path: root/arch/arm/mach-mx37/mx37_3stack.c

/*
 * Copyright 2007-2008 Freescale Semiconductor, Inc. All Rights Reserved.
 */

/*
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <linux/types.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/nodemask.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
#if defined(CONFIG_MTD) || defined(CONFIG_MTD_MODULE)
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>

#include <asm/mach/flash.h>
#endif

#include <asm/hardware.h>
#include <asm/arch/spba.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/arch/memory.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mmc.h>
#include "board-mx37_3stack.h"
#include "iomux.h"
#include "crm_regs.h"

/*!
 * @file mach-mx37/mx37_3stack.c
 *
 * @brief This file contains the board specific initialization routines.
 *
 * @ingroup MSL_MX37
 */
extern void mxc_map_io(void);
extern void mxc_init_irq(void);
extern void mxc_cpu_init(void) __init;
extern struct sys_timer mxc_timer;
extern void mxc_cpu_common_init(void);
extern int mxc_clocks_init(void);
extern void __init early_console_setup(char *);

static void mxc_nop_release(struct device *dev)
{
	/* Nothing */
}

/* Get reference input clocks */
void board_ref_clk_rate(unsigned long *ckil, unsigned long *osc,
			unsigned long *ckih)
{
	*ckil = 32768;
	*osc = 24000000;
	*ckih = 22579200;
}

/* MTD NAND flash */
#if defined(CONFIG_MTD_NAND_MXC) || defined(CONFIG_MTD_NAND_MXC_MODULE) \
	|| defined(CONFIG_MTD_NAND_MXC_V2) || defined(CONFIG_MTD_NAND_MXC_V2_MODULE) \
	|| defined(CONFIG_MTD_NAND_MXC_V3)

static struct mtd_partition mxc_nand_partitions[] = {
	{
	 .name = "nand.bootloader",
	 .offset = 0,
	 .size = 2 * 1024 * 1024},
	{
	 .name = "nand.kernel",
	 .offset = MTDPART_OFS_APPEND,
	 .size = 4 * 1024 * 1024},
	{
	 .name = "nand.rootfs",
	 .offset = MTDPART_OFS_APPEND,
	 .size = 128 * 1024 * 1024},
	{
	 .name = "nand.userfs1",
	 .offset = MTDPART_OFS_APPEND,
	 .size = 256 * 1024 * 1024},
	{
	 .name = "nand.userfs2",
	 .offset = MTDPART_OFS_APPEND,
	 .size = 512 * 1024 * 1024},
	{
	 .name = "nand.userfs3",
	 .offset = MTDPART_OFS_APPEND,
	 .size = 1024 * 1024 * 1024},
};

static struct flash_platform_data mxc_nand_data = {
	.parts = mxc_nand_partitions,
	.nr_parts = ARRAY_SIZE(mxc_nand_partitions),
	.width = 1,
};

static struct platform_device mxc_nandv2_mtd_device = {
	.name = "mxc_nandv2_flash",
	.id = 0,
	.dev = {
		.release = mxc_nop_release,
		.platform_data = &mxc_nand_data,
		},
};

static void mxc_init_nand_mtd(void)
{
//      if (__raw_readl(MXC_CCM_RCSR) & MXC_CCM_RCSR_NF16B) {
//              mxc_nand_data.width = 2;
//      }
	(void)platform_device_register(&mxc_nandv2_mtd_device);
}
#else
static inline void mxc_init_nand_mtd(void)
{
}
#endif

static void lcd_reset(void)
{
	static int first;

	/* ensure that LCDIO(1.8V) has been turn on */
	/* active reset line GPIO */
	if (!first) {
		mxc_request_iomux(MX37_PIN_GPIO1_5, IOMUX_CONFIG_GPIO);
		first = 1;
	}
	mxc_set_gpio_dataout(MX37_PIN_GPIO1_5, 0);
	mxc_set_gpio_direction(MX37_PIN_GPIO1_5, 0);
	/* do reset */
	msleep(10);		/* tRES >= 100us */
	mxc_set_gpio_dataout(MX37_PIN_GPIO1_5, 1);
	msleep(60);
}

static struct mxc_lcd_platform_data lcd_data = {
	.core_reg = "LDO1",
	.io_reg = "DCDC6",
	.reset = lcd_reset,
};

#if defined(CONFIG_KEYBOARD_MPR084) || defined(CONFIG_KEYBOARD_MPR084_MODULE)
/*!
 * These functions are used to configure and the GPIO pins for keypad to
 * activate and deactivate it.
 */
extern void gpio_keypad_active(void);

extern void gpio_keypad_inactive(void);

static u16 keymap[] = {
	KEY_DOWN, KEY_LEFT, KEY_ENTER,
	KEY_RIGHT, KEY_UP, KEY_LEFTALT,
	KEY_TAB, KEY_ESC,
};

static struct mxc_keyp_platform_data keypad_data = {
	.matrix = keymap,
	.active = gpio_keypad_active,
	.inactive = gpio_keypad_inactive,
};
#endif
static struct i2c_board_info mxc_i2c0_board_info[] __initdata = {
	{
	 .driver_name = "TSC2007",
	 .addr = 0x48,
	 .irq = IOMUX_TO_IRQ(MX37_PIN_AUD5_RXFS),
	 },
	{
	 .driver_name = "MPR084",
	 .addr = 0x5D,
	 .platform_data = &keypad_data,
	 .irq = IOMUX_TO_IRQ(MX37_PIN_GPIO1_3),
	 },
};

static struct spi_board_info mxc_spi_board_info[] __initdata = {
	{
	 .modalias = "cpld_spi",
	 .max_speed_hz = 27000000,
	 .bus_num = 2,
	 .chip_select = 0,
	 },
	{
	 .modalias = "lcd_spi",
	 .max_speed_hz = 5000000,
	 .bus_num = 2,
	 .platform_data = &lcd_data,
	 .chip_select = 1,},
};

#if defined(CONFIG_FB_MXC_SYNC_PANEL) || defined(CONFIG_FB_MXC_SYNC_PANEL_MODULE)
static struct platform_device mxc_fb_device[] = {
	{
	 .name = "mxc_sdc_fb",
	 .id = 0,
	 .dev = {
		 .release = mxc_nop_release,
		 .coherent_dma_mask = 0xFFFFFFFF,
		 },
	 },
	{
	 .name = "mxc_sdc_fb",
	 .id = 1,
	 .dev = {
		 .release = mxc_nop_release,
		 .coherent_dma_mask = 0xFFFFFFFF,
		 },
	 },
	{
	 .name = "mxc_sdc_fb",
	 .id = 2,
	 .dev = {
		 .release = mxc_nop_release,
		 .coherent_dma_mask = 0xFFFFFFFF,
		 },
	 },
};

static void mxc_init_fb(void)
{
	(void)platform_device_register(&mxc_fb_device[0]);
	(void)platform_device_register(&mxc_fb_device[1]);
	(void)platform_device_register(&mxc_fb_device[2]);
}
#else
static inline void mxc_init_fb(void)
{
}
#endif

#if defined(CONFIG_TOUCHSCREEN_TSC2007) || defined(CONFIG_TOUCHSCREEN_TSC2007_MODULE)

static int __init mxc_init_touchscreen(void)
{
	int pad_val;

	mxc_request_iomux(MX37_PIN_AUD5_RXFS, IOMUX_CONFIG_GPIO);
	pad_val = PAD_CTL_PKE_ENABLE | PAD_CTL_100K_PU;
	mxc_iomux_set_pad(MX37_PIN_AUD5_RXFS, pad_val);
	mxc_set_gpio_direction(MX37_PIN_AUD5_RXFS, 1);

	return 0;
}
#else
static int __init mxc_init_touchscreen(void)
{
	return 0;
}
#endif

/*lan9217 device*/
#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
static struct resource smsc911x_resources[] = {
	{
	 .start = LAN9217_BASE_ADDR,
	 .end = LAN9217_BASE_ADDR + 255,
	 .flags = IORESOURCE_MEM,
	 },
	{
	 .start = MXC_EXP_IO_BASE,
	 .flags = IORESOURCE_IRQ,
	 },
};
static struct platform_device smsc_lan9217_device = {
	.name = "smsc911x",
	.id = 0,
	.dev = {
		.release = mxc_nop_release,
		},
	.num_resources = ARRAY_SIZE(smsc911x_resources),
	.resource = smsc911x_resources,
};

static int __init mxc_init_enet(void)
{
	(void)platform_device_register(&smsc_lan9217_device);
	return 0;
}
#else
static int __init mxc_init_enet(void)
{
	return 0;
}
#endif

late_initcall(mxc_init_enet);

#if defined(CONFIG_PATA_FSL) || defined(CONFIG_PATA_FSL_MODULE)
extern void gpio_ata_active(void);
extern void gpio_ata_inactive(void);

static int ata_init(struct platform_device *pdev)
{
	/* Configure the pins */
	gpio_ata_active();

	return 0;
}

static void ata_exit(void)
{
	/* Free the pins */
	gpio_ata_inactive();
}

static struct fsl_ata_platform_data ata_data = {
	.udma_mask = 0x0F,	/* board can handle up to UDMA3 */
	.fifo_alarm = MXC_IDE_DMA_WATERMARK / 2,
	.max_sg = MXC_IDE_DMA_BD_NR,
	.init = ata_init,
	.exit = ata_exit,
	.core_reg = NULL,	/*"LDO2", */
	.io_reg = NULL,		/*"LDO3", */
};

static struct resource pata_fsl_resources[] = {
	[0] = {			/* I/O */
	       .start = ATA_BASE_ADDR,
	       .end = ATA_BASE_ADDR + 0x000000C8,
	       .flags = IORESOURCE_MEM,
	       },
	[2] = {			/* IRQ */
	       .start = MXC_INT_ATA,
	       .end = MXC_INT_ATA,
	       .flags = IORESOURCE_IRQ,
	       },
};

static struct platform_device pata_fsl_device = {
	.name = "pata_fsl",
	.id = -1,
	.num_resources = ARRAY_SIZE(pata_fsl_resources),
	.resource = pata_fsl_resources,
	.dev = {
		.platform_data = &ata_data,
		.coherent_dma_mask = ~0,
		},
};

static void __init mxc_init_pata(void)
{
	(void)platform_device_register(&pata_fsl_device);
}
#else				/* CONFIG_PATA_FSL */
static void __init mxc_init_pata(void)
{
}
#endif				/* CONFIG_PATA_FSL */

/*!
 * Board specific fixup function. It is called by \b setup_arch() in
 * setup.c file very early on during kernel starts. It allows the user to
 * statically fill in the proper values for the passed-in parameters. None of
 * the parameters is used currently.
 *
 * @param  desc         pointer to \b struct \b machine_desc
 * @param  tags         pointer to \b struct \b tag
 * @param  cmdline      pointer to the command line
 * @param  mi           pointer to \b struct \b meminfo
 */
static void __init fixup_mxc_board(struct machine_desc *desc, struct tag *tags,
				   char **cmdline, struct meminfo *mi)
{
	mxc_cpu_init();

#ifdef CONFIG_DISCONTIGMEM
	do {
		int nid;
		mi->nr_banks = MXC_NUMNODES;
		for (nid = 0; nid < mi->nr_banks; nid++) {
			SET_NODE(mi, nid);
		}
	} while (0);
#endif
}

#if defined(CONFIG_MMC_IMX_ESDHCI) || defined(CONFIG_MMC_IMX_ESDHCI_MODULE)
extern unsigned int sdhc_get_card_det_status(struct device *dev);
extern int sdhc_init_card_det(int id);

static struct mxc_mmc_platform_data mmc_data = {
	.ocr_mask = MMC_VDD_32_33,
	.min_clk = 400000,
	.max_clk = 52000000,
	.card_inserted_state = 1,
	.status = sdhc_get_card_det_status,
	.clock_mmc = "esdhc_clk",
};

/*!
 * Resource definition for the SDHC1
 */
static struct resource mxcsdhc1_resources[] = {
	[0] = {
	       .start = MMC_SDHC1_BASE_ADDR,
	       .end = MMC_SDHC1_BASE_ADDR + SZ_4K - 1,
	       .flags = IORESOURCE_MEM,
	       },
	[1] = {
	       .start = MXC_INT_MMC_SDHC1,
	       .end = MXC_INT_MMC_SDHC1,
	       .flags = IORESOURCE_IRQ,
	       },
	[2] = {
	       .start = 0,
	       .end = 0,
	       .flags = IORESOURCE_IRQ,
	       },
};

/*! Device Definition for MXC SDHC1 */
static struct platform_device mxcsdhc1_device = {
	.name = "mxsdhci",
	.id = 0,
	.dev = {
		.release = mxc_nop_release,
		.platform_data = &mmc_data,
		},
	.num_resources = ARRAY_SIZE(mxcsdhc1_resources),
	.resource = mxcsdhc1_resources,
};

static inline void mxc_init_mmc(void)
{
	int cd_irq;

	cd_irq = sdhc_init_card_det(0);
	if (cd_irq) {
		mxcsdhc1_device.resource[2].start = cd_irq;
		mxcsdhc1_device.resource[2].end = cd_irq;
	}

	spba_take_ownership(SPBA_SDHC1, SPBA_MASTER_A | SPBA_MASTER_C);
	(void)platform_device_register(&mxcsdhc1_device);
}
#else
static inline void mxc_init_mmc(void)
{
}
#endif

/*!
 * Board specific initialization.
 */
static void __init mxc_board_init(void)
{
	mxc_cpu_common_init();
	mxc_clocks_init();
	mxc_gpio_init();
	early_console_setup(saved_command_line);
	i2c_register_board_info(0, mxc_i2c0_board_info,
				ARRAY_SIZE(mxc_i2c0_board_info));

	spi_register_board_info(mxc_spi_board_info,
				ARRAY_SIZE(mxc_spi_board_info));
	mxc_init_nand_mtd();
	mxc_init_mmc();
	mxc_init_pata();
	mxc_init_fb();
	mxc_init_touchscreen();
}

/*
 * The following uses standard kernel macros define in arch.h in order to
 * initialize __mach_desc_MX37_3STACK data structure.
 */
/* *INDENT-OFF* */
MACHINE_START(MX37_3DS, "Freescale MX37 3-Stack Board")
	/* Maintainer: Freescale Semiconductor, Inc. */
	.phys_io = AIPS1_BASE_ADDR,
	.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
	.boot_params = PHYS_OFFSET + 0x100,
	.fixup = fixup_mxc_board,
	.map_io = mxc_map_io,
	.init_irq = mxc_init_irq,
	.init_machine = mxc_board_init,
	.timer = &mxc_timer,
MACHINE_END