diff options
| author | Stefan Reinauer <stepan@coresystems.de> | 2010-04-11 20:04:50 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2010-04-11 20:04:50 +0000 |
| commit | d9466493ec85045659336d11868ddd626944b650 (patch) | |
| tree | f0c6e55e1c890433308e0fabb8ca35a364b86324 /src/mainboard | |
| parent | 4cc5af95b510141214fb454ffbf7796d4e086813 (diff) | |
add int15 handler for thomson ip1000
fix mbi length detection, this will remove what looked like an endless loop
during vga init in some cases.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5408 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/thomson/ip1000/mainboard.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/mainboard/thomson/ip1000/mainboard.c b/src/mainboard/thomson/ip1000/mainboard.c index f8f775a348..eeac3e3fc9 100644 --- a/src/mainboard/thomson/ip1000/mainboard.c +++ b/src/mainboard/thomson/ip1000/mainboard.c @@ -22,6 +22,9 @@ #include <device/device.h> #include <boot/tables.h> #include <delay.h> +#if CONFIG_PCI_OPTION_ROM_RUN_YABEL +#include <x86emu/x86emu.h> +#endif #include <arch/coreboot_tables.h> #include <arch/io.h> #include "chip.h" @@ -102,6 +105,61 @@ static void flash_gpios(void) } } + +#if CONFIG_PCI_OPTION_ROM_RUN_YABEL +static int int15_handler(void) +{ + u8 display_id; +#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(BIOS_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_TV; + M.x86.R_CL = BOOT_DISPLAY_DEFAULT; + break; + case 0x5f36: /* Boot TV Format Hook */ + printk(BIOS_DEBUG, "Boot TV Format Hook. TODO\n"); + /* Interrupt was not handled */ + return 0; + case 0x5f31: /* Post Completion Hook */ + case 0x5f33: /* Hook After Mode Set */ + case 0x5f34: /* Set Panel Fitting Hook */ + case 0x5f38: /* Hook Before Mode Set */ + case 0x5f45: /* Hook Before VESA VBE/DDC */ + case 0x5f46: /* Hook Before VESA VBE/PM */ + case 0x5f47: /* Notif Display Switch Hook */ + case 0x5f65: /* Local Memory Initialization Hook */ + /* Interrupt was not handled */ + return 0; + 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 + static void mainboard_init(device_t dev) { parport_gpios(); @@ -111,6 +169,10 @@ static void mainboard_init(device_t dev) static void mainboard_enable(device_t dev) { dev->ops->init = mainboard_init; +#if CONFIG_PCI_OPTION_ROM_RUN_YABEL + /* Install custom int15 handler for VGA OPROM */ + int15_install(); +#endif } struct chip_operations mainboard_ops = { |