[U-Boot] SATA/IDE/etc... init

[Wolfgang Denk]

Dear Mike Frysinger,

In message <200812110304.12784.vapier at gentoo.org> you wrote:
>
> the SATA/IDE/etc... layers seem to go against the u-boot policy when it comes
> to initialization.  in other words, if support for them is enabled, then they
> are unconditionally initialized in board code (see ide_init / sata_initialize
> in lib_*/board.c:board_init_r).  am i missing something or should these init
> functions be delayed until the sata/ide/whatever functions need them ?  or

Yes, you are right.

Blame this on me - this was inherited from the first implementation of
PCMCIA support on the MPC8xx, where I found it useful to see the state
when the sytem booted. I learned that leasson only later... Sorry.

> should they be made explicit like some commands where you first have to do
> "sata init" before you can access the device ?

Correct.

> this bugs me most because normally u-boot starts up nice & fast, but now that
> we've added SATA support, there's an annoying second or 3 pause while the disk
> is probed ...

Patches appreciated :-)

Best regards,

Wolfgang Denk

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