| 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); |
| 211 | |
