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dm: core: Add a new API devfdt_get_addr_index_ptr()

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At present there is only devfdt_get_addr_ptr() which only returns
the first <addr, size> pair in the 'reg' property. Add a new API
devfdt_get_addr_index_ptr() to return the indexed pointer.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This commit is contained in:
Bin Meng 2021-09-12 11:15:12 +08:00 committed by Leo Yu-Chi Liang
parent 7e22c85918
commit fb9bec8e8a
2 changed files with 20 additions and 3 deletions
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11
drivers/core/fdtaddr.c
View File

@ -93,6 +93,13 @@ fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index)
#endif
}
void *devfdt_get_addr_index_ptr(const struct udevice *dev, int index)
{
fdt_addr_t addr = devfdt_get_addr_index(dev, index);
return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)(uintptr_t)addr;
}
fdt_addr_t devfdt_get_addr_size_index(const struct udevice *dev, int index,
fdt_size_t *size)
{
@ -155,9 +162,7 @@ fdt_addr_t devfdt_get_addr(const struct udevice *dev)
void *devfdt_get_addr_ptr(const struct udevice *dev)
{
fdt_addr_t addr = devfdt_get_addr_index(dev, 0);
return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)(uintptr_t)addr;
return devfdt_get_addr_index_ptr(dev, 0);
}
void *devfdt_remap_addr_index(const struct udevice *dev, int index)

12
include/dm/fdtaddr.h
View File

@ -92,6 +92,18 @@ void *devfdt_map_physmem(const struct udevice *dev, unsigned long size);
*/
fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index);
/**
* devfdt_get_addr_index_ptr() - Return indexed pointer to the address of 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
*
* @return Pointer to addr, or NULL if there is no such property
*/
void *devfdt_get_addr_index_ptr(const struct udevice *dev, int index);
/**
* devfdt_get_addr_size_index() - Get the indexed reg property of a device
*