get rid of MK_CMD_ENTRY macro; update doc/README.commandmaster
wdenk
22 years ago
parent
b37c7e5e5c
commit
0d4983930a
@ -1,103 +1,31 @@ |
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# |
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# The commands in this table are sorted alphabetically by the |
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# command name and in descending order by the command name string |
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# length. This is to prevent conflicts in command name parsing. |
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# Please ensure that new commands are added according to that rule. |
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# See $(TOPDIR)/common/command.c |
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# |
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######################## |
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# |
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# command length |
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# |
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######################## |
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askenv 8 |
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as 2 |
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autoscr 5 |
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base 2 |
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bdinfo 2 |
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bmp 3 |
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bootelf 7 |
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bootm 5 |
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bootp 5 |
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bootvx 6 |
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bootd 4 |
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break 2 |
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brginfo 3 |
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carinfo 3 |
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chpart 6 |
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cmp 3 |
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coninfo 5 |
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continue 4 |
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cp 2 |
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crc32 3 |
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date 3 |
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dcache 2 |
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dhcp 4 |
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dmainfo 3 |
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ds 2 |
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dtt 3 |
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echo 4 |
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eeprom 3 |
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erase 3 |
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fccinfo 3 |
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fdcboot 4 |
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flinfo 3 |
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fpga 4 |
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fsinfo 5 |
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fsload 5 |
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getdcr 6 # IBM 4XX DCR registers |
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go 2 |
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help 1 |
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i2cinfo 4 |
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i2c 3 |
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icache 2 |
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icinfo 3 |
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ide 3 |
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iminfo 3 |
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iopinfo 3 |
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irqinfo 3 |
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kgdb 4 |
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loadb 5 |
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loads 5 |
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loop 4 |
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ls 2 |
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mccinfo 3 |
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md 2 |
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memcinfo 4 |
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mii 3 |
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mm 2 |
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mtest 5 |
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muxinfo 3 |
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mw 2 |
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nand 3 |
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nboot 4 |
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next 4 |
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nm 2 |
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pciinfo 3 |
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pinit 4 |
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printenv 8 |
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protect 4 |
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rarpboot 4 |
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rdump 5 |
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reginfo 3 |
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reset 5 |
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run 3 |
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saveenv 4 |
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sccinfo 3 |
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scsiboot 5 |
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scsi 4 |
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siiinfo 3 |
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sitinfo 3 |
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siuinfo 3 |
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setdcr 6 # IBM 4XX DCR registers |
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setenv 6 |
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smcinfo 3 |
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spiinfo 3 |
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sspi 4 |
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stack 5 |
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step 4 |
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tftpboot 4 |
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usbboot 5 |
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usb 4 |
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version 4 |
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? 1 |
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Commands are added to U-Boot by creating a new command structure. |
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This is done by first including command.h |
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Then using the U_BOOT_CMD() macro to fill in a cmd_tbl_t struct. |
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U_BOOT_CMD(name,maxargs,repeatable,command,"usage","help") |
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name: is the name of the commad. THIS IS NOT a string. |
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maxargs: the maximumn numbers of arguments this function takes |
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command: Function pointer (*cmd)(struct cmd_tbl_s *, int, int, char *[]); |
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usage: Short description. This is a string |
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help: long description. This is a string |
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**** Behinde the scene ****** |
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The structure created is named with a special prefix (__u_boot_cmd_) |
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and placed by the linker in a special section. |
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This makes it possible for the final link to extract all commands |
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compiled into any object code and construct a static array so the |
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command can be found in an array starting at __u_boot_cmd_start. |
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If a new board is defined do not forget to define the command section |
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by writing in u-boot.lds ($(TOPDIR)/board/boardname/u-boot.lds) these |
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3 lines: |
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__u_boot_cmd_start = .; |
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.u_boot_cmd : { *(.u_boot_cmd) } |
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__u_boot_cmd_end = .; |
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