From bjorn.helgaas@hp.com Tue Mar 4 16:12:30 2008 From: Bjorn Helgaas Date: Tue, 04 Mar 2008 11:56:54 -0700 Subject: PCI: mn10300: use generic pci_enable_resources() To: linux-pci@atrey.karlin.mff.cuni.cz To: linux-arch@vger.kernel.org Cc: Russell King Cc: linux-arm-kernel@lists.arm.linux.org.uk Cc: Kyle McMartin Cc: Matthew Wilcox Cc: Grant Grundler Cc: linux-parisc@vger.kernel.org Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Cc: linuxppc-dev@ozlabs.org Cc: Chris Zankel Message-ID: <20080304185821.354198782@ldl.fc.hp.com> 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 6, 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 Acked-by: David Howells Signed-off-by: Greg Kroah-Hartman --- arch/mn10300/unit-asb2305/pci-asb2305.c | 39 -------------------------------- arch/mn10300/unit-asb2305/pci-asb2305.h | 1 arch/mn10300/unit-asb2305/pci.c | 2 - 3 files changed, 1 insertion(+), 41 deletions(-) --- a/arch/mn10300/unit-asb2305/pci-asb2305.c +++ b/arch/mn10300/unit-asb2305/pci-asb2305.c @@ -218,45 +218,6 @@ void __init pcibios_resource_survey(void pcibios_allocate_resources(1); } -int pcibios_enable_resources(struct pci_dev *dev, int mask) -{ - u16 cmd, old_cmd; - int idx; - struct resource *r; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - old_cmd = cmd; - - for (idx = 0; idx < 6; idx++) { - /* Only set up the requested stuff */ - if (!(mask & (1 << idx))) - continue; - - r = &dev->resource[idx]; - - if (!r->start && r->end) { - printk(KERN_ERR - "PCI: Device %s not available because of" - " resource collisions\n", - pci_name(dev)); - return -EINVAL; - } - - if (r->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - - if (dev->resource[PCI_ROM_RESOURCE].start) - cmd |= PCI_COMMAND_MEMORY; - - if (cmd != old_cmd) - pci_write_config_word(dev, PCI_COMMAND, cmd); - - return 0; -} - /* * If we set up a device for bus mastering, we need to check the latency * timer as certain crappy BIOSes forget to set it properly. --- a/arch/mn10300/unit-asb2305/pci-asb2305.h +++ b/arch/mn10300/unit-asb2305/pci-asb2305.h @@ -34,7 +34,6 @@ extern unsigned int pci_probe; extern unsigned int pcibios_max_latency; extern void pcibios_resource_survey(void); -extern int pcibios_enable_resources(struct pci_dev *dev, int mask); /* pci.c */ --- a/arch/mn10300/unit-asb2305/pci.c +++ b/arch/mn10300/unit-asb2305/pci.c @@ -440,7 +440,7 @@ int pcibios_enable_device(struct pci_dev { int err; - err = pcibios_enable_resources(dev, mask); + err = pci_enable_resources(dev, mask); if (err == 0) pcibios_enable_irq(dev); return err;