From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Mon, 7 Sep 2015 02:53:31 +0200
Subject: [U-Boot] [PATCH v2 4/8] nios2: enlarge the code relocation range
In-Reply-To: <55ECD8DC.9090305@wytron.com.tw>
References: <1441336526-23505-1-git-send-email-thomas@wytron.com.tw>
 <201509061723.52036.marex@denx.de> <55ECD8DC.9090305@wytron.com.tw>
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On Monday, September 07, 2015 at 02:22:52 AM, Thomas Chou wrote:
> Hi Marek,

Hi!

> On 09/06/2015 11:23 PM, Marek Vasut wrote:
> > Uh oh, is this copying something the U-Boot SPL cannot do for us ?
> 
> Though U-Boot SPL can do, it will need 64KB onchip memory. While the
> EPCS controller needs only 512B onchip memory. So we didn't ever
> consider SPL for nios2.

Where did that 64KB figure come from ? :O

I assume the simple loader is just a copy loop, huh ? And you synthesise
a small RAM or ROM into the FPGA and point NIOS to boot from that, right?
What about U-Boot TPL, can that cook the loader ? (yes, I'd like to be as
independent of the external code as possible).

Best regards,
Marek Vasut