diff options
Diffstat (limited to 'kernel/arch/arm/mach-s3c24xx/simtec-pm.c')
-rw-r--r-- | kernel/arch/arm/mach-s3c24xx/simtec-pm.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-s3c24xx/simtec-pm.c b/kernel/arch/arm/mach-s3c24xx/simtec-pm.c new file mode 100644 index 000000000..38a2f1fde --- /dev/null +++ b/kernel/arch/arm/mach-s3c24xx/simtec-pm.c @@ -0,0 +1,67 @@ +/* linux/arch/arm/plat-s3c24xx/pm-simtec.c + * + * Copyright 2004 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * http://armlinux.simtec.co.uk/ + * + * Power Management helpers for Simtec S3C24XX implementations + * + * 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/device.h> +#include <linux/io.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <mach/hardware.h> + +#include <mach/map.h> +#include <mach/regs-gpio.h> + +#include <asm/mach-types.h> + +#include <plat/pm.h> + +#include "regs-mem.h" + +#define COPYRIGHT ", Copyright 2005 Simtec Electronics" + +/* pm_simtec_init + * + * enable the power management functions +*/ + +static __init int pm_simtec_init(void) +{ + unsigned long gstatus4; + + /* check which machine we are running on */ + + if (!machine_is_bast() && !machine_is_vr1000() && + !machine_is_anubis() && !machine_is_osiris() && + !machine_is_aml_m5900()) + return 0; + + printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n"); + + gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30; + gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28; + gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK); + + __raw_writel(gstatus4, S3C2410_GSTATUS4); + + return s3c_pm_init(); +} + +arch_initcall(pm_simtec_init); |