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littleton.c

/*
 *  linux/arch/arm/mach-pxa/littleton.c
 *
 *  Support for the Marvell Littleton Development Platform.
 *
 *  Author: Jason Chagas (largely modified code)
 *  Created:      Nov 20, 2006
 *  Copyright:    (C) Copyright 2006 Marvell International Ltd.
 *
 *  2007-11-22  modified to align with latest kernel
 *              eric miao <eric.miao@marvell.com>
 *
 *  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
 *  publishhed by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
#include <linux/smc91x.h>

#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <mach/pxa-regs.h>
#include <mach/mfp-pxa300.h>
#include <mach/gpio.h>
#include <mach/pxafb.h>
#include <mach/ssp.h>
#include <mach/pxa2xx_spi.h>
#include <mach/pxa27x_keypad.h>
#include <mach/pxa3xx_nand.h>
#include <mach/littleton.h>

#include "generic.h"

/* Littleton MFP configurations */
static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
      /* LCD */
      GPIO54_LCD_LDD_0,
      GPIO55_LCD_LDD_1,
      GPIO56_LCD_LDD_2,
      GPIO57_LCD_LDD_3,
      GPIO58_LCD_LDD_4,
      GPIO59_LCD_LDD_5,
      GPIO60_LCD_LDD_6,
      GPIO61_LCD_LDD_7,
      GPIO62_LCD_LDD_8,
      GPIO63_LCD_LDD_9,
      GPIO64_LCD_LDD_10,
      GPIO65_LCD_LDD_11,
      GPIO66_LCD_LDD_12,
      GPIO67_LCD_LDD_13,
      GPIO68_LCD_LDD_14,
      GPIO69_LCD_LDD_15,
      GPIO70_LCD_LDD_16,
      GPIO71_LCD_LDD_17,
      GPIO72_LCD_FCLK,
      GPIO73_LCD_LCLK,
      GPIO74_LCD_PCLK,
      GPIO75_LCD_BIAS,

      /* SSP2 */
      GPIO25_SSP2_SCLK,
      GPIO27_SSP2_TXD,
      GPIO17_GPIO,      /* SFRM as chip-select */

      /* Debug Ethernet */
      GPIO90_GPIO,

      /* Keypad */
      GPIO107_KP_DKIN_0,
      GPIO108_KP_DKIN_1,
      GPIO115_KP_MKIN_0,
      GPIO116_KP_MKIN_1,
      GPIO117_KP_MKIN_2,
      GPIO118_KP_MKIN_3,
      GPIO119_KP_MKIN_4,
      GPIO120_KP_MKIN_5,
      GPIO121_KP_MKOUT_0,
      GPIO122_KP_MKOUT_1,
      GPIO123_KP_MKOUT_2,
      GPIO124_KP_MKOUT_3,
      GPIO125_KP_MKOUT_4,
};

static struct resource smc91x_resources[] = {
      [0] = {
            .start      = (LITTLETON_ETH_PHYS + 0x300),
            .end  = (LITTLETON_ETH_PHYS + 0xfffff),
            .flags      = IORESOURCE_MEM,
      },
      [1] = {
            .start      = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
            .end  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
            .flags      = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
      }
};

static struct smc91x_platdata littleton_smc91x_info = {
      .flags      = SMC91X_USE_8BIT | SMC91X_USE_16BIT |
              SMC91X_NOWAIT | SMC91X_USE_DMA,
};

static struct platform_device smc91x_device = {
      .name       = "smc91x",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(smc91x_resources),
      .resource   = smc91x_resources,
      .dev        = {
            .platform_data = &littleton_smc91x_info,
      },
};

#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = {
      [0] = {
            /* VGA */
            .pixclock   = 38250,
            .xres       = 480,
            .yres       = 640,
            .bpp        = 16,
            .hsync_len  = 8,
            .left_margin      = 8,
            .right_margin     = 24,
            .vsync_len  = 2,
            .upper_margin     = 2,
            .lower_margin     = 4,
            .sync       = 0,
      },
      [1] = {
            /* QVGA */
            .pixclock   = 153000,
            .xres       = 240,
            .yres       = 320,
            .bpp        = 16,
            .hsync_len  = 8,
            .left_margin      = 8,
            .right_margin     = 88,
            .vsync_len  = 2,
            .upper_margin     = 2,
            .lower_margin     = 2,
            .sync       = 0,
      },
};

static struct pxafb_mach_info littleton_lcd_info = {
      .modes                  = tpo_tdo24mtea1_modes,
      .num_modes        = 2,
      .lcd_conn         = LCD_COLOR_TFT_16BPP,
};

static void littleton_init_lcd(void)
{
      set_pxa_fb_info(&littleton_lcd_info);
}
#else
static inline void littleton_init_lcd(void) {};
#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */

#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master littleton_spi_info = {
      .num_chipselect         = 1,
};

static void littleton_tdo24m_cs(u32 cmd)
{
      gpio_set_value(LITTLETON_GPIO_LCD_CS, !(cmd == PXA2XX_CS_ASSERT));
}

static struct pxa2xx_spi_chip littleton_tdo24m_chip = {
      .rx_threshold     = 1,
      .tx_threshold     = 1,
      .cs_control = littleton_tdo24m_cs,
};

static struct spi_board_info littleton_spi_devices[] __initdata = {
      {
            .modalias   = "tdo24m",
            .max_speed_hz     = 1000000,
            .bus_num    = 2,
            .chip_select      = 0,
            .controller_data= &littleton_tdo24m_chip,
      },
};

static void __init littleton_init_spi(void)
{
      int err;

      err = gpio_request(LITTLETON_GPIO_LCD_CS, "LCD_CS");
      if (err) {
            pr_warning("failed to request GPIO for LCS CS\n");
            return;
      }

      gpio_direction_output(LITTLETON_GPIO_LCD_CS, 1);

      pxa2xx_set_spi_info(2, &littleton_spi_info);
      spi_register_board_info(ARRAY_AND_SIZE(littleton_spi_devices));
}
#else
static inline void littleton_init_spi(void) {}
#endif

#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
static unsigned int littleton_matrix_key_map[] = {
      /* KEY(row, col, key_code) */
      KEY(1, 3, KEY_0), KEY(0, 0, KEY_1), KEY(1, 0, KEY_2), KEY(2, 0, KEY_3),
      KEY(0, 1, KEY_4), KEY(1, 1, KEY_5), KEY(2, 1, KEY_6), KEY(0, 2, KEY_7),
      KEY(1, 2, KEY_8), KEY(2, 2, KEY_9),

      KEY(0, 3, KEY_KPASTERISK),    /* * */
      KEY(2, 3, KEY_KPDOT),         /* # */

      KEY(5, 4, KEY_ENTER),

      KEY(5, 0, KEY_UP),
      KEY(5, 1, KEY_DOWN),
      KEY(5, 2, KEY_LEFT),
      KEY(5, 3, KEY_RIGHT),
      KEY(3, 2, KEY_HOME),
      KEY(4, 1, KEY_END),
      KEY(3, 3, KEY_BACK),

      KEY(4, 0, KEY_SEND),
      KEY(4, 2, KEY_VOLUMEUP),
      KEY(4, 3, KEY_VOLUMEDOWN),

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

static struct pxa27x_keypad_platform_data littleton_keypad_info = {
      .matrix_key_rows  = 6,
      .matrix_key_cols  = 5,
      .matrix_key_map         = littleton_matrix_key_map,
      .matrix_key_map_size    = ARRAY_SIZE(littleton_matrix_key_map),

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

      .debounce_interval      = 30,
};
static void __init littleton_init_keypad(void)
{
      pxa_set_keypad_info(&littleton_keypad_info);
}
#else
static inline void littleton_init_keypad(void) {}
#endif

#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
static struct mtd_partition littleton_nand_partitions[] = {
      [0] = {
            .name        = "Bootloader",
            .offset      = 0,
            .size        = 0x060000,
            .mask_flags  = MTD_WRITEABLE, /* force read-only */
      },
      [1] = {
            .name        = "Kernel",
            .offset      = 0x060000,
            .size        = 0x200000,
            .mask_flags  = MTD_WRITEABLE, /* force read-only */
      },
      [2] = {
            .name        = "Filesystem",
            .offset      = 0x0260000,
            .size        = 0x3000000,     /* 48M - rootfs */
      },
      [3] = {
            .name        = "MassStorage",
            .offset      = 0x3260000,
            .size        = 0x3d40000,
      },
      [4] = {
            .name        = "BBT",
            .offset      = 0x6FA0000,
            .size        = 0x80000,
            .mask_flags  = MTD_WRITEABLE,  /* force read-only */
      },
      /* NOTE: we reserve some blocks at the end of the NAND flash for
       * bad block management, and the max number of relocation blocks
       * differs on different platforms. Please take care with it when
       * defining the partition table.
       */
};

static struct pxa3xx_nand_platform_data littleton_nand_info = {
      .enable_arbiter   = 1,
      .parts            = littleton_nand_partitions,
      .nr_parts   = ARRAY_SIZE(littleton_nand_partitions),
};

static void __init littleton_init_nand(void)
{
      pxa3xx_set_nand_info(&littleton_nand_info);
}
#else
static inline void littleton_init_nand(void) {}
#endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */

static void __init littleton_init(void)
{
      /* initialize MFP configurations */
      pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg));

      /*
       * Note: we depend bootloader set the correct
       * value to MSC register for SMC91x.
       */
      platform_device_register(&smc91x_device);

      littleton_init_spi();
      littleton_init_lcd();
      littleton_init_keypad();
      littleton_init_nand();
}

MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)")
      .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     = littleton_init,
MACHINE_END

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