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-rw-r--r--arch/arm/mach-s5pv210/cpu.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c
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index 00000000000..0e0f8fde2aa
--- /dev/null
+++ b/arch/arm/mach-s5pv210/cpu.c
@@ -0,0 +1,126 @@
+/* linux/arch/arm/mach-s5pv210/cpu.c
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/proc-fns.h>
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/s5pv210.h>
+
+/* Initial IO mappings */
+
+static struct map_desc s5pv210_iodesc[] __initdata = {
+ {
+ .virtual = (unsigned long)S5P_VA_SYSTIMER,
+ .pfn = __phys_to_pfn(S5PV210_PA_SYSTIMER),
+ .length = SZ_1M,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)VA_VIC2,
+ .pfn = __phys_to_pfn(S5PV210_PA_VIC2),
+ .length = SZ_16K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)VA_VIC3,
+ .pfn = __phys_to_pfn(S5PV210_PA_VIC3),
+ .length = SZ_16K,
+ .type = MT_DEVICE,
+ }, {
+ .virtual = (unsigned long)S5P_VA_SROMC,
+ .pfn = __phys_to_pfn(S5PV210_PA_SROMC),
+ .length = SZ_4K,
+ .type = MT_DEVICE,
+ }
+};
+
+static void s5pv210_idle(void)
+{
+ if (!need_resched())
+ cpu_do_idle();
+
+ local_irq_enable();
+}
+
+/* s5pv210_map_io
+ *
+ * register the standard cpu IO areas
+*/
+
+void __init s5pv210_map_io(void)
+{
+ iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc));
+}
+
+void __init s5pv210_init_clocks(int xtal)
+{
+ printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+ s3c24xx_register_baseclocks(xtal);
+ s5p_register_clocks(xtal);
+ s5pv210_register_clocks();
+ s5pv210_setup_clocks();
+}
+
+void __init s5pv210_init_irq(void)
+{
+ u32 vic[4]; /* S5PV210 supports 4 VIC */
+
+ /* All the VICs are fully populated. */
+ vic[0] = ~0;
+ vic[1] = ~0;
+ vic[2] = ~0;
+ vic[3] = ~0;
+
+ s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+static struct sysdev_class s5pv210_sysclass = {
+ .name = "s5pv210-core",
+};
+
+static struct sys_device s5pv210_sysdev = {
+ .cls = &s5pv210_sysclass,
+};
+
+static int __init s5pv210_core_init(void)
+{
+ return sysdev_class_register(&s5pv210_sysclass);
+}
+
+core_initcall(s5pv210_core_init);
+
+int __init s5pv210_init(void)
+{
+ printk(KERN_INFO "S5PV210: Initializing architecture\n");
+
+ /* set idle function */
+ pm_idle = s5pv210_idle;
+
+ return sysdev_register(&s5pv210_sysdev);
+}