From 621e0ce7e2e92cad51adc144745ec363c675332b Mon Sep 17 00:00:00 2001 From: Birger Koblitz Date: Thu, 13 Jan 2022 18:48:06 +0100 Subject: [PATCH] realtek: Use SerDes Information from .dts for phylink config When a port is brought up, read the SDS-id via the phy_device for a given port and use this to configure the SDS when it is brought up. Signed-off-by: Birger Koblitz --- .../files-5.10/drivers/net/dsa/rtl83xx/dsa.c | 30 ++++++++++++++++--- .../drivers/net/dsa/rtl83xx/rtl838x.h | 2 +- 2 files changed, 27 insertions(+), 5 deletions(-) diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c index 8ad713163e..12334dff9f 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c @@ -239,6 +239,26 @@ static int rtl930x_setup(struct dsa_switch *ds) return 0; } +static int rtl93xx_get_sds(struct phy_device *phydev) +{ + struct device *dev = &phydev->mdio.dev; + struct device_node *dn; + u32 sds_num; + + if (!dev) + return -1; + if (dev->of_node) { + dn = dev->of_node; + if (of_property_read_u32(dn, "sds", &sds_num)) + sds_num = -1; + } else { + dev_err(dev, "No DT node.\n"); + return -1; + } + + return sds_num; +} + static void rtl83xx_phylink_validate(struct dsa_switch *ds, int port, unsigned long *supported, struct phylink_link_state *state) @@ -594,7 +614,7 @@ static void rtl93xx_phylink_mac_config(struct dsa_switch *ds, int port, int sds_num, sds_mode; u32 reg; - pr_debug("%s port %d, mode %x, phy-mode: %s, speed %d, link %d\n", __func__, + pr_info("%s port %d, mode %x, phy-mode: %s, speed %d, link %d\n", __func__, port, mode, phy_modes(state->interface), state->speed, state->link); // Nothing to be done for the CPU-port @@ -604,9 +624,9 @@ static void rtl93xx_phylink_mac_config(struct dsa_switch *ds, int port, reg = sw_r32(priv->r->mac_force_mode_ctrl(port)); reg &= ~(0xf << 3); - // On the RTL930X, ports 24 to 27 are using an internal SerDes - if (port >=24 && port <= 27) { - sds_num = port - 18; // Port 24 mapped to SerDes 6, 25 to 7 ... + sds_num = priv->ports[port].sds_num; + pr_info("%s SDS is %d\n", __func__, sds_num); + if (sds_num >= 0) { switch (state->interface) { case PHY_INTERFACE_MODE_HSGMII: sds_mode = 0x12; @@ -781,6 +801,8 @@ static int rtl83xx_port_enable(struct dsa_switch *ds, int port, sw_w32_mask(0, BIT(port), RTL930X_L2_PORT_DABLK_CTRL); } + priv->ports[port].sds_num = rtl93xx_get_sds(phydev); + return 0; } diff --git a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.h b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.h index c9307458f8..1c55ff6fc9 100644 --- a/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.h +++ b/target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.h @@ -443,7 +443,7 @@ struct rtl838x_port { enum phy_type phy; bool is10G; bool is2G5; - u8 sds_num; + int sds_num; const struct dsa_port *dp; }; -- 2.30.2