target/linux/ar71xx/files/arch/mips/ath79/mach-esr1750.c

   1 /*
   2  *  EnGenius ESR1750 board support
   3  *
   4  *  Copyright (c) 2014 Jon Suphammer <jon@suphammer.net>
   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/platform_device.h>
  12 #include <linux/ar8216_platform.h>
  13
  14 #include <asm/mach-ath79/ar71xx_regs.h>
  15
  16 #include "common.h"
  17 #include "pci.h"
  18 #include "dev-ap9x-pci.h"
  19 #include "dev-gpio-buttons.h"
  20 #include "dev-eth.h"
  21 #include "dev-leds-gpio.h"
  22 #include "dev-m25p80.h"
  23 #include "dev-usb.h"
  24 #include "dev-wmac.h"
  25 #include "machtypes.h"
  26 #include "nvram.h"
  27
  28 #define ESR1750_GPIO_LED_WLAN_5G        23
  29 #define ESR1750_GPIO_LED_WLAN_2G        13
  30 #define ESR1750_GPIO_LED_POWER_AMBER    2
  31 #define ESR1750_GPIO_LED_WPS_AMBER      22
  32 #define ESR1750_GPIO_LED_WPS_BLUE       19
  33
  34 #define ESR1750_GPIO_BTN_WPS            16
  35 #define ESR1750_GPIO_BTN_RESET          17
  36
  37 #define ESR1750_KEYS_POLL_INTERVAL      20      /* msecs */
  38 #define ESR1750_KEYS_DEBOUNCE_INTERVAL  (3 * ESR1750_KEYS_POLL_INTERVAL)
  39
  40 #define ESR1750_CALDATA_ADDR 0x1fff0000
  41 #define ESR1750_WMAC_CALDATA_OFFSET     0x1000
  42 #define ESR1750_PCIE_CALDATA_OFFSET     0x5000
  43
  44 #define ESR1750_NVRAM_ADDR      0x1f030000
  45 #define ESR1750_NVRAM_SIZE      0x10000
  46
  47 static struct gpio_led esr1750_leds_gpio[] __initdata = {
  48         {
  49                 .name           = "esr1750:amber:power",
  50                 .gpio           = ESR1750_GPIO_LED_POWER_AMBER,
  51                 .active_low     = 1,
  52         },
  53         {
  54                 .name           = "esr1750:blue:wps",
  55                 .gpio           = ESR1750_GPIO_LED_WPS_BLUE,
  56                 .active_low     = 1,
  57         },
  58         {
  59                 .name           = "esr1750:amber:wps",
  60                 .gpio           = ESR1750_GPIO_LED_WPS_AMBER,
  61                 .active_low     = 1,
  62         },
  63         {
  64                 .name           = "esr1750:blue:wlan-2g",
  65                 .gpio           = ESR1750_GPIO_LED_WLAN_2G,
  66                 .active_low     = 1,
  67         },
  68         {
  69                 .name           = "esr1750:blue:wlan-5g",
  70                 .gpio           = ESR1750_GPIO_LED_WLAN_5G,
  71                 .active_low     = 1,
  72         }
  73 };
  74
  75 static struct gpio_keys_button esr1750_gpio_keys[] __initdata = {
  76         {
  77                 .desc           = "WPS button",
  78                 .type           = EV_KEY,
  79                 .code           = KEY_WPS_BUTTON,
  80                 .debounce_interval = ESR1750_KEYS_DEBOUNCE_INTERVAL,
  81                 .gpio           = ESR1750_GPIO_BTN_WPS,
  82                 .active_low     = 1,
  83         },
  84         {
  85                 .desc           = "Reset button",
  86                 .type           = EV_KEY,
  87                 .code           = KEY_RESTART,
  88                 .debounce_interval = ESR1750_KEYS_DEBOUNCE_INTERVAL,
  89                 .gpio           = ESR1750_GPIO_BTN_RESET,
  90                 .active_low     = 1,
  91         },
  92 };
  93
  94 static struct ar8327_pad_cfg esr1750_ar8327_pad0_cfg = {
  95         .mode = AR8327_PAD_MAC_RGMII,
  96         .txclk_delay_en = true,
  97         .rxclk_delay_en = true,
  98         .txclk_delay_sel = AR8327_CLK_DELAY_SEL2,
  99         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 100 };
 101
 102 static struct ar8327_platform_data esr1750_ar8327_data = {
 103         .pad0_cfg = &esr1750_ar8327_pad0_cfg,
 104         .port0_cfg = {
 105                 .force_link = 1,
 106                 .speed = AR8327_PORT_SPEED_1000,
 107                 .duplex = 1,
 108                 .txpause = 1,
 109                 .rxpause = 1,
 110         },
 111 };
 112
 113 static struct mdio_board_info esr1750_mdio0_info[] = {
 114         {
 115                 .bus_id = "ag71xx-mdio.0",
 116                 .phy_addr = 0,
 117                 .platform_data = &esr1750_ar8327_data,
 118         },
 119 };
 120
 121 static int esr1750_get_mac(const char *name, char *mac)
 122 {
 123         u8 *nvram = (u8 *) KSEG1ADDR(ESR1750_NVRAM_ADDR);
 124         int err;
 125
 126         err = ath79_nvram_parse_mac_addr(nvram, ESR1750_NVRAM_SIZE,
 127                                          name, mac);
 128         if (err) {
 129                 pr_err("no MAC address found for %s\n", name);
 130                 return false;
 131         }
 132
 133         return true;
 134 }
 135
 136 static void __init esr1750_setup(void)
 137 {
 138         u8 *caldata = (u8 *) KSEG1ADDR(ESR1750_CALDATA_ADDR);
 139         u8 mac1[ETH_ALEN];
 140
 141         ath79_register_m25p80(NULL);
 142
 143         ath79_register_leds_gpio(-1, ARRAY_SIZE(esr1750_leds_gpio),
 144                                         esr1750_leds_gpio);
 145         ath79_register_gpio_keys_polled(-1, ESR1750_KEYS_POLL_INTERVAL,
 146                                         ARRAY_SIZE(esr1750_gpio_keys),
 147                                         esr1750_gpio_keys);
 148
 149         ath79_register_usb();
 150
 151         ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);
 152
 153         ath79_register_mdio(0, 0x0);
 154
 155         mdiobus_register_board_info(esr1750_mdio0_info,
 156                                         ARRAY_SIZE(esr1750_mdio0_info));
 157
 158         /* GMAC0 is connected to an QCA8327N switch */
 159         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 160         ath79_eth0_data.phy_mask = BIT(0);
 161         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 162
 163         if (esr1750_get_mac("ethaddr=", mac1))
 164                 ath79_init_mac(ath79_eth0_data.mac_addr, mac1, 0);
 165
 166         ath79_eth0_pll_data.pll_1000 = 0xa6000000;
 167         ath79_register_eth(0);
 168
 169         ath79_register_wmac(caldata + ESR1750_WMAC_CALDATA_OFFSET, mac1);
 170
 171         ath79_register_pci();
 172 }
 173
 174 MIPS_MACHINE(ATH79_MACH_ESR1750, "ESR1750",
 175              "EnGenius ESR1750",
 176              esr1750_setup);