[U-Boot] [PATCH v2] zynq-gem: Flush cache before handing RX packet to receive handler

[Stefan Theil]

Signed-off-by: Stefan Theil <stefan.theil at mixed-mode.de>

---
Changes for v2:
	- Use invalidate_dcache_range instead of
	  flush_dcache_range
---
 drivers/net/zynq_gem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 9bd79b198a..32a0ff392f 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -621,6 +621,9 @@ static int zynq_gem_recv(struct udevice *dev, int flags, uchar **packetp)
 
 	*packetp = (uchar *)(uintptr_t)addr;
 
+	invalidate_dcache_range(addr, addr + roundup(PKTSIZE_ALIGN, ARCH_DMA_MINALIGN));
+	barrier();
+
 	return frame_len;
 }
 
-- 
2.17.1