RK3566代码之前适配的1000M IC RTL8211F ,现在需要在之前的基础上修改PHY IC 为裕泰的YT8512C----------------------------------------------------------------------+//将1000M 的配置关掉,改为100M 配置,查看RK3566 资料关于以太网的配置即可知道如何修改#if 0&gmac1 {phy-mode = "rgmii";clock_in_out = "input";snps,reset-gpio = ;snps,reset-active-low;/* Reset time is 20ms, 100ms for rtl8211f */snps,reset-delays-us = ;assigned-clocks = , ;assigned-clock-parents =, ;assigned-clock-rates = , ;pinctrl-names = "default";pinctrl-0 = ;tx_delay = ;rx_delay = ;phy-handle = ;status = "okay";};#else//gmac1m0&gmac1_clkin {clock-frequency = ;};&gmac1 {phy-mode = "rmii";clock_in_out = "input";snps,reset-gpio = ;snps,reset-active-low;/* Reset time is 20ms, 100ms for rtl8211f */snps,reset-delays-us = ;assigned-clocks = , ;assigned-clock-parents = , ;//assigned-clock-rates = , ;pinctrl-names = "default";pinctrl-0 = ;//tx_delay = ;//rx_delay = ;phy-handle = ;status = "okay";};#endif+//rgmii 1000M 改为100M-&mdio1 {-rgmii_phy1: phy@0 {-compatible = "ethernet-phy-ieee802.3-c22";-reg = ;-};-};+&mdio1 {+rmii_phy1: phy@0 {+compatible = "ethernet-phy-ieee802.3-c22";+reg = ;+};+};//修改1000M 为100M ETH 的VDDIO 需要从1.8V 改为3.3V&pmu_io_domains {status = "okay";pmuio2-supply = ;vccio1-supply = ;vccio3-supply = ;vccio4-supply = ;vccio5-supply = ;-vccio6-supply = ;+vccio6-supply = ;vccio7-supply = ;};-----------------------------[ 23.957084] rk_gmac-dwmac fe010000.ethernet eth0: No Safety Features support found[ 23.957124] rk_gmac-dwmac fe010000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported[ 23.958316] rk_gmac-dwmac fe010000.ethernet eth0: registered PTP clock[ 23.960237] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready[ 1609.817567] rk_gmac-dwmac fe010000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx[ 1609.817709] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready-----------------------------参照文档修改,发现以太网初始化正常,节点eth0 正常生成,也能够ping通数据2.接下来需要修改 以太网的网络接口状态灯:根据数据规格书:LED0 0x40c0寄存器写0x30 LED1 0x40c3寄存器写0x1300commit bd71fd55f47f18acb35f8974ebaf6dd696ba7738Author: amediatech Date: Wed Dec 27 17:53:17 2023 +0800modify led controldiff --git a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_main.cindex e75d44b987..f1f304e6f2 100644--- a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c+++ b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c@@ -26,6 +26,7 @@#include  #include +#include  #include  #include  #include @@ -57,7 +58,21 @@#defineSTMMAC_ALIGN(x)ALIGN(ALIGN(x, SMP_CACHE_BYTES), 16) #defineTSO_MAX_BUFF_SIZE(SZ_16K - 1)-+#define REG_DEBUG_ADDR_OFFSET 0x1e+#define REG_DEBUG_DATA0x1f+#define YT8512_LED0_ACT_BLK_IND 0x1000+#define YT8512_LED0_DIS_LED_AN_TRY0x0001+#define YT8512_LED0_BT_BLK_EN 0x0002+#define YT8512_LED0_HT_BLK_EN 0x0004+#define YT8512_LED0_COL_BLK_EN0x0008+#define YT8512_LED0_BT_ON_EN0x0010+#define YT8512_LED1_BT_ON_EN0x0010+#define YT8512_LED1_TXACT_BLK_EN0x0100+#define YT8512_LED1_RXACT_BLK_EN0x0200+#define YT8512_EXTREG_LED00x40c0+#define YT8512_EXTREG_LED10x40c3+//#define RTL_8211F_PHY_ID0x001cc916+#define YT8512C_PHY_ID0x00000128 /* Module parameters */ #define TX_TIMEO5000 static int watchdog = TX_TIMEO;@@ -4270,6 +4285,122 @@ static int stmmac_hw_init(struct stmmac_priv *priv)return 0; }+#if (KERNEL_VERSION(5, 5, 0) > LINUX_VERSION_CODE)+static inline void phy_lock_mdio_bus(struct phy_device *phydev)+{+#if (KERNEL_VERSION(4, 5, 0) > LINUX_VERSION_CODE)+mutex_lock(&phydev->bus->mdio_lock);+#else+mutex_lock(&phydev->mdio.bus->mdio_lock);+#endif+}+ +static inline void phy_unlock_mdio_bus(struct phy_device *phydev)+{+#if (KERNEL_VERSION(4, 5, 0) > LINUX_VERSION_CODE)+mutex_unlock(&phydev->bus->mdio_lock);+#else+mutex_unlock(&phydev->mdio.bus->mdio_lock);+#endif+}+#endif++#if (KERNEL_VERSION(4, 16, 0) > LINUX_VERSION_CODE)+static inline int __phy_read(struct phy_device *phydev, u32 regnum)+{+#if (KERNEL_VERSION(4, 5, 0) > LINUX_VERSION_CODE)+struct mii_bus *bus = phydev->bus;+int addr = phydev->addr;+return bus->read(bus, phydev->addr, regnum);+#else+struct mii_bus *bus = phydev->mdio.bus;+int addr = phydev->mdio.addr;+#endif+return bus->read(bus, addr, regnum);+}++static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)+{+#if (KERNEL_VERSION(4, 5, 0) > LINUX_VERSION_CODE)+struct mii_bus *bus = phydev->bus;+int addr = phydev->addr;+#else+struct mii_bus *bus = phydev->mdio.bus;+int addr = phydev->mdio.addr;+#endif+return bus->write(bus, addr, regnum, val);+}+#endif++static int ytphy_read_ext(struct phy_device *phydev, u32 regnum)+{+int ret;++phy_lock_mdio_bus(phydev);+ret = __phy_write(phydev, REG_DEBUG_ADDR_OFFSET, regnum);+if (ret < 0)+goto err_handle;+ +ret = __phy_read(phydev, REG_DEBUG_DATA);+if (ret < 0)+goto err_handle;++err_handle:+phy_unlock_mdio_bus(phydev);+return ret;+}+ +static int ytphy_write_ext(struct phy_device *phydev, u32 regnum, u16 val)+{+int ret;+ +phy_lock_mdio_bus(phydev);+ret = __phy_write(phydev, REG_DEBUG_ADDR_OFFSET, regnum);+if (ret < 0)+goto err_handle;+ +ret = __phy_write(phydev, REG_DEBUG_DATA, val);+if (ret < 0)+goto err_handle;++err_handle:+phy_unlock_mdio_bus(phydev);+return ret;+}+++static int phy_yt8512c_led_fixup(struct phy_device *phydev)+{+int ret;+int val;+int mask;+printk("-------------------------%s in.\n", __func__);+val = ytphy_read_ext(phydev, YT8512_EXTREG_LED0); //GREEN+printk("--------------------YT8512_EXTREG_LED0 read val is %d.\n",val);//785 = 0x311;+if (val < 0)+return val;+//need set 0x30+val |= YT8512_LED0_ACT_BLK_IND;+mask = YT8512_LED0_DIS_LED_AN_TRY | YT8512_LED0_BT_BLK_EN | +YT8512_LED0_HT_BLK_EN | YT8512_LED0_COL_BLK_EN | +YT8512_LED0_BT_ON_EN;+val &= ~mask;+printk("--------------------YT8512_EXTREG_LED0 write val is %d.\n",val);//800 = 0x320+ret = ytphy_write_ext(phydev, YT8512_EXTREG_LED0, 0x30);+if (ret < 0)+return ret;+val = ytphy_read_ext(phydev, YT8512_EXTREG_LED1); //YELLOW +printk("--------------------YT8512_EXTREG_LED1 read val is %d.\n",val);+if (val dev, "%s: failed debugFS registration\n", __func__); #endif-+ret = phy_register_fixup_for_uid(YT8512C_PHY_ID, 0xffffffff, phy_yt8512c_led_fixup);+if (ret){+printk("Cannot register PHY board fixup.\n");+} return ret;error_netdev_register: