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
  27 #include <asm/prom.h>
  28 #include <asm/mach-ath79/ath79.h>
  29 #include <asm/mach-ath79/ar71xx_regs.h>
  30
  31 #include "common.h"
  32 #include "dev-eth.h"
  33 #include "dev-m25p80.h"
  34 #include "dev-nfc.h"
  35 #include "dev-usb.h"
  36 #include "dev-wmac.h"
  37 #include "machtypes.h"
  38 #include "routerboot.h"
  39
  40 #define RB2011_GPIO_NAND_NCE    14
  41 #define RB2011_GPIO_SFP_LOS     21
  42
  43 #define RB_ROUTERBOOT_OFFSET    0x0000
  44 #define RB_ROUTERBOOT_MIN_SIZE  0xb000
  45 #define RB_HARD_CFG_SIZE        0x1000
  46 #define RB_BIOS_OFFSET          0xd000
  47 #define RB_BIOS_SIZE            0x1000
  48 #define RB_SOFT_CFG_OFFSET      0xf000
  49 #define RB_SOFT_CFG_SIZE        0x1000
  50
  51 #define RB_ART_SIZE             0x10000
  52
  53 #define RB2011_FLAG_SFP         BIT(0)
  54 #define RB2011_FLAG_USB         BIT(1)
  55 #define RB2011_FLAG_WLAN        BIT(2)
  56
  57 static struct mtd_partition rb2011_spi_partitions[] = {
  58         {
  59                 .name           = "routerboot",
  60                 .offset         = RB_ROUTERBOOT_OFFSET,
  61                 .mask_flags     = MTD_WRITEABLE,
  62         }, {
  63                 .name           = "hard_config",
  64                 .size           = RB_HARD_CFG_SIZE,
  65                 .mask_flags     = MTD_WRITEABLE,
  66         }, {
  67                 .name           = "bios",
  68                 .offset         = RB_BIOS_OFFSET,
  69                 .size           = RB_BIOS_SIZE,
  70                 .mask_flags     = MTD_WRITEABLE,
  71         }, {
  72                 .name           = "soft_config",
  73                 .size           = RB_SOFT_CFG_SIZE,
  74         }
  75 };
  76
  77 static void __init rb2011_init_partitions(const struct rb_info *info)
  78 {
  79         rb2011_spi_partitions[0].size = info->hard_cfg_offs;
  80         rb2011_spi_partitions[1].offset = info->hard_cfg_offs;
  81         rb2011_spi_partitions[3].offset = info->soft_cfg_offs;
  82 }
  83
  84 static struct mtd_partition rb2011_nand_partitions[] = {
  85         {
  86                 .name   = "booter",
  87                 .offset = 0,
  88                 .size   = (256 * 1024),
  89                 .mask_flags = MTD_WRITEABLE,
  90         },
  91         {
  92                 .name   = "kernel",
  93                 .offset = (256 * 1024),
  94                 .size   = (4 * 1024 * 1024) - (256 * 1024),
  95         },
  96         {
  97                 .name   = "rootfs",
  98                 .offset = MTDPART_OFS_NXTBLK,
  99                 .size   = MTDPART_SIZ_FULL,
 100         },
 101 };
 102
 103 static struct flash_platform_data rb2011_spi_flash_data = {
 104         .parts          = rb2011_spi_partitions,
 105         .nr_parts       = ARRAY_SIZE(rb2011_spi_partitions),
 106 };
 107
 108 static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = {
 109         .mode = AR8327_PAD_MAC_RGMII,
 110         .txclk_delay_en = true,
 111         .rxclk_delay_en = true,
 112         .txclk_delay_sel = AR8327_CLK_DELAY_SEL3,
 113         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
 114 };
 115
 116 static struct ar8327_pad_cfg rb2011_ar8327_pad6_cfg;
 117 static struct ar8327_sgmii_cfg rb2011_ar8327_sgmii_cfg;
 118
 119 static struct ar8327_led_cfg rb2011_ar8327_led_cfg = {
 120         .led_ctrl0 = 0x0000c731,
 121         .led_ctrl1 = 0x00000000,
 122         .led_ctrl2 = 0x00000000,
 123         .led_ctrl3 = 0x0030c300,
 124         .open_drain = false,
 125 };
 126
 127 static struct ar8327_platform_data rb2011_ar8327_data = {
 128         .pad0_cfg = &rb2011_ar8327_pad0_cfg,
 129         .port0_cfg = {
 130                 .force_link = 1,
 131                 .speed = AR8327_PORT_SPEED_1000,
 132                 .duplex = 1,
 133                 .txpause = 1,
 134                 .rxpause = 1,
 135         },
 136         .led_cfg = &rb2011_ar8327_led_cfg,
 137 };
 138
 139 static struct mdio_board_info rb2011_mdio0_info[] = {
 140         {
 141                 .bus_id = "ag71xx-mdio.0",
 142                 .phy_addr = 0,
 143                 .platform_data = &rb2011_ar8327_data,
 144         },
 145 };
 146
 147 static void __init rb2011_wlan_init(void)
 148 {
 149         char *art_buf;
 150         u8 wlan_mac[ETH_ALEN];
 151
 152         art_buf = rb_get_wlan_data();
 153         if (art_buf == NULL)
 154                 return;
 155
 156         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 157         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 158
 159         kfree(art_buf);
 160 }
 161
 162 static void rb2011_nand_select_chip(int chip_no)
 163 {
 164         switch (chip_no) {
 165         case 0:
 166                 gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
 167                 break;
 168         default:
 169                 gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
 170                 break;
 171         }
 172         ndelay(500);
 173 }
 174
 175 static struct nand_ecclayout rb2011_nand_ecclayout = {
 176         .eccbytes       = 6,
 177         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 178         .oobavail       = 9,
 179         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 180 };
 181
 182 static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
 183 {
 184         struct nand_chip *chip = mtd->priv;
 185
 186         if (mtd->writesize == 512) {
 187                 /*
 188                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 189                  * will not be able to find the kernel that we load.
 190                  */
 191                 chip->ecc.layout = &rb2011_nand_ecclayout;
 192         }
 193
 194         return 0;
 195 }
 196
 197 static void __init rb2011_nand_init(void)
 198 {
 199         gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 200
 201         ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
 202         ath79_nfc_set_parts(rb2011_nand_partitions,
 203                             ARRAY_SIZE(rb2011_nand_partitions));
 204         ath79_nfc_set_select_chip(rb2011_nand_select_chip);
 205         ath79_nfc_set_swap_dma(true);
 206         ath79_register_nfc();
 207 }
 208
 209 static int rb2011_get_port_link(unsigned port)
 210 {
 211         if (port != 6)
 212                 return -EINVAL;
 213
 214         /* The Loss of signal line is active low */
 215         return !gpio_get_value(RB2011_GPIO_SFP_LOS);
 216 }
 217
 218 static void __init rb2011_sfp_init(void)
 219 {
 220         gpio_request_one(RB2011_GPIO_SFP_LOS, GPIOF_IN, "SFP LOS");
 221
 222         rb2011_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_SGMII;
 223
 224         rb2011_ar8327_data.pad6_cfg = &rb2011_ar8327_pad6_cfg;
 225
 226         rb2011_ar8327_sgmii_cfg.sgmii_ctrl = 0xc70167d0;
 227         rb2011_ar8327_sgmii_cfg.serdes_aen = true;
 228
 229         rb2011_ar8327_data.sgmii_cfg = &rb2011_ar8327_sgmii_cfg;
 230
 231         rb2011_ar8327_data.port6_cfg.force_link = 1;
 232         rb2011_ar8327_data.port6_cfg.speed = AR8327_PORT_SPEED_1000;
 233         rb2011_ar8327_data.port6_cfg.duplex = 1;
 234
 235         rb2011_ar8327_data.get_port_link = rb2011_get_port_link;
 236 }
 237
 238 static int __init rb2011_setup(u32 flags)
 239 {
 240         const struct rb_info *info;
 241         char buf[64];
 242
 243         info = rb_init_info((void *) KSEG1ADDR(0x1f000000), 0x10000);
 244         if (!info)
 245                 return -ENODEV;
 246
 247         scnprintf(buf, sizeof(buf), "Mikrotik RouterBOARD %s",
 248                   (info->board_name) ? info->board_name : "");
 249         mips_set_machine_name(buf);
 250
 251         rb2011_init_partitions(info);
 252
 253         ath79_register_m25p80(&rb2011_spi_flash_data);
 254         rb2011_nand_init();
 255
 256         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 257                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 258
 259         ath79_register_mdio(1, 0x0);
 260         ath79_register_mdio(0, 0x0);
 261
 262         mdiobus_register_board_info(rb2011_mdio0_info,
 263                                     ARRAY_SIZE(rb2011_mdio0_info));
 264
 265         /* GMAC0 is connected to an ar8327 switch */
 266         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 267         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 268         ath79_eth0_data.phy_mask = BIT(0);
 269         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 270         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 271
 272         ath79_register_eth(0);
 273
 274         /* GMAC1 is connected to the internal switch */
 275         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
 276         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 277         ath79_eth1_data.speed = SPEED_1000;
 278         ath79_eth1_data.duplex = DUPLEX_FULL;
 279
 280         ath79_register_eth(1);
 281
 282         if (flags & RB2011_FLAG_SFP)
 283                 rb2011_sfp_init();
 284
 285         if (flags & RB2011_FLAG_WLAN)
 286                 rb2011_wlan_init();
 287
 288         if (flags & RB2011_FLAG_USB)
 289                 ath79_register_usb();
 290
 291         return 0;
 292 }
 293
 294 static void __init rb2011l_setup(void)
 295 {
 296         rb2011_setup(0);
 297 }
 298
 299 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011L, "2011L", rb2011l_setup);
 300
 301 static void __init rb2011us_setup(void)
 302 {
 303         rb2011_setup(RB2011_FLAG_SFP | RB2011_FLAG_USB);
 304 }
 305
 306 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011US, "2011US", rb2011us_setup);
 307
 308 static void __init rb2011g_setup(void)
 309 {
 310         rb2011_setup(RB2011_FLAG_SFP |
 311                      RB2011_FLAG_USB |
 312                      RB2011_FLAG_WLAN);
 313 }
 314
 315 MIPS_MACHINE_NONAME(ATH79_MACH_RB_2011G, "2011G", rb2011g_setup);