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net: sun8i_emac: Drop unneeded cache invalidation before sending

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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>
This commit is contained in:
Andre Przywara 2020-07-06 01:40:39 +01:00 committed by Jagan Teki
parent ed909de5d3
commit eaeadb50ea
1 changed files with 0 additions and 3 deletions
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3
drivers/net/sun8i_emac.c
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@ -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);