Merge branch 'next/devel-samsung-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc

From Kukjin Kim:

This is including Samsung small updates(developments) for v3.8.

Add node PL330 MDMA1 and UART3 for DEBUG_LL and secondary cpu bring-up
for exynos4412.

* 'next/devel-samsung-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: dts: add node for PL330 MDMA1 controller for exynos4
  ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
  ARM: EXYNOS: add UART3 to DEBUG_LL ports

Signed-off-by: Olof Johansson <olof@lixom.net>

2 files changed, 25 insertions, 6 deletions

diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index eadf4b59e7d2..6df99c06419d 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -77,6 +77,7 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] __initconst = {
 				"exynos4210-spi.2", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL),
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL),
+	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_MDMA1, "dma-pl330.2", NULL),
 	{},
 };
 
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index f93d820ecab5..4ca8ff14a5bf 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -36,8 +36,22 @@
 
 extern void exynos4_secondary_startup(void);
 
-#define CPU1_BOOT_REG		(samsung_rev() == EXYNOS4210_REV_1_1 ? \
-				S5P_INFORM5 : S5P_VA_SYSRAM)
+static inline void __iomem *cpu_boot_reg_base(void)
+{
+	if (soc_is_exynos4210() && samsung_rev() == EXYNOS4210_REV_1_1)
+		return S5P_INFORM5;
+	return S5P_VA_SYSRAM;
+}
+
+static inline void __iomem *cpu_boot_reg(int cpu)
+{
+	void __iomem *boot_reg;
+
+	boot_reg = cpu_boot_reg_base();
+	if (soc_is_exynos4412())
+		boot_reg += 4*cpu;
+	return boot_reg;
+}
 
 /*
  * Write pen_release in a way that is guaranteed to be visible to all
@@ -84,6 +98,7 @@ static void __cpuinit exynos_secondary_init(unsigned int cpu)
 static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	unsigned long timeout;
+	unsigned long phys_cpu = cpu_logical_map(cpu);
 
 	/*
 	 * Set synchronisation state between this boot processor
@@ -99,7 +114,7 @@ static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct
 	 * Note that "pen_release" is the hardware CPU ID, whereas
 	 * "cpu" is Linux's internal ID.
 	 */
-	write_pen_release(cpu_logical_map(cpu));
+	write_pen_release(phys_cpu);
 
 	if (!(__raw_readl(S5P_ARM_CORE1_STATUS) & S5P_CORE_LOCAL_PWR_EN)) {
 		__raw_writel(S5P_CORE_LOCAL_PWR_EN,
@@ -133,7 +148,7 @@ static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct
 		smp_rmb();
 
 		__raw_writel(virt_to_phys(exynos4_secondary_startup),
-			CPU1_BOOT_REG);
+							cpu_boot_reg(phys_cpu));
 		gic_raise_softirq(cpumask_of(cpu), 0);
 
 		if (pen_release == -1)
@@ -181,6 +196,8 @@ static void __init exynos_smp_init_cpus(void)
 
 static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
 {
+	int i;
+
 	if (!soc_is_exynos5250())
 		scu_enable(scu_base_addr());
 
@@ -190,8 +207,9 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
 	 * until it receives a soft interrupt, and then the
 	 * secondary CPU branches to this address.
 	 */
-	__raw_writel(virt_to_phys(exynos4_secondary_startup),
-			CPU1_BOOT_REG);
+	for (i = 1; i < max_cpus; ++i)
+		__raw_writel(virt_to_phys(exynos4_secondary_startup),
+					cpu_boot_reg(cpu_logical_map(i)));
 }
 
 struct smp_operations exynos_smp_ops __initdata = {