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

Pull ARM SoC cleanup from Olof Johansson:
 "Here is a collection of cleanup patches.  Among the pieces that stand
  out are:

   - The deletion of h720x platforms
   - Split of at91 non-dt platforms to their own Kconfig file to keep
     them separate
   - General cleanups and refactoring of i.MX and MXS platforms
   - Some restructuring of clock tables for OMAP
   - Convertion of PMC driver for Tegra to dt-only
   - Some renames of sunxi -> sun4i (Allwinner A10)
   - ... plus a bunch of other stuff that I haven't mentioned"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
  ARM: i.MX: remove unused ARCH_* configs
  ARM i.MX53: remove platform ahci support
  ARM: sunxi: Rework the restart code
  irqchip: sunxi: Rename sunxi to sun4i
  irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro
  clocksource: sunxi: Rename sunxi to sun4i
  clocksource: sunxi: make use of CLKSRC_OF
  clocksource: sunxi: Cleanup the timer code
  ARM: at91: remove trailing semicolon from macros
  ARM: at91/setup: fix trivial typos
  ARM: EXYNOS: remove "config EXYNOS_DEV_DRM"
  ARM: EXYNOS: change the name of USB ohci header
  ARM: SAMSUNG: Remove unnecessary code for dma
  ARM: S3C24XX: Remove unused GPIO drive strength register definitions
  ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force wakeup method
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2412
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2410
  ARM: S3C24XX: Removed unneeded dependency on ARCH_S3C24XX for boards
  ARM: SAMSUNG: Fix typo "CONFIG_SAMSUNG_DEV_RTC"
  ARM: S5P64X0: Fix typo "CONFIG_S5P64X0_SETUP_SDHCI"
  ...

1 files changed, 44 insertions, 74 deletions

diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index e78d52d83acd..c31db797e199 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -18,7 +18,6 @@
 #include <linux/jiffies.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
 #include <linux/clk/tegra.h>
 
 #include <asm/cacheflush.h>
@@ -26,53 +25,58 @@
 #include <asm/smp_scu.h>
 #include <asm/smp_plat.h>
 
-#include <mach/powergate.h>
-
 #include "fuse.h"
 #include "flowctrl.h"
 #include "reset.h"
+#include "pmc.h"
 
 #include "common.h"
 #include "iomap.h"
 
-extern void tegra_secondary_startup(void);
-
 static cpumask_t tegra_cpu_init_mask;
 
-#define EVP_CPU_RESET_VECTOR \
-	(IO_ADDRESS(TEGRA_EXCEPTION_VECTORS_BASE) + 0x100)
-
 static void __cpuinit tegra_secondary_init(unsigned int cpu)
 {
-	/*
-	 * if any interrupts are already enabled for the primary
-	 * core (e.g. timer irq), then they will not have been enabled
-	 * for us: do so
-	 */
-	gic_secondary_init(0);
-
 	cpumask_set_cpu(cpu, &tegra_cpu_init_mask);
 }
 
-static int tegra20_power_up_cpu(unsigned int cpu)
+
+static int tegra20_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	/* Enable the CPU clock. */
-	tegra_enable_cpu_clock(cpu);
+	cpu = cpu_logical_map(cpu);
 
-	/* Clear flow controller CSR. */
-	flowctrl_write_cpu_csr(cpu, 0);
+	/*
+	 * Force the CPU into reset. The CPU must remain in reset when
+	 * the flow controller state is cleared (which will cause the
+	 * flow controller to stop driving reset if the CPU has been
+	 * power-gated via the flow controller). This will have no
+	 * effect on first boot of the CPU since it should already be
+	 * in reset.
+	 */
+	tegra_put_cpu_in_reset(cpu);
 
+	/*
+	 * Unhalt the CPU. If the flow controller was used to
+	 * power-gate the CPU this will cause the flow controller to
+	 * stop driving reset. The CPU will remain in reset because the
+	 * clock and reset block is now driving reset.
+	 */
+	flowctrl_write_cpu_halt(cpu, 0);
+
+	tegra_enable_cpu_clock(cpu);
+	flowctrl_write_cpu_csr(cpu, 0); /* Clear flow controller CSR. */
+	tegra_cpu_out_of_reset(cpu);
 	return 0;
 }
 
-static int tegra30_power_up_cpu(unsigned int cpu)
+static int tegra30_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	int ret, pwrgateid;
+	int ret;
 	unsigned long timeout;
 
-	pwrgateid = tegra_cpu_powergate_id(cpu);
-	if (pwrgateid < 0)
-		return pwrgateid;
+	cpu = cpu_logical_map(cpu);
+	tegra_put_cpu_in_reset(cpu);
+	flowctrl_write_cpu_halt(cpu, 0);
 
 	/*
 	 * The power up sequence of cold boot CPU and warm boot CPU
@@ -85,13 +89,13 @@ static int tegra30_power_up_cpu(unsigned int cpu)
 	 * the IO clamps.
 	 * For cold boot CPU, do not wait. After the cold boot CPU be
 	 * booted, it will run to tegra_secondary_init() and set
-	 * tegra_cpu_init_mask which influences what tegra30_power_up_cpu()
+	 * tegra_cpu_init_mask which influences what tegra30_boot_secondary()
 	 * next time around.
 	 */
 	if (cpumask_test_cpu(cpu, &tegra_cpu_init_mask)) {
 		timeout = jiffies + msecs_to_jiffies(50);
 		do {
-			if (tegra_powergate_is_powered(pwrgateid))
+			if (tegra_pmc_cpu_is_powered(cpu))
 				goto remove_clamps;
 			udelay(10);
 		} while (time_before(jiffies, timeout));
@@ -103,14 +107,14 @@ static int tegra30_power_up_cpu(unsigned int cpu)
 	 * be un-gated by un-toggling the power gate register
 	 * manually.
 	 */
-	if (!tegra_powergate_is_powered(pwrgateid)) {
-		ret = tegra_powergate_power_on(pwrgateid);
+	if (!tegra_pmc_cpu_is_powered(cpu)) {
+		ret = tegra_pmc_cpu_power_on(cpu);
 		if (ret)
 			return ret;
 
 		/* Wait for the power to come up. */
 		timeout = jiffies + msecs_to_jiffies(100);
-		while (tegra_powergate_is_powered(pwrgateid)) {
+		while (tegra_pmc_cpu_is_powered(cpu)) {
 			if (time_after(jiffies, timeout))
 				return -ETIMEDOUT;
 			udelay(10);
@@ -123,60 +127,26 @@ remove_clamps:
 	udelay(10);
 
 	/* Remove I/O clamps. */
-	ret = tegra_powergate_remove_clamping(pwrgateid);
+	ret = tegra_pmc_cpu_remove_clamping(cpu);
 	if (ret)
 		return ret;
 
 	udelay(10);
 
-	/* Clear flow controller CSR. */
-	flowctrl_write_cpu_csr(cpu, 0);
-
+	flowctrl_write_cpu_csr(cpu, 0); /* Clear flow controller CSR. */
+	tegra_cpu_out_of_reset(cpu);
 	return 0;
 }
 
-static int __cpuinit tegra_boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int __cpuinit tegra_boot_secondary(unsigned int cpu,
+					  struct task_struct *idle)
 {
-	int status;
-
-	cpu = cpu_logical_map(cpu);
-
-	/*
-	 * Force the CPU into reset. The CPU must remain in reset when the
-	 * flow controller state is cleared (which will cause the flow
-	 * controller to stop driving reset if the CPU has been power-gated
-	 * via the flow controller). This will have no effect on first boot
-	 * of the CPU since it should already be in reset.
-	 */
-	tegra_put_cpu_in_reset(cpu);
-
-	/*
-	 * Unhalt the CPU. If the flow controller was used to power-gate the
-	 * CPU this will cause the flow controller to stop driving reset.
-	 * The CPU will remain in reset because the clock and reset block
-	 * is now driving reset.
-	 */
-	flowctrl_write_cpu_halt(cpu, 0);
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC) && tegra_chip_id == TEGRA20)
+		return tegra20_boot_secondary(cpu, idle);
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) && tegra_chip_id == TEGRA30)
+		return tegra30_boot_secondary(cpu, idle);
 
-	switch (tegra_chip_id) {
-	case TEGRA20:
-		status = tegra20_power_up_cpu(cpu);
-		break;
-	case TEGRA30:
-		status = tegra30_power_up_cpu(cpu);
-		break;
-	default:
-		status = -EINVAL;
-		break;
-	}
-
-	if (status)
-		goto done;
-
-	/* Take the CPU out of reset. */
-	tegra_cpu_out_of_reset(cpu);
-done:
-	return status;
+	return -EINVAL;
 }
 
 static void __init tegra_smp_prepare_cpus(unsigned int max_cpus)