waterInvestigationHiddenDanger memoryCall.c 袁明明 commit at 2020-09-01

waterInvestigationHiddenDanger/dataSharedMemory/memoryCall.c

@@ -0,0 +1,137 @@
+/*
+ * SH7372 clock framework support
+ *
+ * Copyright (C) 2010 Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/sh_clk.h>
+#include <linux/clkdev.h>
+#include <mach/common.h>
+
+/* SH7372 registers */
+#define FRQCRA		IOMEM(0xe6150000)
+#define FRQCRB		IOMEM(0xe6150004)
+#define FRQCRC		IOMEM(0xe61500e0)
+#define FRQCRD		IOMEM(0xe61500e4)
+#define VCLKCR1		IOMEM(0xe6150008)
+#define VCLKCR2		IOMEM(0xe615000c)
+#define VCLKCR3		IOMEM(0xe615001c)
+#define FMSICKCR	IOMEM(0xe6150010)
+#define FMSOCKCR	IOMEM(0xe6150014)
+#define FSIACKCR	IOMEM(0xe6150018)
+#define FSIBCKCR	IOMEM(0xe6150090)
+#define SUBCKCR		IOMEM(0xe6150080)
+#define SPUCKCR		IOMEM(0xe6150084)
+#define VOUCKCR		IOMEM(0xe6150088)
+#define HDMICKCR	IOMEM(0xe6150094)
+#define DSITCKCR	IOMEM(0xe6150060)
+#define DSI0PCKCR	IOMEM(0xe6150064)
+#define DSI1PCKCR	IOMEM(0xe6150098)
+#define PLLC01CR	IOMEM(0xe6150028)
+#define PLLC2CR		IOMEM(0xe615002c)
+#define RMSTPCR0	IOMEM(0xe6150110)
+#define RMSTPCR1	IOMEM(0xe6150114)
+#define RMSTPCR2	IOMEM(0xe6150118)
+#define RMSTPCR3	IOMEM(0xe615011c)
+#define RMSTPCR4	IOMEM(0xe6150120)
+#define SMSTPCR0	IOMEM(0xe6150130)
+#define SMSTPCR1	IOMEM(0xe6150134)
+#define SMSTPCR2	IOMEM(0xe6150138)
+#define SMSTPCR3	IOMEM(0xe615013c)
+#define SMSTPCR4	IOMEM(0xe6150140)
+
+#define FSIDIVA		0xFE1F8000
+#define FSIDIVB		0xFE1F8008
+
+/* Platforms must set frequency on their DV_CLKI pin */
+struct clk sh7372_dv_clki_clk = {
+};
+
+/* Fixed 32 KHz root clock from EXTALR pin */
+static struct clk r_clk = {
+	.rate           = 32768,
+};
+
+/*
+ * 26MHz default rate for the EXTAL1 root input clock.
+ * If needed, reset this with clk_set_rate() from the platform code.
+ */
+struct clk sh7372_extal1_clk = {
+	.rate		= 26000000,
+};
+
+/*
+ * 48MHz default rate for the EXTAL2 root input clock.
+ * If needed, reset this with clk_set_rate() from the platform code.
+ */
+struct clk sh7372_extal2_clk = {
+	.rate		= 48000000,
+};
+
+/* A fixed divide-by-2 block */
+static unsigned long div2_recalc(struct clk *clk)
+{
+	return clk->parent->rate / 2;
+}
+
+static struct sh_clk_ops div2_clk_ops = {
+	.recalc		= div2_recalc,
+};
+
+/* Divide dv_clki by two */
+struct clk sh7372_dv_clki_div2_clk = {
+	.ops		= &div2_clk_ops,
+	.parent		= &sh7372_dv_clki_clk,
+};
+
+/* Divide extal1 by two */
+static struct clk extal1_div2_clk = {
+	.ops		= &div2_clk_ops,
+	.parent		= &sh7372_extal1_clk,
+};
+
+/* Divide extal2 by two */
+static struct clk extal2_div2_clk = {
+	.ops		= &div2_clk_ops,
+	.parent		= &sh7372_extal2_clk,
+};
+
+/* Divide extal2 by four */
+static struct clk extal2_div4_clk = {
+	.ops		= &div2_clk_ops,
+	.parent		= &extal2_div2_clk,
+};
+
+/* PLLC0 and PLLC1 */
+static unsigned long pllc01_recalc(struct clk *clk)
+{
+	unsigned long mult = 1;
+
+	if (__raw_readl(PLLC01CR) & (1 << 14))
+		mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1) * 2;
+
+	return clk->parent->rate * mult;
+}
+
+static struct sh_clk_ops pllc01_clk_ops = {
+	.recalc		= pllc01_recalc,
+};
+
+static struct clk pllc0_clk = {
+	.ops		= &pllc01_clk_ops,
+	.flags		= CLK_ENABLE_ON_INIT,