am335x Lan8710a 雙網口配置
阿新 • • 發佈：2018-01-30
ins 參考 工作模式 模式 12c 技術分享 www gpio x64
一、 經過調試， LAN8710A在 am335x 上面需要使用 GMII的模式，設備樹 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、 有關節點的配置如下：
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 };三、有關 make menuconfig 的配置參考：
http://www.cnblogs.com/chenfulin5/p/8144686.html四、phy 的要選擇
am335x Lan8710a 雙網口配置