diff options
| author | Kevin O'Connor <kevin@koconnor.net> | 2010-09-06 20:20:47 +0000 |
|---|---|---|
| committer | Myles Watson <mylesgw@gmail.com> | 2010-09-06 20:20:47 +0000 |
| commit | 31b2e8f566c886386187d5580b5ca1569f36e9b1 (patch) | |
| tree | 8bf4f8eadb727aab799fd7183ecd1bde45051c39 /src | |
| parent | f7a999ae65cc5825ac8e2fce34638a142b444ce3 (diff) | |
| download | coreboot-31b2e8f566c886386187d5580b5ca1569f36e9b1.tar.xz | |
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
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/emulation/qemu-x86/mainboard.c | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/src/mainboard/emulation/qemu-x86/mainboard.c b/src/mainboard/emulation/qemu-x86/mainboard.c index 7ab02d93c4..e4c978551f 100644 --- a/src/mainboard/emulation/qemu-x86/mainboard.c +++ b/src/mainboard/emulation/qemu-x86/mainboard.c @@ -10,15 +10,15 @@ /* not sure how these are routed in qemu */ 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, - * force coreboot to use it. - */ - dev->on_mainboard = 1; - - /* Now do the usual initialization */ - pci_dev_init(dev); + /* Map memory at 0xc0000 - 0xfffff */ + int i; + uint8_t v = pci_read_config8(dev, 0x59); + v |= 0x30; + pci_write_config8(dev, 0x59, v); + for (i=0; i<6; i++) + pci_write_config8(dev, 0x5a + i, 0x33); /* This sneaked in here, because Qemu does not * emulate a SuperIO chip @@ -32,6 +32,31 @@ static void qemu_init(device_t dev) 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 = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, |