* [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2
@ 2025-08-19 2:43 Haibo Chen
2025-08-19 15:50 ` Frank Li
2025-08-22 9:19 ` Shawn Guo
0 siblings, 2 replies; 4+ messages in thread
From: Haibo Chen @ 2025-08-19 2:43 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, Peng Fan,
Frank Li
Cc: devicetree, imx, linux-arm-kernel, linux-kernel, Haibo Chen
1, the phy support up to 8Mbit/s databitrate for CAN FD.
refer to product data sheet:
https://www.nxp.com/docs/en/data-sheet/TJA1463.pdf
2, the standby pin of the phy is ACTIVE_LOW.
3, the phy of flexcan2 connect the standby/en pin to PCAL6408 on i2c4 bus.
Fixes: 02b7adb791e1 ("arm64: dts: imx95-19x19-evk: add adc0 flexcan[1,2] i2c[2,3] uart5 spi3 and tpm3")
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index 2f949a0d48d2d8066388884703c3b3cd678f16e1..9d034275c847606919af8ee4a80a00599abf4d8b 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -80,17 +80,17 @@ linux_cma: linux,cma {
flexcan1_phy: can-phy0 {
compatible = "nxp,tjr1443";
#phy-cells = <0>;
- max-bitrate = <1000000>;
+ max-bitrate = <8000000>;
enable-gpios = <&i2c6_pcal6416 6 GPIO_ACTIVE_HIGH>;
- standby-gpios = <&i2c6_pcal6416 5 GPIO_ACTIVE_HIGH>;
+ standby-gpios = <&i2c6_pcal6416 5 GPIO_ACTIVE_LOW>;
};
flexcan2_phy: can-phy1 {
compatible = "nxp,tjr1443";
#phy-cells = <0>;
- max-bitrate = <1000000>;
- enable-gpios = <&i2c6_pcal6416 4 GPIO_ACTIVE_HIGH>;
- standby-gpios = <&i2c6_pcal6416 3 GPIO_ACTIVE_HIGH>;
+ max-bitrate = <8000000>;
+ enable-gpios = <&i2c4_gpio_expander_21 4 GPIO_ACTIVE_HIGH>;
+ standby-gpios = <&i2c4_gpio_expander_21 3 GPIO_ACTIVE_LOW>;
};
reg_vref_1v8: regulator-1p8v {
---
base-commit: 3ac864c2d9bb8608ee236e89bf561811613abfce
change-id: 20250819-can-dts-fix-62ac1d02c007
Best regards,
--
Haibo Chen <haibo.chen@nxp.com>
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2
2025-08-19 2:43 [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2 Haibo Chen
@ 2025-08-19 15:50 ` Frank Li
2025-08-21 15:03 ` Frank Li
2025-08-22 9:19 ` Shawn Guo
1 sibling, 1 reply; 4+ messages in thread
From: Frank Li @ 2025-08-19 15:50 UTC (permalink / raw)
To: Haibo Chen
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, Peng Fan,
devicetree, imx, linux-arm-kernel, linux-kernel
On Tue, Aug 19, 2025 at 10:43:37AM +0800, Haibo Chen wrote:
> 1, the phy support up to 8Mbit/s databitrate for CAN FD.
> refer to product data sheet:
> https://www.nxp.com/docs/en/data-sheet/TJA1463.pdf
> 2, the standby pin of the phy is ACTIVE_LOW.
> 3, the phy of flexcan2 connect the standby/en pin to PCAL6408 on i2c4 bus.
>
> Fixes: 02b7adb791e1 ("arm64: dts: imx95-19x19-evk: add adc0 flexcan[1,2] i2c[2,3] uart5 spi3 and tpm3")
> Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
> ---
> arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> index 2f949a0d48d2d8066388884703c3b3cd678f16e1..9d034275c847606919af8ee4a80a00599abf4d8b 100644
> --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> @@ -80,17 +80,17 @@ linux_cma: linux,cma {
> flexcan1_phy: can-phy0 {
> compatible = "nxp,tjr1443";
> #phy-cells = <0>;
> - max-bitrate = <1000000>;
> + max-bitrate = <8000000>;
> enable-gpios = <&i2c6_pcal6416 6 GPIO_ACTIVE_HIGH>;
> - standby-gpios = <&i2c6_pcal6416 5 GPIO_ACTIVE_HIGH>;
> + standby-gpios = <&i2c6_pcal6416 5 GPIO_ACTIVE_LOW>;
It use go though CAN phy.
Frank
> };
>
> flexcan2_phy: can-phy1 {
> compatible = "nxp,tjr1443";
> #phy-cells = <0>;
> - max-bitrate = <1000000>;
> - enable-gpios = <&i2c6_pcal6416 4 GPIO_ACTIVE_HIGH>;
> - standby-gpios = <&i2c6_pcal6416 3 GPIO_ACTIVE_HIGH>;
> + max-bitrate = <8000000>;
> + enable-gpios = <&i2c4_gpio_expander_21 4 GPIO_ACTIVE_HIGH>;
> + standby-gpios = <&i2c4_gpio_expander_21 3 GPIO_ACTIVE_LOW>;
> };
>
> reg_vref_1v8: regulator-1p8v {
>
> ---
> base-commit: 3ac864c2d9bb8608ee236e89bf561811613abfce
> change-id: 20250819-can-dts-fix-62ac1d02c007
>
> Best regards,
> --
> Haibo Chen <haibo.chen@nxp.com>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2
2025-08-19 15:50 ` Frank Li
@ 2025-08-21 15:03 ` Frank Li
0 siblings, 0 replies; 4+ messages in thread
From: Frank Li @ 2025-08-21 15:03 UTC (permalink / raw)
To: Haibo Chen
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, Peng Fan,
devicetree, imx, linux-arm-kernel, linux-kernel
On Tue, Aug 19, 2025 at 11:50:17AM -0400, Frank Li wrote:
> On Tue, Aug 19, 2025 at 10:43:37AM +0800, Haibo Chen wrote:
> > 1, the phy support up to 8Mbit/s databitrate for CAN FD.
> > refer to product data sheet:
> > https://www.nxp.com/docs/en/data-sheet/TJA1463.pdf
> > 2, the standby pin of the phy is ACTIVE_LOW.
> > 3, the phy of flexcan2 connect the standby/en pin to PCAL6408 on i2c4 bus.
> >
> > Fixes: 02b7adb791e1 ("arm64: dts: imx95-19x19-evk: add adc0 flexcan[1,2] i2c[2,3] uart5 spi3 and tpm3")
> > Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
> > ---
> > arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 10 +++++-----
> > 1 file changed, 5 insertions(+), 5 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> > index 2f949a0d48d2d8066388884703c3b3cd678f16e1..9d034275c847606919af8ee4a80a00599abf4d8b 100644
> > --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> > +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> > @@ -80,17 +80,17 @@ linux_cma: linux,cma {
> > flexcan1_phy: can-phy0 {
> > compatible = "nxp,tjr1443";
> > #phy-cells = <0>;
> > - max-bitrate = <1000000>;
> > + max-bitrate = <8000000>;
> > enable-gpios = <&i2c6_pcal6416 6 GPIO_ACTIVE_HIGH>;
> > - standby-gpios = <&i2c6_pcal6416 5 GPIO_ACTIVE_HIGH>;
> > + standby-gpios = <&i2c6_pcal6416 5 GPIO_ACTIVE_LOW>;
>
> It use go though CAN phy.
Sorry, I mass up. It is correct.
Reviewed-by: Frank Li <Frank.Li@nxp.com>
>
> Frank
> > };
> >
> > flexcan2_phy: can-phy1 {
> > compatible = "nxp,tjr1443";
> > #phy-cells = <0>;
> > - max-bitrate = <1000000>;
> > - enable-gpios = <&i2c6_pcal6416 4 GPIO_ACTIVE_HIGH>;
> > - standby-gpios = <&i2c6_pcal6416 3 GPIO_ACTIVE_HIGH>;
> > + max-bitrate = <8000000>;
> > + enable-gpios = <&i2c4_gpio_expander_21 4 GPIO_ACTIVE_HIGH>;
> > + standby-gpios = <&i2c4_gpio_expander_21 3 GPIO_ACTIVE_LOW>;
> > };
> >
> > reg_vref_1v8: regulator-1p8v {
> >
> > ---
> > base-commit: 3ac864c2d9bb8608ee236e89bf561811613abfce
> > change-id: 20250819-can-dts-fix-62ac1d02c007
> >
> > Best regards,
> > --
> > Haibo Chen <haibo.chen@nxp.com>
> >
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2
2025-08-19 2:43 [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2 Haibo Chen
2025-08-19 15:50 ` Frank Li
@ 2025-08-22 9:19 ` Shawn Guo
1 sibling, 0 replies; 4+ messages in thread
From: Shawn Guo @ 2025-08-22 9:19 UTC (permalink / raw)
To: Haibo Chen
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, Peng Fan,
Frank Li, devicetree, imx, linux-arm-kernel, linux-kernel
On Tue, Aug 19, 2025 at 10:43:37AM +0800, Haibo Chen wrote:
> 1, the phy support up to 8Mbit/s databitrate for CAN FD.
> refer to product data sheet:
> https://www.nxp.com/docs/en/data-sheet/TJA1463.pdf
> 2, the standby pin of the phy is ACTIVE_LOW.
> 3, the phy of flexcan2 connect the standby/en pin to PCAL6408 on i2c4 bus.
>
> Fixes: 02b7adb791e1 ("arm64: dts: imx95-19x19-evk: add adc0 flexcan[1,2] i2c[2,3] uart5 spi3 and tpm3")
> Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 4+ messages in thread
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2025-08-19 2:43 [PATCH] arm64: dts: imx95-19x19-evk: correct the phy setting for flexcan1/2 Haibo Chen
2025-08-19 15:50 ` Frank Li
2025-08-21 15:03 ` Frank Li
2025-08-22 9:19 ` Shawn Guo
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