When using dcache the setup data for the mailbox must be actually written
into memory before calling into firmware. Thus flush and invalidate the
memory.
Signed-off-by: Alexander Stein <alexander...@web.de>
---
arch/arm/mach-bcm283x/mbox.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
index 1af9be7..237c76c 100644
--- a/arch/arm/mach-bcm283x/mbox.c
+++ b/arch/arm/mach-bcm283x/mbox.c
@@ -111,6 +111,12 @@ 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 +
+ buffer->buf_size));
+ invalidate_dcache_range((unsigned long)buffer,
+ (unsigned long)((void *)buffer +
+ buffer->buf_size));
ret = bcm2835_mbox_call_raw(chan, phys_to_bus((u32)buffer), &rbuffer);
if (ret)
return ret;
--
2.4.5
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
