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| author | Wim Vervoorn <wvervoorn@eltan.com> | 2020-05-07 13:16:32 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-05-12 20:10:52 +0000 |
| commit | 5819eab5a660f915e0d18dd7d948d2af2a231aa0 (patch) | |
| tree | a73ed69b2ab8334b8b8394093297bf72fa22a7ee /src/soc | |
| parent | 79412ed3649ab423fb2eee73f971a928108fd041 (diff) | |
| download | coreboot-5819eab5a660f915e0d18dd7d948d2af2a231aa0.tar.xz | |
soc/intel/skylake: Add ability to set root port ASPM
The default setting of the root port ASPM configuration can be
overridden from the device tree by using a non zero value.
BUG=N/A
TEST=tested on facebook monolith
Change-Id: I85c545d5eacb10f43b94228f1caf1163028645e0
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41171
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/skylake/chip.c | 5 | ||||
| -rw-r--r-- | src/soc/intel/skylake/chip.h | 10 |
2 files changed, 14 insertions, 1 deletions
diff --git a/src/soc/intel/skylake/chip.c b/src/soc/intel/skylake/chip.c index 4ad691cb2e..ce566cf7b5 100644 --- a/src/soc/intel/skylake/chip.c +++ b/src/soc/intel/skylake/chip.c @@ -182,8 +182,11 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) sizeof(params->PcieRpLtrEnable)); memcpy(params->PcieRpHotPlug, config->PcieRpHotPlug, sizeof(params->PcieRpHotPlug)); - for (i = 0; i < CONFIG_MAX_ROOT_PORTS; i++) + for (i = 0; i < CONFIG_MAX_ROOT_PORTS; i++) { params->PcieRpMaxPayload[i] = config->PcieRpMaxPayload[i]; + if (config->PcieRpAspm[i]) + params->PcieRpAspm[i] = config->PcieRpAspm[i] - 1; + } /* * PcieRpClkSrcNumber UPD is set to clock source number(0-6) for diff --git a/src/soc/intel/skylake/chip.h b/src/soc/intel/skylake/chip.h index e279d335bd..eb6cf9d7bc 100644 --- a/src/soc/intel/skylake/chip.h +++ b/src/soc/intel/skylake/chip.h @@ -289,6 +289,16 @@ struct soc_intel_skylake_config { RpMaxPayload_256, } PcieRpMaxPayload[CONFIG_MAX_ROOT_PORTS]; + /* PCIE RP ASPM, ASPM support for the root port */ + enum { + AspmDefault, + AspmDisabled, + AspmL0s, + AspmL1, + AspmL0sL1, + AspmAutoConfig, + } PcieRpAspm[CONFIG_MAX_ROOT_PORTS]; + /* USB related */ struct usb2_port_config usb2_ports[16]; struct usb3_port_config usb3_ports[10]; |