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This patch makes sure that VGA is initialized before it is used. Without 

this fix, LinuxBIOS crashes if the CONSOLE_LOG_LEVEL is high enough.

Additionally, The VGA option rom will be executed if either
CONFIG_PCI_ROM_RUN=1 or CONFIG_CONSOLE_VGA=1.

Signed-off-by: Roman Kononov <kononov195-lbl@yahoo.com>
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2587 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Roman Kononov 2007-04-06 18:34:39 +00:00 committed by Stefan Reinauer
parent ba43064d32
commit 778a42b129
2 changed files with 24 additions and 6 deletions
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24
src/devices/pci_device.c
View File

@ -633,17 +633,39 @@ void pci_dev_set_subsystem(device_t dev, unsigned vendor, unsigned device)
void pci_dev_init(struct device *dev)
{
#if CONFIG_PCI_ROM_RUN == 1
#if CONFIG_CONSOLE_VGA == 1
extern int vga_inited;
#endif
#if CONFIG_PCI_ROM_RUN == 1 || CONFIG_CONSOLE_VGA == 1
struct rom_header *rom, *ram;
#if CONFIG_PCI_ROM_RUN != 1
/* We want to execute VGA option ROMs when CONFIG_CONSOLE_VGA
* is set but CONFIG_PCI_ROM_RUN is not. In this case we skip
* all other option ROM types.
*/
if (dev->class!=PCI_CLASS_DISPLAY_VGA)
return;
#endif
rom = pci_rom_probe(dev);
if (rom == NULL)
return;
ram = pci_rom_load(dev, rom);
if (ram == NULL)
return;
run_bios(dev, ram);
#if CONFIG_CONSOLE_VGA == 1
/* vga_inited is a trigger of the VGA console code.
*
* Only set it if we enabled VGA console, and if we
* just initialized a VGA card.
*/
vga_inited|=dev->class==PCI_CLASS_DISPLAY_VGA;
#endif
#endif
}

6
src/devices/pci_rom.c
View File

@ -62,12 +62,9 @@ struct rom_header * pci_rom_probe(struct device *dev)
static void *pci_ram_image_start = (void *)PCI_RAM_IMAGE_START;
#if CONFIG_CONSOLE_VGA == 1
extern int vga_inited; // defined in vga_console.c
#if CONFIG_CONSOLE_VGA_MULTI == 0
#if CONFIG_CONSOLE_VGA == 1 && CONFIG_CONSOLE_VGA_MULTI == 0
extern device_t vga_pri; // the primary vga device, defined in device.c
#endif
#endif
struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_header)
{
@ -96,7 +93,6 @@ struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_heade
printk_debug("copying VGA ROM Image from 0x%x to 0x%x, 0x%x bytes\n",
rom_header, PCI_VGA_RAM_IMAGE_START, rom_size);
memcpy(PCI_VGA_RAM_IMAGE_START, rom_header, rom_size);
vga_inited = 1;
return (struct rom_header *) (PCI_VGA_RAM_IMAGE_START);
#endif
} else {