Add Siemens SITEMP-G1 board

The code is loosely based on AMD dbm690t (and copied from there)
and adapted to match the Siemens SITEMP-G1 board.
It boots both Linux and Windows XP (and if it doesn't then complain
with me [Patrick] because in that case I must have messed it up when
integrating the patch)

Signed-off-by: Josef Kellermann <seppk@arcor.de>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6567 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 111 insertions, 0 deletions

diff --git a/src/mainboard/siemens/sitemp_g1p1/int15_func.c b/src/mainboard/siemens/sitemp_g1p1/int15_func.c
new file mode 100644
index 0000000000..0d2da370ff
--- /dev/null
+++ b/src/mainboard/siemens/sitemp_g1p1/int15_func.c
@@ -0,0 +1,111 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 coresystems GmbH
+ * Copyright (C) 2009 Libra Li <libra.li@technexion.com>
+ * Copyright (C) 2010 Siemens AG, Inc.
+ * (Written by Josef Kellermann <joseph.kellermann@heitec.de> for Siemens AG, Inc.)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+ 
+#include <stdint.h>
+#include <stdlib.h>
+#include <console/console.h>
+#include <arch/interrupt.h>
+#include "int15_func.h"
+
+int sbios_INT15_handler(struct eregs *);
+/*extern*/ unsigned long vgainfo_addr;
+
+static INT15_function_extensions __int15_func;
+
+/* System BIOS int15 function */
+int sbios_INT15_handler(struct eregs *regs)
+{
+    int res = -1;
+
+    printk(BIOS_DEBUG, "System BIOS INT 15h\n");
+
+    switch (regs->eax & 0xffff) {
+#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)
+	case 0x5f35:
+		regs->eax = 0x5f;
+		regs->ecx = BOOT_DISPLAY_DEFAULT;
+		res = 0;
+		break;
+	case 0x5f40:
+		regs->eax = 0x5f;
+		regs->ecx = 3; // This is mainboard specific
+		printk(BIOS_DEBUG, "DISPLAY=%x\n", regs->ecx);
+		res = 0;
+		break;
+    case 0x4e08:
+        switch (regs->ebx & 0xff) {
+        case 0x00:
+            regs->eax &= ~(0xff);
+            regs->ebx = (regs->ebx & ~(0xff)) | __int15_func.regs.func00_LCD_panel_id;
+			printk(BIOS_DEBUG, "DISPLAY = %x\n", regs->ebx & 0xff);
+            res = 0;
+			break;
+		case 0x02:
+			break;
+        case 0x05:
+            regs->eax &= ~(0xff);
+            regs->ebx = (regs->ebx & ~(0xff)) | __int15_func.regs.func05_TV_standard;
+			printk(BIOS_DEBUG, "TV = %x\n", regs->ebx & 0xff);
+            res = 0;
+			break;
+		case 0x80:
+			regs->eax &= ~(0xff);
+			regs->ebx &= ~(0xff);
+			printk(BIOS_DEBUG, "Integrated System Information = %x:%x\n", regs->edx, regs->edi);
+			vgainfo_addr = (regs->edx * 16) + regs->edi; 
+			res = 0;
+			break;
+		case 0x89:
+			regs->eax &= ~(0xff);
+			regs->ebx &= ~(0xff);
+			printk(BIOS_DEBUG, "Get supported display device information\n");
+			res = 0;
+			break;
+		default:
+			break;
+        }
+        break;
+	default:
+        printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", regs->eax & 0xffff);
+		break;
+    }
+
+    return res;
+}
+
+/* Initialization VBIOS function extensions */
+void install_INT15_function_extensions(INT15_function_extensions *int15_func)
+{
+	printk(BIOS_DEBUG, "Initialize function extensions for Callback function number 04E08h ..\n");
+	__int15_func.regs.func00_LCD_panel_id = int15_func->regs.func00_LCD_panel_id;
+	__int15_func.regs.func05_TV_standard = int15_func->regs.func05_TV_standard;
+	mainboard_interrupt_handlers(0x15, &sbios_INT15_handler);
+}