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authorRonak Kanabar <ronak.kanabar@intel.com>2020-04-02 16:03:41 +0530
committerNico Huber <nico.h@gmx.de>2020-04-06 11:06:53 +0000
commitb6a523927d58c13b7a0bf6c8d20ef29a43e1aa95 (patch)
tree8cdbb813ff1738d61a1d22de58462ebc08488bf1 /src/soc
parente8d483923baed00fbc16de38e6532f4cc27cdc9b (diff)
downloadcoreboot-b6a523927d58c13b7a0bf6c8d20ef29a43e1aa95.tar.xz
soc/intel/jasperlake: Remove DDI A lane programming
For newer Intel graphics (>=11), the DDI port max lanes default to 4. And kernel driver no longer relies on coreboot to provide information via DDI_BUF_CTL_A (for DDI port A) register programming. Hence removing this code. BUG=b:150788968 BRANCH=None TEST=checked jslrvp compilation and boot. Change-Id: I4c171ec6a57d6fc53bee88420bfb3c0fbc5dc057 Signed-off-by: Ronak Kanabar <ronak.kanabar@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40038 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: Aamir Bohra <aamir.bohra@intel.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
-rw-r--r--src/soc/intel/jasperlake/graphics.c19
1 files changed, 0 insertions, 19 deletions
diff --git a/src/soc/intel/jasperlake/graphics.c b/src/soc/intel/jasperlake/graphics.c
index 4f5d573c8b..0ee340ce3b 100644
--- a/src/soc/intel/jasperlake/graphics.c
+++ b/src/soc/intel/jasperlake/graphics.c
@@ -19,7 +19,6 @@
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
-#include <drivers/intel/gma/i915_reg.h>
#include <drivers/intel/gma/opregion.h>
#include <intelblocks/graphics.h>
#include <types.h>
@@ -31,24 +30,6 @@ uintptr_t fsp_soc_get_igd_bar(void)
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
- * if the VBIOS or GOP driver do not execute.
- */
- ddi_buf_ctl = graphics_gtt_read(DDI_BUF_CTL_A);
- if (!acpi_is_wakeup_s3() && !(ddi_buf_ctl & DDI_BUF_CTL_ENABLE)) {
- ddi_buf_ctl |= (DDI_A_4_LANES | DDI_INIT_DISPLAY_DETECTED |
- DDI_BUF_IS_IDLE);
- graphics_gtt_write(DDI_BUF_CTL_A, ddi_buf_ctl);
- }
-
/*
* GFX PEIM module inside FSP binary is taking care of graphics
* initialization based on RUN_FSP_GOP Kconfig