e504fdae4e
Add pending patches from Alexander 'lynxis' Couzens which are required for RealTek NBase-T PHYs or SFP+ cages to work when connected to the SGMII interface provided by recent MediaTek SoCs [1]. The patches for MT753x fix link speed limitation on CPU ports observed by many users which is due to reset being carried out wrongly [2]. [1]: https://patchwork.kernel.org/project/netdevbpf/list/?series=669488&state=* [2]: https://patchwork.kernel.org/project/netdevbpf/list/?series=669486&state=* Signed-off-by: Daniel Golle <daniel@makrotopia.org>
32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From e4dca7affb8c03438b63bdb5fddefd6ad2431cfd Mon Sep 17 00:00:00 2001
|
|
From: Alexander Couzens <lynxis@fe80.eu>
|
|
Date: Mon, 15 Aug 2022 14:59:29 +0200
|
|
Subject: [PATCH 07/10] net: mtk_sgmii: mtk_pcs_setup_mode_an: don't rely on
|
|
register defaults
|
|
|
|
Ensure autonegotiation is enabled.
|
|
|
|
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
|
|
---
|
|
drivers/net/ethernet/mediatek/mtk_sgmii.c | 5 +++--
|
|
1 file changed, 3 insertions(+), 2 deletions(-)
|
|
|
|
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
|
|
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
|
|
@@ -32,12 +32,13 @@ static int mtk_pcs_setup_mode_an(struct
|
|
regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER,
|
|
SGMII_LINK_TIMER_DEFAULT);
|
|
|
|
+ /* disable remote fault & enable auto neg */
|
|
regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val);
|
|
- val |= SGMII_REMOTE_FAULT_DIS;
|
|
+ val |= SGMII_REMOTE_FAULT_DIS | SGMII_SPEED_DUPLEX_AN;
|
|
regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val);
|
|
|
|
regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val);
|
|
- val |= SGMII_AN_RESTART;
|
|
+ val |= SGMII_AN_RESTART | SGMII_AN_ENABLE;
|
|
regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val);
|
|
|
|
/* Release PHYA power down state
|