TI中文支持网Part Number:AM3359
只使用一个PRU网口（PRU1），设备树需要怎么修改.
Nancy Wang：
请问使用的SDK版本是多少？
Documentation/devicetree/bindings/net/ti-prueth.txt 中有 Example (am572x-idk board, single-emac) 的示例。
更多详细内容请查看：
software-dl.ti.com/…/PRU-ICSS_Ethernet.html
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1 1：
ti-processor-sdk-linux-rt-am335x-evm-04.03.00.05，单个PRU网口是不是需要修改内核驱动
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Nancy Wang：
1 1 说：单个PRU网口是不是需要修改内核驱动
内核驱动应该不需要修改，建议先修改设备树看一下有没有问题，如果有问题我再帮您升级确认。
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1 1：
aliases { ethernet2 = &pruss_emac1; };
pruss_eth { compatible = "ti,am3359-prueth"; pruss = <&pruss>; sram = <&ocmcram>; interrupt-parent = <&pruss_intc>; status = "okay"; /*ZJJ modify,before :disabled*/
pinctrl-0 = <&pruss_eth_default>; pinctrl-names = "default";
emac1: ethernet-mii1 { phy-handle = <&pruss_eth1_phy>; phy-mode = "mii"; interrupts = <21>, <23>; interrupt-names = "rx", "tx"; /* Filled in by bootloader */ local-mac-address = [00 00 00 00 00 00]; }; };
设备树修改过了，应该没问题
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Nancy Wang：
目前是无法通信吗？什么现象？
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1 1：
可以识别到phy芯片，但是ifconfig查看不到
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Nancy Wang：
请将相关的log信息贴上来。
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1 1：
[ 1.146266] davinci_mdio 4a332400.mdio: davinci mdio revision 1.6[ 1.152404] libphy: 4a332400.mdio: probed[ 1.157816] davinci_mdio 4a332400.mdio: phy[1]: device 4a332400.mdio:01, driver unknown[ 1.167786] remoteproc remoteproc1: 4a334000.pru0 is available[ 1.173780] pru-rproc 4a334000.pru0: PRU rproc node /ocp/pruss_soc_bus@4a326000/pruss@4a300000/pru@4a334000 probed successfully[ 1.185829] remoteproc remoteproc2: 4a338000.pru1 is available[ 1.191780] pru-rproc 4a338000.pru1: PRU rproc node /ocp/pruss_soc_bus@4a326000/pruss@4a300000/pru@4a338000 probed successfully
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[ 8.873772] prueth pruss_eth: pruss MC Mask 0:0:0:0:0:0[ 8.902558] omap-sham 53100000.sham: hw accel on OMAP rev 4.3[ 8.989677] prueth pruss_eth: could not get ptp tx irq[ 9.007133] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2[ 9.022957] omap-aes 53500000.aes: will run requests pump with realtime priority[ 9.280123] prueth pruss_eth: pruss MC Mask 0:0:0:0:0:0[ 9.359727] prueth pruss_eth: could not get ptp tx irq Starting Network Service…[ 9.889153] prueth pruss_eth: pruss MC Mask 0:0:0:0:0:0[ 9.892281] remoteproc remoteproc0: powering up wkup_m3[ OK ] Started Kernel Logging Service.[ 10.025726] prueth pruss_eth: could not get ptp tx irq[ 10.093642] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 224300[ 10.093917] remoteproc remoteproc0: remote processor wkup_m3 is now up[ 10.093971] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x192
……
AM335x-Tronlong login: root (automatic login)root@AM335x-Tronlong:~# ifconfig -alo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1%763852/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:320 errors:0 dropped:0 overruns:0 frame:0 TX packets:320 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:24320 (23.7 KiB) TX bytes:24320 (23.7 KiB)
sit0 Link encap:IPv6-in-IPv4 NOARP MTU:1480 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@AM335x-Tronlong:~#
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Nancy Wang：
好的，感谢提供信息，你是指通过ifconfig -a查不到对应的网口是吗？通过ethtool eth0/1指令能查到信息吗？
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1 1：
是的，我看好像是pru的驱动没有执行，prueth.c这里没有执行
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1 1：
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1 1：
ethtool eth0/1指令也查看不到
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Nancy Wang：
我将您的问题升级到了英文论坛，请关注：
e2e.ti.com/…/am3359-pru-ethernet-configuration
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Nancy Wang：
英文论坛已有回复，请参考回复，另外建议您可以升级到最新SDK版本再试一下。
