openwrt-owl/target/linux/brcm2708/patches-4.4/0156-Aux-SPI-1-2-implementation.patch

From 9fa83cc7de026d7d41b4a13f037cc30f5f877956 Mon Sep 17 00:00:00 2001
From: Fraser <github@frasersdev.net>
Date: Tue, 23 Feb 2016 10:04:37 +1100
Subject: [PATCH] Aux SPI 1&2 implementation

Adds aux spi 1 & 2 devices to compatible raspberry PIs.
* Minor config of the driver build environment to ensure they get built
for CONFIG_ARCH_BCM2708 & CONFIG_ARCH_BCM2709 devices.
* Adds the aux spi driver into the defconfigs as a module.
* Adds the auxiliary and spi1/2 devices into the device tree in a
disabled state
* Provides decide tree overlays which enables the devices and gives
users a degree of control over how they are setup.
---
 arch/arm/boot/dts/bcm2708_common.dtsi           | 34 ++++++++-
 arch/arm/boot/dts/overlays/Makefile             |  6 ++
 arch/arm/boot/dts/overlays/README               | 99 +++++++++++++++++++++++++
 arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts | 57 ++++++++++++++
 arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts | 69 +++++++++++++++++
 arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts | 81 ++++++++++++++++++++
 arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts | 57 ++++++++++++++
 arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts | 69 +++++++++++++++++
 arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts | 81 ++++++++++++++++++++
 arch/arm/configs/bcm2709_defconfig              |  1 +
 arch/arm/configs/bcmrpi_defconfig               |  1 +
 drivers/clk/bcm/Makefile                        |  2 +-
 drivers/spi/Kconfig                             |  2 +-
 13 files changed, 556 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts
 create mode 100644 arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts

--- a/arch/arm/boot/dts/bcm2708_common.dtsi
+++ b/arch/arm/boot/dts/bcm2708_common.dtsi
@@ -1,3 +1,4 @@
+#include <dt-bindings/clock/bcm2835-aux.h>
 #include "skeleton.dtsi"
 
 / {
@@ -5,6 +6,7 @@
 
 	aliases {
 		audio = &audio;
+		aux = &aux;
 		sound = &sound;
 		soc = &soc;
 		dma = &dma;
@@ -19,6 +21,8 @@
 		spi0 = &spi0;
 		i2c0 = &i2c0;
 		uart1 = &uart1;
+		spi1 = &spi1;
+		spi2 = &spi2;
 		mmc = &mmc;
 		i2c1 = &i2c1;
 		i2c2 = &i2c2;
@@ -186,6 +190,14 @@
 			status = "disabled";
 		};
 
+		aux: aux@0x7e215004 {
+			compatible = "brcm,bcm2835-aux";
+			#clock-cells = <1>;
+			reg = <0x7e215000 0x8>;
+			clocks = <&clk_core>;
+			status = "disabled";
+		};
+
 		uart1: uart@7e215040 {
 			compatible = "brcm,bcm2835-aux-uart", "ns16550";
 			reg = <0x7e215040 0x40>;
@@ -194,7 +206,27 @@
 			reg-shift = <2>;
 			no-loopback-test;
 			status = "disabled";
-	        };
+		};
+
+		spi1: spi@7e215080 {
+			compatible = "brcm,bcm2835-aux-spi";
+			reg = <0x7e215080 0x40>, <0x7e215000 0x8>;
+			interrupts = <1 29>;
+			clocks = <&aux BCM2835_AUX_CLOCK_SPI1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi2: spi@7e2150C0 {
+			compatible = "brcm,bcm2835-aux-spi";
+			reg = <0x7e2150C0 0x40>, <0x7e215000 0x8>;
+			interrupts = <1 29>;
+			clocks = <&aux BCM2835_AUX_CLOCK_SPI2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
 
 		mmc: mmc@7e300000 {
 			compatible = "brcm,bcm2835-mmc";
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -57,6 +57,12 @@ dtb-$(RPI_DT_OVERLAYS) += sdtweak-overla
 dtb-$(RPI_DT_OVERLAYS) += smi-dev-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += smi-nand-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += smi-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi1-1cs-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi1-2cs-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi1-3cs-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi2-1cs-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi2-2cs-overlay.dtb
+dtb-$(RPI_DT_OVERLAYS) += spi2-3cs-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += spi-gpio35-39-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += tinylcd35-overlay.dtb
 dtb-$(RPI_DT_OVERLAYS) += uart1-overlay.dtb
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -713,6 +713,105 @@ Load:   dtoverlay=spi-gpio35-39
 Params: <None>
 
 
+Name:   spi1-1cs
+Info:   Enables spi1 with a single chip select (CS) line and associated spidev
+        dev node. The gpio pin number for the CS line and spidev device node
+        creation are configurable.
+        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
+              A+, B+, Zero and PI2 B; as well as the Compute Module.
+Load:   dtoverlay=spi1-1cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI1_CE0).
+        cs0_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev1.0 (default
+                                is 'okay' or enabled).
+
+
+Name:   spi1-2cs
+Info:   Enables spi1 with two chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
+              A+, B+, Zero and PI2 B; as well as the Compute Module.
+Load:   dtoverlay=spi1-2cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI1_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 17 - BCM SPI1_CE1).
+        cs0_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev1.0 (default
+                                is 'okay' or enabled).
+        cs1_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev1.1 (default
+                                is 'okay' or enabled).
+
+
+Name:   spi1-3cs
+Info:   Enables spi1 with three chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+        N.B.: spi1 is only accessible on devices with a 40pin header, eg:
+              A+, B+, Zero and PI2 B; as well as the Compute Module.
+Load:   dtoverlay=spi1-3cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 18 - BCM SPI1_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 17 - BCM SPI1_CE1).
+        cs2_pin                 GPIO pin for CS2 (default 16 - BCM SPI1_CE2).
+        cs0_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev1.0 (default
+                                is 'okay' or enabled).
+        cs1_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev1.1 (default
+                                is 'okay' or enabled).
+        cs2_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev1.2 (default
+                                is 'okay' or enabled).
+
+
+Name:   spi2-1cs
+Info:   Enables spi2 with a single chip select (CS) line and associated spidev
+        dev node. The gpio pin number for the CS line and spidev device node
+        creation are configurable.
+        N.B.: spi2 is only accessible with the Compute Module.
+Load:   dtoverlay=spi2-1cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
+        cs0_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev2.0 (default
+                                is 'okay' or enabled).
+
+
+Name:   spi2-2cs
+Info:   Enables spi2 with two chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+        N.B.: spi2 is only accessible with the Compute Module.
+Load:   dtoverlay=spi2-2cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 44 - BCM SPI2_CE1).
+        cs0_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev2.0 (default
+                                is 'okay' or enabled).
+        cs1_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev2.1 (default
+                                is 'okay' or enabled).
+
+
+Name:   spi2-3cs
+Info:   Enables spi2 with three chip select (CS) lines and associated spidev
+        dev nodes. The gpio pin numbers for the CS lines and spidev device node
+        creation are configurable.
+        N.B.: spi2 is only accessible with the Compute Module.
+Load:   dtoverlay=spi2-3cs,<param>=<val>
+Params: cs0_pin                 GPIO pin for CS0 (default 43 - BCM SPI2_CE0).
+        cs1_pin                 GPIO pin for CS1 (default 44 - BCM SPI2_CE1).
+        cs2_pin                 GPIO pin for CS2 (default 45 - BCM SPI2_CE2).
+        cs0_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev2.0 (default
+                                is 'okay' or enabled).
+        cs1_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev2.1 (default
+                                is 'okay' or enabled).
+        cs2_spidev              Set to 'disabled' to stop the creation of a
+                                userspace device node /dev/spidev2.2 (default
+                                is 'okay' or enabled).
+
+
 Name:   tinylcd35
 Info:   3.5" Color TFT Display by www.tinylcd.com
         Options: Touch, RTC, keypad
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/spi1-1cs-overlay.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			spi1_pins: spi1_pins {
+				brcm,pins = <19 20 21>;
+				brcm,function = <3>; /* alt4 */
+			};
+
+			spi1_cs_pins: spi1_cs_pins {
+				brcm,pins = <18>;
+				brcm,function = <1>; /* output */
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi1>;
+		frag1: __overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
+			cs-gpios = <&gpio 18 1>;
+			status = "okay";
+
+			spidev1_0: spidev@0 {
+				compatible = "spidev";
+				reg = <0>;      /* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&aux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&spi1_cs_pins>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs0_spidev = <&spidev1_0>,"status";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/spi1-2cs-overlay.dts
@@ -0,0 +1,69 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			spi1_pins: spi1_pins {
+				brcm,pins = <19 20 21>;
+				brcm,function = <3>; /* alt4 */
+			};
+
+			spi1_cs_pins: spi1_cs_pins {
+				brcm,pins = <18 17>;
+				brcm,function = <1>; /* output */
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi1>;
+		frag1: __overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
+			cs-gpios = <&gpio 18 1>, <&gpio 17 1>;
+			status = "okay";
+
+			spidev1_0: spidev@0 {
+				compatible = "spidev";
+				reg = <0>;      /* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+
+			spidev1_1: spidev@1 {
+				compatible = "spidev";
+				reg = <1>;      /* CE1 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&aux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&spi1_cs_pins>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs1_pin  = <&spi1_cs_pins>,"brcm,pins:4",
+			   <&frag1>,"cs-gpios:16";
+		cs0_spidev = <&spidev1_0>,"status";
+		cs1_spidev = <&spidev1_1>,"status";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/spi1-3cs-overlay.dts
@@ -0,0 +1,81 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			spi1_pins: spi1_pins {
+				brcm,pins = <19 20 21>;
+				brcm,function = <3>; /* alt4 */
+			};
+
+			spi1_cs_pins: spi1_cs_pins {
+				brcm,pins = <18 17 16>;
+				brcm,function = <1>; /* output */
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi1>;
+		frag1: __overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi1_pins &spi1_cs_pins>;
+			cs-gpios = <&gpio 18 1>, <&gpio 17 1>, <&gpio 16 1>;
+			status = "okay";
+
+			spidev1_0: spidev@0 {
+				compatible = "spidev";
+				reg = <0>;      /* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+
+			spidev1_1: spidev@1 {
+				compatible = "spidev";
+				reg = <1>;      /* CE1 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+
+			spidev1_2: spidev@2 {
+				compatible = "spidev";
+				reg = <2>;      /* CE2 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&aux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&spi1_cs_pins>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs1_pin  = <&spi1_cs_pins>,"brcm,pins:4",
+			   <&frag1>,"cs-gpios:16";
+		cs2_pin  = <&spi1_cs_pins>,"brcm,pins:8",
+			   <&frag1>,"cs-gpios:28";
+		cs0_spidev = <&spidev1_0>,"status";
+		cs1_spidev = <&spidev1_1>,"status";
+		cs2_spidev = <&spidev1_2>,"status";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/spi2-1cs-overlay.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			spi2_pins: spi2_pins {
+				brcm,pins = <40 41 42>;
+				brcm,function = <3>; /* alt4 */
+			};
+
+			spi2_cs_pins: spi2_cs_pins {
+				brcm,pins = <43>;
+				brcm,function = <1>; /* output */
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi2>;
+		frag1: __overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi2_pins &spi2_cs_pins>;
+			cs-gpios = <&gpio 43 1>;
+			status = "okay";
+
+			spidev2_0: spidev@0 {
+				compatible = "spidev";
+				reg = <0>;      /* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&aux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&spi2_cs_pins>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs0_spidev = <&spidev2_0>,"status";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/spi2-2cs-overlay.dts
@@ -0,0 +1,69 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			spi2_pins: spi2_pins {
+				brcm,pins = <40 41 42>;
+				brcm,function = <3>; /* alt4 */
+			};
+
+			spi2_cs_pins: spi2_cs_pins {
+				brcm,pins = <43 44>;
+				brcm,function = <1>; /* output */
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi2>;
+		frag1: __overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi2_pins &spi2_cs_pins>;
+			cs-gpios = <&gpio 43 1>, <&gpio 44 1>;
+			status = "okay";
+
+			spidev2_0: spidev@0 {
+				compatible = "spidev";
+				reg = <0>;      /* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+
+			spidev2_1: spidev@1 {
+				compatible = "spidev";
+				reg = <1>;      /* CE1 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&aux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&spi2_cs_pins>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs1_pin  = <&spi2_cs_pins>,"brcm,pins:4",
+			   <&frag1>,"cs-gpios:16";
+		cs0_spidev = <&spidev2_0>,"status";
+		cs1_spidev = <&spidev2_1>,"status";
+	};
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/spi2-3cs-overlay.dts
@@ -0,0 +1,81 @@
+/dts-v1/;
+/plugin/;
+
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&gpio>;
+		__overlay__ {
+			spi2_pins: spi2_pins {
+				brcm,pins = <40 41 42>;
+				brcm,function = <3>; /* alt4 */
+			};
+
+			spi2_cs_pins: spi2_cs_pins {
+				brcm,pins = <43 44 45>;
+				brcm,function = <1>; /* output */
+			};
+		};
+	};
+
+	fragment@1 {
+		target = <&spi2>;
+		frag1: __overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&spi2_pins &spi2_cs_pins>;
+			cs-gpios = <&gpio 43 1>, <&gpio 44 1>, <&gpio 45 1>;
+			status = "okay";
+
+			spidev2_0: spidev@0 {
+				compatible = "spidev";
+				reg = <0>;      /* CE0 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+
+			spidev2_1: spidev@1 {
+				compatible = "spidev";
+				reg = <1>;      /* CE1 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+
+			spidev2_2: spidev@2 {
+				compatible = "spidev";
+				reg = <2>;      /* CE2 */
+				#address-cells = <1>;
+				#size-cells = <0>;
+				spi-max-frequency = <500000>;
+				status = "okay";
+			};
+		};
+	};
+
+	fragment@2 {
+		target = <&aux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	__overrides__ {
+		cs0_pin  = <&spi2_cs_pins>,"brcm,pins:0",
+			   <&frag1>,"cs-gpios:4";
+		cs1_pin  = <&spi2_cs_pins>,"brcm,pins:4",
+			   <&frag1>,"cs-gpios:16";
+		cs2_pin  = <&spi2_cs_pins>,"brcm,pins:8",
+			   <&frag1>,"cs-gpios:28";
+		cs0_spidev = <&spidev2_0>,"status";
+		cs1_spidev = <&spidev2_1>,"status";
+		cs2_spidev = <&spidev2_2>,"status";
+	};
+};
--- a/arch/arm/configs/bcm2709_defconfig
+++ b/arch/arm/configs/bcm2709_defconfig
@@ -601,6 +601,7 @@ CONFIG_I2C_BCM2708=m
 CONFIG_I2C_GPIO=m
 CONFIG_SPI=y
 CONFIG_SPI_BCM2835=m
+CONFIG_SPI_BCM2835AUX=m
 CONFIG_SPI_SPIDEV=y
 CONFIG_PPS=m
 CONFIG_PPS_CLIENT_LDISC=m
--- a/arch/arm/configs/bcmrpi_defconfig
+++ b/arch/arm/configs/bcmrpi_defconfig
@@ -593,6 +593,7 @@ CONFIG_I2C_BCM2708=m
 CONFIG_I2C_GPIO=m
 CONFIG_SPI=y
 CONFIG_SPI_BCM2835=m
+CONFIG_SPI_BCM2835AUX=m
 CONFIG_SPI_SPIDEV=y
 CONFIG_PPS=m
 CONFIG_PPS_CLIENT_LDISC=m
--- a/drivers/clk/bcm/Makefile
+++ b/drivers/clk/bcm/Makefile
@@ -4,7 +4,7 @@ obj-$(CONFIG_CLK_BCM_KONA)	+= clk-bcm281
 obj-$(CONFIG_CLK_BCM_KONA)	+= clk-bcm21664.o
 obj-$(CONFIG_COMMON_CLK_IPROC)	+= clk-iproc-armpll.o clk-iproc-pll.o clk-iproc-asiu.o
 obj-$(CONFIG_ARCH_BCM2835)$(CONFIG_ARCH_BCM2708)$(CONFIG_ARCH_BCM2709)	+= clk-bcm2835.o
-obj-$(CONFIG_ARCH_BCM2835)	+= clk-bcm2835-aux.o
+obj-$(CONFIG_ARCH_BCM2835)$(CONFIG_ARCH_BCM2708)$(CONFIG_ARCH_BCM2709)	+= clk-bcm2835-aux.o
 obj-$(CONFIG_COMMON_CLK_IPROC)	+= clk-ns2.o
 obj-$(CONFIG_ARCH_BCM_CYGNUS)	+= clk-cygnus.o
 obj-$(CONFIG_ARCH_BCM_NSP)	+= clk-nsp.o
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -90,7 +90,7 @@ config SPI_BCM2835
 
 config SPI_BCM2835AUX
 	tristate "BCM2835 SPI auxiliary controller"
-	depends on ARCH_BCM2835 || COMPILE_TEST
+	depends on ARCH_BCM2835 || ARCH_BCM2708 || ARCH_BCM2709 || COMPILE_TEST
 	depends on GPIOLIB
 	help
 	  This selects a driver for the Broadcom BCM2835 SPI aux master.