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zylonite.c

/*
 * linux/arch/arm/mach-pxa/zylonite.c
 *
 * Support for the PXA3xx Development Platform (aka Zylonite)
 *
 * Copyright (C) 2006 Marvell International Ltd.
 *
 * 2007-09-04: eric miao <eric.miao@marvell.com>
 *             rewrite to align with latest kernel
 *
 * 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/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/platform_device.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/hardware.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/zylonite.h>

#include "generic.h"

int gpio_backlight;
int gpio_eth_irq;

int lcd_id;
int lcd_orientation;

static struct resource smc91x_resources[] = {
      [0] = {
            .start      = ZYLONITE_ETH_PHYS + 0x300,
            .end  = ZYLONITE_ETH_PHYS + 0xfffff,
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = -1, /* for run-time assignment */
            .end  = -1,
            .flags      = IORESOURCE_IRQ,
      }
};

static struct platform_device smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(smc91x_resources),
      .resource   = smc91x_resources,
};

#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULES)
static void zylonite_backlight_power(int on)
{
      gpio_set_value(gpio_backlight, on);
}

static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
      .pixclock         = 110000,
      .xres             = 240,
      .yres             = 320,
      .bpp              = 16,
      .hsync_len        = 4,
      .left_margin            = 6,
      .right_margin           = 4,
      .vsync_len        = 2,
      .upper_margin           = 2,
      .lower_margin           = 3,
      .sync             = FB_SYNC_VERT_HIGH_ACT,
};

static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
      .pixclock         = 50000,
      .xres             = 640,
      .yres             = 480,
      .bpp              = 16,
      .hsync_len        = 1,
      .left_margin            = 0x9f,
      .right_margin           = 1,
      .vsync_len        = 44,
      .upper_margin           = 0,
      .lower_margin           = 0,
      .sync             = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
};

static struct pxafb_mach_info zylonite_toshiba_lcd_info = {
      .num_modes        = 1,
      .lccr0                  = LCCR0_Act,
      .lccr3                  = LCCR3_PCP,
      .pxafb_backlight_power  = zylonite_backlight_power,
};

static struct pxafb_mode_info sharp_ls037_modes[] = {
      [0] = {
            .pixclock   = 158000,
            .xres       = 240,
            .yres       = 320,
            .bpp        = 16,
            .hsync_len  = 4,
            .left_margin      = 39,
            .right_margin     = 39,
            .vsync_len  = 1,
            .upper_margin     = 2,
            .lower_margin     = 3,
            .sync       = 0,
      },
      [1] = {
            .pixclock   = 39700,
            .xres       = 480,
            .yres       = 640,
            .bpp        = 16,
            .hsync_len  = 8,
            .left_margin      = 81,
            .right_margin     = 81,
            .vsync_len  = 1,
            .upper_margin     = 2,
            .lower_margin     = 7,
            .sync       = 0,
      },
};

static struct pxafb_mach_info zylonite_sharp_lcd_info = {
      .modes                  = sharp_ls037_modes,
      .num_modes        = 2,
      .lccr0                  = LCCR0_Act,
      .lccr3                  = LCCR3_PCP | LCCR3_HSP | LCCR3_VSP,
      .pxafb_backlight_power  = zylonite_backlight_power,
};

static void __init zylonite_init_lcd(void)
{
      /* backlight GPIO: output, default on */
      gpio_direction_output(gpio_backlight, 1);

      if (lcd_id & 0x20) {
            set_pxa_fb_info(&zylonite_sharp_lcd_info);
            return;
      }

      /* legacy LCD panels, it would be handy here if LCD panel type can
       * be decided at run-time
       */
      if (1)
            zylonite_toshiba_lcd_info.modes = &toshiba_ltm035a776c_mode;
      else
            zylonite_toshiba_lcd_info.modes = &toshiba_ltm04c380k_mode;

      set_pxa_fb_info(&zylonite_toshiba_lcd_info);
}
#else
static inline void zylonite_init_lcd(void) {}
#endif

static void __init zylonite_init(void)
{
      /* board-processor specific initialization */
      zylonite_pxa300_init();
      zylonite_pxa320_init();

      /*
       * Note: We depend that the bootloader set
       * the correct value to MSC register for SMC91x.
       */
      smc91x_resources[1].start = gpio_to_irq(gpio_eth_irq);
      smc91x_resources[1].end   = gpio_to_irq(gpio_eth_irq);
      platform_device_register(&smc91x_device);

      zylonite_init_lcd();
}

MACHINE_START(ZYLONITE, "PXA3xx Platform Development Kit (aka Zylonite)")
      .phys_io    = 0x40000000,
      .boot_params      = 0xa0000100,
      .io_pg_offst      = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .map_io           = pxa_map_io,
      .init_irq   = pxa3xx_init_irq,
      .timer            = &pxa_timer,
      .init_machine     = zylonite_init,
MACHINE_END

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