[linux-2.6-omap-h63xx.git] /

/*
 * linux/arch/arm/mach-omap2/board-3430sdp.c
 *
 * Copyright (C) 2007 Texas Instruments
 *
 * Modified from mach-omap2/board-generic.c
 *
 * Initial code: Syed Mohammed Khasim
 *
 * 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 <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/err.h>
#include <linux/clk.h>

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

#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/board.h>
#include <asm/arch/common.h>
#include <asm/arch/dma.h>
#include <asm/arch/gpmc.h>

#include <asm/io.h>
#include <asm/delay.h>

#define SDP3430_FLASH_CS        0
#define SDP3430_SMC91X_CS       3

static struct mtd_partition sdp3430_partitions[] = {
        /* bootloader (U-Boot, etc) in first sector */
        {
                  .name         = "bootloader",
                  .offset               = 0,
                  .size         = SZ_256K,
                  .mask_flags   = MTD_WRITEABLE, /* force read-only */
        },
        /* bootloader params in the next sector */
        {
                  .name         = "params",
                  .offset               = MTDPART_OFS_APPEND,
                  .size         = SZ_128K,
                  .mask_flags   = 0,
        },
        /* kernel */
        {
                  .name         = "kernel",
                  .offset               = MTDPART_OFS_APPEND,
                  .size         = SZ_2M,
                  .mask_flags   = 0
        },
        /* file system */
        {
                  .name         = "filesystem",
                  .offset               = MTDPART_OFS_APPEND,
                  .size         = MTDPART_SIZ_FULL,
                  .mask_flags   = 0
        }
};

static struct flash_platform_data sdp3430_flash_data = {
        .map_name       = "cfi_probe",
        .width          = 2,
        .parts          = sdp3430_partitions,
        .nr_parts       = ARRAY_SIZE(sdp3430_partitions),
};

static struct resource sdp3430_flash_resource = {
        .start          = FLASH_BASE,
        .end            = FLASH_BASE + SZ_64M - 1,
        .flags          = IORESOURCE_MEM,
};

static struct platform_device sdp3430_flash_device = {
        .name           = "omapflash",
        .id             = 0,
        .dev            = {
                .platform_data  = &sdp3430_flash_data,
        },
        .num_resources  = 1,
        .resource       = &sdp3430_flash_resource,
};

static struct resource sdp3430_smc91x_resources[] = {
        [0] = {
                .start  = OMAP34XX_ETHR_START,
                .end    = OMAP34XX_ETHR_START + SZ_4K,
                .flags          = IORESOURCE_MEM,
        },
        [1] = {
                .start          = OMAP_GPIO_IRQ(OMAP34XX_ETHR_GPIO_IRQ),
                .end    = 0,
                .flags          = IORESOURCE_IRQ,
        },
};

static struct platform_device sdp3430_smc91x_device = {
        .name           = "smc91x",
        .id             = -1,
        .num_resources  = ARRAY_SIZE(sdp3430_smc91x_resources),
        .resource       = sdp3430_smc91x_resources,
};

static struct platform_device *sdp3430_devices[] __initdata = {
        &sdp3430_smc91x_device,
        &sdp3430_flash_device,
};

static inline void __init sdp3430_init_smc91x(void)
{
        int eth_cs;
        unsigned long cs_mem_base;
        unsigned int rate;
        struct clk *l3ck;

        eth_cs  = SDP3430_SMC91X_CS;

        l3ck = clk_get(NULL, "core_l3_ck");
        if (IS_ERR(l3ck))
                rate = 100000000;
        else
                rate = clk_get_rate(l3ck);

        if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
                printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
                return;
        }

        sdp3430_smc91x_resources[0].start = cs_mem_base + 0x0;
        sdp3430_smc91x_resources[0].end   = cs_mem_base + 0xf;
        udelay(100);

        if (omap_request_gpio(OMAP34XX_ETHR_GPIO_IRQ) < 0) {
                printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
                        OMAP34XX_ETHR_GPIO_IRQ);
                return;
        }
        omap_set_gpio_direction(OMAP34XX_ETHR_GPIO_IRQ, 1);
}

static void __init omap_3430sdp_init_irq(void)
{
        omap2_init_common_hw();
        omap_init_irq();
        omap_gpio_init();
        sdp3430_init_smc91x();
}

static struct omap_uart_config sdp3430_uart_config __initdata = {
        .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
};

static struct omap_board_config_kernel sdp3430_config[] = {
        { OMAP_TAG_UART,        &sdp3430_uart_config },
};

static void __init omap_3430sdp_init(void)
{
        platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
        omap_board_config = sdp3430_config;
        omap_board_config_size = ARRAY_SIZE(sdp3430_config);
        omap_serial_init();
}

static void __init omap_3430sdp_map_io(void)
{
        omap2_map_common_io();
}

MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
        /* Maintainer: Syed Khasim - Texas Instruments Inc */
        .phys_io        = 0x48000000,
        .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
        .boot_params    = 0x80000100,
        .map_io         = omap_3430sdp_map_io,
        .init_irq       = omap_3430sdp_init_irq,
        .init_machine   = omap_3430sdp_init,
        .timer          = &omap_timer,
MACHINE_END