gma: Add flag to use GMCH PP registers
Change-Id: Ia94af6340bdf329328f265fb9424224c1ab5f45f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/25408
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/common/hw-gfx-gma-config.ads.template b/common/hw-gfx-gma-config.ads.template
index a0f3eed..049f473 100644
--- a/common/hw-gfx-gma-config.ads.template
+++ b/common/hw-gfx-gma-config.ads.template
@@ -63,6 +63,7 @@
Has_PP_Write_Protection : constant Boolean := CPU <= Ivybridge;
Has_PP_Port_Select : constant Boolean := CPU <= Ivybridge;
Use_PP_VDD_Override : constant Boolean := CPU <= Ivybridge;
+ Has_PCH_Panel_Power : constant Boolean := CPU >= Ironlake;
----- PCH/FDI: ---------
Has_PCH : constant Boolean := CPU /= Broxton;
diff --git a/common/hw-gfx-gma-panel.adb b/common/hw-gfx-gma-panel.adb
index 1b6a31d..ef18158 100644
--- a/common/hw-gfx-gma-panel.adb
+++ b/common/hw-gfx-gma-panel.adb
@@ -86,6 +86,28 @@
PCH_PP_ON_DELAYS_PORT_SELECT_DP_D : constant := 16#00_0003# * 2 ** 30;
PCH_PP_ON_DELAYS_PWR_UP_MASK : constant := 16#00_1fff# * 2 ** 16;
PCH_PP_ON_DELAYS_PWR_UP_BL_ON_MASK : constant := 16#00_1fff# * 2 ** 0;
+
+ type PP_Regs is record
+ STATUS : Registers.Registers_Index;
+ CONTROL : Registers.Registers_Index;
+ ON_DELAYS : Registers.Registers_Index;
+ OFF_DELAYS : Registers.Registers_Index;
+ DIVISOR : Registers.Registers_Index;
+ end record;
+
+ Panel_PP_Regs : constant PP_Regs := (if Config.Has_PCH_Panel_Power then
+ (STATUS => Registers.PCH_PP_STATUS,
+ CONTROL => Registers.PCH_PP_CONTROL,
+ ON_DELAYS => Registers.PCH_PP_ON_DELAYS,
+ OFF_DELAYS => Registers.PCH_PP_OFF_DELAYS,
+ DIVISOR => Registers.PCH_PP_DIVISOR)
+ else
+ (STATUS => Registers.GMCH_PP_STATUS,
+ CONTROL => Registers.GMCH_PP_CONTROL,
+ ON_DELAYS => Registers.GMCH_PP_ON_DELAYS,
+ OFF_DELAYS => Registers.GMCH_PP_OFF_DELAYS,
+ DIVISOR => Registers.GMCH_PP_DIVISOR));
+
function PCH_PP_ON_DELAYS_PWR_UP (US : Natural) return Word32 is
begin
return Shift_Left (Div_Round_Up32 (US, 100), 16);
@@ -175,19 +197,19 @@
if Default_Delays then
Override_Delays := True;
else
- Registers.Read (Registers.PCH_PP_ON_DELAYS, Power_Delay);
+ Registers.Read (Panel_PP_Regs.ON_DELAYS, Power_Delay);
Delays_US (Power_Up_Delay) := 100 * Natural
(Shift_Right (Power_Delay and PCH_PP_ON_DELAYS_PWR_UP_MASK, 16));
Delays_US (Power_Up_To_BL_On) := 100 * Natural
(Power_Delay and PCH_PP_ON_DELAYS_PWR_UP_BL_ON_MASK);
- Registers.Read (Registers.PCH_PP_OFF_DELAYS, Power_Delay);
+ Registers.Read (Panel_PP_Regs.OFF_DELAYS, Power_Delay);
Delays_US (Power_Down_Delay) := 100 * Natural
(Shift_Right (Power_Delay and PCH_PP_OFF_DELAYS_PWR_DOWN_MASK, 16));
Delays_US (BL_Off_To_Power_Down) := 100 * Natural
(Power_Delay and PCH_PP_OFF_DELAYS_BL_OFF_PWR_DOWN_MASK);
- Registers.Read (Registers.PCH_PP_DIVISOR, Power_Delay);
+ Registers.Read (Panel_PP_Regs.DIVISOR, Power_Delay);
if (Power_Delay and PCH_PP_DIVISOR_PWR_CYC_DELAY_MASK) > 1 then
Delays_US (Power_Cycle_Delay) := 100_000 * (Natural
(Power_Delay and PCH_PP_DIVISOR_PWR_CYC_DELAY_MASK) - 1);
@@ -209,7 +231,7 @@
-- Force power-up to backlight-on delay to 100us as recommended by PRM.
Registers.Unset_And_Set_Mask
- (Register => Registers.PCH_PP_ON_DELAYS,
+ (Register => Panel_PP_Regs.ON_DELAYS,
Mask_Unset => PCH_PP_ON_DELAYS_PORT_SELECT_MASK or
PCH_PP_ON_DELAYS_PWR_UP_MASK or
PCH_PP_ON_DELAYS_PWR_UP_BL_ON_MASK,
@@ -218,7 +240,7 @@
or PCH_PP_ON_DELAYS_PWR_UP_BL_ON (100));
Registers.Unset_And_Set_Mask
- (Register => Registers.PCH_PP_OFF_DELAYS,
+ (Register => Panel_PP_Regs.OFF_DELAYS,
Mask_Unset => PCH_PP_OFF_DELAYS_PWR_DOWN_MASK or
PCH_PP_OFF_DELAYS_BL_OFF_PWR_DOWN_MASK,
Mask_Set => PCH_PP_OFF_DELAYS_PWR_DOWN
@@ -227,7 +249,7 @@
(Delays_US (BL_Off_To_Power_Down)));
Registers.Unset_And_Set_Mask
- (Register => Registers.PCH_PP_DIVISOR,
+ (Register => Panel_PP_Regs.DIVISOR,
Mask_Unset => PCH_PP_DIVISOR_PWR_CYC_DELAY_MASK,
Mask_Set => PCH_PP_DIVISOR_PWR_CYC_DELAY
(Delays_US (Power_Cycle_Delay)));
@@ -235,13 +257,13 @@
if Config.Has_PP_Write_Protection then
Registers.Unset_And_Set_Mask
- (Register => Registers.PCH_PP_CONTROL,
+ (Register => Panel_PP_Regs.CONTROL,
Mask_Unset => PCH_PP_CONTROL_WRITE_PROTECT_MASK,
Mask_Set => PCH_PP_CONTROL_WRITE_PROTECT_KEY or
PCH_PP_CONTROL_POWER_DOWN_ON_RESET);
else
Registers.Set_Mask
- (Register => Registers.PCH_PP_CONTROL,
+ (Register => Panel_PP_Regs.CONTROL,
Mask => PCH_PP_CONTROL_POWER_DOWN_ON_RESET);
end if;
end Setup_PP_Sequencer;
@@ -265,12 +287,12 @@
begin
pragma Debug (Debug.Put_Line (GNAT.Source_Info.Enclosing_Entity));
- Registers.Is_Set_Mask (Registers.PCH_PP_CONTROL, PCH_PP_CONTROL_TARGET_ON, Was_On);
+ Registers.Is_Set_Mask (Panel_PP_Regs.CONTROL, PCH_PP_CONTROL_TARGET_ON, Was_On);
if not Was_On then
Time.Delay_Until (Power_Cycle_Timer);
end if;
- Registers.Set_Mask (Registers.PCH_PP_CONTROL, PCH_PP_CONTROL_TARGET_ON);
+ Registers.Set_Mask (Panel_PP_Regs.CONTROL, PCH_PP_CONTROL_TARGET_ON);
if not Was_On then
Power_Up_Timer := Time.US_From_Now (Delays_US (Power_Up_Delay));
end if;
@@ -285,11 +307,11 @@
Time.Delay_Until (Power_Up_Timer);
Registers.Wait_Unset_Mask
- (Register => Registers.PCH_PP_STATUS,
+ (Register => Panel_PP_Regs.STATUS,
Mask => PCH_PP_STATUS_PWR_SEQ_PROGRESS_MASK,
TOut_MS => 300);
- Registers.Unset_Mask (Registers.PCH_PP_CONTROL, PCH_PP_CONTROL_VDD_OVERRIDE);
+ Registers.Unset_Mask (Panel_PP_Regs.CONTROL, PCH_PP_CONTROL_VDD_OVERRIDE);
end Wait_On;
procedure Off
@@ -298,16 +320,16 @@
begin
pragma Debug (Debug.Put_Line (GNAT.Source_Info.Enclosing_Entity));
- Registers.Is_Set_Mask (Registers.PCH_PP_CONTROL, PCH_PP_CONTROL_TARGET_ON, Was_On);
+ Registers.Is_Set_Mask (Panel_PP_Regs.CONTROL, PCH_PP_CONTROL_TARGET_ON, Was_On);
Registers.Unset_Mask
- (Register => Registers.PCH_PP_CONTROL,
+ (Register => Panel_PP_Regs.CONTROL,
Mask => PCH_PP_CONTROL_TARGET_ON or
PCH_PP_CONTROL_VDD_OVERRIDE);
if Was_On then
Time.U_Delay (Delays_US (Power_Down_Delay));
end if;
Registers.Wait_Unset_Mask
- (Register => Registers.PCH_PP_STATUS,
+ (Register => Panel_PP_Regs.STATUS,
Mask => PCH_PP_STATUS_PWR_SEQ_PROGRESS_MASK,
TOut_MS => 600);
if Was_On then
@@ -322,7 +344,7 @@
pragma Debug (Debug.Put_Line (GNAT.Source_Info.Enclosing_Entity));
Registers.Set_Mask
- (Register => Registers.PCH_PP_CONTROL,
+ (Register => Panel_PP_Regs.CONTROL,
Mask => PCH_PP_CONTROL_BACKLIGHT_ENABLE);
end Backlight_On;
@@ -331,7 +353,7 @@
pragma Debug (Debug.Put_Line (GNAT.Source_Info.Enclosing_Entity));
Registers.Unset_Mask
- (Register => Registers.PCH_PP_CONTROL,
+ (Register => Panel_PP_Regs.CONTROL,
Mask => PCH_PP_CONTROL_BACKLIGHT_ENABLE);
end Backlight_Off;
diff --git a/common/hw-gfx-gma-registers.ads b/common/hw-gfx-gma-registers.ads
index 40d3437..468d79d 100644
--- a/common/hw-gfx-gma-registers.ads
+++ b/common/hw-gfx-gma-registers.ads
@@ -155,6 +155,11 @@
PIPEB_LINK_M1,
PIPEB_LINK_N1,
FDI_TX_CTL_B,
+ GMCH_PP_STATUS,
+ GMCH_PP_CONTROL,
+ GMCH_PP_ON_DELAYS,
+ GMCH_PP_OFF_DELAYS,
+ GMCH_PP_DIVISOR,
PIPEB_DDI_FUNC_CTL,
PIPEB_MSA_MISC,
SRD_CTL_B,
@@ -1283,6 +1288,11 @@
PWR_WELL_CTL6 => 16#04_5414# / Register_Width,
-- class Panel registers
+ GMCH_PP_STATUS => 16#06_1200# / Register_Width,
+ GMCH_PP_CONTROL => 16#06_1204# / Register_Width,
+ GMCH_PP_ON_DELAYS => 16#06_1208# / Register_Width,
+ GMCH_PP_OFF_DELAYS => 16#06_120c# / Register_Width,
+ GMCH_PP_DIVISOR => 16#06_1210# / Register_Width,
PCH_PP_STATUS => 16#0c_7200# / Register_Width,
PCH_PP_CONTROL => 16#0c_7204# / Register_Width,
PCH_PP_ON_DELAYS => 16#0c_7208# / Register_Width,