target/linux/ar71xx/files/arch/mips/ath79/mach-tew-712br.c

   1 /*
   2  *  TRENDnet TEW-712BR 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/gpio.h>
  12
  13 #include <asm/mach-ath79/ath79.h>
  14 #include <asm/mach-ath79/ar71xx_regs.h>
  15
  16 #include "common.h"
  17 #include "dev-eth.h"
  18 #include "dev-gpio-buttons.h"
  19 #include "dev-leds-gpio.h"
  20 #include "dev-m25p80.h"
  21 #include "dev-wmac.h"
  22 #include "machtypes.h"
  23
  24 #define TEW_712BR_GPIO_BTN_WPS          11
  25 #define TEW_712BR_GPIO_BTN_RESET        12
  26
  27 #define TEW_712BR_GPIO_LED_LAN1         13
  28 #define TEW_712BR_GPIO_LED_LAN2         14
  29 #define TEW_712BR_GPIO_LED_LAN3         15
  30 #define TEW_712BR_GPIO_LED_LAN4         16
  31 #define TEW_712BR_GPIO_LED_POWER_GREEN  20
  32 #define TEW_712BR_GPIO_LED_POWER_ORANGE 27
  33 #define TEW_712BR_GPIO_LED_WAN_GREEN    17
  34 #define TEW_712BR_GPIO_LED_WAN_ORANGE   23
  35 #define TEW_712BR_GPIO_LED_WLAN         0
  36 #define TEW_712BR_GPIO_LED_WPS          26
  37
  38 #define TEW_712BR_GPIO_WAN_LED_ENABLE   1
  39
  40 #define TEW_712BR_KEYS_POLL_INTERVAL    20      /* msecs */
  41 #define TEW_712BR_KEYS_DEBOUNCE_INTERVAL (3 * TEW_712BR_KEYS_POLL_INTERVAL)
  42
  43 #define TEW_712BR_ART_ADDRESS           0x1f010000
  44 #define TEW_712BR_CALDATA_OFFSET        0x1000
  45 #define TEW_712BR_LAN_MAC_ADDRESS       0x1f020004
  46 #define TEW_712BR_WAN_MAC_ADDRESS       0x1f020016
  47
  48 static struct gpio_led tew_712br_leds_gpio[] __initdata = {
  49         {
  50                 .name           = "trendnet:green:lan1",
  51                 .gpio           = TEW_712BR_GPIO_LED_LAN1,
  52                 .active_low     = 0,
  53         }, {
  54                 .name           = "trendnet:green:lan2",
  55                 .gpio           = TEW_712BR_GPIO_LED_LAN2,
  56                 .active_low     = 0,
  57         }, {
  58                 .name           = "trendnet:green:lan3",
  59                 .gpio           = TEW_712BR_GPIO_LED_LAN3,
  60                 .active_low     = 0,
  61         }, {
  62                 .name           = "trendnet:green:lan4",
  63                 .gpio           = TEW_712BR_GPIO_LED_LAN4,
  64                 .active_low     = 0,
  65         }, {
  66                 .name           = "trendnet:blue:wps",
  67                 .gpio           = TEW_712BR_GPIO_LED_WPS,
  68                 .active_low     = 1,
  69         }, {
  70                 .name           = "trendnet:green:power",
  71                 .gpio           = TEW_712BR_GPIO_LED_POWER_GREEN,
  72                 .active_low     = 0,
  73         }, {
  74                 .name           = "trendnet:orange:power",
  75                 .gpio           = TEW_712BR_GPIO_LED_POWER_ORANGE,
  76                 .active_low     = 0,
  77         }, {
  78                 .name           = "trendnet:green:wan",
  79                 .gpio           = TEW_712BR_GPIO_LED_WAN_GREEN,
  80                 .active_low     = 1,
  81         }, {
  82                 .name           = "trendnet:orange:wan",
  83                 .gpio           = TEW_712BR_GPIO_LED_WAN_ORANGE,
  84                 .active_low     = 0,
  85         }, {
  86                 .name           = "trendnet:green:wlan",
  87                 .gpio           = TEW_712BR_GPIO_LED_WLAN,
  88                 .active_low     = 0,
  89         },
  90 };
  91
  92 static struct gpio_keys_button tew_712br_gpio_keys[] __initdata = {
  93         {
  94                 .desc           = "Reset button",
  95                 .type           = EV_KEY,
  96                 .code           = KEY_RESTART,
  97                 .debounce_interval = TEW_712BR_KEYS_DEBOUNCE_INTERVAL,
  98                 .gpio           = TEW_712BR_GPIO_BTN_RESET,
  99                 .active_low     = 1,
 100         }, {
 101                 .desc           = "WPS button",
 102                 .type           = EV_KEY,
 103                 .code           = KEY_WPS_BUTTON,
 104                 .debounce_interval = TEW_712BR_KEYS_DEBOUNCE_INTERVAL,
 105                 .gpio           = TEW_712BR_GPIO_BTN_WPS,
 106                 .active_low     = 1,
 107         }
 108 };
 109
 110 static void __init tew_712br_read_ascii_mac(u8 *dest, unsigned int src_addr)
 111 {
 112         int ret;
 113         u8 *src = (u8 *)KSEG1ADDR(src_addr);
 114
 115         ret = sscanf(src, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx",
 116                      &dest[0], &dest[1], &dest[2],
 117                      &dest[3], &dest[4], &dest[5]);
 118
 119         if (ret != ETH_ALEN)
 120                 memset(dest, 0, ETH_ALEN);
 121 }
 122
 123 static void __init tew_712br_setup(void)
 124 {
 125         u8 *art = (u8 *) KSEG1ADDR(TEW_712BR_ART_ADDRESS);
 126         u8 lan_mac[ETH_ALEN];
 127         u8 wan_mac[ETH_ALEN];
 128
 129         ath79_setup_ar933x_phy4_switch(false, false);
 130
 131         ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
 132                                     AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
 133                                     AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
 134                                     AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
 135                                     AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
 136
 137         gpio_request_one(TEW_712BR_GPIO_WAN_LED_ENABLE,
 138                          GPIOF_OUT_INIT_LOW, "WAN LED enable");
 139
 140         ath79_register_leds_gpio(-1, ARRAY_SIZE(tew_712br_leds_gpio),
 141                                  tew_712br_leds_gpio);
 142
 143         ath79_register_gpio_keys_polled(1, TEW_712BR_KEYS_POLL_INTERVAL,
 144                                         ARRAY_SIZE(tew_712br_gpio_keys),
 145                                         tew_712br_gpio_keys);
 146
 147         ath79_register_m25p80(NULL);
 148
 149         tew_712br_read_ascii_mac(lan_mac, TEW_712BR_LAN_MAC_ADDRESS);
 150         tew_712br_read_ascii_mac(wan_mac, TEW_712BR_WAN_MAC_ADDRESS);
 151
 152         ath79_init_mac(ath79_eth0_data.mac_addr, wan_mac, 0);
 153         ath79_init_mac(ath79_eth1_data.mac_addr, lan_mac, 0);
 154
 155         ath79_register_mdio(0, 0x0);
 156         ath79_register_eth(1);
 157         ath79_register_eth(0);
 158
 159         ath79_register_wmac(art + TEW_712BR_CALDATA_OFFSET, wan_mac);
 160 }
 161
 162 MIPS_MACHINE(ATH79_MACH_TEW_712BR, "TEW-712BR",
 163              "TRENDnet TEW-712BR", tew_712br_setup);