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/rle.h>
  25 #include <linux/routerboot.h>
  26 #include <linux/gpio.h>
  27
  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 static struct mtd_partition rb2011_spi_partitions[] = {
  54         {
  55                 .name           = "routerboot",
  56                 .offset         = RB_ROUTERBOOT_OFFSET,
  57                 .mask_flags     = MTD_WRITEABLE,
  58         }, {
  59                 .name           = "hard_config",
  60                 .size           = RB_HARD_CFG_SIZE,
  61                 .mask_flags     = MTD_WRITEABLE,
  62         }, {
  63                 .name           = "bios",
  64                 .offset         = RB_BIOS_OFFSET,
  65                 .size           = RB_BIOS_SIZE,
  66                 .mask_flags     = MTD_WRITEABLE,
  67         }, {
  68                 .name           = "soft_config",
  69                 .size           = RB_SOFT_CFG_SIZE,
  70         }
  71 };
  72
  73
  74 static void __init rb2011_init_partitions(void)
  75 {
  76         u8 *addr = (u8 *) KSEG1ADDR(0x1f000000);
  77         u32 next = RB_ROUTERBOOT_MIN_SIZE;
  78
  79         if (routerboot_find_magic(addr, 0x10000, &next, true))
  80                 printk(KERN_ERR "Warning: could not find a valid RouterBOOT hard config\n");
  81         rb2011_spi_partitions[0].size = next;
  82         rb2011_spi_partitions[1].offset = next;
  83
  84         next = RB_BIOS_OFFSET + RB_BIOS_SIZE;
  85         if (routerboot_find_magic(addr, 0x10000, &next, false))
  86                 printk(KERN_ERR "Warning: could not find a valid RouterBOOT soft config\n");
  87
  88         rb2011_spi_partitions[3].offset = next;
  89 }
  90
  91
  92 static struct mtd_partition rb2011_nand_partitions[] = {
  93         {
  94                 .name   = "booter",
  95                 .offset = 0,
  96                 .size   = (256 * 1024),
  97                 .mask_flags = MTD_WRITEABLE,
  98         },
  99         {
 100                 .name   = "kernel",
 101                 .offset = (256 * 1024),
 102                 .size   = (4 * 1024 * 1024) - (256 * 1024),
 103         },
 104         {
 105                 .name   = "rootfs",
 106                 .offset = MTDPART_OFS_NXTBLK,
 107                 .size   = MTDPART_SIZ_FULL,
 108         },
 109 };
 110
 111 static struct flash_platform_data rb2011_spi_flash_data = {
 112         .parts          = rb2011_spi_partitions,
 113         .nr_parts       = ARRAY_SIZE(rb2011_spi_partitions),
 114 };
 115
 116 static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = {
 117         .mode = AR8327_PAD_MAC_RGMII,
 118         .txclk_delay_en = true,
 119         .rxclk_delay_en = true,
 120         .txclk_delay_sel = AR8327_CLK_DELAY_SEL3,
 121         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
 122 };
 123
 124 static struct ar8327_pad_cfg rb2011_ar8327_pad6_cfg;
 125 static struct ar8327_sgmii_cfg rb2011_ar8327_sgmii_cfg;
 126
 127 static struct ar8327_led_cfg rb2011_ar8327_led_cfg = {
 128         .led_ctrl0 = 0x0000c731,
 129         .led_ctrl1 = 0x00000000,
 130         .led_ctrl2 = 0x00000000,
 131         .led_ctrl3 = 0x0030c300,
 132         .open_drain = false,
 133 };
 134
 135 static struct ar8327_platform_data rb2011_ar8327_data = {
 136         .pad0_cfg = &rb2011_ar8327_pad0_cfg,
 137         .port0_cfg = {
 138                 .force_link = 1,
 139                 .speed = AR8327_PORT_SPEED_1000,
 140                 .duplex = 1,
 141                 .txpause = 1,
 142                 .rxpause = 1,
 143         },
 144         .led_cfg = &rb2011_ar8327_led_cfg,
 145 };
 146
 147 static struct mdio_board_info rb2011_mdio0_info[] = {
 148         {
 149                 .bus_id = "ag71xx-mdio.0",
 150                 .phy_addr = 0,
 151                 .platform_data = &rb2011_ar8327_data,
 152         },
 153 };
 154
 155 static void __init rb2011_wlan_init(void)
 156 {
 157         u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000);
 158         u16 tag_len;
 159         u8 *tag;
 160         char *art_buf;
 161         u8 wlan_mac[ETH_ALEN];
 162         int err;
 163
 164         hard_cfg += rb2011_spi_partitions[1].offset;
 165         err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA,
 166                                   &tag, &tag_len);
 167         if (err) {
 168                 pr_err("no calibration data found\n");
 169                 return;
 170         }
 171
 172         art_buf = kmalloc(RB_ART_SIZE, GFP_KERNEL);
 173         if (art_buf == NULL) {
 174                 pr_err("no memory for calibration data\n");
 175                 return;
 176         }
 177
 178         err = rle_decode((char *) tag, tag_len, art_buf, RB_ART_SIZE,
 179                          NULL, NULL);
 180         if (err) {
 181                 pr_err("unable to decode calibration data\n");
 182                 goto free;
 183         }
 184
 185         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 186         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 187
 188 free:
 189         kfree(art_buf);
 190 }
 191
 192 static void rb2011_nand_select_chip(int chip_no)
 193 {
 194         switch (chip_no) {
 195         case 0:
 196                 gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
 197                 break;
 198         default:
 199                 gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
 200                 break;
 201         }
 202         ndelay(500);
 203 }
 204
 205 static struct nand_ecclayout rb2011_nand_ecclayout = {
 206         .eccbytes       = 6,
 207         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 208         .oobavail       = 9,
 209         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 210 };
 211
 212 static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
 213 {
 214         struct nand_chip *chip = mtd->priv;
 215
 216         if (mtd->writesize == 512) {
 217                 /*
 218                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 219                  * will not be able to find the kernel that we load.
 220                  */
 221                 chip->ecc.layout = &rb2011_nand_ecclayout;
 222         }
 223
 224         return 0;
 225 }
 226
 227 static void __init rb2011_nand_init(void)
 228 {
 229         gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 230
 231         ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
 232         ath79_nfc_set_parts(rb2011_nand_partitions,
 233                             ARRAY_SIZE(rb2011_nand_partitions));
 234         ath79_nfc_set_select_chip(rb2011_nand_select_chip);
 235         ath79_nfc_set_swap_dma(true);
 236         ath79_register_nfc();
 237 }
 238
 239 static int rb2011_get_port_link(unsigned port)
 240 {
 241         if (port != 6)
 242                 return -EINVAL;
 243
 244         /* The Loss of signal line is active low */
 245         return !gpio_get_value(RB2011_GPIO_SFP_LOS);
 246 }
 247
 248 static void __init rb2011_sfp_init(void)
 249 {
 250         gpio_request_one(RB2011_GPIO_SFP_LOS, GPIOF_IN, "SFP LOS");
 251
 252         rb2011_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_SGMII;
 253
 254         rb2011_ar8327_data.pad6_cfg = &rb2011_ar8327_pad6_cfg;
 255
 256         rb2011_ar8327_sgmii_cfg.sgmii_ctrl = 0xc70167d0;
 257         rb2011_ar8327_sgmii_cfg.serdes_aen = true;
 258
 259         rb2011_ar8327_data.sgmii_cfg = &rb2011_ar8327_sgmii_cfg;
 260
 261         rb2011_ar8327_data.port6_cfg.force_link = 1;
 262         rb2011_ar8327_data.port6_cfg.speed = AR8327_PORT_SPEED_1000;
 263         rb2011_ar8327_data.port6_cfg.duplex = 1;
 264
 265         rb2011_ar8327_data.get_port_link = rb2011_get_port_link;
 266 }
 267
 268 static void __init rb2011_setup(void)
 269 {
 270         rb2011_init_partitions();
 271
 272         ath79_register_m25p80(&rb2011_spi_flash_data);
 273         rb2011_nand_init();
 274
 275         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 276                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 277
 278         ath79_register_mdio(1, 0x0);
 279         ath79_register_mdio(0, 0x0);
 280
 281         mdiobus_register_board_info(rb2011_mdio0_info,
 282                                     ARRAY_SIZE(rb2011_mdio0_info));
 283
 284         /* GMAC0 is connected to an ar8327 switch */
 285         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 286         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 287         ath79_eth0_data.phy_mask = BIT(0);
 288         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 289         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 290
 291         ath79_register_eth(0);
 292
 293         /* GMAC1 is connected to the internal switch */
 294         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
 295         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 296         ath79_eth1_data.speed = SPEED_1000;
 297         ath79_eth1_data.duplex = DUPLEX_FULL;
 298
 299         ath79_register_eth(1);
 300 }
 301
 302 MIPS_MACHINE(ATH79_MACH_RB_2011L, "2011L", "MikroTik RouterBOARD 2011L",
 303              rb2011_setup);
 304
 305 static void __init rb2011us_setup(void)
 306 {
 307         rb2011_setup();
 308         rb2011_sfp_init();
 309
 310         ath79_register_usb();
 311 }
 312
 313 MIPS_MACHINE(ATH79_MACH_RB_2011US, "2011US", "MikroTik RouterBOARD 2011UAS",
 314              rb2011us_setup);
 315
 316 static void __init rb2011g_setup(void)
 317 {
 318         rb2011_setup();
 319         rb2011_sfp_init();
 320         rb2011_wlan_init();
 321
 322         ath79_register_usb();
 323 }
 324
 325 MIPS_MACHINE(ATH79_MACH_RB_2011G, "2011G", "MikroTik RouterBOARD 2011UAS-2HnD",
 326              rb2011g_setup);