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cerf.c

/*
 * 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 <asm/irq.h>
#include <asm/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 <asm/arch/cerf.h>
#include <asm/arch/mcp.h>
#include "generic.h"

static struct resource cerfuart2_resources[] = {
      [0] = {
            .start      = 0x80030000,
            .end  = 0x8003ffff,
            .flags      = IORESOURCE_MEM,
      },
};

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

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

#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 = {
      .start            = SA1100_CS0_PHYS,
      .end        = SA1100_CS0_PHYS + SZ_32M - 1,
      .flags            = IORESOURCE_MEM,
};

static void __init cerf_init_irq(void)
{
      sa1100_init_irq();
      set_irq_type(CERF_ETH_IRQ, IRQT_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)
{
      platform_add_devices(cerf_devices, ARRAY_SIZE(cerf_devices));
      sa11x0_set_flash_data(&cerf_flash_data, &cerf_flash_resource, 1);
      sa11x0_set_mcp_data(&cerf_mcp_data);
}

MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
      /* Maintainer: support@intrinsyc.com */
      .phys_io    = 0x80000000,
      .io_pg_offst      = ((0xf8000000) >> 18) & 0xfffc,
      .map_io           = cerf_map_io,
      .init_irq   = cerf_init_irq,
      .timer            = &sa1100_timer,
      .init_machine     = cerf_init,
MACHINE_END

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