target/linux/ar71xx/files/arch/mips/ath79/mach-fritz4020.c

   1 /*
   2  *  AVM FRITZ!Box 4020 board support
   3  *
   4  *  Copyright (C) 2018 David Bauer <mail@david-bauer.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/init.h>
  12 #include <linux/ath9k_platform.h>
  13 #include <linux/etherdevice.h>
  14 #include <linux/gpio.h>
  15 #include <linux/platform_device.h>
  16
  17 #include <linux/mtd/mtd.h>
  18 #include <linux/mtd/partitions.h>
  19 #include <linux/platform_data/mdio-gpio.h>
  20 #include <linux/spi/spi_gpio.h>
  21 #include <linux/spi/74x164.h>
  22
  23 #include <asm/mach-ath79/ath79.h>
  24 #include <asm/mach-ath79/ar71xx_regs.h>
  25
  26 #include "common.h"
  27 #include "dev-eth.h"
  28 #include "dev-gpio-buttons.h"
  29 #include "dev-leds-gpio.h"
  30 #include "dev-m25p80.h"
  31 #include "dev-spi.h"
  32 #include "dev-usb.h"
  33 #include "dev-wmac.h"
  34 #include "machtypes.h"
  35
  36
  37 #define FRITZ4020_GPIO_SHIFT_SER                        19   /* DS,   Data Serial Input */
  38 #define FRITZ4020_GPIO_SHIFT_SRCLK                      20 /* SHCP, Shift Reg Clock Input */
  39
  40 #define FRITZ4020_SSR_BIT_0                             0
  41 #define FRITZ4020_SSR_BIT_1                             1
  42 #define FRITZ4020_SSR_BIT_2                             2
  43 #define FRITZ4020_SSR_BIT_3                             3
  44 #define FRITZ4020_SSR_BIT_4                             4
  45 #define FRITZ4020_SSR_BIT_5                             5
  46 #define FRITZ4020_SSR_BIT_6                             6
  47 #define FRITZ4020_SSR_BIT_7                             7
  48
  49 #define FRITZ4020_74HC_GPIO_BASE                        32
  50 #define FRITZ4020_74HC_GPIO_LED_LAN                     (FRITZ4020_74HC_GPIO_BASE + 0)
  51 #define FRITZ4020_74HC_GPIO_LED_INFO_RED                (FRITZ4020_74HC_GPIO_BASE + 1)
  52 #define FRITZ4020_74HC_GPIO_LED_POWER                   (FRITZ4020_74HC_GPIO_BASE + 2)
  53 #define FRITZ4020_74HC_GPIO_LED_WLAN                    (FRITZ4020_74HC_GPIO_BASE + 3)
  54 #define FRITZ4020_74HC_GPIO_LED_WAN                     (FRITZ4020_74HC_GPIO_BASE + 4)
  55 #define FRITZ4020_74HC_GPIO_USB_RST                     (FRITZ4020_74HC_GPIO_BASE + 5)
  56 #define FRITZ4020_74HC_GPIO_LED_INFO                    (FRITZ4020_74HC_GPIO_BASE + 6)
  57
  58
  59 #define FRITZ4020_GPIO_BTN_WPS                          2
  60 #define FRITZ4020_GPIO_BTN_WLAN                         21
  61 #define FRITZ4020_KEYS_POLL_INTERVAL                    20 /* msecs */
  62 #define FRITZ4020_KEYS_DEBOUNCE_INTERVAL                (3 * FRITZ4020_KEYS_POLL_INTERVAL)
  63
  64 #define FRTIZ4020_OFFSET_URLADER_WIFI_MAC_REVERSE       0x1979
  65
  66
  67 static struct spi_gpio_platform_data fritz4020_spi_data = {
  68         .sck            = FRITZ4020_GPIO_SHIFT_SRCLK,
  69         .miso           = SPI_GPIO_NO_MISO,
  70         .mosi           = FRITZ4020_GPIO_SHIFT_SER,
  71         .num_chipselect = 1,
  72 };
  73
  74 static u8 fritz4020_ssr_initdata[] = {
  75         BIT(FRITZ4020_SSR_BIT_7) |
  76         BIT(FRITZ4020_SSR_BIT_6) |
  77         BIT(FRITZ4020_SSR_BIT_5) |
  78         BIT(FRITZ4020_SSR_BIT_4) |
  79         BIT(FRITZ4020_SSR_BIT_3) |
  80         BIT(FRITZ4020_SSR_BIT_2) |
  81         BIT(FRITZ4020_SSR_BIT_1)
  82 };
  83
  84 static struct gen_74x164_chip_platform_data fritz4020_ssr_data = {
  85         .base = FRITZ4020_74HC_GPIO_BASE,
  86         .num_registers = ARRAY_SIZE(fritz4020_ssr_initdata),
  87         .init_data = fritz4020_ssr_initdata,
  88 };
  89
  90 static struct platform_device fritz4020_spi_device = {
  91         .name           = "spi_gpio",
  92         .id             = 1,
  93         .dev = {
  94                 .platform_data = &fritz4020_spi_data,
  95         },
  96 };
  97
  98 static struct spi_board_info fritz4020_spi_info[] = {
  99         {
 100                 .bus_num                = 1,
 101                 .chip_select            = 0,
 102                 .max_speed_hz           = 10000000,
 103                 .modalias               = "74x164",
 104                 .platform_data          = &fritz4020_ssr_data,
 105                 .controller_data        = (void *) 0x0,
 106         },
 107 };
 108
 109 static struct mtd_partition fritz4020_flash_partitions[] = {
 110         {
 111                 .name           = "urlader",
 112                 .offset         = 0,
 113                 .size           = 0x0020000,
 114                 .mask_flags     = MTD_WRITEABLE,
 115         }, {
 116                 .name           = "firmware",
 117                 .offset         = 0x0020000,
 118                 .size           = 0x0EE0000,
 119         }, {
 120                 .name           = "tffs (1)",
 121                 .offset         = 0x0f00000,
 122                 .size           = 0x0080000,
 123                 .mask_flags     = MTD_WRITEABLE,
 124         }, {
 125                 .name           = "tffs (2)",
 126                 .offset         = 0x0f80000,
 127                 .size           = 0x0080000,
 128                 .mask_flags     = MTD_WRITEABLE,
 129         }
 130 };
 131
 132 static struct flash_platform_data fritz4020_flash_data = {
 133         .parts          = fritz4020_flash_partitions,
 134         .nr_parts       = ARRAY_SIZE(fritz4020_flash_partitions),
 135 };
 136
 137 static struct gpio_led fritz4020_leds_gpio[] __initdata = {
 138         {
 139                 .name           = "fritz4020:green:lan",
 140                 .gpio           = FRITZ4020_74HC_GPIO_LED_LAN,
 141                 .active_low     = 1,
 142         }, {
 143                 .name           = "fritz4020:green:info",
 144                 .gpio           = FRITZ4020_74HC_GPIO_LED_INFO,
 145                 .active_low     = 1,
 146         }, {
 147                 .name           = "fritz4020:red:info",
 148                 .gpio           = FRITZ4020_74HC_GPIO_LED_INFO_RED,
 149                 .active_low     = 1,
 150         }, {
 151                 .name           = "fritz4020:green:power",
 152                 .gpio           = FRITZ4020_74HC_GPIO_LED_POWER,
 153                 .active_low     = 1,
 154         }, {
 155                 .name           = "fritz4020:green:wlan",
 156                 .gpio           = FRITZ4020_74HC_GPIO_LED_WLAN,
 157                 .active_low     = 1,
 158         }, {
 159                 .name           = "fritz4020:green:wan",
 160                 .gpio           = FRITZ4020_74HC_GPIO_LED_WAN,
 161                 .active_low     = 1,
 162         },
 163 };
 164
 165 static struct gpio_keys_button fritz4020_gpio_keys[] __initdata = {
 166         {
 167                 .desc                   = "RFKILL button",
 168                 .type                   = EV_KEY,
 169                 .code                   = KEY_RFKILL,
 170                 .debounce_interval      = FRITZ4020_KEYS_DEBOUNCE_INTERVAL,
 171                 .gpio                   = FRITZ4020_GPIO_BTN_WLAN,
 172                 .active_low             = 1,
 173         },
 174         {
 175                 .desc                   = "WPS button",
 176                 .type                   = EV_KEY,
 177                 .code                   = KEY_WPS_BUTTON,
 178                 .debounce_interval      = FRITZ4020_KEYS_DEBOUNCE_INTERVAL,
 179                 .gpio                   = FRITZ4020_GPIO_BTN_WPS,
 180                 .active_low             = 1,
 181         },
 182 };
 183
 184 static void __init fritz4020_setup(void) {
 185         u8 *urlader = (u8 *) KSEG1ADDR(0x1f000000);
 186         u8 wifi_mac[ETH_ALEN];
 187
 188         ath79_register_m25p80(&fritz4020_flash_data);
 189
 190         /* Initialize ethernet */
 191         ath79_extract_mac_reverse(urlader + FRTIZ4020_OFFSET_URLADER_WIFI_MAC_REVERSE, wifi_mac);
 192         ath79_setup_qca956x_eth_cfg(QCA956X_ETH_CFG_SW_PHY_SWAP |
 193                                     QCA956X_ETH_CFG_SW_PHY_ADDR_SWAP);
 194
 195         ath79_register_mdio(0, 0x0);
 196         ath79_register_mdio(1, 0x0);
 197         ath79_init_mac(ath79_eth0_data.mac_addr, wifi_mac, -1);
 198         ath79_init_mac(ath79_eth1_data.mac_addr, wifi_mac, -2);
 199
 200         /* WAN port */
 201         ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
 202         ath79_eth0_data.speed = SPEED_100;
 203         ath79_eth0_data.duplex = DUPLEX_FULL;
 204         ath79_eth0_data.phy_mask = BIT(0);
 205         ath79_register_eth(0);
 206
 207         /* LAN ports */
 208         ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
 209         ath79_eth1_data.speed = SPEED_1000;
 210         ath79_eth1_data.duplex = DUPLEX_FULL;
 211         ath79_switch_data.phy_poll_mask |= BIT(0);
 212         ath79_switch_data.phy4_mii_en = 1;
 213         ath79_register_eth(1);
 214
 215         /* Initialize 2.4GHz WiFi */
 216         ath79_register_wmac_simple();
 217
 218         /* Activate USB Power */
 219         gpio_request_one(FRITZ4020_74HC_GPIO_USB_RST,
 220                          GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
 221                          "USB power");
 222
 223         /* Initialize USB port */
 224         ath79_register_usb();
 225
 226         /* Register LED shift-register */
 227         spi_register_board_info(fritz4020_spi_info,
 228                                 ARRAY_SIZE(fritz4020_spi_info));
 229         platform_device_register(&fritz4020_spi_device);
 230
 231         /* Register GPIO buttons */
 232         ath79_register_gpio_keys_polled(-1, FRITZ4020_KEYS_POLL_INTERVAL,
 233                                         ARRAY_SIZE(fritz4020_gpio_keys),
 234                                         fritz4020_gpio_keys);
 235
 236         /* Register LEDs */
 237         ath79_register_leds_gpio(-1, ARRAY_SIZE(fritz4020_leds_gpio),
 238                                  fritz4020_leds_gpio);
 239 }
 240
 241 MIPS_MACHINE(ATH79_MACH_FRITZ4020, "FRITZ4020",
 242              "AVM FRITZ!Box 4020", fritz4020_setup);