target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n750.c

   1 /*
   2  *  WD My Net N750 board support
   3  *
   4  *  Copyright (C) 2013 Felix Kaechele <felix@fetzig.org>
   5  *  Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify it
   8  *  under the terms of the GNU General Public License version 2 as published
   9  *  by the Free Software Foundation.
  10  */
  11
  12 #include <linux/pci.h>
  13 #include <linux/phy.h>
  14 #include <linux/gpio.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/ath9k_platform.h>
  17 #include <linux/ar8216_platform.h>
  18
  19 #include <asm/mach-ath79/ar71xx_regs.h>
  20
  21 #include "common.h"
  22 #include "dev-ap9x-pci.h"
  23 #include "dev-eth.h"
  24 #include "dev-gpio-buttons.h"
  25 #include "dev-leds-gpio.h"
  26 #include "dev-m25p80.h"
  27 #include "dev-spi.h"
  28 #include "dev-usb.h"
  29 #include "dev-wmac.h"
  30 #include "machtypes.h"
  31 #include "nvram.h"
  32
  33
  34 /*
  35  * Taken from GPL bootloader source:
  36  *   board/ar7240/db12x/alpha_gpio.c
  37  */
  38 #define MYNET_N750_GPIO_LED_WIFI        11
  39 #define MYNET_N750_GPIO_LED_INTERNET    12
  40 #define MYNET_N750_GPIO_LED_WPS         13
  41 #define MYNET_N750_GPIO_LED_POWER       14
  42
  43 #define MYNET_N750_GPIO_BTN_RESET       17
  44 #define MYNET_N750_GPIO_BTN_WPS         19
  45
  46 #define MYNET_N750_GPIO_EXTERNAL_LNA0   15
  47 #define MYNET_N750_GPIO_EXTERNAL_LNA1   18
  48
  49 #define MYNET_N750_KEYS_POLL_INTERVAL   20      /* msecs */
  50 #define MYNET_N750_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_N750_KEYS_POLL_INTERVAL)
  51
  52 #define MYNET_N750_WMAC_CALDATA_OFFSET  0x1000
  53 #define MYNET_N750_PCIE_CALDATA_OFFSET  0x5000
  54
  55 #define MYNET_N750_NVRAM_ADDR           0x1f058010
  56 #define MYNET_N750_NVRAM_SIZE           0x7ff0
  57
  58 static struct gpio_led mynet_n750_leds_gpio[] __initdata = {
  59         {
  60                 .name           = "wd:blue:power",
  61                 .gpio           = MYNET_N750_GPIO_LED_POWER,
  62                 .active_low     = 0,
  63         },
  64         {
  65                 .name           = "wd:blue:wps",
  66                 .gpio           = MYNET_N750_GPIO_LED_WPS,
  67                 .active_low     = 0,
  68         },
  69         {
  70                 .name           = "wd:blue:wireless",
  71                 .gpio           = MYNET_N750_GPIO_LED_WIFI,
  72                 .active_low     = 0,
  73         },
  74         {
  75                 .name           = "wd:blue:internet",
  76                 .gpio           = MYNET_N750_GPIO_LED_INTERNET,
  77                 .active_low     = 0,
  78         },
  79 };
  80
  81 static struct gpio_keys_button mynet_n750_gpio_keys[] __initdata = {
  82         {
  83                 .desc           = "Reset button",
  84                 .type           = EV_KEY,
  85                 .code           = KEY_RESTART,
  86                 .debounce_interval = MYNET_N750_KEYS_DEBOUNCE_INTERVAL,
  87                 .gpio           = MYNET_N750_GPIO_BTN_RESET,
  88                 .active_low     = 1,
  89         },
  90         {
  91                 .desc           = "WPS button",
  92                 .type           = EV_KEY,
  93                 .code           = KEY_WPS_BUTTON,
  94                 .debounce_interval = MYNET_N750_KEYS_DEBOUNCE_INTERVAL,
  95                 .gpio           = MYNET_N750_GPIO_BTN_WPS,
  96                 .active_low     = 1,
  97         },
  98 };
  99
 100 static struct ar8327_pad_cfg mynet_n750_ar8327_pad0_cfg = {
 101         .mode = AR8327_PAD_MAC_RGMII,
 102         .txclk_delay_en = true,
 103         .rxclk_delay_en = true,
 104         .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
 105         .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
 106 };
 107
 108 static struct ar8327_led_cfg mynet_n750_ar8327_led_cfg = {
 109         .led_ctrl0 = 0xc737c737,
 110         .led_ctrl1 = 0x00000000,
 111         .led_ctrl2 = 0x00000000,
 112         .led_ctrl3 = 0x0030c300,
 113         .open_drain = false,
 114 };
 115
 116 static struct ar8327_platform_data mynet_n750_ar8327_data = {
 117         .pad0_cfg = &mynet_n750_ar8327_pad0_cfg,
 118         .port0_cfg = {
 119                 .force_link = 1,
 120                 .speed = AR8327_PORT_SPEED_1000,
 121                 .duplex = 1,
 122                 .txpause = 1,
 123                 .rxpause = 1,
 124         },
 125         .led_cfg = &mynet_n750_ar8327_led_cfg,
 126 };
 127
 128 static struct mdio_board_info mynet_n750_mdio0_info[] = {
 129         {
 130                 .bus_id = "ag71xx-mdio.0",
 131                 .phy_addr = 0,
 132                 .platform_data = &mynet_n750_ar8327_data,
 133         },
 134 };
 135
 136 static void mynet_n750_get_mac(const char *name, char *mac)
 137 {
 138         u8 *nvram = (u8 *) KSEG1ADDR(MYNET_N750_NVRAM_ADDR);
 139         int err;
 140
 141         err = ath79_nvram_parse_mac_addr(nvram, MYNET_N750_NVRAM_SIZE,
 142                                          name, mac);
 143         if (err)
 144                 pr_err("no MAC address found for %s\n", name);
 145 }
 146
 147 static void __init mynet_n750_setup(void)
 148 {
 149         u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
 150         u8 tmpmac[ETH_ALEN];
 151
 152         ath79_register_m25p80(NULL);
 153         ath79_register_leds_gpio(-1, ARRAY_SIZE(mynet_n750_leds_gpio),
 154                                  mynet_n750_leds_gpio);
 155         ath79_register_gpio_keys_polled(-1, MYNET_N750_KEYS_POLL_INTERVAL,
 156                                         ARRAY_SIZE(mynet_n750_gpio_keys),
 157                                         mynet_n750_gpio_keys);
 158         /*
 159          * Control signal for external LNAs 0 and 1
 160          * Taken from GPL bootloader source:
 161          *   board/ar7240/db12x/alpha_gpio.c
 162          */
 163         gpio_request_one(MYNET_N750_GPIO_EXTERNAL_LNA0,
 164                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
 165                          "External LNA0");
 166         gpio_request_one(MYNET_N750_GPIO_EXTERNAL_LNA1,
 167                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
 168                          "External LNA1");
 169
 170         mynet_n750_get_mac("wlan24mac=", tmpmac);
 171         ath79_register_wmac(art + MYNET_N750_WMAC_CALDATA_OFFSET, tmpmac);
 172
 173         mynet_n750_get_mac("wlan5mac=", tmpmac);
 174         ap91_pci_init(art + MYNET_N750_PCIE_CALDATA_OFFSET, tmpmac);
 175
 176         ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);
 177
 178         mdiobus_register_board_info(mynet_n750_mdio0_info,
 179                                     ARRAY_SIZE(mynet_n750_mdio0_info));
 180
 181         ath79_register_mdio(0, 0x0);
 182
 183         mynet_n750_get_mac("lanmac=", ath79_eth0_data.mac_addr);
 184
 185         /* GMAC0 is connected to an AR8327N switch */
 186         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
 187         ath79_eth0_data.phy_mask = BIT(0);
 188         ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
 189         ath79_eth0_pll_data.pll_1000 = 0x06000000;
 190         ath79_register_eth(0);
 191
 192         ath79_register_usb();
 193 }
 194
 195 MIPS_MACHINE(ATH79_MACH_MYNET_N750, "MYNET-N750", "WD My Net N750",
 196              mynet_n750_setup);