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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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      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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