[coreboot-gerrit] Change in libgfxinit[master]: Add flag to allow use of VGACNTRL on GMCH
Arthur Heymans (Code Review)
gerrit at coreboot.org
Wed Mar 28 17:29:48 CEST 2018
Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/25404
Change subject: Add flag to allow use of VGACNTRL on GMCH
......................................................................
Add flag to allow use of VGACNTRL on GMCH
Change-Id: If2f12f14b4f367cdfc8cc2c20402f2350e3bbba8
Signed-off-by: Arthur Heymans <arthur at aheymans.xyz>
---
M common/hw-gfx-gma-config.ads.template
M common/hw-gfx-gma-pipe_setup.adb
M common/hw-gfx-gma-registers.ads
3 files changed, 12 insertions(+), 4 deletions(-)
git pull ssh://review.coreboot.org:29418/libgfxinit refs/changes/04/25404/1
diff --git a/common/hw-gfx-gma-config.ads.template b/common/hw-gfx-gma-config.ads.template
index aa1c3cd..e6326de 100644
--- a/common/hw-gfx-gma-config.ads.template
+++ b/common/hw-gfx-gma-config.ads.template
@@ -56,6 +56,7 @@
Has_DSP_Linoff : constant Boolean := CPU <= Ivybridge;
Has_PF_Pipe_Select : constant Boolean := CPU in Ivybridge .. Haswell;
VGA_Plane_Workaround : constant Boolean := CPU = Ivybridge;
+ Has_GMCH_VGACNTRL : constant Boolean := false;
----- Panel power: -----
Has_PP_Write_Protection : constant Boolean := CPU <= Ivybridge;
diff --git a/common/hw-gfx-gma-pipe_setup.adb b/common/hw-gfx-gma-pipe_setup.adb
index e1ff835..8b02798 100644
--- a/common/hw-gfx-gma-pipe_setup.adb
+++ b/common/hw-gfx-gma-pipe_setup.adb
@@ -89,6 +89,11 @@
PS_CTRL_SCALER_MODE_7X5_EXTENDED : constant := 1 * 2 ** 28;
PS_CTRL_FILTER_SELECT_MEDIUM_2 : constant := 1 * 2 ** 23;
+ VGACNTRL_REG : constant Registers.Registers_Index :=
+ (if Config.Has_GMCH_VGACNTRL then
+ Registers.GMCH_VGACNTRL
+ else Registers.CPU_VGACNTRL);
+
---------------------------------------------------------------------------
function PLANE_WM_LINES (Lines : Natural) return Word32 is
@@ -260,7 +265,7 @@
end if;
Registers.Unset_And_Set_Mask
- (Register => Registers.VGACNTRL,
+ (Register => VGACNTRL_REG,
Mask_Unset => VGA_CONTROL_VGA_DISPLAY_DISABLE or
VGA_CONTROL_BLINK_DUTY_CYCLE_MASK or
VGA_CONTROL_VSYNC_BLINK_RATE_MASK,
@@ -512,7 +517,7 @@
Port_IO.InB (Reg8, VGA_SR_DATA);
Port_IO.OutB (VGA_SR_DATA, Reg8 or VGA_SR01_SCREEN_OFF);
Time.U_Delay (100); -- PRM says 100us, Linux does 300
- Registers.Set_Mask (Registers.VGACNTRL, VGA_CONTROL_VGA_DISPLAY_DISABLE);
+ Registers.Set_Mask (VGACNTRL_REG, VGA_CONTROL_VGA_DISPLAY_DISABLE);
end Legacy_VGA_Off;
procedure All_Off
diff --git a/common/hw-gfx-gma-registers.ads b/common/hw-gfx-gma-registers.ads
index 87c8069..1515fab 100644
--- a/common/hw-gfx-gma-registers.ads
+++ b/common/hw-gfx-gma-registers.ads
@@ -64,7 +64,7 @@
BCS_PP_DCLV_HIGH,
BCS_PP_DCLV_LOW,
GAB_CTL_REG,
- VGACNTRL,
+ CPU_VGACNTRL,
FUSE_STATUS,
ILK_DISPLAY_CHICKEN2,
DSPCLK_GATE_D,
@@ -468,6 +468,7 @@
PLANE_WM_1_B_7,
PLANE_BUF_CFG_1_B,
SPBCNTR,
+ GMCH_VGACNTRL,
PIPE_SCANLINE_C,
PIPECCONF,
PIPECMISC,
@@ -1284,7 +1285,8 @@
PCH_HDMID => 16#0e_1160# / Register_Width,
-- Intel Registers
- VGACNTRL => 16#04_1000# / Register_Width,
+ CPU_VGACNTRL => 16#04_1000# / Register_Width,
+ GMCH_VGACNTRL => 16#07_1400# / Register_Width,
FUSE_STATUS => 16#04_2000# / Register_Width,
FBA_CFB_BASE => 16#04_3200# / Register_Width,
IPS_CTL => 16#04_3408# / Register_Width,
--
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Gerrit-Project: libgfxinit
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: If2f12f14b4f367cdfc8cc2c20402f2350e3bbba8
Gerrit-Change-Number: 25404
Gerrit-PatchSet: 1
Gerrit-Owner: Arthur Heymans <arthur at aheymans.xyz>
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