1 files changed, 121 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p6442/cpu.c b/arch/arm/mach-s5p6442/cpu.c
new file mode 100644
index 000000000000..bc2524df89b3
--- /dev/null
+++ b/arch/arm/mach-s5p6442/cpu.c
@@ -0,0 +1,121 @@
+/* linux/arch/arm/mach-s5p6442/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/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.h>
+#include <linux/serial_core.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/hardware.h>
+#include <mach/map.h>
+#include <asm/irq.h>
+
+#include <plat/regs-serial.h>
+#include <mach/regs-clock.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/s5p6442.h>
+
+/* Initial IO mappings */
+
+static struct map_desc s5p6442_iodesc[] __initdata = {
+        {
+                .virtual        = (unsigned long)S5P_VA_SYSTIMER,
+                .pfn            = __phys_to_pfn(S5P6442_PA_SYSTIMER),
+                .length         = SZ_16K,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = (unsigned long)VA_VIC2,
+                .pfn            = __phys_to_pfn(S5P6442_PA_VIC2),
+                .length         = SZ_16K,
+                .type           = MT_DEVICE,
+        }
+};
+
+static void s5p6442_idle(void)
+{
+        if (!need_resched())
+                cpu_do_idle();
+
+        local_irq_enable();
+}
+
+/* s5p6442_map_io
+ *
+ * register the standard cpu IO areas
+*/
+
+void __init s5p6442_map_io(void)
+{
+        iotable_init(s5p6442_iodesc, ARRAY_SIZE(s5p6442_iodesc));
+}
+
+void __init s5p6442_init_clocks(int xtal)
+{
+        printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+        s3c24xx_register_baseclocks(xtal);
+        s5p_register_clocks(xtal);
+        s5p6442_register_clocks();
+        s5p6442_setup_clocks();
+}
+
+void __init s5p6442_init_irq(void)
+{
+        /* S5P6442 supports 3 VIC */
+        u32 vic[3];
+
+        /* VIC0, VIC1, and VIC2: some interrupt reserved */
+        vic[0] = 0x7fefffff;
+        vic[1] = 0X7f389c81;
+        vic[2] = 0X1bbbcfff;
+
+        s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+static struct sysdev_class s5p6442_sysclass = {
+        .name   = "s5p6442-core",
+};
+
+static struct sys_device s5p6442_sysdev = {
+        .cls    = &s5p6442_sysclass,
+};
+
+static int __init s5p6442_core_init(void)
+{
+        return sysdev_class_register(&s5p6442_sysclass);
+}
+
+core_initcall(s5p6442_core_init);
+
+int __init s5p6442_init(void)
+{
+        printk(KERN_INFO "S5P6442: Initializing architecture\n");
+
+        /* set idle function */
+        pm_idle = s5p6442_idle;
+
+        return sysdev_register(&s5p6442_sysdev);
+}