Change in coreboot[master]: src/device/Kconfig: introduce the AMD_DGPU_WITHOUT_EEPROM symbols

[Mike Banon (Code Review)]

Mike Banon has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/57319 )

Change subject: src/device/Kconfig: introduce the AMD_DGPU_WITHOUT_EEPROM symbols
......................................................................

src/device/Kconfig: introduce the AMD_DGPU_WITHOUT_EEPROM symbols

Some platforms like Lenovo G505S have the motherboard versions
with the onboard AMD discrete GPU without its own dedicated EEPROM
storage for VGA Option ROM. For such a discrete GPU to be usable
with coreboot, the PCI init of GPUs has to be done differently.

These AMD_DGPU_WITHOUT_EEPROM symbols can help for such cases.

Change-Id: I424f93961c9d4a856dd6f5285417597cb117084d
---
M src/device/Kconfig
1 file changed, 17 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/19/57319/1

diff --git a/src/device/Kconfig b/src/device/Kconfig
index 5ae3466..3df5d79 100644
--- a/src/device/Kconfig
+++ b/src/device/Kconfig
@@ -58,6 +58,23 @@
      Selected by mainboards that implement support for `libgfxinit`.
      Usually this requires a list of ports to be probed for displays.

+config MAINBOARD_HAS_AMD_DGPU_WITHOUT_EEPROM
+	def_bool n
+	help
+	  Selected by mainboards that have the onboard AMD discrete GPU
+	  without its own dedicated EEPROM storage for VGA Option ROM.
+
+config AMD_DGPU_WITHOUT_EEPROM
+	def_bool n
+	prompt "AMD discrete GPU without EEPROM"
+	depends on MAINBOARD_HAS_AMD_DGPU_WITHOUT_EEPROM
+	help
+	  Some platforms like Lenovo G505S have the motherboard versions
+	  with the onboard AMD discrete GPU without its own dedicated EEPROM
+	  storage for VGA Option ROM. For such a discrete GPU to be usable
+	  with coreboot, the PCI initialization has to be done differently.
+	  Enable this option if your motherboard has such a discrete GPU.
+
 choice
    prompt "Graphics initialization"
    default NO_GFX_INIT if VGA_ROM_RUN_DEFAULT && PAYLOAD_SEABIOS