diff options
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/kernel/head-nommu.S | 5 | ||||
| -rw-r--r-- | arch/arm/mm/Kconfig | 12 |
3 files changed, 18 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 2673fee3281c..ea7640af0f1e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -95,7 +95,7 @@ config ARCH_MTD_XIP config VECTORS_BASE hex - default 0xffff0000 if MMU + default 0xffff0000 if MMU || CPU_HIGH_VECTOR default DRAM_BASE if REMAP_VECTORS_TO_RAM default 0x00000000 help diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index 698a537915dd..f359a189dcf2 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -77,6 +77,11 @@ __after_proc_init: #ifdef CONFIG_CPU_ICACHE_DISABLE bic r0, r0, #CR_I #endif +#ifdef CONFIG_CPU_HIGH_VECTOR + orr r0, r0, #CR_V +#else + bic r0, r0, #CR_V +#endif mcr p15, 0, r0, c1, c0, 0 @ write control reg #endif /* CONFIG_CPU_CP15 */ diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 6c1bd424ea61..c0bfb8212b77 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -524,6 +524,18 @@ config CPU_BIG_ENDIAN port must properly enable any big-endian related features of your chipset/board/processor. +config CPU_HIGH_VECTOR + depends !MMU && CPU_CP15 && !CPU_ARM740T + bool "Select the High exception vector" + default n + help + Say Y here to select high exception vector(0xFFFF0000~). + The exception vector can be vary depending on the platform + design in nommu mode. If your platform needs to select + high exception vector, say Y. + Otherwise or if you are unsure, say N, and the low exception + vector (0x00000000~) will be used. + config CPU_ICACHE_DISABLE bool "Disable I-Cache (I-bit)" depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3) |