[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/arch/arm/mach-s5pv210/pm.c b/src/kernel/linux/v4.14/arch/arm/mach-s5pv210/pm.c
new file mode 100644
index 0000000..07cee14
--- /dev/null
+++ b/src/kernel/linux/v4.14/arch/arm/mach-s5pv210/pm.c
@@ -0,0 +1,172 @@
+/* linux/arch/arm/mach-s5pv210/pm.c
+ *
+ * Copyright (c) 2010-2014 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * S5PV210 - Power Management support
+ *
+ * Based on arch/arm/mach-s3c2410/pm.c
+ * Copyright (c) 2006 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * 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/init.h>
+#include <linux/suspend.h>
+#include <linux/syscore_ops.h>
+#include <linux/io.h>
+
+#include <asm/cacheflush.h>
+#include <asm/suspend.h>
+
+#include <plat/pm-common.h>
+
+#include "common.h"
+#include "regs-clock.h"
+
+static struct sleep_save s5pv210_core_save[] = {
+ /* Clock ETC */
+ SAVE_ITEM(S5P_MDNIE_SEL),
+};
+
+/*
+ * VIC wake-up support (TODO)
+ */
+static u32 s5pv210_irqwake_intmask = 0xffffffff;
+
+/*
+ * Suspend helpers.
+ */
+static int s5pv210_cpu_suspend(unsigned long arg)
+{
+ unsigned long tmp;
+
+ /* issue the standby signal into the pm unit. Note, we
+ * issue a write-buffer drain just in case */
+
+ tmp = 0;
+
+ asm("b 1f\n\t"
+ ".align 5\n\t"
+ "1:\n\t"
+ "mcr p15, 0, %0, c7, c10, 5\n\t"
+ "mcr p15, 0, %0, c7, c10, 4\n\t"
+ "wfi" : : "r" (tmp));
+
+ pr_info("Failed to suspend the system\n");
+ return 1; /* Aborting suspend */
+}
+
+static void s5pv210_pm_prepare(void)
+{
+ unsigned int tmp;
+
+ /* Set wake-up mask registers */
+ __raw_writel(exynos_get_eint_wake_mask(), S5P_EINT_WAKEUP_MASK);
+ __raw_writel(s5pv210_irqwake_intmask, S5P_WAKEUP_MASK);
+
+ /* ensure at least INFORM0 has the resume address */
+ __raw_writel(__pa_symbol(s5pv210_cpu_resume), S5P_INFORM0);
+
+ tmp = __raw_readl(S5P_SLEEP_CFG);
+ tmp &= ~(S5P_SLEEP_CFG_OSC_EN | S5P_SLEEP_CFG_USBOSC_EN);
+ __raw_writel(tmp, S5P_SLEEP_CFG);
+
+ /* WFI for SLEEP mode configuration by SYSCON */
+ tmp = __raw_readl(S5P_PWR_CFG);
+ tmp &= S5P_CFG_WFI_CLEAN;
+ tmp |= S5P_CFG_WFI_SLEEP;
+ __raw_writel(tmp, S5P_PWR_CFG);
+
+ /* SYSCON interrupt handling disable */
+ tmp = __raw_readl(S5P_OTHERS);
+ tmp |= S5P_OTHER_SYSC_INTOFF;
+ __raw_writel(tmp, S5P_OTHERS);
+
+ s3c_pm_do_save(s5pv210_core_save, ARRAY_SIZE(s5pv210_core_save));
+}
+
+/*
+ * Suspend operations.
+ */
+static int s5pv210_suspend_enter(suspend_state_t state)
+{
+ int ret;
+
+ s3c_pm_debug_init();
+
+ S3C_PMDBG("%s: suspending the system...\n", __func__);
+
+ S3C_PMDBG("%s: wakeup masks: %08x,%08x\n", __func__,
+ s5pv210_irqwake_intmask, exynos_get_eint_wake_mask());
+
+ if (s5pv210_irqwake_intmask == -1U
+ && exynos_get_eint_wake_mask() == -1U) {
+ pr_err("%s: No wake-up sources!\n", __func__);
+ pr_err("%s: Aborting sleep\n", __func__);
+ return -EINVAL;
+ }
+
+ s3c_pm_save_uarts();
+ s5pv210_pm_prepare();
+ flush_cache_all();
+ s3c_pm_check_store();
+
+ ret = cpu_suspend(0, s5pv210_cpu_suspend);
+ if (ret)
+ return ret;
+
+ s3c_pm_restore_uarts();
+
+ S3C_PMDBG("%s: wakeup stat: %08x\n", __func__,
+ __raw_readl(S5P_WAKEUP_STAT));
+
+ s3c_pm_check_restore();
+
+ S3C_PMDBG("%s: resuming the system...\n", __func__);
+
+ return 0;
+}
+
+static int s5pv210_suspend_prepare(void)
+{
+ s3c_pm_check_prepare();
+
+ return 0;
+}
+
+static void s5pv210_suspend_finish(void)
+{
+ s3c_pm_check_cleanup();
+}
+
+static const struct platform_suspend_ops s5pv210_suspend_ops = {
+ .enter = s5pv210_suspend_enter,
+ .prepare = s5pv210_suspend_prepare,
+ .finish = s5pv210_suspend_finish,
+ .valid = suspend_valid_only_mem,
+};
+
+/*
+ * Syscore operations used to delay restore of certain registers.
+ */
+static void s5pv210_pm_resume(void)
+{
+ s3c_pm_do_restore_core(s5pv210_core_save, ARRAY_SIZE(s5pv210_core_save));
+}
+
+static struct syscore_ops s5pv210_pm_syscore_ops = {
+ .resume = s5pv210_pm_resume,
+};
+
+/*
+ * Initialization entry point.
+ */
+void __init s5pv210_pm_init(void)
+{
+ register_syscore_ops(&s5pv210_pm_syscore_ops);
+ suspend_set_ops(&s5pv210_suspend_ops);
+}