2021-06-03 14:36:12

by Kishon Vijay Abraham I

[permalink] [raw]
Subject: [PATCH v2 0/4] J721E: Use external clock in EVM for SERDES

J721E EVM has clock generator that feeds both to the SERDES and to the
PCIe slot present in the EVM. In order to use common reference clock on
either side of the link, configure SERDES to use external reference
clock.

Previously SERDES used internal reference clock and the attached device
used clock from clock generator in the EVM.

Changes from v1:
1) Fixed clock names as suggested by Nishanth
2) Limit to < 100 lines

v1: http://lore.kernell.org/r/[email protected]

Kishon Vijay Abraham I (4):
arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES
arm64: dts: ti: k3-j721e-main: Add #clock-cells property to serdes DT
node
arm64: dts: ti: k3-j721e-common-proc-board: Use external clock for
SERDES
arm64: dts: ti: k3-j721e-common-proc-board: Re-name "link" name as
"phy"

.../dts/ti/k3-j721e-common-proc-board.dts | 52 ++++++++++-
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 86 +++++++++++--------
2 files changed, 98 insertions(+), 40 deletions(-)

--
2.17.1


2021-06-03 14:36:36

by Kishon Vijay Abraham I

[permalink] [raw]
Subject: [PATCH v2 2/4] arm64: dts: ti: k3-j721e-main: Add #clock-cells property to serdes DT node

Add #clock-cells property to serdes DT node since the serdes is also now
modeled as a clock provider and include the input clocks "pll0_refclk"
and "pll1_refclk" which are parents to the clocks modeled by serdes.

Signed-off-by: Kishon Vijay Abraham I <[email protected]>
---
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 28 ++++++++++++++++-------
1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 674bfc60f076..c2695ce5e359 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -400,10 +400,13 @@
reg = <0x5000000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
+ #clock-cells = <1>;
resets = <&serdes_wiz0 0>;
reset-names = "sierra_reset";
- clocks = <&wiz0_cmn_refclk_dig_div>, <&wiz0_cmn_refclk1_dig_div>;
- clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div";
+ clocks = <&wiz0_cmn_refclk_dig_div>, <&wiz0_cmn_refclk1_dig_div>,
+ <&wiz0_pll0_refclk>, <&wiz0_pll1_refclk>;
+ clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div",
+ "pll0_refclk", "pll1_refclk";
};
};

@@ -457,10 +460,13 @@
reg = <0x5010000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
+ #clock-cells = <1>;
resets = <&serdes_wiz1 0>;
reset-names = "sierra_reset";
- clocks = <&wiz1_cmn_refclk_dig_div>, <&wiz1_cmn_refclk1_dig_div>;
- clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div";
+ clocks = <&wiz1_cmn_refclk_dig_div>, <&wiz1_cmn_refclk1_dig_div>,
+ <&wiz1_pll0_refclk>, <&wiz1_pll1_refclk>;
+ clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div",
+ "pll0_refclk", "pll1_refclk";
};
};

@@ -514,10 +520,13 @@
reg = <0x5020000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
+ #clock-cells = <1>;
resets = <&serdes_wiz2 0>;
reset-names = "sierra_reset";
- clocks = <&wiz2_cmn_refclk_dig_div>, <&wiz2_cmn_refclk1_dig_div>;
- clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div";
+ clocks = <&wiz2_cmn_refclk_dig_div>, <&wiz2_cmn_refclk1_dig_div>,
+ <&wiz2_pll0_refclk>, <&wiz2_pll1_refclk>;
+ clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div",
+ "pll0_refclk", "pll1_refclk";
};
};

@@ -571,10 +580,13 @@
reg = <0x5030000 0x10000>;
#address-cells = <1>;
#size-cells = <0>;
+ #clock-cells = <1>;
resets = <&serdes_wiz3 0>;
reset-names = "sierra_reset";
- clocks = <&wiz3_cmn_refclk_dig_div>, <&wiz3_cmn_refclk1_dig_div>;
- clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div";
+ clocks = <&wiz3_cmn_refclk_dig_div>, <&wiz3_cmn_refclk1_dig_div>,
+ <&wiz3_pll0_refclk>, <&wiz3_pll1_refclk>;
+ clock-names = "cmn_refclk_dig_div", "cmn_refclk1_dig_div",
+ "pll0_refclk", "pll1_refclk";
};
};

--
2.17.1

2021-06-03 14:36:47

by Kishon Vijay Abraham I

[permalink] [raw]
Subject: [PATCH v2 1/4] arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES

Rename the external refclk inputs to the SERDES from
dummy_cmn_refclk/dummy_cmn_refclk1 to cmn_refclk/cmn_refclk1
respectively. Also move the external refclk DT nodes outside the
cbass_main DT node. Since in j721e common processor board, only the
cmn_refclk1 is connected to 100MHz clock, fix the clock frequency.

Fixes: afd094ebe69f ("arm64: dts: ti: k3-j721e-main: Add WIZ and SERDES PHY nodes")
Signed-off-by: Kishon Vijay Abraham I <[email protected]>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 4 ++
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 58 ++++++++++---------
2 files changed, 34 insertions(+), 28 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 60764366e22b..86f7ab511ee8 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -635,6 +635,10 @@
status = "disabled";
};

+&cmn_refclk1 {
+ clock-frequency = <100000000>;
+};
+
&serdes0 {
serdes0_pcie_link: link@0 {
reg = <0>;
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index c2aa45a3ac79..674bfc60f076 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -8,6 +8,20 @@
#include <dt-bindings/mux/mux.h>
#include <dt-bindings/mux/ti-serdes.h>

+/ {
+ cmn_refclk: clock-cmnrefclk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <0>;
+ };
+
+ cmn_refclk1: clock-cmnrefclk1 {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <0>;
+ };
+};
+
&cbass_main {
msmc_ram: sram@70000000 {
compatible = "mmio-sram";
@@ -336,24 +350,12 @@
pinctrl-single,function-mask = <0xffffffff>;
};

- dummy_cmn_refclk: dummy-cmn-refclk {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <100000000>;
- };
-
- dummy_cmn_refclk1: dummy-cmn-refclk1 {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <100000000>;
- };
-
serdes_wiz0: wiz@5000000 {
compatible = "ti,j721e-wiz-16g";
#address-cells = <1>;
#size-cells = <1>;
power-domains = <&k3_pds 292 TI_SCI_PD_EXCLUSIVE>;
- clocks = <&k3_clks 292 5>, <&k3_clks 292 11>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 292 5>, <&k3_clks 292 11>, <&cmn_refclk>;
clock-names = "fck", "core_ref_clk", "ext_ref_clk";
assigned-clocks = <&k3_clks 292 11>, <&k3_clks 292 0>;
assigned-clock-parents = <&k3_clks 292 15>, <&k3_clks 292 4>;
@@ -362,21 +364,21 @@
ranges = <0x5000000 0x0 0x5000000 0x10000>;

wiz0_pll0_refclk: pll0-refclk {
- clocks = <&k3_clks 292 11>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 292 11>, <&cmn_refclk>;
#clock-cells = <0>;
assigned-clocks = <&wiz0_pll0_refclk>;
assigned-clock-parents = <&k3_clks 292 11>;
};

wiz0_pll1_refclk: pll1-refclk {
- clocks = <&k3_clks 292 0>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 292 0>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz0_pll1_refclk>;
assigned-clock-parents = <&k3_clks 292 0>;
};

wiz0_refclk_dig: refclk-dig {
- clocks = <&k3_clks 292 11>, <&k3_clks 292 0>, <&dummy_cmn_refclk>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 292 11>, <&k3_clks 292 0>, <&cmn_refclk>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz0_refclk_dig>;
assigned-clock-parents = <&k3_clks 292 11>;
@@ -410,7 +412,7 @@
#address-cells = <1>;
#size-cells = <1>;
power-domains = <&k3_pds 293 TI_SCI_PD_EXCLUSIVE>;
- clocks = <&k3_clks 293 5>, <&k3_clks 293 13>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 293 5>, <&k3_clks 293 13>, <&cmn_refclk>;
clock-names = "fck", "core_ref_clk", "ext_ref_clk";
assigned-clocks = <&k3_clks 293 13>, <&k3_clks 293 0>;
assigned-clock-parents = <&k3_clks 293 17>, <&k3_clks 293 4>;
@@ -419,21 +421,21 @@
ranges = <0x5010000 0x0 0x5010000 0x10000>;

wiz1_pll0_refclk: pll0-refclk {
- clocks = <&k3_clks 293 13>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 293 13>, <&cmn_refclk>;
#clock-cells = <0>;
assigned-clocks = <&wiz1_pll0_refclk>;
assigned-clock-parents = <&k3_clks 293 13>;
};

wiz1_pll1_refclk: pll1-refclk {
- clocks = <&k3_clks 293 0>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 293 0>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz1_pll1_refclk>;
assigned-clock-parents = <&k3_clks 293 0>;
};

wiz1_refclk_dig: refclk-dig {
- clocks = <&k3_clks 293 13>, <&k3_clks 293 0>, <&dummy_cmn_refclk>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 293 13>, <&k3_clks 293 0>, <&cmn_refclk>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz1_refclk_dig>;
assigned-clock-parents = <&k3_clks 293 13>;
@@ -467,7 +469,7 @@
#address-cells = <1>;
#size-cells = <1>;
power-domains = <&k3_pds 294 TI_SCI_PD_EXCLUSIVE>;
- clocks = <&k3_clks 294 5>, <&k3_clks 294 11>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 294 5>, <&k3_clks 294 11>, <&cmn_refclk>;
clock-names = "fck", "core_ref_clk", "ext_ref_clk";
assigned-clocks = <&k3_clks 294 11>, <&k3_clks 294 0>;
assigned-clock-parents = <&k3_clks 294 15>, <&k3_clks 294 4>;
@@ -476,21 +478,21 @@
ranges = <0x5020000 0x0 0x5020000 0x10000>;

wiz2_pll0_refclk: pll0-refclk {
- clocks = <&k3_clks 294 11>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 294 11>, <&cmn_refclk>;
#clock-cells = <0>;
assigned-clocks = <&wiz2_pll0_refclk>;
assigned-clock-parents = <&k3_clks 294 11>;
};

wiz2_pll1_refclk: pll1-refclk {
- clocks = <&k3_clks 294 0>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 294 0>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz2_pll1_refclk>;
assigned-clock-parents = <&k3_clks 294 0>;
};

wiz2_refclk_dig: refclk-dig {
- clocks = <&k3_clks 294 11>, <&k3_clks 294 0>, <&dummy_cmn_refclk>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 294 11>, <&k3_clks 294 0>, <&cmn_refclk>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz2_refclk_dig>;
assigned-clock-parents = <&k3_clks 294 11>;
@@ -524,7 +526,7 @@
#address-cells = <1>;
#size-cells = <1>;
power-domains = <&k3_pds 295 TI_SCI_PD_EXCLUSIVE>;
- clocks = <&k3_clks 295 5>, <&k3_clks 295 9>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 295 5>, <&k3_clks 295 9>, <&cmn_refclk>;
clock-names = "fck", "core_ref_clk", "ext_ref_clk";
assigned-clocks = <&k3_clks 295 9>, <&k3_clks 295 0>;
assigned-clock-parents = <&k3_clks 295 13>, <&k3_clks 295 4>;
@@ -533,21 +535,21 @@
ranges = <0x5030000 0x0 0x5030000 0x10000>;

wiz3_pll0_refclk: pll0-refclk {
- clocks = <&k3_clks 295 9>, <&dummy_cmn_refclk>;
+ clocks = <&k3_clks 295 9>, <&cmn_refclk>;
#clock-cells = <0>;
assigned-clocks = <&wiz3_pll0_refclk>;
assigned-clock-parents = <&k3_clks 295 9>;
};

wiz3_pll1_refclk: pll1-refclk {
- clocks = <&k3_clks 295 0>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 295 0>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz3_pll1_refclk>;
assigned-clock-parents = <&k3_clks 295 0>;
};

wiz3_refclk_dig: refclk-dig {
- clocks = <&k3_clks 295 9>, <&k3_clks 295 0>, <&dummy_cmn_refclk>, <&dummy_cmn_refclk1>;
+ clocks = <&k3_clks 295 9>, <&k3_clks 295 0>, <&cmn_refclk>, <&cmn_refclk1>;
#clock-cells = <0>;
assigned-clocks = <&wiz3_refclk_dig>;
assigned-clock-parents = <&k3_clks 295 9>;
--
2.17.1

2021-06-03 14:37:14

by Kishon Vijay Abraham I

[permalink] [raw]
Subject: [PATCH v2 3/4] arm64: dts: ti: k3-j721e-common-proc-board: Use external clock for SERDES

Use external clock for all the SERDES used by PCIe controller. This will
make the same clock used by the local SERDES as well as the clock
provided to the PCIe connector.

Signed-off-by: Kishon Vijay Abraham I <[email protected]>
---
.../dts/ti/k3-j721e-common-proc-board.dts | 40 +++++++++++++++++++
1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 86f7ab511ee8..1b25a5ae9635 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -9,6 +9,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/phy/phy-cadence.h>

/ {
chosen {
@@ -639,7 +640,40 @@
clock-frequency = <100000000>;
};

+&wiz0_pll1_refclk {
+ assigned-clocks = <&wiz0_pll1_refclk>;
+ assigned-clock-parents = <&cmn_refclk1>;
+};
+
+&wiz0_refclk_dig {
+ assigned-clocks = <&wiz0_refclk_dig>;
+ assigned-clock-parents = <&cmn_refclk1>;
+};
+
+&wiz1_pll1_refclk {
+ assigned-clocks = <&wiz1_pll1_refclk>;
+ assigned-clock-parents = <&cmn_refclk1>;
+};
+
+&wiz1_refclk_dig {
+ assigned-clocks = <&wiz1_refclk_dig>;
+ assigned-clock-parents = <&cmn_refclk1>;
+};
+
+&wiz2_pll1_refclk {
+ assigned-clocks = <&wiz2_pll1_refclk>;
+ assigned-clock-parents = <&cmn_refclk1>;
+};
+
+&wiz2_refclk_dig {
+ assigned-clocks = <&wiz2_refclk_dig>;
+ assigned-clock-parents = <&cmn_refclk1>;
+};
+
&serdes0 {
+ assigned-clocks = <&serdes0 CDNS_SIERRA_PLL_CMNLC>;
+ assigned-clock-parents = <&wiz0_pll1_refclk>;
+
serdes0_pcie_link: link@0 {
reg = <0>;
cdns,num-lanes = <1>;
@@ -650,6 +684,9 @@
};

&serdes1 {
+ assigned-clocks = <&serdes1 CDNS_SIERRA_PLL_CMNLC>;
+ assigned-clock-parents = <&wiz1_pll1_refclk>;
+
serdes1_pcie_link: link@0 {
reg = <0>;
cdns,num-lanes = <2>;
@@ -660,6 +697,9 @@
};

&serdes2 {
+ assigned-clocks = <&serdes2 CDNS_SIERRA_PLL_CMNLC>;
+ assigned-clock-parents = <&wiz2_pll1_refclk>;
+
serdes2_pcie_link: link@0 {
reg = <0>;
cdns,num-lanes = <2>;
--
2.17.1

2021-06-03 14:38:22

by Kishon Vijay Abraham I

[permalink] [raw]
Subject: [PATCH v2 4/4] arm64: dts: ti: k3-j721e-common-proc-board: Re-name "link" name as "phy"

Commit 66db854b1f62d ("arm64: dts: ti: k3-j721e-common-proc-board:
Configure the PCIe instances") and
commit 02c35dca2b488 ("arm64: dts: ti: k3-j721e: Enable Super-Speed
support for USB0") added PHY DT nodes with node name as "link"
However nodes with #phy-cells should be named 'phy' as discussed in [1].
Re-name subnodes of serdes in J721E to 'phy'.

[1] -> http://lore.kernel.org/r/20200909203631.GA3026331@bogus
Fixes: 66db854b1f62d ("arm64: dts: ti: k3-j721e-common-proc-board: Configure the PCIe instances")
Fixes: 02c35dca2b488 ("arm64: dts: ti: k3-j721e: Enable Super-Speed support for USB0")
Signed-off-by: Kishon Vijay Abraham I <[email protected]>
---
arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 1b25a5ae9635..ffccbc53f1e7 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -359,7 +359,7 @@
};

&serdes3 {
- serdes3_usb_link: link@0 {
+ serdes3_usb_link: phy@0 {
reg = <0>;
cdns,num-lanes = <2>;
#phy-cells = <0>;
@@ -674,7 +674,7 @@
assigned-clocks = <&serdes0 CDNS_SIERRA_PLL_CMNLC>;
assigned-clock-parents = <&wiz0_pll1_refclk>;

- serdes0_pcie_link: link@0 {
+ serdes0_pcie_link: phy@0 {
reg = <0>;
cdns,num-lanes = <1>;
#phy-cells = <0>;
@@ -687,7 +687,7 @@
assigned-clocks = <&serdes1 CDNS_SIERRA_PLL_CMNLC>;
assigned-clock-parents = <&wiz1_pll1_refclk>;

- serdes1_pcie_link: link@0 {
+ serdes1_pcie_link: phy@0 {
reg = <0>;
cdns,num-lanes = <2>;
#phy-cells = <0>;
@@ -700,7 +700,7 @@
assigned-clocks = <&serdes2 CDNS_SIERRA_PLL_CMNLC>;
assigned-clock-parents = <&wiz2_pll1_refclk>;

- serdes2_pcie_link: link@0 {
+ serdes2_pcie_link: phy@0 {
reg = <0>;
cdns,num-lanes = <2>;
#phy-cells = <0>;
--
2.17.1

2021-06-07 14:40:21

by Aswath Govindraju

[permalink] [raw]
Subject: Re: [PATCH v2 0/4] J721E: Use external clock in EVM for SERDES

On 03/06/21 8:04 pm, Kishon Vijay Abraham I wrote:
> J721E EVM has clock generator that feeds both to the SERDES and to the
> PCIe slot present in the EVM. In order to use common reference clock on
> either side of the link, configure SERDES to use external reference
> clock.
>
> Previously SERDES used internal reference clock and the attached device
> used clock from clock generator in the EVM.
>
> Changes from v1:
> 1) Fixed clock names as suggested by Nishanth
> 2) Limit to < 100 lines
>
> v1: http://lore.kernell.org/r/[email protected]
>

For the whole series,

Reviewed-by: Aswath Govindraju <[email protected]>

Thanks,
Aswath

> Kishon Vijay Abraham I (4):
> arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES
> arm64: dts: ti: k3-j721e-main: Add #clock-cells property to serdes DT
> node
> arm64: dts: ti: k3-j721e-common-proc-board: Use external clock for
> SERDES
> arm64: dts: ti: k3-j721e-common-proc-board: Re-name "link" name as
> "phy"
>
> .../dts/ti/k3-j721e-common-proc-board.dts | 52 ++++++++++-
> arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 86 +++++++++++--------
> 2 files changed, 98 insertions(+), 40 deletions(-)
>

2021-06-09 03:08:06

by Nishanth Menon

[permalink] [raw]
Subject: Re: [PATCH v2 0/4] J721E: Use external clock in EVM for SERDES

On Thu, 3 Jun 2021 20:04:23 +0530, Kishon Vijay Abraham I wrote:
> J721E EVM has clock generator that feeds both to the SERDES and to the
> PCIe slot present in the EVM. In order to use common reference clock on
> either side of the link, configure SERDES to use external reference
> clock.
>
> Previously SERDES used internal reference clock and the attached device
> used clock from clock generator in the EVM.
>
> [...]

Hi Kishon Vijay Abraham I,

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/4] arm64: dts: ti: k3-j721e-main: Fix external refclk input to SERDES
commit: 5c6d0b55b46aeb91355e6a9616decf50a3778c91
[2/4] arm64: dts: ti: k3-j721e-main: Add #clock-cells property to serdes DT node
commit: 2427bfb335eb5f291a821e91c4c520351ce933df
[3/4] arm64: dts: ti: k3-j721e-common-proc-board: Use external clock for SERDES
commit: f2a7657ad7a821de9cc77d071a5587b243144cd5
[4/4] arm64: dts: ti: k3-j721e-common-proc-board: Re-name "link" name as "phy"
commit: 02b4d9186121d842a53e347f53a86ec7f2c6b0c7


All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

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[1] git://git.kernel.org/pub/scm/linux/kernel/git/nmenon/linux.git
--
Regards,
Nishanth Menon
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