openwrtv4/target/linux/brcm2708/patches-4.1/0221-bcm270x_dt-Use-the-sdhost-MMC-controller-by-default.patch

From 702070d58bb61bcdcc46f28b6cef7f269ef14c3e Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 8 Dec 2015 16:23:33 +0000
Subject: [PATCH 221/222] bcm270x_dt: Use the sdhost MMC controller by default

The "mmc" overlay reverts to using the other controller.
---
 arch/arm/boot/dts/bcm2708-rpi-b-plus.dts      | 11 ++++--
 arch/arm/boot/dts/bcm2708-rpi-b.dts           | 11 ++++--
 arch/arm/boot/dts/bcm2708-rpi-cm.dtsi         | 14 ++++++--
 arch/arm/boot/dts/bcm2708_common.dtsi         | 13 +++++++
 arch/arm/boot/dts/bcm2709-rpi-2-b.dts         | 11 ++++--
 arch/arm/boot/dts/overlays/mmc-overlay.dts    | 22 +++++++++++-
 arch/arm/boot/dts/overlays/sdhost-overlay.dts | 49 ++++++---------------------
 arch/arm/boot/dts/overlays/sdio-overlay.dts   |  1 -
 8 files changed, 84 insertions(+), 48 deletions(-)

--- a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
@@ -8,6 +8,11 @@
 };
 
 &gpio {
+	sdhost_pins: sdhost_pins {
+		brcm,pins = <48 49 50 51 52 53>;
+		brcm,function = <4>; /* alt0 */
+	};
+
 	spi0_pins: spi0_pins {
 		brcm,pins = <7 8 9 10 11>;
 		brcm,function = <4>; /* alt0 */
@@ -29,9 +34,11 @@
 	};
 };
 
-&mmc {
-	status = "okay";
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_pins>;
 	bus-width = <4>;
+	status = "okay";
 };
 
 &fb {
--- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
@@ -8,6 +8,11 @@
 };
 
 &gpio {
+	sdhost_pins: sdhost_pins {
+		brcm,pins = <48 49 50 51 52 53>;
+		brcm,function = <4>; /* alt0 */
+	};
+
 	spi0_pins: spi0_pins {
 		brcm,pins = <7 8 9 10 11>;
 		brcm,function = <4>; /* alt0 */
@@ -29,9 +34,11 @@
 	};
 };
 
-&mmc {
-	status = "okay";
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_pins>;
 	bus-width = <4>;
+	status = "okay";
 };
 
 &fb {
--- a/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
+++ b/arch/arm/boot/dts/bcm2708-rpi-cm.dtsi
@@ -1,5 +1,12 @@
 /include/ "bcm2708.dtsi"
 
+&gpio {
+	sdhost_pins: sdhost_pins {
+		brcm,pins = <48 49 50 51 52 53>;
+		brcm,function = <4>; /* alt0 */
+	};
+};
+
 &leds {
 	act_led: act {
 		label = "led0";
@@ -8,9 +15,12 @@
 	};
 };
 
-&mmc {
-	status = "okay";
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_pins>;
 	bus-width = <4>;
+	non-removable;
+	status = "okay";
 };
 
 &fb {
--- a/arch/arm/boot/dts/bcm2708_common.dtsi
+++ b/arch/arm/boot/dts/bcm2708_common.dtsi
@@ -14,6 +14,7 @@
 		mailbox = &mailbox;
 		gpio = &gpio;
 		uart0 = &uart0;
+		sdhost = &sdhost;
 		i2s  = &i2s;
 		spi0 = &spi0;
 		i2c0 = &i2c0;
@@ -114,6 +115,18 @@
 			status = "disabled";
 		};
 
+		sdhost: sdhost@7e202000 {
+			compatible = "brcm,bcm2835-sdhost";
+			reg = <0x7e202000 0x100>;
+			interrupts = <2 24>;
+			clocks = <&clk_core>;
+			dmas = <&dma 13>,
+			       <&dma 13>;
+			dma-names = "tx", "rx";
+			brcm,pio-limit = <1>;
+			status = "disabled";
+		};
+
 		i2s: i2s@7e203000 {
 			compatible = "brcm,bcm2708-i2s";
 			reg = <0x7e203000 0x24>,
--- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
@@ -8,6 +8,11 @@
 };
 
 &gpio {
+	sdhost_pins: sdhost_pins {
+		brcm,pins = <48 49 50 51 52 53>;
+		brcm,function = <4>; /* alt0 */
+	};
+
 	spi0_pins: spi0_pins {
 		brcm,pins = <7 8 9 10 11>;
 		brcm,function = <4>; /* alt0 */
@@ -29,9 +34,11 @@
 	};
 };
 
-&mmc {
-	status = "okay";
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_pins>;
 	bus-width = <4>;
+	status = "okay";
 };
 
 &fb {
--- a/arch/arm/boot/dts/overlays/mmc-overlay.dts
+++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
@@ -6,9 +6,29 @@
 
 	fragment@0 {
 		target = <&mmc>;
-
 		frag0: __overlay__ {
+			pinctrl-names = "default";
+			pinctrl-0 = <&mmc_pins>;
+			bus-width = <4>;
 			brcm,overclock-50 = <0>;
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target = <&gpio>;
+		__overlay__ {
+			mmc_pins: mmc_pins {
+				brcm,pins = <48 49 50 51 52 53>;
+				brcm,function = <7>; /* alt3 */
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&sdhost>;
+		__overlay__ {
+			status = "disabled";
 		};
 	};
 
--- a/arch/arm/boot/dts/overlays/sdhost-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sdhost-overlay.dts
@@ -5,52 +5,25 @@
 	compatible = "brcm,bcm2708";
 
 	fragment@0 {
-		target = <&soc>;
+		target = <&mmc>;
 		__overlay__ {
-			#address-cells = <1>;
-			#size-cells = <1>;
-
-			sdhost: sdhost@7e202000 {
-				compatible = "brcm,bcm2835-sdhost";
-				reg = <0x7e202000 0x100>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&sdhost_pins>;
-				interrupts = <2 24>;
-				clocks = <&clk_core>;
-				dmas = <&dma 13>,
-				       <&dma 13>;
-				dma-names = "tx", "rx";
-				brcm,delay-after-stop = <0>;
-				brcm,overclock-50 = <0>;
-				brcm,pio-limit = <1>;
-				status = "okay";
-			};
+			status = "disabled";
 		};
 	};
 
 	fragment@1 {
-		target = <&gpio>;
-		__overlay__ {
-			sdhost_pins: sdhost_pins {
-				brcm,pins = <48 49 50 51 52 53>;
-				brcm,function = <4>; /* alt0 */
-			};
-		};
-	};
-
-	fragment@2 {
-		target = <&mmc>;
-		__overlay__ {
-			/* Find a way to disable the other driver */
-			compatible = "";
-			status = "disabled";
+		target = <&sdhost>;
+		frag1: __overlay__ {
+			brcm,overclock-50 = <0>;
+			brcm,pio-limit = <1>;
+			status = "okay";
 		};
 	};
 
 	__overrides__ {
-		overclock_50     = <&sdhost>,"brcm,overclock-50:0";
-		force_pio        = <&sdhost>,"brcm,force-pio?";
-		pio_limit        = <&sdhost>,"brcm,pio-limit:0";
-		debug            = <&sdhost>,"brcm,debug?";
+		overclock_50     = <&frag1>,"brcm,overclock-50:0";
+		force_pio        = <&frag1>,"brcm,force-pio?";
+		pio_limit        = <&frag1>,"brcm,pio-limit:0";
+		debug            = <&frag1>,"brcm,debug?";
 	};
 };
--- a/arch/arm/boot/dts/overlays/sdio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts
@@ -8,7 +8,6 @@
 	fragment@3 {
 		target = <&mmc>;
 		sdio_mmc: __overlay__ {
-			compatible = "brcm,bcm2835-mmc";
 			pinctrl-names = "default";
 			pinctrl-0 = <&sdio_pins>;
 			non-removable;