diff options
Diffstat (limited to 'arch/arm/mm/abort-lv4t.S')
| -rw-r--r-- | arch/arm/mm/abort-lv4t.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/mm/abort-lv4t.S b/arch/arm/mm/abort-lv4t.S index db743e510214..9fb7b0e25ea1 100644 --- a/arch/arm/mm/abort-lv4t.S +++ b/arch/arm/mm/abort-lv4t.S @@ -19,11 +19,16 @@ */ ENTRY(v4t_late_abort) tst r3, #PSR_T_BIT @ check for thumb mode +#ifdef CONFIG_CPU_CP15_MMU mrc p15, 0, r1, c5, c0, 0 @ get FSR mrc p15, 0, r0, c6, c0, 0 @ get FAR + bic r1, r1, #1 << 11 | 1 << 10 @ clear bits 11 and 10 of FSR +#else + mov r0, #0 @ clear r0, r1 (no FSR/FAR) + mov r1, #0 +#endif bne .data_thumb_abort ldr r8, [r2] @ read arm instruction - bic r1, r1, #1 << 11 | 1 << 10 @ clear bits 11 and 10 of FSR tst r8, #1 << 20 @ L = 1 -> write? orreq r1, r1, #1 << 11 @ yes. and r7, r8, #15 << 24 |