/*
- * arch/powerpc/kernel/pci_auto.c
- *
- * PCI autoconfiguration library
+ * PCI autoconfiguration library (legacy version, do not change)
*
* Author: Matt Porter <mporter@mvista.com>
*
#include <errno.h>
#include <pci.h>
+/*
+ * Do not change this file. Instead, convert your board to use CONFIG_DM_PCI
+ * and change pci_auto.c.
+ */
+
/* the user can define CONFIG_SYS_PCI_CACHE_LINE_SIZE to avoid problems */
#ifndef CONFIG_SYS_PCI_CACHE_LINE_SIZE
#define CONFIG_SYS_PCI_CACHE_LINE_SIZE 8
#endif
-/*
- *
- */
-
-void pciauto_region_init(struct pci_region *res)
-{
- /*
- * Avoid allocating PCI resources from address 0 -- this is illegal
- * according to PCI 2.1 and moreover, this is known to cause Linux IDE
- * drivers to fail. Use a reasonable starting value of 0x1000 instead.
- */
- res->bus_lower = res->bus_start ? res->bus_start : 0x1000;
-}
-
-void pciauto_region_align(struct pci_region *res, pci_size_t size)
-{
- res->bus_lower = ((res->bus_lower - 1) | (size - 1)) + 1;
-}
-
-int pciauto_region_allocate(struct pci_region *res, pci_size_t size,
- pci_addr_t *bar)
-{
- pci_addr_t addr;
-
- if (!res) {
- debug("No resource");
- goto error;
- }
-
- addr = ((res->bus_lower - 1) | (size - 1)) + 1;
-
- if (addr - res->bus_start + size > res->size) {
- debug("No room in resource");
- goto error;
- }
-
- res->bus_lower = addr + size;
-
- debug("address=0x%llx bus_lower=0x%llx", (unsigned long long)addr,
- (unsigned long long)res->bus_lower);
-
- *bar = addr;
- return 0;
-
- error:
- *bar = (pci_addr_t)-1;
- return -1;
-}
-
/*
*
*/
bar_res = prefetch;
else
bar_res = mem;
-#endif
debug("PCI Autoconfig: BAR %d, %s, size=0x%llx, ",
bar_nr, bar_res == prefetch ? "Prf" : "Mem",
(unsigned long long)bar_size);
+#endif
}
#ifndef CONFIG_PCI_ENUM_ONLY
struct pci_region *pci_io;
u16 cmdstat, prefechable_64;
-#ifdef CONFIG_DM_PCI
- /* The root controller has the region information */
- struct pci_controller *ctlr_hose = pci_bus_to_hose(0);
-
- pci_mem = ctlr_hose->pci_mem;
- pci_prefetch = ctlr_hose->pci_prefetch;
- pci_io = ctlr_hose->pci_io;
-#else
pci_mem = hose->pci_mem;
pci_prefetch = hose->pci_prefetch;
pci_io = hose->pci_io;
-#endif
pci_hose_read_config_word(hose, dev, PCI_COMMAND, &cmdstat);
pci_hose_read_config_word(hose, dev, PCI_PREF_MEMORY_BASE,
prefechable_64 &= PCI_PREF_RANGE_TYPE_MASK;
/* Configure bus number registers */
-#ifdef CONFIG_DM_PCI
- pci_hose_write_config_byte(hose, dev, PCI_PRIMARY_BUS, PCI_BUS(dev));
- pci_hose_write_config_byte(hose, dev, PCI_SECONDARY_BUS, sub_bus);
-#else
pci_hose_write_config_byte(hose, dev, PCI_PRIMARY_BUS,
PCI_BUS(dev) - hose->first_busno);
pci_hose_write_config_byte(hose, dev, PCI_SECONDARY_BUS,
sub_bus - hose->first_busno);
-#endif
pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, 0xff);
if (pci_mem) {
struct pci_region *pci_prefetch;
struct pci_region *pci_io;
-#ifdef CONFIG_DM_PCI
- /* The root controller has the region information */
- struct pci_controller *ctlr_hose = pci_bus_to_hose(0);
-
- pci_mem = ctlr_hose->pci_mem;
- pci_prefetch = ctlr_hose->pci_prefetch;
- pci_io = ctlr_hose->pci_io;
-#else
pci_mem = hose->pci_mem;
pci_prefetch = hose->pci_prefetch;
pci_io = hose->pci_io;
-#endif
/* Configure bus number registers */
-#ifdef CONFIG_DM_PCI
- pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS, sub_bus);
-#else
pci_hose_write_config_byte(hose, dev, PCI_SUBORDINATE_BUS,
sub_bus - hose->first_busno);
-#endif
if (pci_mem) {
/* Round memory allocator to 1MB boundary */
}
}
-/*
- *
- */
-
-void pciauto_config_init(struct pci_controller *hose)
-{
- int i;
-
- hose->pci_io = hose->pci_mem = hose->pci_prefetch = NULL;
-
- for (i = 0; i < hose->region_count; i++) {
- switch(hose->regions[i].flags) {
- case PCI_REGION_IO:
- if (!hose->pci_io ||
- hose->pci_io->size < hose->regions[i].size)
- hose->pci_io = hose->regions + i;
- break;
- case PCI_REGION_MEM:
- if (!hose->pci_mem ||
- hose->pci_mem->size < hose->regions[i].size)
- hose->pci_mem = hose->regions + i;
- break;
- case (PCI_REGION_MEM | PCI_REGION_PREFETCH):
- if (!hose->pci_prefetch ||
- hose->pci_prefetch->size < hose->regions[i].size)
- hose->pci_prefetch = hose->regions + i;
- break;
- }
- }
-
-
- if (hose->pci_mem) {
- pciauto_region_init(hose->pci_mem);
-
- debug("PCI Autoconfig: Bus Memory region: [0x%llx-0x%llx],\n"
- "\t\tPhysical Memory [%llx-%llxx]\n",
- (u64)hose->pci_mem->bus_start,
- (u64)(hose->pci_mem->bus_start + hose->pci_mem->size - 1),
- (u64)hose->pci_mem->phys_start,
- (u64)(hose->pci_mem->phys_start + hose->pci_mem->size - 1));
- }
-
- if (hose->pci_prefetch) {
- pciauto_region_init(hose->pci_prefetch);
-
- debug("PCI Autoconfig: Bus Prefetchable Mem: [0x%llx-0x%llx],\n"
- "\t\tPhysical Memory [%llx-%llx]\n",
- (u64)hose->pci_prefetch->bus_start,
- (u64)(hose->pci_prefetch->bus_start +
- hose->pci_prefetch->size - 1),
- (u64)hose->pci_prefetch->phys_start,
- (u64)(hose->pci_prefetch->phys_start +
- hose->pci_prefetch->size - 1));
- }
-
- if (hose->pci_io) {
- pciauto_region_init(hose->pci_io);
-
- debug("PCI Autoconfig: Bus I/O region: [0x%llx-0x%llx],\n"
- "\t\tPhysical Memory: [%llx-%llx]\n",
- (u64)hose->pci_io->bus_start,
- (u64)(hose->pci_io->bus_start + hose->pci_io->size - 1),
- (u64)hose->pci_io->phys_start,
- (u64)(hose->pci_io->phys_start + hose->pci_io->size - 1));
-
- }
-}
/*
* HJF: Changed this to return int. I think this is required
unsigned short class;
int n;
-#ifdef CONFIG_DM_PCI
- /* The root controller has the region information */
- struct pci_controller *ctlr_hose = pci_bus_to_hose(0);
-
- pci_mem = ctlr_hose->pci_mem;
- pci_prefetch = ctlr_hose->pci_prefetch;
- pci_io = ctlr_hose->pci_io;
-#else
pci_mem = hose->pci_mem;
pci_prefetch = hose->pci_prefetch;
pci_io = hose->pci_io;
-#endif
pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
pciauto_setup_device(hose, dev, 2, pci_mem,
pci_prefetch, pci_io);
-#ifdef CONFIG_DM_PCI
- n = dm_pci_hose_probe_bus(hose, dev);
- if (n < 0)
- return n;
- sub_bus = (unsigned int)n;
-#else
/* Passing in current_busno allows for sibling P2P bridges */
hose->current_busno++;
pciauto_prescan_setup_bridge(hose, dev, hose->current_busno);
pciauto_postscan_setup_bridge(hose, dev, sub_bus);
sub_bus = hose->current_busno;
-#endif
break;
case PCI_CLASS_BRIDGE_CARDBUS:
debug("PCI Autoconfig: Found P2CardBus bridge, device %d\n",
PCI_DEV(dev));
-#ifndef CONFIG_DM_PCI
hose->current_busno++;
-#endif
break;
#if defined(CONFIG_PCIAUTO_SKIP_HOST_BRIDGE)
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