diff options
author | Victor Kamensky <victor.kamensky@linaro.org> | 2013-10-16 00:50:34 -0400 |
---|---|---|
committer | Ben Dooks <ben.dooks@codethink.co.uk> | 2013-10-19 15:46:36 -0400 |
commit | fdb07aee0b2b9d7d1893c97f5ce79ec355caaf1f (patch) | |
tree | 0f2e04f0717a87d81855da31f89d8d455d38c352 | |
parent | a1af3474487cc3b8731b990dceac6b6aad7f3ed8 (diff) |
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>
-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) | |||
280 | 280 | ||
281 | /* Enable the CCI port */ | 281 | /* Enable the CCI port */ |
282 | " ldr r0, [r0, %[offsetof_port_phys]] \n" | 282 | " ldr r0, [r0, %[offsetof_port_phys]] \n" |
283 | " mov r3, #"__stringify(CCI_ENABLE_REQ)" \n" | 283 | " mov r3, %[cci_enable_req]\n" |
284 | " str r3, [r0, #"__stringify(CCI_PORT_CTRL)"] \n" | 284 | " str r3, [r0, #"__stringify(CCI_PORT_CTRL)"] \n" |
285 | 285 | ||
286 | /* poll the status reg for completion */ | 286 | /* poll the status reg for completion */ |
@@ -288,7 +288,7 @@ asmlinkage void __naked cci_enable_port_for_self(void) | |||
288 | " ldr r0, [r1] \n" | 288 | " ldr r0, [r1] \n" |
289 | " ldr r0, [r0, r1] @ cci_ctrl_base \n" | 289 | " ldr r0, [r0, r1] @ cci_ctrl_base \n" |
290 | "4: ldr r1, [r0, #"__stringify(CCI_CTRL_STATUS)"] \n" | 290 | "4: ldr r1, [r0, #"__stringify(CCI_CTRL_STATUS)"] \n" |
291 | " tst r1, #1 \n" | 291 | " tst r1, %[cci_control_status_bits] \n" |
292 | " bne 4b \n" | 292 | " bne 4b \n" |
293 | 293 | ||
294 | " mov r0, #0 \n" | 294 | " mov r0, #0 \n" |
@@ -301,6 +301,8 @@ asmlinkage void __naked cci_enable_port_for_self(void) | |||
301 | "7: .word cci_ctrl_phys - . \n" | 301 | "7: .word cci_ctrl_phys - . \n" |
302 | : : | 302 | : : |
303 | [sizeof_cpu_port] "i" (sizeof(cpu_port)), | 303 | [sizeof_cpu_port] "i" (sizeof(cpu_port)), |
304 | [cci_enable_req] "i" cpu_to_le32(CCI_ENABLE_REQ), | ||
305 | [cci_control_status_bits] "i" cpu_to_le32(1), | ||
304 | #ifndef __ARMEB__ | 306 | #ifndef __ARMEB__ |
305 | [offsetof_cpu_port_mpidr_lsb] "i" (offsetof(struct cpu_port, mpidr)), | 307 | [offsetof_cpu_port_mpidr_lsb] "i" (offsetof(struct cpu_port, mpidr)), |
306 | #else | 308 | #else |