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| author | Peter Tyser <ptyser@xes-inc.com> | 2010-10-29 17:59:28 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-11-14 23:46:47 +0100 |
| commit | a38d216eeb80663b89c0a3e6c43f28aeaf09b2e7 (patch) | |
| tree | cb51f63c763c68bee25a58e7ea7dc08484153120 | |
| parent | 983eb9d1628a7363f98c8c125522815c429ddf97 (diff) | |
| download | u-boot-imx-a38d216eeb80663b89c0a3e6c43f28aeaf09b2e7.zip u-boot-imx-a38d216eeb80663b89c0a3e6c43f28aeaf09b2e7.tar.gz u-boot-imx-a38d216eeb80663b89c0a3e6c43f28aeaf09b2e7.tar.bz2 | |
pci: Fix ordering of devices when CONFIG_PCI_SCAN_SHOW
Move the printing of PCI device information to before the PCI device is
configured. This prevents the case where recursive scanning results in
the deepest devices being printed first.
This change also makes PCI lockups during enumeration easier to
diagnose since the device that is being configured is printed out prior
to configuration. Previously, it was not possible to determine which
device caused the PCI lockup.
Original example:
PCIE1: connected as Root Complex
04:01.0 - 8086:1010 - Network controller
04:01.1 - 8086:1010 - Network controller
03:00.0 - 10b5:8112 - Bridge device
02:01.0 - 10b5:8518 - Bridge device
02:02.0 - 10b5:8518 - Bridge device
08:00.0 - 1957:0040 - Processor
07:00.0 - 10b5:8518 - Bridge device
09:00.0 - 10b5:8112 - Bridge device
07:01.0 - 10b5:8518 - Bridge device
07:02.0 - 10b5:8518 - Bridge device
06:00.0 - 10b5:8518 - Bridge device
02:03.0 - 10b5:8518 - Bridge device
01:00.0 - 10b5:8518 - Bridge device
PCIE1: Bus 00 - 0b
Updated example:
PCIE1: connected as Root Complex
01:00.0 - 10b5:8518 - Bridge device
02:01.0 - 10b5:8518 - Bridge device
03:00.0 - 10b5:8112 - Bridge device
04:01.0 - 8086:1010 - Network controller
04:01.1 - 8086:1010 - Network controller
02:02.0 - 10b5:8518 - Bridge device
02:03.0 - 10b5:8518 - Bridge device
06:00.0 - 10b5:8518 - Bridge device
07:00.0 - 10b5:8518 - Bridge device
08:00.0 - 1957:0040 - Processor
07:01.0 - 10b5:8518 - Bridge device
09:00.0 - 10b5:8112 - Bridge device
07:02.0 - 10b5:8518 - Bridge device
PCIE1: Bus 00 - 0b
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
| -rw-r--r-- | drivers/pci/pci.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 3dccf88..78f7339 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -645,6 +645,14 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus) pci_hose_read_config_word(hose, dev, PCI_DEVICE_ID, &device); pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class); +#ifdef CONFIG_PCI_SCAN_SHOW + if (pci_print_dev(hose, dev)) { + printf(" %02x:%02x.%x - %04x:%04x - %s\n", + PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev), + vendor, device, pci_class_str(class >> 8)); + } +#endif + cfg = pci_find_config(hose, class, vendor, device, PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev)); if (cfg) { @@ -657,16 +665,9 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus) sub_bus = max(sub_bus, n); #endif } + if (hose->fixup_irq) hose->fixup_irq(hose, dev); - -#ifdef CONFIG_PCI_SCAN_SHOW - if (pci_print_dev(hose, dev)) { - printf(" %02x:%02x.%x - %04x:%04x - %s\n", - PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev), - vendor, device, pci_class_str(class >> 8)); - } -#endif } return sub_bus; |