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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-12 16:00:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-12 16:00:54 -0800
commitdca1d9f6d7ae428c193f32bd3e9a4ca13176648b (patch)
tree02de8c3503c1c811754423d2fa3f3b4978044f6e /arch/arm/mach-s5p6442/cpu.c
parent9ff99339447de403a46be5e3f23d0c794d540b06 (diff)
parent91e013827c0bcbb187ecf02213c5446b6f62d445 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (370 commits) ARM: S3C2443: Add set_rate and round_rate calls for armdiv clock ARM: S3C2443: Remove #if 0 for clk_mpll ARM: S3C2443: Update notes on MPLLREF clock ARM: S3C2443: Further clksrc-clk conversions ARM: S3C2443: Change to using plat-samsung clksrc-clk implementation USB: Fix s3c-hsotg build following Samsung platform header moves ARM: S3C64XX: Reintroduce unconditional build of audio device ARM: 5961/1: ux500: fix CLKRST addresses ARM: 5977/1: arm: Enable backtrace printing on oops when PC is corrupted ASoC: Fix S3C64xx IIS driver for Samsung header reorg ARM: S3C2440: Fix plat-s3c24xx move of s3c2440/s3c2442 support [ARM] pxa: fix typo in mxm8x10.h [ARM] pxa/raumfeld: set GPIO drive bits for LED pins [ARM] pxa/zeus: Add support for mcp2515 CAN bus [ARM] pxa/zeus: Add support for onboard max6369 watchdog [ARM] pxa/zeus: Add Eurotech as the manufacturer [ARM] pxa/zeus: Correct the USB host initialisation flags [ARM] pxa/zeus: Allow usage of 8250-compatible UART in uncompress [ARM] pxa: refactor uncompress.h for non-PXA uarts [ARM] mmp2: fix incorrect calling of chip->mask_ack() for 2nd level cascaded IRQs ...
Diffstat (limited to 'arch/arm/mach-s5p6442/cpu.c')
-rw-r--r--arch/arm/mach-s5p6442/cpu.c121
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 00000000000..bc2524df89b
--- /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);
+}