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authorMax Krummenacher <max.krummenacher@toradex.com>2016-03-08 15:02:41 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2017-01-10 23:13:22 +0100
commit469784d0944e2d1aef0db8589e30d10bbb304639 (patch)
tree332a193c9fbf5d8d39ac17b8e85a20b773500438
parentc4a8fe57c3953de8c11481120875029e09d534fc (diff)
imx6 device-tree: reduce SPI clock to datasheet maximum
According to the datasheet the SPI clock (for read) must not exceed 1 / 55ns for i.MX6Q/D and 1 / 43ns for i.MX6DL/S. Reflect that correctly in the device tree. Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> (cherry picked from commit c34080f3883684576b7629b3571dc9a1e018d511)
-rw-r--r--arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts2
-rw-r--r--arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts2
-rw-r--r--arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi4
-rw-r--r--arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi2
4 files changed, 5 insertions, 5 deletions
diff --git a/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts b/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts
index 2c99022..b603bf7 100644
--- a/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts
+++ b/arch/arm/boot/dts/imx6dl-colibri-cam-eval-v3.dts
@@ -120,7 +120,7 @@
spidev0: spidev@1 {
compatible = "spidev";
reg = <0>;
- spi-max-frequency = <50000000>;
+ spi-max-frequency = <23000000>;
};
};
diff --git a/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts b/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts
index 1c7191d..3a2121e 100644
--- a/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts
@@ -117,7 +117,7 @@
spidev0: spidev@1 {
compatible = "spidev";
reg = <0>;
- spi-max-frequency = <50000000>;
+ spi-max-frequency = <23000000>;
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi
index d14328b..0e9ce57 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis-eval.dtsi
@@ -139,7 +139,7 @@
spidev0: spidev@1 {
compatible = "spidev";
reg = <0>;
- spi-max-frequency = <50000000>;
+ spi-max-frequency = <18000000>;
};
};
@@ -150,7 +150,7 @@
spidev1: spidev@2 {
compatible = "spidev";
reg = <0>;
- spi-max-frequency = <50000000>;
+ spi-max-frequency = <18000000>;
};
};
diff --git a/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi b/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
index 07bd509..b54e6ae 100644
--- a/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-apalis-ixora.dtsi
@@ -141,7 +141,7 @@
spidev0: spidev@1 {
compatible = "spidev";
reg = <0>;
- spi-max-frequency = <50000000>;
+ spi-max-frequency = <18000000>;
};
};