Question

我已经从u-boot-2013.01.y分支编译u-boot for versatilebp board（arm），我需要在此配置中不存在的fatload命令。我在qemu

下运行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freebsd内核的fat文件系统映像的文件。我可以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？或者它不可能/不支持该板？

Answer 1

对于多功能AB而言，或多或少地完成了这一点，这当然是可能的。最简单的方法是找到定义该板的命令集的位置，并通过defining the relevant CONFIG_CMD_* symbols破解所需的命令。在这种情况下，该地点为include/configs/versatile.h。

看看我2015.07的结帐时，我似乎已经添加了（其中一些（我认为我试图说服MMC当时工作），这些行：

#define CONFIG_CMD_FAT
#define CONFIG_DOS_PARTITION           1

我可以使用更多命令为arm多功能bp

1 个答案: