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authorTim Wawrzynczak <twawrzynczak@chromium.org>2020-06-25 10:01:46 -0600
committerTim Wawrzynczak <twawrzynczak@chromium.org>2020-07-07 17:07:01 +0000
commitc0199919e3621ff280094ee1325763c9e0c37284 (patch)
tree40636073e7425a00e6f8e2152cf461aa7361cee0 /src/soc/intel
parentc85d7c59ace3b3924c3eaec2e03501042d1bf116 (diff)
soc/intel/common: Add a minimal PCI driver for IPU
Add a minimal PCI driver for Intel's IPU, this allows devices to be added underneath it in the devicetree. Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Change-Id: I531b293634a5d40112dc6af7b33fedb5e13f35e5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42812 Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com> Reviewed-by: Christian Walter <christian.walter@9elements.com> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel')
-rw-r--r--src/soc/intel/common/block/ipu/Kconfig4
-rw-r--r--src/soc/intel/common/block/ipu/Makefile.inc1
-rw-r--r--src/soc/intel/common/block/ipu/ipu.c23
3 files changed, 28 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/ipu/Kconfig b/src/soc/intel/common/block/ipu/Kconfig
new file mode 100644
index 0000000000..756616ff85
--- /dev/null
+++ b/src/soc/intel/common/block/ipu/Kconfig
@@ -0,0 +1,4 @@
+config SOC_INTEL_COMMON_BLOCK_IPU
+ bool
+ help
+ Intel Image Processing Unit driver
diff --git a/src/soc/intel/common/block/ipu/Makefile.inc b/src/soc/intel/common/block/ipu/Makefile.inc
new file mode 100644
index 0000000000..ac5bc764a8
--- /dev/null
+++ b/src/soc/intel/common/block/ipu/Makefile.inc
@@ -0,0 +1 @@
+ramstage-$(CONFIG_SOC_INTEL_COMMON_BLOCK_IPU) += ipu.c
diff --git a/src/soc/intel/common/block/ipu/ipu.c b/src/soc/intel/common/block/ipu/ipu.c
new file mode 100644
index 0000000000..f7b01aa067
--- /dev/null
+++ b/src/soc/intel/common/block/ipu/ipu.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+struct device_operations ipu_pci_ops = {
+ .read_resources = pci_bus_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_bus_enable_resources,
+ .scan_bus = scan_generic_bus,
+ .ops_pci = &pci_dev_ops_pci,
+};
+
+static const uint16_t pci_device_ids[] = {
+ PCI_DEVICE_ID_INTEL_TGL_IPU,
+ PCI_DEVICE_ID_INTEL_JSL_IPU,
+};
+
+static const struct pci_driver intel_ipu __pci_driver = {
+ .ops = &ipu_pci_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .devices = pci_device_ids,
+};