[U-Boot] [PATCH v2.1 11/13] sunxi: add DRAM support to H6

[Maxime Ripard]

On Mon, Jul 23, 2018 at 06:13:34AM +0800, Icenowy Zheng wrote:
> The Allwinner H6 SoC comes with a set of new DRAM controller+PHY combo.
> Both the controller and the PHY seem to be originate from DesignWare,
> and are similar to the ones in ZynqMP SoCs.
> 
> This commit introduces an initial DRAM driver for H6, which contains
> only LPDDR3 support. The currently known SBCs with H6 all come with
> LPDDR3 memory, including Pine H64 and several Orange Pi's.
> 
> The BSP DRAM initialization code is closed source and violates GPL. Code
> in this commit is written by experimenting, referring the code/document
> of other users of the IPs (mainly the ZynqMP, as it's the only found PHY
> reference) and disassebling the BSP blob.
> 
> Thanks for Jernej Skrabec for review and fix some issues in this driver
> (including the most critical one which made it to work), and rewrite
> some code from register dump!
> 
> Signed-off-by: Icenowy Zheng <icenowy at aosc.io>

Acked-by: Maxime Ripard <maxime.ripard at bootlin.com>

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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