• am335x Lan8710a 双网口配置


    • 一、 经过调试, LAN8710A在 am335x 上面需要使用 GMII的模式,设备树 pin mux配置如下:

        // 下面是工作模式的配置,在睡眠模式下是配成GPIO模式
        162     cpsw_default: cpsw_default {
        163         pinctrl-single,pins = <
        164             /* Slave 1 */
        165             0x110 ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (J15) gmii1_rxer */
        166             0x114 ( PIN_OUTPUT         | MUX_MODE0 )    /* (J16) gmii1_txen */
        167             0x118 ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (J17) gmii1_rxdv */
        168             0x11c ( PIN_OUTPUT         | MUX_MODE0 )    /* (J18) gmii1_txd3 */
        169             0x120 ( PIN_OUTPUT         | MUX_MODE0 )    /* (K15) gmii1_txd2 */
        170             0x124 ( PIN_OUTPUT         | MUX_MODE0 )    /* (K16) gmii1_txd1 */
        171             0x128 ( PIN_OUTPUT         | MUX_MODE0 )    /* (K17) gmii1_txd0 */
        172             0x12c ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (K18) gmii1_txclk */
        173             0x130 ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (L18) gmii1_rxclk */
        174             0x134 ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (L17) gmii1_rxd3 */
        175             0x138 ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (L16) gmii1_rxd2 */
        176             0x13c ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (L15) gmii1_rxd1 */
        177             0x140 ( PIN_INPUT_PULLDOWN | MUX_MODE0 )    /* (M16) gmii1_rxd0 */
        178             0x74 ( PIN_INPUT_PULLDOWN  | MUX_MODE1 )    /* (U17) gpmc_wpn.gmii2_rxerr */
        179             0x40 ( PIN_OUTPUT          | MUX_MODE1 )    /* (R13) gpmc_a0.gmii2_txen */
        180             0x44 ( PIN_INPUT_PULLDOWN  | MUX_MODE1 )    /* (V14) gpmc_a1.gmii2_rxdv */
        181             0x58 ( PIN_INPUT_PULLDOWN  | MUX_MODE1 )    /* (U15) gpmc_a6.gmii2_txclk */
        182             0x5c ( PIN_INPUT_PULLDOWN  | MUX_MODE1 )    /* (T15) gpmc_a7.gmii2_rxclk */
        183             0x54 ( PIN_OUTPUT          | MUX_MODE1 )    /* (V15) gpmc_a5.gmii2_txd0 */
        184             0x50 ( PIN_OUTPUT          | MUX_MODE1 )    /* (R14) gpmc_a4.gmii2_txd1 */
        185             0x4c ( PIN_OUTPUT          | MUX_MODE1 )    /* (T14) gpmc_a3.gmii2_txd2 */
        186             0x48 ( PIN_OUTPUT          | MUX_MODE1 )    /* (U14) gpmc_a2.gmii2_txd3 */
        187             0x6c ( PIN_INPUT           | MUX_MODE1 )    /* (V17) gpmc_a11.gmii2_rxd0 */
        188             0x68 ( PIN_INPUT           | MUX_MODE1 )    /* (T16) gpmc_a10.gmii2_rxd1 */
        189             0x64 ( PIN_INPUT           | MUX_MODE1 )    /* (U16) gpmc_a9.gmii2_rxd2 */
        190             0x60 ( PIN_INPUT           | MUX_MODE1 )    /* (V16) gpmc_a8.gmii2_rxd3 */
        191         >;
        192     };
    
    • 二、 有关节点的配置如下:

        595 &mac {
        596     pinctrl-names = "default", "sleep";
        597     pinctrl-0 = <&cpsw_default>;
        598     pinctrl-1 = <&cpsw_sleep>;
        599     dual_emac = <1>;
        600     status = "okay";
        601 };
        602
        603 &davinci_mdio {
        604     pinctrl-names = "default", "sleep";
        605     pinctrl-0 = <&davinci_mdio_default>;
        606     pinctrl-1 = <&davinci_mdio_sleep>;
        607     status = "okay";
        608 };
        609
        610 &cpsw_emac0 {
        611     phy_id = <&davinci_mdio>, <0>;
        612     phy-mode = "mii";
        613     dual_emac_res_vlan = <1>;
        614 };
        615
        616 &cpsw_emac1 {
        617     phy_id = <&davinci_mdio>, <1>;
        618     phy-mode = "mii";
        619     dual_emac_res_vlan = <2>;
        620 };
    
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  • 原文地址:https://www.cnblogs.com/chenfulin5/p/8384186.html
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