summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
diff options
context:
space:
mode:
authorIcenowy Zheng <icenowy@aosc.xyz>2017-04-04 12:50:56 +0300
committerMaxime Ripard <maxime.ripard@free-electrons.com>2017-04-04 18:43:45 +0300
commitd4879bda912107b137e743b67cf063814191cca7 (patch)
tree7fdc39e24c7688eb2ae557bf32af655a3a1bac08 /Documentation/devicetree/bindings/clock/sunxi-ccu.txt
parentb0f0daa8fe9e74b85f6360288d38224ad1c2f2f4 (diff)
downloadlinux-d4879bda912107b137e743b67cf063814191cca7.tar.xz
dt-bindings: update device tree binding for Allwinner PRCM CCUs
Many Allwinner SoCs after A31 have a CCU in PRCM block. Give the ones on H3 and A64 compatible strings. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'Documentation/devicetree/bindings/clock/sunxi-ccu.txt')
-rw-r--r--Documentation/devicetree/bindings/clock/sunxi-ccu.txt17
1 files changed, 16 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
index 68512aa398a9..e9c5a1d9834a 100644
--- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt
@@ -7,9 +7,11 @@ Required properties :
- "allwinner,sun8i-a23-ccu"
- "allwinner,sun8i-a33-ccu"
- "allwinner,sun8i-h3-ccu"
+ - "allwinner,sun8i-h3-r-ccu"
- "allwinner,sun8i-v3s-ccu"
- "allwinner,sun9i-a80-ccu"
- "allwinner,sun50i-a64-ccu"
+ - "allwinner,sun50i-a64-r-ccu"
- "allwinner,sun50i-h5-ccu"
- reg: Must contain the registers base address and length
@@ -20,7 +22,10 @@ Required properties :
- #clock-cells : must contain 1
- #reset-cells : must contain 1
-Example:
+For the PRCM CCUs on H3/A64, one more clock is needed:
+- "iosc": the SoC's internal frequency oscillator
+
+Example for generic CCU:
ccu: clock@01c20000 {
compatible = "allwinner,sun8i-h3-ccu";
reg = <0x01c20000 0x400>;
@@ -29,3 +34,13 @@ ccu: clock@01c20000 {
#clock-cells = <1>;
#reset-cells = <1>;
};
+
+Example for PRCM CCU:
+r_ccu: clock@01f01400 {
+ compatible = "allwinner,sun50i-a64-r-ccu";
+ reg = <0x01f01400 0x100>;
+ clocks = <&osc24M>, <&osc32k>, <&iosc>;
+ clock-names = "hosc", "losc", "iosc";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+};