From 51b2fd82d32025a47901c5607afa370376fae8f1 Mon Sep 17 00:00:00 2001 From: Subrata Banik Date: Tue, 4 Jun 2019 12:14:44 +0530 Subject: 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/33189 Reviewed-by: Aamir Bohra Reviewed-by: Wonkyu Kim Reviewed-by: Ronak Kanabar Tested-by: build bot (Jenkins) --- src/soc/intel/common/block/graphics/Kconfig | 8 ++++++++ src/soc/intel/icelake/graphics.c | 4 ++++ 2 files changed, 12 insertions(+) (limited to 'src/soc') 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 -- cgit v1.2.3