diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 20:11:38 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-25 20:11:38 +0300 |
commit | aa5b537b0ecc16992577b013f11112d54c7ce869 (patch) | |
tree | ac9f6ce6c8c5b4722501cb36e95b3c0a35aa933e /Documentation/devicetree/bindings | |
parent | d710d370c4911e83da5d2bc43d4a2c3b56bd27e7 (diff) | |
parent | bbde015227e89f1da21bd3b84523d62c4a445c06 (diff) | |
download | linux-aa5b537b0ecc16992577b013f11112d54c7ce869.tar.xz |
Merge tag 'riscv-for-linus-5.18-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
- Support for Sv57-based virtual memory.
- Various improvements for the MicroChip PolarFire SOC and the
associated Icicle dev board, which should allow upstream kernels to
boot without any additional modifications.
- An improved memmove() implementation.
- Support for the new Ssconfpmf and SBI PMU extensions, which allows
for a much more useful perf implementation on RISC-V systems.
- Support for restartable sequences.
* tag 'riscv-for-linus-5.18-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (36 commits)
rseq/selftests: Add support for RISC-V
RISC-V: Add support for restartable sequence
MAINTAINERS: Add entry for RISC-V PMU drivers
Documentation: riscv: Remove the old documentation
RISC-V: Add sscofpmf extension support
RISC-V: Add perf platform driver based on SBI PMU extension
RISC-V: Add RISC-V SBI PMU extension definitions
RISC-V: Add a simple platform driver for RISC-V legacy perf
RISC-V: Add a perf core library for pmu drivers
RISC-V: Add CSR encodings for all HPMCOUNTERS
RISC-V: Remove the current perf implementation
RISC-V: Improve /proc/cpuinfo output for ISA extensions
RISC-V: Do no continue isa string parsing without correct XLEN
RISC-V: Implement multi-letter ISA extension probing framework
RISC-V: Extract multi-letter extension names from "riscv, isa"
RISC-V: Minimal parser for "riscv, isa" strings
RISC-V: Correctly print supported extensions
riscv: Fixed misaligned memory access. Fixed pointer comparison.
MAINTAINERS: update riscv/microchip entry
riscv: dts: microchip: add new peripherals to icicle kit device tree
...
Diffstat (limited to 'Documentation/devicetree/bindings')
-rw-r--r-- | Documentation/devicetree/bindings/clock/microchip,mpfs.yaml | 58 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml | 79 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml (renamed from Documentation/devicetree/bindings/mailbox/microchip,polarfire-soc-mailbox.yaml) | 6 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml | 81 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml | 58 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml | 40 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/soc/microchip/microchip,polarfire-soc-sys-controller.yaml | 35 |
7 files changed, 319 insertions, 38 deletions
diff --git a/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml b/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml new file mode 100644 index 000000000000..0c15afa2214c --- /dev/null +++ b/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml @@ -0,0 +1,58 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/microchip,mpfs.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip PolarFire Clock Control Module Binding + +maintainers: + - Daire McNamara <daire.mcnamara@microchip.com> + +description: | + Microchip PolarFire clock control (CLKCFG) is an integrated clock controller, + which gates and enables all peripheral clocks. + + This device tree binding describes 33 gate clocks. Clocks are referenced by + user nodes by the CLKCFG node phandle and the clock index in the group, from + 0 to 32. + +properties: + compatible: + const: microchip,mpfs-clkcfg + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + '#clock-cells': + const: 1 + description: | + The clock consumer should specify the desired clock by having the clock + ID in its "clocks" phandle cell. See include/dt-bindings/clock/microchip,mpfs-clock.h + for the full list of PolarFire clock IDs. + +required: + - compatible + - reg + - clocks + - '#clock-cells' + +additionalProperties: false + +examples: + # Clock Config node: + - | + #include <dt-bindings/clock/microchip,mpfs-clock.h> + soc { + #address-cells = <2>; + #size-cells = <2>; + clkcfg: clock-controller@20002000 { + compatible = "microchip,mpfs-clkcfg"; + reg = <0x0 0x20002000 0x0 0x1000>; + clocks = <&ref>; + #clock-cells = <1>; + }; + }; diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml new file mode 100644 index 000000000000..110651eafa70 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/gpio/microchip,mpfs-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip MPFS GPIO Controller Device Tree Bindings + +maintainers: + - Conor Dooley <conor.dooley@microchip.com> + +properties: + compatible: + items: + - enum: + - microchip,mpfs-gpio + + reg: + maxItems: 1 + + interrupts: + description: + Interrupt mapping, one per GPIO. Maximum 32 GPIOs. + minItems: 1 + maxItems: 32 + + interrupt-controller: true + + clocks: + maxItems: 1 + + "#gpio-cells": + const: 2 + + "#interrupt-cells": + const: 1 + + ngpios: + description: + The number of GPIOs available. + minimum: 1 + maximum: 32 + default: 32 + + gpio-controller: true + +required: + - compatible + - reg + - interrupts + - "#interrupt-cells" + - interrupt-controller + - "#gpio-cells" + - gpio-controller + - clocks + +additionalProperties: false + +examples: + - | + gpio@20122000 { + compatible = "microchip,mpfs-gpio"; + reg = <0x20122000 0x1000>; + clocks = <&clkcfg 25>; + interrupt-parent = <&plic>; + gpio-controller; + #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <1>; + interrupts = <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>, + <53>, <53>, <53>, <53>; + }; +... diff --git a/Documentation/devicetree/bindings/mailbox/microchip,polarfire-soc-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml index bbb173ea483c..082d397d3e89 100644 --- a/Documentation/devicetree/bindings/mailbox/microchip,polarfire-soc-mailbox.yaml +++ b/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml @@ -1,7 +1,7 @@ # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- -$id: "http://devicetree.org/schemas/mailbox/microchip,polarfire-soc-mailbox.yaml#" +$id: "http://devicetree.org/schemas/mailbox/microchip,mpfs-mailbox.yaml#" $schema: "http://devicetree.org/meta-schemas/core.yaml#" title: Microchip PolarFire SoC (MPFS) MSS (microprocessor subsystem) mailbox controller @@ -11,7 +11,7 @@ maintainers: properties: compatible: - const: microchip,polarfire-soc-mailbox + const: microchip,mpfs-mailbox reg: items: @@ -38,7 +38,7 @@ examples: #address-cells = <2>; #size-cells = <2>; mbox: mailbox@37020000 { - compatible = "microchip,polarfire-soc-mailbox"; + compatible = "microchip,mpfs-mailbox"; reg = <0x0 0x37020000 0x0 0x1000>, <0x0 0x2000318c 0x0 0x40>; interrupt-parent = <&L1>; interrupts = <96>; diff --git a/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml b/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml new file mode 100644 index 000000000000..a7fae1772a81 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/microchip,corepwm.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) + +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/microchip,corepwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip IP corePWM controller bindings + +maintainers: + - Conor Dooley <conor.dooley@microchip.com> + +description: | + corePWM is an 16 channel pulse width modulator FPGA IP + + https://www.microsemi.com/existing-parts/parts/152118 + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + items: + - const: microchip,corepwm-rtl-v4 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + "#pwm-cells": + const: 2 + + microchip,sync-update-mask: + description: | + Depending on how the IP is instantiated, there are two modes of operation. + In synchronous mode, all channels are updated at the beginning of the PWM period, + and in asynchronous mode updates happen as the control registers are written. + A 16 bit wide "SHADOW_REG_EN" parameter of the IP core controls whether synchronous + mode is possible for each channel, and is set by the bitstream programmed to the + FPGA. If the IP core is instantiated with SHADOW_REG_ENx=1, both registers that + control the duty cycle for channel x have a second "shadow"/buffer reg synthesised. + At runtime a bit wide register exposed to APB can be used to toggle on/off + synchronised mode for all channels it has been synthesised for. + Each bit of "microchip,sync-update-mask" corresponds to a PWM channel & represents + whether synchronous mode is possible for the PWM channel. + + $ref: /schemas/types.yaml#/definitions/uint32 + default: 0 + + microchip,dac-mode-mask: + description: | + Optional, per-channel Low Ripple DAC mode is possible on this IP core. It creates + a minimum period pulse train whose High/Low average is that of the chosen duty + cycle. This "DAC" will have far better bandwidth and ripple performance than the + standard PWM algorithm can achieve. A 16 bit DAC_MODE module parameter of the IP + core, set at instantiation and by the bitstream programmed to the FPGA, determines + whether a given channel operates in regular PWM or DAC mode. + Each bit corresponds to a PWM channel & represents whether DAC mode is enabled + for that channel. + + $ref: /schemas/types.yaml#/definitions/uint32 + default: 0 + +required: + - compatible + - reg + - clocks + +additionalProperties: false + +examples: + - | + pwm@41000000 { + compatible = "microchip,corepwm-rtl-v4"; + microchip,sync-update-mask = /bits/ 32 <0>; + clocks = <&clkcfg 30>; + reg = <0x41000000 0xF0>; + #pwm-cells = <2>; + }; diff --git a/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml b/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml new file mode 100644 index 000000000000..a2e984ea3553 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml @@ -0,0 +1,58 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/microchip,mfps-rtc.yaml# + +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip PolarFire Soc (MPFS) RTC Device Tree Bindings + +allOf: + - $ref: rtc.yaml# + +maintainers: + - Daire McNamara <daire.mcnamara@microchip.com> + - Lewis Hanly <lewis.hanly@microchip.com> + +properties: + compatible: + enum: + - microchip,mpfs-rtc + + reg: + maxItems: 1 + + interrupts: + items: + - description: | + RTC_WAKEUP interrupt + - description: | + RTC_MATCH, asserted when the content of the Alarm register is equal + to that of the RTC's count register. + + clocks: + maxItems: 1 + + clock-names: + items: + - const: rtc + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + rtc@20124000 { + compatible = "microchip,mpfs-rtc"; + reg = <0x20124000 0x1000>; + clocks = <&clkcfg 21>; + clock-names = "rtc"; + interrupts = <80>, <81>; + }; +... diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml new file mode 100644 index 000000000000..b0dae51e1d42 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/soc/microchip/microchip,mpfs-sys-controller.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Microchip PolarFire SoC (MPFS) MSS (microprocessor subsystem) system controller + +maintainers: + - Conor Dooley <conor.dooley@microchip.com> + +description: | + PolarFire SoC devices include a microcontroller acting as the system controller, + which provides "services" to the main processor and to the FPGA fabric. These + services include hardware rng, reprogramming of the FPGA and verfification of the + eNVM contents etc. More information on these services can be found online, at + https://onlinedocs.microchip.com/pr/GUID-1409CF11-8EF9-4C24-A94E-70979A688632-en-US-1/index.html + + Communication with the system controller is done via a mailbox, of which the client + portion is documented here. + +properties: + mboxes: + maxItems: 1 + + compatible: + const: microchip,mpfs-sys-controller + +required: + - compatible + - mboxes + +additionalProperties: false + +examples: + - | + syscontroller { + compatible = "microchip,mpfs-sys-controller"; + mboxes = <&mbox 0>; + }; diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,polarfire-soc-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,polarfire-soc-sys-controller.yaml deleted file mode 100644 index 2cd3bc6bd8d6..000000000000 --- a/Documentation/devicetree/bindings/soc/microchip/microchip,polarfire-soc-sys-controller.yaml +++ /dev/null @@ -1,35 +0,0 @@ -# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) -%YAML 1.2 ---- -$id: "http://devicetree.org/schemas/soc/microchip/microchip,polarfire-soc-sys-controller.yaml#" -$schema: "http://devicetree.org/meta-schemas/core.yaml#" - -title: Microchip PolarFire SoC (MPFS) MSS (microprocessor subsystem) system controller - -maintainers: - - Conor Dooley <conor.dooley@microchip.com> - -description: | - The PolarFire SoC system controller is communicated with via a mailbox. - This document describes the bindings for the client portion of that mailbox. - - -properties: - mboxes: - maxItems: 1 - - compatible: - const: microchip,polarfire-soc-sys-controller - -required: - - compatible - - mboxes - -additionalProperties: false - -examples: - - | - syscontroller: syscontroller { - compatible = "microchip,polarfire-soc-sys-controller"; - mboxes = <&mbox 0>; - }; |