nxeb500hmi.c

Go to the documentation of this file.

/*
 * arch/arm/mach-netx/nxeb500hmi.c
 *
 * Copyright (c) 2005 Sascha Hauer <[email protected]>, Pengutronix
 *
 * 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.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/mtd/plat-ram.h>
#include <linux/platform_device.h>
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/hardware/vic.h>
#include <mach/netx-regs.h>
#include <linux/platform_data/eth-netx.h>

#include "generic.h"
#include "fb.h"

static struct clcd_panel qvga = {
    .mode       = {
        .name       = "QVGA",
        .refresh    = 60,
        .xres       = 240,
        .yres       = 320,
        .pixclock   = 187617,
        .left_margin    = 6,
        .right_margin   = 26,
        .upper_margin   = 0,
        .lower_margin   = 6,
        .hsync_len  = 6,
        .vsync_len  = 1,
        .sync       = 0,
        .vmode      = FB_VMODE_NONINTERLACED,
    },
    .width      = -1,
    .height     = -1,
    .tim2       =  16,
    .cntl       = CNTL_LCDTFT | CNTL_BGR,
    .bpp        = 16,
    .grayscale  = 0,
};

static inline int nxeb500hmi_check(struct clcd_fb *fb, struct fb_var_screeninfo *var)
{
    var->green.length = 5;
    var->green.msb_right = 0;

    return clcdfb_check(fb, var);
}

static int nxeb500hmi_clcd_setup(struct clcd_fb *fb)
{
    unsigned int val;

    fb->fb.var.green.length = 5;
    fb->fb.var.green.msb_right = 0;

    /* enable asic control */
    val = readl(NETX_SYSTEM_IOC_ACCESS_KEY);
    writel(val, NETX_SYSTEM_IOC_ACCESS_KEY);

    writel(3, NETX_SYSTEM_IOC_CR);

    /* GPIO 14 is used for display enable on newer boards */
    writel(9, NETX_GPIO_CFG(14));

    val = readl(NETX_PIO_OUTPIO);
    writel(val | 1, NETX_PIO_OUTPIO);

    val = readl(NETX_PIO_OEPIO);
    writel(val | 1, NETX_PIO_OEPIO);
    return netx_clcd_setup(fb);
}

static struct clcd_board clcd_data = {
    .name       = "netX",
    .check      = nxeb500hmi_check,
    .decode     = clcdfb_decode,
    .enable     = netx_clcd_enable,
    .setup      = nxeb500hmi_clcd_setup,
    .mmap       = netx_clcd_mmap,
    .remove     = netx_clcd_remove,
};

static struct netxeth_platform_data eth0_platform_data = {
    .xcno = 0,
};

static struct platform_device netx_eth0_device = {
    .name       = "netx-eth",
    .id     = 0,
    .num_resources  = 0,
    .resource   = NULL,
    .dev = {
        .platform_data = &eth0_platform_data,
    }
};

static struct netxeth_platform_data eth1_platform_data = {
    .xcno = 1,
};

static struct platform_device netx_eth1_device = {
    .name       = "netx-eth",
    .id     = 1,
    .num_resources  = 0,
    .resource   = NULL,
    .dev = {
        .platform_data = &eth1_platform_data,
    }
};

static struct resource netx_cf_resources[] = {
    [0] = {
        .start  = 0x20000000,
        .end    = 0x25ffffff,
        .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
    },
};

static struct platform_device netx_cf_device = {
    .name       = "netx-cf",
    .id     = 0,
    .resource   = netx_cf_resources,
    .num_resources  = ARRAY_SIZE(netx_cf_resources),
};

static struct resource netx_uart0_resources[] = {
    [0] = {
        .start  = 0x00100A00,
        .end    = 0x00100A3F,
        .flags  = IORESOURCE_MEM,
    },
    [1] = {
        .start  = (NETX_IRQ_UART0),
        .end    = (NETX_IRQ_UART0),
        .flags  = IORESOURCE_IRQ,
    },
};

static struct platform_device netx_uart0_device = {
    .name       = "netx-uart",
    .id     = 0,
    .num_resources  = ARRAY_SIZE(netx_uart0_resources),
    .resource   = netx_uart0_resources,
};

static struct platform_device *devices[] __initdata = {
    &netx_eth0_device,
    &netx_eth1_device,
    &netx_cf_device,
    &netx_uart0_device,
};

static void __init nxeb500hmi_init(void)
{
    netx_fb_init(&clcd_data, &qvga);
    platform_add_devices(devices, ARRAY_SIZE(devices));
}

MACHINE_START(NXEB500HMI, "Hilscher nxeb500hmi")
    .atag_offset    = 0x100,
    .map_io     = netx_map_io,
    .init_irq   = netx_init_irq,
    .handle_irq = vic_handle_irq,
    .timer      = &netx_timer,
    .init_machine   = nxeb500hmi_init,
    .restart    = netx_restart,
MACHINE_END