diff options
Diffstat (limited to 'arch/powerpc/kernel/io-workarounds.c')
| -rw-r--r-- | arch/powerpc/kernel/io-workarounds.c | 27 |
1 files changed, 15 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/io-workarounds.c b/arch/powerpc/kernel/io-workarounds.c index 7e5845798788..d36515eaa314 100644 --- a/arch/powerpc/kernel/io-workarounds.c +++ b/arch/powerpc/kernel/io-workarounds.c @@ -144,7 +144,19 @@ static void __iomem *iowa_ioremap(phys_addr_t addr, unsigned long size, return res; } -/* Regist new bus to support workaround */ +/* Enable IO workaround */ +static void __devinit io_workaround_init(void) +{ + static int io_workaround_inited; + + if (io_workaround_inited) + return; + ppc_pci_io = iowa_pci_io; + ppc_md.ioremap = iowa_ioremap; + io_workaround_inited = 1; +} + +/* Register new bus to support workaround */ void __devinit iowa_register_bus(struct pci_controller *phb, struct ppc_pci_io *ops, int (*initfunc)(struct iowa_bus *, void *), void *data) @@ -152,6 +164,8 @@ void __devinit iowa_register_bus(struct pci_controller *phb, struct iowa_bus *bus; struct device_node *np = phb->dn; + io_workaround_init(); + if (iowa_bus_count >= IOWA_MAX_BUS) { pr_err("IOWA:Too many pci bridges, " "workarounds disabled for %s\n", np->full_name); @@ -171,14 +185,3 @@ void __devinit iowa_register_bus(struct pci_controller *phb, pr_debug("IOWA:[%d]Add bus, %s.\n", iowa_bus_count-1, np->full_name); } -/* enable IO workaround */ -void __devinit io_workaround_init(void) -{ - static int io_workaround_inited; - - if (io_workaround_inited) - return; - ppc_pci_io = iowa_pci_io; - ppc_md.ioremap = iowa_ioremap; - io_workaround_inited = 1; -} |