diff options
Diffstat (limited to 'arch/arm/mach-s3c/pm-s3c2410.c')
| -rw-r--r-- | arch/arm/mach-s3c/pm-s3c2410.c | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/arch/arm/mach-s3c/pm-s3c2410.c b/arch/arm/mach-s3c/pm-s3c2410.c deleted file mode 100644 index a66419883735..000000000000 --- a/arch/arm/mach-s3c/pm-s3c2410.c +++ /dev/null @@ -1,170 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// Copyright (c) 2006 Simtec Electronics -// Ben Dooks <ben@simtec.co.uk> -// -// S3C2410 (and compatible) Power Manager (Suspend-To-RAM) support - -#include <linux/init.h> -#include <linux/suspend.h> -#include <linux/errno.h> -#include <linux/time.h> -#include <linux/device.h> -#include <linux/syscore_ops.h> -#include <linux/gpio.h> -#include <linux/io.h> - -#include <asm/mach-types.h> - -#include "regs-gpio.h" -#include "gpio-samsung.h" - -#include "gpio-cfg.h" -#include "cpu.h" -#include "pm.h" - -#include "h1940.h" - -static void s3c2410_pm_prepare(void) -{ - /* ensure at least GSTATUS3 has the resume address */ - - __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2410_GSTATUS3); - - S3C_PMDBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3)); - S3C_PMDBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4)); - - if (machine_is_h1940()) { - void *base = phys_to_virt(H1940_SUSPEND_CHECK); - unsigned long ptr; - unsigned long calc = 0; - - /* generate check for the bootloader to check on resume */ - - for (ptr = 0; ptr < 0x40000; ptr += 0x400) - calc += __raw_readl(base+ptr); - - __raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM)); - } - - /* RX3715 and RX1950 use similar to H1940 code and the - * same offsets for resume and checksum pointers */ - - if (machine_is_rx3715() || machine_is_rx1950()) { - void *base = phys_to_virt(H1940_SUSPEND_CHECK); - unsigned long ptr; - unsigned long calc = 0; - - /* generate check for the bootloader to check on resume */ - - for (ptr = 0; ptr < 0x40000; ptr += 0x4) - calc += __raw_readl(base+ptr); - - __raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM)); - } - - if (machine_is_aml_m5900()) { - gpio_request_one(S3C2410_GPF(2), GPIOF_OUT_INIT_HIGH, NULL); - gpio_free(S3C2410_GPF(2)); - } - - if (machine_is_rx1950()) { - /* According to S3C2442 user's manual, page 7-17, - * when the system is operating in NAND boot mode, - * the hardware pin configuration - EINT[23:21] – - * must be set as input for starting up after - * wakeup from sleep mode - */ - s3c_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPIO_INPUT); - s3c_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPIO_INPUT); - s3c_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPIO_INPUT); - } -} - -static void s3c2410_pm_resume(void) -{ - unsigned long tmp; - - /* unset the return-from-sleep flag, to ensure reset */ - - tmp = __raw_readl(S3C2410_GSTATUS2); - tmp &= S3C2410_GSTATUS2_OFFRESET; - __raw_writel(tmp, S3C2410_GSTATUS2); - - if (machine_is_aml_m5900()) { - gpio_request_one(S3C2410_GPF(2), GPIOF_OUT_INIT_LOW, NULL); - gpio_free(S3C2410_GPF(2)); - } -} - -struct syscore_ops s3c2410_pm_syscore_ops = { - .resume = s3c2410_pm_resume, -}; - -static int s3c2410_pm_add(struct device *dev, struct subsys_interface *sif) -{ - pm_cpu_prep = s3c2410_pm_prepare; - pm_cpu_sleep = s3c2410_cpu_suspend; - - return 0; -} - -#if defined(CONFIG_CPU_S3C2410) -static struct subsys_interface s3c2410_pm_interface = { - .name = "s3c2410_pm", - .subsys = &s3c2410_subsys, - .add_dev = s3c2410_pm_add, -}; - -/* register ourselves */ - -static int __init s3c2410_pm_drvinit(void) -{ - return subsys_interface_register(&s3c2410_pm_interface); -} - -arch_initcall(s3c2410_pm_drvinit); - -static struct subsys_interface s3c2410a_pm_interface = { - .name = "s3c2410a_pm", - .subsys = &s3c2410a_subsys, - .add_dev = s3c2410_pm_add, -}; - -static int __init s3c2410a_pm_drvinit(void) -{ - return subsys_interface_register(&s3c2410a_pm_interface); -} - -arch_initcall(s3c2410a_pm_drvinit); -#endif - -#if defined(CONFIG_CPU_S3C2440) -static struct subsys_interface s3c2440_pm_interface = { - .name = "s3c2440_pm", - .subsys = &s3c2440_subsys, - .add_dev = s3c2410_pm_add, -}; - -static int __init s3c2440_pm_drvinit(void) -{ - return subsys_interface_register(&s3c2440_pm_interface); -} - -arch_initcall(s3c2440_pm_drvinit); -#endif - -#if defined(CONFIG_CPU_S3C2442) -static struct subsys_interface s3c2442_pm_interface = { - .name = "s3c2442_pm", - .subsys = &s3c2442_subsys, - .add_dev = s3c2410_pm_add, -}; - -static int __init s3c2442_pm_drvinit(void) -{ - return subsys_interface_register(&s3c2442_pm_interface); -} - -arch_initcall(s3c2442_pm_drvinit); -#endif |