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csb726.c

/*
 *  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 <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/csb726.h>
#include <mach/mfp-pxa27x.h>
#include <plat/i2c.h>
#include <mach/mmc.h>
#include <mach/ohci.h>
#include <mach/pxa2xx-regs.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")
      .boot_params      = 0xa0000100,
      .map_io         = pxa27x_map_io,
      .init_irq       = pxa27x_init_irq,
      .init_machine   = csb726_init,
      .timer          = &pxa_timer,
MACHINE_END

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