Flash programmer via ethernet

Honored Contributor

21 years ago

Hi tns1,

Glad to hear things are working :-)

> I have not been able to download and run the supplied hello world example, though.

This is currently broken. The global pointer is not being handled properly ... I'll add

it to the TODO list ;-)

> A way to connect to the u-boot console over ethernet.

You could try configuring "net console" ... which basically sends console output to

a particular ipaddr:udp port (and accepts input on a particular port). I haven't tried it yet.

If you need some help you can post questions on the u-boot-users mailing list.

> A command that tells you where u-boot is executing from, and what system resources

> it is using.

There are a few commands that might have some of the info you need: "bdinfo", "flinfo", "irqinfo".

It's very easy to add custom commands to get precisely what you need using the

U_BOOT_CMD macro. You can see common/cmd_misc.c for some examples. Just implement

your custom commands in your board-specific directory.

> The custom board I need to port to has a different memory map and no SDRAM bank.

Not a problem. You _should_ be able to just customize the macros in your board's

config file.

> A little more description for the configuration options.

Most of the configuration options are described in the main README (although several

are admittedly a bit short on details). There is also some additional information in the doc

directory ... and lots of info that may be useful at:

> It is not clear if I simply remove CFG options, and what option controls where u-boot

> relocates to.

For basic memory macros, you should leave them defined with a length of zero. The relocation

address is controlled by the TEXT_BASE definition in the board-specific config.mk file.

See board/psyent/pk1c20/config.mk for example.

Regards,

--Scott

Forum Discussion