我可以用更多命令轻松编译 u-boot for arm versatile bp

Question

我已经从 u-boot-2013.01.y 为 versatilebp 板（arm）编译了 u-boot，我需要这个配置中不存在的 fatload 命令。我是运行 qemu

下的 u-boot

DRAM:  128 MiB
WARNING: Caches not enabled
Using default environment

In:    serial
Out:   serial
Err:   serial
Net:   SMC91111-0
Warning: SMC91111-0 using MAC address from net device

VersatilePB # fat
Unknown command 'fat' - try 'help'
VersatilePB # help
?       - alias for 'help'
base    - print or set address offset
bdinfo  - print Board Info structure
bootm   - boot application image from memory
bootp   - boot image via network using BOOTP/TFTP protocol
cmp     - memory compare
cp      - memory copy
crc32   - checksum calculation
dhcp    - boot image via network using DHCP/TFTP protocol
env     - environment handling commands
erase   - erase FLASH memory
flinfo  - print FLASH memory information
go      - start application at address 'addr'
help    - print command description/usage
iminfo  - print header information for application image
loop    - infinite loop on address range
md      - memory display
mm      - memory modify (auto-incrementing address)
mtest   - simple RAM read/write test
mw      - memory write (fill)
nm      - memory modify (constant address)
ping    - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
protect - enable or disable FLASH write protection
reset   - Perform RESET of the CPU
setenv  - set environment variables
tftpboot- boot image via network using TFTP protocol
version - print monitor, compiler and linker version
VersatilePB #

我需要 fatload 来加载包含 fat 文件系统映像的文件，其中包含 freebsd 内核。我能以某种方式更改该板的编译配置以使用 fatload 命令编译 u-boot 吗？还是那块板 possible/not 不支持？

Answer 1

为 Versatile AB 或多或少地完成了此操作，这肯定是可能的。最简单的方法是找到该板的命令集的定义位置，然后通过 defining the relevant CONFIG_CMD_* symbols. In this case, that place is include/configs/versatile.h.

输入您想要的命令

查看我 2015.07 的结帐，我似乎添加了以下几行（我想我当时正试图说服 MMC 工作）：

#define CONFIG_CMD_FAT
#define CONFIG_DOS_PARTITION           1

我可以用更多命令轻松编译 u-boot for arm versatile bp

Can I easily compile u-boot with more commands for arm versatile bp

arm

freebsd

qemu

u-boot