diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 95a0b5224b..7e2695761e 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -239,55 +239,47 @@ skip_errata_801819: #endif #ifdef CONFIG_ARM_ERRATA_454179 + mrc p15, 0, r0, c1, c0, 1 @ Read ACR + cmp r2, #0x21 @ Only on < r2p1 - bge skip_errata_454179 + orrlt r0, r0, #(0x3 << 6) @ Set DBSM(BIT7) and IBE(BIT6) bits - mrc p15, 0, r0, c1, c0, 1 @ Read ACR - orr r0, r0, #(0x3 << 6) @ Set DBSM(BIT7) and IBE(BIT6) bits push {r1-r5} @ Save the cpu info registers bl v7_arch_cp15_set_acr pop {r1-r5} @ Restore the cpu info - fall through - -skip_errata_454179: #endif #ifdef CONFIG_ARM_ERRATA_430973 + mrc p15, 0, r0, c1, c0, 1 @ Read ACR + cmp r2, #0x21 @ Only on < r2p1 - bge skip_errata_430973 + orrlt r0, r0, #(0x1 << 6) @ Set IBE bit - mrc p15, 0, r0, c1, c0, 1 @ Read ACR - orr r0, r0, #(0x1 << 6) @ Set IBE bit push {r1-r5} @ Save the cpu info registers bl v7_arch_cp15_set_acr pop {r1-r5} @ Restore the cpu info - fall through - -skip_errata_430973: #endif #ifdef CONFIG_ARM_ERRATA_621766 + mrc p15, 0, r0, c1, c0, 1 @ Read ACR + cmp r2, #0x21 @ Only on < r2p1 - bge skip_errata_621766 + orrlt r0, r0, #(0x1 << 5) @ Set L1NEON bit - mrc p15, 0, r0, c1, c0, 1 @ Read ACR - orr r0, r0, #(0x1 << 5) @ Set L1NEON bit push {r1-r5} @ Save the cpu info registers bl v7_arch_cp15_set_acr pop {r1-r5} @ Restore the cpu info - fall through - -skip_errata_621766: #endif #ifdef CONFIG_ARM_ERRATA_725233 + mrc p15, 1, r0, c9, c0, 2 @ Read L2ACR + cmp r2, #0x21 @ Only on < r2p1 (Cortex A8) - bge skip_errata_725233 + orrlt r0, r0, #(0x1 << 27) @ L2 PLD data forwarding disable - mrc p15, 1, r0, c9, c0, 2 @ Read L2ACR - orr r0, r0, #(0x1 << 27) @ L2 PLD data forwarding disable push {r1-r5} @ Save the cpu info registers bl v7_arch_cp15_set_l2aux_ctrl pop {r1-r5} @ Restore the cpu info - fall through - -skip_errata_725233: #endif #ifdef CONFIG_ARM_ERRATA_852421 |