From c82aabca0122c5a118f6ab988768bd05eefc3a05 Mon Sep 17 00:00:00 2001 From: Furquan Shaikh Date: Thu, 23 Apr 2020 13:59:00 -0700 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/40675 Tested-by: build bot (Jenkins) Reviewed-by: Raul Rangel --- src/soc/amd/common/block/graphics/Kconfig | 5 +++++ src/soc/amd/common/block/graphics/Makefile.inc | 1 + src/soc/amd/common/block/graphics/graphics.c | 31 ++++++++++++++++++++++++++ 3 files changed, 37 insertions(+) create mode 100644 src/soc/amd/common/block/graphics/Kconfig create mode 100644 src/soc/amd/common/block/graphics/Makefile.inc create mode 100644 src/soc/amd/common/block/graphics/graphics.c (limited to 'src') 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 +#include + +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, +}; -- cgit v1.2.3