diff mbox series

[2/2] arm: dts: imx6sx/imx6ul: set the tuning step and start tap for usdhc

Message ID 20181228093558.18434-2-haibo.chen@nxp.com (mailing list archive)
State New, archived
Headers show
Series [1/2] arm: dts: imx7d-sdb: add SD3.0 support for usdhc1 | expand

Commit Message

Bough Chen Dec. 28, 2018, 9:28 a.m. UTC 
i.MX uSDHC IP require that, to make the standard tuning logic work
normal, the tuning start tap need larger than 10.

This patch set the tuning start tap for 20, and set the tuning step
for 2, cover enough large range, make sure the standard tuning can
find a passing tuning delay cell.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
 arch/arm/boot/dts/imx6sx.dtsi | 8 ++++++++
 arch/arm/boot/dts/imx6ul.dtsi | 4 ++++
 2 files changed, 12 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index 272ff6133ec1..dc00aee68582 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -936,6 +936,8 @@ 
 					 <&clks IMX6SX_CLK_USDHC1>;
 				clock-names = "ipg", "ahb", "per";
 				bus-width = <4>;
+				fsl,tuning-step = <2>;
+				fsl,tuning-start-tap = <20>;
 				status = "disabled";
 			};
 
@@ -948,6 +950,8 @@ 
 					 <&clks IMX6SX_CLK_USDHC2>;
 				clock-names = "ipg", "ahb", "per";
 				bus-width = <4>;
+				fsl,tuning-step = <2>;
+				fsl,tuning-start-tap = <20>;
 				status = "disabled";
 			};
 
@@ -960,6 +964,8 @@ 
 					 <&clks IMX6SX_CLK_USDHC3>;
 				clock-names = "ipg", "ahb", "per";
 				bus-width = <4>;
+				fsl,tuning-step = <2>;
+				fsl,tuning-start-tap = <20>;
 				status = "disabled";
 			};
 
@@ -972,6 +978,8 @@ 
 					 <&clks IMX6SX_CLK_USDHC4>;
 				clock-names = "ipg", "ahb", "per";
 				bus-width = <4>;
+				fsl,tuning-step = <2>;
+				fsl,tuning-start-tap = <20>;
 				status = "disabled";
 			};
 
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index 62ed30c781ed..46dc1bc1f702 100644
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -857,6 +857,8 @@ 
 					 <&clks IMX6UL_CLK_USDHC1>;
 				clock-names = "ipg", "ahb", "per";
 				bus-width = <4>;
+				fsl,tuning-step = <2>;
+				fsl,tuning-start-tap = <20>;
 				status = "disabled";
 			};
 
@@ -869,6 +871,8 @@ 
 					 <&clks IMX6UL_CLK_USDHC2>;
 				clock-names = "ipg", "ahb", "per";
 				bus-width = <4>;
+				fsl,tuning-step = <2>;
+				fsl,tuning-start-tap = <20>;
 				status = "disabled";
 			};