diff options
| author | Vignesh R | 2016-07-06 09:58:55 +0530 |
|---|---|---|
| committer | Jagan Teki | 2016-07-09 20:16:08 +0530 |
| commit | 7c616862553e37c89ea5db399961018a7367ca33 (patch) | |
| tree | 9a1a71c35a2e8abc20d882fd0b6358140f32bb2a /include/dm | |
| parent | c8864d720926c6b136aa9aa97fd1d4410250d271 (diff) | |
dm: core: implement dev_map_physmem()
This API helps to map physical register addresss pace of device to
virtual address space easily. Its just a wrapper around map_physmem()
with MAP_NOCACHE flag.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Suggested-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jagan Teki <jteki@openedev.com>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/device.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/dm/device.h b/include/dm/device.h index f03bcd3b49e..1bfcf3bcbc0 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -467,6 +467,19 @@ fdt_addr_t dev_get_addr(struct udevice *dev); void *dev_get_addr_ptr(struct udevice *dev); /** + * dev_map_physmem() - Read device address from reg property of the + * device node and map the address into CPU address + * space. + * + * @dev: Pointer to device + * @size: size of the memory to map + * + * @return mapped address, or NULL if the device does not have reg + * property. + */ +void *dev_map_physmem(struct udevice *dev, unsigned long size); + +/** * dev_get_addr_index() - Get the indexed reg property of a device * * @dev: Pointer to a device |