diff options
Diffstat (limited to 'arch/arm/cpu/mmu-common.c')
| -rw-r--r-- | arch/arm/cpu/mmu-common.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/arm/cpu/mmu-common.c b/arch/arm/cpu/mmu-common.c index 2ef1fa231f..488a189f1c 100644 --- a/arch/arm/cpu/mmu-common.c +++ b/arch/arm/cpu/mmu-common.c @@ -9,6 +9,7 @@ #include <dma.h> #include <mmu.h> #include <asm/system.h> +#include <asm/barebox-arm.h> #include <memory.h> #include "mmu.h" @@ -58,14 +59,24 @@ void dma_free_coherent(void *mem, dma_addr_t dma_handle, size_t size) static int mmu_init(void) { - if (list_empty(&memory_banks)) + if (list_empty(&memory_banks)) { + resource_size_t start; + int ret; + /* * If you see this it means you have no memory registered. * This can be done either with arm_add_mem_device() in an * initcall prior to mmu_initcall or via devicetree in the * memory node. */ - panic("MMU: No memory bank found! Cannot continue\n"); + pr_emerg("No memory bank registered. Limping along with initial memory\n"); + + start = arm_mem_membase_get(); + ret = barebox_add_memory_bank("initmem", start, + arm_mem_endmem_get() - start); + if (ret) + panic(""); + } __mmu_init(get_cr() & CR_M); |