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Re: [patch] VR4181A and SMVR4181A

To: Julian Scheel <>
Subject: Re: [patch] VR4181A and SMVR4181A
From: Yoichi Yuasa <>
Date: Mon, 17 Feb 2003 23:33:03 +0900
In-reply-to: <>
Organization: MontaVista Software Japan, Inc.
Original-recipient: rfc822;
References: <> <> <> <>
Hi Julian,

On Mon, 17 Feb 2003 15:10:00 +0100
Julian Scheel <> wrote:

> Hi Yoichi,
> Am Montag, 17. Februar 2003 09:34 schrieb Yoichi Yuasa:
> > I am using binutils-2.12.1 .
> >
> > I also try binutils- .
> > The binutils option was changed, it was able to compile as the following
> > options.
> >
> > GCCFLAGS        += -march=vr4100 -Wa,--trap
> >
> > I don't know yet about the details of new options.
> > We need to investigate about the details of options.
> This seems to work!
> > You have to add -msoft-float, if you don't use FPU Emulator.
> > FPU Emulator is used by the default.
> Ok.
> I have some more problems with the chip at present. I managed to build a 
> kernel, but booting won't work.
> I use the NEC Bootloader, and load the Image over a serial-connection to the 
> Ram (address 0x8010000). The bootloader set the INTERNAL_REGISTERS_BASE to 
> 0xab000000. If I understand the starting-process, the kernel normally 
> searches it at 0xbfa00000 which is the address, before the Bootloader changes 
> it. This is set in include/asm-mips/nile4.h . It gets changed to 0x0a000000 
> (set it smvr4181a.h).
> Now I change the address in nile4.h to 0xab000000, so that the kernel should 
> use the correct address and then changes it to his 0x0a000000.

Which bootloader are you using?
I use PMON (provided from NEC).

PMON load from serial or ethernet to 0x80100000.
This is specified by arch/mips/Makefile.

When you type "g", PMON is jumped to kernel_entry.
When PMON does not recognize kernel_entry,
you can investigate and can specify an address.


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