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Re: Toshiba JMR 3927 working setup?

To: linux-mips@linux-mips.org
Subject: Re: Toshiba JMR 3927 working setup?
From: Gregor Waltz <gregor.waltz@raritan.com>
Date: Fri, 04 Jan 2008 17:27:54 -0500
In-reply-to: <20080104192310.GE22809@networkno.de>
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References: <477E6296.7090605@raritan.com> <20080104172136.GD22809@networkno.de> <477E7DAE.2080005@raritan.com> <20080104192310.GE22809@networkno.de>
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Thiemo Seufer wrote:
Hm, your start address is 0x80020000, but the load address of the jmr3927
(in the www.linux-mips.org tree) is 0x80050000. So maybe the address is
wrong, comparing with the old 2.4 kernel should tell.

I compared that against the working 2.4.12 kernel, which does indeed have 80020000 in arch/mips/Makefile. I changed load-$(CONFIG...TX3927) to use 80020000 instead of 80050000, but it still fails the same way. There was also something that I had changed in our 2.4.12 that I had forgotten, but my coworker reminded me that, in jmr3927.h, I changed JMR3927_ROMCE0 from 0x1fc000000 to 0x1f000000 to have the proper address to access some raw memory for internal purposes. I do not recall whether that address is specific to our hardware or a typo, but I do not think that it impacts the normal kernel anyway.

Our 2.4.12 kernel uses -mcpu=r3000 -mips1 to build the kernel. I tried switching the arch to r3000 from r3900 in 2.6.23.9, but that did not help. Perhaps -mips1 or an equivalent could help? I will try on Monday.

I am grasping at straws here.

Thanks to Thiemo and Florian for trying to help.

Have a good weekend.

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