target/linux/ar71xx/files/arch/mips/ath79/mach-tew-673gru.c

   1 /*
   2  *  TRENDnet TEW-673GRU board support
   3  *
   4  *  Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify it
   7  *  under the terms of the GNU General Public License version 2 as published
   8  *  by the Free Software Foundation.
   9  */
  10
  11 #include <linux/platform_device.h>
  12 #include <linux/delay.h>
  13 #include <linux/rtl8366.h>
  14 #include <linux/spi/spi.h>
  15 #include <linux/spi/spi_gpio.h>
  16
  17 #include <asm/mach-ath79/ath79.h>
  18
  19 #include "dev-ap9x-pci.h"
  20 #include "dev-eth.h"
  21 #include "dev-gpio-buttons.h"
  22 #include "dev-leds-gpio.h"
  23 #include "dev-m25p80.h"
  24 #include "dev-usb.h"
  25 #include "machtypes.h"
  26
  27 #define TEW673GRU_GPIO_LCD_SCK          0
  28 #define TEW673GRU_GPIO_LCD_MOSI         1
  29 #define TEW673GRU_GPIO_LCD_MISO         2
  30 #define TEW673GRU_GPIO_LCD_CS           6
  31
  32 #define TEW673GRU_GPIO_LED_WPS          9
  33
  34 #define TEW673GRU_GPIO_BTN_RESET        3
  35 #define TEW673GRU_GPIO_BTN_WPS          8
  36
  37 #define TEW673GRU_GPIO_RTL8366_SDA      5
  38 #define TEW673GRU_GPIO_RTL8366_SCK      7
  39
  40 #define TEW673GRU_KEYS_POLL_INTERVAL    20 /* msecs */
  41 #define TEW673GRU_KEYS_DEBOUNCE_INTERVAL (3 * TEW673GRU_KEYS_POLL_INTERVAL)
  42
  43 #define TEW673GRU_CAL0_OFFSET           0x1000
  44 #define TEW673GRU_CAL1_OFFSET           0x5000
  45 #define TEW673GRU_MAC0_OFFSET           0xffa0
  46 #define TEW673GRU_MAC1_OFFSET           0xffb4
  47
  48 #define TEW673GRU_CAL_LOCATION_0        0x1f660000
  49 #define TEW673GRU_CAL_LOCATION_1        0x1f7f0000
  50
  51 static struct gpio_led tew673gru_leds_gpio[] __initdata = {
  52         {
  53                 .name           = "trendnet:blue:wps",
  54                 .gpio           = TEW673GRU_GPIO_LED_WPS,
  55                 .active_low     = 1,
  56         }
  57 };
  58
  59 static struct gpio_keys_button tew673gru_gpio_keys[] __initdata = {
  60         {
  61                 .desc           = "reset",
  62                 .type           = EV_KEY,
  63                 .code           = KEY_RESTART,
  64                 .debounce_interval = TEW673GRU_KEYS_DEBOUNCE_INTERVAL,
  65                 .gpio           = TEW673GRU_GPIO_BTN_RESET,
  66                 .active_low     = 1,
  67         }, {
  68                 .desc           = "wps",
  69                 .type           = EV_KEY,
  70                 .code           = KEY_WPS_BUTTON,
  71                 .debounce_interval = TEW673GRU_KEYS_DEBOUNCE_INTERVAL,
  72                 .gpio           = TEW673GRU_GPIO_BTN_WPS,
  73                 .active_low     = 1,
  74         }
  75 };
  76
  77 static struct rtl8366_initval tew673gru_rtl8366s_initvals[] = {
  78         { .reg = 0x06, .val = 0x0108 },
  79 };
  80
  81 static struct rtl8366_platform_data tew673gru_rtl8366s_data = {
  82         .gpio_sda       = TEW673GRU_GPIO_RTL8366_SDA,
  83         .gpio_sck       = TEW673GRU_GPIO_RTL8366_SCK,
  84         .num_initvals   = ARRAY_SIZE(tew673gru_rtl8366s_initvals),
  85         .initvals       = tew673gru_rtl8366s_initvals,
  86 };
  87
  88 static struct platform_device tew673gru_rtl8366s_device = {
  89         .name           = RTL8366S_DRIVER_NAME,
  90         .id             = -1,
  91         .dev = {
  92                 .platform_data  = &tew673gru_rtl8366s_data,
  93         }
  94 };
  95
  96 static struct spi_board_info tew673gru_spi_info[] = {
  97         {
  98                 .bus_num        = 1,
  99                 .chip_select    = 0,
 100                 .max_speed_hz   = 400000,
 101                 .modalias       = "spidev",
 102                 .mode           = SPI_MODE_2,
 103                 .controller_data = (void *) TEW673GRU_GPIO_LCD_CS,
 104         },
 105 };
 106
 107 static struct spi_gpio_platform_data tew673gru_spi_data = {
 108         .sck            = TEW673GRU_GPIO_LCD_SCK,
 109         .miso           = TEW673GRU_GPIO_LCD_MISO,
 110         .mosi           = TEW673GRU_GPIO_LCD_MOSI,
 111         .num_chipselect = 1,
 112 };
 113
 114 static struct platform_device tew673gru_spi_device = {
 115         .name           = "spi_gpio",
 116         .id             = 1,
 117         .dev = {
 118                 .platform_data = &tew673gru_spi_data,
 119         },
 120 };
 121
 122 static void tew673gru_read_ascii_mac(u8 *dest, u8 *src)
 123 {
 124         int ret;
 125
 126         ret = sscanf(src, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
 127                      &dest[0], &dest[1], &dest[2],
 128                      &dest[3], &dest[4], &dest[5]);
 129
 130         if (ret != ETH_ALEN)
 131                 memset(dest, 0, ETH_ALEN);
 132 }
 133
 134 static bool __init tew673gru_is_caldata_valid(u8 *p)
 135 {
 136         u16 *magic0, *magic1;
 137
 138         magic0 = (u16 *)(p + TEW673GRU_CAL0_OFFSET);
 139         magic1 = (u16 *)(p + TEW673GRU_CAL1_OFFSET);
 140
 141         return (*magic0 == 0xa55a && *magic1 == 0xa55a);
 142 }
 143
 144 static void __init tew673gru_wlan_init(void)
 145 {
 146         u8 mac1[ETH_ALEN], mac2[ETH_ALEN];
 147         u8 *caldata;
 148
 149         caldata = (u8 *) KSEG1ADDR(TEW673GRU_CAL_LOCATION_0);
 150         if (!tew673gru_is_caldata_valid(caldata)) {
 151                 caldata = (u8 *)KSEG1ADDR(TEW673GRU_CAL_LOCATION_1);
 152                 if (!tew673gru_is_caldata_valid(caldata)) {
 153                         pr_err("no calibration data found\n");
 154                         return;
 155                 }
 156         }
 157
 158         tew673gru_read_ascii_mac(mac1, caldata + TEW673GRU_MAC0_OFFSET);
 159         tew673gru_read_ascii_mac(mac2, caldata + TEW673GRU_MAC1_OFFSET);
 160
 161         ath79_init_mac(ath79_eth0_data.mac_addr, mac1, 2);
 162         ath79_init_mac(ath79_eth1_data.mac_addr, mac1, 3);
 163
 164         ap9x_pci_setup_wmac_led_pin(0, 5);
 165         ap9x_pci_setup_wmac_led_pin(1, 5);
 166
 167         ap94_pci_init(caldata + TEW673GRU_CAL0_OFFSET, mac1,
 168                       caldata + TEW673GRU_CAL1_OFFSET, mac2);
 169 }
 170
 171 static void __init tew673gru_setup(void)
 172 {
 173         tew673gru_wlan_init();
 174
 175         ath79_register_mdio(0, 0x0);
 176
 177         ath79_eth0_data.mii_bus_dev = &tew673gru_rtl8366s_device.dev;
 178         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 179         ath79_eth0_data.speed = SPEED_1000;
 180         ath79_eth0_data.duplex = DUPLEX_FULL;
 181         ath79_eth0_pll_data.pll_1000 = 0x11110000;
 182
 183         ath79_eth1_data.mii_bus_dev = &tew673gru_rtl8366s_device.dev;
 184         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 185         ath79_eth1_data.phy_mask = 0x10;
 186         ath79_eth1_pll_data.pll_1000 = 0x11110000;
 187
 188         ath79_register_eth(0);
 189         ath79_register_eth(1);
 190
 191         ath79_register_m25p80(NULL);
 192
 193         ath79_register_leds_gpio(-1, ARRAY_SIZE(tew673gru_leds_gpio),
 194                                  tew673gru_leds_gpio);
 195
 196         ath79_register_gpio_keys_polled(-1, TEW673GRU_KEYS_POLL_INTERVAL,
 197                                         ARRAY_SIZE(tew673gru_gpio_keys),
 198                                         tew673gru_gpio_keys);
 199
 200         ath79_register_usb();
 201
 202         platform_device_register(&tew673gru_rtl8366s_device);
 203
 204         spi_register_board_info(tew673gru_spi_info,
 205                                 ARRAY_SIZE(tew673gru_spi_info));
 206         platform_device_register(&tew673gru_spi_device);
 207 }
 208
 209 MIPS_MACHINE(ATH79_MACH_TEW_673GRU, "TEW-673GRU", "TRENDnet TEW-673GRU",
 210              tew673gru_setup);