From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] ppc405gp cpu problems
Date: Sun, 12 Sep 2004 18:41:10 +0200 [thread overview]
Message-ID: <20040912164115.E8EC6C1430@atlas.denx.de> (raw)
In-Reply-To: Your message of "Sun, 12 Sep 2004 05:09:18 +0300." <008d01c4986d$8293fb90$030aa8c0@t>
In message <008d01c4986d$8293fb90$030aa8c0@t> you wrote:
>
> first problem with bootloader:
...
> Seems everybody else is executing this code without problems
Indeed. Are you sure your CPU can read the flash contents without
problems?
> Another problem is with MMU on linux.
> cpu crashes almost immediately at start.
> when linux atempts to initialize MMU
How do you know? Are you using a JTAG debugger? Which one/ Does it
understand to use virtual addresses, and is it configured correctly
for this?
> What can cause such behavior? Or these cpu have some defect?
I guess you are using an inappropriate and/or misconfigured tool.
Additionally, there might be the typical RAM problems you can read
about in at least 9 out of 10 postings on tis list.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
8 Catfish = 1 Octo-puss
next prev parent reply other threads:[~2004-09-12 16:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-09 15:06 [U-Boot-Users] MPC8540 FEC/TSEC -Issues while enabling both controllers Sudhakar
2004-09-10 1:30 ` [U-Boot-Users] What is the most simple ppc405gp board Tadas
2004-09-10 7:10 ` Wolfgang Denk
2004-09-10 7:41 ` Stefan Roese
2004-09-10 12:36 ` Tadas
2004-09-10 15:34 ` Stefan Roese
2004-09-12 2:09 ` [U-Boot-Users] ppc405gp cpu problems Tadas
2004-09-12 16:41 ` Wolfgang Denk [this message]
2004-09-16 21:13 ` Tadas
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