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#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <pc80/mc146818rtc.h>
#include "82870.h"
static int ioapic_no = 0;
static void p64h2_ioapic_enable(device_t dev)
{
uint32_t dword;
uint16_t word;
/* We have to enable MEM and Bus Master for IOAPIC */
word = 0x0146;
pci_write_config16(dev, PCICMD, word);
dword = 0x358015d9;
pci_write_config32(dev, SUBSYS, dword);
}
static void p64h2_ioapic_init(device_t dev)
{
uint32_t dword;
uint16_t word;
int i, addr;
volatile uint32_t *ioapic_a; /* io apic io memory space command address */
volatile uint32_t *ioapic_d; /* io apic io memory space data address */
i = ioapic_no++;
if(i<3) /* io apic address numbers are 3,4,5,&8 */
addr=i+3;
else
addr=i+5;
/* Read the MBAR address for setting up the io apic in io memory space */
dword = pci_read_config32(dev, PCI_BASE_ADDRESS_0);
ioapic_a = (uint32_t *) dword;
ioapic_d = ioapic_a +0x04;
printk_debug("IOAPIC %d at %02x:%02x.%01x MBAR = %x DataAddr = %x\n",
addr, dev->bus->secondary,
PCI_SLOT(dev->path.u.pci.devfn), PCI_FUNC(dev->path.u.pci.devfn),
ioapic_a, ioapic_d);
#if 0
dword = (u32)ioapic_a;
word = 0x8000 + ((dword >>8)&0x0fff);
pci_write_config_word(dev, ABAR, word);
#endif
/* Set up the io apic for the p64h2 - 1461 */
*ioapic_a=0;
*ioapic_d=(addr<<24); /* Set the address number */
*ioapic_a=3;
*ioapic_d=1; /* Enable the io apic */
/* This code test the setup to see if we really found the io apic */
*ioapic_a=0;
dword=*ioapic_d;
printk_debug("PCI %d apic id = %x\n",addr,dword);
if(dword!=(addr<<24))
for(;;);
*ioapic_a=3;
dword=*ioapic_d;
printk_debug("PCI %d apic DT = %x\n",addr,dword);
if(dword!=1)
for(;;);
}
static struct device_operations ioapic_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = p64h2_ioapic_init,
.scan_bus = 0,
.enable = p64h2_ioapic_enable,
};
static struct pci_driver ioapic_driver __pci_driver = {
.ops = &ioapic_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_82870_1E0,
};
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