From: Andre Przywara <andre.przywara@arm.com>
Date: Mon, 6 Jul 2020 00:40:39 +0000 (+0100)
Subject: net: sun8i_emac: Drop unneeded cache invalidation before sending
X-Git-Url: http://git.dujemihanovic.xyz/img/static/git-logo.png?a=commitdiff_plain;h=eaeadb50ea4d65e6fdbde7224b089dca6a41ff1e;p=u-boot.git

net: sun8i_emac: Drop unneeded cache invalidation before sending

There is no reason to invalidate a TX descriptor before we are setting
it up, as we will only write to a field.

Remove the not needed invalidate_dcache_range() call.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Tested-by: Amit Singh Tomar <amittomer25@gmail.com> # Pine64+
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
---

diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index 335c85f3c2..45130e1ba1 100644
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -624,9 +624,6 @@ static int sun8i_emac_eth_send(struct udevice *dev, void *packet, int length)
 	uintptr_t data_end = data_start +
 		roundup(length, ARCH_DMA_MINALIGN);
 
-	/* Invalidate entire buffer descriptor */
-	invalidate_dcache_range(desc_start, desc_end);
-
 	desc_p->ctl_size = length | EMAC_DESC_CHAIN_SECOND;
 
 	memcpy((void *)data_start, packet, length);