For DDR4, FSP expects channel 0 to set SPD for index 0 and channel 1
to set SPD for index 4. This change adds a helper macro to translate
DDR4 channel # to the index # that the FSP expects.
BUG=b:154445630
TEST=Verified that memory initialization for DDR4 is successful.
Change-Id: I2b6ea2433453a574970c1c33ff629fd54ff5d508
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40588
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kane Chen <kane.chen@intel.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
This change disables MrcSafeConfig option during MRC training.
MrcSafeConfig was enabled as part of the early testing.
Now with FSP 2527, there is no need to set this config anymore.
BUG=b:150357377
BRANCH=master
TEST=build and boot ripto/volteer
Signed-off-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Change-Id: I4e4069d83754aaf1e4885d6912ab2a6d506c5269
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40106
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Support to configure DDR4 memory variant.
-Add support to read SPD data based on different memory topology.
-Initialize FSP UPD's for DQ and DQS mapping.
BUG=b:151702387
Signed-off-by: Varun Joshi <varun.joshi@intel.corp-partner.google.com>
Change-Id: I47a5dcad3ee316871a6103b9d53ef7f6fc88d7d8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39847
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change updates memory configuration on Tiger Lake Platform to
replace "Reserved9" with "DisableDimmCh#" UPD in init_spd_upds().
For reference https://review.coreboot.org/c/coreboot/+/39797 added
"DisableDimmCh#" UPD.
BUG=b:152000235
BRANCH=none
TEST= build volteer and boot to kernel
Signed-off-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Change-Id: Ie0b5783a8bef02ec8c265fa5b47ce532a77b9675
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40061
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change reorganizes memory initialization code for LPDDR4x on
TGL to allow sharing of code when adding support for other memory
types. In follow-up changes, support for DDR4 will be added.
1. It adds configuration for memory topology which is currently only
MEMORY_DOWN, however DDR4 requires more topologies to be
supported.
2. spd_info structure is organized to allow mixed topologies as well.
3. DQ/DQS maps are organized to reflect hardware configuration.
TEST=Verified that volteer still boots and memory initialization is
successful.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ib625f2ab30a6e1362a310d9abb3f2051f85c3013
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39865
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
