diff options
Diffstat (limited to 'arch/arm/mach-tegra/reset.c')
| -rw-r--r-- | arch/arm/mach-tegra/reset.c | 55 |
1 files changed, 40 insertions, 15 deletions
diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c index 5beb7ebe294..146fe8e0ae7 100644 --- a/arch/arm/mach-tegra/reset.c +++ b/arch/arm/mach-tegra/reset.c @@ -21,11 +21,12 @@ #include <asm/cacheflush.h> #include <asm/hardware/cache-l2x0.h> +#include <asm/firmware.h> -#include <mach/iomap.h> -#include <mach/irammap.h> - +#include "iomap.h" +#include "irammap.h" #include "reset.h" +#include "sleep.h" #include "fuse.h" #define TEGRA_IRAM_RESET_BASE (TEGRA_IRAM_BASE + \ @@ -33,26 +34,18 @@ static bool is_enabled; -static void __init tegra_cpu_reset_handler_enable(void) +static void __init tegra_cpu_reset_handler_set(const u32 reset_address) { - void __iomem *iram_base = IO_ADDRESS(TEGRA_IRAM_RESET_BASE); void __iomem *evp_cpu_reset = IO_ADDRESS(TEGRA_EXCEPTION_VECTORS_BASE + 0x100); void __iomem *sb_ctrl = IO_ADDRESS(TEGRA_SB_BASE); u32 reg; - BUG_ON(is_enabled); - BUG_ON(tegra_cpu_reset_handler_size > TEGRA_IRAM_RESET_HANDLER_SIZE); - - memcpy(iram_base, (void *)__tegra_cpu_reset_handler_start, - tegra_cpu_reset_handler_size); - /* * NOTE: This must be the one and only write to the EVP CPU reset * vector in the entire system. */ - writel(TEGRA_IRAM_RESET_BASE + tegra_cpu_reset_handler_offset, - evp_cpu_reset); + writel(reset_address, evp_cpu_reset); wmb(); reg = readl(evp_cpu_reset); @@ -66,8 +59,33 @@ static void __init tegra_cpu_reset_handler_enable(void) writel(reg, sb_ctrl); wmb(); } +} - is_enabled = true; +static void __init tegra_cpu_reset_handler_enable(void) +{ + void __iomem *iram_base = IO_ADDRESS(TEGRA_IRAM_RESET_BASE); + const u32 reset_address = TEGRA_IRAM_RESET_BASE + + tegra_cpu_reset_handler_offset; + int err; + + BUG_ON(is_enabled); + BUG_ON(tegra_cpu_reset_handler_size > TEGRA_IRAM_RESET_HANDLER_SIZE); + + memcpy(iram_base, (void *)__tegra_cpu_reset_handler_start, + tegra_cpu_reset_handler_size); + + err = call_firmware_op(set_cpu_boot_addr, 0, reset_address); + switch (err) { + case -ENOSYS: + tegra_cpu_reset_handler_set(reset_address); + /* pass-through */ + case 0: + is_enabled = true; + break; + default: + pr_crit("Cannot set CPU reset handler: %d\n", err); + BUG(); + } } void __init tegra_cpu_reset_handler_init(void) @@ -75,10 +93,17 @@ void __init tegra_cpu_reset_handler_init(void) #ifdef CONFIG_SMP __tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_PRESENT] = - *((u32 *)cpu_present_mask); + *((u32 *)cpu_possible_mask); __tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_SECONDARY] = virt_to_phys((void *)tegra_secondary_startup); #endif +#ifdef CONFIG_PM_SLEEP + __tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP1] = + TEGRA_IRAM_LPx_RESUME_AREA; + __tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP2] = + virt_to_phys((void *)tegra_resume); +#endif + tegra_cpu_reset_handler_enable(); } |
