[U-Boot-Users] [PATCH 1/3] ppc: Report back the location we put the device tree if we dont boot

[Wolfgang Denk]

In message <1218004332-20311-1-git-send-email-galak at kernel.crashing.org> you wrote:
> Its useful to know where the device tree is if we have set 'autostart'
> to 'no.  We come back to the prompt after a boot command and we can
> than post process the device tree but we need to know where it was put
> report this back via the env variable 'bootm_fdtaddr'.

NAK.

The whole code sequence in bootm.c seems broken to me:

272         debug ("## Transferring control to Linux (at address %08lx) ...\n",
273                 (ulong)kernel);
274
275         show_boot_progress (15);
276
277 #if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
278         unlock_ram_in_cache();
279 #endif
280         if (!images->autostart)
281                 return ;
282
283 #if defined(CONFIG_OF_LIBFDT)


The debug() [272f] should come immediately before booting the kernel
(i. e. move below line 282) because it is supposed to show when we
branch to Linux. No other code should be inbetween.

And the (!images->autostart) test makes absolutely no sense here.
Documentation says:

	autostart: if set to "yes", an image loaded using the rarpb,
	bootp, dhcp, tftp, disk, or docb commands will be
	automatically started (by internally calling the bootm
	command).

The "autostart" field introduced with the new image stuff behaves very
different, and actually makes no sense to me at all.

Bartek, could you please comment what the intended behaviour was, and
how it relates to the documentated behaviour?

Best regards,

Wolfgang Denk

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Bus error -- driver executed.