[U-Boot] [U-Boot, fix, for, v2014.10] sunxi: Fix gmac not working reliable on the Bananapi

[Tom Rini]

On Tue, Sep 30, 2014 at 06:45:32PM +0200, Hans de Goede wrote:

> In order for the gmac nic to work reliable on the Bananapi, we need to set
> bits 10-12 GTXDC "GMAC Transmit Clock Delay Chain" of the GMAC clk register
> (0x01c20164) to 3.
> 
> Without this about 9 out of 10 ethernet packets get lost, with this setting
> there is no packet loss.
> 
> So far setting these bits is only necessary on the Bananapi, so this commit
> solves this with a bit of #ifdef CONFIG_BANANAPI code. If in the future we
> need to do something similar for other boards, we can create a specific
> CONFIG_FOO option for this then.
> 
> Reported-by: Karsten Merker <merker at debian.org>
> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
> Tested-by: Karsten Merker <merker at debian.org>
> Tested-by: Zoltan HERPAI <wigyori at openwrt.org>
> Tested-by: Tony Zhang <tony.zhang at lemaker.org>
> Acked-by: Ian Campbell <ijc at hellion.org.uk>

Applied to u-boot/master, thanks!

-- 
Tom
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