diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/cell/setup.c | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index d704bc19a64..b39753f16d4 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -30,6 +30,7 @@ #include <linux/console.h> #include <linux/mutex.h> #include <linux/memory_hotplug.h> +#include <linux/notifier.h> #include <asm/mmu.h> #include <asm/processor.h> @@ -82,10 +83,41 @@ static void cell_progress(char *s, unsigned short hex) printk("*** %04x : %s\n", hex, s ? s : ""); } +static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action, + void *data) +{ + struct device *dev = data; + + if (action != BUS_NOTIFY_ADD_DEVICE) + return 0; + + /* For now, we just use the PCI DMA ops for everything, though + * we'll need something better when we have a real iommu + * implementation. + */ + dev->archdata.dma_ops = pci_dma_ops; + + return 0; +} + +static struct notifier_block cell_of_bus_notifier = { + .notifier_call = cell_of_bus_notify +}; + + static int __init cell_publish_devices(void) { - if (machine_is(cell)) - of_platform_bus_probe(NULL, NULL, NULL); + if (!machine_is(cell)) + return 0; + + /* Register callbacks on OF platform device addition/removal + * to handle linking them to the right DMA operations + */ + bus_register_notifier(&of_platform_bus_type, &cell_of_bus_notifier); + + /* Publish OF platform devices for southbridge IOs */ + of_platform_bus_probe(NULL, NULL, NULL); + return 0; } device_initcall(cell_publish_devices); @@ -154,7 +186,6 @@ static void __init cell_setup_arch(void) #ifdef CONFIG_SMP smp_init_cell(); #endif - /* init to some ~sane value until calibrate_delay() runs */ loops_per_jiffy = 50000000; |