Merge pull request #2530 from qz721/libcpu_cortex_a

Disable the data alignment check.
2025-01-30 05:10:26 +08:00 · 2019-04-01 17:43:19 +08:00 · 2019-04-01 17:43:19 +08:00 · 238c93468f
commit 238c93468f
parent 996071b80b b10039f396
1 changed files with 5 additions and 0 deletions
--- a/libcpu/arm/cortex-a/start_gcc.S
+++ b/libcpu/arm/cortex-a/start_gcc.S
@ -51,6 +51,11 @@ _reset:
    /* set the cpu to SVC32 mode and disable interrupt */
    cps #Mode_SVC

+    /* disable the data alignment check */
+    mrc p15, 0, r1, c1, c0, 0
+    bic r1, #(1<<1)
+    mcr p15, 0, r1, c1, c0, 0
+
    /* setup stack */
    bl      stack_setup