115 lines
2.3 KiB
C
115 lines
2.3 KiB
C
/* linux/arch/arm/mach-s5p6440/cpu.c
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*
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* Copyright (c) 2009 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/s5p6440.h>
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static void s5p6440_idle(void)
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{
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unsigned long val;
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if (!need_resched()) {
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val = __raw_readl(S5P_PWR_CFG);
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val &= ~(0x3<<5);
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val |= (0x1<<5);
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__raw_writel(val, S5P_PWR_CFG);
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cpu_do_idle();
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}
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local_irq_enable();
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}
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/* s5p6440_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 s5p6440_map_io(void)
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{
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/* initialize any device information early */
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}
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void __init s5p6440_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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s5p6440_register_clocks();
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s5p6440_setup_clocks();
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}
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void __init s5p6440_init_irq(void)
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{
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/* S5P6440 supports only 2 VIC */
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u32 vic[2];
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/*
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* VIC0 is missing IRQ_VIC0[3, 4, 8, 10, (12-22)]
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* VIC1 is missing IRQ VIC1[1, 3, 4, 10, 11, 12, 14, 15, 22]
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*/
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vic[0] = 0xff800ae7;
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vic[1] = 0xffbf23e5;
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s5p_init_irq(vic, ARRAY_SIZE(vic));
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}
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static struct sysdev_class s5p6440_sysclass = {
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.name = "s5p6440-core",
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};
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static struct sys_device s5p6440_sysdev = {
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.cls = &s5p6440_sysclass,
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};
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static int __init s5p6440_core_init(void)
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{
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return sysdev_class_register(&s5p6440_sysclass);
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}
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core_initcall(s5p6440_core_init);
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int __init s5p6440_init(void)
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{
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printk(KERN_INFO "S5P6440: Initializing architecture\n");
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/* set idle function */
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pm_idle = s5p6440_idle;
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return sysdev_register(&s5p6440_sysdev);
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}
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