target/linux/ar71xx/files/arch/mips/ath79/mach-rut9xx.c

   1 /*
   2  * Teltonika RUT900 series boards 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-algo-bit.h>
  14 #include <linux/i2c-gpio.h>
  15 #include <linux/platform_data/pca953x.h>
  16 #include <linux/platform_device.h>
  17
  18 #include <asm/mach-ath79/ath79.h>
  19 #include <asm/mach-ath79/ar71xx_regs.h>
  20
  21 #include "common.h"
  22 #include "dev-eth.h"
  23 #include "dev-gpio-buttons.h"
  24 #include "dev-leds-gpio.h"
  25 #include "dev-m25p80.h"
  26 #include "dev-usb.h"
  27 #include "dev-wmac.h"
  28 #include "machtypes.h"
  29
  30 #define RUT9XX_GPIO_LED_LAN1            14
  31 #define RUT9XX_GPIO_LED_LAN2            13
  32 #define RUT9XX_GPIO_LED_LAN3            22
  33 #define RUT9XX_GPIO_LED_WAN             1
  34
  35 #define RUT9XX_PCA9539_GPIO_BASE        32
  36 #define RUT9XX_PCA9539_GPIO_SIGNAL1     (0 + RUT9XX_PCA9539_GPIO_BASE)
  37 #define RUT9XX_PCA9539_GPIO_SIGNAL2     (1 + RUT9XX_PCA9539_GPIO_BASE)
  38 #define RUT9XX_PCA9539_GPIO_SIGNAL3     (2 + RUT9XX_PCA9539_GPIO_BASE)
  39 #define RUT9XX_PCA9539_GPIO_SIGNAL4     (3 + RUT9XX_PCA9539_GPIO_BASE)
  40 #define RUT9XX_PCA9539_GPIO_SIGNAL5     (4 + RUT9XX_PCA9539_GPIO_BASE)
  41 #define RUT9XX_PCA9539_GPIO_STATUS_R    (5 + RUT9XX_PCA9539_GPIO_BASE)
  42 #define RUT9XX_PCA9539_GPIO_STATUS_G    (6 + RUT9XX_PCA9539_GPIO_BASE)
  43
  44 #define RUT9XX_GPIO_BTN_RESET           15
  45
  46 #define RUT9XX_GPIO_I2C_SCK             16
  47 #define RUT9XX_GPIO_I2C_SDA             17
  48
  49 #define RUT9XX_GPIO_EXT_LNA0            2
  50
  51 #define RUT9XX_WMAC_CALDATA_OFFSET      0x1000
  52
  53 #define RUT9XX_KEYS_POLL_INTERVAL       20
  54 #define RUT9XX_KEYS_DEBOUNCE_INTERVAL   (3 * RUT9XX_KEYS_POLL_INTERVAL)
  55
  56 static struct gpio_led rut900_leds_gpio[] __initdata = {
  57         {
  58                 .name           = "rut900:green:lan1",
  59                 .gpio           = RUT9XX_GPIO_LED_LAN1,
  60                 .active_low     = 1,
  61         }, {
  62                 .name           = "rut900:green:lan2",
  63                 .gpio           = RUT9XX_GPIO_LED_LAN2,
  64                 .active_low     = 1,
  65         }, {
  66                 .name           = "rut900:green:lan3",
  67                 .gpio           = RUT9XX_GPIO_LED_LAN3,
  68                 .active_low     = 1,
  69         }, {
  70                 .name           = "rut900:green:signal1",
  71                 .gpio           = RUT9XX_PCA9539_GPIO_SIGNAL1,
  72                 .active_low     = 0,
  73         }, {
  74                 .name           = "rut900:green:signal2",
  75                 .gpio           = RUT9XX_PCA9539_GPIO_SIGNAL2,
  76                 .active_low     = 0,
  77         }, {
  78                 .name           = "rut900:green:signal3",
  79                 .gpio           = RUT9XX_PCA9539_GPIO_SIGNAL3,
  80                 .active_low     = 0,
  81         }, {
  82                 .name           = "rut900:green:signal4",
  83                 .gpio           = RUT9XX_PCA9539_GPIO_SIGNAL4,
  84                 .active_low     = 0,
  85         }, {
  86                 .name           = "rut900:green:signal5",
  87                 .gpio           = RUT9XX_PCA9539_GPIO_SIGNAL5,
  88                 .active_low     = 0,
  89         }, {
  90                 .name           = "rut900:green:status",
  91                 .gpio           = RUT9XX_PCA9539_GPIO_STATUS_G,
  92                 .active_low     = 0,
  93         }, {
  94                 .name           = "rut900:green:wan",
  95                 .gpio           = RUT9XX_GPIO_LED_WAN,
  96                 .active_low     = 1,
  97         }, {
  98                 .name           = "rut900:red:status",
  99                 .gpio           = RUT9XX_PCA9539_GPIO_STATUS_R,
 100                 .active_low     = 0,
 101         },
 102 };
 103
 104 static struct gpio_keys_button rut900_gpio_keys[] __initdata = {
 105         {
 106                 .desc                   = "reset",
 107                 .type                   = EV_KEY,
 108                 .code                   = KEY_RESTART,
 109                 .debounce_interval      = RUT9XX_KEYS_DEBOUNCE_INTERVAL,
 110                 .gpio                   = RUT9XX_GPIO_BTN_RESET,
 111                 .active_low             = 1,
 112         },
 113 };
 114
 115 static struct i2c_gpio_platform_data rut900_i2c_gpio_data = {
 116         .sda_pin        = RUT9XX_GPIO_I2C_SDA,
 117         .scl_pin        = RUT9XX_GPIO_I2C_SCK,
 118         .udelay         = 10,
 119 };
 120
 121 static struct platform_device rut900_i2c_device = {
 122         .name   = "i2c-gpio",
 123         .id     = 0,
 124         .dev    = {
 125                 .platform_data = &rut900_i2c_gpio_data,
 126         },
 127 };
 128
 129 static struct pca953x_platform_data rut9xx_pca9539_data = {
 130         .gpio_base      = RUT9XX_PCA9539_GPIO_BASE,
 131         .irq_base       = -1,
 132 };
 133
 134 static struct i2c_board_info rut900_i2c_devs[] __initdata = {
 135         {
 136                 I2C_BOARD_INFO("pca9539", 0x74),
 137                 .platform_data = &rut9xx_pca9539_data,
 138         },
 139 };
 140
 141 static void __init rut900_setup(void)
 142 {
 143         u8 *art = (u8 *) KSEG1ADDR(0x1f030000);
 144         u8 *mac = (u8 *) KSEG1ADDR(0x1f020000);
 145         u8  wlan_mac[ETH_ALEN];
 146
 147         ath79_register_m25p80(NULL);
 148
 149         ath79_register_mdio(1, 0x0);
 150
 151         ath79_switch_data.phy4_mii_en = 1;
 152         ath79_switch_data.phy_poll_mask = 0xf1;
 153
 154         /* LAN */
 155         ath79_eth1_data.duplex = DUPLEX_FULL;
 156         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 157         ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
 158         ath79_register_eth(1);
 159
 160         /* WAN */
 161         ath79_eth0_data.duplex = DUPLEX_FULL;
 162         ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
 163         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 164         ath79_eth0_data.phy_mask = BIT(4);
 165         ath79_eth0_data.speed = SPEED_100;
 166         ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
 167         ath79_register_eth(0);
 168
 169         platform_device_register(&rut900_i2c_device);
 170         i2c_register_board_info(0, rut900_i2c_devs,
 171                                 ARRAY_SIZE(rut900_i2c_devs));
 172
 173         /* Disable JTAG (enables GPIO0-3) */
 174         ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
 175
 176         ath79_register_leds_gpio(-1, ARRAY_SIZE(rut900_leds_gpio),
 177                                  rut900_leds_gpio);
 178
 179         ath79_register_gpio_keys_polled(-1, RUT9XX_KEYS_POLL_INTERVAL,
 180                                         ARRAY_SIZE(rut900_gpio_keys),
 181                                         rut900_gpio_keys);
 182
 183         ath79_wmac_set_ext_lna_gpio(0, RUT9XX_GPIO_EXT_LNA0);
 184
 185         ath79_init_mac(wlan_mac, mac, 2);
 186         ath79_register_wmac(art + RUT9XX_WMAC_CALDATA_OFFSET, wlan_mac);
 187
 188         ath79_register_usb();
 189 }
 190
 191 MIPS_MACHINE(ATH79_MACH_RUT9XX, "RUT900", "Teltonika RUT900", rut900_setup);