diff options
Diffstat (limited to 'arch/arm/mach-realview')
| -rw-r--r-- | arch/arm/mach-realview/Kconfig | 11 | ||||
| -rw-r--r-- | arch/arm/mach-realview/platsmp.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-realview/realview_eb.c | 38 |
3 files changed, 48 insertions, 5 deletions
diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig index 17f5f4439fe..35156ca39df 100644 --- a/arch/arm/mach-realview/Kconfig +++ b/arch/arm/mach-realview/Kconfig @@ -10,10 +10,21 @@ config MACH_REALVIEW_EB config REALVIEW_MPCORE bool "Support MPcore tile" depends on MACH_REALVIEW_EB + select CACHE_L2X0 help Enable support for the MPCore tile on the Realview platform. Since there are device address and interrupt differences, a kernel built with this option enabled is not compatible with other tiles. +config REALVIEW_MPCORE_REVB + bool "Support MPcore RevB tile" + depends on REALVIEW_MPCORE + default n + help + Enable support for the MPCore RevB tile on the Realview platform. + Since there are device address differences, a + kernel built with this option enabled is not compatible with + other tiles. + endmenu diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c index b8484e15dac..fce3596f995 100644 --- a/arch/arm/mach-realview/platsmp.c +++ b/arch/arm/mach-realview/platsmp.c @@ -52,13 +52,14 @@ void __cpuinit platform_secondary_init(unsigned int cpu) * core (e.g. timer irq), then they will not have been enabled * for us: do so */ - gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE)); + gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE)); /* * let the primary processor know we're out of the * pen, then head off into the C entry point */ pen_release = -1; + smp_wmb(); /* * Synchronise with the boot thread. @@ -102,6 +103,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) timeout = jiffies + (1 * HZ); while (time_before(jiffies, timeout)) { + smp_rmb(); if (pen_release == -1) break; diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c index 9741b4d3c9c..3dba666151d 100644 --- a/arch/arm/mach-realview/realview_eb.c +++ b/arch/arm/mach-realview/realview_eb.c @@ -31,6 +31,7 @@ #include <asm/mach-types.h> #include <asm/hardware/gic.h> #include <asm/hardware/icst307.h> +#include <asm/hardware/cache-l2x0.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -57,7 +58,26 @@ static struct map_desc realview_eb_io_desc[] __initdata = { .pfn = __phys_to_pfn(REALVIEW_GIC_DIST_BASE), .length = SZ_4K, .type = MT_DEVICE, + }, +#ifdef CONFIG_REALVIEW_MPCORE + { + .virtual = IO_ADDRESS(REALVIEW_GIC1_CPU_BASE), + .pfn = __phys_to_pfn(REALVIEW_GIC1_CPU_BASE), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(REALVIEW_GIC1_DIST_BASE), + .pfn = __phys_to_pfn(REALVIEW_GIC1_DIST_BASE), + .length = SZ_4K, + .type = MT_DEVICE, }, { + .virtual = IO_ADDRESS(REALVIEW_MPCORE_L220_BASE), + .pfn = __phys_to_pfn(REALVIEW_MPCORE_L220_BASE), + .length = SZ_8K, + .type = MT_DEVICE, + }, +#endif + { .virtual = IO_ADDRESS(REALVIEW_SCTL_BASE), .pfn = __phys_to_pfn(REALVIEW_SCTL_BASE), .length = SZ_4K, @@ -138,19 +158,29 @@ static void __init gic_init_irq(void) #ifdef CONFIG_REALVIEW_MPCORE unsigned int pldctrl; writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK)); - pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + 0xd8); + pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1); pldctrl |= 0x00800000; /* New irq mode */ - writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + 0xd8); + writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1); writel(0x00000000, __io_address(REALVIEW_SYS_LOCK)); #endif - gic_dist_init(__io_address(REALVIEW_GIC_DIST_BASE)); - gic_cpu_init(__io_address(REALVIEW_GIC_CPU_BASE)); + gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29); + gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE)); +#ifdef CONFIG_REALVIEW_MPCORE + gic_dist_init(1, __io_address(REALVIEW_GIC1_DIST_BASE), 64); + gic_cpu_init(1, __io_address(REALVIEW_GIC1_CPU_BASE)); + gic_cascade_irq(1, IRQ_EB_IRQ1); +#endif } static void __init realview_eb_init(void) { int i; +#ifdef CONFIG_REALVIEW_MPCORE + /* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled + * Bits: .... ...0 0111 1001 0000 .... .... .... */ + l2x0_init(__io_address(REALVIEW_MPCORE_L220_BASE), 0x00790000, 0xfe000fff); +#endif clk_register(&realview_clcd_clk); platform_device_register(&realview_flash_device); |