csb726.c

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/*
 *  Support for Cogent CSB726
 *
 *  Copyright (c) 2008 Dmitry Eremin-Solenikov
 *
 *  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/io.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>
#include <linux/sm501.h>
#include <linux/smsc911x.h>
#include <linux/i2c/pxa-i2c.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/csb726.h>
#include <mach/pxa27x.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <mach/audio.h>
#include <mach/smemc.h>

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

/*
 * n/a: 2, 5, 6, 7, 8, 23, 24, 25, 26, 27, 87, 88, 89,
 * nu: 58 -- 77, 90, 91, 93, 102, 105-108, 114-116,
 * XXX: 21,
 * XXX: 79 CS_3 for LAN9215 or PSKTSEL on R2, R3
 * XXX: 33 CS_5 for LAN9215 on R1
 */

static unsigned long csb726_pin_config[] = {
    GPIO78_nCS_2, /* EXP_CS */
    GPIO79_nCS_3, /* SMSC9215 */
    GPIO80_nCS_4, /* SM501 */

    GPIO52_GPIO, /* #SMSC9251 int */
    GPIO53_GPIO, /* SM501 int */

    GPIO1_GPIO, /* GPIO0 */
    GPIO11_GPIO, /* GPIO1 */
    GPIO9_GPIO, /* GPIO2 */
    GPIO10_GPIO, /* GPIO3 */
    GPIO16_PWM0_OUT, /* or GPIO4 */
    GPIO17_PWM1_OUT, /* or GPIO5 */
    GPIO94_GPIO, /* GPIO6 */
    GPIO95_GPIO, /* GPIO7 */
    GPIO96_GPIO, /* GPIO8 */
    GPIO97_GPIO, /* GPIO9 */
    GPIO15_GPIO, /* EXP_IRQ */
    GPIO18_RDY, /* EXP_WAIT */

    GPIO0_GPIO, /* PWR_INT */
    GPIO104_GPIO, /* PWR_OFF */

    GPIO12_GPIO, /* touch irq */

    GPIO13_SSP2_TXD,
    GPIO14_SSP2_SFRM,
    MFP_CFG_OUT(GPIO19, AF1, DRIVE_LOW),/* SSP2_SYSCLK */
    GPIO22_SSP2_SCLK,

    GPIO81_SSP3_TXD,
    GPIO82_SSP3_RXD,
    GPIO83_SSP3_SFRM,
    GPIO84_SSP3_SCLK,

    GPIO20_GPIO, /* SDIO int */
    GPIO32_MMC_CLK,
    GPIO92_MMC_DAT_0,
    GPIO109_MMC_DAT_1,
    GPIO110_MMC_DAT_2,
    GPIO111_MMC_DAT_3,
    GPIO112_MMC_CMD,
    GPIO100_GPIO, /* SD CD */
    GPIO101_GPIO, /* SD WP */

    GPIO28_AC97_BITCLK,
    GPIO29_AC97_SDATA_IN_0,
    GPIO30_AC97_SDATA_OUT,
    GPIO31_AC97_SYNC,
    GPIO113_AC97_nRESET,

    GPIO34_FFUART_RXD,
    GPIO35_FFUART_CTS,
    GPIO36_FFUART_DCD,
    GPIO37_FFUART_DSR,
    GPIO38_FFUART_RI,
    GPIO39_FFUART_TXD,
    GPIO40_FFUART_DTR,
    GPIO41_FFUART_RTS,

    GPIO42_BTUART_RXD,
    GPIO43_BTUART_TXD,
    GPIO44_BTUART_CTS,
    GPIO45_BTUART_RTS,

    GPIO46_STUART_RXD,
    GPIO47_STUART_TXD,

    GPIO48_nPOE,
    GPIO49_nPWE,
    GPIO50_nPIOR,
    GPIO51_nPIOW,
    GPIO54_nPCE_2,
    GPIO55_nPREG,
    GPIO56_nPWAIT,
    GPIO57_nIOIS16, /* maybe unused */
    GPIO85_nPCE_1,
    GPIO98_GPIO, /* CF IRQ */
    GPIO99_GPIO, /* CF CD */
    GPIO103_GPIO, /* Reset */

    GPIO117_I2C_SCL,
    GPIO118_I2C_SDA,
};

static struct pxamci_platform_data csb726_mci = {
    .detect_delay_ms    = 500,
    .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
    /* FIXME setpower */
    .gpio_card_detect   = CSB726_GPIO_MMC_DETECT,
    .gpio_card_ro       = CSB726_GPIO_MMC_RO,
    .gpio_power     = -1,
};

static struct pxaohci_platform_data csb726_ohci_platform_data = {
    .port_mode  = PMM_NPS_MODE,
    .flags      = ENABLE_PORT1 | NO_OC_PROTECTION,
};

static struct mtd_partition csb726_flash_partitions[] = {
    {
        .name       = "Bootloader",
        .offset     = 0,
        .size       = CSB726_FLASH_uMON,
        .mask_flags = MTD_WRITEABLE  /* force read-only */
    },
    {
        .name       = "root",
        .offset     = MTDPART_OFS_APPEND,
        .size       = MTDPART_SIZ_FULL,
    }
};

static struct physmap_flash_data csb726_flash_data = {
    .width      = 2,
    .parts      = csb726_flash_partitions,
    .nr_parts   = ARRAY_SIZE(csb726_flash_partitions),
};

static struct resource csb726_flash_resources[] = {
    {
        .start          = PXA_CS0_PHYS,
        .end            = PXA_CS0_PHYS + CSB726_FLASH_SIZE - 1 ,
        .flags          = IORESOURCE_MEM,
    }
};

static struct platform_device csb726_flash = {
    .name           = "physmap-flash",
    .dev            = {
        .platform_data  = &csb726_flash_data,
    },
    .resource       = csb726_flash_resources,
    .num_resources  = ARRAY_SIZE(csb726_flash_resources),
};

static struct resource csb726_sm501_resources[] = {
    {
        .start          = PXA_CS4_PHYS,
        .end            = PXA_CS4_PHYS + SZ_8M - 1,
        .flags          = IORESOURCE_MEM,
        .name       = "sm501-localmem",
    },
    {
        .start          = PXA_CS4_PHYS + SZ_64M - SZ_2M,
        .end            = PXA_CS4_PHYS + SZ_64M - 1,
        .flags          = IORESOURCE_MEM,
        .name       = "sm501-regs",
    },
    {
        .start      = CSB726_IRQ_SM501,
        .end        = CSB726_IRQ_SM501,
        .flags      = IORESOURCE_IRQ,
    },
};

static struct sm501_initdata csb726_sm501_initdata = {
/*  .devices    = SM501_USE_USB_HOST, */
    .devices    = SM501_USE_USB_HOST | SM501_USE_UART0 | SM501_USE_UART1,
};

static struct sm501_platdata csb726_sm501_platdata = {
    .init       = &csb726_sm501_initdata,
};

static struct platform_device csb726_sm501 = {
    .name       = "sm501",
    .id     = 0,
    .num_resources  = ARRAY_SIZE(csb726_sm501_resources),
    .resource   = csb726_sm501_resources,
    .dev        = {
        .platform_data = &csb726_sm501_platdata,
    },
};

static struct resource csb726_lan_resources[] = {
    {
        .start  = PXA_CS3_PHYS,
        .end    = PXA_CS3_PHYS + SZ_64K - 1,
        .flags  = IORESOURCE_MEM,
    },
    {
        .start  = CSB726_IRQ_LAN,
        .end    = CSB726_IRQ_LAN,
        .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
    },
};

struct smsc911x_platform_config csb726_lan_config = {
    .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
    .irq_type   = SMSC911X_IRQ_TYPE_PUSH_PULL,
    .flags      = SMSC911X_USE_32BIT,
    .phy_interface  = PHY_INTERFACE_MODE_MII,
};


static struct platform_device csb726_lan = {
    .name       = "smsc911x",
    .id     = -1,
    .num_resources  = ARRAY_SIZE(csb726_lan_resources),
    .resource   = csb726_lan_resources,
    .dev        = {
        .platform_data  = &csb726_lan_config,
    },
};

static struct platform_device *devices[] __initdata = {
    &csb726_flash,
    &csb726_sm501,
    &csb726_lan,
};

static void __init csb726_init(void)
{
    pxa2xx_mfp_config(ARRAY_AND_SIZE(csb726_pin_config));
/*  __raw_writel(0x7ffc3ffc, MSC1); *//* LAN9215/EXP_CS */
/*  __raw_writel(0x06697ff4, MSC2); *//* none/SM501 */
    __raw_writel((__raw_readl(MSC2) & ~0xffff) | 0x7ff4, MSC2); /* SM501 */

    pxa_set_ffuart_info(NULL);
    pxa_set_btuart_info(NULL);
    pxa_set_stuart_info(NULL);
    pxa_set_i2c_info(NULL);
    pxa27x_set_i2c_power_info(NULL);
    pxa_set_mci_info(&csb726_mci);
    pxa_set_ohci_info(&csb726_ohci_platform_data);
    pxa_set_ac97_info(NULL);

    platform_add_devices(devices, ARRAY_SIZE(devices));
}

MACHINE_START(CSB726, "Cogent CSB726")
    .atag_offset    = 0x100,
    .map_io         = pxa27x_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq       = pxa27x_init_irq,
    .handle_irq       = pxa27x_handle_irq,
    .init_machine   = csb726_init,
    .timer          = &pxa_timer,
    .restart    = pxa_restart,
MACHINE_END