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author | Crystal Guo <crystal.guo@mediatek.corp-partner.google.com> | 2024-09-20 19:48:11 +0800 |
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committer | Yu-Ping Wu <yupingso@google.com> | 2024-12-02 04:24:55 +0000 |
commit | 8df4eefd441d8167c866ec34bf7e7fba9fb5512e (patch) | |
tree | 7848c2248c900e29eb27d3b446eddc696899c174 /src/superio/ite/it8712f/Kconfig | |
parent | 5c766bc150f7ab6829f968b1ea0ddf7890a3b5f5 (diff) |
soc/mediatek/mt8196: Reserve DRAM buffers for HW TX TRACKING
HW TX tracking works by writing a pattern to the designated DRAM buffer
and then reading it back automatically to calculate the appropriate TX
time delay. To avoid writing the pattern to system-used memory, we need
to permanently reserve last 64KB memory on each rank for the HW TX
tracking feature.
BUG=b:317009620
TEST=Reserve memory ok
Firmware shows the following log with 12GB DDR board:
00000001ffff0000-00000001ffffffff: RESERVED
000000037fff0000-000000037fffffff: RESERVED
Change-Id: I042a74c7fbdc0d3dc19dd6bfd2bf021fe1c2b5fc
Signed-off-by: Crystal Guo <crystal.guo@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85124
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Diffstat (limited to 'src/superio/ite/it8712f/Kconfig')
0 files changed, 0 insertions, 0 deletions