diff options
| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2008-03-04 21:56:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-21 08:47:06 +0400 |
| commit | c9e9e0bfc52ae93c246149c3b9d3a1e11677ca1a (patch) | |
| tree | 77167d1e6dc8cd9659539f6130c219a9eed23aa7 /arch | |
| parent | e789920d0497bb3d7eb146382b9ca8137662fabb (diff) | |
| download | linux-c9e9e0bfc52ae93c246149c3b9d3a1e11677ca1a.tar.xz | |
PCI: parisc: use generic pci_enable_resources()
Use the generic pci_enable_resources() instead of the arch-specific code.
Unlike this arch-specific code, the generic version:
- checks PCI_NUM_RESOURCES (11), not DEVICE_COUNT_RESOURCE (12), resources
- skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
- skips ROM resources unless IORESOURCE_ROM_ENABLE is set
- checks for resource collisions with "!r->parent"
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/kernel/pci.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c index 507d0ac99f66..6936386c9861 100644 --- a/arch/parisc/kernel/pci.c +++ b/arch/parisc/kernel/pci.c @@ -287,23 +287,15 @@ void pcibios_align_resource(void *data, struct resource *res, */ int pcibios_enable_device(struct pci_dev *dev, int mask) { - u16 cmd; - int idx; + int err; + u16 cmd, old_cmd; - pci_read_config_word(dev, PCI_COMMAND, &cmd); - - for (idx = 0; idx < DEVICE_COUNT_RESOURCE; idx++) { - struct resource *r = &dev->resource[idx]; + err = pci_enable_resources(dev, mask); + if (err < 0) + return err; - /* only setup requested resources */ - if (!(mask & (1<<idx))) - continue; - - if (r->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } + pci_read_config_word(dev, PCI_COMMAND, &cmd); + old_cmd = cmd; cmd |= (PCI_COMMAND_SERR | PCI_COMMAND_PARITY); @@ -312,8 +304,12 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) if (dev->bus->bridge_ctl & PCI_BRIDGE_CTL_FAST_BACK) cmd |= PCI_COMMAND_FAST_BACK; #endif - DBGC("PCIBIOS: Enabling device %s cmd 0x%04x\n", pci_name(dev), cmd); - pci_write_config_word(dev, PCI_COMMAND, cmd); + + if (cmd != old_cmd) { + dev_info(&dev->dev, "enabling SERR and PARITY (%04x -> %04x)\n", + old_cmd, cmd); + pci_write_config_word(dev, PCI_COMMAND, cmd); + } return 0; } |