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cd02d4faf9
Buttons of AVM FritzBox 4020 are incorrectly flagged as active high. This was an oversight as RFKill button was working as expected even with incorrectly flagged GPIO. Signed-off-by: David Bauer <mail@david-bauer.net>
243 lines
6.5 KiB
C
243 lines
6.5 KiB
C
/*
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* AVM FRITZ!Box 4020 board support
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*
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* Copyright (C) 2018 David Bauer <mail@david-bauer.net>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/ath9k_platform.h>
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#include <linux/etherdevice.h>
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#include <linux/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/platform_data/mdio-gpio.h>
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#include <linux/spi/spi_gpio.h>
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#include <linux/spi/74x164.h>
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#include <asm/mach-ath79/ath79.h>
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#include <asm/mach-ath79/ar71xx_regs.h>
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#include "common.h"
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#include "dev-eth.h"
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#include "dev-gpio-buttons.h"
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#include "dev-leds-gpio.h"
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#include "dev-m25p80.h"
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#include "dev-spi.h"
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#include "dev-usb.h"
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#include "dev-wmac.h"
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#include "machtypes.h"
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#define FRITZ4020_GPIO_SHIFT_SER 19 /* DS, Data Serial Input */
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#define FRITZ4020_GPIO_SHIFT_SRCLK 20 /* SHCP, Shift Reg Clock Input */
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#define FRITZ4020_SSR_BIT_0 0
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#define FRITZ4020_SSR_BIT_1 1
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#define FRITZ4020_SSR_BIT_2 2
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#define FRITZ4020_SSR_BIT_3 3
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#define FRITZ4020_SSR_BIT_4 4
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#define FRITZ4020_SSR_BIT_5 5
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#define FRITZ4020_SSR_BIT_6 6
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#define FRITZ4020_SSR_BIT_7 7
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#define FRITZ4020_74HC_GPIO_BASE 32
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#define FRITZ4020_74HC_GPIO_LED_LAN (FRITZ4020_74HC_GPIO_BASE + 0)
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#define FRITZ4020_74HC_GPIO_LED_INFO_RED (FRITZ4020_74HC_GPIO_BASE + 1)
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#define FRITZ4020_74HC_GPIO_LED_POWER (FRITZ4020_74HC_GPIO_BASE + 2)
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#define FRITZ4020_74HC_GPIO_LED_WLAN (FRITZ4020_74HC_GPIO_BASE + 3)
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#define FRITZ4020_74HC_GPIO_LED_WAN (FRITZ4020_74HC_GPIO_BASE + 4)
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#define FRITZ4020_74HC_GPIO_USB_RST (FRITZ4020_74HC_GPIO_BASE + 5)
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#define FRITZ4020_74HC_GPIO_LED_INFO (FRITZ4020_74HC_GPIO_BASE + 6)
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#define FRITZ4020_GPIO_BTN_WPS 2
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#define FRITZ4020_GPIO_BTN_WLAN 21
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#define FRITZ4020_KEYS_POLL_INTERVAL 20 /* msecs */
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#define FRITZ4020_KEYS_DEBOUNCE_INTERVAL (3 * FRITZ4020_KEYS_POLL_INTERVAL)
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#define FRTIZ4020_OFFSET_URLADER_WIFI_MAC_REVERSE 0x1979
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static struct spi_gpio_platform_data fritz4020_spi_data = {
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.sck = FRITZ4020_GPIO_SHIFT_SRCLK,
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.miso = SPI_GPIO_NO_MISO,
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.mosi = FRITZ4020_GPIO_SHIFT_SER,
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.num_chipselect = 1,
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};
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static u8 fritz4020_ssr_initdata[] = {
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BIT(FRITZ4020_SSR_BIT_7) |
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BIT(FRITZ4020_SSR_BIT_6) |
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BIT(FRITZ4020_SSR_BIT_5) |
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BIT(FRITZ4020_SSR_BIT_4) |
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BIT(FRITZ4020_SSR_BIT_3) |
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BIT(FRITZ4020_SSR_BIT_2) |
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BIT(FRITZ4020_SSR_BIT_1)
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};
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static struct gen_74x164_chip_platform_data fritz4020_ssr_data = {
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.base = FRITZ4020_74HC_GPIO_BASE,
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.num_registers = ARRAY_SIZE(fritz4020_ssr_initdata),
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.init_data = fritz4020_ssr_initdata,
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};
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static struct platform_device fritz4020_spi_device = {
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.name = "spi_gpio",
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.id = 1,
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.dev = {
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.platform_data = &fritz4020_spi_data,
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},
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};
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static struct spi_board_info fritz4020_spi_info[] = {
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{
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.bus_num = 1,
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.chip_select = 0,
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.max_speed_hz = 10000000,
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.modalias = "74x164",
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.platform_data = &fritz4020_ssr_data,
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.controller_data = (void *) 0x0,
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},
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};
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static struct mtd_partition fritz4020_flash_partitions[] = {
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{
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.name = "urlader",
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.offset = 0,
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.size = 0x0020000,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "firmware",
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.offset = 0x0020000,
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.size = 0x0EE0000,
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}, {
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.name = "tffs (1)",
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.offset = 0x0f00000,
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.size = 0x0080000,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "tffs (2)",
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.offset = 0x0f80000,
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.size = 0x0080000,
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.mask_flags = MTD_WRITEABLE,
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}
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};
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static struct flash_platform_data fritz4020_flash_data = {
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.parts = fritz4020_flash_partitions,
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.nr_parts = ARRAY_SIZE(fritz4020_flash_partitions),
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};
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static struct gpio_led fritz4020_leds_gpio[] __initdata = {
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{
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.name = "fritz4020:green:lan",
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.gpio = FRITZ4020_74HC_GPIO_LED_LAN,
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.active_low = 1,
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}, {
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.name = "fritz4020:green:info",
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.gpio = FRITZ4020_74HC_GPIO_LED_INFO,
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.active_low = 1,
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}, {
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.name = "fritz4020:red:info",
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.gpio = FRITZ4020_74HC_GPIO_LED_INFO_RED,
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.active_low = 1,
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}, {
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.name = "fritz4020:green:power",
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.gpio = FRITZ4020_74HC_GPIO_LED_POWER,
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.active_low = 1,
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}, {
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.name = "fritz4020:green:wlan",
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.gpio = FRITZ4020_74HC_GPIO_LED_WLAN,
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.active_low = 1,
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}, {
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.name = "fritz4020:green:wan",
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.gpio = FRITZ4020_74HC_GPIO_LED_WAN,
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.active_low = 1,
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},
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};
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static struct gpio_keys_button fritz4020_gpio_keys[] __initdata = {
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{
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.desc = "RFKILL button",
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.type = EV_KEY,
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.code = KEY_RFKILL,
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.debounce_interval = FRITZ4020_KEYS_DEBOUNCE_INTERVAL,
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.gpio = FRITZ4020_GPIO_BTN_WLAN,
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.active_low = 1,
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},
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{
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.desc = "WPS button",
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.type = EV_KEY,
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.code = KEY_WPS_BUTTON,
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.debounce_interval = FRITZ4020_KEYS_DEBOUNCE_INTERVAL,
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.gpio = FRITZ4020_GPIO_BTN_WPS,
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.active_low = 1,
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},
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};
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static void __init fritz4020_setup(void) {
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u8 *urlader = (u8 *) KSEG1ADDR(0x1f000000);
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u8 wifi_mac[ETH_ALEN];
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ath79_register_m25p80(&fritz4020_flash_data);
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/* Initialize ethernet */
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ath79_extract_mac_reverse(urlader + FRTIZ4020_OFFSET_URLADER_WIFI_MAC_REVERSE, wifi_mac);
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ath79_setup_qca956x_eth_cfg(QCA956X_ETH_CFG_SW_PHY_SWAP |
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QCA956X_ETH_CFG_SW_PHY_ADDR_SWAP);
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ath79_register_mdio(0, 0x0);
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ath79_register_mdio(1, 0x0);
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ath79_init_mac(ath79_eth0_data.mac_addr, wifi_mac, -1);
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ath79_init_mac(ath79_eth1_data.mac_addr, wifi_mac, -2);
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/* WAN port */
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ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
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ath79_eth0_data.speed = SPEED_100;
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ath79_eth0_data.duplex = DUPLEX_FULL;
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ath79_eth0_data.phy_mask = BIT(0);
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ath79_register_eth(0);
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/* LAN ports */
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ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
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ath79_eth1_data.speed = SPEED_1000;
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ath79_eth1_data.duplex = DUPLEX_FULL;
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ath79_switch_data.phy_poll_mask |= BIT(0);
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ath79_switch_data.phy4_mii_en = 1;
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ath79_register_eth(1);
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/* Initialize 2.4GHz WiFi */
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ath79_register_wmac_simple();
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/* Activate USB Power */
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gpio_request_one(FRITZ4020_74HC_GPIO_USB_RST,
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GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
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"USB power");
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/* Initialize USB port */
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ath79_register_usb();
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/* Register LED shift-register */
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spi_register_board_info(fritz4020_spi_info,
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ARRAY_SIZE(fritz4020_spi_info));
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platform_device_register(&fritz4020_spi_device);
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/* Register GPIO buttons */
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ath79_register_gpio_keys_polled(-1, FRITZ4020_KEYS_POLL_INTERVAL,
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ARRAY_SIZE(fritz4020_gpio_keys),
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fritz4020_gpio_keys);
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/* Register LEDs */
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ath79_register_leds_gpio(-1, ARRAY_SIZE(fritz4020_leds_gpio),
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fritz4020_leds_gpio);
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}
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MIPS_MACHINE(ATH79_MACH_FRITZ4020, "FRITZ4020",
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"AVM FRITZ!Box 4020", fritz4020_setup);
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