Haswell/falco/peppy/slippy: continue to clean up FUI.

As a first step towards removing hardcodes from the FUI support,
change the haswell call to i915_lightup to panel_lightup, and pass the
intel_dp * as a parameter. Get rid of the scalar arguments and make
them part of intel_dp. Get rid of file-scope variables and use the
ones in the intel_dp struct. In falco, use functions that peppy
uses. Drop slippy support for FUI, it's a dead board; if this is ok
I'll remove the files next.

And, incidentally, fix the broken RGBX constant and change it to BGRX.

Change-Id: I46ef5a9ed8433382d042066ee3542af04cfc319a
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: https://chromium-review.googlesource.com/174932
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Commit-Queue: Ronald Minnich <rminnich@chromium.org>
Tested-by: Ronald Minnich <rminnich@chromium.org>
(cherry picked from commit 1e1ed410b445c8e2b7411e163d9d6f61499dc3f6)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6833
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
diff --git a/src/mainboard/google/falco/i915io.c b/src/mainboard/google/falco/i915io.c
index aae7f29..e1479f2 100644
--- a/src/mainboard/google/falco/i915io.c
+++ b/src/mainboard/google/falco/i915io.c
@@ -28,12 +28,6 @@
 #include <arch/io.h>
 #include "mainboard.h"
 
-/* these variables will be removed when the proper support is finished in src/drivers/intel/gma/intel_dp.c */
-int index;
-u32 auxout;
-u8 auxin[20];
-u8 msg[32];
-
 /* this function will either be renamed or subsumed into ./gma.c:i915_lightup */
 void runio(struct intel_dp *dp);
 
@@ -72,7 +66,7 @@
 
 	mainboard_set_port_clk_dp(dp);
 	gtt_write(DSPSTRIDE(dp->plane),dp->stride);
-	gtt_write(DSPCNTR(dp->plane),DISPLAY_PLANE_ENABLE|DISPPLANE_RGBX888);
+	gtt_write(DSPCNTR(dp->plane),DISPLAY_PLANE_ENABLE|DISPPLANE_BGRX888);
 	gtt_write(DEIIR,0x00000080);
 
 	gtt_write(TRANS_DDI_FUNC_CTL_EDP,dp->flags);
@@ -125,7 +119,7 @@
 	intel_dp_wait_reg(DEIIR, 0x00000000);
 
 	gtt_write(DSPSTRIDE(dp->plane),dp->stride);
-	gtt_write(DSPCNTR(dp->plane),DISPLAY_PLANE_ENABLE | DISPPLANE_RGBX888);
+	gtt_write(DSPCNTR(dp->plane),DISPLAY_PLANE_ENABLE | DISPPLANE_BGRX888);
 
 	gtt_write(PCH_PP_CONTROL,EDP_BLC_ENABLE | PANEL_POWER_RESET | PANEL_POWER_ON);