cerf.c

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/*
 * linux/arch/arm/mach-sa1100/cerf.c
 *
 * 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.
 *
 * Apr-2003 : Removed some old PDA crud [FB]
 * Oct-2003 : Added uart2 resource [FB]
 * Jan-2004 : Removed io map for flash [FB]
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/gpio.h>
#include <linux/leds.h>

#include <mach/hardware.h>
#include <asm/setup.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <asm/mach/serial_sa1100.h>

#include <mach/cerf.h>
#include <linux/platform_data/mfd-mcp-sa11x0.h>
#include <mach/irqs.h>
#include "generic.h"

static struct resource cerfuart2_resources[] = {
    [0] = DEFINE_RES_MEM(0x80030000, SZ_64K),
};

static struct platform_device cerfuart2_device = {
    .name       = "sa11x0-uart",
    .id     = 2,
    .num_resources  = ARRAY_SIZE(cerfuart2_resources),
    .resource   = cerfuart2_resources,
};

/* LEDs */
struct gpio_led cerf_gpio_leds[] = {
    {
        .name           = "cerf:d0",
        .default_trigger    = "heartbeat",
        .gpio           = 0,
    },
    {
        .name           = "cerf:d1",
        .default_trigger    = "cpu0",
        .gpio           = 1,
    },
    {
        .name           = "cerf:d2",
        .default_trigger    = "default-on",
        .gpio           = 2,
    },
    {
        .name           = "cerf:d3",
        .default_trigger    = "default-on",
        .gpio           = 3,
    },

};

static struct gpio_led_platform_data cerf_gpio_led_info = {
    .leds       = cerf_gpio_leds,
    .num_leds   = ARRAY_SIZE(cerf_gpio_leds),
};

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


static struct platform_device *cerf_devices[] __initdata = {
    &cerfuart2_device,
    &cerf_leds,
};

#ifdef CONFIG_SA1100_CERF_FLASH_32MB
#  define CERF_FLASH_SIZE   0x02000000
#elif defined CONFIG_SA1100_CERF_FLASH_16MB
#  define CERF_FLASH_SIZE   0x01000000
#elif defined CONFIG_SA1100_CERF_FLASH_8MB
#  define CERF_FLASH_SIZE   0x00800000
#else
#  error "Undefined flash size for CERF"
#endif

static struct mtd_partition cerf_partitions[] = {
    {
        .name       = "Bootloader",
        .size       = 0x00020000,
        .offset     = 0x00000000,
    }, {
        .name       = "Params",
        .size       = 0x00040000,
        .offset     = 0x00020000,
    }, {
        .name       = "Kernel",
        .size       = 0x00100000,
        .offset     = 0x00060000,
    }, {
        .name       = "Filesystem",
        .size       = CERF_FLASH_SIZE-0x00160000,
        .offset     = 0x00160000,
    }
};

static struct flash_platform_data cerf_flash_data = {
    .map_name   = "cfi_probe",
    .parts      = cerf_partitions,
    .nr_parts   = ARRAY_SIZE(cerf_partitions),
};

static struct resource cerf_flash_resource =
    DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M);

static void __init cerf_init_irq(void)
{
    sa1100_init_irq();
    irq_set_irq_type(CERF_ETH_IRQ, IRQ_TYPE_EDGE_RISING);
}

static struct map_desc cerf_io_desc[] __initdata = {
    {   /* Crystal Ethernet Chip */
        .virtual    =  0xf0000000,
        .pfn        = __phys_to_pfn(0x08000000),
        .length     = 0x00100000,
        .type       = MT_DEVICE
    }
};

static void __init cerf_map_io(void)
{
    sa1100_map_io();
    iotable_init(cerf_io_desc, ARRAY_SIZE(cerf_io_desc));

    sa1100_register_uart(0, 3);
    sa1100_register_uart(1, 2); /* disable this and the uart2 device for sa1100_fir */
    sa1100_register_uart(2, 1);

    /* set some GPDR bits here while it's safe */
    GPDR |= CERF_GPIO_CF_RESET;
}

static struct mcp_plat_data cerf_mcp_data = {
    .mccr0      = MCCR0_ADM,
    .sclk_rate  = 11981000,
};

static void __init cerf_init(void)
{
    sa11x0_ppc_configure_mcp();
    platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
    sa11x0_register_mtd(&cerf_flash_data, &cerf_flash_resource, 1);
    sa11x0_register_mcp(&cerf_mcp_data);
}

MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
    /* Maintainer: [email protected] */
    .map_io     = cerf_map_io,
    .nr_irqs    = SA1100_NR_IRQS,
    .init_irq   = cerf_init_irq,
    .timer      = &sa1100_timer,
    .init_machine   = cerf_init,
    .init_late  = sa11x0_init_late,
    .restart    = sa11x0_restart,
MACHINE_END