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authorRob Herring <robh@kernel.org>2018-04-25 22:24:59 +0300
committerRob Herring <robh@kernel.org>2018-04-28 00:56:47 +0300
commit2359ccddc1c3f4752f43cc19b3db189710b15791 (patch)
tree176ed8de6384351f7a901f6109d121bac41d0e24 /Documentation/devicetree/bindings/arm
parent2564fd43f6b24a3fc593c58a714461076943c276 (diff)
downloadlinux-2359ccddc1c3f4752f43cc19b3db189710b15791.tar.xz
dt-bindings: move various timer bindings to timer/ directory
Bindings are supposed to be organized by device class/function. Move bindings for various timers to timer/ binding directory. Cc: Linus Walleij <linus.walleij@linaro.org> Acked-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/arm')
-rw-r--r--Documentation/devicetree/bindings/arm/arch_timer.txt112
-rw-r--r--Documentation/devicetree/bindings/arm/armv7m_systick.txt26
-rw-r--r--Documentation/devicetree/bindings/arm/global_timer.txt27
-rw-r--r--Documentation/devicetree/bindings/arm/mrvl/timer.txt13
-rw-r--r--Documentation/devicetree/bindings/arm/msm/timer.txt47
-rw-r--r--Documentation/devicetree/bindings/arm/omap/timer.txt44
-rw-r--r--Documentation/devicetree/bindings/arm/spear-timer.txt18
-rw-r--r--Documentation/devicetree/bindings/arm/twd.txt53
-rw-r--r--Documentation/devicetree/bindings/arm/ux500/boards.txt2
-rw-r--r--Documentation/devicetree/bindings/arm/vt8500/via,vt8500-timer.txt15
10 files changed, 1 insertions, 356 deletions
diff --git a/Documentation/devicetree/bindings/arm/arch_timer.txt b/Documentation/devicetree/bindings/arm/arch_timer.txt
deleted file mode 100644
index 68301b77e854..000000000000
--- a/Documentation/devicetree/bindings/arm/arch_timer.txt
+++ /dev/null
@@ -1,112 +0,0 @@
-* ARM architected timer
-
-ARM cores may have a per-core architected timer, which provides per-cpu timers,
-or a memory mapped architected timer, which provides up to 8 frames with a
-physical and optional virtual timer per frame.
-
-The per-core architected timer is attached to a GIC to deliver its
-per-processor interrupts via PPIs. The memory mapped timer is attached to a GIC
-to deliver its interrupts via SPIs.
-
-** CP15 Timer node properties:
-
-- compatible : Should at least contain one of
- "arm,armv7-timer"
- "arm,armv8-timer"
-
-- interrupts : Interrupt list for secure, non-secure, virtual and
- hypervisor timers, in that order.
-
-- clock-frequency : The frequency of the main counter, in Hz. Should be present
- only where necessary to work around broken firmware which does not configure
- CNTFRQ on all CPUs to a uniform correct value. Use of this property is
- strongly discouraged; fix your firmware unless absolutely impossible.
-
-- always-on : a boolean property. If present, the timer is powered through an
- always-on power domain, therefore it never loses context.
-
-- fsl,erratum-a008585 : A boolean property. Indicates the presence of
- QorIQ erratum A-008585, which says that reading the counter is
- unreliable unless the same value is returned by back-to-back reads.
- This also affects writes to the tval register, due to the implicit
- counter read.
-
-- hisilicon,erratum-161010101 : A boolean property. Indicates the
- presence of Hisilicon erratum 161010101, which says that reading the
- counters is unreliable in some cases, and reads may return a value 32
- beyond the correct value. This also affects writes to the tval
- registers, due to the implicit counter read.
-
-** Optional properties:
-
-- arm,cpu-registers-not-fw-configured : Firmware does not initialize
- any of the generic timer CPU registers, which contain their
- architecturally-defined reset values. Only supported for 32-bit
- systems which follow the ARMv7 architected reset values.
-
-- arm,no-tick-in-suspend : The main counter does not tick when the system is in
- low-power system suspend on some SoCs. This behavior does not match the
- Architecture Reference Manual's specification that the system counter "must
- be implemented in an always-on power domain."
-
-
-Example:
-
- timer {
- compatible = "arm,cortex-a15-timer",
- "arm,armv7-timer";
- interrupts = <1 13 0xf08>,
- <1 14 0xf08>,
- <1 11 0xf08>,
- <1 10 0xf08>;
- clock-frequency = <100000000>;
- };
-
-** Memory mapped timer node properties:
-
-- compatible : Should at least contain "arm,armv7-timer-mem".
-
-- clock-frequency : The frequency of the main counter, in Hz. Should be present
- only when firmware has not configured the MMIO CNTFRQ registers.
-
-- reg : The control frame base address.
-
-Note that #address-cells, #size-cells, and ranges shall be present to ensure
-the CPU can address a frame's registers.
-
-A timer node has up to 8 frame sub-nodes, each with the following properties:
-
-- frame-number: 0 to 7.
-
-- interrupts : Interrupt list for physical and virtual timers in that order.
- The virtual timer interrupt is optional.
-
-- reg : The first and second view base addresses in that order. The second view
- base address is optional.
-
-- status : "disabled" indicates the frame is not available for use. Optional.
-
-Example:
-
- timer@f0000000 {
- compatible = "arm,armv7-timer-mem";
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
- reg = <0xf0000000 0x1000>;
- clock-frequency = <50000000>;
-
- frame@f0001000 {
- frame-number = <0>
- interrupts = <0 13 0x8>,
- <0 14 0x8>;
- reg = <0xf0001000 0x1000>,
- <0xf0002000 0x1000>;
- };
-
- frame@f0003000 {
- frame-number = <1>
- interrupts = <0 15 0x8>;
- reg = <0xf0003000 0x1000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/arm/armv7m_systick.txt b/Documentation/devicetree/bindings/arm/armv7m_systick.txt
deleted file mode 100644
index 7cf4a24601eb..000000000000
--- a/Documentation/devicetree/bindings/arm/armv7m_systick.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-* ARMv7M System Timer
-
-ARMv7-M includes a system timer, known as SysTick. Current driver only
-implements the clocksource feature.
-
-Required properties:
-- compatible : Should be "arm,armv7m-systick"
-- reg : The address range of the timer
-
-Required clocking property, have to be one of:
-- clocks : The input clock of the timer
-- clock-frequency : The rate in HZ in input of the ARM SysTick
-
-Examples:
-
-systick: timer@e000e010 {
- compatible = "arm,armv7m-systick";
- reg = <0xe000e010 0x10>;
- clocks = <&clk_systick>;
-};
-
-systick: timer@e000e010 {
- compatible = "arm,armv7m-systick";
- reg = <0xe000e010 0x10>;
- clock-frequency = <90000000>;
-};
diff --git a/Documentation/devicetree/bindings/arm/global_timer.txt b/Documentation/devicetree/bindings/arm/global_timer.txt
deleted file mode 100644
index bdae3a818793..000000000000
--- a/Documentation/devicetree/bindings/arm/global_timer.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-
-* ARM Global Timer
- Cortex-A9 are often associated with a per-core Global timer.
-
-** Timer node required properties:
-
-- compatible : should contain
- * "arm,cortex-a5-global-timer" for Cortex-A5 global timers.
- * "arm,cortex-a9-global-timer" for Cortex-A9 global
- timers or any compatible implementation. Note: driver
- supports versions r2p0 and above.
-
-- interrupts : One interrupt to each core
-
-- reg : Specify the base address and the size of the GT timer
- register window.
-
-- clocks : Should be phandle to a clock.
-
-Example:
-
- timer@2c000600 {
- compatible = "arm,cortex-a9-global-timer";
- reg = <0x2c000600 0x20>;
- interrupts = <1 13 0xf01>;
- clocks = <&arm_periph_clk>;
- };
diff --git a/Documentation/devicetree/bindings/arm/mrvl/timer.txt b/Documentation/devicetree/bindings/arm/mrvl/timer.txt
deleted file mode 100644
index 9a6e251462e7..000000000000
--- a/Documentation/devicetree/bindings/arm/mrvl/timer.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-* Marvell MMP Timer controller
-
-Required properties:
-- compatible : Should be "mrvl,mmp-timer".
-- reg : Address and length of the register set of timer controller.
-- interrupts : Should be the interrupt number.
-
-Example:
- timer0: timer@d4014000 {
- compatible = "mrvl,mmp-timer";
- reg = <0xd4014000 0x100>;
- interrupts = <13>;
- };
diff --git a/Documentation/devicetree/bindings/arm/msm/timer.txt b/Documentation/devicetree/bindings/arm/msm/timer.txt
deleted file mode 100644
index 5e10c345548f..000000000000
--- a/Documentation/devicetree/bindings/arm/msm/timer.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-* MSM Timer
-
-Properties:
-
-- compatible : Should at least contain "qcom,msm-timer". More specific
- properties specify which subsystem the timers are paired with.
-
- "qcom,kpss-timer" - krait subsystem
- "qcom,scss-timer" - scorpion subsystem
-
-- interrupts : Interrupts for the debug timer, the first general purpose
- timer, and optionally a second general purpose timer, and
- optionally as well, 2 watchdog interrupts, in that order.
-
-- reg : Specifies the base address of the timer registers.
-
-- clocks: Reference to the parent clocks, one per output clock. The parents
- must appear in the same order as the clock names.
-
-- clock-names: The name of the clocks as free-form strings. They should be in
- the same order as the clocks.
-
-- clock-frequency : The frequency of the debug timer and the general purpose
- timer(s) in Hz in that order.
-
-Optional:
-
-- cpu-offset : per-cpu offset used when the timer is accessed without the
- CPU remapping facilities. The offset is
- cpu-offset + (0x10000 * cpu-nr).
-
-Example:
-
- timer@200a000 {
- compatible = "qcom,scss-timer", "qcom,msm-timer";
- interrupts = <1 1 0x301>,
- <1 2 0x301>,
- <1 3 0x301>,
- <1 4 0x301>,
- <1 5 0x301>;
- reg = <0x0200a000 0x100>;
- clock-frequency = <19200000>,
- <32768>;
- clocks = <&sleep_clk>;
- clock-names = "sleep";
- cpu-offset = <0x40000>;
- };
diff --git a/Documentation/devicetree/bindings/arm/omap/timer.txt b/Documentation/devicetree/bindings/arm/omap/timer.txt
deleted file mode 100644
index d02e27c764ec..000000000000
--- a/Documentation/devicetree/bindings/arm/omap/timer.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-OMAP Timer bindings
-
-Required properties:
-- compatible: Should be set to one of the below. Please note that
- OMAP44xx devices have timer instances that are 100%
- register compatible with OMAP3xxx devices as well as
- newer timers that are not 100% register compatible.
- So for OMAP44xx devices timer instances may use
- different compatible strings.
-
- ti,omap2420-timer (applicable to OMAP24xx devices)
- ti,omap3430-timer (applicable to OMAP3xxx/44xx devices)
- ti,omap4430-timer (applicable to OMAP44xx devices)
- ti,omap5430-timer (applicable to OMAP543x devices)
- ti,am335x-timer (applicable to AM335x devices)
- ti,am335x-timer-1ms (applicable to AM335x devices)
-
-- reg: Contains timer register address range (base address and
- length).
-- interrupts: Contains the interrupt information for the timer. The
- format is being dependent on which interrupt controller
- the OMAP device uses.
-- ti,hwmods: Name of the hwmod associated to the timer, "timer<X>",
- where <X> is the instance number of the timer from the
- HW spec.
-
-Optional properties:
-- ti,timer-alwon: Indicates the timer is in an alway-on power domain.
-- ti,timer-dsp: Indicates the timer can interrupt the on-chip DSP in
- addition to the ARM CPU.
-- ti,timer-pwm: Indicates the timer can generate a PWM output.
-- ti,timer-secure: Indicates the timer is reserved on a secure OMAP device
- and therefore cannot be used by the kernel.
-
-Example:
-
-timer12: timer@48304000 {
- compatible = "ti,omap3430-timer";
- reg = <0x48304000 0x400>;
- interrupts = <95>;
- ti,hwmods = "timer12"
- ti,timer-alwon;
- ti,timer-secure;
-};
diff --git a/Documentation/devicetree/bindings/arm/spear-timer.txt b/Documentation/devicetree/bindings/arm/spear-timer.txt
deleted file mode 100644
index c0017221cf55..000000000000
--- a/Documentation/devicetree/bindings/arm/spear-timer.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-* SPEAr ARM Timer
-
-** Timer node required properties:
-
-- compatible : Should be:
- "st,spear-timer"
-- reg: Address range of the timer registers
-- interrupt-parent: Should be the phandle for the interrupt controller
- that services interrupts for this device
-- interrupt: Should contain the timer interrupt number
-
-Example:
-
- timer@f0000000 {
- compatible = "st,spear-timer";
- reg = <0xf0000000 0x400>;
- interrupts = <2>;
- };
diff --git a/Documentation/devicetree/bindings/arm/twd.txt b/Documentation/devicetree/bindings/arm/twd.txt
deleted file mode 100644
index 383ea19c2bf0..000000000000
--- a/Documentation/devicetree/bindings/arm/twd.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-* ARM Timer Watchdog
-
-ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
-Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
-and watchdog.
-
-The TWD is usually attached to a GIC to deliver its two per-processor
-interrupts.
-
-** Timer node required properties:
-
-- compatible : Should be one of:
- "arm,cortex-a9-twd-timer"
- "arm,cortex-a5-twd-timer"
- "arm,arm11mp-twd-timer"
-
-- interrupts : One interrupt to each core
-
-- reg : Specify the base address and the size of the TWD timer
- register window.
-
-Optional
-
-- always-on : a boolean property. If present, the timer is powered through
- an always-on power domain, therefore it never loses context.
-
-Example:
-
- twd-timer@2c000600 {
- compatible = "arm,arm11mp-twd-timer"";
- reg = <0x2c000600 0x20>;
- interrupts = <1 13 0xf01>;
- };
-
-** Watchdog node properties:
-
-- compatible : Should be one of:
- "arm,cortex-a9-twd-wdt"
- "arm,cortex-a5-twd-wdt"
- "arm,arm11mp-twd-wdt"
-
-- interrupts : One interrupt to each core
-
-- reg : Specify the base address and the size of the TWD watchdog
- register window.
-
-Example:
-
- twd-watchdog@2c000620 {
- compatible = "arm,arm11mp-twd-wdt";
- reg = <0x2c000620 0x20>;
- interrupts = <1 14 0xf01>;
- };
diff --git a/Documentation/devicetree/bindings/arm/ux500/boards.txt b/Documentation/devicetree/bindings/arm/ux500/boards.txt
index 7334c24625fc..0fa429534f49 100644
--- a/Documentation/devicetree/bindings/arm/ux500/boards.txt
+++ b/Documentation/devicetree/bindings/arm/ux500/boards.txt
@@ -26,7 +26,7 @@ interrupt-controller:
see binding for interrupt-controller/arm,gic.txt
timer:
- see binding for arm/twd.txt
+ see binding for timer/arm,twd.txt
clocks:
see binding for clocks/ux500.txt
diff --git a/Documentation/devicetree/bindings/arm/vt8500/via,vt8500-timer.txt b/Documentation/devicetree/bindings/arm/vt8500/via,vt8500-timer.txt
deleted file mode 100644
index 901c73f0d8ef..000000000000
--- a/Documentation/devicetree/bindings/arm/vt8500/via,vt8500-timer.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-VIA/Wondermedia VT8500 Timer
------------------------------------------------------
-
-Required properties:
-- compatible : "via,vt8500-timer"
-- reg : Should contain 1 register ranges(address and length)
-- interrupts : interrupt for the timer
-
-Example:
-
- timer@d8130100 {
- compatible = "via,vt8500-timer";
- reg = <0xd8130100 0x28>;
- interrupts = <36>;
- };