/*
* Fixup all PCIe nodes by setting the device_type property
* to "pci-endpoint" instead is "pci" for endpoint ports.
* This property will get checked later by the Linux driver
* to properly configure the PCIe port in Linux (again).
*/
void fdt_pcie_setup(void *blob)
{
const char *compat = "ibm,plb-pciex";
const char *prop = "device_type";
const char *prop_val = "pci-endpoint";
const u32 *port;
int no;
int rc;
/* Search first PCIe node */
no = fdt_node_offset_by_compatible(blob, -1, compat);
while (no != -FDT_ERR_NOTFOUND) {
port = fdt_getprop(blob, no, "port", NULL);
if (port == NULL) {
printf("WARNING: could not find port property\n");
} else {
if (is_end_point(*port)) {
rc = fdt_setprop(blob, no, prop, prop_val,
strlen(prop_val) + 1);
if (rc < 0)
printf("WARNING: could not set %s for %s: %s.\n",
prop, compat, fdt_strerror(rc));
}
}
/* Jump to next PCIe node */
no = fdt_node_offset_by_compatible(blob, no, compat);
}
}
void pcie_setup_hoses(int busno)
{
struct pci_controller *hose;
int i, bus;
int ret = 0;
char *env;
unsigned int delay;
/*
* assume we're called after the PCIX hose is initialized, which takes
* bus ID 0 and therefore start numbering PCIe's from 1.
*/
bus = busno;
for (i = 0; i <= 2; i++) {
/* Check for katmai card presence */
if (!katmai_pcie_card_present(i))
continue;
if (is_end_point(i))
ret = ppc4xx_init_pcie_endport(i);
else
ret = ppc4xx_init_pcie_rootport(i);
if (ret) {
printf("PCIE%d: initialization as %s failed\n", i,
is_end_point(i) ? "endpoint" : "root-complex");
continue;
}
hose = &pcie_hose[i];
hose->first_busno = bus;
hose->last_busno = bus;
hose->current_busno = bus;
/* setup mem resource */
pci_set_region(hose->regions + 0,
CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
CONFIG_SYS_PCIE_MEMBASE + i * CONFIG_SYS_PCIE_MEMSIZE,
CONFIG_SYS_PCIE_MEMSIZE,
PCI_REGION_MEM);
hose->region_count = 1;
pci_register_hose(hose);
if (is_end_point(i)) {
ppc4xx_setup_pcie_endpoint(hose, i);
/*
* Reson for no scanning is endpoint can not generate
* upstream configuration accesses.
*/
} else {
ppc4xx_setup_pcie_rootpoint(hose, i);
env = getenv ("pciscandelay");
if (env != NULL) {
delay = simple_strtoul(env, NULL, 10);
if (delay > 5)
printf("Warning, expect noticable delay before "
"PCIe scan due to 'pciscandelay' value!\n");
mdelay(delay * 1000);
}
/*
* Config access can only go down stream
*/
hose->last_busno = pci_hose_scan(hose);
bus = hose->last_busno + 1;
}
}
}