diff options
| author | Subrata Banik <subratabanik@google.com> | 2023-07-12 11:35:01 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2023-07-18 05:30:52 +0000 |
| commit | 649709c6fccedc9909fc21f3813185d3c64b3539 (patch) | |
| tree | 674e2a12e2fecdc300adf263df5ee29fdac829a2 /src/soc/intel | |
| parent | 5557fbe406adfc7c54dd7a599a32dc010945dcac (diff) | |
soc/intel/common/acpi: Add IOE PS2B access APIs
This patch implements APIs to access PCR registers from IOE die.
BUG=b:290856936
TEST=Able to build and boot google/rex.
Change-Id: Ief7a00c4e81048f87ee308e659faeba3fde4c9cd
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76409
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/common/acpi/ioe_pcr.asl | 46 | ||||
| -rw-r--r-- | src/soc/intel/common/acpi/pcrlib.asl | 10 |
2 files changed, 53 insertions, 3 deletions
diff --git a/src/soc/intel/common/acpi/ioe_pcr.asl b/src/soc/intel/common/acpi/ioe_pcr.asl new file mode 100644 index 0000000000..7f532606af --- /dev/null +++ b/src/soc/intel/common/acpi/ioe_pcr.asl @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include "pcrlib.asl" + +/* APIs to access P2SB inside IOE die */ + +/* + * Calculate PCR register base at specified PID + * Arg0 - PCR Port ID + */ +Method (ICRB, 1, NotSerialized) +{ + Return (GPCR(IOE_P2SB, Arg0)) +} + +/* + * Read a PCR register at specified PID and offset + * Arg0 - PCR Port ID + * Arg1 - Register Offset + */ +Method (ICRR, 2, Serialized) +{ + Return (RPCR(IOE_P2SB, Arg0, Arg1)) +} + +/* + * AND a value with PCR register at specified PID and offset + * Arg0 - PCR Port ID + * Arg1 - Register Offset + * Arg2 - Value to AND + */ +Method (ICRA, 3, Serialized) +{ + APCR(IOE_P2SB, Arg0, Arg1, Arg2) +} + +/* + * OR a value with PCR register at specified PID and offset + * Arg0 - PCR Port ID + * Arg1 - Register Offset + * Arg2 - Value to OR + */ +Method (ICRO, 3, Serialized) +{ + OPCR(IOE_P2SB, Arg0, Arg1, Arg2) +} diff --git a/src/soc/intel/common/acpi/pcrlib.asl b/src/soc/intel/common/acpi/pcrlib.asl index 265118573d..dd5fb9f254 100644 --- a/src/soc/intel/common/acpi/pcrlib.asl +++ b/src/soc/intel/common/acpi/pcrlib.asl @@ -8,7 +8,7 @@ /* Die Index */ #define PCH_P2SB 0x00 -/* TODO: Add index for P2SB which belongs to IOE Die" */ +#define IOE_P2SB 0x01 /* * Get PCR register base for specified Die at given PID @@ -20,8 +20,12 @@ Method (GPCR, 2, NotSerialized) if (Arg0 == PCH_P2SB) { Local0 = CONFIG_PCR_BASE_ADDRESS; } else { - Printf ("Invalid Die index (%o)\n", Arg0) - Return (0) + if (Arg0 == IOE_P2SB) { + Local0 = CONFIG_IOE_PCR_BASE_ADDRESS; + } else { + Printf ("Invalid Die index (%o)\n", Arg0) + Return (0) + } } Return (Local0 + (Arg1 << PCR_PORTID_SHIFT)) |