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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 <asm/arch/mmc.h>
#include <asm/arch/pxa27x_keypad.h>

#include "generic.h"

#define MAX_SLOTS 3
struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS];

int gpio_backlight;
int gpio_eth_irq;

int wm9713_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 | IORESOURCE_IRQ_HIGHEDGE,
      }
};

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

#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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,
      .lcd_conn         = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
      .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,
      .lcd_conn         = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
      .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

#if defined(CONFIG_MMC)
static int zylonite_mci_ro(struct device *dev)
{
      struct platform_device *pdev = to_platform_device(dev);

      return gpio_get_value(zylonite_mmc_slot[pdev->id].gpio_wp);
}

static int zylonite_mci_init(struct device *dev,
                       irq_handler_t zylonite_detect_int,
                       void *data)
{
      struct platform_device *pdev = to_platform_device(dev);
      int err, cd_irq, gpio_cd, gpio_wp;

      cd_irq = gpio_to_irq(zylonite_mmc_slot[pdev->id].gpio_cd);
      gpio_cd = zylonite_mmc_slot[pdev->id].gpio_cd;
      gpio_wp = zylonite_mmc_slot[pdev->id].gpio_wp;

      /*
       * setup GPIO for Zylonite MMC controller
       */
      err = gpio_request(gpio_cd, "mmc card detect");
      if (err)
            goto err_request_cd;
      gpio_direction_input(gpio_cd);

      err = gpio_request(gpio_wp, "mmc write protect");
      if (err)
            goto err_request_wp;
      gpio_direction_input(gpio_wp);

      err = request_irq(cd_irq, zylonite_detect_int,
                    IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
                    "MMC card detect", data);
      if (err) {
            printk(KERN_ERR "%s: MMC/SD/SDIO: "
                        "can't request card detect IRQ\n", __func__);
            goto err_request_irq;
      }

      return 0;

err_request_irq:
      gpio_free(gpio_wp);
err_request_wp:
      gpio_free(gpio_cd);
err_request_cd:
      return err;
}

static void zylonite_mci_exit(struct device *dev, void *data)
{
      struct platform_device *pdev = to_platform_device(dev);
      int cd_irq, gpio_cd, gpio_wp;

      cd_irq = gpio_to_irq(zylonite_mmc_slot[pdev->id].gpio_cd);
      gpio_cd = zylonite_mmc_slot[pdev->id].gpio_cd;
      gpio_wp = zylonite_mmc_slot[pdev->id].gpio_wp;

      free_irq(cd_irq, data);
      gpio_free(gpio_cd);
      gpio_free(gpio_wp);
}

static struct pxamci_platform_data zylonite_mci_platform_data = {
      .detect_delay     = 20,
      .ocr_mask   = MMC_VDD_32_33|MMC_VDD_33_34,
      .init             = zylonite_mci_init,
      .exit       = zylonite_mci_exit,
      .get_ro           = zylonite_mci_ro,
};

static struct pxamci_platform_data zylonite_mci2_platform_data = {
      .detect_delay     = 20,
      .ocr_mask   = MMC_VDD_32_33|MMC_VDD_33_34,
};

static void __init zylonite_init_mmc(void)
{
      pxa_set_mci_info(&zylonite_mci_platform_data);
      pxa3xx_set_mci2_info(&zylonite_mci2_platform_data);
      if (cpu_is_pxa310())
            pxa3xx_set_mci3_info(&zylonite_mci_platform_data);
}
#else
static inline void zylonite_init_mmc(void) {}
#endif

#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULES)
static unsigned int zylonite_matrix_key_map[] = {
      /* KEY(row, col, key_code) */
      KEY(0, 0, KEY_A), KEY(0, 1, KEY_B), KEY(0, 2, KEY_C), KEY(0, 5, KEY_D),
      KEY(1, 0, KEY_E), KEY(1, 1, KEY_F), KEY(1, 2, KEY_G), KEY(1, 5, KEY_H),
      KEY(2, 0, KEY_I), KEY(2, 1, KEY_J), KEY(2, 2, KEY_K), KEY(2, 5, KEY_L),
      KEY(3, 0, KEY_M), KEY(3, 1, KEY_N), KEY(3, 2, KEY_O), KEY(3, 5, KEY_P),
      KEY(5, 0, KEY_Q), KEY(5, 1, KEY_R), KEY(5, 2, KEY_S), KEY(5, 5, KEY_T),
      KEY(6, 0, KEY_U), KEY(6, 1, KEY_V), KEY(6, 2, KEY_W), KEY(6, 5, KEY_X),
      KEY(7, 1, KEY_Y), KEY(7, 2, KEY_Z),

      KEY(4, 4, KEY_0), KEY(1, 3, KEY_1), KEY(4, 1, KEY_2), KEY(1, 4, KEY_3),
      KEY(2, 3, KEY_4), KEY(4, 2, KEY_5), KEY(2, 4, KEY_6), KEY(3, 3, KEY_7),
      KEY(4, 3, KEY_8), KEY(3, 4, KEY_9),

      KEY(4, 5, KEY_SPACE),
      KEY(5, 3, KEY_KPASTERISK),    /* * */
      KEY(5, 4, KEY_KPDOT),         /* #" */

      KEY(0, 7, KEY_UP),
      KEY(1, 7, KEY_DOWN),
      KEY(2, 7, KEY_LEFT),
      KEY(3, 7, KEY_RIGHT),
      KEY(2, 6, KEY_HOME),
      KEY(3, 6, KEY_END),
      KEY(6, 4, KEY_DELETE),
      KEY(6, 6, KEY_BACK),
      KEY(6, 3, KEY_CAPSLOCK),      /* KEY_LEFTSHIFT), */

      KEY(4, 6, KEY_ENTER),         /* scroll push */
      KEY(5, 7, KEY_ENTER),         /* keypad action */

      KEY(0, 4, KEY_EMAIL),
      KEY(5, 6, KEY_SEND),
      KEY(4, 0, KEY_CALENDAR),
      KEY(7, 6, KEY_RECORD),
      KEY(6, 7, KEY_VOLUMEUP),
      KEY(7, 7, KEY_VOLUMEDOWN),

      KEY(0, 6, KEY_F22),     /* soft1 */
      KEY(1, 6, KEY_F23),     /* soft2 */
      KEY(0, 3, KEY_AUX),     /* contact */
};

static struct pxa27x_keypad_platform_data zylonite_keypad_info = {
      .matrix_key_rows  = 8,
      .matrix_key_cols  = 8,
      .matrix_key_map         = zylonite_matrix_key_map,
      .matrix_key_map_size    = ARRAY_SIZE(zylonite_matrix_key_map),

      .enable_rotary0         = 1,
      .rotary0_up_key         = KEY_UP,
      .rotary0_down_key = KEY_DOWN,

      .debounce_interval      = 30,
};

static void __init zylonite_init_keypad(void)
{
      pxa_set_keypad_info(&zylonite_keypad_info);
}
#else
static inline void zylonite_init_keypad(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();
      zylonite_init_mmc();
      zylonite_init_keypad();
}

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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