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| author | Victor Kamensky <victor.kamensky@linaro.org> | 2013-10-16 06:50:34 +0200 |
|---|---|---|
| committer | Ben Dooks <ben.dooks@codethink.co.uk> | 2013-10-19 21:46:36 +0200 |
| commit | fdb07aee0b2b9d7d1893c97f5ce79ec355caaf1f (patch) | |
| tree | 0f2e04f0717a87d81855da31f89d8d455d38c352 /drivers/bus/arm-cci.c | |
| parent | ARM: tlb: ASID macro should give 32bit result for BE correct operation (diff) | |
| download | linux-fdb07aee0b2b9d7d1893c97f5ce79ec355caaf1f.tar.xz linux-fdb07aee0b2b9d7d1893c97f5ce79ec355caaf1f.zip | |
ARM: cci driver need big endian fixes in asm code
cci_enable_port_for_self written in asm and it works with h/w
registers that are in little endian format. When run in big
endian mode it needs byteswaped constants before/after it
writes/reads to/from such registers
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Diffstat (limited to 'drivers/bus/arm-cci.c')
| -rw-r--r-- | drivers/bus/arm-cci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index 200926699778..2e6c275322f1 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -280,7 +280,7 @@ asmlinkage void __naked cci_enable_port_for_self(void) /* Enable the CCI port */ " ldr r0, [r0, %[offsetof_port_phys]] \n" -" mov r3, #"__stringify(CCI_ENABLE_REQ)" \n" +" mov r3, %[cci_enable_req]\n" " str r3, [r0, #"__stringify(CCI_PORT_CTRL)"] \n" /* poll the status reg for completion */ @@ -288,7 +288,7 @@ asmlinkage void __naked cci_enable_port_for_self(void) " ldr r0, [r1] \n" " ldr r0, [r0, r1] @ cci_ctrl_base \n" "4: ldr r1, [r0, #"__stringify(CCI_CTRL_STATUS)"] \n" -" tst r1, #1 \n" +" tst r1, %[cci_control_status_bits] \n" " bne 4b \n" " mov r0, #0 \n" @@ -301,6 +301,8 @@ asmlinkage void __naked cci_enable_port_for_self(void) "7: .word cci_ctrl_phys - . \n" : : [sizeof_cpu_port] "i" (sizeof(cpu_port)), + [cci_enable_req] "i" cpu_to_le32(CCI_ENABLE_REQ), + [cci_control_status_bits] "i" cpu_to_le32(1), #ifndef __ARMEB__ [offsetof_cpu_port_mpidr_lsb] "i" (offsetof(struct cpu_port, mpidr)), #else |