openwrt/target/linux/sunxi/patches-3.13/173-6-dt-sun7i-fixup-mmc.patch

From e48e7ba7f97e883a24036df04cb474cf7cd22574 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 17 Feb 2014 17:16:08 +0100
Subject: [PATCH] ARM: sun7i: dt: Fixup mmc bindings

1) Now that we're no longer overriding the caps set by mmc_of_parse we need
to set cd-inverted for our card detection to work.

2) Now that we no longer claim UHS modes support we will never use any DDR
modes, so drive-strength 2 is enough for the mmc data pins.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 3bc6ac5..f4ecd79 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -399,6 +399,7 @@
 			clock-names = "ahb", "mod";
 			interrupts = <0 32 4>;
 			bus-width = <4>;
+			cd-inverted;
 			status = "disabled";
 		};
 
@@ -409,6 +410,7 @@
 			clock-names = "ahb", "mod";
 			interrupts = <0 33 4>;
 			bus-width = <4>;
+			cd-inverted;
 			status = "disabled";
 		};
 
@@ -419,6 +421,7 @@
 			clock-names = "ahb", "mod";
 			interrupts = <0 34 4>;
 			bus-width = <4>;
+			cd-inverted;
 			status = "disabled";
 		};
 
@@ -429,6 +432,7 @@
 			clock-names = "ahb", "mod";
 			interrupts = <0 35 4>;
 			bus-width = <4>;
+			cd-inverted;
 			status = "disabled";
 		};
 
@@ -554,7 +558,7 @@
 			mmc0_pins_a: mmc0@0 {
 				allwinner,pins = "PF0","PF1","PF2","PF3","PF4","PF5";
 				allwinner,function = "mmc0";
-				allwinner,drive = <3>;
+				allwinner,drive = <2>;
 				allwinner,pull = <0>;
 			};
 
@@ -568,7 +572,7 @@
 			mmc3_pins_a: mmc3@0 {
 				allwinner,pins = "PI4","PI5","PI6","PI7","PI8","PI9";
 				allwinner,function = "mmc3";
-				allwinner,drive = <3>;
+				allwinner,drive = <2>;
 				allwinner,pull = <0>;
 			};
 		};
-- 
1.8.5.5