X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Farm%2Fmach-bcm283x%2Fmbox.c;h=ec3f417f40f4356669570245d1c4ecaefcaffb5d;hb=fafa440342a50191504c1da7515ed6e28c933396;hp=1af9be78c68a3ccb5ba019a3f1e95e9122160142;hpb=20913018fbce5a2e3c93b6eeb56e67460e29542c;p=u-boot

diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
index 1af9be78c6..ec3f417f40 100644
--- a/arch/arm/mach-bcm283x/mbox.c
+++ b/arch/arm/mach-bcm283x/mbox.c
@@ -111,10 +111,21 @@ int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer)
 	dump_buf(buffer);
 #endif
 
-	ret = bcm2835_mbox_call_raw(chan, phys_to_bus((u32)buffer), &rbuffer);
+	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((unsigned long)buffer),
+				    &rbuffer);
 	if (ret)
 		return ret;
-	if (rbuffer != phys_to_bus((u32)buffer)) {
+
+	invalidate_dcache_range((unsigned long)buffer,
+				(unsigned long)((void *)buffer +
+				roundup(buffer->buf_size, ARCH_DMA_MINALIGN)));
+
+	if (rbuffer != phys_to_bus((unsigned long)buffer)) {
 		printf("mbox: Response buffer mismatch\n");
 		return -1;
 	}