[PATCH 02/15] dt-bindings: mtd: sunxi: Add new compatible

Richard Genoud
2025-10-10T08:41:46Z

The H616 NAND controller is quite different from the A10 and A23 ones,
some registers offset changed, and some new one are introduced.
Also, the DMA handling is different (it uses chained descriptors)

So, introduce a new compatible to represent this version of the IP.

Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
---
.../mtd/allwinner,sun4i-a10-nand.yaml | 56 ++++++++++++++-----
1 file changed, 43 insertions(+), 13 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
index 054b6b8bf9b9..cc63091fe936 100644
--- a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
@@ -6,34 +6,64 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A10 NAND Controller

-allOf:
- - $ref: nand-controller.yaml
-
maintainers:
- Chen-Yu Tsai <wens@csie.org>
- Maxime Ripard <mripard@kernel.org>

+allOf:
+ - $ref: nand-controller.yaml
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun4i-a10-nand
+ - allwinner,sun8i-a23-nand-controller
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ clock-names:
+ items:
+ - const: ahb
+ - const: mod
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun50i-h616-nand-controller
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ - description: ECC Clock
+ - description: MBus Clock
+ clock-names:
+ items:
+ - const: ahb
+ - const: mod
+ - const: ecc
+ - const: mbus
+
properties:
compatible:
enum:
- allwinner,sun4i-a10-nand
- allwinner,sun8i-a23-nand-controller
+ - allwinner,sun50i-h616-nand-controller
reg:
maxItems: 1

interrupts:
maxItems: 1

- clocks:
- items:
- - description: Bus Clock
- - description: Module Clock
-
- clock-names:
- items:
- - const: ahb
- - const: mod
-
resets:
maxItems: 1

--
2.47.3