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authorKevin O'Connor <kevin@koconnor.net>2010-09-06 20:20:47 +0000
committerMyles Watson <mylesgw@gmail.com>2010-09-06 20:20:47 +0000
commit31b2e8f566c886386187d5580b5ca1569f36e9b1 (patch)
tree8bf4f8eadb727aab799fd7183ecd1bde45051c39 /src/mainboard
parentf7a999ae65cc5825ac8e2fce34638a142b444ce3 (diff)
downloadcoreboot-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/mainboard')
-rw-r--r--src/mainboard/emulation/qemu-x86/mainboard.c41
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,