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部件号：processor-SDK-J721E “线程：测试”中讨论的其它部件
您好，
我正在设置自己的 EVM，使其作为 Linux SDK 之后的端点运行(我正在使用 SDK 8.0)，但我遇到了一些问题。
1.输入时
ls /sys/class/pci_epc/在 EVM 上，我看不到输出“2900000．PCIe-EP”。 当我尝试将测试设备绑定到 EP 控制器时，此问题将在以后出现：
root@j7-evm:/sys/kernel/config/pci_ep# ln -s functions/pci_epf_test/func1 controllers/2900000.pcie-ep/
2.我根据7.x SDK (5.4内核)小节中的说明修改了 DTS 文件，并重建了内核，并根据 SDK 3.2.1中的说明复制了这些文件。 (我没有修改为 EP 启用所必需的驱动程序配置变量，因为默认情况下，这些变量都设置为=y)。 但是，在启动 EVM 时，如果将新映像和 DTB 文件复制到 rootfs/boot，则会显示以下错误：
Welcome to minicom 2.7.1
OPTIONS: I18n
Compiled on Aug 13 2017, 15:25:34.
Port /dev/ttyUSB0, 20:59:06
Press CTRL-A Z for help on special keys
U-Boot SPL 2021.01-g53e79d0e89 (Aug 04 2021 - 23:32:00 +0000)
Model: Texas Instruments K3 J721E SoC
Board: J721EX-PM2-SOM rev E8
SYSFW ABI: 3.1 (firmware rev 0x0015 '21.5.0--v2021.05 (Terrific Llam')
Trying to boot from MMC2
Starting ATF on ARM64 core...
NOTICE: BL31: v2.5(release):08.00.00.004-dirty
NOTICE: BL31: Built : 22:30:09, Aug 4 2021
U-Boot SPL 2021.01-g53e79d0e89 (Aug 04 2021 - 22:33:28 +0000)
Model: Texas Instruments K3 J721E SoC
Board: J721EX-PM2-SOM rev E8
SYSFW ABI: 3.1 (firmware rev 0x0015 '21.5.0--v2021.05 (Terrific Llam')
Detected: J7X-BASE-CPB rev E3
Detected: J7X-VSC8514-ETH rev E2
Trying to boot from MMC2
U-Boot 2021.01-g53e79d0e89 (Aug 04 2021 - 22:33:28 +0000)
SoC: J721E SR1.0
Model: Texas Instruments K3 J721E SoC
Board: J721EX-PM2-SOM rev E8
DRAM: 4 GiB
Flash: 0 Bytes
MMC: sdhci@4f80000: 0, sdhci@4fb0000: 1
In: serial@2800000
Out: serial@2800000
Err: serial@2800000
Detected: J7X-BASE-CPB rev E3
Detected: J7X-VSC8514-ETH rev E2
Net: am65_cpsw_nuss_slave ethernet@46000000: K3 CPSW: nuss_ver: 0x6BA00101 cpsw_ver: 0x0
eth0: ethernet@46000000
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc1 is current device
SD/MMC found on device 1
Failed to load 'boot.scr'
483 bytes read in 7 ms (67.4 KiB/s)
Loaded env from uEnv.txt
Importing environment from mmc1 ...
Running uenvcmd ...
1 bytes read in 9 ms (0 Bytes/s)
Already setup.
k3_r5f_rproc r5f@41000000: Core 1 is already in use. No rproc commands work
k3_r5f_rproc r5f@41400000: Core 2 is already in use. No rproc commands work
2555068 bytes read in 120 ms (20.3 MiB/s)
Load Remote Processor 2 with data@addr=0x82000000 2555068 bytes: Success!
506776 bytes read in 36 ms (13.4 MiB/s)
Load Remote Processor 3 with data@addr=0x82000000 506776 bytes: Success!
Failed to load '/lib/firmware/j7-main-r5f1_0-fw'
Failed to load '/lib/firmware/j7-main-r5f1_1-fw'
1579120 bytes read in 77 ms (19.6 MiB/s)
Load Remote Processor 6 with data@addr=0x82000000 1579120 bytes: Success!
1579120 bytes read in 80 ms (18.8 MiB/s)
Load Remote Processor 7 with data@addr=0x82000000 1579120 bytes: Success!
10399672 bytes read in 444 ms (22.3 MiB/s)
Load Remote Processor 8 with data@addr=0x82000000 10399672 bytes: Success!
19137024 bytes read in 780 ms (23.4 MiB/s)
73284 bytes read in 15 ms (4.7 MiB/s)
10737 bytes read in 13 ms (805.7 KiB/s)
failed on fdt_overlay_apply(): FDT_ERR_NOTFOUND
base fdt does did not have a /__symbols__ node
make sure you've compiled with -@
ERROR: Did not find a cmdline Flattened Device Tree
Could not find a valid device tree
=>
我尝试重置环境，但不起作用。 我发现一些帖子存在类似问题，但它们与我的 EVM-issue 不匹配，因此我希望 TI 团队能就如何解决这两个问题提供一些反馈/建议。
请提前感谢。
