[PATCH] arm64: zynqmp: Fix usb node drive strength and slew rate
Michal Simek
monstr at monstr.eu
Fri Jun 24 14:17:34 CEST 2022
st 15. 6. 2022 v 12:16 odesílatel Michal Simek <monstr at monstr.eu> napsal:
>
> From: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
>
> As per design, all input/rx pins should have fast slew rate and 12mA
> drive strength. Rest all pins should be slow slew rate and 4mA drive
> strength. Fix usb nodes as per this and remove setting of slow slew rate
> for all the usb gorup pins.
>
> Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
> Signed-off-by: Michal Simek <michal.simek at amd.com>
> ---
>
> arch/arm/dts/zynqmp-sck-kr-g-revA.dts | 10 ++++++++--
> arch/arm/dts/zynqmp-sck-kr-g-revB.dts | 10 ++++++++--
> arch/arm/dts/zynqmp-sck-kv-g-revA.dts | 5 ++++-
> arch/arm/dts/zynqmp-sck-kv-g-revB.dts | 5 ++++-
> arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts | 5 ++++-
> arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts | 5 ++++-
> arch/arm/dts/zynqmp-zcu100-revC.dts | 10 ++++++++--
> arch/arm/dts/zynqmp-zcu102-revA.dts | 5 ++++-
> arch/arm/dts/zynqmp-zcu104-revA.dts | 6 ++++--
> arch/arm/dts/zynqmp-zcu104-revC.dts | 6 ++++--
> arch/arm/dts/zynqmp-zcu106-revA.dts | 5 ++++-
> arch/arm/dts/zynqmp-zcu111-revA.dts | 5 ++++-
> 12 files changed, 60 insertions(+), 17 deletions(-)
>
> diff --git a/arch/arm/dts/zynqmp-sck-kr-g-revA.dts b/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
> index 7be02ab29fa1..735c1e3d1a88 100644
> --- a/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
> +++ b/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
> @@ -329,19 +329,22 @@
> pinctrl_usb0_default: usb0-default {
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
>
> mux {
> @@ -353,19 +356,22 @@
> pinctrl_usb1_default: usb1-default {
> conf {
> groups = "usb1_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO64", "MIO65", "MIO67";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO66", "MIO68", "MIO69", "MIO70", "MIO71",
> "MIO72", "MIO73", "MIO74", "MIO75";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
>
> mux {
> diff --git a/arch/arm/dts/zynqmp-sck-kr-g-revB.dts b/arch/arm/dts/zynqmp-sck-kr-g-revB.dts
> index 56effb5e21a9..63590619d43e 100644
> --- a/arch/arm/dts/zynqmp-sck-kr-g-revB.dts
> +++ b/arch/arm/dts/zynqmp-sck-kr-g-revB.dts
> @@ -329,19 +329,22 @@
> pinctrl_usb0_default: usb0-default {
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
>
> mux {
> @@ -353,19 +356,22 @@
> pinctrl_usb1_default: usb1-default {
> conf {
> groups = "usb1_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO64", "MIO65", "MIO67";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO66", "MIO68", "MIO69", "MIO70", "MIO71",
> "MIO72", "MIO73", "MIO74", "MIO75";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
>
> mux {
> diff --git a/arch/arm/dts/zynqmp-sck-kv-g-revA.dts b/arch/arm/dts/zynqmp-sck-kv-g-revA.dts
> index 8250a493c8a0..b714bd3eb1b1 100644
> --- a/arch/arm/dts/zynqmp-sck-kv-g-revA.dts
> +++ b/arch/arm/dts/zynqmp-sck-kv-g-revA.dts
> @@ -285,19 +285,22 @@
> pinctrl_usb0_default: usb0-default {
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
>
> mux {
> diff --git a/arch/arm/dts/zynqmp-sck-kv-g-revB.dts b/arch/arm/dts/zynqmp-sck-kv-g-revB.dts
> index b81c2e6b7543..a1d8f9f0e51f 100644
> --- a/arch/arm/dts/zynqmp-sck-kv-g-revB.dts
> +++ b/arch/arm/dts/zynqmp-sck-kv-g-revB.dts
> @@ -272,19 +272,22 @@
> pinctrl_usb0_default: usb0-default {
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
>
> mux {
> diff --git a/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts b/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts
> index d20f6675687b..7ea2a1c96f4e 100644
> --- a/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts
> +++ b/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts
> @@ -187,19 +187,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
>
> diff --git a/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts b/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts
> index f32f87acacb6..4e6160bcd8b9 100644
> --- a/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts
> +++ b/arch/arm/dts/zynqmp-zc1751-xm016-dc2.dts
> @@ -335,19 +335,22 @@
>
> conf {
> groups = "usb1_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO64", "MIO65", "MIO67";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO66", "MIO68", "MIO69", "MIO70", "MIO71",
> "MIO72", "MIO73", "MIO74", "MIO75";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
>
> diff --git a/arch/arm/dts/zynqmp-zcu100-revC.dts b/arch/arm/dts/zynqmp-zcu100-revC.dts
> index ea630a43dc7f..5e7bc7384fce 100644
> --- a/arch/arm/dts/zynqmp-zcu100-revC.dts
> +++ b/arch/arm/dts/zynqmp-zcu100-revC.dts
> @@ -441,19 +441,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
>
> @@ -465,19 +468,22 @@
>
> conf {
> groups = "usb1_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO64", "MIO65", "MIO67";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO66", "MIO68", "MIO69", "MIO70", "MIO71",
> "MIO72", "MIO73", "MIO74", "MIO75";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
> };
> diff --git a/arch/arm/dts/zynqmp-zcu102-revA.dts b/arch/arm/dts/zynqmp-zcu102-revA.dts
> index c13b52a6aeaa..a4e92c8bb16b 100644
> --- a/arch/arm/dts/zynqmp-zcu102-revA.dts
> +++ b/arch/arm/dts/zynqmp-zcu102-revA.dts
> @@ -795,19 +795,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
>
> diff --git a/arch/arm/dts/zynqmp-zcu104-revA.dts b/arch/arm/dts/zynqmp-zcu104-revA.dts
> index 50bf47908913..1418cffb2042 100644
> --- a/arch/arm/dts/zynqmp-zcu104-revA.dts
> +++ b/arch/arm/dts/zynqmp-zcu104-revA.dts
> @@ -402,20 +402,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> - drive-strength = <12>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
> };
> diff --git a/arch/arm/dts/zynqmp-zcu104-revC.dts b/arch/arm/dts/zynqmp-zcu104-revC.dts
> index 752a9e38f3d3..7fd19ca3a8c0 100644
> --- a/arch/arm/dts/zynqmp-zcu104-revC.dts
> +++ b/arch/arm/dts/zynqmp-zcu104-revC.dts
> @@ -414,20 +414,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> - drive-strength = <12>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
> };
> diff --git a/arch/arm/dts/zynqmp-zcu106-revA.dts b/arch/arm/dts/zynqmp-zcu106-revA.dts
> index 6dfc8fe17bf2..3e137676feb6 100644
> --- a/arch/arm/dts/zynqmp-zcu106-revA.dts
> +++ b/arch/arm/dts/zynqmp-zcu106-revA.dts
> @@ -793,19 +793,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
>
> diff --git a/arch/arm/dts/zynqmp-zcu111-revA.dts b/arch/arm/dts/zynqmp-zcu111-revA.dts
> index 021fe88670fb..e412992ff1bd 100644
> --- a/arch/arm/dts/zynqmp-zcu111-revA.dts
> +++ b/arch/arm/dts/zynqmp-zcu111-revA.dts
> @@ -652,19 +652,22 @@
>
> conf {
> groups = "usb0_0_grp";
> - slew-rate = <SLEW_RATE_SLOW>;
> power-source = <IO_STANDARD_LVCMOS18>;
> };
>
> conf-rx {
> pins = "MIO52", "MIO53", "MIO55";
> bias-high-impedance;
> + drive-strength = <12>;
> + slew-rate = <SLEW_RATE_FAST>;
> };
>
> conf-tx {
> pins = "MIO54", "MIO56", "MIO57", "MIO58", "MIO59",
> "MIO60", "MIO61", "MIO62", "MIO63";
> bias-disable;
> + drive-strength = <4>;
> + slew-rate = <SLEW_RATE_SLOW>;
> };
> };
>
> --
> 2.36.1
>
Applied.
M
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs
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