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#include <arch/io.h>
#include <reset.h>
#include <device/pci_ids.h>
#define PCI_DEV(BUS, DEV, FN) ( \
(((BUS) & 0xFFF) << 20) | \
(((DEV) & 0x1F) << 15) | \
(((FN) & 0x7) << 12))
#define PCI_ID(VENDOR_ID, DEVICE_ID) \
((((DEVICE_ID) & 0xFFFF) << 16) | ((VENDOR_ID) & 0xFFFF))
static void pci_write_config8(pci_devfn_t dev, unsigned where, unsigned char value)
{
unsigned addr;
addr = (dev>>4) | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
outb(value, 0xCFC + (addr & 3));
}
static void pci_write_config32(pci_devfn_t dev, unsigned where, unsigned value)
{
unsigned addr;
addr = (dev>>4) | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
outl(value, 0xCFC);
}
static unsigned pci_read_config32(pci_devfn_t dev, unsigned where)
{
unsigned addr;
addr = (dev>>4) | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
return inl(0xCFC);
}
#define PCI_DEV_INVALID (0xffffffffU)
static pci_devfn_t pci_locate_device_on_bus(unsigned pci_id, unsigned bus)
{
pci_devfn_t dev, last;
dev = PCI_DEV(bus, 0, 0);
last = PCI_DEV(bus, 31, 7);
for(; dev <= last; dev += PCI_DEV(0,0,1)) {
unsigned int id;
id = pci_read_config32(dev, 0);
if (id == pci_id) {
return dev;
}
}
return PCI_DEV_INVALID;
}
#include "../../../northbridge/amd/amdk8/reset_test.c"
void hard_reset(void)
{
pci_devfn_t dev;
unsigned bus;
unsigned node = 0;
unsigned link = get_sblk();
/* Find the device.
* There can only be one 8111 on a hypertransport chain/bus.
*/
bus = node_link_to_bus(node, link);
dev = pci_locate_device_on_bus(
PCI_ID(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_ISA),
bus);
/* Reset */
set_bios_reset();
pci_write_config8(dev, 0x47, 1);
}
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