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/*
* Copyright 2004 Tyan Computer
* by yhlu@tyan.com
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "ck804.h"
static void pci_init(struct device *dev)
{
uint32_t dword;
#if CONFIG_PCI_64BIT_PREF_MEM == 1
device_t pci_domain_dev;
struct resource *mem1, *mem2;
#endif
dword = pci_read_config32(dev, 0x04);
dword |= (1 << 8); /* System error enable */
dword |= (1 << 30); /* Clear possible errors */
pci_write_config32(dev, 0x04, dword);
#if 0
word = pci_read_config16(dev, 0x48);
word |= (1 << 0); /* MRL2MRM */
word |= (1 << 2); /* MR2MRM */
pci_write_config16(dev, 0x48, word);
#endif
#if 1
dword = pci_read_config32(dev, 0x4c);
dword |= 0x00440000; /* TABORT_SER_ENABLE Park Last Enable. */
pci_write_config32(dev, 0x4c, dword);
#endif
#if CONFIG_PCI_64BIT_PREF_MEM == 1
pci_domain_dev = dev->bus->dev;
while (pci_domain_dev) {
if (pci_domain_dev->path.type == DEVICE_PATH_PCI_DOMAIN)
break;
pci_domain_dev = pci_domain_dev->bus->dev;
}
if (!pci_domain_dev)
return; /* Impossible */
mem1 = find_resource(pci_domain_dev, 1); // prefmem, it could be 64bit
mem2 = find_resource(pci_domain_dev, 2); // mem
if (mem1->base > mem2->base) {
dword = mem2->base & (0xffff0000UL);
printk_debug("PCI DOMAIN mem2 base = 0x%010Lx\n", mem2->base);
} else {
dword = mem1->base & (0xffff0000UL);
printk_debug("PCI DOMAIN mem1 (prefmem) base = 0x%010Lx\n",
mem1->base);
}
#else
dword = dev_root.resource[1].base & (0xffff0000UL);
printk_debug("dev_root mem base = 0x%010Lx\n",
dev_root.resource[1].base);
#endif
printk_debug("[0x50] <-- 0x%08x\n", dword);
pci_write_config32(dev, 0x50, dword); /* TOM */
}
static struct pci_operations lops_pci = {
.set_subsystem = 0,
};
static struct device_operations pci_ops = {
.read_resources = pci_bus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_bus_enable_resources,
.init = pci_init,
.scan_bus = pci_scan_bridge,
// .enable = ck804_enable,
.ops_pci = &lops_pci,
};
static const struct pci_driver pci_driver __pci_driver = {
.ops = &pci_ops,
.vendor = PCI_VENDOR_ID_NVIDIA,
.device = PCI_DEVICE_ID_NVIDIA_CK804_PCI,
};
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