diff options
| author | Bernard Xiong <[email protected]> | 2022-11-27 22:00:11 +0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2022-11-27 22:00:11 +0800 |
| commit | 83d3b3ed624c44eca8c493b4e3759809f15309ed (patch) | |
| tree | 0fed3578983b737109ebfc3e6e0bd9573e523aef /libcpu | |
| parent | 1805ca5e2ee273fbf198a596ceba27414d5dad86 (diff) | |
| parent | 16f6157b1e850ac9cba384e8b23fae07014c65db (diff) | |
Merge pull request #6650 from mxgsgtc/faster-startup-for-cortex-a
[bsp] faster startup for cortex-a
Diffstat (limited to 'libcpu')
| -rw-r--r-- | libcpu/arm/cortex-a/start_gcc.S | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libcpu/arm/cortex-a/start_gcc.S b/libcpu/arm/cortex-a/start_gcc.S index f73b678f7e..5916ddf957 100644 --- a/libcpu/arm/cortex-a/start_gcc.S +++ b/libcpu/arm/cortex-a/start_gcc.S @@ -122,6 +122,13 @@ secondary_loop: b secondary_loop normal_setup: + + /* enable I cache + branch prediction */ + mrc p15, 0, r0, c1, c0, 0 + orr r0, r0, #(1<<12) + orr r0, r0, #(1<<11) + mcr p15, 0, r0, c1, c0, 0 + /* setup stack */ bl stack_setup @@ -142,10 +149,6 @@ bss_loop: mcr p15, 0, r1, c1, c0, 1 //enable smp #endif - /* enable branch prediction */ - mrc p15, 0, r0, c1, c0, 0 - orr r0, r0, #(1<<11) - mcr p15, 0, r0, c1, c0, 0 /* initialize the mmu table and enable mmu */ ldr r0, =platform_mem_desc |