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我在设备树里面配置后感觉没有反应是为什么?板子是5728 easyEVM,我修改了am57xx-beagle-x15-common.dtsi里面的内容
&uart8 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&uart8_pins_default>;
};
&uart9 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&uart9_pins_default>;
};
uart8_pins_default: uart8_pins_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x34F4, (PIN_INPUT_PULLUP | MUX_MODE5)) /* vin1a_d0.uart8_rxd */
DRA7XX_CORE_IOPAD(0x34f8, (PIN_INPUT_PULLUP | MUX_MODE5)) /* vin2a_d1.uart8_txd */
>;
};
uart9_pins_default: uart9_pins_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD(0x37E8, (PIN_INPUT_PULLUP | MUX_MODE2)) /* uart1_ctsn.uart9_rxd */
DRA7XX_CORE_IOPAD(0x37EC, (PIN_INPUT_PULLUP | MUX_MODE2)) /* uart1_rtsn.uart9_txd */
>;
};
但这两个串口还是不能用
是我没改对地方吗? |
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