diff options
| -rw-r--r-- | arch/arm/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/start.S | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 7f6ab4ac7e..787f2b14a8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -97,6 +97,9 @@ config ARM_ERRATA_833069 config ARM_ERRATA_833471 bool +config ARM_ERRATA_845369 + bool + config ARM_ERRATA_852421 bool diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index f06fd28940..7b84a7a0f1 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -187,6 +187,12 @@ ENTRY(cpu_init_cp15) mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register #endif +#ifdef CONFIG_ARM_ERRATA_845369 + mrc p15, 0, r0, c15, c0, 1 @ read diagnostic register + orr r0, r0, #1 << 22 @ set bit #22 + mcr p15, 0, r0, c15, c0, 1 @ write diagnostic register +#endif + mov r5, lr @ Store my Caller mrc p15, 0, r1, c0, c0, 0 @ r1 has Read Main ID Register (MIDR) mov r3, r1, lsr #20 @ get variant field |