AM3352 u***检测不到这是为什么？怎么解决？

本帖最后由 一只耳朵怪 于 2018-6-5 15:47 编辑

使用的是3.8的内核 ， 在设备树里面做了下面的配置
am33xx.dtsi中
aliases [
u***0 = &u***0;
u***1 = &u***1;
phy0 = &u***0_phy;
phy1 = &u***1_phy;
];
u***: u***@47400000 [
compatible = "ti,am33xx-u***";
reg = <0x47400000 0x1000>;
ranges;
#address-cells = <1>;
#size-cells = <1>;
ti,hwmods = "u***_otg_hs";
status = "disabled";
u***_ctrl_mod: control@44e10620 [
compatible = "ti,am335x-u***-ctrl-module";
reg = <0x44e10620 0x10
0x44e10648 0x4>;
reg-names = "phy_ctrl", "wakeup";
status = "disabled";
];
u***0_phy: u***-phy@47401300 [
compatible = "ti,am335x-u***-phy";
reg = <0x47401300 0x100>;
reg-names = "phy";
status = "disabled";
ti,ctrl_mod = <&u***_ctrl_mod>;
];
u***0: u***@47401000 [
compatible = "ti,mu***-am33xx";
status = "disabled";
reg = <0x47401400 0x400
0x47401000 0x200>;
reg-names = "mc", "control";
interrupts = <18>;
interrupt-names = "mc";
dr_mode = "otg";
mentor,multipoint = <1>;
mentor,num-eps = <16>;
mentor,ram-bits = <12>;
mentor,power = <500>;
phys = <&u***0_phy>;
dmas = <&cppi41dma 0 0 &cppi41dma 1 0
&cppi41dma 2 0 &cppi41dma 3 0
&cppi41dma 4 0 &cppi41dma 5 0
&cppi41dma 6 0 &cppi41dma 7 0
&cppi41dma 8 0 &cppi41dma 9 0
&cppi41dma 10 0 &cppi41dma 11 0
&cppi41dma 12 0 &cppi41dma 13 0
&cppi41dma 14 0 &cppi41dma 0 1
&cppi41dma 1 1 &cppi41dma 2 1
&cppi41dma 3 1 &cppi41dma 4 1
&cppi41dma 5 1 &cppi41dma 6 1
&cppi41dma 7 1 &cppi41dma 8 1
&cppi41dma 9 1 &cppi41dma 10 1
&cppi41dma 11 1 &cppi41dma 12 1
&cppi41dma 13 1 &cppi41dma 14 1>;
dma-names =
"rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7",
"rx8", "rx9", "rx10", "rx11", "rx12", "rx13",
"rx14", "rx15",
"tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7",
"tx8", "tx9", "tx10", "tx11", "tx12", "tx13",
"tx14", "tx15";
];
u***1_phy: u***-phy@47401b00 [
compatible = "ti,am335x-u***-phy";
reg = <0x47401b00 0x100>;
reg-names = "phy";
status = "disabled";
ti,ctrl_mod = <&u***_ctrl_mod>;
];
u***1: u***@47401800 [
compatible = "ti,mu***-am33xx";
status = "disabled";
reg = <0x47401c00 0x400
0x47401800 0x200>;
reg-names = "mc", "control";
interrupts = <19>;
interrupt-names = "mc";
dr_mode = "otg";
mentor,multipoint = <1>;
mentor,num-eps = <16>;
mentor,ram-bits = <12>;
mentor,power = <500>;
phys = <&u***1_phy>;
dmas = <&cppi41dma 15 0 &cppi41dma 16 0
&cppi41dma 17 0 &cppi41dma 18 0
&cppi41dma 19 0 &cppi41dma 20 0
&cppi41dma 21 0 &cppi41dma 22 0
&cppi41dma 23 0 &cppi41dma 24 0
&cppi41dma 25 0 &cppi41dma 26 0
&cppi41dma 27 0 &cppi41dma 28 0
&cppi41dma 29 0 &cppi41dma 15 1
&cppi41dma 16 1 &cppi41dma 17 1
&cppi41dma 18 1 &cppi41dma 19 1
&cppi41dma 20 1 &cppi41dma 21 1
&cppi41dma 22 1 &cppi41dma 23 1
&cppi41dma 24 1 &cppi41dma 25 1
&cppi41dma 26 1 &cppi41dma 27 1
&cppi41dma 28 1 &cppi41dma 29 1>;
dma-names =
"rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7",
"rx8", "rx9", "rx10", "rx11", "rx12", "rx13",
"rx14", "rx15",
"tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7",
"tx8", "tx9", "tx10", "tx11", "tx12", "tx13",
"tx14", "tx15";
];
cppi41dma: dma-controller@47402000 [
compatible = "ti,am3359-cppi41";
reg = <0x47400000 0x1000
0x47402000 0x1000
0x47403000 0x1000
0x47404000 0x4000>;
reg-names = "glue", "controller", "scheduler", "queuemgr";
interrupts = <17>;
interrupt-names = "glue";
#dma-cells = <2>;
#dma-channels = <30>;
#dma-requests = <256>;
status = "disabled";
];
];


am335x-bone-common.dtsi中
u***0_pins_default: pinmux_u***0_pins [
pinctrl-single,pins = <
0x21c (0x00 | 0x00)/* (PIN_OUTPUT_PULLDOWN | MUX_MODE0)conf_u***0_drvvbus */
>;
];
&u*** [
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&u***0_pins_default>;
control@44e10620 [
status = "okay";
];
u***-phy@47401300 [
status = "okay";
];
u***@47401000 [
status = "okay";

dr_mode = "otg";
];
u***-phy@47401b00 [
status = "okay";
];
u***@47401800 [
status = "okay";
dr_mode = "host";
];
dma-controller@47402000 [
status = "okay";
];
];

但是u盘插入还是无法检测出来，请问一下可能是什么原因导致的。