On Mon, Apr 29, 2013 at 7:37 PM, li guang <[email protected]> wrote:
> Thanks! > I should thank you :-) You finally motivated me to start a wiki page for this stuff: http://www.coreboot.org/Exynos5 I want to know why coreboot force to boot a payload? > can't we skip this payload(by changing hardwaremain())? > or can we write a simple pseudo payload? > You will need a payload. If you wish to try a simple pseudo payload, the "hello world" example for libpayload would be a good start: http://www.coreboot.org/Libpayload . The term "payload" refers to the code which runs after coreboot, so you will need one. Unlike pmon2000, u-boot, uefi, etc, coreboot does not attempt to function as an OS in any capacity. It does not include an interactive console or a network server. It is intended to perform very basic hardware initialization only. Everything else is the responsibility of the payload. The "payload" may be a Linux kernel if you can fit it on the ROM. As Vladimir pointed out, this is only 512KB. If you have a very small kernel then you may simply set it as the payload. -- David Hendricks (dhendrix) Systems Software Engineer, Google Inc.
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