target/linux/ar71xx/files/arch/mips/ath79/mach-r36a.c

   1 /*
   2  * ALFA Network R36A board support
   3  *
   4  * Copyright (C) 2018 Piotr Dymacz <pepe2k@gmail.com>
   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 #include <linux/platform_device.h>
  13
  14 #include <asm/mach-ath79/ath79.h>
  15 #include <asm/mach-ath79/ar71xx_regs.h>
  16
  17 #include "common.h"
  18 #include "dev-eth.h"
  19 #include "dev-gpio-buttons.h"
  20 #include "dev-leds-gpio.h"
  21 #include "dev-m25p80.h"
  22 #include "dev-usb.h"
  23 #include "dev-wmac.h"
  24 #include "machtypes.h"
  25
  26 #define R36A_GPIO_LED_LAN       4
  27 #define R36A_GPIO_LED_STATUS    14
  28 #define R36A_GPIO_LED_USB       12
  29 #define R36A_GPIO_LED_WAN       16
  30 #define R36A_GPIO_LED_WLAN      15
  31
  32 #define R36A_GPIO_WDT_EN        1
  33 #define R36A_GPIO_WDT_IN        0
  34 #define R36A_GPIO_USB_PWR       3
  35
  36 #define R36A_GPIO_BTN_RESET     2
  37 #define R36A_GPIO_BTN_RFKILL    17
  38
  39 #define R36A_KEYS_POLL_INTERVAL         20
  40 #define R36A_KEYS_DEBOUNCE_INTERVAL     (3 * R36A_KEYS_POLL_INTERVAL)
  41
  42 #define R36A_WMAC_CALDATA_OFFSET        0x1000
  43
  44 static struct gpio_led r36a_leds_gpio[] __initdata = {
  45         {
  46                 .name           = "r36a:blue:lan",
  47                 .gpio           = R36A_GPIO_LED_LAN,
  48                 .active_low     = 1,
  49         }, {
  50                 .name           = "r36a:blue:status",
  51                 .gpio           = R36A_GPIO_LED_STATUS,
  52                 .active_low     = 1,
  53         }, {
  54                 .name           = "r36a:blue:usb",
  55                 .gpio           = R36A_GPIO_LED_USB,
  56                 .active_low     = 1,
  57         }, {
  58                 .name           = "r36a:blue:wan",
  59                 .gpio           = R36A_GPIO_LED_WAN,
  60                 .active_low     = 1,
  61         }, {
  62                 .name           = "r36a:blue:wlan",
  63                 .gpio           = R36A_GPIO_LED_WLAN,
  64                 .active_low     = 1,
  65         },
  66 };
  67
  68 static struct gpio_keys_button r36a_gpio_keys[] __initdata = {
  69         {
  70                 .desc                   = "reset",
  71                 .type                   = EV_KEY,
  72                 .code                   = KEY_RESTART,
  73                 .debounce_interval      = R36A_KEYS_DEBOUNCE_INTERVAL,
  74                 .gpio                   = R36A_GPIO_BTN_RESET,
  75                 .active_low             = 1,
  76         }, {
  77                 .desc                   = "rfkill",
  78                 .type                   = EV_KEY,
  79                 .code                   = KEY_RFKILL,
  80                 .debounce_interval      = R36A_KEYS_DEBOUNCE_INTERVAL,
  81                 .gpio                   = R36A_GPIO_BTN_RFKILL,
  82                 .active_low             = 1,
  83         },
  84 };
  85
  86 static void __init r36a_setup(void)
  87 {
  88         u8 *art = (u8 *) KSEG1ADDR(0x1f070000);
  89
  90         ath79_register_m25p80(NULL);
  91
  92         ath79_setup_ar933x_phy4_switch(false, false);
  93
  94         ath79_register_mdio(0, 0x0);
  95
  96         ath79_switch_data.phy4_mii_en = 1;
  97         ath79_switch_data.phy_poll_mask = 0xf7;
  98
  99         /* LAN */
 100         ath79_eth0_data.duplex = DUPLEX_FULL;
 101         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 102         ath79_eth0_data.phy_mask = BIT(4);
 103         ath79_eth0_data.speed = SPEED_100;
 104         ath79_init_mac(ath79_eth0_data.mac_addr, art, 0);
 105         ath79_register_eth(0);
 106
 107         /* WAN */
 108         ath79_eth1_data.duplex = DUPLEX_FULL;
 109         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 110         ath79_init_mac(ath79_eth1_data.mac_addr, art, 1);
 111         ath79_register_eth(1);
 112
 113         /* Disable JTAG (enables GPIO0-3) */
 114         ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
 115
 116         ath79_register_leds_gpio(-1, ARRAY_SIZE(r36a_leds_gpio),
 117                                  r36a_leds_gpio);
 118
 119         ath79_register_gpio_keys_polled(-1, R36A_KEYS_POLL_INTERVAL,
 120                                         ARRAY_SIZE(r36a_gpio_keys),
 121                                         r36a_gpio_keys);
 122
 123         gpio_request_one(R36A_GPIO_WDT_IN,
 124                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
 125                          "WDT input");
 126
 127         gpio_request_one(R36A_GPIO_WDT_EN,
 128                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
 129                          "WDT enable");
 130
 131         gpio_request_one(R36A_GPIO_USB_PWR,
 132                          GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 133                          "USB power");
 134
 135         ath79_register_wmac(art + R36A_WMAC_CALDATA_OFFSET, NULL);
 136
 137         ath79_register_usb();
 138 }
 139
 140 MIPS_MACHINE(ATH79_MACH_R36A, "R36A", "ALFA Network R36A", r36a_setup);