board-g3evm.c

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/*
 * G3EVM board support
 *
 * Copyright (C) 2010  Magnus Damm
 * Copyright (C) 2008  Yoshihiro Shimoda
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/sh_flctl.h>
#include <linux/usb/r8a66597.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/dma-mapping.h>
#include <mach/irqs.h>
#include <mach/sh7367.h>
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>

/*
 * IrDA
 *
 * S67: 5bit : ON  power
 *    : 6bit : ON  remote control
 *             OFF IrDA
 */

static struct mtd_partition nor_flash_partitions[] = {
    {
        .name       = "loader",
        .offset     = 0x00000000,
        .size       = 512 * 1024,
    },
    {
        .name       = "bootenv",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 512 * 1024,
    },
    {
        .name       = "kernel_ro",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 8 * 1024 * 1024,
        .mask_flags = MTD_WRITEABLE,
    },
    {
        .name       = "kernel",
        .offset     = MTDPART_OFS_APPEND,
        .size       = 8 * 1024 * 1024,
    },
    {
        .name       = "data",
        .offset     = MTDPART_OFS_APPEND,
        .size       = MTDPART_SIZ_FULL,
    },
};

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

static struct resource nor_flash_resources[] = {
    [0] = {
        .start  = 0x00000000,
        .end    = 0x08000000 - 1,
        .flags  = IORESOURCE_MEM,
    }
};

static struct platform_device nor_flash_device = {
    .name       = "physmap-flash",
    .dev        = {
        .platform_data  = &nor_flash_data,
    },
    .num_resources  = ARRAY_SIZE(nor_flash_resources),
    .resource   = nor_flash_resources,
};

/* USBHS */
static void usb_host_port_power(int port, int power)
{
    if (!power) /* only power-on supported for now */
        return;

    /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
    __raw_writew(__raw_readw(IOMEM(0xe6890008)) | 0x600, IOMEM(0xe6890008));
}

static struct r8a66597_platdata usb_host_data = {
    .on_chip = 1,
    .port_power = usb_host_port_power,
};

static struct resource usb_host_resources[] = {
    [0] = {
        .name   = "USBHS",
        .start  = 0xe6890000,
        .end    = 0xe68900e5,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xa20), /* USBHS_USHI0 */
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device usb_host_device = {
    .name       = "r8a66597_hcd",
    .id     = 0,
    .dev = {
        .platform_data      = &usb_host_data,
        .dma_mask       = NULL,
        .coherent_dma_mask  = 0xffffffff,
    },
    .num_resources  = ARRAY_SIZE(usb_host_resources),
    .resource   = usb_host_resources,
};

/* KEYSC */
static struct sh_keysc_info keysc_info = {
    .mode       = SH_KEYSC_MODE_5,
    .scan_timing    = 3,
    .delay      = 100,
    .keycodes = {
        KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F, KEY_G,
        KEY_H, KEY_I, KEY_J, KEY_K, KEY_L, KEY_M, KEY_N,
        KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U,
        KEY_V, KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP,
        KEY_WAKEUP, KEY_COFFEE, KEY_0, KEY_1, KEY_2, KEY_3, KEY_4,
        KEY_5, KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
    },
};

static struct resource keysc_resources[] = {
    [0] = {
        .name   = "KEYSC",
        .start  = 0xe61b0000,
        .end    = 0xe61b000f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xbe0), /* KEYSC_KEY */
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device keysc_device = {
    .name           = "sh_keysc",
    .num_resources  = ARRAY_SIZE(keysc_resources),
    .resource       = keysc_resources,
    .dev    = {
        .platform_data  = &keysc_info,
    },
};

static struct mtd_partition nand_partition_info[] = {
    {
        .name   = "system",
        .offset = 0,
        .size   = 64 * 1024 * 1024,
    },
    {
        .name   = "userdata",
        .offset = MTDPART_OFS_APPEND,
        .size   = 128 * 1024 * 1024,
    },
    {
        .name   = "cache",
        .offset = MTDPART_OFS_APPEND,
        .size   = 64 * 1024 * 1024,
    },
};

static struct resource nand_flash_resources[] = {
    [0] = {
        .start  = 0xe6a30000,
        .end    = 0xe6a3009b,
        .flags  = IORESOURCE_MEM,
    }
};

static struct sh_flctl_platform_data nand_flash_data = {
    .parts      = nand_partition_info,
    .nr_parts   = ARRAY_SIZE(nand_partition_info),
    .flcmncr_val    = QTSEL_E | FCKSEL_E | TYPESEL_SET | NANWF_E
            | SHBUSSEL | SEL_16BIT,
};

static struct platform_device nand_flash_device = {
    .name       = "sh_flctl",
    .resource   = nand_flash_resources,
    .num_resources  = ARRAY_SIZE(nand_flash_resources),
    .dev        = {
        .platform_data = &nand_flash_data,
    },
};

static struct resource irda_resources[] = {
    [0] = {
        .start  = 0xE6D00000,
        .end    = 0xE6D01FD4 - 1,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0x480), /* IRDA */
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device irda_device = {
    .name       = "sh_irda",
    .id     = -1,
    .resource   = irda_resources,
    .num_resources  = ARRAY_SIZE(irda_resources),
};

static struct platform_device *g3evm_devices[] __initdata = {
    &nor_flash_device,
    &usb_host_device,
    &keysc_device,
    &nand_flash_device,
    &irda_device,
};

static void __init g3evm_init(void)
{
    sh7367_pinmux_init();

    /* Lit DS4 LED */
    gpio_request(GPIO_PORT22, NULL);
    gpio_direction_output(GPIO_PORT22, 1);
    gpio_export(GPIO_PORT22, 0);

    /* Lit DS8 LED */
    gpio_request(GPIO_PORT23, NULL);
    gpio_direction_output(GPIO_PORT23, 1);
    gpio_export(GPIO_PORT23, 0);

    /* Lit DS3 LED */
    gpio_request(GPIO_PORT24, NULL);
    gpio_direction_output(GPIO_PORT24, 1);
    gpio_export(GPIO_PORT24, 0);

    /* SCIFA1 */
    gpio_request(GPIO_FN_SCIFA1_TXD, NULL);
    gpio_request(GPIO_FN_SCIFA1_RXD, NULL);
    gpio_request(GPIO_FN_SCIFA1_CTS, NULL);
    gpio_request(GPIO_FN_SCIFA1_RTS, NULL);

    /* USBHS */
    gpio_request(GPIO_FN_VBUS0, NULL);
    gpio_request(GPIO_FN_PWEN, NULL);
    gpio_request(GPIO_FN_OVCN, NULL);
    gpio_request(GPIO_FN_OVCN2, NULL);
    gpio_request(GPIO_FN_EXTLP, NULL);
    gpio_request(GPIO_FN_IDIN, NULL);

    /* setup USB phy */
    __raw_writew(0x0300, IOMEM(0xe605810a));    /* USBCR1 */
    __raw_writew(0x00e0, IOMEM(0xe60581c0));    /* CPFCH */
    __raw_writew(0x6010, IOMEM(0xe60581c6));    /* CGPOSR */
    __raw_writew(0x8a0a, IOMEM(0xe605810c));    /* USBCR2 */

    /* KEYSC @ CN7 */
    gpio_request(GPIO_FN_PORT42_KEYOUT0, NULL);
    gpio_request(GPIO_FN_PORT43_KEYOUT1, NULL);
    gpio_request(GPIO_FN_PORT44_KEYOUT2, NULL);
    gpio_request(GPIO_FN_PORT45_KEYOUT3, NULL);
    gpio_request(GPIO_FN_PORT46_KEYOUT4, NULL);
    gpio_request(GPIO_FN_PORT47_KEYOUT5, NULL);
    gpio_request(GPIO_FN_PORT48_KEYIN0_PU, NULL);
    gpio_request(GPIO_FN_PORT49_KEYIN1_PU, NULL);
    gpio_request(GPIO_FN_PORT50_KEYIN2_PU, NULL);
    gpio_request(GPIO_FN_PORT55_KEYIN3_PU, NULL);
    gpio_request(GPIO_FN_PORT56_KEYIN4_PU, NULL);
    gpio_request(GPIO_FN_PORT57_KEYIN5_PU, NULL);
    gpio_request(GPIO_FN_PORT58_KEYIN6_PU, NULL);

    /* FLCTL */
    gpio_request(GPIO_FN_FCE0, NULL);
    gpio_request(GPIO_FN_D0_ED0_NAF0, NULL);
    gpio_request(GPIO_FN_D1_ED1_NAF1, NULL);
    gpio_request(GPIO_FN_D2_ED2_NAF2, NULL);
    gpio_request(GPIO_FN_D3_ED3_NAF3, NULL);
    gpio_request(GPIO_FN_D4_ED4_NAF4, NULL);
    gpio_request(GPIO_FN_D5_ED5_NAF5, NULL);
    gpio_request(GPIO_FN_D6_ED6_NAF6, NULL);
    gpio_request(GPIO_FN_D7_ED7_NAF7, NULL);
    gpio_request(GPIO_FN_D8_ED8_NAF8, NULL);
    gpio_request(GPIO_FN_D9_ED9_NAF9, NULL);
    gpio_request(GPIO_FN_D10_ED10_NAF10, NULL);
    gpio_request(GPIO_FN_D11_ED11_NAF11, NULL);
    gpio_request(GPIO_FN_D12_ED12_NAF12, NULL);
    gpio_request(GPIO_FN_D13_ED13_NAF13, NULL);
    gpio_request(GPIO_FN_D14_ED14_NAF14, NULL);
    gpio_request(GPIO_FN_D15_ED15_NAF15, NULL);
    gpio_request(GPIO_FN_WE0_XWR0_FWE, NULL);
    gpio_request(GPIO_FN_FRB, NULL);
    /* FOE, FCDE, FSC on dedicated pins */
    __raw_writel(__raw_readl(IOMEM(0xe6158048)) & ~(1 << 15), IOMEM(0xe6158048));

    /* IrDA */
    gpio_request(GPIO_FN_IRDA_OUT, NULL);
    gpio_request(GPIO_FN_IRDA_IN, NULL);
    gpio_request(GPIO_FN_IRDA_FIRSEL, NULL);

    sh7367_add_standard_devices();

    platform_add_devices(g3evm_devices, ARRAY_SIZE(g3evm_devices));
}

MACHINE_START(G3EVM, "g3evm")
    .map_io     = sh7367_map_io,
    .init_early = sh7367_add_early_devices,
    .init_irq   = sh7367_init_irq,
    .handle_irq = shmobile_handle_irq_intc,
    .init_machine   = g3evm_init,
    .init_late  = shmobile_init_late,
    .timer      = &shmobile_timer,
MACHINE_END