diff options
Diffstat (limited to 'arch/arm/Kconfig-nommu')
| -rw-r--r-- | arch/arm/Kconfig-nommu | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/Kconfig-nommu b/arch/arm/Kconfig-nommu index 8ce56e5bd78f..e1574be2ded6 100644 --- a/arch/arm/Kconfig-nommu +++ b/arch/arm/Kconfig-nommu @@ -25,3 +25,20 @@ config FLASH_SIZE hex 'FLASH Size' if SET_MEM_PARAM default 0x00400000 +config REMAP_VECTORS_TO_RAM + bool 'Install vectors to the begining of RAM' if DRAM_BASE + depends on DRAM_BASE + help + The kernel needs to change the hardware exception vectors. + In nommu mode, the hardware exception vectors are normally + placed at address 0x00000000. However, this region may be + occupied by read-only memory depending on H/W design. + + If the region contains read-write memory, say 'n' here. + + If your CPU provides a remap facility which allows the exception + vectors to be mapped to writable memory, say 'n' here. + + Otherwise, say 'y' here. In this case, the kernel will require + external support to redirect the hardware exception vectors to + the writable versions located at DRAM_BASE. |