Duncan Laurie submitted this change.
soc/intel/common/block: Add new block DTT
Intel Dynamic Tuning Technology is the name of a PCI device on some
Intel SoCs. This minimal PCI driver is only used now for SSDT generation
on TGL devices.
Change-Id: Ib52f35e4e020ca3e6ab8b32cc3bf7df36041926e
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41893
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
M src/include/device/pci_ids.h
A src/soc/intel/common/block/dtt/Kconfig
A src/soc/intel/common/block/dtt/Makefile.inc
A src/soc/intel/common/block/dtt/dtt.c
M src/soc/intel/tigerlake/Kconfig
5 files changed, 35 insertions(+), 0 deletions(-)
diff --git a/src/include/device/pci_ids.h b/src/include/device/pci_ids.h
index ed0629a..8d16361 100644
--- a/src/include/device/pci_ids.h
+++ b/src/include/device/pci_ids.h
@@ -3717,6 +3717,9 @@
#define PCI_DEVICE_ID_INTEL_TGL_IPU 0x9a19
#define PCI_DEVICE_ID_INTEL_JSL_IPU 0x4e19
+/* Intel Dynamic Tuning Technology Device */
+#define PCI_DEVICE_ID_INTEL_TGL_DTT 0x9A03
+
#define PCI_VENDOR_ID_COMPUTONE 0x8e0e
#define PCI_DEVICE_ID_COMPUTONE_IP2EX 0x0291
#define PCI_DEVICE_ID_COMPUTONE_PG 0x0302
diff --git a/src/soc/intel/common/block/dtt/Kconfig b/src/soc/intel/common/block/dtt/Kconfig
new file mode 100644
index 0000000..063c475
--- /dev/null
+++ b/src/soc/intel/common/block/dtt/Kconfig
@@ -0,0 +1,7 @@
+config SOC_INTEL_COMMON_BLOCK_DTT
+ bool
+ default n
+ help
+ Minimal PCI Driver for enabling SSDT generation of Intel
+ Dynamic Tuning Technology (DTT) policies and controls, also
+ known as Intel DPTF (Dynamic Platform and Thermal Framework)
diff --git a/src/soc/intel/common/block/dtt/Makefile.inc b/src/soc/intel/common/block/dtt/Makefile.inc
new file mode 100644
index 0000000..08f48c9
--- /dev/null
+++ b/src/soc/intel/common/block/dtt/Makefile.inc
@@ -0,0 +1 @@
+ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_DTT) += dtt.c
diff --git a/src/soc/intel/common/block/dtt/dtt.c b/src/soc/intel/common/block/dtt/dtt.c
new file mode 100644
index 0000000..14987ea
--- /dev/null
+++ b/src/soc/intel/common/block/dtt/dtt.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+static const unsigned short pci_device_ids[] = {
+ PCI_DEVICE_ID_INTEL_TGL_DTT,
+};
+
+static struct device_operations dptf_dev_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .scan_bus = scan_generic_bus,
+ .ops_pci = &pci_dev_ops_pci,
+};
+
+static const struct pci_driver pch_dptf __pci_driver = {
+ .ops = &dptf_dev_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .devices = pci_device_ids,
+};
diff --git a/src/soc/intel/tigerlake/Kconfig b/src/soc/intel/tigerlake/Kconfig
index c30519c..091abb9 100644
--- a/src/soc/intel/tigerlake/Kconfig
+++ b/src/soc/intel/tigerlake/Kconfig
@@ -45,6 +45,7 @@
select SOC_INTEL_COMMON_BLOCK_CHIP_CONFIG
select SOC_INTEL_COMMON_BLOCK_CPU
select SOC_INTEL_COMMON_BLOCK_CPU_MPINIT
+ select SOC_INTEL_COMMON_BLOCK_DTT
select SOC_INTEL_COMMON_BLOCK_GPIO_DUAL_ROUTE_SUPPORT
select SOC_INTEL_COMMON_BLOCK_GSPI_VERSION_2
select SOC_INTEL_COMMON_BLOCK_HDA
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