[coreboot-gerrit] Change in ...coreboot[master]: soc/intel/common: Skip SoC GT programming based on CONFIG_SKIP_GRAPHI...

[Subrata Banik (Code Review)]

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33189

Change subject: soc/intel/common: Skip SoC GT programming based on CONFIG_SKIP_GRAPHICS_ENABLING
......................................................................

soc/intel/common: Skip SoC GT programming based on CONFIG_SKIP_GRAPHICS_ENABLING

Skip GT specific programming in coreboot to support early
parts without GT enable.

Change-Id: I231e13367cbfbafbfb0cb4235487dbcbcae76820
Signed-off-by: Subrata Banik 
---
M src/soc/intel/common/block/graphics/Kconfig
M src/soc/intel/icelake/graphics.c
2 files changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/89/33189/1

diff --git a/src/soc/intel/common/block/graphics/Kconfig b/src/soc/intel/common/block/graphics/Kconfig
index 4ab9200..36cac22 100644
--- a/src/soc/intel/common/block/graphics/Kconfig
+++ b/src/soc/intel/common/block/graphics/Kconfig
@@ -2,3 +2,11 @@
    bool
    help
      Intel Processor common Graphics support
+
+config SKIP_GRAPHICS_ENABLING
+	bool
+	depends on SOC_INTEL_COMMON_BLOCK_GRAPHICS
+	default n
+	help
+	  Skip GT specific programming in coreboot to support
+	  early parts without GT enable.
diff --git a/src/soc/intel/icelake/graphics.c b/src/soc/intel/icelake/graphics.c
index 0fbddf0..0709033 100644
--- a/src/soc/intel/icelake/graphics.c
+++ b/src/soc/intel/icelake/graphics.c
@@ -34,6 +34,10 @@
 {
    uint32_t ddi_buf_ctl;

+	/* Skip IGD GT programming */
+	if (CONFIG(SKIP_GRAPHICS_ENABLING))
+		return;
+
    /*
     * Enable DDI-A (eDP) 4-lane operation if the link is not up yet.
     * This will allow the kernel to use 4-lane eDP links properly