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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-05-30 14:00:16 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-05-30 14:00:16 +0100 |
| commit | 213fb2a8ee81ec106b9b370a07ccad575e9d3748 (patch) | |
| tree | ae439bbb35cfa5c96b8d658ea97359c761117e09 | |
| parent | d71e1352e240dea32d481ad8d662e8de4406ac7e (diff) | |
| download | blackbird-op-linux-213fb2a8ee81ec106b9b370a07ccad575e9d3748.tar.gz blackbird-op-linux-213fb2a8ee81ec106b9b370a07ccad575e9d3748.zip | |
ARMv7: Enable the SWP instruction
The SWP instruction has been deprecated starting with the ARMv6
architecture. On ARMv7 processors with the multiprocessor extensions
(like Cortex-A9), this instruction is disabled by default but it can be
enabled by setting bit 10 in the System Control register. Note that
setting this bit is safe even if the ARMv7 processor has the SWP
instruction enabled by default.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm/mm/proc-v7.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index a18aace32990..095b69f5a833 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -232,14 +232,14 @@ __v7_setup: ENDPROC(__v7_setup) /* AT - * TFR EV X F I D LR - * .EEE ..EE PUI. .T.T 4RVI ZFRS BLDP WCAM + * TFR EV X F I D LR S + * .EEE ..EE PUI. .T.T 4RVI ZWRS BLDP WCAM * rxxx rrxx xxx0 0101 xxxx xxxx x111 xxxx < forced - * 1 0 110 0011 1.00 .111 1101 < we want + * 1 0 110 0011 1100 .111 1101 < we want */ .type v7_crval, #object v7_crval: - crval clear=0x0120c302, mmuset=0x10c0387d, ucset=0x00c0187c + crval clear=0x0120c302, mmuset=0x10c03c7d, ucset=0x00c01c7c __v7_setup_stack: .space 4 * 11 @ 11 registers |
