public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Jens Scharsig <js_at_ng@scharsoft.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [ARM] start.s for 920t brocken?
Date: Tue, 14 Dec 2010 20:38:27 +0100	[thread overview]
Message-ID: <4D07C7B3.6090201@scharsoft.de> (raw)

Hello,

is it possible that, start.s for arm920t is broken with relocation?

I try make my board run with relocation and start from NOR Flash.

<snip>
start_code:
	/*
	 * set the cpu to SVC32 mode
	 */
	mrs	r0, cpsr
	bic	r0, r0, #0x1f
	orr	r0, r0, #0xd3
	msr	cpsr, r0

	bl	coloured_LED_init
	bl	red_LED_on

#if	
<snip>

I found out, that the board crashes on calling coloured_LED_init.

So I comment out "bl coloured_LED_init" and "bl red_LED_on" and the board boots.
I think this both calls should be removed at this position or moved to a better place. 
At this early position the C environment and stack are not initialized !?

Can anybody confirm this? Any suggestions or patches?

Thanks

Jens Scharsig 

                 reply	other threads:[~2010-12-14 19:38 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4D07C7B3.6090201@scharsoft.de \
    --to=js_at_ng@scharsoft.de \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox