Convert the xlnx,zynqmp-clk.txt to yaml.
versal-clk.yaml already exists that's why ZynqMP is converted and
merged.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xxxxxxx>
---
Changes in v4:
Do not relax the constraints
Update the constraints to max as 8
Changes in v3:
Update the common constraints
Changes in v2:
add enum in compatible
fix the description
add constraints for clocks
name the clock-controller1 to clock-controller
.../bindings/clock/xlnx,versal-clk.yaml | 80 ++++++++++++++++---
.../bindings/clock/xlnx,zynqmp-clk.txt | 63 ---------------
2 files changed, 71 insertions(+), 72 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
diff --git a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
index e9cf747bf89b..1ed17dfca241 100644
--- a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml
@@ -19,7 +19,9 @@ select: false
properties:
compatible:
oneOf:
- - const: xlnx,versal-clk
+ - enum:
+ - xlnx,versal-clk
+ - xlnx,zynqmp-clk
- items:
- enum:
- xlnx,versal-net-clk
@@ -31,16 +33,12 @@ properties:
clocks:
description: List of clock specifiers which are external input
clocks to the given clock controller.
- items:
- - description: reference clock
- - description: alternate reference clock
- - description: alternate reference clock for programmable logic
+ minItems: 3
+ maxItems: 8
clock-names:
- items:
- - const: ref
- - const: alt_ref
- - const: pl_alt_ref
+ minItems: 3
+ maxItems: 8
required:
- compatible
@@ -50,6 +48,61 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - xlnx,versal-clk
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: reference clock
+ - description: alternate reference clock
+ - description: alternate reference clock for programmable logic
+
+ clock-names:
+ items:
+ - const: ref
+ - const: alt_ref
+ - const: pl_alt_ref
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - xlnx,zynqmp-clk
+
+ then:
+ properties:
+ clocks:
+ minItems: 5
+ items:
+ - description: PS reference clock
+ - description: reference clock for video system
+ - description: alternative PS reference clock
+ - description: auxiliary reference clock
+ - description: transceiver reference clock
+ - description: (E)MIO clock source (Optional clock)
+ - description: GEM emio clock (Optional clock)
+ - description: Watchdog external clock (Optional clock)
+
+ clock-names:
+ minItems: 5
+ items:
+ - const: pss_ref_clk
+ - const: video_clk
+ - const: pss_alt_ref_clk
+ - const: aux_ref_clk
+ - const: gt_crx_ref_clk
+ - pattern: "^mio_clk[00-77]+.*$"
+ - pattern: "gem[0-3]+_emio_clk.*$"
+ - pattern: "swdt[0-1]+_ext_clk.*$"
+
examples:
- |
firmware {
@@ -64,4 +117,13 @@ examples:
};
};
};
+
+ clock-controller {
+ #clock-cells = <1>;
+ compatible = "xlnx,zynqmp-clk";
+ clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>,
+ <&aux_ref_clk>, <>_crx_ref_clk>;
+ clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk",
+ "aux_ref_clk", "gt_crx_ref_clk";
+ };
...
diff --git a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt b/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
deleted file mode 100644
index 391ee1a60bed..000000000000
--- a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt
+++ /dev/null
@@ -1,63 +0,0 @@
---------------------------------------------------------------------------
-Device Tree Clock bindings for the Zynq Ultrascale+ MPSoC controlled using
-Zynq MPSoC firmware interface
---------------------------------------------------------------------------
-The clock controller is a h/w block of Zynq Ultrascale+ MPSoC clock
-tree. It reads required input clock frequencies from the devicetree and acts
-as clock provider for all clock consumers of PS clocks.
-
-See clock_bindings.txt for more information on the generic clock bindings.
-
-Required properties:
- - #clock-cells: Must be 1
- - compatible: Must contain: "xlnx,zynqmp-clk"
- - clocks: List of clock specifiers which are external input
- clocks to the given clock controller. Please refer
- the next section to find the input clocks for a
- given controller.
- - clock-names: List of clock names which are exteral input clocks
- to the given clock controller. Please refer to the
- clock bindings for more details.
-
-Input clocks for zynqmp Ultrascale+ clock controller:
-
-The Zynq UltraScale+ MPSoC has one primary and four alternative reference clock
-inputs. These required clock inputs are:
- - pss_ref_clk (PS reference clock)
- - video_clk (reference clock for video system )
- - pss_alt_ref_clk (alternative PS reference clock)
- - aux_ref_clk
- - gt_crx_ref_clk (transceiver reference clock)
-
-The following strings are optional parameters to the 'clock-names' property in
-order to provide an optional (E)MIO clock source:
- - swdt0_ext_clk
- - swdt1_ext_clk
- - gem0_emio_clk
- - gem1_emio_clk
- - gem2_emio_clk
- - gem3_emio_clk
- - mio_clk_XX # with XX = 00..77
- - mio_clk_50_or_51 #for the mux clock to gem tsu from 50 or 51
-
-
-Output clocks are registered based on clock information received
-from firmware. Output clocks indexes are mentioned in
-include/dt-bindings/clock/xlnx-zynqmp-clk.h.
-
--------
-Example
--------
-
-firmware {
- zynqmp_firmware: zynqmp-firmware {
- compatible = "xlnx,zynqmp-firmware";
- method = "smc";
- zynqmp_clk: clock-controller {
- #clock-cells = <1>;
- compatible = "xlnx,zynqmp-clk";
- clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>, <&aux_ref_clk>, <>_crx_ref_clk>;
- clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk","aux_ref_clk", "gt_crx_ref_clk";
- };
- };
-};
--
2.17.1
