waterDataPreprocessing basicAlgorithmEncapsulation.c 徐寅秋 commit at 2020-09-23

waterDataPreprocessing/dataProcessing/basicAlgorithmEncapsulation.c

@@ -0,0 +1,106 @@
+/*
+ * linux/arch/arm/mach-omap2/gpmc-onenand.c
+ *
+ * Copyright (C) 2006 - 2009 Nokia Corporation
+ * Contacts:	Juha Yrjola
+ *		Tony Lindgren
+ *
+ * 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.
+ */
+
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/onenand_regs.h>
+#include <linux/io.h>
+#include <linux/platform_data/mtd-onenand-omap2.h>
+#include <linux/err.h>
+
+#include <asm/mach/flash.h>
+
+#include "gpmc.h"
+#include "soc.h"
+#include "gpmc-onenand.h"
+
+#define	ONENAND_IO_SIZE	SZ_128K
+
+#define	ONENAND_FLAG_SYNCREAD	(1 << 0)
+#define	ONENAND_FLAG_SYNCWRITE	(1 << 1)
+#define	ONENAND_FLAG_HF		(1 << 2)
+#define	ONENAND_FLAG_VHF	(1 << 3)
+
+static unsigned onenand_flags;
+static unsigned latency;
+
+static struct omap_onenand_platform_data *gpmc_onenand_data;
+
+static struct resource gpmc_onenand_resource = {
+	.flags		= IORESOURCE_MEM,
+};
+
+static struct platform_device gpmc_onenand_device = {
+	.name		= "omap2-onenand",
+	.id		= -1,
+	.num_resources	= 1,
+	.resource	= &gpmc_onenand_resource,
+};
+
+static struct gpmc_timings omap2_onenand_calc_async_timings(void)
+{
+	struct gpmc_device_timings dev_t;
+	struct gpmc_timings t;
+
+	const int t_cer = 15;
+	const int t_avdp = 12;
+	const int t_aavdh = 7;
+	const int t_ce = 76;
+	const int t_aa = 76;
+	const int t_oe = 20;
+	const int t_cez = 20; /* max of t_cez, t_oez */
+	const int t_wpl = 40;
+	const int t_wph = 30;
+
+	memset(&dev_t, 0, sizeof(dev_t));
+
+	dev_t.mux = true;
+	dev_t.t_avdp_r = max_t(int, t_avdp, t_cer) * 1000;
+	dev_t.t_avdp_w = dev_t.t_avdp_r;
+	dev_t.t_aavdh = t_aavdh * 1000;
+	dev_t.t_aa = t_aa * 1000;
+	dev_t.t_ce = t_ce * 1000;
+	dev_t.t_oe = t_oe * 1000;
+	dev_t.t_cez_r = t_cez * 1000;
+	dev_t.t_cez_w = dev_t.t_cez_r;
+	dev_t.t_wpl = t_wpl * 1000;
+	dev_t.t_wph = t_wph * 1000;
+
+	gpmc_calc_timings(&t, &dev_t);
+
+	return t;
+}
+
+static int gpmc_set_async_mode(int cs, struct gpmc_timings *t)
+{
+	/* Configure GPMC for asynchronous read */
+	gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1,
+			  GPMC_CONFIG1_DEVICESIZE_16 |
+			  GPMC_CONFIG1_MUXADDDATA);
+
+	return gpmc_cs_set_timings(cs, t);
+}
+
+static void omap2_onenand_set_async_mode(void __iomem *onenand_base)
+{
+	u32 reg;
+
+	/* Ensure sync read and sync write are disabled */
+	reg = readw(onenand_base + ONENAND_REG_SYS_CFG1);
+	reg &= ~ONENAND_SYS_CFG1_SYNC_READ & ~ONENAND_SYS_CFG1_SYNC_WRITE;
+	writew(reg, onenand_base + ONENAND_REG_SYS_CFG1);
+}
+
+static void set_onenand_cfg(void __iomem *onenand_base)
+{
+	u32 reg;