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Read FSP produced memory HOB and use it to populate DIMM info.
DIMM 'part_num' info is stored statically based on memory/SKU id.
BUG=chrome-os-partner:55505
TEST='dmidecode -t 17' and 'mosys -k memory spd print all'
Change-Id: Ifcbb3329fd4414bba90eb584e065b1cb7f120e73
Signed-off-by: Ravi Sarawadi <ravishankar.sarawadi@intel.com>
Reviewed-on: https://review.coreboot.org/16246
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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The 'dram density' is a misnomer because the memory initialization
code treats that input parameter as a per rank density. Therefore,
update the variables to further clarify how it's actually being
used.
BUG=chrome-os-partner:55446
Change-Id: Ie4c944f35b531812205ac0bb1c70f39ac401495e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15773
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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Despite the UPD comments the Chx_RankEnable fields are a bit
mask which indicates which ranks are enabled for physical
channel. Add the ability to set the rank mask correctly for
dual rank LPDDR4 modules.
BUG=chrome-os-partner:55446
Change-Id: I9dbed7bb6a4b512e57f6b4481180932a7cce91ff
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/15771
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
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Instead of having all the mainboards put similar logic
into their own code provide common mechanism for memory
SKU selection. A function, meminit_lpddr4_by_sku(), is
added that selects the proper configuration based on the
SKU id and configuration passed in. LPDDR4 speed as well
as DRAM device density configuration is associated for
each logical channel per SKU id.
BUG=chrome-os-partner:54949
BRANCH=None
TEST=Built and used on reef for memory config.
Change-Id: Ifc6a734040bb61a58bc3d4c128a6420a71245c6c
Signed-off-by: Aaron Durbin <adurbin@chromuim.org>
Reviewed-on: https://review.coreboot.org/15559
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Instead of having the mainboards duplicate logic surrounding
LPDDR4 initialization provide helpers to do the heavy lifting.
It also handles the quirks of the FSP configuration which allows
the mainboard porting to focus on the schematic/design.
Change-Id: I686eb3097c33399a3b94af89237f7fe1b2d34c2f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14790
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
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