diff options
Diffstat (limited to 'drivers/acpi/reboot.c')
| -rw-r--r-- | drivers/acpi/reboot.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index a6c77e8b37bd..410d0be99a04 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -6,9 +6,7 @@ void acpi_reboot(void) { struct acpi_generic_address *rr; - struct pci_bus *bus0; u8 reset_value; - unsigned int devfn; if (acpi_disabled) return; @@ -31,7 +29,15 @@ void acpi_reboot(void) /* The reset register can only exist in I/O, Memory or PCI config space * on a device on bus 0. */ switch (rr->space_id) { +/* + * There are some rare cases in the ARM world with PCI is not one + * of the buses available to us, even though we use ACPI. + */ +#ifdef CONFIG_PCI case ACPI_ADR_SPACE_PCI_CONFIG: + struct pci_bus *bus0; + unsigned int devfn; + /* The reset register can only live on bus 0. */ bus0 = pci_find_bus(0, 0); if (!bus0) @@ -44,6 +50,7 @@ void acpi_reboot(void) pci_bus_write_config_byte(bus0, devfn, (rr->address & 0xffff), reset_value); break; +#endif case ACPI_ADR_SPACE_SYSTEM_MEMORY: case ACPI_ADR_SPACE_SYSTEM_IO: |