From 12ffe75819bb18b433642b21bbb5d1be7c0a1142 Mon Sep 17 00:00:00 2001
From: Manish Narani <manish.narani@xilinx.com>
Date: Thu, 13 Feb 2020 23:37:30 -0700
Subject: [PATCH] arm64: zynqmp: Add 'no-1-8-v' property for ZynqMP Boards
Modify dts files to add 'no-1-8-v' property for all the ZynqMP boards.
User can remove this property to enable the UHS mode. This is to keep
the same speed (HS) modes across all the stages of the Linux Boot. Due
to power cycling limitation of some of the ZynqMP boards, some SD cards
don't get power cycled and are failing in Linux.
Signed-off-by: Manish Narani <manish.narani@xilinx.com>
---
arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts | 5 ++++-
arch/arm/dts/zynqmp-zcu102-rev1.0.dts | 4 ----
arch/arm/dts/zynqmp-zcu102-revA.dts | 6 +++++-
arch/arm/dts/zynqmp-zcu106-revA.dts | 4 ++++
arch/arm/dts/zynqmp-zcu111-revA.dts | 4 ++++
arch/arm/dts/zynqmp-zcu1285-revA.dts | 4 ++++
arch/arm/dts/zynqmp-zcu208-revA.dts | 4 ++++
arch/arm/dts/zynqmp-zcu216-revA.dts | 4 ++++
8 files changed, 29 insertions(+), 6 deletions(-)
diff --git a/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts b/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts
index d604cf1342..d8ea5578e7 100644
--- a/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts
+++ b/arch/arm/dts/zynqmp-zc1751-xm015-dc1.dts
@@ -154,7 +154,10 @@
/* SD1 with level shifter */
&sdhci1 {
status = "okay";
- no-1-8-v; /* for 1.0 silicon */
+ /*
+ * This property should be removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
diff --git a/arch/arm/dts/zynqmp-zcu102-rev1.0.dts b/arch/arm/dts/zynqmp-zcu102-rev1.0.dts
index f39013794f..d508f33599 100644
--- a/arch/arm/dts/zynqmp-zcu102-rev1.0.dts
+++ b/arch/arm/dts/zynqmp-zcu102-rev1.0.dts
@@ -34,7 +34,3 @@
reg = <0xe0 0x3>;
};
};
-
-&sdhci1 {
- /delete-property/ no-1-8-v;
-};
diff --git a/arch/arm/dts/zynqmp-zcu102-revA.dts b/arch/arm/dts/zynqmp-zcu102-revA.dts
index 222b67c7ce..e63f4b9cd8 100644
--- a/arch/arm/dts/zynqmp-zcu102-revA.dts
+++ b/arch/arm/dts/zynqmp-zcu102-revA.dts
@@ -655,7 +655,11 @@
/* SD1 with level shifter */
&sdhci1 {
status = "okay";
- no-1-8-v; /* for 1.0 silicon */
+ /*
+ * 1.0 revision has level shifter and this property should be
+ * removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
diff --git a/arch/arm/dts/zynqmp-zcu106-revA.dts b/arch/arm/dts/zynqmp-zcu106-revA.dts
index dc533f5f6d..a5c4309f2f 100644
--- a/arch/arm/dts/zynqmp-zcu106-revA.dts
+++ b/arch/arm/dts/zynqmp-zcu106-revA.dts
@@ -653,6 +653,10 @@
/* SD1 with level shifter */
&sdhci1 {
status = "okay";
+ /*
+ * This property should be removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
diff --git a/arch/arm/dts/zynqmp-zcu111-revA.dts b/arch/arm/dts/zynqmp-zcu111-revA.dts
index 1304c509ac..755c30e9ff 100644
--- a/arch/arm/dts/zynqmp-zcu111-revA.dts
+++ b/arch/arm/dts/zynqmp-zcu111-revA.dts
@@ -567,6 +567,10 @@
&sdhci1 {
status = "okay";
disable-wp;
+ /*
+ * This property should be removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
diff --git a/arch/arm/dts/zynqmp-zcu1285-revA.dts b/arch/arm/dts/zynqmp-zcu1285-revA.dts
index 8a4d5b9fed..d8b9cb1a9e 100644
--- a/arch/arm/dts/zynqmp-zcu1285-revA.dts
+++ b/arch/arm/dts/zynqmp-zcu1285-revA.dts
@@ -241,5 +241,9 @@
&sdhci1 {
status = "okay";
+ /*
+ * This property should be removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
diff --git a/arch/arm/dts/zynqmp-zcu208-revA.dts b/arch/arm/dts/zynqmp-zcu208-revA.dts
index 7395f23b67..75ecd7a5c2 100644
--- a/arch/arm/dts/zynqmp-zcu208-revA.dts
+++ b/arch/arm/dts/zynqmp-zcu208-revA.dts
@@ -563,6 +563,10 @@
&sdhci1 {
status = "okay";
disable-wp;
+ /*
+ * This property should be removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
diff --git a/arch/arm/dts/zynqmp-zcu216-revA.dts b/arch/arm/dts/zynqmp-zcu216-revA.dts
index f08bbe36c2..f3b5edfeb4 100644
--- a/arch/arm/dts/zynqmp-zcu216-revA.dts
+++ b/arch/arm/dts/zynqmp-zcu216-revA.dts
@@ -567,6 +567,10 @@
&sdhci1 {
status = "okay";
disable-wp;
+ /*
+ * This property should be removed for supporting UHS mode
+ */
+ no-1-8-v;
xlnx,mio_bank = <1>;
};
--
2.39.5