diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/amba/bus.h | 36 | ||||
| -rw-r--r-- | include/linux/sh_intc.h | 17 |
2 files changed, 53 insertions, 0 deletions
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h index 724c69c40bb..a9fab831caf 100644 --- a/include/linux/amba/bus.h +++ b/include/linux/amba/bus.h @@ -60,6 +60,9 @@ extern struct bus_type amba_bustype; int amba_driver_register(struct amba_driver *); void amba_driver_unregister(struct amba_driver *); +struct amba_device *amba_device_alloc(const char *, resource_size_t, size_t); +void amba_device_put(struct amba_device *); +int amba_device_add(struct amba_device *, struct resource *); int amba_device_register(struct amba_device *, struct resource *); void amba_device_unregister(struct amba_device *); struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int); @@ -89,4 +92,37 @@ void amba_release_regions(struct amba_device *); #define amba_manf(d) AMBA_MANF_BITS((d)->periphid) #define amba_part(d) AMBA_PART_BITS((d)->periphid) +#define __AMBA_DEV(busid, data, mask) \ + { \ + .coherent_dma_mask = mask, \ + .init_name = busid, \ + .platform_data = data, \ + } + +/* + * APB devices do not themselves have the ability to address memory, + * so DMA masks should be zero (much like USB peripheral devices.) + * The DMA controller DMA masks should be used instead (much like + * USB host controllers in conventional PCs.) + */ +#define AMBA_APB_DEVICE(name, busid, id, base, irqs, data) \ +struct amba_device name##_device = { \ + .dev = __AMBA_DEV(busid, data, 0), \ + .res = DEFINE_RES_MEM(base, SZ_4K), \ + .irq = irqs, \ + .periphid = id, \ +} + +/* + * AHB devices are DMA capable, so set their DMA masks + */ +#define AMBA_AHB_DEVICE(name, busid, id, base, irqs, data) \ +struct amba_device name##_device = { \ + .dev = __AMBA_DEV(busid, data, ~0ULL), \ + .res = DEFINE_RES_MEM(base, SZ_4K), \ + .dma_mask = ~0ULL, \ + .irq = irqs, \ + .periphid = id, \ +} + #endif diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h index b160645f559..6aed0805927 100644 --- a/include/linux/sh_intc.h +++ b/include/linux/sh_intc.h @@ -3,6 +3,23 @@ #include <linux/ioport.h> +#ifdef CONFIG_SUPERH +#define INTC_NR_IRQS 512 +#else +#define INTC_NR_IRQS 1024 +#endif + +/* + * Convert back and forth between INTEVT and IRQ values. + */ +#ifdef CONFIG_CPU_HAS_INTEVT +#define evt2irq(evt) (((evt) >> 5) - 16) +#define irq2evt(irq) (((irq) + 16) << 5) +#else +#define evt2irq(evt) (evt) +#define irq2evt(irq) (irq) +#endif + typedef unsigned char intc_enum; struct intc_vect { |