[net-next,09/10] ARM: dts: k2l-netcp: add cpts refclk_mux node

Message ID 20190601104534.25790-10-grygorii.strashko@ti.com
State New
Headers show
Series
  • Untitled series #20759
Related show

Commit Message

Grygorii Strashko June 1, 2019, 10:45 a.m.
KeyStone 66AK2L 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/66ak2l06
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

---
 arch/arm/boot/dts/keystone-k2l-netcp.dtsi | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

-- 
2.17.1

Patch

diff --git a/arch/arm/boot/dts/keystone-k2l-netcp.dtsi b/arch/arm/boot/dts/keystone-k2l-netcp.dtsi
index a2e47bad3307..c1f982604145 100644
--- a/arch/arm/boot/dts/keystone-k2l-netcp.dtsi
+++ b/arch/arm/boot/dts/keystone-k2l-netcp.dtsi
@@ -134,8 +134,8 @@  netcp: netcp@26000000 {
 	/* NetCP address range */
 	ranges = <0 0x26000000 0x1000000>;
 
-	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 0>,
@@ -155,6 +155,22 @@  netcp: netcp@26000000 {
 			tx-queue = <896>;
 			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>;