diff options
Diffstat (limited to 'arch/arm/mach-bcm283x/mbox.c')
| -rw-r--r-- | arch/arm/mach-bcm283x/mbox.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c index 1af9be78c6..311bd8feaa 100644 --- a/arch/arm/mach-bcm283x/mbox.c +++ b/arch/arm/mach-bcm283x/mbox.c @@ -111,9 +111,18 @@ int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer) dump_buf(buffer); #endif + flush_dcache_range((unsigned long)buffer, + (unsigned long)((void *)buffer + + roundup(buffer->buf_size, ARCH_DMA_MINALIGN))); + ret = bcm2835_mbox_call_raw(chan, phys_to_bus((u32)buffer), &rbuffer); if (ret) return ret; + + invalidate_dcache_range((unsigned long)buffer, + (unsigned long)((void *)buffer + + roundup(buffer->buf_size, ARCH_DMA_MINALIGN))); + if (rbuffer != phys_to_bus((u32)buffer)) { printf("mbox: Response buffer mismatch\n"); return -1; |