/*
 * arch/arm/mach-orion5x/rd88f5182-setup.c
 *
 * Marvell Orion-NAS Reference Design Setup
 *
 * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/ata_platform.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include "common.h"
#include "mpp.h"
#include "orion5x.h"

/*****************************************************************************
 * RD-88F5182 Info
 ****************************************************************************/

/*
 * 512K NOR flash Device bus boot chip select
 */

#define RD88F5182_NOR_BOOT_BASE         0xf4000000
#define RD88F5182_NOR_BOOT_SIZE         SZ_512K

/*
 * 16M NOR flash on Device bus chip select 1
 */

#define RD88F5182_NOR_BASE              0xfc000000
#define RD88F5182_NOR_SIZE              SZ_16M

/*
 * PCI
 */

#define RD88F5182_PCI_SLOT0_OFFS        7
#define RD88F5182_PCI_SLOT0_IRQ_A_PIN   7
#define RD88F5182_PCI_SLOT0_IRQ_B_PIN   6

/*****************************************************************************
 * 16M NOR Flash on Device bus CS1
 ****************************************************************************/

static struct physmap_flash_data rd88f5182_nor_flash_data = {
        .width          = 1,
};

static struct resource rd88f5182_nor_flash_resource = {
        .flags                  = IORESOURCE_MEM,
        .start                  = RD88F5182_NOR_BASE,
        .end                    = RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
};

static struct platform_device rd88f5182_nor_flash = {
        .name                   = "physmap-flash",
        .id                     = 0,
        .dev            = {
                .platform_data  = &rd88f5182_nor_flash_data,
        },
        .num_resources          = 1,
        .resource               = &rd88f5182_nor_flash_resource,
};

/*****************************************************************************
 * Use GPIO LED as CPU active indication
 ****************************************************************************/

#define RD88F5182_GPIO_LED              0

static struct gpio_led rd88f5182_gpio_led_pins[] = {
        {
                .name           = "rd88f5182:cpu",
                .default_trigger = "cpu0",
                .gpio           = RD88F5182_GPIO_LED,
        },
};

static struct gpio_led_platform_data rd88f5182_gpio_led_data = {
        .leds           = rd88f5182_gpio_led_pins,
        .num_leds       = ARRAY_SIZE(rd88f5182_gpio_led_pins),
};

static struct platform_device rd88f5182_gpio_leds = {
        .name   = "leds-gpio",
        .id     = -1,
        .dev    = {
                .platform_data = &rd88f5182_gpio_led_data,
        },
};

/*****************************************************************************
 * PCI
 ****************************************************************************/

static void __init rd88f5182_pci_preinit(void)
{
        int pin;

        /*
         * Configure PCI GPIO IRQ pins
         */
        pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
        if (gpio_request(pin, "PCI IntA") == 0) {
                if (gpio_direction_input(pin) == 0) {
                        irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
                } else {
                        printk(KERN_ERR "rd88f5182_pci_preinit failed to "
                                        "set_irq_type pin %d\n", pin);
                        gpio_free(pin);
                }
        } else {
                printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
        }

        pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
        if (gpio_request(pin, "PCI IntB") == 0) {
                if (gpio_direction_input(pin) == 0) {
                        irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
                } else {
                        printk(KERN_ERR "rd88f5182_pci_preinit failed to "
                                        "set_irq_type pin %d\n", pin);
                        gpio_free(pin);
                }
        } else {
                printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
        }
}

static int __init rd88f5182_pci_map_irq(const struct pci_dev *dev, u8 slot,
        u8 pin)
{
        int irq;

        /*
         * Check for devices with hard-wired IRQs.
         */
        irq = orion5x_pci_map_irq(dev, slot, pin);
        if (irq != -1)
                return irq;

        /*
         * PCI IRQs are connected via GPIOs
         */
        switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
        case 0:
                if (pin == 1)
                        return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
                else
                        return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
        default:
                return -1;
        }
}

static struct hw_pci rd88f5182_pci __initdata = {
        .nr_controllers = 2,
        .preinit        = rd88f5182_pci_preinit,
        .setup          = orion5x_pci_sys_setup,
        .scan           = orion5x_pci_sys_scan_bus,
        .map_irq        = rd88f5182_pci_map_irq,
};

static int __init rd88f5182_pci_init(void)
{
        if (machine_is_rd88f5182())
                pci_common_init(&rd88f5182_pci);

        return 0;
}

subsys_initcall(rd88f5182_pci_init);

/*****************************************************************************
 * Ethernet
 ****************************************************************************/

static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
        .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
};

/*****************************************************************************
 * RTC DS1338 on I2C bus
 ****************************************************************************/
static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
        I2C_BOARD_INFO("ds1338", 0x68),
};

/*****************************************************************************
 * Sata
 ****************************************************************************/
static struct mv_sata_platform_data rd88f5182_sata_data = {
        .n_ports        = 2,
};

/*****************************************************************************
 * General Setup
 ****************************************************************************/
static unsigned int rd88f5182_mpp_modes[] __initdata = {
        MPP0_GPIO,              /* Debug Led */
        MPP1_GPIO,              /* Reset Switch */
        MPP2_UNUSED,
        MPP3_GPIO,              /* RTC Int */
        MPP4_GPIO,
        MPP5_GPIO,
        MPP6_GPIO,              /* PCI_intA */
        MPP7_GPIO,              /* PCI_intB */
        MPP8_UNUSED,
        MPP9_UNUSED,
        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_UNUSED,
        MPP18_UNUSED,
        MPP19_UNUSED,
        0,
};

static void __init rd88f5182_init(void)
{
        /*
         * Setup basic Orion functions. Need to be called early.
         */
        orion5x_init();

        orion5x_mpp_conf(rd88f5182_mpp_modes);

        /*
         * MPP[20] PCI Clock to MV88F5182
         * MPP[21] PCI Clock to mini PCI CON11
         * MPP[22] USB 0 over current indication
         * MPP[23] USB 1 over current indication
         * MPP[24] USB 1 over current enable
         * MPP[25] USB 0 over current enable
         */

        /*
         * Configure peripherals.
         */
        orion5x_ehci0_init();
        orion5x_ehci1_init();
        orion5x_eth_init(&rd88f5182_eth_data);
        orion5x_i2c_init();
        orion5x_sata_init(&rd88f5182_sata_data);
        orion5x_uart0_init();
        orion5x_xor_init();

        mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
                                    ORION_MBUS_DEVBUS_BOOT_ATTR,
                                    RD88F5182_NOR_BOOT_BASE,
                                    RD88F5182_NOR_BOOT_SIZE);
        mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(1),
                                    ORION_MBUS_DEVBUS_ATTR(1),
                                    RD88F5182_NOR_BASE,
                                    RD88F5182_NOR_SIZE);
        platform_device_register(&rd88f5182_nor_flash);
        platform_device_register(&rd88f5182_gpio_leds);

        i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
}

MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
        /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
        .atag_offset    = 0x100,
        .nr_irqs        = ORION5X_NR_IRQS,
        .init_machine   = rd88f5182_init,
        .map_io         = orion5x_map_io,
        .init_early     = orion5x_init_early,
        .init_irq       = orion5x_init_irq,
        .init_time      = orion5x_timer_init,
        .restart        = orion5x_restart,
MACHINE_END