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

Pull ARM SoC cleanups from Olof Johansson:
 "This is the branch where we usually queue up cleanup efforts, moving
  drivers out of the architecture directory, header file restructuring,
  etc.  Sometimes they tangle with new development so it's hard to keep
  it strictly to cleanups.

  Some of the things included in this branch are:

   * Atmel SAMA5 conversion to common clock
   * Reset framework conversion for tegra platforms
    - Some of this depends on tegra clock driver reworks that are shared
      with Mike Turquette's clk tree.
   * Tegra DMA refactoring, which are shared branches with the DMA tree.
   * Removal of some header files on exynos to prepare for
     multiplatform"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (169 commits)
  ARM: mvebu: move Armada 370/XP specific definitions to armada-370-xp.h
  ARM: mvebu: remove prototypes of non-existing functions from common.h
  ARM: mvebu: move ARMADA_XP_MAX_CPUS to armada-370-xp.h
  serial: sh-sci: Rework baud rate calculation
  serial: sh-sci: Compute overrun_bit without using baud rate algo
  serial: sh-sci: Remove unused GPIO request code
  serial: sh-sci: Move overrun_bit and error_mask fields out of pdata
  serial: sh-sci: Support resources passed through platform resources
  serial: sh-sci: Don't check IRQ in verify port operation
  serial: sh-sci: Set the UPF_FIXED_PORT flag
  serial: sh-sci: Remove duplicate interrupt check in verify port op
  serial: sh-sci: Simplify baud rate calculation algorithms
  serial: sh-sci: Remove baud rate calculation algorithm 5
  serial: sh-sci: Sort headers alphabetically
  ARM: EXYNOS: Kill exynos_pm_late_initcall()
  ARM: EXYNOS: Consolidate selection of PM_GENERIC_DOMAINS for Exynos4
  ARM: at91: switch Calao QIL-A9260 board to DT
  clk: at91: fix pmc_clk_ids data type attriubte
  PM / devfreq: use inclusion <mach/map.h> instead of <plat/map-s5p.h>
  ARM: EXYNOS: remove <mach/regs-clock.h> for exynos
  ...

4 files changed, 27 insertions, 22 deletions

diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index 9a7bd137c8fd..1db2a5ca9ab8 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -25,6 +25,8 @@
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/of.h>
+#include <linux/irqchip.h>
+#include <linux/irqchip/arm-gic.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -39,11 +41,6 @@
 
 void __iomem *zynq_scu_base;
 
-static struct of_device_id zynq_of_bus_ids[] __initdata = {
-	{ .compatible = "simple-bus", },
-	{}
-};
-
 static struct platform_device zynq_cpuidle_device = {
 	.name = "cpuidle-zynq",
 };
@@ -59,7 +56,7 @@ static void __init zynq_init_machine(void)
 	 */
 	l2x0_of_init(0x02060000, 0xF0F0FFFF);
 
-	of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 
 	platform_device_register(&zynq_cpuidle_device);
 }
@@ -97,6 +94,12 @@ static void __init zynq_map_io(void)
 	zynq_scu_map_io();
 }
 
+static void __init zynq_irq_init(void)
+{
+	gic_arch_extn.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
+	irqchip_init();
+}
+
 static void zynq_system_reset(enum reboot_mode mode, const char *cmd)
 {
 	zynq_slcr_system_reset();
@@ -110,6 +113,7 @@ static const char * const zynq_dt_match[] = {
 DT_MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform")
 	.smp		= smp_ops(zynq_smp_ops),
 	.map_io		= zynq_map_io,
+	.init_irq	= zynq_irq_init,
 	.init_machine	= zynq_init_machine,
 	.init_time	= zynq_timer_init,
 	.dt_compat	= zynq_dt_match,
diff --git a/arch/arm/mach-zynq/common.h b/arch/arm/mach-zynq/common.h
index 3040d219570f..c22c92cea8cb 100644
--- a/arch/arm/mach-zynq/common.h
+++ b/arch/arm/mach-zynq/common.h
@@ -17,6 +17,8 @@
 #ifndef __MACH_ZYNQ_COMMON_H__
 #define __MACH_ZYNQ_COMMON_H__
 
+void zynq_secondary_startup(void);
+
 extern int zynq_slcr_init(void);
 extern void zynq_slcr_system_reset(void);
 extern void zynq_slcr_cpu_stop(int cpu);
diff --git a/arch/arm/mach-zynq/headsmp.S b/arch/arm/mach-zynq/headsmp.S
index d4cd5f34fe5c..57a32869f0aa 100644
--- a/arch/arm/mach-zynq/headsmp.S
+++ b/arch/arm/mach-zynq/headsmp.S
@@ -18,5 +18,9 @@ zynq_secondary_trampoline_jump:
 	.word	/* cpu 1 */
 .globl zynq_secondary_trampoline_end
 zynq_secondary_trampoline_end:
-
 ENDPROC(zynq_secondary_trampoline)
+
+ENTRY(zynq_secondary_startup)
+	bl	v7_invalidate_l1
+	b	secondary_startup
+ENDPROC(zynq_secondary_startup)
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index 689fbbc3d9c8..abc82ef085c1 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -39,11 +39,6 @@ int zynq_cpun_start(u32 address, int cpu)
 	u32 trampoline_code_size = &zynq_secondary_trampoline_end -
 						&zynq_secondary_trampoline;
 
-	if (cpu > ncores) {
-		pr_warn("CPU No. is not available in the system\n");
-		return -1;
-	}
-
 	/* MS: Expectation that SLCR are directly map and accessible */
 	/* Not possible to jump to non aligned address */
 	if (!(address & 3) && (!address || (address >= trampoline_code_size))) {
@@ -95,7 +90,7 @@ EXPORT_SYMBOL(zynq_cpun_start);
 static int zynq_boot_secondary(unsigned int cpu,
 						struct task_struct *idle)
 {
-	return zynq_cpun_start(virt_to_phys(secondary_startup), cpu);
+	return zynq_cpun_start(virt_to_phys(zynq_secondary_startup), cpu);
 }
 
 /*
@@ -114,23 +109,23 @@ static void __init zynq_smp_init_cpus(void)
 
 static void __init zynq_smp_prepare_cpus(unsigned int max_cpus)
 {
-	int i;
-
-	/*
-	 * Initialise the present map, which describes the set of CPUs
-	 * actually populated at the present time.
-	 */
-	for (i = 0; i < max_cpus; i++)
-		set_cpu_present(i, true);
-
 	scu_enable(zynq_scu_base);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static int zynq_cpu_kill(unsigned cpu)
+{
+	zynq_slcr_cpu_stop(cpu);
+	return 1;
+}
+#endif
+
 struct smp_operations zynq_smp_ops __initdata = {
 	.smp_init_cpus		= zynq_smp_init_cpus,
 	.smp_prepare_cpus	= zynq_smp_prepare_cpus,
 	.smp_boot_secondary	= zynq_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
 	.cpu_die		= zynq_platform_cpu_die,
+	.cpu_kill		= zynq_cpu_kill,
 #endif
 };