It turns out that some H616 and related SoCs (like H313) need TPR2
parameter for proper working. Add it.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Currently twr2rd, trd2wr and twtp are constants, but according to
vendor driver they are calculated from other values. Do that here too,
in preparation for later introduction of new parameter.
While at it, introduce constant for t_wr_lat, which was incorrectly
calculated from tcl before.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Allwinner H616 supports many types of DRAM. Most notably it supports
LPDDR4. However, all commercially available boards at this time use
only DDR3, so this commit adds only DDR3 support.
Controller and MBUS are very similar to H6 but PHY is completely
unknown.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
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>
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>
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>
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>
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>
