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path: root/drivers/pci/pci_auto.c
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Diffstat (limited to 'drivers/pci/pci_auto.c')
-rw-r--r--drivers/pci/pci_auto.c104
1 files changed, 41 insertions, 63 deletions
diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c
index b37dd994e5..da76148c58 100644
--- a/drivers/pci/pci_auto.c
+++ b/drivers/pci/pci_auto.c
@@ -18,10 +18,10 @@
#define CONFIG_SYS_PCI_CACHE_LINE_SIZE 8
#endif
-void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
- struct pci_region *mem,
- struct pci_region *prefetch, struct pci_region *io,
- bool enum_only)
+static void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
+ struct pci_region *mem,
+ struct pci_region *prefetch,
+ struct pci_region *io)
{
u32 bar_response;
pci_size_t bar_size;
@@ -43,8 +43,7 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
int ret = 0;
/* Tickle the BAR and get the response */
- if (!enum_only)
- dm_pci_write_config32(dev, bar, 0xffffffff);
+ dm_pci_write_config32(dev, bar, 0xffffffff);
dm_pci_read_config32(dev, bar, &bar_response);
/* If BAR is not implemented (or invalid) go to the next BAR */
@@ -58,8 +57,7 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
bar_size = bar_response & PCI_BASE_ADDRESS_IO_MASK;
bar_size &= ~(bar_size - 1);
- if (!enum_only)
- bar_res = io;
+ bar_res = io;
debug("PCI Autoconfig: BAR %d, I/O, size=0x%llx, ",
bar_nr, (unsigned long long)bar_size);
@@ -69,10 +67,7 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
u32 bar_response_upper;
u64 bar64;
- if (!enum_only) {
- dm_pci_write_config32(dev, bar + 4,
- 0xffffffff);
- }
+ dm_pci_write_config32(dev, bar + 4, 0xffffffff);
dm_pci_read_config32(dev, bar + 4,
&bar_response_upper);
@@ -81,33 +76,29 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
bar_size = ~(bar64 & PCI_BASE_ADDRESS_MEM_MASK)
+ 1;
- if (!enum_only)
- found_mem64 = 1;
+ found_mem64 = 1;
} else {
bar_size = (u32)(~(bar_response &
PCI_BASE_ADDRESS_MEM_MASK) + 1);
}
- if (!enum_only) {
- if (prefetch && (bar_response &
- PCI_BASE_ADDRESS_MEM_PREFETCH)) {
- bar_res = prefetch;
- } else {
- bar_res = mem;
- }
- }
+
+ if (prefetch &&
+ (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH))
+ bar_res = prefetch;
+ else
+ bar_res = mem;
debug("PCI Autoconfig: BAR %d, %s, size=0x%llx, ",
bar_nr, bar_res == prefetch ? "Prf" : "Mem",
(unsigned long long)bar_size);
}
- if (!enum_only) {
- ret = pciauto_region_allocate(bar_res, bar_size,
- &bar_value, found_mem64);
- if (ret)
- printf("PCI: Failed autoconfig bar %x\n", bar);
- }
- if (!enum_only && !ret) {
+ ret = pciauto_region_allocate(bar_res, bar_size,
+ &bar_value, found_mem64);
+ if (ret)
+ printf("PCI: Failed autoconfig bar %x\n", bar);
+
+ if (!ret) {
/* Write it out and update our limit */
dm_pci_write_config32(dev, bar, (u32)bar_value);
@@ -135,28 +126,24 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,
bar_nr++;
}
- if (!enum_only) {
- /* Configure the expansion ROM address */
- dm_pci_read_config8(dev, PCI_HEADER_TYPE, &header_type);
- header_type &= 0x7f;
- if (header_type != PCI_HEADER_TYPE_CARDBUS) {
- rom_addr = (header_type == PCI_HEADER_TYPE_NORMAL) ?
- PCI_ROM_ADDRESS : PCI_ROM_ADDRESS1;
- dm_pci_write_config32(dev, rom_addr, 0xfffffffe);
- dm_pci_read_config32(dev, rom_addr, &bar_response);
- if (bar_response) {
- bar_size = -(bar_response & ~1);
- debug("PCI Autoconfig: ROM, size=%#x, ",
- (unsigned int)bar_size);
- if (pciauto_region_allocate(mem, bar_size,
- &bar_value,
- false) == 0) {
- dm_pci_write_config32(dev, rom_addr,
- bar_value);
- }
- cmdstat |= PCI_COMMAND_MEMORY;
- debug("\n");
+ /* Configure the expansion ROM address */
+ dm_pci_read_config8(dev, PCI_HEADER_TYPE, &header_type);
+ header_type &= 0x7f;
+ if (header_type != PCI_HEADER_TYPE_CARDBUS) {
+ rom_addr = (header_type == PCI_HEADER_TYPE_NORMAL) ?
+ PCI_ROM_ADDRESS : PCI_ROM_ADDRESS1;
+ dm_pci_write_config32(dev, rom_addr, 0xfffffffe);
+ dm_pci_read_config32(dev, rom_addr, &bar_response);
+ if (bar_response) {
+ bar_size = -(bar_response & ~1);
+ debug("PCI Autoconfig: ROM, size=%#x, ",
+ (unsigned int)bar_size);
+ if (pciauto_region_allocate(mem, bar_size, &bar_value,
+ false) == 0) {
+ dm_pci_write_config32(dev, rom_addr, bar_value);
}
+ cmdstat |= PCI_COMMAND_MEMORY;
+ debug("\n");
}
}
@@ -319,15 +306,10 @@ int dm_pciauto_config_device(struct udevice *dev)
struct pci_region *pci_io;
unsigned int sub_bus = PCI_BUS(dm_pci_get_bdf(dev));
unsigned short class;
- bool enum_only = false;
struct udevice *ctlr = pci_get_controller(dev);
struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr);
int ret;
-#ifdef CONFIG_PCI_ENUM_ONLY
- enum_only = true;
-#endif
-
pci_mem = ctlr_hose->pci_mem;
pci_prefetch = ctlr_hose->pci_prefetch;
pci_io = ctlr_hose->pci_io;
@@ -339,8 +321,7 @@ int dm_pciauto_config_device(struct udevice *dev)
debug("PCI Autoconfig: Found P2P bridge, device %d\n",
PCI_DEV(dm_pci_get_bdf(dev)));
- dm_pciauto_setup_device(dev, 2, pci_mem, pci_prefetch, pci_io,
- enum_only);
+ dm_pciauto_setup_device(dev, 2, pci_mem, pci_prefetch, pci_io);
ret = dm_pci_hose_probe_bus(dev);
if (ret < 0)
@@ -353,8 +334,7 @@ int dm_pciauto_config_device(struct udevice *dev)
* just do a minimal setup of the bridge,
* let the OS take care of the rest
*/
- dm_pciauto_setup_device(dev, 0, pci_mem, pci_prefetch, pci_io,
- enum_only);
+ dm_pciauto_setup_device(dev, 0, pci_mem, pci_prefetch, pci_io);
debug("PCI Autoconfig: Found P2CardBus bridge, device %d\n",
PCI_DEV(dm_pci_get_bdf(dev)));
@@ -378,8 +358,7 @@ int dm_pciauto_config_device(struct udevice *dev)
*/
debug("PCI Autoconfig: Broken bridge found, only minimal config\n");
dm_pciauto_setup_device(dev, 0, hose->pci_mem,
- hose->pci_prefetch, hose->pci_io,
- enum_only);
+ hose->pci_prefetch, hose->pci_io);
break;
#endif
@@ -388,8 +367,7 @@ int dm_pciauto_config_device(struct udevice *dev)
/* fall through */
default:
- dm_pciauto_setup_device(dev, 6, pci_mem, pci_prefetch, pci_io,
- enum_only);
+ dm_pciauto_setup_device(dev, 6, pci_mem, pci_prefetch, pci_io);
break;
}
generated by cgit (git 2.34.1) at 2024-05-20 20:34:16 +0000