From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Chou <thomas@wytron.com.tw>
Date: Sun, 6 Sep 2015 21:49:20 +0800
Subject: [U-Boot] [PATCH v2 4/8] nios2: enlarge the code relocation range
In-Reply-To: <201509061518.30258.marex@denx.de>
References: <1441336526-23505-1-git-send-email-thomas@wytron.com.tw>
 <201509061429.51987.marex@denx.de> <55EC3BCC.2080900@wytron.com.tw>
 <201509061518.30258.marex@denx.de>
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To: u-boot@lists.denx.de

Hi Marek,

On 09/06/2015 09:18 PM, Marek Vasut wrote:
> Why so? The EPCS is memory mapped and U-Boot starts from it, right ? So
> U-Boot can relocate itself to the end of DRAM , right ?

No. EPCS contains a default boot copier which I said earlier.

Please take a look at this,

https://www.altera.com/support/support-resources/design-examples/intellectual-property/embedded/nios-ii/exm-alt-boot-methods.html

Though the default EPCS boot copier works, it is not easy to update 
u-boot(-dtb).bin image with u-boot sf command. So I used a modified 
version, which copies the u-boot image from a fixed location on EPCS/sf 
to the end of DRAM.

Best regards,
Thomas Chou