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authorStefan Reinauer <reinauer@chromium.org>2011-10-12 14:25:07 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2011-10-13 20:00:37 +0200
commit216fa4633a583fcc278186e1f927f32332d1e5c5 (patch)
tree505828f2e861068aece46728aea941d562e48771 /src/mainboard/kontron/986lcd-m/mainboard.c
parent491e2a29b9b29565f4023ac7ce32dbb5c284cb6e (diff)
downloadcoreboot-216fa4633a583fcc278186e1f927f32332d1e5c5.tar.xz
Refactor option rom initialization code in coreboot.
- move int15 handler out of the generic code into the mainboard directories of those mainboards that actually use it. - move vbe headers to vbe.h - move function prototypes used in native oprom code to x86.h Change-Id: Idfff5e804ea328f7b5feebac72497c97329320ee Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/255 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
Diffstat (limited to 'src/mainboard/kontron/986lcd-m/mainboard.c')
-rw-r--r--src/mainboard/kontron/986lcd-m/mainboard.c50
1 files changed, 49 insertions, 1 deletions
diff --git a/src/mainboard/kontron/986lcd-m/mainboard.c b/src/mainboard/kontron/986lcd-m/mainboard.c
index 1d0c4946b2..d7b1f13cc1 100644
--- a/src/mainboard/kontron/986lcd-m/mainboard.c
+++ b/src/mainboard/kontron/986lcd-m/mainboard.c
@@ -25,6 +25,7 @@
#endif
#include <pc80/mc146818rtc.h>
#include <arch/io.h>
+#include <arch/interrupt.h>
#include "chip.h"
#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
@@ -70,6 +71,53 @@ static void int15_install(void)
}
#endif
+#if defined(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) && CONFIG_PCI_OPTION_ROM_RUN_REALMODE
+static int int15_handler(struct eregs *regs)
+{
+ int res = -1;
+
+ /* This int15 handler is Intel IGD. specific. Other chipsets need other
+ * handlers. The right way to do this is to move this handler code into
+ * the mainboard or northbridge code.
+ * TODO: completely move to mainboards / chipsets.
+ */
+ switch (regs->eax & 0xffff) {
+ /* And now Intel IGD code */
+#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;
+ default:
+ printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n",
+ regs->eax & 0xffff);
+ }
+
+ return res;
+}
+
+static void int15_install(void)
+{
+ mainboard_interrupt_handlers(0x15, &int15_handler);
+}
+#endif
+
+
/* Hardware Monitor */
static u16 hwm_base = 0xa00;
@@ -221,7 +269,7 @@ static void verb_setup(void)
static void mainboard_enable(device_t dev)
{
-#if CONFIG_PCI_OPTION_ROM_RUN_YABEL
+#if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE
/* Install custom int15 handler for VGA OPROM */
int15_install();
#endif