diff options
| author | Mario Scheithauer <mario.scheithauer@siemens.com> | 2023-05-10 14:30:29 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-05-24 11:25:50 +0000 |
| commit | 04705bfc26f06881d608bea46b01397018bf904b (patch) | |
| tree | bea7178ed0bc40dd3a24ede70235024462210d7b /src/mainboard/siemens/mc_ehl/variants | |
| parent | f5a48989b4d005158917b9890340f416dad506f1 (diff) | |
mb/siemens/mc_ehl4: Double payload size to 256 bytes for PCIe RP #2, #3
To improve the rate of data transfer for PCIe root port #2 (00:1c.1) and
root port #3 (00:1c.2) set the max payload size to 256 bytes for both
root ports.
Change-Id: I553f6cf090d799fbbaafb925646c6566d6951a86
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75127
Reviewed-by: Jan Samek <jan.samek@siemens.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Diffstat (limited to 'src/mainboard/siemens/mc_ehl/variants')
| -rw-r--r-- | src/mainboard/siemens/mc_ehl/variants/mc_ehl4/devicetree.cb | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_ehl/variants/mc_ehl4/devicetree.cb b/src/mainboard/siemens/mc_ehl/variants/mc_ehl4/devicetree.cb index 56cfc3bc03..e99dd48f06 100644 --- a/src/mainboard/siemens/mc_ehl/variants/mc_ehl4/devicetree.cb +++ b/src/mainboard/siemens/mc_ehl/variants/mc_ehl4/devicetree.cb @@ -78,6 +78,9 @@ chip soc/intel/elkhartlake register "PcieRpPcieSpeed[3]" = "1" register "PcieRpPcieSpeed[4]" = "1" + register "PcieRpMaxPayload[1]" = "RpMaxPayload_256" + register "PcieRpMaxPayload[2]" = "RpMaxPayload_256" + # Storage (SATA/SDCARD/EMMC) related UPDs register "SataSalpSupport" = "0" register "SataPortsEnable[0]" = "1" |