aiot/waterDataFluctuationCorrelation/fluctuationCorrelationOfFireHydrant/hiddenDangerAnalysis.c

/*
 * TI DaVinci EVM board support
 *
 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
 *
 * 2007 (c) MontaVista Software, Inc. This file is licensed under
 * the terms of the GNU General Public License version 2. This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pcf857x.h>
#include <linux/i2c/at24.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/phy.h>
#include <linux/clk.h>
#include <linux/videodev2.h>
#include <linux/v4l2-dv-timings.h>
#include <linux/export.h>

#include <media/tvp514x.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/common.h>
#include <linux/platform_data/i2c-davinci.h>
#include <mach/serial.h>
#include <mach/mux.h>
#include <linux/platform_data/mtd-davinci.h>
#include <linux/platform_data/mmc-davinci.h>
#include <linux/platform_data/usb-davinci.h>
#include <linux/platform_data/mtd-davinci-aemif.h>

#include "davinci.h"

#define DM644X_EVM_PHY_ID		"davinci_mdio-0:01"
#define LXT971_PHY_ID	(0x001378e2)
#define LXT971_PHY_MASK	(0xfffffff0)

static struct mtd_partition davinci_evm_norflash_partitions[] = {
	/* bootloader (UBL, U-Boot, etc) in first 5 sectors */
	{
		.name		= "bootloader",
		.offset		= 0,
		.size		= 5 * SZ_64K,
		.mask_flags	= MTD_WRITEABLE, /* force read-only */
	},
	/* bootloader params in the next 1 sectors */
	{
		.name		= "params",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_64K,
		.mask_flags	= 0,
	},
	/* kernel */
	{
		.name		= "kernel",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_2M,
		.mask_flags	= 0
	},
	/* file system */
	{
		.name		= "filesystem",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0
	}
};

static struct physmap_flash_data davinci_evm_norflash_data = {
	.width		= 2,
	.parts		= davinci_evm_norflash_partitions,
	.nr_parts	= ARRAY_SIZE(davinci_evm_norflash_partitions),
};

/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
 * limits addresses to 16M, so using addresses past 16M will wrap */
static struct resource davinci_evm_norflash_resource = {
	.start		= DM644X_ASYNC_EMIF_DATA_CE0_BASE,
	.end		= DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,
	.flags		= IORESOURCE_MEM,
};

static struct platform_device davinci_evm_norflash_device = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
		.platform_data	= &davinci_evm_norflash_data,
	},
	.num_resources	= 1,
	.resource	= &davinci_evm_norflash_resource,
};

/* DM644x EVM includes a 64 MByte small-page NAND flash (16K blocks).
 * It may used instead of the (default) NOR chip to boot, using TI's
 * tools to install the secondary boot loader (UBL) and U-Boot.
 */
static struct mtd_partition davinci_evm_nandflash_partition[] = {
	/* Bootloader layout depends on whose u-boot is installed, but we
	 * can hide all the details.
	 *  - block 0 for u-boot environment ... in mainline u-boot
	 *  - block 1 for UBL (plus up to four backup copies in blocks 2..5)
	 *  - blocks 6...? for u-boot
	 *  - blocks 16..23 for u-boot environment ... in TI's u-boot
	 */
	{
		.name		= "bootloader",
		.offset		= 0,
		.size		= SZ_256K + SZ_128K,
		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
	},
	/* Kernel */
	{
		.name		= "kernel",
		.offset		= MTDPART_OFS_APPEND,
		.size		= SZ_4M,
		.mask_flags	= 0,
	},
	/* File system (older GIT kernels started this on the 5MB mark) */
	{
		.name		= "filesystem",
		.offset		= MTDPART_OFS_APPEND,
		.size		= MTDPART_SIZ_FULL,
		.mask_flags	= 0,
	}
	/* A few blocks at end hold a flash BBT ... created by TI's CCS
	 * using flashwriter_nand.out, but ignored by TI's versions of
	 * Linux and u-boot.  We boot faster by using them.
	 */
};

static struct davinci_aemif_timing davinci_evm_nandflash_timing = {
	.wsetup		= 20,
	.wstrobe	= 40,
	.whold		= 20,
	.rsetup		= 10,
	.rstrobe	= 40,
	.rhold		= 10,
	.ta		= 40,
};

static struct davinci_nand_pdata davinci_evm_nandflash_data = {
	.parts		= davinci_evm_nandflash_partition,
	.nr_parts	= ARRAY_SIZE(davinci_evm_nandflash_partition),
	.ecc_mode	= NAND_ECC_HW,
	.bbt_options	= NAND_BBT_USE_FLASH,
	.timing		= &davinci_evm_nandflash_timing,
};

static struct resource davinci_evm_nandflash_resource[] = {
	{
		.start		= DM644X_ASYNC_EMIF_DATA_CE0_BASE,
		.end		= DM644X_ASYNC_EMIF_DATA_CE0_BASE + SZ_16M - 1,