Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "New and updated SoC support.  Also included are some cleanups where
  the platform maintainers hadn't separated cleanups from new developent
  in separate branches.

  Some of the larger things worth pointing out:

   - A large set of changes from Alexandre Belloni and Nicolas Ferre
     preparing at91 platforms for multiplatform and cleaning up quite a
     bit in the process.

   - Removal of CSR's "Marco" SoC platform that never made it out to the
     market.  We love seeing these since it means the vendor published
     support before product was out, which is exactly what we want!

  New platforms this release are:

   - Conexant Digicolor (CX92755 SoC)
   - Hisilicon HiP01 SoC
   - CSR/sirf Atlas7 SoC
   - ST STiH418 SoC
   - Common code changes for Nvidia Tegra132 (64-bit SoC)

  We're seeing more and more platforms having a harder time labelling
  changes as cleanups vs new development -- which is a good sign that
  we've come quite far on the cleanup effort.  So over time we might
  start combining the cleanup and new-development branches more"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (124 commits)
  ARM: at91/trivial: unify functions and machine names
  ARM: at91: remove at91_dt_initialize and machine init_early()
  ARM: at91: change board files into SoC files
  ARM: at91: remove at91_boot_soc
  ARM: at91: move alternative initial mapping to board-dt-sama5.c
  ARM: at91: merge all SOC_AT91SAM9xxx
  ARM: at91: at91rm9200: set idle and restart from rm9200_dt_device_init()
  ARM: digicolor: select syscon and timer
  ARM: zynq: Simplify SLCR initialization
  ARM: zynq: PM: Fixed simple typo.
  ARM: zynq: Setup default gpio number for Xilinx Zynq
  ARM: digicolor: add low level debug support
  ARM: initial support for Conexant Digicolor CX92755 SoC
  ARM: OMAP2+: Add dm816x hwmod support
  ARM: OMAP2+: Add clock domain support for dm816x
  ARM: OMAP2+: Add board-generic.c entry for ti81xx
  ARM: at91: pm: remove warning to remove SOC_AT91SAM9263 usage
  ARM: at91: remove unused mach/system_rev.h
  ARM: at91: stop using HAVE_AT91_DBGUx
  ARM: at91: fix ordering of SRAM and PM initialization
  ...

1 files changed, 77 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 342797b9bf3b..82e6b6fba23f 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -86,6 +86,12 @@ static unsigned int exynos_pmu_spare3;
 
 static u32 exynos_irqwake_intmask = 0xffffffff;
 
+static const struct exynos_wkup_irq exynos3250_wkup_irq[] = {
+	{ 73, BIT(1) }, /* RTC alarm */
+	{ 74, BIT(2) }, /* RTC tick */
+	{ /* sentinel */ },
+};
+
 static const struct exynos_wkup_irq exynos4_wkup_irq[] = {
 	{ 76, BIT(1) }, /* RTC alarm */
 	{ 77, BIT(2) }, /* RTC tick */
@@ -109,6 +115,19 @@ unsigned int exynos_release_ret_regs[] = {
 	REG_TABLE_END,
 };
 
+unsigned int exynos3250_release_ret_regs[] = {
+	S5P_PAD_RET_MAUDIO_OPTION,
+	S5P_PAD_RET_GPIO_OPTION,
+	S5P_PAD_RET_UART_OPTION,
+	S5P_PAD_RET_MMCA_OPTION,
+	S5P_PAD_RET_MMCB_OPTION,
+	S5P_PAD_RET_EBIA_OPTION,
+	S5P_PAD_RET_EBIB_OPTION,
+	S5P_PAD_RET_MMC2_OPTION,
+	S5P_PAD_RET_SPI_OPTION,
+	REG_TABLE_END,
+};
+
 unsigned int exynos5420_release_ret_regs[] = {
 	EXYNOS_PAD_RET_DRAM_OPTION,
 	EXYNOS_PAD_RET_MAUDIO_OPTION,
@@ -168,6 +187,12 @@ static int exynos_cpu_suspend(unsigned long arg)
 	return exynos_cpu_do_idle();
 }
 
+static int exynos3250_cpu_suspend(unsigned long arg)
+{
+	flush_cache_all();
+	return exynos_cpu_do_idle();
+}
+
 static int exynos5420_cpu_suspend(unsigned long arg)
 {
 	/* MCPM works with HW CPU identifiers */
@@ -225,6 +250,23 @@ static void exynos_pm_prepare(void)
 	pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
 }
 
+static void exynos3250_pm_prepare(void)
+{
+	unsigned int tmp;
+
+	/* Set wake-up mask registers */
+	exynos_pm_set_wakeup_mask();
+
+	tmp = pmu_raw_readl(EXYNOS3_ARM_L2_OPTION);
+	tmp &= ~EXYNOS5_OPTION_USE_RETENTION;
+	pmu_raw_writel(tmp, EXYNOS3_ARM_L2_OPTION);
+
+	exynos_pm_enter_sleep_mode();
+
+	/* ensure at least INFORM0 has the resume address */
+	pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+}
+
 static void exynos5420_pm_prepare(void)
 {
 	unsigned int tmp;
@@ -339,6 +381,28 @@ early_wakeup:
 	pmu_raw_writel(0x0, S5P_INFORM1);
 }
 
+static void exynos3250_pm_resume(void)
+{
+	u32 cpuid = read_cpuid_part();
+
+	if (exynos_pm_central_resume())
+		goto early_wakeup;
+
+	/* For release retention */
+	exynos_pm_release_retention();
+
+	pmu_raw_writel(S5P_USE_STANDBY_WFI_ALL, S5P_CENTRAL_SEQ_OPTION);
+
+	if (call_firmware_op(resume) == -ENOSYS
+	    && cpuid == ARM_CPU_PART_CORTEX_A9)
+		exynos_cpu_restore_register();
+
+early_wakeup:
+
+	/* Clear SLEEP mode set in INFORM1 */
+	pmu_raw_writel(0x0, S5P_INFORM1);
+}
+
 static void exynos5420_prepare_pm_resume(void)
 {
 	if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM))
@@ -478,6 +542,16 @@ static const struct platform_suspend_ops exynos_suspend_ops = {
 	.valid		= suspend_valid_only_mem,
 };
 
+static const struct exynos_pm_data exynos3250_pm_data = {
+	.wkup_irq	= exynos3250_wkup_irq,
+	.wake_disable_mask = ((0xFF << 8) | (0x1F << 1)),
+	.release_ret_regs = exynos3250_release_ret_regs,
+	.pm_suspend	= exynos_pm_suspend,
+	.pm_resume	= exynos3250_pm_resume,
+	.pm_prepare	= exynos3250_pm_prepare,
+	.cpu_suspend	= exynos3250_cpu_suspend,
+};
+
 static const struct exynos_pm_data exynos4_pm_data = {
 	.wkup_irq	= exynos4_wkup_irq,
 	.wake_disable_mask = ((0xFF << 8) | (0x1F << 1)),
@@ -511,6 +585,9 @@ static struct exynos_pm_data exynos5420_pm_data = {
 
 static struct of_device_id exynos_pmu_of_device_ids[] = {
 	{
+		.compatible = "samsung,exynos3250-pmu",
+		.data = &exynos3250_pm_data,
+	}, {
 		.compatible = "samsung,exynos4210-pmu",
 		.data = &exynos4_pm_data,
 	}, {