ARM: bcm2835: use phys_to_bus() for mbox
When we communicate with the VideoCore to perform property mailbox
transactions, that is a DMA operation as far as the property buffer
is concerned. Use phys_to_bus() on that buffer.
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
index 3b17a31..1af9be7 100644
--- a/arch/arm/mach-bcm283x/mbox.c
+++ b/arch/arm/mach-bcm283x/mbox.c
@@ -7,6 +7,7 @@
#include <common.h>
#include <asm/io.h>
#include <asm/arch/mbox.h>
+#include <phys2bus.h>
#define TIMEOUT 1000 /* ms */
@@ -110,10 +111,10 @@
dump_buf(buffer);
#endif
- ret = bcm2835_mbox_call_raw(chan, (u32)buffer, &rbuffer);
+ ret = bcm2835_mbox_call_raw(chan, phys_to_bus((u32)buffer), &rbuffer);
if (ret)
return ret;
- if (rbuffer != (u32)buffer) {
+ if (rbuffer != phys_to_bus((u32)buffer)) {
printf("mbox: Response buffer mismatch\n");
return -1;
}