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/*
 *  TP-Link Archer C58/C59 v1 board support
 *
 *  Copyright (C) 2017 Henryk Heisig <hyniu@o2.pl>
 *
 *  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/platform_device.h>
#include <linux/ath9k_platform.h>
#include <linux/ar8216_platform.h>
#include <asm/mach-ath79/ar71xx_regs.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/spi/spi_gpio.h>
#include <linux/spi/74x164.h>

#include "common.h"
#include "dev-m25p80.h"
#include "machtypes.h"
#include "pci.h"
#include "dev-ap9x-pci.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-spi.h"
#include "dev-usb.h"
#include "dev-wmac.h"

#define ARCHER_C59_V1_KEYS_POLL_INTERVAL        20
#define ARCHER_C59_V1_KEYS_DEBOUNCE_INTERVAL    (3 * ARCHER_C59_V1_KEYS_POLL_INTERVAL)

#define ARCHER_C59_V1_GPIO_BTN_RESET            21
#define ARCHER_C59_V1_GPIO_BTN_RFKILL           2
#define ARCHER_C59_V1_GPIO_BTN_WPS              1

#define ARCHER_C59_V1_GPIO_USB_POWER            22

#define ARCHER_C59_GPIO_SHIFT_OE                16
#define ARCHER_C59_GPIO_SHIFT_SER               17
#define ARCHER_C59_GPIO_SHIFT_SRCLK             18
#define ARCHER_C59_GPIO_SHIFT_SRCLR             19
#define ARCHER_C59_GPIO_SHIFT_RCLK              20

#define ARCHER_C59_74HC_GPIO_BASE               32
#define ARCHER_C59_74HC_GPIO_LED_POWER          (ARCHER_C59_74HC_GPIO_BASE + 0)
#define ARCHER_C59_74HC_GPIO_LED_WLAN2          (ARCHER_C59_74HC_GPIO_BASE + 1)
#define ARCHER_C59_74HC_GPIO_LED_WLAN5          (ARCHER_C59_74HC_GPIO_BASE + 2)
#define ARCHER_C59_74HC_GPIO_LED_LAN            (ARCHER_C59_74HC_GPIO_BASE + 3)
#define ARCHER_C59_74HC_GPIO_LED_WAN_GREEN      (ARCHER_C59_74HC_GPIO_BASE + 4)
#define ARCHER_C59_74HC_GPIO_LED_WAN_AMBER      (ARCHER_C59_74HC_GPIO_BASE + 5)
#define ARCHER_C59_74HC_GPIO_LED_WPS            (ARCHER_C59_74HC_GPIO_BASE + 6)
#define ARCHER_C59_74HC_GPIO_LED_USB            (ARCHER_C59_74HC_GPIO_BASE + 7)

#define ARCHER_C59_V1_SSR_BIT_0                 0
#define ARCHER_C59_V1_SSR_BIT_1                 1
#define ARCHER_C59_V1_SSR_BIT_2                 2
#define ARCHER_C59_V1_SSR_BIT_3                 3
#define ARCHER_C59_V1_SSR_BIT_4                 4
#define ARCHER_C59_V1_SSR_BIT_5                 5
#define ARCHER_C59_V1_SSR_BIT_6                 6
#define ARCHER_C59_V1_SSR_BIT_7                 7

#define ARCHER_C59_V1_WMAC_CALDATA_OFFSET       0x1000
#define ARCHER_C59_V1_PCI_CALDATA_OFFSET        0x5000

static struct gpio_led archer_c58_v1_leds_gpio[] __initdata = {
        {
                .name           = "archer-c58-v1:green:power",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_POWER,
                .active_low     = 1,
        },
        {
                .name           = "archer-c58-v1:green:wlan2g",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WLAN2,
                .active_low     = 1,
        },
        {
                .name           = "archer-c58-v1:green:wlan5g",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WLAN5,
                .active_low     = 1,
        },
        {
                .name           = "archer-c58-v1:green:lan",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_LAN,
                .active_low     = 1,
        },
        {
                .name           = "archer-c58-v1:green:wan",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WAN_GREEN,
                .active_low     = 1,
        },
        {
                .name           = "archer-c58-v1:amber:wan",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WAN_AMBER,
                .active_low     = 1,
        },
        {
                .name           = "archer-c58-v1:green:wps",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WPS,
                .active_low     = 1,
        },
};

static struct gpio_led archer_c59_v1_leds_gpio[] __initdata = {
        {
                .name           = "archer-c59-v1:green:power",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_POWER,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:green:wlan2g",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WLAN2,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:green:wlan5g",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WLAN5,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:green:lan",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_LAN,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:green:wan",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WAN_GREEN,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:amber:wan",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WAN_AMBER,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:green:wps",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_WPS,
                .active_low     = 1,
        },
        {
                .name           = "archer-c59-v1:green:usb",
                .gpio           = ARCHER_C59_74HC_GPIO_LED_USB,
                .active_low     = 1,
        },
};

static struct gpio_keys_button archer_c59_v1_gpio_keys[] __initdata = {
        {
                .desc                   = "Reset button",
                .type                   = EV_KEY,
                .code                   = KEY_RESTART,
                .debounce_interval      = ARCHER_C59_V1_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = ARCHER_C59_V1_GPIO_BTN_RESET,
                .active_low             = 1,
        },
        {
                .desc                   = "RFKILL button",
                .type                   = EV_KEY,
                .code                   = KEY_RFKILL,
                .debounce_interval      = ARCHER_C59_V1_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = ARCHER_C59_V1_GPIO_BTN_RFKILL,
                .active_low             = 1,
        },
        {
                .desc                   = "WPS button",
                .type                   = EV_KEY,
                .code                   = KEY_WPS_BUTTON,
                .debounce_interval      = ARCHER_C59_V1_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = ARCHER_C59_V1_GPIO_BTN_WPS,
                .active_low             = 1,
        },
};

static struct spi_gpio_platform_data archer_c59_v1_spi_data = {
        .sck            = ARCHER_C59_GPIO_SHIFT_SRCLK,
        .miso           = SPI_GPIO_NO_MISO,
        .mosi           = ARCHER_C59_GPIO_SHIFT_SER,
        .num_chipselect = 1,
};

static u8 archer_c59_v1_ssr_initdata[] = {
        BIT(ARCHER_C59_V1_SSR_BIT_7) |
        BIT(ARCHER_C59_V1_SSR_BIT_6) |
        BIT(ARCHER_C59_V1_SSR_BIT_5) |
        BIT(ARCHER_C59_V1_SSR_BIT_4) |
        BIT(ARCHER_C59_V1_SSR_BIT_3) |
        BIT(ARCHER_C59_V1_SSR_BIT_2) |
        BIT(ARCHER_C59_V1_SSR_BIT_1)
};

static struct gen_74x164_chip_platform_data archer_c59_v1_ssr_data = {
        .base = ARCHER_C59_74HC_GPIO_BASE,
        .num_registers = ARRAY_SIZE(archer_c59_v1_ssr_initdata),
        .init_data = archer_c59_v1_ssr_initdata,
};

static struct platform_device archer_c59_v1_spi_device = {
        .name           = "spi_gpio",
        .id             = 1,
        .dev = {
                .platform_data = &archer_c59_v1_spi_data,
        },
};

static struct spi_board_info archer_c59_v1_spi_info[] = {
        {
                .bus_num        = 1,
                .chip_select    = 0,
                .max_speed_hz   = 10000000,
                .modalias       = "74x164",
                .platform_data  =  &archer_c59_v1_ssr_data,
                .controller_data = (void *) ARCHER_C59_GPIO_SHIFT_RCLK,
        },
};

static void __init archer_c5x_v1_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f010008);
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);

        ath79_register_m25p80(NULL);
        spi_register_board_info(archer_c59_v1_spi_info,
                           ARRAY_SIZE(archer_c59_v1_spi_info));
        platform_device_register(&archer_c59_v1_spi_device);

        ath79_register_gpio_keys_polled(-1, ARCHER_C59_V1_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(archer_c59_v1_gpio_keys),
                                        archer_c59_v1_gpio_keys);

        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, mac, 1);
        ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);

        /* 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);

        ath79_register_wmac(art + ARCHER_C59_V1_WMAC_CALDATA_OFFSET, mac);
        ap91_pci_init(art + ARCHER_C59_V1_PCI_CALDATA_OFFSET, NULL);

        ath79_register_usb();
        gpio_request_one(ARCHER_C59_V1_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
        gpio_request_one(ARCHER_C59_GPIO_SHIFT_OE,
                         GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
                         "LED control");
        gpio_request_one(ARCHER_C59_GPIO_SHIFT_SRCLR,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "LED reset");
}

static void __init archer_c58_v1_setup(void)
{
        archer_c5x_v1_setup();
        ath79_register_leds_gpio(-1, ARRAY_SIZE(archer_c58_v1_leds_gpio),
                                archer_c58_v1_leds_gpio);
}

MIPS_MACHINE(ATH79_MACH_ARCHER_C58_V1, "ARCHER-C58-V1",
        "TP-LINK Archer C58 v1", archer_c58_v1_setup);

static void __init archer_c59_v1_setup(void)
{
        archer_c5x_v1_setup();
        ath79_register_leds_gpio(-1, ARRAY_SIZE(archer_c59_v1_leds_gpio),
                                archer_c59_v1_leds_gpio);
}

MIPS_MACHINE(ATH79_MACH_ARCHER_C59_V1, "ARCHER-C59-V1",
        "TP-LINK Archer C59 v1", archer_c59_v1_setup);