编程和配置 U-boot

Question

首先，这个问题与嵌入式操作系统的创建有关，确切地说，Linux kernel + u-boot + FSBL + device tree + FS compiled to 运行手臂 A9.

上下文：

在 Zynq 设备（特别是 Pynq 板）上启动这个（刚刚创建的）OS 后，Uart 给出这些消息：

No valid device tree binary found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>
initcall sequence 04061cc0 failed at call 04045e9c (err=-1)
### ERROR ### Please RESET the board ###

问题：

很明显，错误是在u-boot.elf的生成上：它试图使用一个无法找到的设备树，但是在BOOT文件夹中，设备树存在名字 devicetree.dtb。什么会导致这个问题？我可以尝试修改哪个配置文件以指向正确的设备树？有什么建议吗？

一些细节：

只是为了添加更多信息，

1) 第一阶段引导加载程序似乎工作正常并打印：

Xilinx First Stage Boot Loader 
Release 2017.1  Jan 25 2018-18:26:02
Devcfg driver initialized 
Silicon Version 3.1
Boot mode is SD
SD: rc= 0
SD Init Done 
Flash Base Address: 0xE0100000
Reboot status register: 0x60600000
Multiboot Register: 0x0000C000
Image Start Address: 0x00000000
Partition Header Offset:0x00000C80
Partition Count: 4
Partition Number: 1
Header Dump
Image Word Len: 0x000F6EC0
Data Word Len: 0x000F6EC0
Partition Word Len:0x000F6EC0
Load Addr: 0x00000000
Exec Addr: 0x00000000
Partition Start: 0x000065D0
Partition Attr: 0x00000020
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFFD14B7E
Bitstream
In FsblHookBeforeBitstreamDload function 
PCAP:StatusReg = 0x40000A30
PCAP:device ready
PCAP:Clear done
Level Shifter Value = 0xA 
Devcfg Status register = 0x40000A30 
PCAP:Fabric is Initialized done
PCAP register dump:
PCAP CTRL 0xF8007000: 0x4C00E07F
PCAP LOCK 0xF8007004: 0x0000001A
PCAP CONFIG 0xF8007008: 0x00000508
PCAP ISR 0xF800700C: 0x0802000B
PCAP IMR 0xF8007010: 0xFFFFFFFF
PCAP STATUS 0xF8007014: 0x00000A30
PCAP DMA SRC ADDR 0xF8007018: 0x00100001
PCAP DMA DEST ADDR 0xF800701C: 0xFFFFFFFF
PCAP DMA SRC LEN 0xF8007020: 0x000F6EC0
PCAP DMA DEST LEN 0xF8007024: 0x000F6EC0
PCAP ROM SHADOW CTRL 0xF8007028: 0xFFFFFFFF
PCAP MBOOT 0xF800702C: 0x0000C000
PCAP SW ID 0xF8007030: 0x00000000
PCAP UNLOCK 0xF8007034: 0x757BDF0D
PCAP MCTRL 0xF8007080: 0x30800100

DMA Done ! 

FPGA Done ! 
In FsblHookAfterBitstreamDload function 
Partition Number: 2
Header Dump
Image Word Len: 0x0001BB09
Data Word Len: 0x0001BB09
Partition Word Len:0x0001BB09
Load Addr: 0x04000000
Exec Addr: 0x04000000
Partition Start: 0x000FD490
Partition Attr: 0x00000010
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xF7EAF7E3
Application
Partition Number: 3
Header Dump
Image Word Len: 0x00000A05
Data Word Len: 0x00000A05
Partition Word Len:0x00000A05
Load Addr: 0x02A00000
Exec Addr: 0x00000000
Partition Start: 0x00118FA0
Partition Attr: 0x00000012
Partition Checksum Offset: 0x00000000
Section Count: 0x00000001
Checksum: 0xFD4E4FCD
Application
Handoff Address: 0x04000000
In FsblHookBeforeHandoff function 
SUCCESSFUL_HANDOFF
FSBL Status = 0x1
No valid device tree binary found - please append one to U-Boot binary, use u-boot-dtb.bin or define CONFIG_OF_EMBED. For sandbox, use -d <file.dtb>
initcall sequence 04061cc0 failed at call 04045e9c (err=-1)
### ERROR ### Please RESET the board ###

2) 我从原始 U-boot 存储库修改的唯一文件是 zynq-common.h。我这样做是因为我必须使用 Linaro FS 而不是默认的 initfsram。这里修改了部分文件（当然，正如你所理解的，我使用的是 SD 卡，修改是针对 sdboot）：

/* Default environment */
#ifndef CONFIG_EXTRA_ENV_SETTINGS
#define CONFIG_EXTRA_ENV_SETTINGS   \
    "fit_image=fit.itb[=12=]"       \
    "load_addr=0x2000000[=12=]"     \
    "fit_size=0x800000[=12=]"       \
    "flash_off=0x100000[=12=]"      \
    "nor_flash_off=0xE2100000[=12=]"    \
    "fdt_high=0x20000000[=12=]"     \
    "initrd_high=0x20000000[=12=]"  \
    "loadbootenv_addr=0x2000000[=12=]" \
    "bootenv=uEnv.txt[=12=]" \
    "bootenv_dev=mmc[=12=]" \
    "loadbootenv=load ${bootenv_dev} 0 ${loadbootenv_addr} ${bootenv}[=12=]" \
    "importbootenv=echo Importing environment from ${bootenv_dev} ...; " \
        "env import -t ${loadbootenv_addr} $filesize[=12=]" \
    "bootenv_existence_test=test -e ${bootenv_dev} 0 /${bootenv}[=12=]" \
    "setbootenv=if env run bootenv_existence_test; then " \
            "if env run loadbootenv; then " \
                "env run importbootenv; " \
            "fi; " \
        "fi; [=12=]" \
    "sd_loadbootenv=set bootenv_dev mmc && " \
            "run setbootenv [=12=]" \
    "usb_loadbootenv=set bootenv_dev usb && usb start && run setbootenv [=12=]" \
    "preboot=if test $modeboot = sdboot; then " \
            "run sd_loadbootenv; " \
            "echo Checking if uenvcmd is set ...; " \
            "if test -n $uenvcmd; then " \
                "echo Running uenvcmd ...; " \
                "run uenvcmd; " \
            "fi; " \
        "fi; [=12=]" \
    "norboot=echo Copying FIT from NOR flash to RAM... && " \
        "cp.b ${nor_flash_off} ${load_addr} ${fit_size} && " \
        "bootm ${load_addr}[=12=]" \
    "kernel_image=uImage[=12=]" \
    "kernel_load_address=0x2080000[=12=]"   \
    "ramdisk_image=uramdisk.image.gz[=12=]" \
    "ramdisk_load_address=0x4000000[=12=]"  \
    "devicetree_image=devicetree.dtb[=12=]" \
    "devicetree_load_address=0x2000000[=12=]"   \
    "sdboot=if mmcinfo; then "  \
            "echo Copying Linux from SD to RAM... && "  \
            "load mmc 0 ${kernel_load_address} ${kernel_image} && " \
            "load mmc 0 ${devicetree_load_address} ${devicetree_image} && " \
            "bootm ${kernel_load_address} - ${devicetree_load_address}; "   \
        "fi[=12=]"  \
    "jtagboot=echo TFTPing FIT to RAM... && " \
        "tftpboot ${load_addr} ${fit_image} && " \
        "bootm ${load_addr}[=12=]" \
    "usbboot=if usb start; then " \
            "echo Copying FIT from USB to RAM... && " \
            "load usb 0 ${load_addr} ${fit_image} && " \
            "bootm ${load_addr}; fi[=12=]" \
        DFU_ALT_INFO
#endif

此外，如果需要，我可以分享其他使用的配置文件。

如果您认为 Whosebug 不适合提出此类问题，请告诉我在哪里可以提出问题，我会转到其他论坛。感谢您花时间阅读问题。

Answer 1

参考link，如果zynq_artyz7_defconfig用于你的pynq板是的，根据你给出的构建命令查看makefile，你还需要在[中查看CONFIG_SPL_FS_LOAD_PAYLOAD_NAME =14=].h

编程和配置 U-boot

Programming and configuring the U-boot

hardware

linux-kernel

embedded-linux

u-boot

device-tree