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35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
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From c44f6ac1a31961b0d4faf982ee42167de5ac1672 Mon Sep 17 00:00:00 2001
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From: Weijie Gao <weijie.gao@mediatek.com>
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Date: Wed, 19 Jul 2023 17:17:03 +0800
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Subject: [PATCH 18/29] net: mediatek: fix direct MDIO clause 45 access via SoC
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The original direct MDIO clause 45 access via SoC is missing the
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data output. This patch adds it back to ensure MDIO clause 45 can
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work properly for external PHYs.
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Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
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---
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drivers/net/mtk_eth.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/net/mtk_eth.c
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+++ b/drivers/net/mtk_eth.c
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@@ -198,7 +198,7 @@ static int mtk_mii_rw(struct mtk_eth_pri
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(((u32)phy << MDIO_PHY_ADDR_S) & MDIO_PHY_ADDR_M) |
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(((u32)reg << MDIO_REG_ADDR_S) & MDIO_REG_ADDR_M);
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- if (cmd == MDIO_CMD_WRITE)
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+ if (cmd == MDIO_CMD_WRITE || cmd == MDIO_CMD_ADDR)
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val |= data & MDIO_RW_DATA_M;
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mtk_gmac_write(priv, GMAC_PIAC_REG, val | PHY_ACS_ST);
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@@ -210,7 +210,7 @@ static int mtk_mii_rw(struct mtk_eth_pri
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return ret;
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}
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- if (cmd == MDIO_CMD_READ) {
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+ if (cmd == MDIO_CMD_READ || cmd == MDIO_CMD_READ_C45) {
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val = mtk_gmac_read(priv, GMAC_PIAC_REG);
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return val & MDIO_RW_DATA_M;
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}
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