/*
 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
 * Copyright (C) 2008 Martin Michlmayr <tbm@cyrius.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 */
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include "common.h"
#include "mpp.h"
#include "orion5x.h"

#define MV2120_NOR_BOOT_BASE    0xf4000000
#define MV2120_NOR_BOOT_SIZE    SZ_512K

#define MV2120_GPIO_RTC_IRQ     3
#define MV2120_GPIO_KEY_RESET   17
#define MV2120_GPIO_KEY_POWER   18
#define MV2120_GPIO_POWER_OFF   19


/*****************************************************************************
 * Ethernet
 ****************************************************************************/
static struct mv643xx_eth_platform_data mv2120_eth_data = {
        .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
};

static struct mv_sata_platform_data mv2120_sata_data = {
        .n_ports        = 2,
};

static struct mtd_partition mv2120_partitions[] = {
        {
                .name   = "firmware",
                .size   = 0x00080000,
                .offset = 0,
        },
};

static struct physmap_flash_data mv2120_nor_flash_data = {
        .width          = 1,
        .parts          = mv2120_partitions,
        .nr_parts       = ARRAY_SIZE(mv2120_partitions)
};

static struct resource mv2120_nor_flash_resource = {
        .flags          = IORESOURCE_MEM,
        .start          = MV2120_NOR_BOOT_BASE,
        .end            = MV2120_NOR_BOOT_BASE + MV2120_NOR_BOOT_SIZE - 1,
};

static struct platform_device mv2120_nor_flash = {
        .name           = "physmap-flash",
        .id             = 0,
        .dev            = {
                .platform_data  = &mv2120_nor_flash_data,
        },
        .resource       = &mv2120_nor_flash_resource,
        .num_resources  = 1,
};

static struct gpio_keys_button mv2120_buttons[] = {
        {
                .code           = KEY_RESTART,
                .gpio           = MV2120_GPIO_KEY_RESET,
                .desc           = "reset",
                .active_low     = 1,
        }, {
                .code           = KEY_POWER,
                .gpio           = MV2120_GPIO_KEY_POWER,
                .desc           = "power",
                .active_low     = 1,
        },
};

static struct gpio_keys_platform_data mv2120_button_data = {
        .buttons        = mv2120_buttons,
        .nbuttons       = ARRAY_SIZE(mv2120_buttons),
};

static struct platform_device mv2120_button_device = {
        .name           = "gpio-keys",
        .id             = -1,
        .num_resources  = 0,
        .dev            = {
                .platform_data  = &mv2120_button_data,
        },
};


/****************************************************************************
 * General Setup
 ****************************************************************************/
static unsigned int mv2120_mpp_modes[] __initdata = {
        MPP0_GPIO,              /* Sys status LED */
        MPP1_GPIO,              /* Sys error LED */
        MPP2_GPIO,              /* OverTemp interrupt */
        MPP3_GPIO,              /* RTC interrupt */
        MPP4_GPIO,              /* V_LED 5V */
        MPP5_GPIO,              /* V_LED 3.3V */
        MPP6_UNUSED,
        MPP7_UNUSED,
        MPP8_GPIO,              /* SATA 0 fail LED */
        MPP9_GPIO,              /* SATA 1 fail LED */
        MPP10_UNUSED,
        MPP11_UNUSED,
        MPP12_SATA_LED,         /* SATA 0 presence */
        MPP13_SATA_LED,         /* SATA 1 presence */
        MPP14_SATA_LED,         /* SATA 0 active */
        MPP15_SATA_LED,         /* SATA 1 active */
        MPP16_UNUSED,
        MPP17_GPIO,             /* Reset button */
        MPP18_GPIO,             /* Power button */
        MPP19_GPIO,             /* Power off */
        0,
};

static struct i2c_board_info __initdata mv2120_i2c_rtc = {
        I2C_BOARD_INFO("pcf8563", 0x51),
        .irq    = 0,
};

static struct gpio_led mv2120_led_pins[] = {
        {
                .name                   = "mv2120:blue:health",
        },
        {
                .name                   = "mv2120:red:health",
        },
        {
                .name                   = "mv2120:led:bright",
                .default_trigger        = "default-on",
        },
        {
                .name                   = "mv2120:led:dimmed",
        },
        {
                .name                   = "mv2120:red:sata0",
        },
        {
                .name                   = "mv2120:red:sata1",
        },

};

static struct gpiod_lookup_table mv2120_leds_gpio_table = {
        .dev_id = "leds-gpio",
        .table = {
                GPIO_LOOKUP_IDX("orion_gpio0", 0, NULL,
                                0, GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP_IDX("orion_gpio0", 1, NULL,
                                1, GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP_IDX("orion_gpio0", 4, NULL,
                                2, GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP_IDX("orion_gpio0", 5, NULL,
                                3, GPIO_ACTIVE_HIGH),
                GPIO_LOOKUP_IDX("orion_gpio0", 8, NULL,
                                4, GPIO_ACTIVE_LOW),
                GPIO_LOOKUP_IDX("orion_gpio0", 9, NULL,
                                5, GPIO_ACTIVE_LOW),
                { },
        },
};

static struct gpio_led_platform_data mv2120_led_data = {
        .leds           = mv2120_led_pins,
        .num_leds       = ARRAY_SIZE(mv2120_led_pins),
};

static struct platform_device mv2120_leds = {
        .name   = "leds-gpio",
        .id     = -1,
        .dev    = {
                .platform_data  = &mv2120_led_data,
        }
};

static void mv2120_power_off(void)
{
        pr_info("%s: triggering power-off...\n", __func__);
        gpio_set_value(MV2120_GPIO_POWER_OFF, 0);
}

static void __init mv2120_init(void)
{
        /* Setup basic Orion functions. Need to be called early. */
        orion5x_init();

        orion5x_mpp_conf(mv2120_mpp_modes);

        /*
         * Configure peripherals.
         */
        orion5x_ehci0_init();
        orion5x_ehci1_init();
        orion5x_eth_init(&mv2120_eth_data);
        orion5x_i2c_init();
        orion5x_sata_init(&mv2120_sata_data);
        orion5x_uart0_init();
        orion5x_xor_init();

        mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
                                    ORION_MBUS_DEVBUS_BOOT_ATTR,
                                    MV2120_NOR_BOOT_BASE,
                                    MV2120_NOR_BOOT_SIZE);
        platform_device_register(&mv2120_nor_flash);

        platform_device_register(&mv2120_button_device);

        if (gpio_request(MV2120_GPIO_RTC_IRQ, "rtc") == 0) {
                if (gpio_direction_input(MV2120_GPIO_RTC_IRQ) == 0)
                        mv2120_i2c_rtc.irq = gpio_to_irq(MV2120_GPIO_RTC_IRQ);
                else
                        gpio_free(MV2120_GPIO_RTC_IRQ);
        }
        i2c_register_board_info(0, &mv2120_i2c_rtc, 1);
        gpiod_add_lookup_table(&mv2120_leds_gpio_table);
        platform_device_register(&mv2120_leds);

        /* register mv2120 specific power-off method */
        if (gpio_request(MV2120_GPIO_POWER_OFF, "POWEROFF") != 0 ||
            gpio_direction_output(MV2120_GPIO_POWER_OFF, 1) != 0)
                pr_err("mv2120: failed to setup power-off GPIO\n");
        register_platform_power_off(mv2120_power_off);
}

/* Warning: HP uses a wrong mach-type (=526) in their bootloader */
MACHINE_START(MV2120, "HP Media Vault mv2120")
        /* Maintainer: Martin Michlmayr <tbm@cyrius.com> */
        .atag_offset    = 0x100,
        .nr_irqs        = ORION5X_NR_IRQS,
        .init_machine   = mv2120_init,
        .map_io         = orion5x_map_io,
        .init_early     = orion5x_init_early,
        .init_irq       = orion5x_init_irq,
        .init_time      = orion5x_timer_init,
        .fixup          = tag_fixup_mem32,
        .restart        = orion5x_restart,
MACHINE_END