[PATCH v2 1/3] ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL

[PATCH v2 1/3] ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL

[Jagan Teki]

The EDIMM STARTER KIT i.Core 1.5 MIPI Evaluation is based on
the 1.5 version of the i.Core MX6 cpu module. The 1.5 version
differs from the original one for a few details, including the
ethernet PHY interface clock provider.

With this commit, the ethernet interface works properly:
SMSC LAN8710/LAN8720 2188000.ethernet-1:00: attached PHY driver

While before using the 1.5 version, ethernet failed to startup
do to un-clocked PHY interface:
fec 2188000.ethernet eth0: could not attach to PHY

Similar fix has merged for i.Core MX6Q but missed to update for DL.

Fixes: a8039f2dd089 ("ARM: dts: imx6dl: Add Engicam i.CoreM6 1.5 Quad/Dual MIPI starter kit support")
Cc: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- Add Michael s-o-b

 arch/arm/boot/dts/imx6dl-icore-mipi.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6dl-icore-mipi.dts b/arch/arm/boot/dts/imx6dl-icore-mipi.dts
index e43bccb78ab2..d8f3821a0ffd 100644
--- a/arch/arm/boot/dts/imx6dl-icore-mipi.dts
+++ b/arch/arm/boot/dts/imx6dl-icore-mipi.dts
@@ -8,7 +8,7 @@
 /dts-v1/;
 
 #include "imx6dl.dtsi"
-#include "imx6qdl-icore.dtsi"
+#include "imx6qdl-icore-1.5.dtsi"
 
 / {
 	model = "Engicam i.CoreM6 DualLite/Solo MIPI Starter Kit";
-- 
2.18.0.321.gffc6fa0e3


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[PATCH v2 2/3] ARM: dts: imx6qdl-icore-1.5: Remove duplicate phy reset methods

[Jagan Teki]

From: Michael Trimarchi <michael@amarulasolutions.com>

Engicam i.CoreM6 1.5 Quad/Dual MIPI dtsi is reusing fec node
from Engicam i.CoreM6 dtsi but have sampe copy of phy-reset-gpio
and phy-mode properties.

So, drop this phy reset methods from imx6qdl-icore-1.5 dsti file.

Cc: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch.

 arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi b/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi
index d91d46b5898f..0fd7f2e24d9c 100644
--- a/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi
@@ -25,10 +25,8 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
 	clocks = <&clks IMX6QDL_CLK_ENET>,
 		 <&clks IMX6QDL_CLK_ENET>,
 		 <&clks IMX6QDL_CLK_ENET_REF>;
-	phy-mode = "rmii";
 	status = "okay";
 };
-- 
2.18.0.321.gffc6fa0e3


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Re: [PATCH v2 2/3] ARM: dts: imx6qdl-icore-1.5: Remove duplicate phy reset methods

[Jacopo Mondi]

[-- Attachment #1.1: Type: text/plain, Size: 1556 bytes --]

Hi Jagan,
   small detail, this should come -after= 3/3 in the series, am I
   wrong ?

On Mon, Dec 30, 2019 at 05:30:20PM +0530, Jagan Teki wrote:
> From: Michael Trimarchi <michael@amarulasolutions.com>
>
> Engicam i.CoreM6 1.5 Quad/Dual MIPI dtsi is reusing fec node
> from Engicam i.CoreM6 dtsi but have sampe copy of phy-reset-gpio
> and phy-mode properties.
>
> So, drop this phy reset methods from imx6qdl-icore-1.5 dsti file.
>
> Cc: Jacopo Mondi <jacopo@jmondi.org>
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

Anyway, I've tested on my iCore 1.5 Quad starter kit and things are
still working.

Pending acceptance of 3/3, which seem correct to me but I cannot
really judge knowing very few things about net:

Tested-by: Jacopo Mondi <jacopo@jmondi.org>

Thanks
   j

> ---
> Changes for v2:
> - new patch.
>
>  arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi | 2 --
>  1 file changed, 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi b/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi
> index d91d46b5898f..0fd7f2e24d9c 100644
> --- a/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-icore-1.5.dtsi
> @@ -25,10 +25,8 @@
>  &fec {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_enet>;
> -	phy-reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
>  	clocks = <&clks IMX6QDL_CLK_ENET>,
>  		 <&clks IMX6QDL_CLK_ENET>,
>  		 <&clks IMX6QDL_CLK_ENET_REF>;
> -	phy-mode = "rmii";
>  	status = "okay";
>  };
> --
> 2.18.0.321.gffc6fa0e3
>

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[PATCH v2 3/3] ARM: dts: imx6qdl-icore: Add fec phy-handle

[Jagan Teki]

From: Michael Trimarchi <michael@amarulasolutions.com>

LAN8720 needs a reset of every clock enable. The reset needs
to be done at device level, due the flag PHY_RST_AFTER_CLK_EN.

So, add phy-handle by creating mdio child node inside fec.
This will eventually move the phy-reset-gpio which is defined
in fec node.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- new patch.

 arch/arm/boot/dts/imx6qdl-icore.dtsi | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl-icore.dtsi b/arch/arm/boot/dts/imx6qdl-icore.dtsi
index 7814f1ef0804..756f3a9f1b4f 100644
--- a/arch/arm/boot/dts/imx6qdl-icore.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-icore.dtsi
@@ -150,10 +150,23 @@
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet>;
-	phy-reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
 	clocks = <&clks IMX6QDL_CLK_ENET>, <&clks IMX6QDL_CLK_ENET>, <&rmii_clk>;
 	phy-mode = "rmii";
+	phy-handle = <&eth_phy>;
 	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		eth_phy: ethernet-phy@0 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <0>;
+			reset-gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <4000>;
+			reset-deassert-us = <4000>;
+		};
+	};
 };
 
 &gpmi {
-- 
2.18.0.321.gffc6fa0e3


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Re: [PATCH v2 1/3] ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL

[Jacopo Mondi]

[-- Attachment #1.1: Type: text/plain, Size: 1900 bytes --]

Hi Jagan,

On Mon, Dec 30, 2019 at 05:30:19PM +0530, Jagan Teki wrote:
> The EDIMM STARTER KIT i.Core 1.5 MIPI Evaluation is based on
> the 1.5 version of the i.Core MX6 cpu module. The 1.5 version
> differs from the original one for a few details, including the
> ethernet PHY interface clock provider.
>
> With this commit, the ethernet interface works properly:
> SMSC LAN8710/LAN8720 2188000.ethernet-1:00: attached PHY driver
>
> While before using the 1.5 version, ethernet failed to startup
> do to un-clocked PHY interface:
> fec 2188000.ethernet eth0: could not attach to PHY
>
> Similar fix has merged for i.Core MX6Q but missed to update for DL.
>
> Fixes: a8039f2dd089 ("ARM: dts: imx6dl: Add Engicam i.CoreM6 1.5 Quad/Dual MIPI starter kit support")
> Cc: Jacopo Mondi <jacopo@jmondi.org>
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> ---
> Changes for v2:
> - Add Michael s-o-b
>
>  arch/arm/boot/dts/imx6dl-icore-mipi.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/imx6dl-icore-mipi.dts b/arch/arm/boot/dts/imx6dl-icore-mipi.dts
> index e43bccb78ab2..d8f3821a0ffd 100644
> --- a/arch/arm/boot/dts/imx6dl-icore-mipi.dts
> +++ b/arch/arm/boot/dts/imx6dl-icore-mipi.dts
> @@ -8,7 +8,7 @@
>  /dts-v1/;
>
>  #include "imx6dl.dtsi"
> -#include "imx6qdl-icore.dtsi"
> +#include "imx6qdl-icore-1.5.dtsi"
>
>  / {
>  	model = "Engicam i.CoreM6 DualLite/Solo MIPI Starter Kit";

In
09ad741b7ece ("ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6")>

I also changed this line to
-       model = "Engicam i.CoreM6 Quad/Dual MIPI Starter Kit";
+       model = "Engicam i.CoreM6 1.5 Quad/Dual MIPI Starter Kit";

Maybe you want the same here.

With or without this change:
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

Thanks
   j

> --
> 2.18.0.321.gffc6fa0e3


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Re: [PATCH v2 1/3] ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL

[Shawn Guo]

On Mon, Dec 30, 2019 at 05:30:19PM +0530, Jagan Teki wrote:
> The EDIMM STARTER KIT i.Core 1.5 MIPI Evaluation is based on
> the 1.5 version of the i.Core MX6 cpu module. The 1.5 version
> differs from the original one for a few details, including the
> ethernet PHY interface clock provider.
> 
> With this commit, the ethernet interface works properly:
> SMSC LAN8710/LAN8720 2188000.ethernet-1:00: attached PHY driver
> 
> While before using the 1.5 version, ethernet failed to startup
> do to un-clocked PHY interface:
> fec 2188000.ethernet eth0: could not attach to PHY
> 
> Similar fix has merged for i.Core MX6Q but missed to update for DL.
> 
> Fixes: a8039f2dd089 ("ARM: dts: imx6dl: Add Engicam i.CoreM6 1.5 Quad/Dual MIPI starter kit support")
> Cc: Jacopo Mondi <jacopo@jmondi.org>
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

Applied all 3, thanks.

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Re: [PATCH v2 1/3] ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL

[Naresh Kamboju]

The following dtbs build error noticed for arm build on stable rc 4.19 branch.

# make -sk KBUILD_BUILD_USER=KernelCI -C/linux ARCH=arm
CROSS_COMPILE=arm-linux-gnueabihf- HOSTCC=gcc O=build dtbs
 #
 ../arch/arm/boot/dts/imx6dl-icore-mipi.dts:11:10: fatal error:
imx6qdl-icore-1.5.dtsi: No such file or directory
    11 | #include "imx6qdl-icore-1.5.dtsi"
       |          ^~~~~~~~~~~~~~~~~~~~~~~~
 compilation terminated.
 make[2]: *** [scripts/Makefile.lib:294:
arch/arm/boot/dts/imx6dl-icore-mipi.dtb] Error 1


On Thu, 9 Jan 2020 at 13:16, Shawn Guo <shawnguo@kernel.org> wrote:
>
> On Mon, Dec 30, 2019 at 05:30:19PM +0530, Jagan Teki wrote:
> > The EDIMM STARTER KIT i.Core 1.5 MIPI Evaluation is based on
> > the 1.5 version of the i.Core MX6 cpu module. The 1.5 version
> > differs from the original one for a few details, including the
> > ethernet PHY interface clock provider.
> >
> > With this commit, the ethernet interface works properly:
> > SMSC LAN8710/LAN8720 2188000.ethernet-1:00: attached PHY driver
> >
> > While before using the 1.5 version, ethernet failed to startup
> > do to un-clocked PHY interface:
> > fec 2188000.ethernet eth0: could not attach to PHY
> >
> > Similar fix has merged for i.Core MX6Q but missed to update for DL.
> >
> > Fixes: a8039f2dd089 ("ARM: dts: imx6dl: Add Engicam i.CoreM6 1.5 Quad/Dual MIPI starter kit support")
> > Cc: Jacopo Mondi <jacopo@jmondi.org>
> > Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> > Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
>
> Applied all 3, thanks.

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