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authorSascha Hauer <s.hauer@pengutronix.de>2016-06-13 07:29:57 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2016-06-13 07:29:57 +0200
commita4f4bc65b33164eb8c19bcff9834cc87bcc845bb (patch)
treeef97762be5b614f160e9affddd1bbbec43c007dc /dts/Bindings/rtc
parent83e61900b02965d01f0885e2db2077df35be7f56 (diff)
downloadbarebox-a4f4bc65b33164eb8c19bcff9834cc87bcc845bb.tar.gz
barebox-a4f4bc65b33164eb8c19bcff9834cc87bcc845bb.tar.xz
dts: update to v4.6-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/rtc')
-rw-r--r--dts/Bindings/rtc/alphascale,asm9260-rtc.txt19
-rw-r--r--dts/Bindings/rtc/epson,rx6110.txt39
-rw-r--r--dts/Bindings/rtc/maxim,ds3231.txt37
-rw-r--r--dts/Bindings/rtc/maxim,mcp795.txt11
-rw-r--r--dts/Bindings/rtc/microchip,pic32-rtc.txt21
5 files changed, 127 insertions, 0 deletions
diff --git a/dts/Bindings/rtc/alphascale,asm9260-rtc.txt b/dts/Bindings/rtc/alphascale,asm9260-rtc.txt
new file mode 100644
index 000000000..76ebca568
--- /dev/null
+++ b/dts/Bindings/rtc/alphascale,asm9260-rtc.txt
@@ -0,0 +1,19 @@
+* Alphascale asm9260 SoC Real Time Clock
+
+Required properties:
+- compatible: Should be "alphascale,asm9260-rtc"
+- reg: Physical base address of the controller and length
+ of memory mapped region.
+- interrupts: IRQ line for the RTC.
+- clocks: Reference to the clock entry.
+- clock-names: should contain:
+ * "ahb" for the SoC RTC clock
+
+Example:
+rtc0: rtc@800a0000 {
+ compatible = "alphascale,asm9260-rtc";
+ reg = <0x800a0000 0x100>;
+ clocks = <&acc CLKID_AHB_RTC>;
+ clock-names = "ahb";
+ interrupts = <2>;
+};
diff --git a/dts/Bindings/rtc/epson,rx6110.txt b/dts/Bindings/rtc/epson,rx6110.txt
new file mode 100644
index 000000000..3dc313e01
--- /dev/null
+++ b/dts/Bindings/rtc/epson,rx6110.txt
@@ -0,0 +1,39 @@
+Epson RX6110 Real Time Clock
+============================
+
+The Epson RX6110 can be used with SPI or I2C busses. The kind of
+bus depends on the SPISEL pin and can not be configured via software.
+
+I2C mode
+--------
+
+Required properties:
+ - compatible: should be: "epson,rx6110"
+ - reg : the I2C address of the device for I2C
+
+Example:
+
+ rtc: rtc@32 {
+ compatible = "epson,rx6110"
+ reg = <0x32>;
+ };
+
+SPI mode
+--------
+
+Required properties:
+ - compatible: should be: "epson,rx6110"
+ - reg: chip select number
+ - spi-cs-high: RX6110 needs chipselect high
+ - spi-cpha: RX6110 works with SPI shifted clock phase
+ - spi-cpol: RX6110 works with SPI inverse clock polarity
+
+Example:
+
+ rtc: rtc@3 {
+ compatible = "epson,rx6110"
+ reg = <3>
+ spi-cs-high;
+ spi-cpha;
+ spi-cpol;
+ };
diff --git a/dts/Bindings/rtc/maxim,ds3231.txt b/dts/Bindings/rtc/maxim,ds3231.txt
new file mode 100644
index 000000000..ddef330d2
--- /dev/null
+++ b/dts/Bindings/rtc/maxim,ds3231.txt
@@ -0,0 +1,37 @@
+* Maxim DS3231 Real Time Clock
+
+Required properties:
+see: Documentation/devicetree/bindings/i2c/trivial-devices.txt
+
+Optional property:
+- #clock-cells: Should be 1.
+- clock-output-names:
+ overwrite the default clock names "ds3231_clk_sqw" and "ds3231_clk_32khz".
+
+Each clock is assigned an identifier and client nodes can use this identifier
+to specify the clock which they consume. Following indices are allowed:
+ - 0: square-wave output on the SQW pin
+ - 1: square-wave output on the 32kHz pin
+
+- interrupts: rtc alarm/event interrupt. When this property is selected,
+ clock on the SQW pin cannot be used.
+
+Example:
+
+ds3231: ds3231@51 {
+ compatible = "maxim,ds3231";
+ reg = <0x68>;
+ #clock-cells = <1>;
+};
+
+device1 {
+...
+ clocks = <&ds3231 0>;
+...
+};
+
+device2 {
+...
+ clocks = <&ds3231 1>;
+...
+};
diff --git a/dts/Bindings/rtc/maxim,mcp795.txt b/dts/Bindings/rtc/maxim,mcp795.txt
new file mode 100644
index 000000000..a59fdd8c2
--- /dev/null
+++ b/dts/Bindings/rtc/maxim,mcp795.txt
@@ -0,0 +1,11 @@
+* Maxim MCP795 SPI Serial Real-Time Clock
+
+Required properties:
+- compatible: Should contain "maxim,mcp795".
+- reg: SPI address for chip
+
+Example:
+ mcp795: rtc@0 {
+ compatible = "maxim,mcp795";
+ reg = <0>;
+ };
diff --git a/dts/Bindings/rtc/microchip,pic32-rtc.txt b/dts/Bindings/rtc/microchip,pic32-rtc.txt
new file mode 100644
index 000000000..180b7144b
--- /dev/null
+++ b/dts/Bindings/rtc/microchip,pic32-rtc.txt
@@ -0,0 +1,21 @@
+* Microchip PIC32 Real Time Clock and Calendar
+
+The RTCC keeps time in hours, minutes, and seconds, and one half second. It
+provides a calendar in weekday, date, month, and year. It also provides a
+configurable alarm.
+
+Required properties:
+- compatible: should be: "microchip,pic32mzda-rtc"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: RTC alarm/event interrupt
+- clocks: clock phandle
+
+Example:
+
+ rtc: rtc@1f8c0000 {
+ compatible = "microchip,pic32mzda-rtc";
+ reg = <0x1f8c0000 0x60>;
+ interrupts = <166 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&PBCLK6>;
+ };