diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig.debug | 11 | ||||
| -rw-r--r-- | arch/arm/boot/dts/exynos4.dtsi | 6 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/mach-exynos4-dt.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 30 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/Kconfig | 1 |
5 files changed, 43 insertions, 6 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 6783273f9e0b..04a3f0d1d053 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -338,6 +338,17 @@ choice The uncompressor code port configuration is now handled by CONFIG_S3C_LOWLEVEL_UART_PORT. + config DEBUG_S3C_UART3 + depends on PLAT_SAMSUNG && ARCH_EXYNOS + bool "Use S3C UART 3 for low-level debug" + help + Say Y here if you want the debug print routines to direct + their output to UART 3. The port must have been initialised + by the boot-loader before use. + + The uncompressor code port configuration is now handled + by CONFIG_S3C_LOWLEVEL_UART_PORT. + config DEBUG_SOCFPGA_UART depends on ARCH_SOCFPGA bool "Use SOCFPGA UART for low-level debug" diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index a26c3dd58269..96d4462730fb 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -244,5 +244,11 @@ reg = <0x12690000 0x1000>; interrupts = <0 36 0>; }; + + mdma1: mdma@12850000 { + compatible = "arm,pl330", "arm,primecell"; + reg = <0x12850000 0x1000>; + interrupts = <0 34 0>; + }; }; }; 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 = { diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index 95360e679f4e..a9d52167e16e 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -507,5 +507,6 @@ config DEBUG_S3C_UART default "0" if DEBUG_S3C_UART0 default "1" if DEBUG_S3C_UART1 default "2" if DEBUG_S3C_UART2 + default "3" if DEBUG_S3C_UART3 endif |