target/linux/ar71xx/files/arch/mips/ath79/mach-gl-ar750.c

   1 /*
   2  * GL.iNet GL-AR750 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/i2c.h>
  13 #include <linux/i2c-gpio.h>
  14 #include <linux/platform_device.h>
  15
  16 #include <asm/mach-ath79/ath79.h>
  17 #include <asm/mach-ath79/ar71xx_regs.h>
  18
  19 #include "common.h"
  20 #include "dev-ap9x-pci.h"
  21 #include "dev-eth.h"
  22 #include "dev-gpio-buttons.h"
  23 #include "dev-leds-gpio.h"
  24 #include "dev-m25p80.h"
  25 #include "dev-usb.h"
  26 #include "dev-wmac.h"
  27 #include "machtypes.h"
  28
  29 #define GL_AR750_GPIO_LED_POWER         12
  30 #define GL_AR750_GPIO_LED_WLAN2G        14
  31 #define GL_AR750_GPIO_LED_WLAN5G        13
  32
  33 #define GL_AR750_GPIO_BTN_RESET         3
  34 #define GL_AR750_GPIO_BTN_SW1           0
  35
  36 #define GL_AR750_GPIO_I2C_SCL           16
  37 #define GL_AR750_GPIO_I2C_SDA           17
  38
  39 #define GL_AR750_GPIO_USB_POWER         2
  40
  41 #define GL_AR750_KEYS_POLL_INTERVAL     20
  42 #define GL_AR750_KEYS_DEBOUNCE_INTERVAL (3 * GL_AR750_KEYS_POLL_INTERVAL)
  43
  44 #define GL_AR750_MAC0_OFFSET            0
  45 #define GL_AR750_WMAC2G_CALDATA_OFFSET  0x1000
  46 #define GL_AR750_WMAC5G_CALDATA_OFFSET  0x5000
  47
  48 static struct gpio_led gl_ar750_leds_gpio[] __initdata = {
  49         {
  50                 .name           = "gl-ar750:white:power",
  51                 .gpio           = GL_AR750_GPIO_LED_POWER,
  52                 .default_state  = LEDS_GPIO_DEFSTATE_KEEP,
  53                 .active_low     = 1,
  54         }, {
  55                 .name           = "gl-ar750:white:wlan2g",
  56                 .gpio           = GL_AR750_GPIO_LED_WLAN2G,
  57                 .active_low     = 1,
  58         }, {
  59                 .name           = "gl-ar750:white:wlan5g",
  60                 .gpio           = GL_AR750_GPIO_LED_WLAN5G,
  61                 .active_low     = 1,
  62         },
  63 };
  64
  65 static struct gpio_keys_button gl_ar750_gpio_keys[] __initdata = {
  66         {
  67                 .desc                   = "reset",
  68                 .type                   = EV_KEY,
  69                 .code                   = KEY_RESTART,
  70                 .debounce_interval      = GL_AR750_KEYS_DEBOUNCE_INTERVAL,
  71                 .gpio                   = GL_AR750_GPIO_BTN_RESET,
  72                 .active_low             = 1,
  73         }, {
  74                 .desc                   = "sw1",
  75                 .type                   = EV_KEY,
  76                 .code                   = BTN_0,
  77                 .debounce_interval      = GL_AR750_KEYS_DEBOUNCE_INTERVAL,
  78                 .gpio                   = GL_AR750_GPIO_BTN_SW1,
  79                 .active_low             = 1,
  80         },
  81 };
  82
  83 static struct i2c_gpio_platform_data gl_ar750_i2c_gpio_data = {
  84         .sda_pin = GL_AR750_GPIO_I2C_SDA,
  85         .scl_pin = GL_AR750_GPIO_I2C_SCL,
  86 };
  87
  88 static struct platform_device gl_ar750_i2c_gpio = {
  89         .name   = "i2c-gpio",
  90         .id     = 0,
  91         .dev    = {
  92                 .platform_data = &gl_ar750_i2c_gpio_data,
  93         },
  94 };
  95
  96 static void __init gl_ar750_setup(void)
  97 {
  98         u8 *art = (u8 *) KSEG1ADDR(0x1f050000);
  99
 100         ath79_register_m25p80(NULL);
 101
 102         ath79_setup_ar933x_phy4_switch(false, false);
 103         ath79_register_mdio(0, 0x0);
 104
 105         ath79_switch_data.phy4_mii_en = 1;
 106         ath79_switch_data.phy_poll_mask = 0xfc;
 107
 108         /* WAN */
 109         ath79_eth0_data.duplex = DUPLEX_FULL;
 110         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 111         ath79_eth0_data.phy_mask = BIT(4);
 112         ath79_eth0_data.speed = SPEED_100;
 113         ath79_init_mac(ath79_eth0_data.mac_addr, art + GL_AR750_MAC0_OFFSET, 0);
 114         ath79_register_eth(0);
 115
 116         /* LAN */
 117         ath79_eth1_data.duplex = DUPLEX_FULL;
 118         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 119         ath79_init_mac(ath79_eth1_data.mac_addr, art + GL_AR750_MAC0_OFFSET, 1);
 120         ath79_register_eth(1);
 121
 122         /* Disable JTAG (enables GPIO0-3) */
 123         ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
 124
 125         ath79_register_leds_gpio(-1, ARRAY_SIZE(gl_ar750_leds_gpio),
 126                                  gl_ar750_leds_gpio);
 127
 128         ath79_register_gpio_keys_polled(-1, GL_AR750_KEYS_POLL_INTERVAL,
 129                                         ARRAY_SIZE(gl_ar750_gpio_keys),
 130                                         gl_ar750_gpio_keys);
 131
 132         gpio_request_one(GL_AR750_GPIO_USB_POWER,
 133                          GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 134                          "USB power");
 135
 136         platform_device_register(&gl_ar750_i2c_gpio);
 137
 138         ath79_register_usb();
 139
 140         ath79_register_wmac(art + GL_AR750_WMAC2G_CALDATA_OFFSET, NULL);
 141
 142         ap91_pci_init(art + GL_AR750_WMAC5G_CALDATA_OFFSET, NULL);
 143 }
 144
 145 MIPS_MACHINE(ATH79_MACH_GL_AR750, "GL-AR750", "GL.iNet GL-AR750",
 146              gl_ar750_setup);
 147