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5 commits

Author SHA1 Message Date
Andre Przywara
7656d3982a sunxi: H6: Add DDR3-1333 timings
Add a routine to program the timing parameters for DDR3-1333 DRAM chips
connected to the H6 DRAM controller.

The values were gathered from doing back-calculations from a register
dump, trying to match them up with the official JEDEC DDDR3 spec.
If in doubt, the register dump values were taken for now, but the JEDEC
recommendation were added as a comment.

Many thanks to Jernej for contributing fixes!

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-07-16 17:13:04 +05:30
Andre Przywara
770b85a418 sunxi: H6: move LPDDR3 timing definition into separate file
Currently the H6 DRAM driver only supports one kind of LPDDR3 DRAM.
Split the timing parameters for this LPDDR3 configuration  into a
separate file, to allow selecting an alternative later at compile time
(as the sunxi-dw driver does).

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-07-16 17:09:31 +05:30
Icenowy Zheng
ec4670a137 sunxi: add LPDDR3 timing from stock boot0
As we added LPDDR3 support in the former patch, we need a set of timing
info to really enable it.

Add the timing info used by stock boot0.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
67337e68a5 sunxi: add support for the DDR2 in V3s SoC
Allwinner V3s SoC features a co-packaged DDR2 DRAM chip, which needs its
timing param.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30
Icenowy Zheng
f6457ce578 sunxi: Add selective DRAM type and timing
DRAM chip varies, and one code cannot satisfy all DRAMs.

Add options to select a timing set.

Currently only DDR3-1333 (the original set) is added into it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>
2017-06-08 22:37:55 +05:30