See patch
--
coresystems GmbH . Brahmsstr. 16 . D-79104 Freiburg i. Br.
Tel.: +49 761 7668825 . Fax: +49 761 7664613
Email: [email protected] . http://www.coresystems.de/
Registergericht: Amtsgericht Freiburg . HRB 7656
Geschäftsführer: Stefan Reinauer . Ust-IdNr.: DE245674866
Add Yabel support (int 15 5fXX callbacks for vga bios) on the kontron 986lcd-m
so it's possible to use the LCD panel connector. Values are hard coded instead
of read from CMOS but it's a start.
Signed-off-by: Stefan Reinauer <[email protected]>
--- src/mainboard/kontron/986lcd-m/mainboard.c
(.../branches/upstream/coreboot)
+++ src/mainboard/kontron/986lcd-m/mainboard.c (.../trunk/coreboot)
@@ -23,6 +23,7 @@
#include <device/device.h>
#include <console/console.h>
#include <boot/tables.h>
+#include <x86emu/x86emu.h>
#include <pc80/mc146818rtc.h>
#include <arch/io.h>
#include "chip.h"
@@ -34,6 +35,49 @@
return add_northbridge_resources(mem);
}
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+static int int15_handler(void)
+{
+#define BOOT_DISPLAY_DEFAULT 0
+#define BOOT_DISPLAY_CRT (1 << 0)
+#define BOOT_DISPLAY_TV (1 << 1)
+#define BOOT_DISPLAY_EFP (1 << 2)
+#define BOOT_DISPLAY_LCD (1 << 3)
+#define BOOT_DISPLAY_CRT2 (1 << 4)
+#define BOOT_DISPLAY_TV2 (1 << 5)
+#define BOOT_DISPLAY_EFP2 (1 << 6)
+#define BOOT_DISPLAY_LCD2 (1 << 7)
+
+ printk_debug("%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
+ __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX,
M.x86.R_DX);
+
+ switch (M.x86.R_AX) {
+ case 0x5f35: /* Boot Display */
+ M.x86.R_AX = 0x005f; // Success
+ M.x86.R_CL = BOOT_DISPLAY_DEFAULT;
+ break;
+ case 0x5f40: /* Boot Panel Type */
+ // M.x86.R_AX = 0x015f; // Supported but failed
+ M.x86.R_AX = 0x005f; // Success
+ M.x86.R_CL = 3; // Display ID
+ break;
+ default:
+ /* Interrupt was not handled */
+ return 0;
+ }
+
+ /* Interrupt handled */
+ return 1;
+}
+
+static void int15_install(void)
+{
+ typedef int (* yabel_handleIntFunc)(void);
+ extern yabel_handleIntFunc yabel_intFuncArray[256];
+ yabel_intFuncArray[0x15] = int15_handler;
+}
+#endif
+
/* Hardware Monitor */
static u16 hwm_base = 0xa00;
@@ -182,8 +226,13 @@
// mainboard_enable is executed as first thing after
// enumerate_buses().
+
static void mainboard_enable(device_t dev)
{
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+ /* Install custom int15 handler for VGA OPROM */
+ int15_install();
+#endif
verb_setup();
hwm_setup();
}
--
coreboot mailing list: [email protected]
http://www.coreboot.org/mailman/listinfo/coreboot
