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Refactor option rom initialization code in coreboot.

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- 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>
This commit is contained in:
Stefan Reinauer
2011-10-12 14:25:07 -07:00
committed by Stefan Reinauer
parent 491e2a29b9
commit 216fa4633a
7 changed files with 343 additions and 253 deletions
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50
src/mainboard/kontron/986lcd-m/mainboard.c
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@@ -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