I'm a lazy "dog". A lot of board diagnostic, HW identification mechanism and manufacture utility are already there along with the VxWorks bootrom. I don't want to spend time in porting them. To turn on the Linux on the board through your U-Boot has, in deed, given me a lot more convenience in supporting other 3rd part software packages than VxWorks.

Thanks for you and the other developers to provide so great a tool. It is worth of a lot lot money.

Best Regards, Tony

-----邮件原件----- 发件人: wd@denx.de [mailto:wd@denx.de] 发送时间: 2008年2月3日 16:11 收件人: tony liu 抄送: u-boot-users@lists.sourceforge.net 主题: Re: 答复: [U-Boot-Users] Re: 答复: [U-Boot-Users] HELP: How to make PPC booting easier

In message BD41C75853FA124BB535FAB82C56E2910196EC7E@sons-exch05.salira.com you wrote:

One of my important targets to use u-boot is to let my board be able to boot Linux kernel as the following way:

1. Power ON
2. VxWorks Bootrom started from FLASH 0xFEF00100
3. Start U-Boot (BIN) from FLASH 0xFEFC0000
4. U-Boot starts Linux/Initrd/DTB following the command line configured

in VxWorks Bootrom (this is still not resolved yet)

Finally, my VxWorks bootrom can be selectable to boot a normal VxWorks image or a super package including Uboot and linux. And vice versa, if I put the U Boot's FLASH address as the CPU starting entry point, the u boot can also be selectable to boot any kinds of images.

Why are you making all this so complicated? What do you need the VxWorks Bootrom for? Just install U-Boot in flash, and let U-Boot boot either Linux or VxWorks.

Best regards,

Wolfgang Denk