baytrail: Factor out INT15 handler

The handler is the same on all Bay Trail mainboards. Factor it out.

Change-Id: Ia1b6faaca4792cda5f14948d23498182bf4bb2c3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54415
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Benjamin Doron <benjamin.doron00@gmail.com>
Reviewed-by: Máté Kukri <kukri.mate@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 3 insertions, 94 deletions

diff --git a/src/mainboard/bostentech/gbyt4/mainboard.c b/src/mainboard/bostentech/gbyt4/mainboard.c
index d0131bc2d18b..da7106aafbb9 100644
--- a/src/mainboard/bostentech/gbyt4/mainboard.c
+++ b/src/mainboard/bostentech/gbyt4/mainboard.c
@@ -1,107 +1,16 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <device/device.h>
-#include <console/console.h>
-#if CONFIG(VGA_ROM_RUN)
-#include <x86emu/x86emu.h>
-#endif
-#include <arch/interrupt.h>
-
-#if CONFIG(VGA_ROM_RUN)
-static int int15_handler(void)
-{
-	int res = 1;
-
-	printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
-	       __func__, X86_AX, X86_BX, X86_CX, X86_DX);
-
-	switch (X86_AX) {
-	case 0x5f34:
-		/*
-		 * Set Panel Fitting Hook:
-		 *  bit 2 = Graphics Stretching
-		 *  bit 1 = Text Stretching
-		 *  bit 0 = Centering (do not set with bit1 or bit2)
-		 *  0     = video BIOS default
-		 */
-		X86_AX = 0x005f;
-		X86_CX = 0x0001;
-		res = 1;
-		break;
-	case 0x5f35:
-		/*
-		 * Boot Display Device Hook:
-		 *  bit 0 = CRT
-		 *  bit 1 = TV
-		 *  bit 2 = EFP (HDMI)
-		 *  bit 3 = LFP (eDP)*
-		 *  bit 4 = CRT2
-		 *  bit 5 = TV2
-		 *  bit 6 = EFP2
-		 *  bit 7 = LFP2
-		 */
-		X86_AX = 0x005f;
-		X86_CX = 0x0008;
-		res = 1;
-		break;
-	case 0x5f51:
-		/*
-		 * Hook to select active LFP configuration:
-		 *  00h = No LVDS, VBIOS does not enable LVDS
-		 *  01h = Int-LVDS, LFP driven by integrated LVDS decoder
-		 *  02h = SVDO-LVDS, LFP driven by SVDO decoder
-		 *  03h = eDP, LFP Driven by Int-DisplayPort encoder
-		 */
-		X86_AX = 0x005f;
-		X86_CX = 0x0003;
-		res = 1;
-		break;
-	case 0x5f70:
-		switch ((X86_CX >> 8) & 0xff) {
-		case 0:
-			/* Get Mux */
-			X86_AX = 0x005f;
-			X86_CX = 0x0000;
-			res = 1;
-			break;
-		case 1:
-			/* Set Mux */
-			X86_AX = 0x005f;
-			X86_CX = 0x0000;
-			res = 1;
-			break;
-		case 2:
-			/* Get SG/Non-SG mode */
-			X86_AX = 0x005f;
-			X86_CX = 0x0000;
-			res = 1;
-			break;
-		default:
-			/* Interrupt was not handled */
-			printk(BIOS_DEBUG,
-			       "Unknown INT15 5f70 function: 0x%02x\n",
-				((X86_CX >> 8) & 0xff));
-			break;
-		}
-		break;
-
-	default:
-		printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX);
-		break;
-	}
-	return res;
-}
-#endif
+#include <soc/int15.h>
 
 // mainboard_enable is executed as first thing after
 // enumerate_buses().
 
 static void mainboard_enable(struct device *dev)
 {
-#if CONFIG(VGA_ROM_RUN)
 	/* Install custom int15 handler for VGA OPROM */
-	mainboard_interrupt_handlers(0x15, &int15_handler);
-#endif
+	if (CONFIG(VGA_ROM_RUN))
+		install_baytrail_vga_int15_handler();
 }
 
 struct chip_operations mainboard_ops = {