath79_eth0_pll_data.pll_1000 = 0x6f000000;
 346
 347         ath79_register_eth(0);
 348
 349         /* GMAC1 is connected to the internal switch */
 350         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
 351         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 352         ath79_eth1_data.speed = SPEED_1000;
 353         ath79_eth1_data.duplex = DUPLEX_FULL;
 354
 355         ath79_register_eth(1);
 356
 357         if (flags & RB2011_FLAG_SFP)
 358                 rb2011_sfp_init();
 359
 360         if (flags & RB2011_FLAG_WLAN)
 361                 rb2011_wlan_init();
 362
 363         if (flags & RB2011_FLAG_USB)
 364                 ath79_register_usb();
 365
 366         return 0;
 367 }
 368
 369 static void __init rb2011l_setup(void)
 370 {
 371         rb2011_setup(0);
 372 }
 373
 374 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011L, "2011L", rb2011l_setup);
 375
 376 static void __init rb2011us_setup(void)
 377 {
 378         rb2011_setup(RB2011_FLAG_SFP | RB2011_FLAG_USB);
 379 }
 380
 381 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011US, "2011US", rb2011us_setup);
 382
 383 static void __init rb2011r5_setup(void)
 384 {
 385         rb2011_setup(RB2011_FLAG_SFP | RB2011_FLAG_USB | RB2011_FLAG_WLAN);
 386 }
 387
 388 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011R5, "2011r5", rb2011r5_setup);
 389
 390 static void __init rb2011g_setup(void)
 391 {
 392         rb2011_setup(RB2011_FLAG_SFP |
 393                      RB2011_FLAG_USB |
 394                      RB2011_FLAG_WLAN);
 395 }
 396
 397 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011G, "2011G", rb2011g_setup);