diff options
| author | Victor Kamensky <victor.kamensky@linaro.org> | 2013-11-07 08:42:40 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-14 11:03:01 +0000 |
| commit | 10593b2e49327f7cd193fc2ba30fa3da322bda6a (patch) | |
| tree | 82ea3d6b87c7069a1f74882724f90fc759e9d0f1 | |
| parent | 83651bb988b169deae16608262e996eb718c6ab4 (diff) | |
ARM: 7881/1: __fixup_smp read of SCU config should do byteswap in BE case
Commit "bc41b8724f24b9a27d1dcc6c974b8f686b38d554 ARM: 7846/1:
Update SMP_ON_UP code to detect A9MPCore with 1 CPU devices"
added read of SCU config register into __fixup_smp function.
Such read should be followed by byteswap, if kernel runs in
BE mode.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/kernel/head.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 7801866e626..cd788d5b668 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -508,6 +508,7 @@ __fixup_smp: teq r0, #0x0 @ '0' on actual UP A9 hardware beq __fixup_smp_on_up @ So its an A9 UP ldr r0, [r0, #4] @ read SCU Config +ARM_BE8(rev r0, r0) @ byteswap if big endian and r0, r0, #0x3 @ number of CPUs teq r0, #0x0 @ is 1? movne pc, lr |