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-rw-r--r--arch/arm/mach-s3c/simtec-pm.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c/simtec-pm.c b/arch/arm/mach-s3c/simtec-pm.c
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+++ b/arch/arm/mach-s3c/simtec-pm.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright 2004 Simtec Electronics
+// Ben Dooks <ben@simtec.co.uk>
+//
+// http://armlinux.simtec.co.uk/
+//
+// Power Management helpers for Simtec S3C24XX implementations
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/io.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "map.h"
+#include "regs-gpio.h"
+
+#include <asm/mach-types.h>
+
+#include "pm.h"
+
+#include "regs-mem-s3c24xx.h"
+
+#define COPYRIGHT ", Copyright 2005 Simtec Electronics"
+
+/* pm_simtec_init
+ *
+ * enable the power management functions
+*/
+
+static __init int pm_simtec_init(void)
+{
+ unsigned long gstatus4;
+
+ /* check which machine we are running on */
+
+ if (!machine_is_bast() && !machine_is_vr1000() &&
+ !machine_is_anubis() && !machine_is_osiris() &&
+ !machine_is_aml_m5900())
+ return 0;
+
+ printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n");
+
+ gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30;
+ gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28;
+ gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK);
+
+ __raw_writel(gstatus4, S3C2410_GSTATUS4);
+
+ return s3c_pm_init();
+}
+
+arch_initcall(pm_simtec_init);