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linkb_to_host and addon display card override onboard card.

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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1880 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu
2005-01-17 21:37:12 +00:00
parent c507e4de73
commit 1f1085b433
3 changed files with 65 additions and 45 deletions
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60
src/devices/device.c
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@@ -363,35 +363,44 @@ void compute_allocate_resource(
}
#if CONFIG_CONSOLE_VGA == 1
device_t vga_pri = 0;
static void allocate_vga_resource(void)
{
#warning "FIXME modify allocate_vga_resource so it is less pci centric!"
#warning "This function knows to much about PCI stuff, it should be just a ietrator/visitor."
/* FIXME handle the VGA pallette snooping */
struct device *dev, *vga;
struct device *dev, *vga, *vga_onboard;
struct bus *bus;
bus = 0;
vga = 0;
vga_onboard = 0;
for (dev = all_devices; dev; dev = dev->next) {
if ( !dev->enabled ) continue;
if (((dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
((dev->class >> 8) != PCI_CLASS_DISPLAY_OTHER)) {
if (!vga) {
printk_debug("Allocating VGA resource %s\n", dev_path(dev));
vga = dev;
}
if (vga == dev) {
/* All legacy VGA cards have MEM & I/O space registers */
dev->command |= PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
} else {
/* It isn't safe to enable other VGA cards */
dev->command &= ~(PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
if (dev->on_mainboard) {
vga_onboard = dev;
}
else {
vga = dev;
}
}
/* It isn't safe to enable other VGA cards */
dev->command &= ~(PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
}
}
if (vga) {
if (!vga) {
vga = vga_onboard;
}
if (vga) { // vga is first add on card or the only onboard vga
printk_debug("Allocating VGA resource %s\n", dev_path(vga));
vga->command |= (PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
vga_pri = vga;
bus = vga->bus;
}
/* Now walk up the bridges setting the VGA enable */
@@ -402,8 +411,10 @@ static void allocate_vga_resource(void)
bus = (bus == bus->dev->bus)? 0 : bus->dev->bus;
}
}
#endif
/**
* @brief Assign the computed resources to the devices on the bus.
*
@@ -603,28 +614,27 @@ void dev_initialize(void)
printk_info("Initializing devices...\n");
#if CONFIG_CONSOLE_VGA == 1
for (dev = all_devices; dev; dev = dev->next) {
if ( !dev->enabled ) continue;
if (dev->enabled && !dev->initialized &&
dev->ops && dev->ops->init)
{
if( !dev->on_mainboard ) continue; // process addon card in second run
else if( dev->rom_address!=0 ) continue; // onboard and it is assigned via MB Config.lb, process it later
printk_debug("%s init\n", dev_path(dev));
dev->initialized = 1;
dev->ops->init(dev);
}
}
#endif
for (dev = all_devices; dev; dev = dev->next) {
if (dev->enabled && !dev->initialized &&
dev->ops && dev->ops->init)
{
if( !dev->on_mainboard ) continue; // process addon card in second run
else if( dev->rom_address!=0 ) continue; // onboard and it is assigned via MB Config.lb, process it later
printk_debug("%s init\n", dev_path(dev));
dev->initialized = 1;
dev->ops->init(dev);
}
}
#endif
for (dev = all_devices; dev; dev = dev->next) {
if (dev->enabled && !dev->initialized &&
dev->ops && dev->ops->init)
{
printk_debug("%s init\n", dev_path(dev));
dev->initialized = 1;
dev->ops->init(dev);
}
}
printk_info("Devices initialized\n");
}