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nxeb500hmi.c

/*
 * arch/arm/mach-netx/nxeb500hmi.c
 *
 * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, 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 <mach/netx-regs.h>
#include <mach/eth.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")
      .boot_params      = 0x80000100,
      .map_io           = netx_map_io,
      .init_irq   = netx_init_irq,
      .timer            = &netx_timer,
      .init_machine     = nxeb500hmi_init,
MACHINE_END

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