arm64: zynqmp: Fix usb node drive strength and slew rate

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@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/b245c165f05845c1f3ab41a92c82b7ec1538cee4.1655288171.git.michal.simek@amd.com

diff --git a/arch/arm/dts/zynqmp-sck-kr-g-revA.dts b/arch/arm/dts/zynqmp-sck-kr-g-revA.dts
index 7be02ab29fa107e9e47cd0038dd22ecbf400bfbe..735c1e3d1a88a02cb9ead47e3d05a181932c63f3 100644 (file)
--- 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 56effb5e21a9e054e5ca967b5b1c20946e3e665e..63590619d43e3fbe921cee59b68f679d847ee53a 100644 (file)
--- 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 8250a493c8a04c917db7e6e9a84ad4065b86d259..b714bd3eb1b1d0d18385cb3bcbb8e97ff4e0d606 100644 (file)
--- 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 b81c2e6b7543d6535685572fcd43bd66a7f230b5..a1d8f9f0e51f3e299f49b94f087d0be6a701b3d3 100644 (file)
--- 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 d20f6675687bfc366a3d0f5b40d3f1edd8d3f9ee..7ea2a1c96f4e02cbde859772bcb85208459421c1 100644 (file)
--- 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 f32f87acacb6f6981f0ad4a66b15351def4c7fcd..4e6160bcd8b96a14d6189b7aca59223597648f3c 100644 (file)
--- 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 ea630a43dc7f8cd18ae9d2f38202f8267ddfb74e..5e7bc7384fceb4963b0940b1cb7b046e2a4525cc 100644 (file)
--- 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 c13b52a6aeaac0c88aac6b862593b09645407a05..a4e92c8bb16b747a635fddf8aefbff5e9cb4f67c 100644 (file)
--- 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 50bf479089135afa0a00bf5fd4d0d4b78b65ff6f..1418cffb20422c6971cccbe2681a957255a2cba2 100644 (file)
--- 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 752a9e38f3d34845432059256b778bcdb7a36c6b..7fd19ca3a8c0be1c8d02640b46f2872f31553b7b 100644 (file)
--- 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 6dfc8fe17bf218ae2501d75b55f8c9d9fa4f87f1..3e137676feb6a24c10b3766c6b2b7579986ac505 100644 (file)
--- 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 021fe88670fb8af4f05da562a1e5b02c414f8efe..e412992ff1bd45c352b8f2db7eb7afcf8e60cf47 100644 (file)
--- 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>;
                };
        };