soc/amd/common: Add a common graphics block device driver for AMD SoCs
This change adds a common graphics block device driver for AMD
SoCs. In follow-up CLs, this driver will be utilized for Picasso.
This driver is added to enable ACPI name and SSDT generation for
graphics controller.
BUG=b:153858769
Change-Id: I45e2b98fede41e49158d9ff9f93785a34c392c22
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40675
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/src/soc/amd/common/block/graphics/graphics.c b/src/soc/amd/common/block/graphics/graphics.c
new file mode 100644
index 0000000..6d40f7c
--- /dev/null
+++ b/src/soc/amd/common/block/graphics/graphics.c
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
+
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+static const char *graphics_acpi_name(const struct device *dev)
+{
+ return "IGFX";
+}
+
+static const struct device_operations graphics_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = pci_dev_init,
+ .ops_pci = &pci_dev_ops_pci,
+ .write_acpi_tables = pci_rom_write_acpi_tables,
+ .acpi_fill_ssdt = pci_rom_ssdt,
+ .acpi_name = graphics_acpi_name,
+};
+
+static const unsigned short pci_device_ids[] = {
+ 0,
+};
+
+static const struct pci_driver graphics_driver __pci_driver = {
+ .ops = &graphics_ops,
+ .vendor = PCI_VENDOR_ID_ATI,
+ .devices = pci_device_ids,
+};