diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0161-DT-Add-overlays-to-configure-I2C-pins.patch')
-rw-r--r-- | target/linux/brcm2708/patches-4.4/0161-DT-Add-overlays-to-configure-I2C-pins.patch | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0161-DT-Add-overlays-to-configure-I2C-pins.patch b/target/linux/brcm2708/patches-4.4/0161-DT-Add-overlays-to-configure-I2C-pins.patch deleted file mode 100644 index eddbdf8707..0000000000 --- a/target/linux/brcm2708/patches-4.4/0161-DT-Add-overlays-to-configure-I2C-pins.patch +++ /dev/null @@ -1,134 +0,0 @@ -From ada7795b8734bd5d66ff9e7499fff148f0e17510 Mon Sep 17 00:00:00 2001 -From: Dave Stevenson <6by9@users.noreply.github.com> -Date: Mon, 8 Feb 2016 23:49:41 +0000 -Subject: [PATCH] DT: Add overlays to configure I2C pins - -Lifted from -https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=120938&p=825883 -so not claiming this to be my own work. -Adds overlays i2c0-bcm2708 and i2c1-bcm2708 that allow the pin -allocations for i2c-0 and i2c-1 to be changed. ---- - arch/arm/boot/dts/overlays/Makefile | 2 ++ - arch/arm/boot/dts/overlays/README | 16 ++++++++++ - .../arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts | 36 +++++++++++++++++++++ - .../arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts | 37 ++++++++++++++++++++++ - 4 files changed, 91 insertions(+) - create mode 100644 arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts - create mode 100644 arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts - ---- a/arch/arm/boot/dts/overlays/Makefile -+++ b/arch/arm/boot/dts/overlays/Makefile -@@ -29,6 +29,8 @@ dtb-$(RPI_DT_OVERLAYS) += hy28a-overlay. - dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += i2c-rtc-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += i2c-gpio-overlay.dtb -+dtb-$(RPI_DT_OVERLAYS) += i2c0-bcm2708-overlay.dtb -+dtb-$(RPI_DT_OVERLAYS) += i2c1-bcm2708-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += i2s-mmap-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb ---- a/arch/arm/boot/dts/overlays/README -+++ b/arch/arm/boot/dts/overlays/README -@@ -371,6 +371,22 @@ Params: ds1307 Select t - pcf8563 Select the PCF8563 device - - -+Name: i2c0-bcm2708 -+Info: Enable the i2c_bcm2708 driver for the i2c0 bus -+Load: dtoverlay=i2c0-bcm2708,<param>=<val> -+Params: sda0_pin GPIO pin for SDA0 (0, 28 [or 44] - default 0) -+ scl0_pin GPIO pin for SCL0 (1, 29 [or 45] - default 1) -+ -+ -+Name: i2c1-bcm2708 -+Info: Enable the i2c_bcm2708 driver for the i2c1 bus -+Load: dtoverlay=i2c1-bcm2708,<param>=<val> -+Params: sda1_pin GPIO pin for SDA1 (2 or 44 - default 2) -+ scl1_pin GPIO pin for SCL1 (3 or 45 - default 3) -+ pin_func Alternative pin function (4 (alt0), 6 (alt2) - -+ default 4) -+ -+ - Name: i2s-mmap - Info: Enables mmap support in the bcm2708-i2s driver - Load: dtoverlay=i2s-mmap ---- /dev/null -+++ b/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts -@@ -0,0 +1,36 @@ -+/* -+ * Device tree overlay for i2c_bcm2708, i2c0 bus -+ * -+ * Compile: -+ * dtc -@ -I dts -O dtb -o i2c0-bcm2708-overlay.dtb i2c0-bcm2708-overlay.dts -+ */ -+ -+/dts-v1/; -+/plugin/; -+ -+/{ -+ compatible = "brcm,bcm2708"; -+ -+ fragment@0 { -+ target = <&i2c0>; -+ __overlay__ { -+ pinctrl-0 = <&i2c0_pins>; -+ status = "okay"; -+ }; -+ }; -+ -+ fragment@1 { -+ target = <&gpio>; -+ __overlay__ { -+ i2c0_pins: i2c0 { -+ brcm,pins = <0 1>; -+ brcm,function = <4>; /* alt0 */ -+ }; -+ }; -+ }; -+ -+ __overrides__ { -+ sda0_pin = <&i2c0_pins>,"brcm,pins:0"; -+ scl0_pin = <&i2c0_pins>,"brcm,pins:4"; -+ }; -+}; ---- /dev/null -+++ b/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts -@@ -0,0 +1,37 @@ -+/* -+ * Device tree overlay for i2c_bcm2708, i2c1 bus -+ * -+ * Compile: -+ * dtc -@ -I dts -O dtb -o i2c1-bcm2708-overlay.dtb i2c1-bcm2708-overlay.dts -+ */ -+ -+/dts-v1/; -+/plugin/; -+ -+/{ -+ compatible = "brcm,bcm2708"; -+ -+ fragment@0 { -+ target = <&i2c1>; -+ __overlay__ { -+ pinctrl-0 = <&i2c1_pins>; -+ status = "okay"; -+ }; -+ }; -+ -+ fragment@1 { -+ target = <&gpio>; -+ __overlay__ { -+ i2c1_pins: i2c1 { -+ brcm,pins = <2 3>; -+ brcm,function = <4>; /* alt0 */ -+ }; -+ }; -+ }; -+ -+ __overrides__ { -+ sda1_pin = <&i2c1_pins>,"brcm,pins:0"; -+ scl1_pin = <&i2c1_pins>,"brcm,pins:4"; -+ pin_func = <&i2c1_pins>,"brcm,function:0"; -+ }; -+}; |