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linux - macb ff0e0000.ethernet eth0 : Could not attach to PHY

转载 作者:太空宇宙 更新时间:2023-11-04 12:17:58 33 4
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在 Zynq Ultrascale+(主板 ZCU102 版本 1)上启动基于 Linux 的操作系统并按照 here 中的描述配置内核, 具有由 Vivado SDK 2017.2 自动生成的设备树,如下所示:

    gem0: ethernet@ff0b0000 {
compatible = "cdns,zynqmp-gem";
status = "disabled";
interrupt-parent = <0x4>;
interrupts = <0x0 0x39 0x4 0x0 0x39 0x4>;
reg = <0x0 0xff0b0000 0x0 0x1000>;
clock-names = "pclk", "tx_clk", "hclk";
#address-cells = <0x1>;
#size-cells = <0x0>;
#stream-id-cells = <0x1>;
iommus = <0x8 0x874>;
power-domains = <0xd>;
clocks = <0x3 0x2d 0x3 0x2d 0x3 0x31>;
};

gem1: ethernet@ff0c0000 {
compatible = "cdns,zynqmp-gem";
status = "disabled";
interrupt-parent = <0x4>;
interrupts = <0x0 0x3b 0x4 0x0 0x3b 0x4>;
reg = <0x0 0xff0c0000 0x0 0x1000>;
clock-names = "pclk", "tx_clk", "hclk";
#address-cells = <0x1>;
#size-cells = <0x0>;
#stream-id-cells = <0x1>;
iommus = <0x8 0x875>;
power-domains = <0xe>;
clocks = <0x3 0x2e 0x3 0x2e 0x3 0x32>;
};

gem2: ethernet@ff0d0000 {
compatible = "cdns,zynqmp-gem";
status = "disabled";
interrupt-parent = <0x4>;
interrupts = <0x0 0x3d 0x4 0x0 0x3d 0x4>;
reg = <0x0 0xff0d0000 0x0 0x1000>;
clock-names = "pclk", "tx_clk", "hclk";
#address-cells = <0x1>;
#size-cells = <0x0>;
#stream-id-cells = <0x1>;
iommus = <0x8 0x876>;
power-domains = <0xf>;
clocks = <0x3 0x2f 0x3 0x2f 0x3 0x33>;
};

gem3: ethernet@ff0e0000 {
compatible = "cdns,zynqmp-gem";
status = "okay";
interrupt-parent = <0x4>;
interrupts = <0x0 0x3f 0x4 0x0 0x3f 0x4>;
reg = <0x0 0xff0e0000 0x0 0x1000>;
clock-names = "pclk", "hclk", "tx_clk", "rx_clk";
#address-cells = <0x1>;
#size-cells = <0x0>;
#stream-id-cells = <0x1>;
iommus = <0x8 0x877>;
power-domains = <0x10>;
clocks = <0x3 0x1f 0x3 0x34 0x3 0x30 0x3 0x34>;
phy-mode = "rgmii-id";
xlnx,ptp-enet-clock = <0x0>;
};

启动时,内核消息之一是:

macb ff0e0000.ethernet eth0: Could not attach to PHY

并且,如果您执行:

ifconfig -a

shell 提示:

root@linaro-developer:~# ifconfig -a
can0: flags=128<NOARP> mtu 16
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 10 (UNSPEC)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 11

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 6 bytes 372 (372.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6 bytes 372 (372.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

sit0: flags=128<NOARP> mtu 1480
sit txqueuelen 1 (IPv6-in-IPv4)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

没有伦理存在。关于如何解决该问题的建议?

最佳答案

找到的解决方案:

需要在system-top.dts(Vivado自动生成)中添加“zcu102-revb.dtsi”文件,方法如下:

/*
* CAUTION: This file is automatically generated by Xilinx.
* Version:
* Today is: Wed Sep 13 12:25:12 2017
*/


/dts-v1/;
/include/ "zynqmp.dtsi"
/include/ "zynqmp-clk-ccf.dtsi"
/include/ "zcu102-revb.dtsi"
/include/ "pl.dtsi"
/include/ "pcw.dtsi"

....etc....

请注意,该文件可以在“xilinx-zcu102-zu9-es2-rev1.0-2017.2”包中找到(找到它 here, in the Xilinx webpage )。

也可以在“linux-xlnx/arch/arm64/boot/dts/xilinx/”文件夹中的内核 linux 源文件中找到它。

生成新的设备树后,就可以使用 eth0 和内核提示:

macb ff0e0000.ethernet eth0: Cadence GEM rev 0x50070106 at 0xff0e0000 irq 31 (00:0a:35:03:77:52)

此外,我刚刚在 Xilinx forum 中发布了答案.

关于linux - macb ff0e0000.ethernet eth0 : Could not attach to PHY,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/46907086/

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