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>
diff --git a/drivers/core/fdtaddr.c b/drivers/core/fdtaddr.c
index 6dfda20..c3a50a2 100644
--- a/drivers/core/fdtaddr.c
+++ b/drivers/core/fdtaddr.c
@@ -93,6 +93,13 @@
#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 @@
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 a4fda58..d2c1994 100644
--- a/include/dm/fdtaddr.h
+++ b/include/dm/fdtaddr.h
@@ -93,6 +93,18 @@
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.