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authorRonald G. Minnich <rminnich@gmail.com>2003-10-02 00:08:42 +0000
committerRonald G. Minnich <rminnich@gmail.com>2003-10-02 00:08:42 +0000
commit6dd6c6850785dc55854446503dd2fe851fc6a77e (patch)
treeae56b1e7bb7f03b492fb4282000fe63cab209c45 /src/southbridge/via/vt8231
parente0005ba6d19ac79d3a883e0e5eccfce79a03ec40 (diff)
IRQ setup for EPIA
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1174 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/via/vt8231')
-rw-r--r--src/southbridge/via/vt8231/vt8231.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/southbridge/via/vt8231/vt8231.c b/src/southbridge/via/vt8231/vt8231.c
index 95e2ca573a..e849be16ac 100644
--- a/src/southbridge/via/vt8231/vt8231.c
+++ b/src/southbridge/via/vt8231/vt8231.c
@@ -146,12 +146,64 @@ static void ethernet_fixup()
* in the C code.
*/
static void vt8231_pci_enable(struct southbridge_via_vt8231_config *conf) {
+ /*
unsigned long busdevfn = 0x8000;
if (conf->enable_ide) {
printk_spew("%s: enabling IDE function\n", __FUNCTION__);
}
+ */
+}
+
+/* PIRQ init
+ */
+void pci_assign_irqs(unsigned bus, unsigned slot, const unsigned char pIntAtoD[4]);
+
+static const unsigned char southbridgeIrqs[4] = { 11, 5, 10, 12 };
+static const unsigned char enetIrqs[4] = { 11, 5, 10, 12 };
+static const unsigned char slotIrqs[4] = { 5, 10, 12, 11 };
+
+/*
+ Our IDSEL mappings are as follows
+ PCI slot is AD31 (device 15) (00:14.0)
+ Southbridge is AD28 (device 12) (00:11.0)
+*/
+static void pci_routing_fixup(void)
+{
+ device_t dev;
+
+ dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
+ printk_info("%s: dev is %p\n", __FUNCTION__, dev);
+ if (dev) {
+ /* initialize PCI interupts - these assignments depend
+ on the PCB routing of PINTA-D
+
+ PINTA = IRQ11
+ PINTB = IRQ5
+ PINTC = IRQ10
+ PINTD = IRQ12
+ */
+ pci_write_config8(dev, 0x55, 0xb0);
+ pci_write_config8(dev, 0x56, 0xa5);
+ pci_write_config8(dev, 0x57, 0xc0);
+ }
+
+ // Standard southbridge components
+ printk_info("setting southbridge\n");
+ pci_assign_irqs(0, 0x11, southbridgeIrqs);
+
+ // Ethernet built into southbridge
+ printk_info("setting ethernet\n");
+ pci_assign_irqs(0, 0x12, enetIrqs);
+
+ // PCI slot
+ printk_info("setting pci slot\n");
+ pci_assign_irqs(0, 0x14, slotIrqs);
+ printk_info("%s: DONE\n", __FUNCTION__);
}
+
+
+
static void vt8231_init(struct southbridge_via_vt8231_config *conf)
{
unsigned char enables;
@@ -377,6 +429,13 @@ southbridge_init(struct chip *chip, enum chip_pass pass)
case CONF_PASS_POST_PCI:
vt8231_init(conf);
+ printk_err("FUCK! ROUTING FIXUP!\n");
+ pci_routing_fixup();
+
+ break;
+ case CONF_PASS_PRE_BOOT:
+ printk_err("FUCK! ROUTING FIXUP!\n");
+ pci_routing_fixup();
break;
default: