diff options
| author | Jens Axboe <axboe@kernel.dk> | 2012-05-01 14:29:55 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2012-05-01 14:29:55 +0200 |
| commit | 0b7877d4eea3f93e3dd941999522bbd8c538cb53 (patch) | |
| tree | ade6d4e411b9b9b569c802e3b2179826162c934c /arch/arm/mm/proc-v7.S | |
| parent | bd1a68b59c8e3bce45fb76632c64e1e063c3962d (diff) | |
| parent | 69964ea4c7b68c9399f7977aa5b9aa6539a6a98a (diff) | |
Merge tag 'v3.4-rc5' into for-3.5/core
The core branch is behind driver commits that we want to build
on for 3.5, hence I'm pulling in a later -rc.
Linux 3.4-rc5
Conflicts:
Documentation/feature-removal-schedule.txt
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'arch/arm/mm/proc-v7.S')
| -rw-r--r-- | arch/arm/mm/proc-v7.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index f1c8486f750..c2e2b66f72b 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -255,6 +255,18 @@ __v7_setup: mcr p15, 0, r5, c10, c2, 0 @ write PRRR mcr p15, 0, r6, c10, c2, 1 @ write NMRR #endif +#ifndef CONFIG_ARM_THUMBEE + mrc p15, 0, r0, c0, c1, 0 @ read ID_PFR0 for ThumbEE + and r0, r0, #(0xf << 12) @ ThumbEE enabled field + teq r0, #(1 << 12) @ check if ThumbEE is present + bne 1f + mov r5, #0 + mcr p14, 6, r5, c1, c0, 0 @ Initialize TEEHBR to 0 + mrc p14, 6, r0, c0, c0, 0 @ load TEECR + orr r0, r0, #1 @ set the 1st bit in order to + mcr p14, 6, r0, c0, c0, 0 @ stop userspace TEEHBR access +1: +#endif adr r5, v7_crval ldmia r5, {r5, r6} #ifdef CONFIG_CPU_ENDIAN_BE8 |