122 lines
2.4 KiB
C
122 lines
2.4 KiB
C
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/* linux/arch/arm/mach-s5p6442/cpu.c
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*
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* Copyright (c) 2010 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/clk.h>
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#include <linux/io.h>
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#include <linux/sysdev.h>
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#include <linux/serial_core.h>
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#include <linux/platform_device.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/proc-fns.h>
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#include <mach/hardware.h>
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#include <mach/map.h>
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#include <asm/irq.h>
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#include <plat/regs-serial.h>
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#include <mach/regs-clock.h>
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#include <plat/cpu.h>
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#include <plat/devs.h>
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#include <plat/clock.h>
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#include <plat/s5p6442.h>
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/* Initial IO mappings */
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static struct map_desc s5p6442_iodesc[] __initdata = {
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{
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.virtual = (unsigned long)S5P_VA_SYSTIMER,
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.pfn = __phys_to_pfn(S5P6442_PA_SYSTIMER),
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.length = SZ_16K,
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.type = MT_DEVICE,
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}, {
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.virtual = (unsigned long)VA_VIC2,
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.pfn = __phys_to_pfn(S5P6442_PA_VIC2),
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.length = SZ_16K,
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.type = MT_DEVICE,
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}
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};
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static void s5p6442_idle(void)
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{
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if (!need_resched())
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cpu_do_idle();
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local_irq_enable();
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}
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/* s5p6442_map_io
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*
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* register the standard cpu IO areas
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*/
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void __init s5p6442_map_io(void)
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{
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iotable_init(s5p6442_iodesc, ARRAY_SIZE(s5p6442_iodesc));
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}
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void __init s5p6442_init_clocks(int xtal)
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{
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printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
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s3c24xx_register_baseclocks(xtal);
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s5p_register_clocks(xtal);
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s5p6442_register_clocks();
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s5p6442_setup_clocks();
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}
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void __init s5p6442_init_irq(void)
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{
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/* S5P6442 supports 3 VIC */
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u32 vic[3];
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/* VIC0, VIC1, and VIC2: some interrupt reserved */
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vic[0] = 0x7fefffff;
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vic[1] = 0X7f389c81;
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vic[2] = 0X1bbbcfff;
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s5p_init_irq(vic, ARRAY_SIZE(vic));
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}
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static struct sysdev_class s5p6442_sysclass = {
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.name = "s5p6442-core",
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};
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static struct sys_device s5p6442_sysdev = {
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.cls = &s5p6442_sysclass,
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};
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static int __init s5p6442_core_init(void)
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{
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return sysdev_class_register(&s5p6442_sysclass);
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}
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core_initcall(s5p6442_core_init);
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int __init s5p6442_init(void)
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{
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printk(KERN_INFO "S5P6442: Initializing architecture\n");
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/* set idle function */
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pm_idle = s5p6442_idle;
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return sysdev_register(&s5p6442_sysdev);
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}
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