linux-kernel - Re: [J-core] [PATCH v5 00/22] sh: LANDISK and R2Dplus convert to device tree

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Date:   Thu, 3 May 2018 11:41:34 -0400
From:   Rich Felker <dalias@...c.org>
To:     John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
Cc:     Rob Landley <rob@...dley.net>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [J-core] [PATCH v5 00/22] sh: LANDISK and R2Dplus convert to
 device tree

On Thu, May 03, 2018 at 12:07:38PM +0200, John Paul Adrian Glaubitz wrote:
> Hi Rich!
> 
> On 05/03/2018 04:33 AM, Rich Felker wrote:
> >I found the U-Boot stuff here:
> >
> >https://ja.osdn.net/users/ysato/pf/uboot/wiki/FrontPage
> >
> >but I'm not sure how to install it yet. Will try to figure it out.
> 
> Interesting. It seems the HDL-160U uses u-boot instead of lilo which
> is used on my USL-5P. Both are based on the LANDISK platform though.
> I wonder whether it is possible to convert the USL-5P to use u-boot
> instead of the very limited lilo.
> 
> As for the kernel configuration, for USL-5P, I had to use the kernel
> configuration attached to this mail. One important configuration setting
> is CONFIG_SH_PCLK_FREQ which has to be set to "33250000" otherwise
> the kernel won't boot properly.
> 
> I still have my USL-5P ready to be set up for testing a new kernel
> image with the device tree patches merged. Although I still don't
> know how to enable the internal (pseudo) IDE controller.
> 
> @Yoshinori:
> 
> Did the HDL-160U LANDISK device you have use u-boot by default or
> did you convert it from lilo?

The above U-Boot seems to be a version that's installed in the MBR and
then loads a second-stage program (from where, though?). It's not a
flash rom replacement as far as I can tell -- at least I never did
anything with the flash, and I think before I loaded this disk image,
it was using lilo. I probably still have the original drive that was
in it, with whatever that was booting from.

Rich