From: Antony Pavlov <antonynpavlov@gmail.com>
To: barebox@lists.infradead.org
Subject: [PATCH 5/5] sandbox: dts: add i2c and spi libftdi1 bit-bang example
Date: Tue, 10 Oct 2017 15:26:31 +0300 [thread overview]
Message-ID: <20171010122631.9421-6-antonynpavlov@gmail.com> (raw)
In-Reply-To: <20171010122631.9421-1-antonynpavlov@gmail.com>
Usage:
barebox$ make sandbox_defconfig
barebox$ sed -i "s/# CONFIG_GPIO_LIBFTDI1.*$/CONFIG_GPIO_LIBFTDI1=y/" .config
# edit arch/sandbox/dts/sandbox.dts if necessary
barebox$ make
barebox$ sudo ./barebox -d arch/sandbox/dts/sandbox.dtb
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
arch/sandbox/dts/sandbox.dts | 47 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts
index 2595aa13fa..44c7f92237 100644
--- a/arch/sandbox/dts/sandbox.dts
+++ b/arch/sandbox/dts/sandbox.dts
@@ -1,7 +1,54 @@
/dts-v1/;
#include "skeleton.dtsi"
+#include <dt-bindings/gpio/gpio.h>
/ {
+ gpio0: gpio@0 {
+ compatible = "barebox,libftdi1-gpio";
+ /* use ACBUS[7:0] */
+ gpio-controller;
+ #gpio-cells = <2>;
+ status = "okay";
+ };
+ spi0 {
+ compatible = "spi-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio-sck = <&gpio0 0 GPIO_ACTIVE_HIGH>;
+ gpio-mosi = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+ gpio-miso = <&gpio0 2 GPIO_ACTIVE_HIGH>;
+ cs-gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
+
+ num-chipselects = <1>;
+
+ status = "disabled";
+
+ m25p128@0 {
+ compatible = "m25p128", "jedec,spi-nor";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ };
+ };
+
+ i2c0: i2c0 {
+ compatible = "i2c-gpio";
+ gpios = <&gpio0 4 GPIO_ACTIVE_HIGH /* sda */
+ &gpio0 5 GPIO_ACTIVE_HIGH /* scl */
+ >;
+ i2c-gpio,sda-open-drain;
+ i2c-gpio,scl-open-drain;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ status = "disabled";
+
+ eeprom: eeprom@50 {
+ compatible = "atmel,24c32";
+ reg = <0x50>;
+ };
+ };
};
--
2.14.1
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prev parent reply other threads:[~2017-10-10 12:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-10 12:26 [PATCH 0/5] sandbox: add gpio support with libftdi1 Antony Pavlov
2017-10-10 12:26 ` [PATCH 1/5] sandbox: avoid symbol conflict for {open,read,close}dir Antony Pavlov
2017-10-10 12:26 ` [PATCH 2/5] sandbox: add gpio support with libftdi1 Antony Pavlov
2017-10-16 7:56 ` Sascha Hauer
2017-10-10 12:26 ` [PATCH 3/5] sandbox: parse libftdi options Antony Pavlov
2017-10-16 8:21 ` Sascha Hauer
2017-10-16 14:10 ` Antony Pavlov
2017-10-16 14:06 ` Sascha Hauer
2017-10-19 11:55 ` Antony Pavlov
2017-10-19 11:52 ` Sascha Hauer
2017-10-10 12:26 ` [PATCH 4/5] sandbox_defconfig: enable gpio, spi, i2c and led stuff Antony Pavlov
2017-10-10 12:26 ` Antony Pavlov [this message]
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