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/*
 *  Cellvision/SparkLAN boards
 *
 *  Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
 *
 *  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 "cellvision.h"

#include <prom/admboot.h>

#define CELLVISION_GPIO_FLASH_A20       ADM5120_GPIO_PIN5
#define CELLVISION_GPIO_DEV_MASK        (1 << CELLVISION_GPIO_FLASH_A20)

#define CELLVISION_CONFIG_OFFSET        0x8000
#define CELLVISION_CONFIG_SIZE          0x1000

static struct mtd_partition cas6xx_partitions[] = {
        {
                .name   = "admboot",
                .offset = 0,
                .size   = 32*1024,
                .mask_flags = MTD_WRITEABLE,
        } , {
                .name   = "config",
                .offset = MTDPART_OFS_APPEND,
                .size   = 32*1024,
        } , {
                .name   = "nvfs1",
                .offset = MTDPART_OFS_APPEND,
                .size   = 64*1024,
        } , {
                .name   = "nvfs2",
                .offset = MTDPART_OFS_APPEND,
                .size   = 64*1024,
        } , {
                .name   = "firmware",
                .offset = MTDPART_OFS_APPEND,
                .size   = MTDPART_SIZ_FULL,
        }
};

static struct mtd_partition cas7xx_partitions[] = {
        {
                .name   = "admboot",
                .offset = 0,
                .size   = 32*1024,
                .mask_flags = MTD_WRITEABLE,
        } , {
                .name   = "config",
                .offset = MTDPART_OFS_APPEND,
                .size   = 32*1024,
        } , {
                .name   = "nvfs",
                .offset = MTDPART_OFS_APPEND,
                .size   = 128*1024,
        } , {
                .name   = "firmware",
                .offset = MTDPART_OFS_APPEND,
                .size   = MTDPART_SIZ_FULL,
        }
};

static void switch_bank_gpio5(unsigned bank)
{
        switch (bank) {
        case 0:
                gpio_set_value(CELLVISION_GPIO_FLASH_A20, 0);
                break;
        case 1:
                gpio_set_value(CELLVISION_GPIO_FLASH_A20, 1);
                break;
        }
}

static void __init cellvision_flash_setup(void)
{
        /* setup flash A20 line */
        gpio_request(CELLVISION_GPIO_FLASH_A20, NULL);
        gpio_direction_output(CELLVISION_GPIO_FLASH_A20, 0);

        adm5120_flash0_data.switch_bank = switch_bank_gpio5;
        adm5120_add_device_flash(0);
}

void __init cellvision_mac_setup(void)
{
        u8 mac_base[6];
        int err;

        err = admboot_get_mac_base(CELLVISION_CONFIG_OFFSET,
                                   CELLVISION_CONFIG_SIZE, mac_base);

        if ((err) || !is_valid_ether_addr(mac_base))
                random_ether_addr(mac_base);

        adm5120_setup_eth_macs(mac_base);
}

void __init cas6xx_flash_setup(void)
{
        adm5120_flash0_data.nr_parts = ARRAY_SIZE(cas6xx_partitions);
        adm5120_flash0_data.parts = cas6xx_partitions;

        cellvision_flash_setup();
}

void __init cas7xx_flash_setup(void)
{
        adm5120_flash0_data.nr_parts = ARRAY_SIZE(cas7xx_partitions);
        adm5120_flash0_data.parts = cas7xx_partitions;

        cellvision_flash_setup();
}

void __init cas6xx_setup(void)
{
        cas6xx_flash_setup();
        adm5120_add_device_uart(0);
        adm5120_add_device_uart(1);
        adm5120_add_device_switch(1, NULL);
}

MIPS_MACHINE(MACH_ADM5120_CAS630, "CAS-630", "Cellvision CAS-630/630W",
             cas6xx_setup);
MIPS_MACHINE(MACH_ADM5120_CAS670, "CAS-670", "Cellvision CAS-670/670W",
             cas6xx_setup);

void __init cas7xx_setup(void)
{
        cas7xx_flash_setup();
        cellvision_mac_setup();
        adm5120_add_device_uart(0);
        adm5120_add_device_uart(1);
        adm5120_add_device_switch(1, NULL);
}

MIPS_MACHINE(MACH_ADM5120_CAS700, "CAS-700", "Cellvision CAS-700/700W",
             cas7xx_setup);
MIPS_MACHINE(MACH_ADM5120_CAS790, "CAS-790", "Cellvision CAS-790",
             cas7xx_setup);
MIPS_MACHINE(MACH_ADM5120_CAS861, "CAS-861", "Cellvision CAS-861/861W",
             cas7xx_setup);