openwrt/package/boot/uboot-mediatek/patches/101-18-net-mediatek-fix-direct-MDIO-clause-45-access-via-So.patch
Daniel Golle b7e9445d6d uboot-mediatek: add patches for MT7988 and builds for RFB
Import pending patches adding support for MT7988 and provide builds
for the reference board for all possible boot media.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2023-08-07 16:31:27 +01:00

35 lines
1.2 KiB
Diff

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