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From: DaveKucharczyk <david.kucharczyk@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] porting u-boot, few final questions
Date: Mon, 10 Nov 2014 13:45:12 -0700 (MST)	[thread overview]
Message-ID: <1415652312700-195451.post@n7.nabble.com> (raw)
In-Reply-To: <5460FBE0.3070506@mail.bg>

Update: my board_late_init() function wasn?t working because I defined
BOARD_LATE_INIT instead of CONFIG_BOARD_LATE_INIT. Doh!

Since arch/arm/lib/board.c file is being removed, and when
CONFIG_SYS_GENERIC_BOARD is defined, we are now using?
common/board_f.c (for pre-relocation init)
common/board_r.c (for post-relocation init)

So my board file sequence is (in order of calling sequence according to the
above two files)?

1.	board_early_init_f() ? needed to setup my uart, otherwise early output is
missed
2.	checkboard() ? print board info - still in flash
3.	board_init() ? says chipselects should be setup here ? we are running
from RAM now
4.	initr_env() is called here
5.	board_late_init() - 

Nikolay, appears you are correct, initr_env must be called first in order to
use setenv. That?s why setenv didn?t work in board_early_init_f or
checkboard or board_init. 

Fabio, your change worked when I use setenv in misc_init_r and helped me
debug some issues. Thanks guys. 

Is there a doc or a good read that explains which init functions are
necessary for what? Or which ones should be used for ?proper? design? 

I?m sure I?ll be back with more questions real soon. :)




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  reply	other threads:[~2014-11-10 20:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-05 16:36 [U-Boot] porting u-boot, MMU question DaveKucharczyk
2014-11-05 16:58 ` Stefano Babic
2014-11-05 17:16   ` DaveKucharczyk
2014-11-05 21:04     ` Stefano Babic
2014-11-05 21:24       ` Otavio Salvador
2014-11-06 20:03         ` DaveKucharczyk
2014-11-10 15:14           ` [U-Boot] porting u-boot, few final questions DaveKucharczyk
2014-11-10 15:30             ` Fabio Estevam
2014-11-10 15:47               ` Wolfgang Denk
2014-11-10 16:04                 ` Fabio Estevam
2014-11-10 17:54                   ` Nikolay Dimitrov
2014-11-10 20:45                     ` DaveKucharczyk [this message]
2014-11-10 22:21                       ` DaveKucharczyk
2014-11-11 17:39                         ` DaveKucharczyk

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