mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
998b973157
* use interface mode switching only when operating in C45 mode Linux prevents switching the interface mode when using C22 MDIO, hence use rate-adapter mode in case the PHY controlled via C22. * use phy_read_paged where appropriate * use existing generic inline functions to handle 10GbE advertisements instead of redundantly defining register macros in realtek.c which are not actually vendor-specific. * make sure 10GbE advertisement is valid, preventing false-positive warning "Downshift occurred from negotiated speed 2.5Gbps to actual speed 1Gbps, check cabling!" with some link-partners using 1G mode. * Support Link Down Power Saving Mode (ALDPS) Signed-off-by: Daniel Golle <daniel@makrotopia.org>
107 lines
3.4 KiB
Diff
107 lines
3.4 KiB
Diff
From ace6abaa0f9203083fe4c0a6a74da2d96410b625 Mon Sep 17 00:00:00 2001
|
|
From: Alexander Couzens <lynxis@fe80.eu>
|
|
Date: Sat, 13 Aug 2022 12:49:33 +0200
|
|
Subject: [PATCH 01/10] net: phy: realtek: rtl8221: allow to configure SERDES
|
|
mode
|
|
|
|
The rtl8221 supports multiple SERDES modes:
|
|
- SGMII
|
|
- 2500base-x
|
|
- HiSGMII
|
|
|
|
Further it supports rate adaption on SERDES links to allow
|
|
slow ethernet speeds (10/100/1000mbit) to work on 2500base-x/HiSGMII
|
|
links without reducing the SERDES speed.
|
|
|
|
When operating without rate adapters the SERDES link will follow the
|
|
ethernet speed.
|
|
|
|
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
|
|
---
|
|
drivers/net/phy/realtek.c | 48 +++++++++++++++++++++++++++++++++++++++
|
|
1 file changed, 48 insertions(+)
|
|
|
|
--- a/drivers/net/phy/realtek.c
|
|
+++ b/drivers/net/phy/realtek.c
|
|
@@ -53,6 +53,15 @@
|
|
RTL8201F_ISR_LINK)
|
|
#define RTL8201F_IER 0x13
|
|
|
|
+#define RTL8221B_MMD_SERDES_CTRL MDIO_MMD_VEND1
|
|
+#define RTL8221B_MMD_PHY_CTRL MDIO_MMD_VEND2
|
|
+#define RTL8221B_SERDES_OPTION 0x697a
|
|
+#define RTL8221B_SERDES_OPTION_MODE_MASK GENMASK(5, 0)
|
|
+#define RTL8221B_SERDES_OPTION_MODE_2500BASEX_SGMII 0
|
|
+#define RTL8221B_SERDES_OPTION_MODE_HISGMII_SGMII 1
|
|
+#define RTL8221B_SERDES_OPTION_MODE_2500BASEX 2
|
|
+#define RTL8221B_SERDES_OPTION_MODE_HISGMII 3
|
|
+
|
|
#define RTL8366RB_POWER_SAVE 0x15
|
|
#define RTL8366RB_POWER_SAVE_ON BIT(12)
|
|
|
|
@@ -841,6 +850,48 @@ static irqreturn_t rtl9000a_handle_inter
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
+static int rtl8221b_config_init(struct phy_device *phydev)
|
|
+{
|
|
+ u16 option_mode;
|
|
+
|
|
+ switch (phydev->interface) {
|
|
+ case PHY_INTERFACE_MODE_2500BASEX:
|
|
+ if (!phydev->is_c45) {
|
|
+ option_mode = RTL8221B_SERDES_OPTION_MODE_2500BASEX;
|
|
+ break;
|
|
+ }
|
|
+ fallthrough;
|
|
+ case PHY_INTERFACE_MODE_SGMII:
|
|
+ option_mode = RTL8221B_SERDES_OPTION_MODE_2500BASEX_SGMII;
|
|
+ break;
|
|
+ default:
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL,
|
|
+ 0x75f3, 0);
|
|
+
|
|
+ phy_modify_mmd_changed(phydev, RTL8221B_MMD_SERDES_CTRL,
|
|
+ RTL8221B_SERDES_OPTION,
|
|
+ RTL8221B_SERDES_OPTION_MODE_MASK, option_mode);
|
|
+ switch (option_mode) {
|
|
+ case RTL8221B_SERDES_OPTION_MODE_2500BASEX_SGMII:
|
|
+ case RTL8221B_SERDES_OPTION_MODE_2500BASEX:
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6a04, 0x0503);
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f10, 0xd455);
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f11, 0x8020);
|
|
+ break;
|
|
+ case RTL8221B_SERDES_OPTION_MODE_HISGMII_SGMII:
|
|
+ case RTL8221B_SERDES_OPTION_MODE_HISGMII:
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6a04, 0x0503);
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f10, 0xd433);
|
|
+ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f11, 0x8020);
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static struct phy_driver realtek_drvs[] = {
|
|
{
|
|
PHY_ID_MATCH_EXACT(0x00008201),
|
|
@@ -981,6 +1032,7 @@ static struct phy_driver realtek_drvs[]
|
|
PHY_ID_MATCH_EXACT(0x001cc849),
|
|
.name = "RTL8221B-VB-CG 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
+ .config_init = rtl8221b_config_init,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
@@ -992,6 +1044,7 @@ static struct phy_driver realtek_drvs[]
|
|
.name = "RTL8221B-VM-CG 2.5Gbps PHY",
|
|
.get_features = rtl822x_get_features,
|
|
.config_aneg = rtl822x_config_aneg,
|
|
+ .config_init = rtl8221b_config_init,
|
|
.read_status = rtl822x_read_status,
|
|
.suspend = genphy_suspend,
|
|
.resume = rtlgen_resume,
|