ARM: S5P64X0: Add S5P64X0(S5P6440 and S5P6450) initialization support

This patch adds ARCH_S5P64X0 which can support S5P6440 and S5P6450 with
one kernel image. So moved some files of mach-s5p6440 into the new ARCH
directory mach-s5p64x0.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 208 insertions, 0 deletions

diff --git a/arch/arm/mach-s5p64x0/cpu.c b/arch/arm/mach-s5p64x0/cpu.c
new file mode 100644
index 000000000000..fb90a3004e98
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/cpu.c
@@ -0,0 +1,208 @@
+/* linux/arch/arm/mach-s5p64x0/cpu.c
+ *
+ * Copyright (c) 2009-2010 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 <asm/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+#include <mach/regs-clock.h>
+
+#include <plat/regs-serial.h>
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/s5p6440.h>
+#include <plat/s5p6450.h>
+#include <plat/adc-core.h>
+
+/* Initial IO mappings */
+
+static struct map_desc s5p64x0_iodesc[] __initdata = {
+	{
+		.virtual	= (unsigned long)S5P_VA_GPIO,
+		.pfn		= __phys_to_pfn(S5P64X0_PA_GPIO),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)VA_VIC0,
+		.pfn		= __phys_to_pfn(S5P64X0_PA_VIC0),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)VA_VIC1,
+		.pfn		= __phys_to_pfn(S5P64X0_PA_VIC1),
+		.length		= SZ_16K,
+		.type		= MT_DEVICE,
+	},
+};
+
+static struct map_desc s5p6440_iodesc[] __initdata = {
+	{
+		.virtual	= (unsigned long)S3C_VA_UART,
+		.pfn		= __phys_to_pfn(S5P6440_PA_UART(0)),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	},
+};
+
+static struct map_desc s5p6450_iodesc[] __initdata = {
+	{
+		.virtual	= (unsigned long)S3C_VA_UART,
+		.pfn		= __phys_to_pfn(S5P6450_PA_UART(0)),
+		.length		= SZ_512K,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= (unsigned long)S3C_VA_UART + SZ_512K,
+		.pfn		= __phys_to_pfn(S5P6450_PA_UART(5)),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	},
+};
+
+static void s5p64x0_idle(void)
+{
+	unsigned long val;
+
+	if (!need_resched()) {
+		val = __raw_readl(S5P64X0_PWR_CFG);
+		val &= ~(0x3 << 5);
+		val |= (0x1 << 5);
+		__raw_writel(val, S5P64X0_PWR_CFG);
+
+		cpu_do_idle();
+	}
+	local_irq_enable();
+}
+
+/*
+ * s5p64x0_map_io
+ *
+ * register the standard CPU IO areas
+ */
+
+void __init s5p6440_map_io(void)
+{
+	/* initialize any device information early */
+	s3c_adc_setname("s3c64x0-adc");
+
+	iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
+	iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc));
+}
+
+void __init s5p6450_map_io(void)
+{
+	/* initialize any device information early */
+	s3c_adc_setname("s3c64x0-adc");
+
+	iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc));
+	iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6440_iodesc));
+}
+
+/*
+ * s5p64x0_init_clocks
+ *
+ * register and setup the CPU clocks
+ */
+
+void __init s5p6440_init_clocks(int xtal)
+{
+	printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+	s3c24xx_register_baseclocks(xtal);
+	s5p_register_clocks(xtal);
+	s5p6440_register_clocks();
+	s5p6440_setup_clocks();
+}
+
+void __init s5p6450_init_clocks(int xtal)
+{
+	printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+	s3c24xx_register_baseclocks(xtal);
+	s5p_register_clocks(xtal);
+	s5p6450_register_clocks();
+	s5p6450_setup_clocks();
+}
+
+/*
+ * s5p64x0_init_irq
+ *
+ * register the CPU interrupts
+ */
+
+void __init s5p6440_init_irq(void)
+{
+	/* S5P6440 supports 2 VIC */
+	u32 vic[2];
+
+	/*
+	 * VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
+	 * VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
+	 */
+	vic[0] = 0xff800ae7;
+	vic[1] = 0xffbf23e5;
+
+	s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+void __init s5p6450_init_irq(void)
+{
+	/* S5P6450 supports only 2 VIC */
+	u32 vic[2];
+
+	/*
+	 * VIC0 is missing IRQ_VIC0[(13-15), (21-22)]
+	 * VIC1 is missing IRQ VIC1[12, 14, 23]
+	 */
+	vic[0] = 0xff9f1fff;
+	vic[1] = 0xff7fafff;
+
+	s5p_init_irq(vic, ARRAY_SIZE(vic));
+}
+
+struct sysdev_class s5p64x0_sysclass = {
+	.name	= "s5p64x0-core",
+};
+
+static struct sys_device s5p64x0_sysdev = {
+	.cls	= &s5p64x0_sysclass,
+};
+
+static int __init s5p64x0_core_init(void)
+{
+	return sysdev_class_register(&s5p64x0_sysclass);
+}
+core_initcall(s5p64x0_core_init);
+
+int __init s5p64x0_init(void)
+{
+	printk(KERN_INFO "S5P64X0(S5P6440/S5P6450): Initializing architecture\n");
+
+	/* set idle function */
+	pm_idle = s5p64x0_idle;
+
+	return sysdev_register(&s5p64x0_sysdev);
+}