setup.c

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/*
 * KFR2R09 board support code
 *
 * Copyright (C) 2009 Magnus Damm
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/onenand.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
#include <linux/i2c.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/usb/r8a66597.h>
#include <linux/videodev2.h>
#include <linux/sh_intc.h>
#include <media/rj54n1cb0c.h>
#include <media/soc_camera.h>
#include <media/sh_mobile_ceu.h>
#include <video/sh_mobile_lcdc.h>
#include <asm/suspend.h>
#include <asm/clock.h>
#include <asm/machvec.h>
#include <asm/io.h>
#include <cpu/sh7724.h>
#include <mach/kfr2r09.h>

static struct mtd_partition kfr2r09_nor_flash_partitions[] =
{
    {
        .name = "boot",
        .offset = 0,
        .size = (4 * 1024 * 1024),
        .mask_flags = MTD_WRITEABLE,    /* Read-only */
    },
    {
        .name = "other",
        .offset = MTDPART_OFS_APPEND,
        .size = MTDPART_SIZ_FULL,
    },
};

static struct physmap_flash_data kfr2r09_nor_flash_data = {
    .width      = 2,
    .parts      = kfr2r09_nor_flash_partitions,
    .nr_parts   = ARRAY_SIZE(kfr2r09_nor_flash_partitions),
};

static struct resource kfr2r09_nor_flash_resources[] = {
    [0] = {
        .name       = "NOR Flash",
        .start      = 0x00000000,
        .end        = 0x03ffffff,
        .flags      = IORESOURCE_MEM,
    }
};

static struct platform_device kfr2r09_nor_flash_device = {
    .name       = "physmap-flash",
    .resource   = kfr2r09_nor_flash_resources,
    .num_resources  = ARRAY_SIZE(kfr2r09_nor_flash_resources),
    .dev        = {
        .platform_data = &kfr2r09_nor_flash_data,
    },
};

static struct resource kfr2r09_nand_flash_resources[] = {
    [0] = {
        .name       = "NAND Flash",
        .start      = 0x10000000,
        .end        = 0x1001ffff,
        .flags      = IORESOURCE_MEM,
    }
};

static struct platform_device kfr2r09_nand_flash_device = {
    .name       = "onenand-flash",
    .resource   = kfr2r09_nand_flash_resources,
    .num_resources  = ARRAY_SIZE(kfr2r09_nand_flash_resources),
};

static struct sh_keysc_info kfr2r09_sh_keysc_info = {
    .mode = SH_KEYSC_MODE_1, /* KEYOUT0->4, KEYIN0->4 */
    .scan_timing = 3,
    .delay = 10,
    .keycodes = {
        KEY_PHONE, KEY_CLEAR, KEY_MAIL, KEY_WWW, KEY_ENTER,
        KEY_1, KEY_2, KEY_3, 0, KEY_UP,
        KEY_4, KEY_5, KEY_6, 0, KEY_LEFT,
        KEY_7, KEY_8, KEY_9, KEY_PROG1, KEY_RIGHT,
        KEY_S, KEY_0, KEY_P, KEY_PROG2, KEY_DOWN,
        0, 0, 0, 0, 0
    },
};

static struct resource kfr2r09_sh_keysc_resources[] = {
    [0] = {
        .name   = "KEYSC",
        .start  = 0x044b0000,
        .end    = 0x044b000f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xbe0),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device kfr2r09_sh_keysc_device = {
    .name           = "sh_keysc",
    .id             = 0, /* "keysc0" clock */
    .num_resources  = ARRAY_SIZE(kfr2r09_sh_keysc_resources),
    .resource       = kfr2r09_sh_keysc_resources,
    .dev    = {
        .platform_data  = &kfr2r09_sh_keysc_info,
    },
};

static const struct fb_videomode kfr2r09_lcdc_modes[] = {
    {
        .name = "TX07D34VM0AAA",
        .xres = 240,
        .yres = 400,
        .left_margin = 0,
        .right_margin = 16,
        .hsync_len = 8,
        .upper_margin = 0,
        .lower_margin = 1,
        .vsync_len = 1,
        .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
    },
};

static struct sh_mobile_lcdc_info kfr2r09_sh_lcdc_info = {
    .clock_source = LCDC_CLK_BUS,
    .ch[0] = {
        .chan = LCDC_CHAN_MAINLCD,
        .fourcc = V4L2_PIX_FMT_RGB565,
        .interface_type = SYS18,
        .clock_divider = 6,
        .flags = LCDC_FLAGS_DWPOL,
        .lcd_modes = kfr2r09_lcdc_modes,
        .num_modes = ARRAY_SIZE(kfr2r09_lcdc_modes),
        .panel_cfg = {
            .width = 35,
            .height = 58,
            .setup_sys = kfr2r09_lcd_setup,
            .start_transfer = kfr2r09_lcd_start,
            .display_on = kfr2r09_lcd_on,
            .display_off = kfr2r09_lcd_off,
        },
        .sys_bus_cfg = {
            .ldmt2r = 0x07010904,
            .ldmt3r = 0x14012914,
            /* set 1s delay to encourage fsync() */
            .deferred_io_msec = 1000,
        },
    }
};

static struct resource kfr2r09_sh_lcdc_resources[] = {
    [0] = {
        .name   = "LCDC",
        .start  = 0xfe940000, /* P4-only space */
        .end    = 0xfe942fff,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xf40),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device kfr2r09_sh_lcdc_device = {
    .name       = "sh_mobile_lcdc_fb",
    .num_resources  = ARRAY_SIZE(kfr2r09_sh_lcdc_resources),
    .resource   = kfr2r09_sh_lcdc_resources,
    .dev    = {
        .platform_data  = &kfr2r09_sh_lcdc_info,
    },
};

static struct r8a66597_platdata kfr2r09_usb0_gadget_data = {
    .on_chip = 1,
};

static struct resource kfr2r09_usb0_gadget_resources[] = {
    [0] = {
        .start  = 0x04d80000,
        .end    = 0x04d80123,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xa20),
        .end    = evt2irq(0xa20),
        .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
    },
};

static struct platform_device kfr2r09_usb0_gadget_device = {
    .name       = "r8a66597_udc",
    .id     = 0,
    .dev = {
        .dma_mask       = NULL,         /*  not use dma */
        .coherent_dma_mask  = 0xffffffff,
        .platform_data  = &kfr2r09_usb0_gadget_data,
    },
    .num_resources  = ARRAY_SIZE(kfr2r09_usb0_gadget_resources),
    .resource   = kfr2r09_usb0_gadget_resources,
};

static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
    .flags = SH_CEU_FLAG_USE_8BIT_BUS,
};

static struct resource kfr2r09_ceu_resources[] = {
    [0] = {
        .name   = "CEU",
        .start  = 0xfe910000,
        .end    = 0xfe91009f,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0x880),
        .end    = evt2irq(0x880),
        .flags  = IORESOURCE_IRQ,
    },
    [2] = {
        /* place holder for contiguous memory */
    },
};

static struct platform_device kfr2r09_ceu_device = {
    .name       = "sh_mobile_ceu",
    .id             = 0, /* "ceu0" clock */
    .num_resources  = ARRAY_SIZE(kfr2r09_ceu_resources),
    .resource   = kfr2r09_ceu_resources,
    .dev    = {
        .platform_data  = &sh_mobile_ceu_info,
    },
};

static struct i2c_board_info kfr2r09_i2c_camera = {
    I2C_BOARD_INFO("rj54n1cb0c", 0x50),
};

static struct clk *camera_clk;

/* set VIO_CKO clock to 25MHz */
#define CEU_MCLK_FREQ 25000000

#define DRVCRB 0xA405018C
static int camera_power(struct device *dev, int mode)
{
    int ret;

    if (mode) {
        long rate;

        camera_clk = clk_get(NULL, "video_clk");
        if (IS_ERR(camera_clk))
            return PTR_ERR(camera_clk);

        rate = clk_round_rate(camera_clk, CEU_MCLK_FREQ);
        ret = clk_set_rate(camera_clk, rate);
        if (ret < 0)
            goto eclkrate;

        /* set DRVCRB
         *
         * use 1.8 V for VccQ_VIO
         * use 2.85V for VccQ_SR
         */
        __raw_writew((__raw_readw(DRVCRB) & ~0x0003) | 0x0001, DRVCRB);

        /* reset clear */
        ret = gpio_request(GPIO_PTB4, NULL);
        if (ret < 0)
            goto eptb4;
        ret = gpio_request(GPIO_PTB7, NULL);
        if (ret < 0)
            goto eptb7;

        ret = gpio_direction_output(GPIO_PTB4, 1);
        if (!ret)
            ret = gpio_direction_output(GPIO_PTB7, 1);
        if (ret < 0)
            goto egpioout;
        msleep(1);

        ret = clk_enable(camera_clk);   /* start VIO_CKO */
        if (ret < 0)
            goto eclkon;

        return 0;
    }

    ret = 0;

    clk_disable(camera_clk);
eclkon:
    gpio_set_value(GPIO_PTB7, 0);
egpioout:
    gpio_set_value(GPIO_PTB4, 0);
    gpio_free(GPIO_PTB7);
eptb7:
    gpio_free(GPIO_PTB4);
eptb4:
eclkrate:
    clk_put(camera_clk);
    return ret;
}

static struct rj54n1_pdata rj54n1_priv = {
    .mclk_freq  = CEU_MCLK_FREQ,
    .ioctl_high = false,
};

static struct soc_camera_link rj54n1_link = {
    .power      = camera_power,
    .board_info = &kfr2r09_i2c_camera,
    .i2c_adapter_id = 1,
    .priv       = &rj54n1_priv,
};

static struct platform_device kfr2r09_camera = {
    .name   = "soc-camera-pdrv",
    .id = 0,
    .dev    = {
        .platform_data = &rj54n1_link,
    },
};

/* Fixed 3.3V regulator to be used by SDHI0 */
static struct regulator_consumer_supply fixed3v3_power_consumers[] =
{
    REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
    REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
};

static struct resource kfr2r09_sh_sdhi0_resources[] = {
    [0] = {
        .name   = "SDHI0",
        .start  = 0x04ce0000,
        .end    = 0x04ce00ff,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = evt2irq(0xe80),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct sh_mobile_sdhi_info sh7724_sdhi0_data = {
    .dma_slave_tx   = SHDMA_SLAVE_SDHI0_TX,
    .dma_slave_rx   = SHDMA_SLAVE_SDHI0_RX,
    .tmio_flags = TMIO_MMC_WRPROTECT_DISABLE,
    .tmio_caps      = MMC_CAP_SDIO_IRQ,
};

static struct platform_device kfr2r09_sh_sdhi0_device = {
    .name           = "sh_mobile_sdhi",
    .num_resources  = ARRAY_SIZE(kfr2r09_sh_sdhi0_resources),
    .resource       = kfr2r09_sh_sdhi0_resources,
    .dev = {
        .platform_data  = &sh7724_sdhi0_data,
    },
};

static struct platform_device *kfr2r09_devices[] __initdata = {
    &kfr2r09_nor_flash_device,
    &kfr2r09_nand_flash_device,
    &kfr2r09_sh_keysc_device,
    &kfr2r09_sh_lcdc_device,
    &kfr2r09_ceu_device,
    &kfr2r09_camera,
    &kfr2r09_sh_sdhi0_device,
};

#define BSC_CS0BCR 0xfec10004
#define BSC_CS0WCR 0xfec10024
#define BSC_CS4BCR 0xfec10010
#define BSC_CS4WCR 0xfec10030
#define PORT_MSELCRB 0xa4050182

#ifdef CONFIG_I2C
static int kfr2r09_usb0_gadget_i2c_setup(void)
{
    struct i2c_adapter *a;
    struct i2c_msg msg;
    unsigned char buf[2];
    int ret;

    a = i2c_get_adapter(0);
    if (!a)
        return -ENODEV;

    /* set bit 1 (the second bit) of chip at 0x09, register 0x13 */
    buf[0] = 0x13;
    msg.addr = 0x09;
    msg.buf = buf;
    msg.len = 1;
    msg.flags = 0;
    ret = i2c_transfer(a, &msg, 1);
    if (ret != 1)
        return -ENODEV;

    buf[0] = 0;
    msg.addr = 0x09;
    msg.buf = buf;
    msg.len = 1;
    msg.flags = I2C_M_RD;
    ret = i2c_transfer(a, &msg, 1);
    if (ret != 1)
        return -ENODEV;

    buf[1] = buf[0] | (1 << 1);
    buf[0] = 0x13;
    msg.addr = 0x09;
    msg.buf = buf;
    msg.len = 2;
    msg.flags = 0;
    ret = i2c_transfer(a, &msg, 1);
    if (ret != 1)
        return -ENODEV;

    return 0;
}

static int kfr2r09_serial_i2c_setup(void)
{
    struct i2c_adapter *a;
    struct i2c_msg msg;
    unsigned char buf[2];
    int ret;

    a = i2c_get_adapter(0);
    if (!a)
        return -ENODEV;

    /* set bit 6 (the 7th bit) of chip at 0x09, register 0x13 */
    buf[0] = 0x13;
    msg.addr = 0x09;
    msg.buf = buf;
    msg.len = 1;
    msg.flags = 0;
    ret = i2c_transfer(a, &msg, 1);
    if (ret != 1)
        return -ENODEV;

    buf[0] = 0;
    msg.addr = 0x09;
    msg.buf = buf;
    msg.len = 1;
    msg.flags = I2C_M_RD;
    ret = i2c_transfer(a, &msg, 1);
    if (ret != 1)
        return -ENODEV;

    buf[1] = buf[0] | (1 << 6);
    buf[0] = 0x13;
    msg.addr = 0x09;
    msg.buf = buf;
    msg.len = 2;
    msg.flags = 0;
    ret = i2c_transfer(a, &msg, 1);
    if (ret != 1)
        return -ENODEV;

    return 0;
}
#else
static int kfr2r09_usb0_gadget_i2c_setup(void)
{
    return -ENODEV;
}

static int kfr2r09_serial_i2c_setup(void)
{
    return -ENODEV;
}
#endif

static int kfr2r09_usb0_gadget_setup(void)
{
    int plugged_in;

    gpio_request(GPIO_PTN4, NULL); /* USB_DET */
    gpio_direction_input(GPIO_PTN4);
    plugged_in = gpio_get_value(GPIO_PTN4);
    if (!plugged_in)
        return -ENODEV; /* no cable plugged in */

    if (kfr2r09_usb0_gadget_i2c_setup() != 0)
        return -ENODEV; /* unable to configure using i2c */

    __raw_writew((__raw_readw(PORT_MSELCRB) & ~0xc000) | 0x8000, PORT_MSELCRB);
    gpio_request(GPIO_FN_PDSTATUS, NULL); /* R-standby disables USB clock */
    gpio_request(GPIO_PTV6, NULL); /* USBCLK_ON */
    gpio_direction_output(GPIO_PTV6, 1); /* USBCLK_ON = H */
    msleep(20); /* wait 20ms to let the clock settle */
    clk_enable(clk_get(NULL, "usb0"));
    __raw_writew(0x0600, 0xa40501d4);

    return 0;
}

extern char kfr2r09_sdram_enter_start;
extern char kfr2r09_sdram_enter_end;
extern char kfr2r09_sdram_leave_start;
extern char kfr2r09_sdram_leave_end;

static int __init kfr2r09_devices_setup(void)
{
    /* register board specific self-refresh code */
    sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF |
                    SUSP_SH_RSTANDBY,
                    &kfr2r09_sdram_enter_start,
                    &kfr2r09_sdram_enter_end,
                    &kfr2r09_sdram_leave_start,
                    &kfr2r09_sdram_leave_end);

    regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
                     ARRAY_SIZE(fixed3v3_power_consumers), 3300000);

    /* enable SCIF1 serial port for YC401 console support */
    gpio_request(GPIO_FN_SCIF1_RXD, NULL);
    gpio_request(GPIO_FN_SCIF1_TXD, NULL);
    kfr2r09_serial_i2c_setup(); /* ECONTMSK(bit6=L10ONEN) set 1 */
    gpio_request(GPIO_PTG3, NULL); /* HPON_ON */
    gpio_direction_output(GPIO_PTG3, 1); /* HPON_ON = H */

    /* setup NOR flash at CS0 */
    __raw_writel(0x36db0400, BSC_CS0BCR);
    __raw_writel(0x00000500, BSC_CS0WCR);

    /* setup NAND flash at CS4 */
    __raw_writel(0x36db0400, BSC_CS4BCR);
    __raw_writel(0x00000500, BSC_CS4WCR);

    /* setup KEYSC pins */
    gpio_request(GPIO_FN_KEYOUT0, NULL);
    gpio_request(GPIO_FN_KEYOUT1, NULL);
    gpio_request(GPIO_FN_KEYOUT2, NULL);
    gpio_request(GPIO_FN_KEYOUT3, NULL);
    gpio_request(GPIO_FN_KEYOUT4_IN6, NULL);
    gpio_request(GPIO_FN_KEYIN0, NULL);
    gpio_request(GPIO_FN_KEYIN1, NULL);
    gpio_request(GPIO_FN_KEYIN2, NULL);
    gpio_request(GPIO_FN_KEYIN3, NULL);
    gpio_request(GPIO_FN_KEYIN4, NULL);
    gpio_request(GPIO_FN_KEYOUT5_IN5, NULL);

    /* setup LCDC pins for SYS panel */
    gpio_request(GPIO_FN_LCDD17, NULL);
    gpio_request(GPIO_FN_LCDD16, NULL);
    gpio_request(GPIO_FN_LCDD15, NULL);
    gpio_request(GPIO_FN_LCDD14, NULL);
    gpio_request(GPIO_FN_LCDD13, NULL);
    gpio_request(GPIO_FN_LCDD12, NULL);
    gpio_request(GPIO_FN_LCDD11, NULL);
    gpio_request(GPIO_FN_LCDD10, NULL);
    gpio_request(GPIO_FN_LCDD9, NULL);
    gpio_request(GPIO_FN_LCDD8, NULL);
    gpio_request(GPIO_FN_LCDD7, NULL);
    gpio_request(GPIO_FN_LCDD6, NULL);
    gpio_request(GPIO_FN_LCDD5, NULL);
    gpio_request(GPIO_FN_LCDD4, NULL);
    gpio_request(GPIO_FN_LCDD3, NULL);
    gpio_request(GPIO_FN_LCDD2, NULL);
    gpio_request(GPIO_FN_LCDD1, NULL);
    gpio_request(GPIO_FN_LCDD0, NULL);
    gpio_request(GPIO_FN_LCDRS, NULL); /* LCD_RS */
    gpio_request(GPIO_FN_LCDCS, NULL); /* LCD_CS/ */
    gpio_request(GPIO_FN_LCDRD, NULL); /* LCD_RD/ */
    gpio_request(GPIO_FN_LCDWR, NULL); /* LCD_WR/ */
    gpio_request(GPIO_FN_LCDVSYN, NULL); /* LCD_VSYNC */
    gpio_request(GPIO_PTE4, NULL); /* LCD_RST/ */
    gpio_direction_output(GPIO_PTE4, 1);
    gpio_request(GPIO_PTF4, NULL); /* PROTECT/ */
    gpio_direction_output(GPIO_PTF4, 1);
    gpio_request(GPIO_PTU0, NULL); /* LEDSTDBY/ */
    gpio_direction_output(GPIO_PTU0, 1);

    /* setup USB function */
    if (kfr2r09_usb0_gadget_setup() == 0)
        platform_device_register(&kfr2r09_usb0_gadget_device);

    /* CEU */
    gpio_request(GPIO_FN_VIO_CKO, NULL);
    gpio_request(GPIO_FN_VIO0_CLK, NULL);
    gpio_request(GPIO_FN_VIO0_VD, NULL);
    gpio_request(GPIO_FN_VIO0_HD, NULL);
    gpio_request(GPIO_FN_VIO0_FLD, NULL);
    gpio_request(GPIO_FN_VIO0_D7, NULL);
    gpio_request(GPIO_FN_VIO0_D6, NULL);
    gpio_request(GPIO_FN_VIO0_D5, NULL);
    gpio_request(GPIO_FN_VIO0_D4, NULL);
    gpio_request(GPIO_FN_VIO0_D3, NULL);
    gpio_request(GPIO_FN_VIO0_D2, NULL);
    gpio_request(GPIO_FN_VIO0_D1, NULL);
    gpio_request(GPIO_FN_VIO0_D0, NULL);

    platform_resource_setup_memory(&kfr2r09_ceu_device, "ceu", 4 << 20);

    /* SDHI0 connected to yc304 */
    gpio_request(GPIO_FN_SDHI0CD, NULL);
    gpio_request(GPIO_FN_SDHI0D3, NULL);
    gpio_request(GPIO_FN_SDHI0D2, NULL);
    gpio_request(GPIO_FN_SDHI0D1, NULL);
    gpio_request(GPIO_FN_SDHI0D0, NULL);
    gpio_request(GPIO_FN_SDHI0CMD, NULL);
    gpio_request(GPIO_FN_SDHI0CLK, NULL);

    return platform_add_devices(kfr2r09_devices,
                    ARRAY_SIZE(kfr2r09_devices));
}
device_initcall(kfr2r09_devices_setup);

/* Return the board specific boot mode pin configuration */
static int kfr2r09_mode_pins(void)
{
    /* MD0=1, MD1=1, MD2=0: Clock Mode 3
     * MD3=0: 16-bit Area0 Bus Width
     * MD5=1: Little Endian
     * MD8=1: Test Mode Disabled
     */
    return MODE_PIN0 | MODE_PIN1 | MODE_PIN5 | MODE_PIN8;
}

/*
 * The Machine Vector
 */
static struct sh_machine_vector mv_kfr2r09 __initmv = {
    .mv_name        = "kfr2r09",
    .mv_mode_pins       = kfr2r09_mode_pins,
};