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When loading an option ROM use the class stored in the device to 

decide whether the option ROM is a special VGA type.

An S3 card that I've got has the wrong class in the VGA BIOS.
(A Stealth 64 DRAM T PCI, from 1994 - BIOS V2.02)

Signed-off-by: Mark Marshall <mark.marshall@csr.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4909 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Mark Marshall 2009-11-05 08:10:12 +00:00 committed by Stefan Reinauer
parent 5fc7f98c51
commit 2fa7c2e210
1 changed files with 4 additions and 1 deletions
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5
src/devices/pci_rom.c
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@ -116,7 +116,10 @@ struct rom_header *pci_rom_load(struct device *dev, struct rom_header *rom_heade
rom_size = rom_header->size * 512;
if (PCI_CLASS_DISPLAY_VGA == rom_data->class_hi) {
// We check to see if the device thinks it is a VGA device not
// whether the ROM image is for a VGA device because some
// devices have a mismatch between the hardware and the ROM
if (PCI_CLASS_DISPLAY_VGA == (dev->class >> 8)) {
#if CONFIG_CONSOLE_VGA == 1 && CONFIG_CONSOLE_VGA_MULTI == 0
extern device_t vga_pri; // the primary vga device, defined in device.c
if (dev != vga_pri) return NULL; // only one VGA supported