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