diff options
Diffstat (limited to 'arch/arm/cpu/start-pbl.c')
| -rw-r--r-- | arch/arm/cpu/start-pbl.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/arch/arm/cpu/start-pbl.c b/arch/arm/cpu/start-pbl.c index 932a3da9e2..04b54304e1 100644 --- a/arch/arm/cpu/start-pbl.c +++ b/arch/arm/cpu/start-pbl.c @@ -36,6 +36,9 @@ unsigned long free_mem_ptr; unsigned long free_mem_end_ptr; +/* + * First instructions in the pbl image + */ void __naked __section(.text_head_entry) pbl_start(void) { barebox_arm_head(); @@ -116,7 +119,11 @@ static void mmu_disable(void) static void barebox_uncompress(void *compressed_start, unsigned int len) { void (*barebox)(void); - int use_mmu = IS_ENABLED(CONFIG_MMU); + /* + * remap_cached currently does not work rendering the feature + * of enabling the MMU in the PBL useless. disable for now. + */ + int use_mmu = 0; /* set 128 KiB at the end of the MALLOC_BASE for early malloc */ free_mem_ptr = MALLOC_BASE + MALLOC_SIZE - SZ_128K; @@ -149,23 +156,17 @@ static void barebox_uncompress(void *compressed_start, unsigned int len) * Board code can jump here by either returning from board_init_lowlevel * or by calling this function directly. */ -void __naked __section(.text_ll_return) board_init_lowlevel_return(void) +void __naked board_init_lowlevel_return(void) { - uint32_t r, addr, offset; + uint32_t r, offset; uint32_t pg_start, pg_end, pg_len; - /* - * Get runtime address of this function. Do not - * put any code above this. - */ - __asm__ __volatile__("1: adr %0, 1b":"=r"(addr)); - /* Setup the stack */ r = STACK_BASE + STACK_SIZE - 16; __asm__ __volatile__("mov sp, %0" : : "r"(r)); /* Get offset between linked address and runtime address */ - offset = (uint32_t)__ll_return - addr; + offset = get_runtime_offset(); pg_start = (uint32_t)&input_data - offset; pg_end = (uint32_t)&input_data_end - offset; |