Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/45695 )
Change subject: mb/purism/librem_skl: Enable and set SATA tuning params ......................................................................
mb/purism/librem_skl: Enable and set SATA tuning params
Some Librems have issues with 6Gbps SATA operation on certain SSDs, setting the Receiver Equalization Boost Magnitude adjustment resolves this.
Test: build/boot Librem 15v3 with Crucial SATA SSD, observe no issues booting, no ATA-related errors in dmesg on PureOS 10 / kernel 5.8.7
Change-Id: I078deeff7fc54694393b5b16c41c5d622b332781 Signed-off-by: Matt DeVillier matt.devillier@puri.sm Reviewed-on: https://review.coreboot.org/c/coreboot/+/45695 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Angel Pons th3fanbus@gmail.com --- M src/mainboard/purism/librem_skl/romstage.c 1 file changed, 6 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Angel Pons: Looks good to me, approved
diff --git a/src/mainboard/purism/librem_skl/romstage.c b/src/mainboard/purism/librem_skl/romstage.c index de493b0..7be8325 100644 --- a/src/mainboard/purism/librem_skl/romstage.c +++ b/src/mainboard/purism/librem_skl/romstage.c @@ -64,4 +64,10 @@ mem_cfg->DqPinsInterleaved = TRUE; mem_cfg->MemorySpdDataLen = blk.len; mem_cfg->MemorySpdPtr00 = (uintptr_t) blk.spd_array[0]; + + /* Enable and set SATA HSIO adjustments for ports 0 and 2 */ + mem_cfg->PchSataHsioRxGen3EqBoostMagEnable[0] = 1; + mem_cfg->PchSataHsioRxGen3EqBoostMagEnable[2] = 1; + mem_cfg->PchSataHsioRxGen3EqBoostMag[0] = 1; + mem_cfg->PchSataHsioRxGen3EqBoostMag[2] = 1; }