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authorSubrata Banik <subrata.banik@intel.com>2019-06-04 12:14:44 +0530
committerSubrata Banik <subrata.banik@intel.com>2019-06-09 02:46:37 +0000
commit51b2fd82d32025a47901c5607afa370376fae8f1 (patch)
tree601ffb91262dc74e272e88252a4e97307537c10f /src
parent94cdec686e41fa2d632241c011cef87093cd4c17 (diff)
downloadcoreboot-51b2fd82d32025a47901c5607afa370376fae8f1.tar.xz
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 <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/33189 Reviewed-by: Aamir Bohra <aamir.bohra@intel.com> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/common/block/graphics/Kconfig8
-rw-r--r--src/soc/intel/icelake/graphics.c4
2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/graphics/Kconfig b/src/soc/intel/common/block/graphics/Kconfig
index 4ab92001c3..36cac22ec9 100644
--- a/src/soc/intel/common/block/graphics/Kconfig
+++ b/src/soc/intel/common/block/graphics/Kconfig
@@ -2,3 +2,11 @@ config SOC_INTEL_COMMON_BLOCK_GRAPHICS
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 0fbddf06e9..07090331cb 100644
--- a/src/soc/intel/icelake/graphics.c
+++ b/src/soc/intel/icelake/graphics.c
@@ -34,6 +34,10 @@ void graphics_soc_init(struct device *dev)
{
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