diff options
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
9 files changed, 156 insertions, 24 deletions
diff --git a/Documentation/devicetree/bindings/rtc/dw-apb.txt b/Documentation/devicetree/bindings/rtc/dw-apb.txt index eb2327b2bdb..c703d51abb6 100644 --- a/Documentation/devicetree/bindings/rtc/dw-apb.txt +++ b/Documentation/devicetree/bindings/rtc/dw-apb.txt @@ -1,7 +1,10 @@ * Designware APB timer Required properties: -- compatible: "snps,dw-apb-timer-sp" or "snps,dw-apb-timer-osc" +- compatible: One of: + "snps,dw-apb-timer" + "snps,dw-apb-timer-sp" <DEPRECATED> + "snps,dw-apb-timer-osc" <DEPRECATED> - reg: physical base address of the controller and length of memory mapped region. - interrupts: IRQ line for the timer. @@ -20,25 +23,10 @@ systems may use one. Example: - - timer1: timer@ffc09000 { - compatible = "snps,dw-apb-timer-sp"; - interrupts = <0 168 4>; - clock-frequency = <200000000>; - reg = <0xffc09000 0x1000>; - }; - - timer2: timer@ffd00000 { - compatible = "snps,dw-apb-timer-osc"; - interrupts = <0 169 4>; - clock-frequency = <200000000>; - reg = <0xffd00000 0x1000>; - }; - - timer3: timer@ffe00000 { - compatible = "snps,dw-apb-timer-osc"; - interrupts = <0 170 4>; - reg = <0xffe00000 0x1000>; - clocks = <&timer_clk>, <&timer_pclk>; - clock-names = "timer", "pclk"; - }; + timer@ffe00000 { + compatible = "snps,dw-apb-timer"; + interrupts = <0 170 4>; + reg = <0xffe00000 0x1000>; + clocks = <&timer_clk>, <&timer_pclk>; + clock-names = "timer", "pclk"; + }; diff --git a/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt new file mode 100644 index 00000000000..5c199ee044c --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/haoyu,hym8563.txt @@ -0,0 +1,30 @@ +Haoyu Microelectronics HYM8563 Real Time Clock + +The HYM8563 provides basic rtc and alarm functionality +as well as a clock output of up to 32kHz. + +Required properties: +- compatible: should be: "haoyu,hym8563" +- reg: i2c address +- interrupts: rtc alarm/event interrupt +- #clock-cells: the value should be 0 + +Optional properties: +- clock-output-names: From common clock binding + +Example: + +hym8563: hym8563@51 { + compatible = "haoyu,hym8563"; + reg = <0x51>; + + interrupts = <13 IRQ_TYPE_EDGE_FALLING>; + + #clock-cells = <0>; +}; + +device { +... + clocks = <&hym8563>; +... +}; diff --git a/Documentation/devicetree/bindings/rtc/maxim,ds1742.txt b/Documentation/devicetree/bindings/rtc/maxim,ds1742.txt new file mode 100644 index 00000000000..d0f937c355b --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/maxim,ds1742.txt @@ -0,0 +1,12 @@ +* Maxim (Dallas) DS1742/DS1743 Real Time Clock + +Required properties: +- compatible: Should contain "maxim,ds1742". +- reg: Physical base address of the RTC and length of memory + mapped region. + +Example: + rtc: rtc@10000000 { + compatible = "maxim,ds1742"; + reg = <0x10000000 0x800>; + }; diff --git a/Documentation/devicetree/bindings/rtc/moxa,moxart-rtc.txt b/Documentation/devicetree/bindings/rtc/moxa,moxart-rtc.txt new file mode 100644 index 00000000000..c9d3ac1477f --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/moxa,moxart-rtc.txt @@ -0,0 +1,17 @@ +MOXA ART real-time clock + +Required properties: + +- compatible : Should be "moxa,moxart-rtc" +- gpio-rtc-sclk : RTC sclk gpio, with zero flags +- gpio-rtc-data : RTC data gpio, with zero flags +- gpio-rtc-reset : RTC reset gpio, with zero flags + +Example: + + rtc: rtc { + compatible = "moxa,moxart-rtc"; + gpio-rtc-sclk = <&gpio 5 0>; + gpio-rtc-data = <&gpio 6 0>; + gpio-rtc-reset = <&gpio 7 0>; + }; diff --git a/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt index 93f45e9dce7..652d1ff2e8b 100644 --- a/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt @@ -9,6 +9,8 @@ Required properties: - compatible : should be "nvidia,tegra20-rtc". - reg : Specifies base physical address and size of the registers. - interrupts : A single interrupt specifier. +- clocks : Must contain one entry, for the module clock. + See ../clocks/clock-bindings.txt for details. Example: @@ -16,4 +18,5 @@ timer { compatible = "nvidia,tegra20-rtc"; reg = <0x7000e000 0x100>; interrupts = <0 2 0x04>; + clocks = <&tegra_car 4>; }; diff --git a/Documentation/devicetree/bindings/rtc/rtc-omap.txt b/Documentation/devicetree/bindings/rtc/rtc-omap.txt index b47aa415c82..5a0f02d34d9 100644 --- a/Documentation/devicetree/bindings/rtc/rtc-omap.txt +++ b/Documentation/devicetree/bindings/rtc/rtc-omap.txt @@ -1,7 +1,11 @@ TI Real Time Clock Required properties: -- compatible: "ti,da830-rtc" +- compatible: + - "ti,da830-rtc" - for RTC IP used similar to that on DA8xx SoC family. + - "ti,am3352-rtc" - for RTC IP used similar to that on AM335x SoC family. + This RTC IP has special WAKE-EN Register to enable + Wakeup generation for event Alarm. - reg: Address range of rtc register set - interrupts: rtc timer, alarm interrupts in order - interrupt-parent: phandle for the interrupt controller diff --git a/Documentation/devicetree/bindings/rtc/rtc-palmas.txt b/Documentation/devicetree/bindings/rtc/rtc-palmas.txt new file mode 100644 index 00000000000..adbccc0a51e --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-palmas.txt @@ -0,0 +1,33 @@ +Palmas RTC controller bindings + +Required properties: +- compatible: + - "ti,palmas-rtc" for palma series of the RTC controller +- interrupt-parent: Parent interrupt device, must be handle of palmas node. +- interrupts: Interrupt number of RTC submodule on device. + +Optional properties: + +- ti,backup-battery-chargeable: The Palmas series device like TPS65913 or + TPS80036 supports the backup battery for powering the RTC when main + battery is removed or in very low power state. The backup battery + can be chargeable or non-chargeable. This flag will tells whether + battery is chargeable or not. If charging battery then driver can + enable the charging. +- ti,backup-battery-charge-high-current: Enable high current charging in + backup battery. Device supports the < 100mA and > 100mA charging. + The high current will be > 100mA. Absence of this property will + charge battery to lower current i.e. < 100mA. + +Example: + palmas: tps65913@58 { + ... + palmas_rtc: rtc { + compatible = "ti,palmas-rtc"; + interrupt-parent = <&palmas>; + interrupts = <8 0>; + ti,backup-battery-chargeable; + ti,backup-battery-charge-high-current; + }; + ... + }; diff --git a/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt b/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt new file mode 100644 index 00000000000..6983aad376c --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt @@ -0,0 +1,17 @@ +* sun4i/sun7i Real Time Clock + +RTC controller for the Allwinner A10/A20 + +Required properties: +- compatible : Should be "allwinner,sun4i-a10-rtc" or "allwinner,sun7i-a20-rtc" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: IRQ line for the RTC. + +Example: + +rtc: rtc@01c20d00 { + compatible = "allwinner,sun4i-a10-rtc"; + reg = <0x01c20d00 0x20>; + interrupts = <24>; +}; diff --git a/Documentation/devicetree/bindings/rtc/xgene-rtc.txt b/Documentation/devicetree/bindings/rtc/xgene-rtc.txt new file mode 100644 index 00000000000..fd195c35844 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/xgene-rtc.txt @@ -0,0 +1,28 @@ +* APM X-Gene Real Time Clock + +RTC controller for the APM X-Gene Real Time Clock + +Required properties: +- compatible : Should be "apm,xgene-rtc" +- reg: physical base address of the controller and length of memory mapped + region. +- interrupts: IRQ line for the RTC. +- #clock-cells: Should be 1. +- clocks: Reference to the clock entry. + +Example: + +rtcclk: rtcclk { + compatible = "fixed-clock"; + #clock-cells = <1>; + clock-frequency = <100000000>; + clock-output-names = "rtcclk"; +}; + +rtc: rtc@10510000 { + compatible = "apm,xgene-rtc"; + reg = <0x0 0x10510000 0x0 0x400>; + interrupts = <0x0 0x46 0x4>; + #clock-cells = <1>; + clocks = <&rtcclk 0>; +}; |