colibri-pxa270.c

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/*
 *  linux/arch/arm/mach-pxa/colibri-pxa270.c
 *
 *  Support for Toradex PXA270 based Colibri module
 *  Daniel Mack <[email protected]>
 *  Marek Vasut <[email protected]>
 *
 *  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/init.h>
#include <linux/interrupt.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/ucb1400.h>

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

#include <mach/audio.h>
#include <mach/colibri.h>
#include <mach/pxa27x.h>

#include "devices.h"
#include "generic.h"

/******************************************************************************
 * Evaluation board MFP
 ******************************************************************************/
#ifdef   CONFIG_MACH_COLIBRI_EVALBOARD
static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
    /* MMC */
    GPIO32_MMC_CLK,
    GPIO92_MMC_DAT_0,
    GPIO109_MMC_DAT_1,
    GPIO110_MMC_DAT_2,
    GPIO111_MMC_DAT_3,
    GPIO112_MMC_CMD,
    GPIO0_GPIO, /* SD detect */

    /* FFUART */
    GPIO39_FFUART_TXD,
    GPIO34_FFUART_RXD,

    /* UHC */
    GPIO88_USBH1_PWR,
    GPIO89_USBH1_PEN,
    GPIO119_USBH2_PWR,
    GPIO120_USBH2_PEN,

    /* PCMCIA */
    GPIO85_nPCE_1,
    GPIO54_nPCE_2,
    GPIO55_nPREG,
    GPIO50_nPIOR,
    GPIO51_nPIOW,
    GPIO49_nPWE,
    GPIO48_nPOE,
    GPIO57_nIOIS16,
    GPIO56_nPWAIT,
    GPIO104_PSKTSEL,
    GPIO53_GPIO,    /* RESET */
    GPIO83_GPIO,    /* BVD1 */
    GPIO82_GPIO,    /* BVD2 */
    GPIO1_GPIO, /* READY */
    GPIO84_GPIO,    /* DETECT */
    GPIO107_GPIO,   /* PPEN */

    /* I2C */
    GPIO117_I2C_SCL,
    GPIO118_I2C_SDA,
};
#else
static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
#endif

#ifdef  CONFIG_MACH_COLIBRI_PXA270_INCOME
static mfp_cfg_t income_pin_config[] __initdata = {
    /* MMC */
    GPIO32_MMC_CLK,
    GPIO92_MMC_DAT_0,
    GPIO109_MMC_DAT_1,
    GPIO110_MMC_DAT_2,
    GPIO111_MMC_DAT_3,
    GPIO112_MMC_CMD,
    GPIO0_GPIO, /* SD detect */
    GPIO1_GPIO, /* SD read-only */

    /* FFUART */
    GPIO39_FFUART_TXD,
    GPIO34_FFUART_RXD,

    /* BFUART */
    GPIO42_BTUART_RXD,
    GPIO43_BTUART_TXD,
    GPIO45_BTUART_RTS,

    /* STUART */
    GPIO46_STUART_RXD,
    GPIO47_STUART_TXD,

    /* UHC */
    GPIO88_USBH1_PWR,
    GPIO89_USBH1_PEN,

    /* LCD */
    GPIOxx_LCD_TFT_16BPP,

    /* PWM */
    GPIO16_PWM0_OUT,

    /* I2C */
    GPIO117_I2C_SCL,
    GPIO118_I2C_SDA,

    /* LED */
    GPIO54_GPIO,    /* LED A */
    GPIO55_GPIO,    /* LED B */
};
#else
static mfp_cfg_t income_pin_config[] __initdata = {};
#endif

/******************************************************************************
 * Pin configuration
 ******************************************************************************/
static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
    /* Ethernet */
    GPIO78_nCS_2,   /* Ethernet CS */
    GPIO114_GPIO,   /* Ethernet IRQ */

    /* AC97 */
    GPIO28_AC97_BITCLK,
    GPIO29_AC97_SDATA_IN_0,
    GPIO30_AC97_SDATA_OUT,
    GPIO31_AC97_SYNC,
    GPIO95_AC97_nRESET,
    GPIO98_AC97_SYSCLK,
    GPIO113_GPIO,   /* Touchscreen IRQ */
};

/******************************************************************************
 * NOR Flash
 ******************************************************************************/
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition colibri_partitions[] = {
    {
        .name =     "Bootloader",
        .offset =   0x00000000,
        .size =     0x00040000,
        .mask_flags =   MTD_WRITEABLE   /* force read-only */
    }, {
        .name =     "Kernel",
        .offset =   0x00040000,
        .size =     0x00400000,
        .mask_flags =   0
    }, {
        .name =     "Rootfs",
        .offset =   0x00440000,
        .size =     MTDPART_SIZ_FULL,
        .mask_flags =   0
    }
};

static struct physmap_flash_data colibri_flash_data[] = {
    {
        .width      = 4,            /* bankwidth in bytes */
        .parts      = colibri_partitions,
        .nr_parts   = ARRAY_SIZE(colibri_partitions)
    }
};

static struct resource colibri_pxa270_flash_resource = {
    .start  = PXA_CS0_PHYS,
    .end    = PXA_CS0_PHYS + SZ_32M - 1,
    .flags  = IORESOURCE_MEM,
};

static struct platform_device colibri_pxa270_flash_device = {
    .name   = "physmap-flash",
    .id = 0,
    .dev    = {
        .platform_data = colibri_flash_data,
    },
    .resource = &colibri_pxa270_flash_resource,
    .num_resources = 1,
};

static void __init colibri_pxa270_nor_init(void)
{
    platform_device_register(&colibri_pxa270_flash_device);
}
#else
static inline void colibri_pxa270_nor_init(void) {}
#endif

/******************************************************************************
 * Ethernet
 ******************************************************************************/
#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
static struct resource colibri_pxa270_dm9000_resources[] = {
    {
        .start  = PXA_CS2_PHYS,
        .end    = PXA_CS2_PHYS + 3,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = PXA_CS2_PHYS + 4,
        .end    = PXA_CS2_PHYS + 4 + 500,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
        .end    = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
        .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
    },
};

static struct platform_device colibri_pxa270_dm9000_device = {
    .name       = "dm9000",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
    .resource   = colibri_pxa270_dm9000_resources,
};

static void __init colibri_pxa270_eth_init(void)
{
    platform_device_register(&colibri_pxa270_dm9000_device);
}
#else
static inline void colibri_pxa270_eth_init(void) {}
#endif

/******************************************************************************
 * Audio and Touchscreen
 ******************************************************************************/
#if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
    defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
    .reset_gpio = 95,
};

static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
    .irq        = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
};

static struct platform_device colibri_pxa270_ucb1400_device = {
    .name       = "ucb1400_core",
    .id     = -1,
    .dev        = {
        .platform_data = &colibri_pxa270_ucb1400_pdata,
    },
};

static void __init colibri_pxa270_tsc_init(void)
{
    pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
    platform_device_register(&colibri_pxa270_ucb1400_device);
}
#else
static inline void colibri_pxa270_tsc_init(void) {}
#endif

static int colibri_pxa270_baseboard;
core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);

static void __init colibri_pxa270_init(void)
{
    pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));

    colibri_pxa270_nor_init();
    colibri_pxa270_eth_init();
    colibri_pxa270_tsc_init();

    switch (colibri_pxa270_baseboard) {
    case COLIBRI_EVALBOARD:
        pxa2xx_mfp_config(ARRAY_AND_SIZE(
            colibri_pxa270_evalboard_pin_config));
        colibri_evalboard_init();
        break;
    case COLIBRI_PXA270_INCOME:
        pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
        colibri_pxa270_income_boardinit();
        break;
    default:
        printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
                colibri_pxa270_baseboard);
    }
}

/* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
 * with the INCOME mach type or with COLIBRI and the kernel parameter
 * "colibri_pxa270_baseboard=1"
 */
static void __init colibri_pxa270_income_init(void)
{
    colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
    colibri_pxa270_init();
}

MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
    .atag_offset    = 0x100,
    .init_machine   = colibri_pxa270_init,
    .map_io     = pxa27x_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa27x_init_irq,
    .handle_irq = pxa27x_handle_irq,
    .timer      = &pxa_timer,
    .restart    = pxa_restart,
MACHINE_END

MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
    .atag_offset    = 0x100,
    .init_machine   = colibri_pxa270_income_init,
    .map_io     = pxa27x_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa27x_init_irq,
    .handle_irq = pxa27x_handle_irq,
    .timer      = &pxa_timer,
    .restart    = pxa_restart,
MACHINE_END