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-wmac.h"
  36 #include "machtypes.h"
  37 #include "routerboot.h"
  38
  39 #define RB2011_GPIO_NAND_NCE    14
  40 #define RB2011_GPIO_SFP_LOS     21
  41
  42 #define RB_ROUTERBOOT_OFFSET    0x0000
  43 #define RB_ROUTERBOOT_MIN_SIZE  0xb000
  44 #define RB_HARD_CFG_SIZE        0x1000
  45 #define RB_BIOS_OFFSET          0xd000
  46 #define RB_BIOS_SIZE            0x1000
  47 #define RB_SOFT_CFG_OFFSET      0xf000
  48 #define RB_SOFT_CFG_SIZE        0x1000
  49
  50 #define RB_ART_SIZE             0x10000
  51
  52 static struct mtd_partition rb2011_spi_partitions[] = {
  53         {
  54                 .name           = "routerboot",
  55                 .offset         = RB_ROUTERBOOT_OFFSET,
  56                 .mask_flags     = MTD_WRITEABLE,
  57         }, {
  58                 .name           = "hard_config",
  59                 .size           = RB_HARD_CFG_SIZE,
  60                 .mask_flags     = MTD_WRITEABLE,
  61         }, {
  62                 .name           = "bios",
  63                 .offset         = RB_BIOS_OFFSET,
  64                 .size           = RB_BIOS_SIZE,
  65                 .mask_flags     = MTD_WRITEABLE,
  66         }, {
  67                 .name           = "soft_config",
  68                 .size           = RB_SOFT_CFG_SIZE,
  69         }
  70 };
  71
  72
  73 static void __init rb2011_init_partitions(void)
  74 {
  75         u8 *addr = (u8 *) KSEG1ADDR(0x1f000000);
  76         u32 next = RB_ROUTERBOOT_MIN_SIZE;
  77
  78         if (routerboot_find_magic(addr, 0x10000, &next, true))
  79                 printk(KERN_ERR "Warning: could not find a valid RouterBOOT hard config\n");
  80         rb2011_spi_partitions[0].size = next;
  81         rb2011_spi_partitions[1].offset = next;
  82
  83         next = RB_BIOS_OFFSET + RB_BIOS_SIZE;
  84         if (routerboot_find_magic(addr, 0x10000, &next, false))
  85                 printk(KERN_ERR "Warning: could not find a valid RouterBOOT soft config\n");
  86
  87         rb2011_spi_partitions[3].offset = next;
  88 }
  89
  90
  91 static struct mtd_partition rb2011_nand_partitions[] = {
  92         {
  93                 .name   = "booter",
  94                 .offset = 0,
  95                 .size   = (256 * 1024),
  96                 .mask_flags = MTD_WRITEABLE,
  97         },
  98         {
  99                 .name   = "kernel",
 100                 .offset = (256 * 1024),
 101                 .size   = (4 * 1024 * 1024) - (256 * 1024),
 102         },
 103         {
 104                 .name   = "rootfs",
 105                 .offset = MTDPART_OFS_NXTBLK,
 106                 .size   = MTDPART_SIZ_FULL,
 107         },
 108 };
 109
 110 static struct flash_platform_data rb2011_spi_flash_data = {
 111         .parts          = rb2011_spi_partitions,
 112         .nr_parts       = ARRAY_SIZE(rb2011_spi_partitions),
 113 };
 114
 115 static struct ar8327_pad_cfg rb2011_ar8327_pad0_cfg = {
 116         .mode = AR8327_PAD_MAC_RGMII,
 117         .txclk_delay_en = true,
 118         .rxclk_delay_en = true,
 119         .txclk_delay_sel = AR8327_CLK_DELAY_SEL3,
 120         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
 121 };
 122
 123 static struct ar8327_pad_cfg rb2011_ar8327_pad6_cfg;
 124 static struct ar8327_sgmii_cfg rb2011_ar8327_sgmii_cfg;
 125
 126 static struct ar8327_led_cfg rb2011_ar8327_led_cfg = {
 127         .led_ctrl0 = 0x0000c731,
 128         .led_ctrl1 = 0x00000000,
 129         .led_ctrl2 = 0x00000000,
 130         .led_ctrl3 = 0x0030c300,
 131         .open_drain = false,
 132 };
 133
 134 static struct ar8327_platform_data rb2011_ar8327_data = {
 135         .pad0_cfg = &rb2011_ar8327_pad0_cfg,
 136         .port0_cfg = {
 137                 .force_link = 1,
 138                 .speed = AR8327_PORT_SPEED_1000,
 139                 .duplex = 1,
 140                 .txpause = 1,
 141                 .rxpause = 1,
 142         },
 143         .led_cfg = &rb2011_ar8327_led_cfg,
 144 };
 145
 146 static struct mdio_board_info rb2011_mdio0_info[] = {
 147         {
 148                 .bus_id = "ag71xx-mdio.0",
 149                 .phy_addr = 0,
 150                 .platform_data = &rb2011_ar8327_data,
 151         },
 152 };
 153
 154 static void __init rb2011_wlan_init(void)
 155 {
 156         u8 *hard_cfg = (u8 *) KSEG1ADDR(0x1f000000);
 157         u16 tag_len;
 158         u8 *tag;
 159         char *art_buf;
 160         u8 wlan_mac[ETH_ALEN];
 161         int err;
 162
 163         hard_cfg += rb2011_spi_partitions[1].offset;
 164         err = routerboot_find_tag(hard_cfg, RB_HARD_CFG_SIZE, RB_ID_WLAN_DATA,
 165                                   &tag, &tag_len);
 166         if (err) {
 167                 pr_err("no calibration data found\n");
 168                 return;
 169         }
 170
 171         art_buf = kmalloc(RB_ART_SIZE, GFP_KERNEL);
 172         if (art_buf == NULL) {
 173                 pr_err("no memory for calibration data\n");
 174                 return;
 175         }
 176
 177         err = rle_decode((char *) tag, tag_len, art_buf, RB_ART_SIZE,
 178                          NULL, NULL);
 179         if (err) {
 180                 pr_err("unable to decode calibration data\n");
 181                 goto free;
 182         }
 183
 184         ath79_init_mac(wlan_mac, ath79_mac_base, 11);
 185         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 186
 187 free:
 188         kfree(art_buf);
 189 }
 190
 191 static void rb2011_nand_select_chip(int chip_no)
 192 {
 193         switch (chip_no) {
 194         case 0:
 195                 gpio_set_value(RB2011_GPIO_NAND_NCE, 0);
 196                 break;
 197         default:
 198                 gpio_set_value(RB2011_GPIO_NAND_NCE, 1);
 199                 break;
 200         }
 201         ndelay(500);
 202 }
 203
 204 static struct nand_ecclayout rb2011_nand_ecclayout = {
 205         .eccbytes       = 6,
 206         .eccpos         = { 8, 9, 10, 13, 14, 15 },
 207         .oobavail       = 9,
 208         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 209 };
 210
 211 static int rb2011_nand_scan_fixup(struct mtd_info *mtd)
 212 {
 213         struct nand_chip *chip = mtd->priv;
 214
 215         if (mtd->writesize == 512) {
 216                 /*
 217                  * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 218                  * will not be able to find the kernel that we load.
 219                  */
 220                 chip->ecc.layout = &rb2011_nand_ecclayout;
 221         }
 222
 223         return 0;
 224 }
 225
 226 static void __init rb2011_nand_init(void)
 227 {
 228         gpio_request_one(RB2011_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 229
 230         ath79_nfc_set_scan_fixup(rb2011_nand_scan_fixup);
 231         ath79_nfc_set_parts(rb2011_nand_partitions,
 232                             ARRAY_SIZE(rb2011_nand_partitions));
 233         ath79_nfc_set_select_chip(rb2011_nand_select_chip);
 234         ath79_nfc_set_swap_dma(true);
 235         ath79_register_nfc();
 236 }
 237
 238 static int rb2011_get_port_link(unsigned port)
 239 {
 240         if (port != 6)
 241                 return -EINVAL;
 242
 243         /* The Loss of signal line is active low */
 244         return !gpio_get_value(RB2011_GPIO_SFP_LOS);
 245 }
 246
 247 static void __init rb2011_sfp_init(void)
 248 {
 249         gpio_request_one(RB2011_GPIO_SFP_LOS, GPIOF_IN, "SFP LOS");
 250
 251         rb2011_ar8327_pad6_cfg.mode = AR8327_PAD_MAC_SGMII;
 252
 253         rb2011_ar8327_data.pad6_cfg = &rb2011_ar8327_pad6_cfg;
 254
 255         rb2011_ar8327_sgmii_cfg.sgmii_ctrl = 0xc70167d0;
 256         rb2011_ar8327_sgmii_cfg.serdes_aen = true;
 257
 258         rb2011_ar8327_data.sgmii_cfg = &rb2011_ar8327_sgmii_cfg;
 259
 260         rb2011_ar8327_data.port6_cfg.force_link = 1;
 261         rb2011_ar8327_data.port6_cfg.speed = AR8327_PORT_SPEED_1000;
 262         rb2011_ar8327_data.port6_cfg.duplex = 1;
 263
 264         rb2011_ar8327_data.get_port_link = rb2011_get_port_link;
 265 }
 266
 267 static void __init rb2011_setup(void)
 268 {
 269         rb2011_init_partitions();
 270
 271         ath79_register_m25p80(&rb2011_spi_flash_data);
 272         rb2011_nand_init();
 273
 274         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
 275                                    AR934X_ETH_CFG_SW_ONLY_MODE);
 276
 277         ath79_register_mdio(1, 0x0);
 278         ath79_register_mdio(0, 0x0);
 279
 280         mdiobus_register_board_info(rb2011_mdio0_info,
 281                                     ARRAY_SIZE(rb2011_mdio0_info));
 282
 283         /* GMAC0 is connected to an ar8327 switch */
 284         ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
 285         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 286         ath79_eth0_data.phy_mask = BIT(0);
 287         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 288         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 289
 290         ath79_register_eth(0);
 291
 292         /* GMAC1 is connected to the internal switch */
 293         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 5);
 294         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 295         ath79_eth1_data.speed = SPEED_1000;
 296         ath79_eth1_data.duplex = DUPLEX_FULL;
 297
 298         ath79_register_eth(1);
 299 }
 300
 301 MIPS_MACHINE(ATH79_MACH_RB_2011L, "2011L", "MikroTik RouterBOARD 2011L",
 302              rb2011_setup);
 303
 304 static void __init rb2011us_setup(void)
 305 {
 306         rb2011_setup();
 307         rb2011_sfp_init();
 308 }
 309
 310 MIPS_MACHINE(ATH79_MACH_RB_2011US, "2011US", "MikroTik RouterBOARD 2011UAS",
 311              rb2011us_setup);
 312
 313 static void __init rb2011g_setup(void)
 314 {
 315         rb2011_setup();
 316         rb2011_sfp_init();
 317         rb2011_wlan_init();
 318 }
 319
 320 MIPS_MACHINE(ATH79_MACH_RB_2011G, "2011G", "MikroTik RouterBOARD 2011UAS-2HnD",
 321              rb2011g_setup);