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authorFurquan Shaikh <furquan@google.com>2020-04-23 13:59:00 -0700
committerFurquan Shaikh <furquan@google.com>2020-04-28 19:12:16 +0000
commitc82aabca0122c5a118f6ab988768bd05eefc3a05 (patch)
tree94887d6977df58cc71f9530c6d1a886a51b45a02 /src/soc/amd
parenta1cd7eb93ed2b2f9a2351399a2036f84d9dfb9ff (diff)
downloadcoreboot-c82aabca0122c5a118f6ab988768bd05eefc3a05.tar.xz
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>
Diffstat (limited to 'src/soc/amd')
-rw-r--r--src/soc/amd/common/block/graphics/Kconfig5
-rw-r--r--src/soc/amd/common/block/graphics/Makefile.inc1
-rw-r--r--src/soc/amd/common/block/graphics/graphics.c31
3 files changed, 37 insertions, 0 deletions
diff --git a/src/soc/amd/common/block/graphics/Kconfig b/src/soc/amd/common/block/graphics/Kconfig
new file mode 100644
index 0000000000..8aa2a20a3c
--- /dev/null
+++ b/src/soc/amd/common/block/graphics/Kconfig
@@ -0,0 +1,5 @@
+config SOC_AMD_COMMON_BLOCK_GRAPHICS
+ bool
+ default n
+ help
+ Select this option to use AMD common graphics driver support.
diff --git a/src/soc/amd/common/block/graphics/Makefile.inc b/src/soc/amd/common/block/graphics/Makefile.inc
new file mode 100644
index 0000000000..3f21aafe7d
--- /dev/null
+++ b/src/soc/amd/common/block/graphics/Makefile.inc
@@ -0,0 +1 @@
+ramstage-$(CONFIG_SOC_AMD_COMMON_BLOCK_GRAPHICS) += graphics.c
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 0000000000..6d40f7c757
--- /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,
+};