waterDataFluctuationCorrelation memoryCall.c 李海忠 commit at 2020-09-02

waterDataFluctuationCorrelation/dataSharedMemory/memoryCall.c

@@ -0,0 +1,198 @@
+/*
+ *  linux/arch/arm/mach-nomadik/board-8815nhk.c
+ *
+ *  Copyright (C) STMicroelectronics
+ *
+ * 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.
+ *
+ *  NHK15 board specifc driver definition
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/amba/bus.h>
+#include <linux/amba/mmci.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/fsmc.h>
+#include <linux/mtd/onenand.h>
+#include <linux/mtd/partitions.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/platform_data/pinctrl-nomadik.h>
+#include <linux/platform_data/clocksource-nomadik-mtu.h>
+#include <asm/hardware/vic.h>
+#include <asm/sizes.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+#include <asm/mach/time.h>
+#include <mach/irqs.h>
+
+#include "cpu-8815.h"
+
+/* Initial value for SRC control register: all timers use MXTAL/8 source */
+#define SRC_CR_INIT_MASK	0x00007fff
+#define SRC_CR_INIT_VAL		0x2aaa8000
+
+#define ALE_OFF 0x1000000
+#define CLE_OFF 0x800000
+
+/* These addresses span 16MB, so use three individual pages */
+static struct resource nhk8815_nand_resources[] = {
+	{
+		.name = "nand_data",
+		.start = 0x40000000,
+		.end = 0x40000000 + SZ_16K - 1,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.name = "nand_addr",
+		.start = 0x40000000 + ALE_OFF,
+		.end = 0x40000000 +ALE_OFF + SZ_16K - 1,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.name = "nand_cmd",
+		.start = 0x40000000 + CLE_OFF,
+		.end = 0x40000000 + CLE_OFF + SZ_16K - 1,
+		.flags = IORESOURCE_MEM,
+	}, {
+		.name  = "fsmc_regs",
+		.start = NOMADIK_FSMC_BASE,
+		.end   = NOMADIK_FSMC_BASE + SZ_4K - 1,
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+/*
+ * These partitions are the same as those used in the 2.6.20 release
+ * shipped by the vendor; the first two partitions are mandated
+ * by the boot ROM, and the bootloader area is somehow oversized...
+ */
+static struct mtd_partition nhk8815_partitions[] = {
+	{
+		.name	= "X-Loader(NAND)",
+		.offset = 0,
+		.size	= SZ_256K,
+	}, {
+		.name	= "MemInit(NAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= SZ_256K,
+	}, {
+		.name	= "BootLoader(NAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= SZ_2M,
+	}, {
+		.name	= "Kernel zImage(NAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= 3 * SZ_1M,
+	}, {
+		.name	= "Root Filesystem(NAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= 22 * SZ_1M,
+	}, {
+		.name	= "User Filesystem(NAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= MTDPART_SIZ_FULL,
+	}
+};
+
+static struct fsmc_nand_timings nhk8815_nand_timings = {
+	.thiz	= 0,
+	.thold	= 0x10,
+	.twait	= 0x0A,
+	.tset	= 0,
+};
+
+static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
+	.nand_timings = &nhk8815_nand_timings,
+	.partitions = nhk8815_partitions,
+	.nr_partitions = ARRAY_SIZE(nhk8815_partitions),
+	.width = FSMC_NAND_BW8,
+};
+
+static struct platform_device nhk8815_nand_device = {
+	.name = "fsmc-nand",
+	.id = -1,
+	.resource = nhk8815_nand_resources,
+	.num_resources = ARRAY_SIZE(nhk8815_nand_resources),
+	.dev = {
+		.platform_data = &nhk8815_nand_platform_data,
+	},
+};
+
+/* These are the partitions for the OneNand device, different from above */
+static struct mtd_partition nhk8815_onenand_partitions[] = {
+	{
+		.name	= "X-Loader(OneNAND)",
+		.offset = 0,
+		.size	= SZ_256K,
+	}, {
+		.name	= "MemInit(OneNAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= SZ_256K,
+	}, {
+		.name	= "BootLoader(OneNAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= SZ_2M-SZ_256K,
+	}, {
+		.name	= "SysImage(OneNAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= 4 * SZ_1M,
+	}, {
+		.name	= "Root Filesystem(OneNAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= 22 * SZ_1M,
+	}, {
+		.name	= "User Filesystem(OneNAND)",
+		.offset	= MTDPART_OFS_APPEND,
+		.size	= MTDPART_SIZ_FULL,
+	}
+};
+
+static struct onenand_platform_data nhk8815_onenand_data = {
+	.parts		= nhk8815_onenand_partitions,
+	.nr_parts	= ARRAY_SIZE(nhk8815_onenand_partitions),
+};
+
+static struct resource nhk8815_onenand_resource[] = {
+	{
+		.start		= 0x30000000,
+		.end		= 0x30000000 + SZ_128K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device nhk8815_onenand_device = {
+	.name		= "onenand-flash",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &nhk8815_onenand_data,
+	},
+	.resource	= nhk8815_onenand_resource,
+	.num_resources	= ARRAY_SIZE(nhk8815_onenand_resource),
+};
+
+/* bus control reg. and bus timing reg. for CS0..CS3 */
+#define FSMC_BCR(x)	(NOMADIK_FSMC_VA + (x << 3))
+#define FSMC_BTR(x)	(NOMADIK_FSMC_VA + (x << 3) + 0x04)
+
+static void __init nhk8815_onenand_init(void)
+{
+#ifdef CONFIG_MTD_ONENAND
+       /* Set up SMCS0 for OneNand */
+	writel(0x000030db, FSMC_BCR(0));
+	writel(0x02100551, FSMC_BTR(0));
+#endif
+}
+
+static struct mmci_platform_data mmcsd_plat_data = {
+	.ocr_mask = MMC_VDD_29_30,
+	.f_max = 48000000,
+	.gpio_wp = -1,
+	.gpio_cd = 111,