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ARM: dts: k2hk-netcp: add cpts refclk_mux node

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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>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
This commit is contained in:
Grygorii Strashko 2019-10-07 10:59:09 -07:00 committed by Santosh Shilimkar
parent debc91ab8f
commit 8cb7888d64
1 changed files with 18 additions and 2 deletions
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20
arch/arm/boot/dts/keystone-k2hk-netcp.dtsi
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@ -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 @@ gbe@90000 { /* ETHSS */
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>;