diff options
| -rw-r--r-- | c/src/lib/libbsp/arm/shared/start/start.S | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/c/src/lib/libbsp/arm/shared/start/start.S b/c/src/lib/libbsp/arm/shared/start/start.S index 63b32501f5..f5f0fa4091 100644 --- a/c/src/lib/libbsp/arm/shared/start/start.S +++ b/c/src/lib/libbsp/arm/shared/start/start.S @@ -187,7 +187,7 @@ _start: /* Stay in SVC mode */ -#ifdef ARM_MULTILIB_VFP_D32 +#ifdef ARM_MULTILIB_VFP /* Read CPACR */ mrc p15, 0, r0, c1, c0, 2 @@ -195,7 +195,9 @@ _start: orr r0, r0, #(1 << 20) orr r0, r0, #(1 << 22) - /* Clear ASEDIS and D32DIS */ + /* + * Clear ASEDIS and D32DIS. Writes to D32DIS are ignored for VFP-D16. + */ bic r0, r0, #(3 << 30) /* Write CPACR */ @@ -205,7 +207,7 @@ _start: /* Enable FPU */ mov r0, #(1 << 30) vmsr FPEXC, r0 -#endif +#endif /* ARM_MULTILIB_VFP */ /* * Branch to start hook 0. |