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dm: core: Add dev_get_addr_size_index() to retrieve addr and size

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The currently available functions accessing the 'reg' property of a
device only retrieve the address. Sometimes its also necessary to
retrieve the size described by the 'reg' property. This patch adds
the new function dev_get_addr_size_index() which retrieves both,
the address and the size described by the 'reg' property.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stefan Roese
2016-11-30 07:24:47 +01:00
committed by Simon Glass
parent 63c0941726
commit 13f3fcac53
2 changed files with 38 additions and 0 deletions
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include/dm/device.h
+16
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@@ -496,6 +496,22 @@ void *dev_map_physmem(struct udevice *dev, unsigned long size);
*/
fdt_addr_t dev_get_addr_index(struct udevice *dev, int index);
/**
* dev_get_addr_size_index() - Get the indexed reg property of a device
*
* Returns the address and size specified in the 'reg' property of a device.
*
* @dev: Pointer to a device
* @index: the 'reg' property can hold a list of <addr, size> pairs
* and @index is used to select which one is required
* @size: Pointer to size varible - this function returns the size
* specified in the 'reg' property here
*
* @return addr
*/
fdt_addr_t dev_get_addr_size_index(struct udevice *dev, int index,
fdt_size_t *size);
/**
* dev_get_addr_name() - Get the reg property of a device, indexed by name
*