From: Andrew May <acmay@acmay.homeip.net>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] bootm change for standalone images
Date: Mon, 26 Jul 2004 18:21:14 -0700 [thread overview]
Message-ID: <20040727012114.GA22062@acmay.homeip.net> (raw)
I need to boot a HW test program and it expects to be loaded down at address 0x0
with the interrupt vectors laid out. So it is like a stupid homegrown OS.
I came up with this quick fix to check for a load to address 0x0 for a standalone
type, and not re-enable interrupts.
But I am not sure if the check would be universal.
Would it better to add a new type or flag to image header.
It looks like RTEMS is the simplest OS loader and it should work as
is with my image, but it would be nice to have a generic print instead.
-------------- next part --------------
--- u-boot-1.1.1/common/cmd_bootm.c 2004-04-18 14:13:43.000000000 -0700
+++ u-boot-gige2/common/cmd_bootm.c 2004-07-15 19:55:08.000000000 -0700
@@ -363,7 +363,7 @@
switch (hdr->ih_type) {
case IH_TYPE_STANDALONE:
- if (iflag)
+ if ( ntohl(hdr->ih_load) != 0x0 && iflag)
enable_interrupts();
/* load (and uncompress), but don't start if "autostart"
next reply other threads:[~2004-07-27 1:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-27 1:21 Andrew May [this message]
2004-07-27 22:05 ` [U-Boot-Users] bootm change for standalone images Wolfgang Denk
2004-07-27 22:31 ` Andrew May
2004-07-28 8:57 ` Wolfgang Denk
2004-07-28 19:59 ` Andrew May
2004-07-28 21:22 ` Wolfgang Denk
2004-07-29 17:16 ` Andrew May
2004-07-29 17:29 ` Wolfgang Denk
2004-07-29 18:00 ` Andrew May
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