From 981c497ae4e341442ff404971ed7da94f05b38c2 Mon Sep 17 00:00:00 2001 From: Yangyu Chen Date: Sun, 23 Apr 2023 20:27:17 +0800 Subject: [PATCH] net: phy: realtek: add led-link-select for RTL8221 RTL8221B PHYs will select the different speeds for 3 LEDs to 10M/100M/1G respectively by default. Some devices like TP-LINK TL-XDR6088/TL-XDR6086 have only one LED connects to the PHY chip LED0. If we didn't change the default settings, the LED will only blink at 10M speed. This patch allows configuring LED link select bitmask from DT. And it has been tested with TP-Link XDR6088 with different DT configurations. Signed-off-by: Yangyu Chen --- ...ltek-add-led-link-select-for-RTL8221.patch | 69 +++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 target/linux/generic/hack-5.15/766-net-phy-realtek-add-led-link-select-for-RTL8221.patch diff --git a/target/linux/generic/hack-5.15/766-net-phy-realtek-add-led-link-select-for-RTL8221.patch b/target/linux/generic/hack-5.15/766-net-phy-realtek-add-led-link-select-for-RTL8221.patch new file mode 100644 index 000000000..871d30f8b --- /dev/null +++ b/target/linux/generic/hack-5.15/766-net-phy-realtek-add-led-link-select-for-RTL8221.patch @@ -0,0 +1,69 @@ +From f9e17c264d316611c26b98ad1a3ca01c289c67b4 Mon Sep 17 00:00:00 2001 +From: Yangyu Chen +Date: Sun, 23 Apr 2023 20:06:41 +0800 +Subject: [PATCH] net: phy: realtek: add led-link-select for RTL8221 + +RTL8221B PHYs will select the different speeds for 3 LEDs to 10M/100M/1G +respectively by default. Some devices like TP-Link TL-XDR6088/TL-XDR6086 +have only one LED connects to the PHY chip LED0. If we didn't change the +default settings, the LED will only blink at 10M speed. + +This patch allows configuring LED link select bitmask from DT. And it +has been tested with TP-Link XDR6088 with different DT configurations. + +Signed-off-by: Yangyu Chen +--- + drivers/net/phy/realtek.c | 28 +++++++++++++++++++++++++++- + 1 file changed, 27 insertions(+), 1 deletion(-) + +--- a/drivers/net/phy/realtek.c ++++ b/drivers/net/phy/realtek.c +@@ -66,6 +66,10 @@ + #define RTL8221B_PHYCR1_ALDPS_EN BIT(2) + #define RTL8221B_PHYCR1_ALDPS_XTAL_OFF_EN BIT(12) + ++#define RTL8221B_NR_LEDS 3 ++#define RTL8221B_LED_LINK_SELECT 0xd032 ++#define RTL8221B_LED_LINK_SELECT_OFFSET 0x2 ++ + #define RTL8366RB_POWER_SAVE 0x15 + #define RTL8366RB_POWER_SAVE_ON BIT(12) + +@@ -885,6 +889,28 @@ static irqreturn_t rtl9000a_handle_inter + return IRQ_HANDLED; + } + ++static int rtl8221b_config_led(struct phy_device *phydev) { ++ struct device_node *node = phydev->mdio.dev.of_node; ++ u32 link_select[RTL8221B_NR_LEDS]; ++ int i, val; ++ ++ val = of_property_read_u32_array(node, "realtek,led-link-select", ++ link_select, RTL8221B_NR_LEDS); ++ ++ if (val) ++ return 0; ++ ++ for (i = 0; i < RTL8221B_NR_LEDS; i++) { ++ val = phy_write_mmd(phydev, RTL8221B_MMD_PHY_CTRL, ++ RTL8221B_LED_LINK_SELECT + i * RTL8221B_LED_LINK_SELECT_OFFSET, ++ link_select[i]); ++ if (val < 0) ++ return val; ++ } ++ ++ return 0; ++} ++ + static int rtl8221b_config_init(struct phy_device *phydev) + { + u16 option_mode; +@@ -932,7 +958,7 @@ static int rtl8221b_config_init(struct p + phy_read_mmd_poll_timeout(phydev, RTL8221B_MMD_SERDES_CTRL, 0x7587, + val, !(val & BIT(0)), 500, 100000, false); + +- return 0; ++ return rtl8221b_config_led(phydev); + } + + static struct phy_driver realtek_drvs[] = {