target/linux/ar71xx/files/arch/mips/ath79/mach-rbsxtlite.c

   1 /*
   2  *  MikroTik RouterBOARD SXT Lite support
   3  *
   4  *  Copyright (C) 2012 Stijn Tintel <stijn@linux-ipv6.be>
   5  *  Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
   6  *  Copyright (C) 2013 Vyacheslav Adamanov <adamanov@gmail.com>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify it
   9  *  under the terms of the GNU General Public License version 2 as published
  10  *  by the Free Software Foundation.
  11  */
  12
  13 #define pr_fmt(fmt) "sxtlite: " fmt
  14
  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/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 #include "common.h"
  31 #include "dev-ap9x-pci.h"
  32 #include "dev-gpio-buttons.h"
  33 #include "dev-leds-gpio.h"
  34 #include "dev-eth.h"
  35 #include "dev-m25p80.h"
  36 #include "dev-nfc.h"
  37 #include "dev-wmac.h"
  38 #include "dev-usb.h"
  39 #include "machtypes.h"
  40 #include "routerboot.h"
  41 #include <linux/ar8216_platform.h>
  42
  43 #define SXTLITE_GPIO_NAND_NCE  14
  44 #define SXTLITE_GPIO_LED_USER 3
  45 #define SXTLITE_GPIO_LED_1 13
  46 #define SXTLITE_GPIO_LED_2 12
  47 #define SXTLITE_GPIO_LED_3 4
  48 #define SXTLITE_GPIO_LED_4 21
  49 #define SXTLITE_GPIO_LED_5 18
  50 #define SXTLITE_GPIO_LED_POWER 11
  51
  52 #define SXTLITE_GPIO_BUZZER 19
  53
  54 #define SXTLITE_GPIO_BTN_RESET 15
  55
  56 #define SXTLITE_KEYS_POLL_INTERVAL 20
  57 #define SXTLITE_KEYS_DEBOUNCE_INTERVAL (3 * SXTLITE_KEYS_POLL_INTERVAL)
  58
  59 static struct mtd_partition rbsxtlite_nand_partitions[] = {
  60         {
  61                 .name   = "booter",
  62                 .offset = 0,
  63                 .size   = (256 * 1024),
  64                 .mask_flags = MTD_WRITEABLE,
  65         },
  66         {
  67                 .name   = "kernel",
  68                 .offset = (256 * 1024),
  69                 .size   = (4 * 1024 * 1024) - (256 * 1024),
  70         },
  71         {
  72                 .name   = "ubi",
  73                 .offset = MTDPART_OFS_NXTBLK,
  74                 .size   = MTDPART_SIZ_FULL,
  75         },
  76 };
  77
  78 static struct gpio_led rbsxtlite_leds_gpio[] __initdata = {
  79         {
  80                 .name           =       "rb:green:user",
  81                 .gpio           =       SXTLITE_GPIO_LED_USER,
  82                 .active_low     =       1,
  83         },
  84         {
  85                 .name           =       "rb:green:led1",
  86                 .gpio           =       SXTLITE_GPIO_LED_1,
  87                 .active_low     =       1,
  88         },
  89         {
  90                 .name           =       "rb:green:led2",
  91                 .gpio           =       SXTLITE_GPIO_LED_2,
  92                 .active_low     =       1,
  93         },
  94         {
  95                 .name           =       "rb:green:led3",
  96                 .gpio           =       SXTLITE_GPIO_LED_3,
  97                 .active_low     =       1,
  98         },
  99         {
 100                 .name           =       "rb:green:led4",
 101                 .gpio           =       SXTLITE_GPIO_LED_4,
 102                 .active_low     =       1,
 103         },
 104         {
 105                 .name           =       "rb:green:led5",
 106                 .gpio           =       SXTLITE_GPIO_LED_5,
 107                 .active_low     =       1,
 108         },
 109         {
 110                 .name           =       "rb:green:power",
 111                 .gpio           =       SXTLITE_GPIO_LED_POWER,
 112         },
 113 };
 114
 115 static struct gpio_keys_button rbsxtlite_gpio_keys[] __initdata = {
 116         {
 117                 .desc           =       "Reset button",
 118                 .type           =       EV_KEY,
 119                 .code           =       KEY_RESTART,
 120                 .debounce_interval      =       SXTLITE_KEYS_DEBOUNCE_INTERVAL,
 121                 .gpio           =       SXTLITE_GPIO_BTN_RESET,
 122                 .active_low     =       0,
 123         },
 124 };
 125
 126 static int __init rbsxtlite_rbinfo_init(void)
 127 {
 128         const struct rb_info *info;
 129
 130         info = rb_init_info((void *)(KSEG1ADDR(AR71XX_SPI_BASE)), 0x10000);
 131         if (!info)
 132                 return -EINVAL;
 133         return 0;
 134
 135 }
 136
 137 void __init rbsxtlite_wlan_init(void)
 138 {
 139         char *art_buf;
 140         u8 wlan_mac[ETH_ALEN];
 141
 142         art_buf = rb_get_wlan_data();
 143         if (art_buf == NULL)
 144                 return;
 145
 146         ath79_init_mac(wlan_mac, ath79_mac_base, 1);
 147         ath79_register_wmac(art_buf + 0x1000, wlan_mac);
 148
 149         kfree(art_buf);
 150 }
 151
 152 static void rbsxtlite_nand_select_chip(int chip_no)
 153 {
 154         switch (chip_no) {
 155         case 0:
 156                 gpio_set_value(SXTLITE_GPIO_NAND_NCE, 0);
 157                 break;
 158         default:
 159                 gpio_set_value(SXTLITE_GPIO_NAND_NCE, 1);
 160                 break;
 161         }
 162         ndelay(500);
 163 }
 164
 165 static struct nand_ecclayout rbsxtlite_nand_ecclayout = {
 166         .eccbytes       = 6,
 167         .eccpos  = { 8, 9, 10, 13, 14, 15 },
 168         .oobavail       = 9,
 169         .oobfree        = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
 170 };
 171
 172 static int rbsxtlite_nand_scan_fixup(struct mtd_info *mtd)
 173 {
 174         struct nand_chip *chip = mtd->priv;
 175
 176         if (mtd->writesize == 512) {
 177                 /*
 178                 * Use the OLD Yaffs-1 OOB layout, otherwise RouterBoot
 179                 * will not be able to find the kernel that we load.
 180                 */
 181                 chip->ecc.layout = &rbsxtlite_nand_ecclayout;
 182         }
 183
 184         return 0;
 185 }
 186
 187 void __init rbsxtlite_gpio_init(void)
 188 {
 189         gpio_request_one(SXTLITE_GPIO_NAND_NCE, GPIOF_OUT_INIT_HIGH, "NAND nCE");
 190 }
 191
 192 void __init rbsxtlite_nand_init(void)
 193 {
 194         ath79_nfc_set_scan_fixup(rbsxtlite_nand_scan_fixup);
 195         ath79_nfc_set_parts(rbsxtlite_nand_partitions,
 196                            ARRAY_SIZE(rbsxtlite_nand_partitions));
 197         ath79_nfc_set_select_chip(rbsxtlite_nand_select_chip);
 198         ath79_nfc_set_swap_dma(true);
 199         ath79_register_nfc();
 200 }
 201
 202
 203 static void __init rbsxtlite_setup(void)
 204 {
 205         if(rbsxtlite_rbinfo_init())
 206                 return;
 207         rbsxtlite_nand_init();
 208         rbsxtlite_wlan_init();
 209
 210         ath79_register_leds_gpio(-1, ARRAY_SIZE(rbsxtlite_leds_gpio),
 211                                  rbsxtlite_leds_gpio);
 212         ath79_register_gpio_keys_polled(-1, SXTLITE_KEYS_POLL_INTERVAL,
 213                                         ARRAY_SIZE(rbsxtlite_gpio_keys),
 214                                         rbsxtlite_gpio_keys);
 215
 216         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE);
 217
 218         ath79_register_mdio(1, 0x0);
 219
 220         /* GMAC0 is left unused */
 221
 222         /* GMAC1 is connected to MAC0 on the internal switch */
 223         /* The ethernet port connects to PHY P0, which connects to MAC1
 224            on the internal switch */
 225         ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 0);
 226         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 227         ath79_register_eth(1);
 228
 229
 230 }
 231
 232
 233 MIPS_MACHINE(ATH79_MACH_RB_SXTLITE2ND, "sxt2n", "Mikrotik RouterBOARD SXT Lite2",
 234             rbsxtlite_setup);
 235
 236 MIPS_MACHINE(ATH79_MACH_RB_SXTLITE5ND, "sxt5n", "Mikrotik RouterBOARD SXT Lite5",
 237             rbsxtlite_setup);
 238