waterDataFluctuationCorrelation hiddenDangerAnalysis.c 李欣儒 commit at 2020-09-25

waterDataFluctuationCorrelation/fluctuationCorrelationOfFireHydrant/hiddenDangerAnalysis.c

@@ -0,0 +1,163 @@
+/*
+ * 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,