soc/intel/common/block: Add Intel VGA early graphics support
commit47f154c8e593be37ee298e976a37012f44c2a247
authorJeremy Compostella <jeremy.compostella@intel.com>
Thu, 1 Dec 2022 22:55:06 +0000 (1 15:55 -0700)
committerSubrata Banik <subratabanik@google.com>
Thu, 12 Jan 2023 02:54:09 +0000 (12 02:54 +0000)
tree46831caa6f1ea5920d63d003ff7ca889a7b02d0a
parentca025203a84f11f365792919e320e1f57c0a5c50
soc/intel/common/block: Add Intel VGA early graphics support

This patch introduces an early graphics driver which can be used in
romstage in cache-as-ram mode. The implementation relies on
`libgfxinit' and provide VGA text mode support.

SoCs wanting to take advantage of this driver must implement the
`early_graphics_soc_panel_init' function to set the panel power
sequence timing parameters.

BUG=b:252792591
BRANCH=firmware-brya-14505.B
TEST=Graphics bring up observed on skolas with extra patches

Change-Id: Ie4ad1215e5fadd0adc1271b6bd6ddb0ea258cb5b
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/70299
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Maulik Vaghela <maulikvaghela@google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
src/drivers/intel/gma/gma-gfx_init.ads
src/drivers/intel/gma/hires_fb/gma-gfx_init.adb
src/drivers/intel/gma/libgfxinit.h
src/drivers/intel/gma/text_fb/gma-gfx_init.adb
src/soc/intel/common/block/graphics/Kconfig
src/soc/intel/common/block/graphics/Makefile.inc
src/soc/intel/common/block/graphics/early_graphics.c [new file with mode: 0644]
src/soc/intel/common/block/include/intelblocks/early_graphics.h [new file with mode: 0644]