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Subject[PATCH net-next 08/10] ARM: dts: k2hk-netcp: add cpts refclk_mux node
Date
KeyStone 66AK2H/K 1G Ethernet Switch Subsystems, can control an external
multiplexer that selects one of up to 32 clocks for time sync reference
(RFTCLK) clock. This feature can be configured through CPTS_RFTCLK_SEL
register (offset: x08) in CPTS module and modelled as multiplexer clock.

Hence, add cpts-refclk-mux clock node which allows to mux one of SYSCLK2,
SYSCLK3, TIMI0, TIMI1, TSREFCLK clocks as CPTS reference clock [1] and
group all CPTS properties under "cpts" subnode.

[1] http://www.ti.com/lit/gpn/66ak2h14
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
arch/arm/boot/dts/keystone-k2hk-netcp.dtsi | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/keystone-k2hk-netcp.dtsi b/arch/arm/boot/dts/keystone-k2hk-netcp.dtsi
index e203145acbea..d5a6c1f5633c 100644
--- a/arch/arm/boot/dts/keystone-k2hk-netcp.dtsi
+++ b/arch/arm/boot/dts/keystone-k2hk-netcp.dtsi
@@ -152,8 +152,8 @@ netcp: netcp@2000000 {
/* NetCP address range */
ranges = <0 0x2000000 0x100000>;

- clocks = <&clkpa>, <&clkcpgmac>, <&chipclk12>;
- clock-names = "pa_clk", "ethss_clk", "cpts";
+ clocks = <&clkpa>, <&clkcpgmac>;
+ clock-names = "pa_clk", "ethss_clk";
dma-coherent;

ti,navigator-dmas = <&dma_gbe 22>,
@@ -175,6 +175,22 @@ netcp: netcp@2000000 {
tx-queue = <648>;
tx-channel = "nettx";

+ cpts {
+ clocks = <&cpts_refclk_mux>;
+ clock-names = "cpts";
+
+ cpts_refclk_mux: cpts-refclk-mux {
+ #clock-cells = <0>;
+ clocks = <&chipclk12>, <&chipclk13>,
+ <&timi0>, <&timi1>,
+ <&tsrefclk>;
+ ti,mux-tbl = <0x0>, <0x1>, <0x2>,
+ <0x3>, <0x8>;
+ assigned-clocks = <&cpts_refclk_mux>;
+ assigned-clock-parents = <&chipclk12>;
+ };
+ };
+
interfaces {
gbe0: interface-0 {
slave-port = <0>;
--
2.17.1
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