+++ /dev/null
-From 347b13e71792301011d09442c6150d6aec8d89e0 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Wed, 11 May 2016 15:38:04 +0100
-Subject: [PATCH 342/423] BCM270X_DT: Add umbrella I2C Mux overlay i2c-mux
-
-This overlay supports a range of I2C multiplexers - PCA9542 (2 ports),
-PCA9545 (4 ports) and PCA9548 (8 ports).
-
-Also remove the dedicated i2c-mux-9548a overlays since it is no longer
-needed.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- arch/arm/boot/dts/overlays/Makefile | 2 +-
- arch/arm/boot/dts/overlays/README | 17 ++-
- arch/arm/boot/dts/overlays/i2c-mux-overlay.dts | 138 +++++++++++++++++++++
- .../boot/dts/overlays/i2c-mux-pca9548a-overlay.dts | 67 ----------
- 4 files changed, 152 insertions(+), 72 deletions(-)
- create mode 100644 arch/arm/boot/dts/overlays/i2c-mux-overlay.dts
- delete mode 100644 arch/arm/boot/dts/overlays/i2c-mux-pca9548a-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -34,7 +34,7 @@ dtbo-$(RPI_DT_OVERLAYS) += hy28a.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += hy28b.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += i2c-rtc.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += i2c-gpio.dtbo
--dtbo-$(RPI_DT_OVERLAYS) += i2c-mux-pca9548a.dtbo
-+dtbo-$(RPI_DT_OVERLAYS) += i2c-mux.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += i2c-pwm-pca9685a.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += i2c0-bcm2708.dtbo
- dtbo-$(RPI_DT_OVERLAYS) += i2c1-bcm2708.dtbo
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -421,10 +421,19 @@ Params: i2c_gpio_sda GPIO use
- (default "2" = ~100kHz)
-
-
--Name: i2c-mux-pca9548a
--Info: Adds support for an NXP PCA9548A I2C multiplexer on i2c_arm
--Load: dtoverlay=i2c-mux-pca9548a,<param>=<val>
--Params: addr I2C address of PCA9548A (default 0x70)
-+Name: i2c-mux
-+Info: Adds support for a number of I2C bus multiplexers on i2c_arm
-+Load: dtoverlay=i2c-mux,<param>=<val>
-+Params: pca9542 Select the NXP PCA9542 device
-+
-+ pca9545 Select the NXP PCA9545 device
-+
-+ pca9548 Select the NXP PCA9548 device
-+
-+ addr Change I2C address of the device (default 0x70)
-+
-+
-+[ The i2c-mux-pca9548a overlay has been deleted. See i2c-mux. ]
-
-
- Name: i2c-pwm-pca9685a
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/i2c-mux-overlay.dts
-@@ -0,0 +1,138 @@
-+// Umbrella I2C Mux overlay
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/{
-+ compatible = "brcm,bcm2708";
-+
-+ fragment@0 {
-+ target = <&i2c_arm>;
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ status = "okay";
-+
-+ pca9542: mux@70 {
-+ compatible = "nxp,pca9542";
-+ reg = <0x70>;
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ i2c@0 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <0>;
-+ };
-+ i2c@1 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <1>;
-+ };
-+ };
-+ };
-+ };
-+
-+ fragment@1 {
-+ target = <&i2c_arm>;
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ status = "okay";
-+
-+ pca9545: mux@70 {
-+ compatible = "nxp,pca9545";
-+ reg = <0x70>;
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ i2c@0 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <0>;
-+ };
-+ i2c@1 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <1>;
-+ };
-+ i2c@2 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <2>;
-+ };
-+ i2c@3 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <3>;
-+ };
-+ };
-+ };
-+ };
-+
-+ fragment@2 {
-+ target = <&i2c_arm>;
-+ __dormant__ {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ status = "okay";
-+
-+ pca9548: mux@70 {
-+ compatible = "nxp,pca9548";
-+ reg = <0x70>;
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ i2c@0 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <0>;
-+ };
-+ i2c@1 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <1>;
-+ };
-+ i2c@2 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <2>;
-+ };
-+ i2c@3 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <3>;
-+ };
-+ i2c@4 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <4>;
-+ };
-+ i2c@5 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <5>;
-+ };
-+ i2c@6 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <6>;
-+ };
-+ i2c@7 {
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+ reg = <7>;
-+ };
-+ };
-+ };
-+ };
-+
-+ __overrides__ {
-+ pca9542 = <0>, "+0";
-+ pca9545 = <0>, "+1";
-+ pca9548 = <0>, "+2";
-+
-+ addr = <&pca9545>,"reg:0",
-+ <&pca9548>,"reg:0";
-+ };
-+};
---- a/arch/arm/boot/dts/overlays/i2c-mux-pca9548a-overlay.dts
-+++ /dev/null
-@@ -1,67 +0,0 @@
--// Definitions for NXP PCA9548A I2C mux on ARM I2C bus.
--/dts-v1/;
--/plugin/;
--
--/{
-- compatible = "brcm,bcm2708";
--
-- fragment@0 {
-- target = <&i2c_arm>;
-- __overlay__ {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- status = "okay";
--
-- i2cmux: mux@70 {
-- compatible = "nxp,pca9548";
-- reg = <0x70>;
-- #address-cells = <1>;
-- #size-cells = <0>;
--
-- i2c@0 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <0>;
-- };
-- i2c@1 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <1>;
-- };
-- i2c@2 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <2>;
-- };
-- i2c@3 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <3>;
-- };
-- i2c@4 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <4>;
-- };
-- i2c@5 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <5>;
-- };
-- i2c@6 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <6>;
-- };
-- i2c@7 {
-- #address-cells = <1>;
-- #size-cells = <0>;
-- reg = <7>;
-- };
-- };
-- };
-- };
-- __overrides__ {
-- addr = <&i2cmux>,"reg:0";
-- };
--};
projects / openwrt / openwrt.git / blobdiff