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ARM: bcm2835: use phys_to_bus() for mbox

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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>
This commit is contained in:
Stephen Warren 2015-04-06 20:28:39 -06:00 • committed by Marek Vasut
parent 4748cce573
commit 122426d46e
1 changed files with 3 additions and 2 deletions
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5
arch/arm/mach-bcm283x/mbox.c
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@ -7,6 +7,7 @@
#include <common.h> #include <common.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/arch/mbox.h> #include <asm/arch/mbox.h>
#include <phys2bus.h>
#define TIMEOUT 1000 /* ms */ #define TIMEOUT 1000 /* ms */
@ -110,10 +111,10 @@ int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer)
dump_buf(buffer); dump_buf(buffer);
#endif #endif
ret = bcm2835_mbox_call_raw(chan, (u32)buffer, &rbuffer); ret = bcm2835_mbox_call_raw(chan, phys_to_bus((u32)buffer), &rbuffer);
if (ret) if (ret)
return ret; return ret;
if (rbuffer != (u32)buffer) { if (rbuffer != phys_to_bus((u32)buffer)) {
printf("mbox: Response buffer mismatch\n"); printf("mbox: Response buffer mismatch\n");
return -1; return -1;
} }