1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Copyright 2004 Simtec Electronics 4 // Ben Dooks <ben@simtec.co.uk> 5 // 6 // http://armlinux.simtec.co.uk/ 7 // 8 // Power Management helpers for Simtec S3C24XX implementations 9 10 #include <linux/kernel.h> 11 #include <linux/types.h> 12 #include <linux/interrupt.h> 13 #include <linux/list.h> 14 #include <linux/timer.h> 15 #include <linux/init.h> 16 #include <linux/device.h> 17 #include <linux/io.h> 18 19 #include <asm/mach/arch.h> 20 #include <asm/mach/map.h> 21 22 #include "map.h" 23 #include "regs-gpio.h" 24 25 #include <asm/mach-types.h> 26 27 #include "pm.h" 28 29 #include "regs-mem-s3c24xx.h" 30 31 #define COPYRIGHT ", Copyright 2005 Simtec Electronics" 32 33 /* pm_simtec_init 34 * 35 * enable the power management functions 36 */ 37 pm_simtec_init(void)38static __init int pm_simtec_init(void) 39 { 40 unsigned long gstatus4; 41 42 /* check which machine we are running on */ 43 44 if (!machine_is_bast() && !machine_is_vr1000() && 45 !machine_is_anubis() && !machine_is_osiris() && 46 !machine_is_aml_m5900()) 47 return 0; 48 49 printk(KERN_INFO "Simtec Board Power Management" COPYRIGHT "\n"); 50 51 gstatus4 = (__raw_readl(S3C2410_BANKCON7) & 0x3) << 30; 52 gstatus4 |= (__raw_readl(S3C2410_BANKCON6) & 0x3) << 28; 53 gstatus4 |= (__raw_readl(S3C2410_BANKSIZE) & S3C2410_BANKSIZE_MASK); 54 55 __raw_writel(gstatus4, S3C2410_GSTATUS4); 56 57 return s3c_pm_init(); 58 } 59 60 arch_initcall(pm_simtec_init); 61