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

   1 /*
   2  *  devolo dLAN Hotspot board support
   3  *
   4  *  Copyright (C) 2015 Torsten Schnuis <torsten.schnuis@gik.de>
   5  *  Copyright (C) 2015 devolo AG
   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/gpio.h>
  13
  14 #include <asm/mach-ath79/ath79.h>
  15
  16 #include "dev-eth.h"
  17 #include "dev-gpio-buttons.h"
  18 #include "dev-leds-gpio.h"
  19 #include "dev-m25p80.h"
  20 #include "dev-usb.h"
  21 #include "dev-wmac.h"
  22 #include "machtypes.h"
  23
  24 #define DLAN_HOTSPOT_GPIO_LED_WIFI                0
  25
  26 #define DLAN_HOTSPOT_GPIO_BTN_RESET              11
  27 #define DLAN_HOTSPOT_GPIO_BTN_PLC_PAIRING        12
  28 #define DLAN_HOTSPOT_GPIO_BTN_WIFI               21
  29
  30 #define DLAN_HOTSPOT_GPIO_PLC_POWER              22
  31 #define DLAN_HOTSPOT_GPIO_PLC_RESET              20
  32 #define DLAN_HOTSPOT_GPIO_PLC_DISABLE_LEDS       18
  33
  34 #define DLAN_HOTSPOT_KEYS_POLL_INTERVAL          20    /* msecs */
  35 #define DLAN_HOTSPOT_KEYS_DEBOUNCE_INTERVAL      (3 * DLAN_HOTSPOT_KEYS_POLL_INTERVAL)
  36
  37 #define DLAN_HOTSPOT_ART_ADDRESS                 0x1fff0000
  38 #define DLAN_HOTSPOT_CALDATA_OFFSET              0x00001000
  39 #define DLAN_HOTSPOT_MAC_ADDRESS_OFFSET          0x00001002
  40
  41 static struct gpio_led dlan_hotspot_leds_gpio[] __initdata = {
  42         {
  43                 .name           = "devolo:green:wifi",
  44                 .gpio           = DLAN_HOTSPOT_GPIO_LED_WIFI,
  45                 .active_low     = 0,
  46         }
  47 };
  48
  49 static struct gpio_keys_button dlan_hotspot_gpio_keys[] __initdata = {
  50         {
  51                 .desc           = "Reset button",
  52                 .type           = EV_KEY,
  53                 .code           = KEY_RESTART,
  54                 .debounce_interval = DLAN_HOTSPOT_KEYS_DEBOUNCE_INTERVAL,
  55                 .gpio           = DLAN_HOTSPOT_GPIO_BTN_RESET,
  56                 .active_low     = 0,
  57         },
  58         {
  59                 .desc           = "Pairing button",
  60                 .type           = EV_KEY,
  61                 .code           = BTN_0,
  62                 .debounce_interval = DLAN_HOTSPOT_KEYS_DEBOUNCE_INTERVAL,
  63                 .gpio           = DLAN_HOTSPOT_GPIO_BTN_PLC_PAIRING,
  64                 .active_low     = 0,
  65         },
  66         {
  67                 .desc           = "WLAN button",
  68                 .type           = EV_KEY,
  69                 .code           = KEY_WPS_BUTTON,
  70                 .debounce_interval = DLAN_HOTSPOT_KEYS_DEBOUNCE_INTERVAL,
  71                 .gpio           = DLAN_HOTSPOT_GPIO_BTN_WIFI,
  72                 .active_low     = 0,
  73         }
  74 };
  75
  76 static void __init dlan_hotspot_setup(void)
  77 {
  78         u8 *art = (u8 *) KSEG1ADDR(DLAN_HOTSPOT_ART_ADDRESS);
  79         u8 *cal = art + DLAN_HOTSPOT_CALDATA_OFFSET;
  80         u8 *wifi_mac = art + DLAN_HOTSPOT_MAC_ADDRESS_OFFSET;
  81
  82         /* disable PHY_SWAP and PHY_ADDR_SWAP bits */
  83         ath79_setup_ar933x_phy4_switch(false, false);
  84
  85         ath79_register_leds_gpio(-1, ARRAY_SIZE(dlan_hotspot_leds_gpio),
  86                                  dlan_hotspot_leds_gpio);
  87
  88         ath79_register_gpio_keys_polled(-1, DLAN_HOTSPOT_KEYS_POLL_INTERVAL,
  89                                         ARRAY_SIZE(dlan_hotspot_gpio_keys),
  90                                         dlan_hotspot_gpio_keys);
  91
  92         gpio_request_one(DLAN_HOTSPOT_GPIO_PLC_POWER,
  93                          GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
  94                          "PLC power");
  95         gpio_request_one(DLAN_HOTSPOT_GPIO_PLC_RESET,
  96                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
  97                          "PLC reset");
  98         gpio_request_one(DLAN_HOTSPOT_GPIO_PLC_DISABLE_LEDS,
  99                          GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
 100                          "PLC LEDs");
 101
 102         ath79_register_usb();
 103
 104         ath79_register_m25p80(NULL);
 105
 106         ath79_init_mac(ath79_eth0_data.mac_addr, wifi_mac, 1);
 107         ath79_init_mac(ath79_eth1_data.mac_addr, wifi_mac, 2);
 108
 109         ath79_register_mdio(0, 0x0);
 110         ath79_register_eth(0);
 111         ath79_register_eth(1);
 112
 113         ath79_register_wmac(cal, wifi_mac);
 114 }
 115
 116 MIPS_MACHINE(ATH79_MACH_DLAN_HOTSPOT, "dLAN-Hotspot",
 117              "dLAN Hotspot", dlan_hotspot_setup);