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net: ethernet: mediatek: Use NET_IP_ALIGN to judge if HW RX_2BYTE_OFFSET is enabled

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[ Upstream commit 880c2d4b2fdfd580ebcd6bb7240a8027a1d34751 ]

Should only enable HW RX_2BYTE_OFFSET function in the case NET_IP_ALIGN
equals to 2.

Signed-off-by: Mark Lee <mark-mc.lee@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sean Wang 2019-06-01 08:16:27 +08:00 committed by Greg Kroah-Hartman
parent 0b0b65efdd
commit cd8020337b
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mediatek/mtk_eth_soc.c
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@ -1788,6 +1788,7 @@ static void mtk_poll_controller(struct net_device *dev)
static int mtk_start_dma(struct mtk_eth *eth)
{
u32 rx_2b_offset = (NET_IP_ALIGN == 2) ? MTK_RX_2B_OFFSET : 0;
int err;
err = mtk_dma_init(eth);
@ -1804,7 +1805,7 @@ static int mtk_start_dma(struct mtk_eth *eth)
MTK_QDMA_GLO_CFG);
mtk_w32(eth,
MTK_RX_DMA_EN | MTK_RX_2B_OFFSET |
MTK_RX_DMA_EN | rx_2b_offset |
MTK_RX_BT_32DWORDS | MTK_MULTI_EN,
MTK_PDMA_GLO_CFG);