diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2021-09-12 06:15:12 +0300 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2021-10-20 05:59:09 +0300 |
| commit | fb9bec8e8a7378d921478d5fbcc941e0fa80c01e (patch) | |
| tree | 5876e80d9ab8107d72821e93e57df8d7495310ac | |
| parent | 7e22c85918e68e6df50d01d08585f88fbbaf3456 (diff) | |
| download | u-boot-fb9bec8e8a7378d921478d5fbcc941e0fa80c01e.tar.xz | |
dm: core: Add a new API devfdt_get_addr_index_ptr()
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>
| -rw-r--r-- | drivers/core/fdtaddr.c | 11 | ||||
| -rw-r--r-- | include/dm/fdtaddr.h | 12 |
2 files changed, 20 insertions, 3 deletions
diff --git a/drivers/core/fdtaddr.c b/drivers/core/fdtaddr.c index 6dfda20772..c3a50a2b0c 100644 --- a/drivers/core/fdtaddr.c +++ b/drivers/core/fdtaddr.c @@ -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) diff --git a/include/dm/fdtaddr.h b/include/dm/fdtaddr.h index a4fda581a7..d2c1994291 100644 --- a/include/dm/fdtaddr.h +++ b/include/dm/fdtaddr.h @@ -93,6 +93,18 @@ 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 * * Returns the address and size specified in the 'reg' property of a device. |