| commit | 43a3aa0cf4ef427de6b2e445598c4aa300718bb1 | |
| author | Ryan Chuang <ryan.chuang@mediatek.corp-partner.google.com> | |
| Fri, 6 Aug 2021 03:04:23 +0000 (6 11:04 +0800) | ||
| committer | Hung-Te Lin <hungte@chromium.org> | |
| Mon, 9 Aug 2021 01:53:56 +0000 (9 01:53 +0000) | ||
| tree | 6c57d0e76db8fcb00bb0e0dbd4dfa17d6701dbbd | treesnapshot (tar.gz zip) |
| parent | eb94a4a6de5d4de483c99cbaead364fdde73e2d1 | commitdiff |
vc/mediatek/mt8195: Optimize DRAM init time by reducing I2C I/O
Disable reading of vdram/vddq/vmddr to reduce access of I2C
to reduce DRAM init time by about 30ms.
The values were only needed by HQA report and not needed on
production units.
BUG=b:195274787
Signed-off-by: Ryan Chuang <ryan.chuang@mediatek.corp-partner.google.com>
Change-Id: I32cd68fb8b52cec6e145d6772475fde0130ca6ac
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56850
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Disable reading of vdram/vddq/vmddr to reduce access of I2C
to reduce DRAM init time by about 30ms.
The values were only needed by HQA report and not needed on
production units.
BUG=b:195274787
Signed-off-by: Ryan Chuang <ryan.chuang@mediatek.corp-partner.google.com>
Change-Id: I32cd68fb8b52cec6e145d6772475fde0130ca6ac
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56850
Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| src/vendorcode/mediatek/mt8195/dramc/dramc_pi_main.c | diffblobblamehistory |