arch: arm: agilex5: Enable power manager for Agilex5

Agilex5 FSBL is required to disable the power of unused peripheral SRAM
blocks to reduce power consumption.

Introducing a new power manager driver for Agilex5 which will be called
as part of Agilex5 SPL initialization process.

This driver will read the peripheral handoff data obtained from the
bitstream and will power off the specified peripheral's SRAM from the
handoff data values.

Signed-off-by: Alif Zakuan Yuslaimi <[email protected]>
Reviewed-by: Tien Fong Chee <[email protected]>

1 files changed, 39 insertions, 0 deletions

diff --git a/doc/device-tree-bindings/power/altr,pmgr-agilex5.yaml b/doc/device-tree-bindings/power/altr,pmgr-agilex5.yaml
new file mode 100644
index 00000000000..af7aeaa922c
--- /dev/null
+++ b/doc/device-tree-bindings/power/altr,pmgr-agilex5.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/power/altr,pmgr-agilex5.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Altera Agilex5 Power Manager
+
+maintainers:
+  - name: Alif Zakuan Yuslaimi
+    email: [email protected]
+
+description: |
+  This controller will read the peripheral handoff data obtained from the
+  bitstream and will power gate the specified peripheral's SRAM from the
+  handoff data values to reduce power consumption.
+
+properties:
+  compatible:
+    const: "altr,pmgr-agilex5"
+
+  reg:
+    maxItems: 1
+
+  bootph-all: true
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    pwrmgr: pwrmgr@10d14000 {
+      compatible = "altr,pmgr-agilex5";
+      reg = <0x10d14000 0x100>;
+      bootph-all;
+    };