target/linux/ar71xx/files/arch/mips/ath79/mach-eap120.c

   1 /*
   2  *  TP-LINK EAP120 board support
   3  *
   4  * Copyright (C) 2016 Henryk Heisig <hyniu@o2.pl>
   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 #include <linux/platform_data/mdio-gpio.h>
  14 #include <asm/mach-ath79/ath79.h>
  15 #include <asm/mach-ath79/ar71xx_regs.h>
  16 #include <linux/platform_data/phy-at803x.h>
  17
  18 #include "common.h"
  19 #include "dev-eth.h"
  20 #include "dev-gpio-buttons.h"
  21 #include "dev-leds-gpio.h"
  22 #include "dev-m25p80.h"
  23 #include "dev-wmac.h"
  24 #include "machtypes.h"
  25
  26
  27 #define EAP120_GPIO_LED_RED     12
  28 #define EAP120_GPIO_LED_YEL     13
  29 #define EAP120_GPIO_LED_GRN     15
  30 #define EAP120_GPIO_BTN_RESET   4
  31
  32 #define EAP120_KEYS_POLL_INTERVAL       20 /* msecs */
  33 #define EAP120_KEYS_DEBOUNCE_INTERVAL   (3 * EAP120_KEYS_POLL_INTERVAL)
  34
  35 #define EAP120_GPIO_SMI_MDIO            16
  36 #define EAP120_GPIO_SMI_MDC             17
  37
  38 #define EAP120_LAN_PHYADDR              4
  39
  40 static struct gpio_led eap120_leds_gpio[] __initdata = {
  41         {
  42                 .name           = "eap120:red:system",
  43                 .gpio           = EAP120_GPIO_LED_RED,
  44                 .active_low     = 1,
  45         }, {
  46                 .name           = "eap120:yellow:system",
  47                 .gpio           = EAP120_GPIO_LED_YEL,
  48                 .active_low     = 1,
  49         }, {
  50                 .name           = "eap120:green:system",
  51                 .gpio           = EAP120_GPIO_LED_GRN,
  52                 .active_low     = 1,
  53         },
  54 };
  55
  56 static struct gpio_keys_button eap120_gpio_keys[] __initdata = {
  57         {
  58                 .desc           = "Reset button",
  59                 .type           = EV_KEY,
  60                 .code           = KEY_RESTART,
  61                 .debounce_interval = EAP120_KEYS_DEBOUNCE_INTERVAL,
  62                 .gpio           = EAP120_GPIO_BTN_RESET,
  63                 .active_low     = 1,
  64         }
  65 };
  66
  67 static struct mdio_gpio_platform_data eap120_mdio = {
  68         .mdc            = EAP120_GPIO_SMI_MDC,
  69         .mdio           = EAP120_GPIO_SMI_MDIO,
  70         .phy_mask       = ~BIT(EAP120_LAN_PHYADDR),
  71 };
  72
  73 static struct at803x_platform_data eap120_ar8035_data = {
  74         .disable_smarteee = 0,
  75         .enable_rgmii_rx_delay = 1,
  76         .enable_rgmii_tx_delay = 0,
  77         .fixup_rgmii_tx_delay = 1,
  78 };
  79
  80 static struct platform_device eap120_phy_device = {
  81         .name   = "mdio-gpio",
  82         .id     = 0,
  83         .dev    = {
  84                 .platform_data = &eap120_mdio, &eap120_ar8035_data
  85         },
  86 };
  87
  88 static void __init eap_setup(u8 *mac)
  89 {
  90         ath79_register_leds_gpio(-1, ARRAY_SIZE(eap120_leds_gpio),
  91                                  eap120_leds_gpio);
  92
  93         ath79_register_gpio_keys_polled(1, EAP120_KEYS_POLL_INTERVAL,
  94                                         ARRAY_SIZE(eap120_gpio_keys),
  95                                         eap120_gpio_keys);
  96
  97         ath79_register_m25p80(NULL);
  98
  99         /* MDIO Interface */
 100         platform_device_register(&eap120_phy_device);
 101         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
 102
 103         /* GMAC0 is connected to the RGMII interface to an Atheros AR8035-A */
 104         ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
 105         ath79_eth0_data.mii_bus_dev = &eap120_phy_device.dev;
 106         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 107         ath79_eth0_data.phy_mask = BIT(EAP120_LAN_PHYADDR);
 108         ath79_eth0_pll_data.pll_1000 = 0x0e000000;
 109         ath79_eth0_pll_data.pll_100 = 0x00000101;
 110         ath79_eth0_pll_data.pll_10 = 0x00001313;
 111         ath79_register_eth(0);
 112 }
 113
 114 static void __init eap120_setup(void)
 115 {
 116         u8 *mac = (u8 *) KSEG1ADDR(0x1f030008);
 117         u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
 118
 119         eap_setup(mac);
 120
 121         ath79_register_wmac(ee, mac);
 122 }
 123
 124 MIPS_MACHINE(ATH79_MACH_EAP120, "EAP120", "TP-LINK EAP120",
 125                 eap120_setup);
 126