diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0157-Aux-SPI-1-2-implementation.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0157-Aux-SPI-1-2-implementation.patch | 700 |
1 files changed, 700 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0157-Aux-SPI-1-2-implementation.patch b/target/linux/brcm2708/patches-4.4/0157-Aux-SPI-1-2-implementation.patch new file mode 100644 index 0000000000..54a9fefb69 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0157-Aux-SPI-1-2-implementation.patch @@ -0,0 +1,700 @@ +From 2cf8e02af4645b90aa63f8cdbd0cb4403e2bee8f Mon Sep 17 00:00:00 2001 +From: Fraser <github@frasersdev.net> +Date: Tue, 23 Feb 2016 10:04:37 +1100 +Subject: [PATCH 157/232] 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. |