scripts: kconfig: functions: add dt_chosen_partition_addr_int|hex
dt_chosen_partition_addr_int|hex allow obtaining the absolute address of
a partition, which is the result of the grandparent node address plus
the partition node address.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
diff --git a/scripts/kconfig/kconfigfunctions.py b/scripts/kconfig/kconfigfunctions.py
index 4a74c6f..71200b7 100644
--- a/scripts/kconfig/kconfigfunctions.py
+++ b/scripts/kconfig/kconfigfunctions.py
@@ -336,6 +336,48 @@
return hex(_dt_chosen_reg_addr(kconf, chosen, index, unit))
+def _dt_chosen_partition_addr(kconf, chosen, index=0, unit=None):
+ """
+ This function takes a 'chosen' property and treats that property as a path
+ to an EDT node. If it finds an EDT node, it will look to see if that
+ node has a register, and if that node has a grandparent that has a register
+ at the given 'index'. The addition of both addresses will be returned, if
+ not, we return 0.
+
+ The function will divide the value based on 'unit':
+ None No division
+ 'k' or 'K' divide by 1024 (1 << 10)
+ 'm' or 'M' divide by 1,048,576 (1 << 20)
+ 'g' or 'G' divide by 1,073,741,824 (1 << 30)
+ 'kb' or 'Kb' divide by 8192 (1 << 13)
+ 'mb' or 'Mb' divide by 8,388,608 (1 << 23)
+ 'gb' or 'Gb' divide by 8,589,934,592 (1 << 33)
+ """
+ if doc_mode or edt is None:
+ return 0
+
+ node = edt.chosen_node(chosen)
+ if not node:
+ return 0
+
+ p_node = node.parent
+ if not p_node:
+ return 0
+
+ return _node_reg_addr(p_node.parent, index, unit) + _node_reg_addr(node, 0, unit)
+
+
+def dt_chosen_partition_addr(kconf, name, chosen, index=0, unit=None):
+ """
+ This function just routes to the proper function and converts
+ the result to either a string int or string hex value.
+ """
+ if name == "dt_chosen_partition_addr_int":
+ return str(_dt_chosen_partition_addr(kconf, chosen, index, unit))
+ if name == "dt_chosen_partition_addr_hex":
+ return hex(_dt_chosen_partition_addr(kconf, chosen, index, unit))
+
+
def _dt_node_reg_addr(kconf, path, index=0, unit=None):
"""
This function takes a 'path' and looks for an EDT node at that path. If it
@@ -863,5 +905,7 @@
"dt_node_parent": (dt_node_parent, 1, 1),
"dt_nodelabel_array_prop_has_val": (dt_nodelabel_array_prop_has_val, 3, 3),
"dt_gpio_hogs_enabled": (dt_gpio_hogs_enabled, 0, 0),
+ "dt_chosen_partition_addr_int": (dt_chosen_partition_addr, 1, 3),
+ "dt_chosen_partition_addr_hex": (dt_chosen_partition_addr, 1, 3),
"shields_list_contains": (shields_list_contains, 1, 1),
}
