Commit e789920d authored by Bjorn Helgaas's avatar Bjorn Helgaas Committed by Greg Kroah-Hartman

PCI: ppc: 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 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", not IORESOURCE_UNSET
Signed-off-by: default avatarBjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 7cfb5f9a
...@@ -578,39 +578,6 @@ pcibios_assign_resources(void) ...@@ -578,39 +578,6 @@ pcibios_assign_resources(void)
} }
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->flags & IORESOURCE_UNSET) {
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) {
printk("PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
}
static int next_controller_index; static int next_controller_index;
struct pci_controller * __init struct pci_controller * __init
...@@ -785,33 +752,11 @@ pcibios_update_irq(struct pci_dev *dev, int irq) ...@@ -785,33 +752,11 @@ pcibios_update_irq(struct pci_dev *dev, int irq)
int pcibios_enable_device(struct pci_dev *dev, int mask) int pcibios_enable_device(struct pci_dev *dev, int mask)
{ {
u16 cmd, old_cmd;
int idx;
struct resource *r;
if (ppc_md.pcibios_enable_device_hook) if (ppc_md.pcibios_enable_device_hook)
if (ppc_md.pcibios_enable_device_hook(dev, 0)) if (ppc_md.pcibios_enable_device_hook(dev, 0))
return -EINVAL; return -EINVAL;
pci_read_config_word(dev, PCI_COMMAND, &cmd); return pci_enable_resources(dev, mask);
old_cmd = cmd;
for (idx=0; idx<6; idx++) {
r = &dev->resource[idx];
if (r->flags & IORESOURCE_UNSET) {
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 (cmd != old_cmd) {
printk("PCI: Enabling device %s (%04x -> %04x)\n",
pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
} }
struct pci_controller* struct pci_controller*
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment