diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0570-BCM270X_DT-Add-spi0-cs-overlay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0570-BCM270X_DT-Add-spi0-cs-overlay.patch | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0570-BCM270X_DT-Add-spi0-cs-overlay.patch b/target/linux/brcm2708/patches-4.4/0570-BCM270X_DT-Add-spi0-cs-overlay.patch deleted file mode 100644 index 7dd62a7741..0000000000 --- a/target/linux/brcm2708/patches-4.4/0570-BCM270X_DT-Add-spi0-cs-overlay.patch +++ /dev/null @@ -1,81 +0,0 @@ -From 03e5edc82cd5df9f0fc6704d59a6f9aee3ef3552 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Mon, 16 Jan 2017 14:53:12 +0000 -Subject: [PATCH] BCM270X_DT: Add spi0-cs overlay - -The spi0-cs overlay allows the software chip selectts to be modified -using the cs0_pin and cs1_pin parameters. ---- - arch/arm/boot/dts/overlays/Makefile | 1 + - arch/arm/boot/dts/overlays/README | 9 +++++++- - arch/arm/boot/dts/overlays/spi0-cs-overlay.dts | 29 ++++++++++++++++++++++++++ - 3 files changed, 38 insertions(+), 1 deletion(-) - create mode 100644 arch/arm/boot/dts/overlays/spi0-cs-overlay.dts - ---- a/arch/arm/boot/dts/overlays/Makefile -+++ b/arch/arm/boot/dts/overlays/Makefile -@@ -93,6 +93,7 @@ dtbo-$(RPI_DT_OVERLAYS) += smi-dev.dtbo - dtbo-$(RPI_DT_OVERLAYS) += smi-nand.dtbo - dtbo-$(RPI_DT_OVERLAYS) += spi-gpio35-39.dtbo - dtbo-$(RPI_DT_OVERLAYS) += spi-rtc.dtbo -+dtbo-$(RPI_DT_OVERLAYS) += spi0-cs.dtbo - dtbo-$(RPI_DT_OVERLAYS) += spi0-hw-cs.dtbo - dtbo-$(RPI_DT_OVERLAYS) += spi1-1cs.dtbo - dtbo-$(RPI_DT_OVERLAYS) += spi1-2cs.dtbo ---- a/arch/arm/boot/dts/overlays/README -+++ b/arch/arm/boot/dts/overlays/README -@@ -1131,7 +1131,7 @@ Params: <None> - - - Name: spi-gpio35-39 --Info: move SPI function block to GPIO 35 to 39 -+Info: Move SPI function block to GPIO 35 to 39 - Load: dtoverlay=spi-gpio35-39 - Params: <None> - -@@ -1142,6 +1142,13 @@ Load: dtoverlay=spi-rtc,<param>=<val> - Params: pcf2123 Select the PCF2123 device - - -+Name: spi0-cs -+Info: Allows the (software) CS pins for SPI0 to be changed -+Load: dtoverlay=spi0-cs,<param>=<val> -+Params: cs0_pin GPIO pin for CS0 (default 8) -+ cs1_pin GPIO pin for CS1 (default 7) -+ -+ - Name: spi0-hw-cs - Info: Re-enables hardware CS/CE (chip selects) for SPI0 - Load: dtoverlay=spi0-hw-cs ---- /dev/null -+++ b/arch/arm/boot/dts/overlays/spi0-cs-overlay.dts -@@ -0,0 +1,29 @@ -+/dts-v1/; -+/plugin/; -+ -+ -+/ { -+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709"; -+ -+ fragment@0 { -+ target = <&spi0_cs_pins>; -+ frag0: __overlay__ { -+ brcm,pins = <8 7>; -+ }; -+ }; -+ -+ fragment@1 { -+ target = <&spi0>; -+ frag1: __overlay__ { -+ cs-gpios = <&gpio 8 1>, <&gpio 7 1>; -+ status = "okay"; -+ }; -+ }; -+ -+ __overrides__ { -+ cs0_pin = <&frag0>,"brcm,pins:0", -+ <&frag1>,"cs-gpios:4"; -+ cs1_pin = <&frag0>,"brcm,pins:4", -+ <&frag1>,"cs-gpios:16"; -+ }; -+}; |