diff options
| author | Kane Chen <kane.chen@intel.corp-partner.google.com> | 2023-07-12 19:11:41 +0800 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-07-18 05:31:42 +0000 |
| commit | 70c6fb42519d27bfce55a6825f52caf29fc58b71 (patch) | |
| tree | 206769035564be7c65087e5dc7068f0dba544049 | |
| parent | fa77ac93c5b63ab56135436cc34d97ab60b57470 (diff) | |
soc/intel/meteorlake: Enable PCIE_CLOCK_CONTROL_THROUGH_P2SB
On Intel Meteor Lake (MTL), PCIe CLK control register is accessed by
P2SB on IOE/SOC die.
So this patch does:
1. Enable PCIE_CLOCK_CONTROL_THROUGH_P2SB
2. Include pcie_clk.asl
3. Set the correct IOE_DIE_CLOCK_START for MTL-U/H.
BUG=b:288976547, b:289461604
TEST=Test on google/screebo and found the pcie clock is on/off properly
and sdcard PCIe port doesn't block S0ix with RTD3 cold enabled.
Change-Id: I6788ae766f36c9a0d4910fda1d6700f20ce73ea8
Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76356
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/soc/intel/meteorlake/Kconfig | 5 | ||||
| -rw-r--r-- | src/soc/intel/meteorlake/acpi/southbridge.asl | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig index 72179f8ca1..c565be8166 100644 --- a/src/soc/intel/meteorlake/Kconfig +++ b/src/soc/intel/meteorlake/Kconfig @@ -63,6 +63,7 @@ config CPU_SPECIFIC_OPTIONS select MP_SERVICES_PPI_V2 select MRC_SETTINGS_PROTECT select PARALLEL_MP_AP_WORK + select PCIE_CLOCK_CONTROL_THROUGH_P2SB select PLATFORM_USES_FSP2_3 select PMC_GLOBAL_RESET_ENABLE_LOCK select SOC_INTEL_COMMON @@ -424,4 +425,8 @@ config PCIE_LTR_MAX_NO_SNOOP_LATENCY help Latency tolerance reporting, max non-snoop latency value defaults to 15.73 ms. +config IOE_DIE_CLOCK_START + int + default 6 if SOC_INTEL_METEORLAKE_U_H + endif diff --git a/src/soc/intel/meteorlake/acpi/southbridge.asl b/src/soc/intel/meteorlake/acpi/southbridge.asl index 0b588f9721..e89b65653a 100644 --- a/src/soc/intel/meteorlake/acpi/southbridge.asl +++ b/src/soc/intel/meteorlake/acpi/southbridge.asl @@ -12,6 +12,9 @@ #include <soc/intel/common/acpi/ioe_pcr.asl> #endif +/* PCIE src clock control */ +#include <soc/intel/common/acpi/pcie_clk.asl> + /* PCH clock */ #include "camera_clock_ctl.asl" |