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Instead of requiring users to modify qemu to allow writes to 

0xc0000-0xfffff, have coreboot qemu support enable the memory range at
startup.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Acked-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5778 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Kevin O'Connor 2010-09-06 20:20:47 +00:00 committed by Myles Watson
parent f7a999ae65
commit 31b2e8f566
1 changed files with 33 additions and 8 deletions
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41
src/mainboard/emulation/qemu-x86/mainboard.c
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@ -10,15 +10,15 @@
/* not sure how these are routed in qemu */ /* not sure how these are routed in qemu */
static const unsigned char enetIrqs[4] = { 11, 0, 0, 0 }; static const unsigned char enetIrqs[4] = { 11, 0, 0, 0 };
static void qemu_init(device_t dev) static void qemu_nb_init(device_t dev)
{ {
/* The VGA OPROM already lives at 0xc0000, /* Map memory at 0xc0000 - 0xfffff */
* force coreboot to use it. int i;
*/ uint8_t v = pci_read_config8(dev, 0x59);
dev->on_mainboard = 1; v |= 0x30;
pci_write_config8(dev, 0x59, v);
/* Now do the usual initialization */ for (i=0; i<6; i++)
pci_dev_init(dev); pci_write_config8(dev, 0x5a + i, 0x33);
/* This sneaked in here, because Qemu does not /* This sneaked in here, because Qemu does not
* emulate a SuperIO chip * emulate a SuperIO chip
@ -32,6 +32,31 @@ static void qemu_init(device_t dev)
pci_assign_irqs(0, 3, enetIrqs); pci_assign_irqs(0, 3, enetIrqs);
} }
static struct device_operations nb_operations = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = qemu_nb_init,
.ops_pci = 0,
};
static const struct pci_driver nb_driver __pci_driver = {
.ops = &nb_operations,
.vendor = 0x8086,
.device = 0x1237,
};
static void qemu_init(device_t dev)
{
/* The VGA OPROM already lives at 0xc0000,
* force coreboot to use it.
*/
dev->on_mainboard = 1;
/* Now do the usual initialization */
pci_dev_init(dev);
}
static struct device_operations vga_operations = { static struct device_operations vga_operations = {
.read_resources = pci_dev_read_resources, .read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources, .set_resources = pci_dev_set_resources,