Message ID | 20201119174820.7820-7-nsaenzjulienne@suse.de |
---|---|
State | Superseded |
Delegated to: | Matthias Brugger |
Headers | show |
Series | [1/8] rpi: Add identifier for the new RPi400 | expand |
diff --git a/include/phys2bus.h b/include/phys2bus.h index dc9b8e5a25..a380063af4 100644 --- a/include/phys2bus.h +++ b/include/phys2bus.h @@ -21,4 +21,20 @@ static inline unsigned long bus_to_phys(unsigned long bus) } #endif +#if CONFIG_IS_ENABLED(DM) +#include <dm/device.h> + +static inline dma_addr_t dev_phys_to_bus(struct udevice *dev, + phys_addr_t phys) +{ + return phys - dev->dma_offset; +} + +static inline phys_addr_t dev_bus_to_phys(struct udevice *dev, + dma_addr_t bus) +{ + return bus + dev->dma_offset; +} +#endif + #endif
These functions, instead of relying on hard-coded platform-specific address translations, make use of the DMA constraints provided by the DM core. This allows for per-device translations. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> --- include/phys2bus.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)