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ezx.c

/*
 *  ezx.c - Common code for the EZX platform.
 *
 *  Copyright (C) 2005-2006 Harald Welte <laforge@openezx.org>,
 *            2007-2008 Daniel Ribeiro <drwyrm@gmail.com>,
 *            2007-2008 Stefan Schmidt <stefan@datenfreihafen.org>
 *
 *  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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/pwm_backlight.h>

#include <asm/setup.h>
#include <mach/pxafb.h>
#include <mach/ohci.h>
#include <mach/i2c.h>

#include <mach/mfp-pxa27x.h>
#include <mach/pxa-regs.h>
#include <mach/pxa2xx-regs.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include "devices.h"
#include "generic.h"

static struct platform_pwm_backlight_data ezx_backlight_data = {
      .pwm_id           = 0,
      .max_brightness   = 1023,
      .dft_brightness   = 1023,
      .pwm_period_ns    = 78770,
};

static struct platform_device ezx_backlight_device = {
      .name       = "pwm-backlight",
      .dev        = {
            .parent     = &pxa27x_device_pwm0.dev,
            .platform_data = &ezx_backlight_data,
      },
};

static struct pxafb_mode_info mode_ezx_old = {
      .pixclock         = 150000,
      .xres             = 240,
      .yres             = 320,
      .bpp              = 16,
      .hsync_len        = 10,
      .left_margin            = 20,
      .right_margin           = 10,
      .vsync_len        = 2,
      .upper_margin           = 3,
      .lower_margin           = 2,
      .sync             = 0,
};

static struct pxafb_mach_info ezx_fb_info_1 = {
      .modes            = &mode_ezx_old,
      .num_modes  = 1,
      .lcd_conn   = LCD_COLOR_TFT_16BPP,
};

static struct pxafb_mode_info mode_72r89803y01 = {
      .pixclock         = 192308,
      .xres             = 240,
      .yres             = 320,
      .bpp              = 32,
      .depth                  = 18,
      .hsync_len        = 10,
      .left_margin            = 20,
      .right_margin           = 10,
      .vsync_len        = 2,
      .upper_margin           = 3,
      .lower_margin           = 2,
      .sync             = 0,
};

static struct pxafb_mach_info ezx_fb_info_2 = {
      .modes            = &mode_72r89803y01,
      .num_modes  = 1,
      .lcd_conn   = LCD_COLOR_TFT_18BPP,
};

static struct platform_device *devices[] __initdata = {
      &ezx_backlight_device,
};

static unsigned long ezx_pin_config[] __initdata = {
      /* PWM backlight */
      GPIO16_PWM0_OUT,

      /* BTUART */
      GPIO42_BTUART_RXD,
      GPIO43_BTUART_TXD,
      GPIO44_BTUART_CTS,
      GPIO45_BTUART_RTS,

      /* STUART */
      GPIO46_STUART_RXD,
      GPIO47_STUART_TXD,

      /* For A780 support (connected with Neptune GSM chip) */
      GPIO30_USB_P3_2,  /* ICL_TXENB */
      GPIO31_USB_P3_6,  /* ICL_VPOUT */
      GPIO90_USB_P3_5,  /* ICL_VPIN */
      GPIO91_USB_P3_1,  /* ICL_XRXD */
      GPIO56_USB_P3_4,  /* ICL_VMOUT */
      GPIO113_USB_P3_3, /* /ICL_VMIN */
};

static void __init ezx_init(void)
{
      pxa2xx_mfp_config(ARRAY_AND_SIZE(ezx_pin_config));
      pxa_set_i2c_info(NULL);
      if (machine_is_ezx_a780() || machine_is_ezx_e680())
            set_pxa_fb_info(&ezx_fb_info_1);
      else
            set_pxa_fb_info(&ezx_fb_info_2);

      platform_add_devices(devices, ARRAY_SIZE(devices));
}

static void __init ezx_fixup(struct machine_desc *desc, struct tag *tags,
            char **cmdline, struct meminfo *mi)
{
      /* We have two ram chips. First one with 32MB at 0xA0000000 and a second
       * 16MB one at 0xAC000000
       */
      mi->nr_banks = 2;
      mi->bank[0].start = 0xa0000000;
      mi->bank[0].node = 0;
      mi->bank[0].size = (32*1024*1024);
      mi->bank[1].start = 0xac000000;
      mi->bank[1].node = 1;
      mi->bank[1].size = (16*1024*1024);
}

#ifdef CONFIG_MACH_EZX_A780
MACHINE_START(EZX_A780, "Motorola EZX A780")
      .phys_io        = 0x40000000,
      .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup                  = ezx_fixup,
      .boot_params    = 0xa0000100,
      .map_io         = pxa_map_io,
      .init_irq       = pxa27x_init_irq,
      .timer          = &pxa_timer,
      .init_machine   = &ezx_init,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EZX_E680
MACHINE_START(EZX_E680, "Motorola EZX E680")
      .phys_io        = 0x40000000,
      .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup                  = ezx_fixup,
      .boot_params    = 0xa0000100,
      .map_io         = pxa_map_io,
      .init_irq       = pxa27x_init_irq,
      .timer          = &pxa_timer,
      .init_machine   = &ezx_init,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EZX_A1200
MACHINE_START(EZX_A1200, "Motorola EZX A1200")
      .phys_io        = 0x40000000,
      .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup                  = ezx_fixup,
      .boot_params    = 0xa0000100,
      .map_io         = pxa_map_io,
      .init_irq       = pxa27x_init_irq,
      .timer          = &pxa_timer,
      .init_machine   = &ezx_init,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EZX_A910
MACHINE_START(EZX_A910, "Motorola EZX A910")
      .phys_io        = 0x40000000,
      .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup                  = ezx_fixup,
      .boot_params    = 0xa0000100,
      .map_io         = pxa_map_io,
      .init_irq       = pxa27x_init_irq,
      .timer          = &pxa_timer,
      .init_machine   = &ezx_init,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EZX_E6
MACHINE_START(EZX_E6, "Motorola EZX E6")
      .phys_io        = 0x40000000,
      .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup                  = ezx_fixup,
      .boot_params    = 0xa0000100,
      .map_io         = pxa_map_io,
      .init_irq       = pxa27x_init_irq,
      .timer          = &pxa_timer,
      .init_machine   = &ezx_init,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EZX_E2
MACHINE_START(EZX_E2, "Motorola EZX E2")
      .phys_io        = 0x40000000,
      .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .fixup                  = ezx_fixup,
      .boot_params    = 0xa0000100,
      .map_io         = pxa_map_io,
      .init_irq       = pxa27x_init_irq,
      .timer          = &pxa_timer,
      .init_machine   = &ezx_init,
MACHINE_END
#endif

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