The SRAM mapping controls on Allwinner SoCs is located in a block called
"System Controls". This block also has registers for identifying the SoC,
reading the state of an external boot-related pin, and on some newer SoCs,
glue layer controls for the EMAC Ethernet controller.
The A64 variant compatible is renamed to "allwinner,a64-system-control"
to reflect this. The old A64 compatible is deprecated. So far we haven't
seen any actual use of it.
Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
Documentation/devicetree/bindings/sram/sunxi-sram.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/sram/sunxi-sram.txt b/Documentation/devicetree/bindings/sram/sunxi-sram.txt
index d087f04a4d7f..9ef40e2e0a48 100644
--- a/Documentation/devicetree/bindings/sram/sunxi-sram.txt
+++ b/Documentation/devicetree/bindings/sram/sunxi-sram.txt
@@ -11,7 +11,8 @@ Controller Node
Required properties:
- compatible : should be:
- "allwinner,sun4i-a10-sram-controller"
- - "allwinner,sun50i-a64-sram-controller"
+ - "allwinner,sun50i-a64-sram-controller" (deprecated)
+ - "allwinner,sun50i-a64-system-control"
- reg : sram controller register offset + length
SRAM nodes
--
2.17.1
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