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authorArnd Bergmann <arnd@arndb.de>2019-09-02 17:47:55 +0200
committerKrzysztof Kozlowski <krzk@kernel.org>2020-08-20 21:00:15 +0200
commit71b9114d2c13a648fbe6523dd859e611c316ad90 (patch)
treec380a723099f776736779319be913f8c0900989e /arch/arm/mach-s3c24xx/pm-s3c2410.c
parenta3814e55b411e8cdb352637c65925f60b9ac15cc (diff)
ARM: s3c: move into a common directory
s3c24xx and s3c64xx have a lot in common, but are split across three separate directories, which makes the interaction of the header files more complicated than necessary. Move all three directories into a new mach-s3c, with a minimal set of changes to each file. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX headers to new files, remove plat-samsung from MAINTAINERS] Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org
Diffstat (limited to 'arch/arm/mach-s3c24xx/pm-s3c2410.c')
-rw-r--r--arch/arm/mach-s3c24xx/pm-s3c2410.c170
1 files changed, 0 insertions, 170 deletions
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2410.c b/arch/arm/mach-s3c24xx/pm-s3c2410.c
deleted file mode 100644
index ffd0d6c2324f..000000000000
--- a/arch/arm/mach-s3c24xx/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 <mach/regs-gpio.h>
-#include <mach/gpio-samsung.h>
-
-#include <plat/gpio-cfg.h>
-#include <plat/cpu.h>
-#include <plat/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