diff options
| author | Ronak Kanabar <ronak.kanabar@intel.com> | 2020-02-27 19:40:32 +0530 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-03-25 10:45:08 +0000 |
| commit | ba5062d78b8f3453d918a9096f08bfe393fd5922 (patch) | |
| tree | 52277b7b8f2c1eb0a8ef1fbe8b575276b131a145 /src/mainboard/intel/jasperlake_rvp/board_id.c | |
| parent | 2e4bc06b49b413d7524d748cc1626b1737dfd7d1 (diff) | |
mb/intel/jasperlake_rvp: Add memory config for Jasper Lake RVP
Add memory initialization parameters for Jasper Lake RVP boards
Jasper Lake RVP supports two variants, one with memory LPDDR4
and another with DDR4
Based on board id, mainboard will pass correct memory parameters
to the fsp.
BUG=None
BRANCH=None
TEST=Check compilation for Jasper Lake RVP and check memory training passes.
Change-Id: Idc92363a2148990df16c2068c7986013d015f604
Signed-off-by: Ronak Kanabar <ronak.kanabar@intel.com>
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39195
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/intel/jasperlake_rvp/board_id.c')
| -rw-r--r-- | src/mainboard/intel/jasperlake_rvp/board_id.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mainboard/intel/jasperlake_rvp/board_id.c b/src/mainboard/intel/jasperlake_rvp/board_id.c index 1913d3f0fc..09d73cb9c3 100644 --- a/src/mainboard/intel/jasperlake_rvp/board_id.c +++ b/src/mainboard/intel/jasperlake_rvp/board_id.c @@ -1,6 +1,7 @@ /* * This file is part of the coreboot project. * + * Copyright 2020 The coreboot project Authors * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -29,7 +30,10 @@ static uint32_t get_board_id_via_ext_ec(void) return id; } -/* Get Board ID via EC I/O port write/read */ +/* + * Get Board ID via EC I/O port write/read + * Board id is 5 bit, so mask other bits while returning board id. + */ int get_board_id(void) { MAYBE_STATIC_NONZERO int id = -1; @@ -47,5 +51,6 @@ int get_board_id(void) } } } - return id; + + return (id & 0x1f); } |