Convert NVIDIA Tegra clock bindings to schema. Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx> --- .../bindings/clock/nvidia,tegra-car.yaml | 118 ++++++++++++++++++ .../bindings/clock/nvidia,tegra114-car.txt | 63 ---------- .../bindings/clock/nvidia,tegra124-car.txt | 107 ---------------- .../bindings/clock/nvidia,tegra20-car.txt | 63 ---------- .../bindings/clock/nvidia,tegra210-car.txt | 56 --------- .../bindings/clock/nvidia,tegra30-car.txt | 63 ---------- 6 files changed, 118 insertions(+), 352 deletions(-) create mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt delete mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml b/Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml new file mode 100644 index 000000000000..4d8d38bb1af2 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nvidia,tegra-car.yaml @@ -0,0 +1,118 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/nvidia,tegra-car.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra Clock and Reset Controller + +maintainers: + - Jon Hunter <jonathanh@xxxxxxxxxx> + - Thierry Reding <thierry.reding@xxxxxxxxx> + +description: | + The Clock and Reset (CAR) is the HW module responsible for muxing and gating + Tegra's clocks, and setting their rates. It comprises CLKGEN and RSTGEN units. + + CLKGEN provides the registers to program the PLLs. It controls most of + the clock source programming and most of the clock dividers. + + CLKGEN input signals include the external clock for the reference frequency + (12 MHz, 26 MHz) and the external clock for the Real Time Clock (32.768 KHz). + + Outputs from CLKGEN are inputs clock of the h/w blocks in the Tegra system. + + RSTGEN provides the registers needed to control resetting of each block in + the Tegra system. + +properties: + compatible: + enum: + - nvidia,tegra20-car + - nvidia,tegra30-car + - nvidia,tegra114-car + - nvidia,tegra124-car + - nvidia,tegra210-car + + reg: + maxItems: 1 + + '#clock-cells': + const: 1 + + "#reset-cells": + const: 1 + + nvidia,external-memory-controller: + $ref: /schemas/types.yaml#/definitions/phandle + description: + phandle of the external memory controller node + +patternProperties: + "^emc-timings-[0-9]+$": + type: object + properties: + nvidia,ram-code: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + value of the RAM_CODE field in the PMC_STRAPPING_OPT_A register that + this timing set is used for + + patternProperties: + "^timing-[0-9]+$": + type: object + properties: + clock-frequency: + description: + external memory clock rate in Hz + minimum: 1000000 + maximum: 1000000000 + + nvidia,parent-clock-frequency: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + rate of parent clock in Hz + minimum: 1000000 + maximum: 1000000000 + + clocks: + items: + - description: parent clock of EMC + + clock-names: + items: + - const: emc-parent + + required: + - clock-frequency + - nvidia,parent-clock-frequency + - clocks + - clock-names + + additionalProperties: false + +required: + - compatible + - reg + - '#clock-cells' + - "#reset-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/tegra20-car.h> + + car: clock-controller@60006000 { + compatible = "nvidia,tegra20-car"; + reg = <0x60006000 0x1000>; + #clock-cells = <1>; + #reset-cells = <1>; + }; + + usb-controller@c5004000 { + compatible = "nvidia,tegra20-ehci", "usb-ehci"; + reg = <0xc5004000 0x4000>; + clocks = <&car TEGRA20_CLK_USB2>; + resets = <&car TEGRA20_CLK_USB2>; + }; diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt deleted file mode 100644 index 9acea9d93160..000000000000 --- a/Documentation/devicetree/bindings/clock/nvidia,tegra114-car.txt +++ /dev/null @@ -1,63 +0,0 @@ -NVIDIA Tegra114 Clock And Reset Controller - -This binding uses the common clock binding: -Documentation/devicetree/bindings/clock/clock-bindings.txt - -The CAR (Clock And Reset) Controller on Tegra is the HW module responsible -for muxing and gating Tegra's clocks, and setting their rates. - -Required properties : -- compatible : Should be "nvidia,tegra114-car" -- reg : Should contain CAR registers location and length -- clocks : Should contain phandle and clock specifiers for two clocks: - the 32 KHz "32k_in", and the board-specific oscillator "osc". -- #clock-cells : Should be 1. - In clock consumers, this cell represents the clock ID exposed by the - CAR. The assignments may be found in header file - <dt-bindings/clock/tegra114-car.h>. -- #reset-cells : Should be 1. - In clock consumers, this cell represents the bit number in the CAR's - array of CLK_RST_CONTROLLER_RST_DEVICES_* registers. - -Example SoC include file: - -/ { - tegra_car: clock { - compatible = "nvidia,tegra114-car"; - reg = <0x60006000 0x1000>; - #clock-cells = <1>; - #reset-cells = <1>; - }; - - usb@c5004000 { - clocks = <&tegra_car TEGRA114_CLK_USB2>; - }; -}; - -Example board file: - -/ { - clocks { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - osc: clock@0 { - compatible = "fixed-clock"; - reg = <0>; - #clock-cells = <0>; - clock-frequency = <12000000>; - }; - - clk_32k: clock@1 { - compatible = "fixed-clock"; - reg = <1>; - #clock-cells = <0>; - clock-frequency = <32768>; - }; - }; - - &tegra_car { - clocks = <&clk_32k> <&osc>; - }; -}; diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt deleted file mode 100644 index 7f02fb4ca4ad..000000000000 --- a/Documentation/devicetree/bindings/clock/nvidia,tegra124-car.txt +++ /dev/null @@ -1,107 +0,0 @@ -NVIDIA Tegra124 and Tegra132 Clock And Reset Controller - -This binding uses the common clock binding: -Documentation/devicetree/bindings/clock/clock-bindings.txt - -The CAR (Clock And Reset) Controller on Tegra is the HW module responsible -for muxing and gating Tegra's clocks, and setting their rates. - -Required properties : -- compatible : Should be "nvidia,tegra124-car" or "nvidia,tegra132-car" -- reg : Should contain CAR registers location and length -- clocks : Should contain phandle and clock specifiers for two clocks: - the 32 KHz "32k_in", and the board-specific oscillator "osc". -- #clock-cells : Should be 1. - In clock consumers, this cell represents the clock ID exposed by the - CAR. The assignments may be found in the header files - <dt-bindings/clock/tegra124-car-common.h> (which covers IDs common - to Tegra124 and Tegra132) and <dt-bindings/clock/tegra124-car.h> - (for Tegra124-specific clocks). -- #reset-cells : Should be 1. - In clock consumers, this cell represents the bit number in the CAR's - array of CLK_RST_CONTROLLER_RST_DEVICES_* registers. -- nvidia,external-memory-controller : phandle of the EMC driver. - -The node should contain a "emc-timings" subnode for each supported RAM type (see -field RAM_CODE in register PMC_STRAPPING_OPT_A). - -Required properties for "emc-timings" nodes : -- nvidia,ram-code : Should contain the value of RAM_CODE this timing set - is used for. - -Each "emc-timings" node should contain a "timing" subnode for every supported -EMC clock rate. - -Required properties for "timing" nodes : -- clock-frequency : Should contain the memory clock rate to which this timing -relates. -- nvidia,parent-clock-frequency : Should contain the rate at which the current -parent of the EMC clock should be running at this timing. -- clocks : Must contain an entry for each entry in clock-names. - See ../clocks/clock-bindings.txt for details. -- clock-names : Must include the following entries: - - emc-parent : the clock that should be the parent of the EMC clock at this -timing. - -Example SoC include file: - -/ { - tegra_car: clock@60006000 { - compatible = "nvidia,tegra124-car"; - reg = <0x60006000 0x1000>; - #clock-cells = <1>; - #reset-cells = <1>; - nvidia,external-memory-controller = <&emc>; - }; - - usb@c5004000 { - clocks = <&tegra_car TEGRA124_CLK_USB2>; - }; -}; - -Example board file: - -/ { - clocks { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - osc: clock@0 { - compatible = "fixed-clock"; - reg = <0>; - #clock-cells = <0>; - clock-frequency = <112400000>; - }; - - clk_32k: clock@1 { - compatible = "fixed-clock"; - reg = <1>; - #clock-cells = <0>; - clock-frequency = <32768>; - }; - }; - - &tegra_car { - clocks = <&clk_32k> <&osc>; - }; - - clock@60006000 { - emc-timings-3 { - nvidia,ram-code = <3>; - - timing-12750000 { - clock-frequency = <12750000>; - nvidia,parent-clock-frequency = <408000000>; - clocks = <&tegra_car TEGRA124_CLK_PLL_P>; - clock-names = "emc-parent"; - }; - timing-20400000 { - clock-frequency = <20400000>; - nvidia,parent-clock-frequency = <408000000>; - clocks = <&tegra_car TEGRA124_CLK_PLL_P>; - clock-names = "emc-parent"; - }; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt deleted file mode 100644 index 6c5901b503d0..000000000000 --- a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt +++ /dev/null @@ -1,63 +0,0 @@ -NVIDIA Tegra20 Clock And Reset Controller - -This binding uses the common clock binding: -Documentation/devicetree/bindings/clock/clock-bindings.txt - -The CAR (Clock And Reset) Controller on Tegra is the HW module responsible -for muxing and gating Tegra's clocks, and setting their rates. - -Required properties : -- compatible : Should be "nvidia,tegra20-car" -- reg : Should contain CAR registers location and length -- clocks : Should contain phandle and clock specifiers for two clocks: - the 32 KHz "32k_in", and the board-specific oscillator "osc". -- #clock-cells : Should be 1. - In clock consumers, this cell represents the clock ID exposed by the - CAR. The assignments may be found in header file - <dt-bindings/clock/tegra20-car.h>. -- #reset-cells : Should be 1. - In clock consumers, this cell represents the bit number in the CAR's - array of CLK_RST_CONTROLLER_RST_DEVICES_* registers. - -Example SoC include file: - -/ { - tegra_car: clock { - compatible = "nvidia,tegra20-car"; - reg = <0x60006000 0x1000>; - #clock-cells = <1>; - #reset-cells = <1>; - }; - - usb@c5004000 { - clocks = <&tegra_car TEGRA20_CLK_USB2>; - }; -}; - -Example board file: - -/ { - clocks { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - osc: clock@0 { - compatible = "fixed-clock"; - reg = <0>; - #clock-cells = <0>; - clock-frequency = <12000000>; - }; - - clk_32k: clock@1 { - compatible = "fixed-clock"; - reg = <1>; - #clock-cells = <0>; - clock-frequency = <32768>; - }; - }; - - &tegra_car { - clocks = <&clk_32k> <&osc>; - }; -}; diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt deleted file mode 100644 index 26f237f641b7..000000000000 --- a/Documentation/devicetree/bindings/clock/nvidia,tegra210-car.txt +++ /dev/null @@ -1,56 +0,0 @@ -NVIDIA Tegra210 Clock And Reset Controller - -This binding uses the common clock binding: -Documentation/devicetree/bindings/clock/clock-bindings.txt - -The CAR (Clock And Reset) Controller on Tegra is the HW module responsible -for muxing and gating Tegra's clocks, and setting their rates. - -Required properties : -- compatible : Should be "nvidia,tegra210-car" -- reg : Should contain CAR registers location and length -- clocks : Should contain phandle and clock specifiers for two clocks: - the 32 KHz "32k_in". -- #clock-cells : Should be 1. - In clock consumers, this cell represents the clock ID exposed by the - CAR. The assignments may be found in header file - <dt-bindings/clock/tegra210-car.h>. -- #reset-cells : Should be 1. - In clock consumers, this cell represents the bit number in the CAR's - array of CLK_RST_CONTROLLER_RST_DEVICES_* registers. - -Example SoC include file: - -/ { - tegra_car: clock { - compatible = "nvidia,tegra210-car"; - reg = <0x60006000 0x1000>; - #clock-cells = <1>; - #reset-cells = <1>; - }; - - usb@c5004000 { - clocks = <&tegra_car TEGRA210_CLK_USB2>; - }; -}; - -Example board file: - -/ { - clocks { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - clk_32k: clock@1 { - compatible = "fixed-clock"; - reg = <1>; - #clock-cells = <0>; - clock-frequency = <32768>; - }; - }; - - &tegra_car { - clocks = <&clk_32k>; - }; -}; diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt deleted file mode 100644 index 63618cde12df..000000000000 --- a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt +++ /dev/null @@ -1,63 +0,0 @@ -NVIDIA Tegra30 Clock And Reset Controller - -This binding uses the common clock binding: -Documentation/devicetree/bindings/clock/clock-bindings.txt - -The CAR (Clock And Reset) Controller on Tegra is the HW module responsible -for muxing and gating Tegra's clocks, and setting their rates. - -Required properties : -- compatible : Should be "nvidia,tegra30-car" -- reg : Should contain CAR registers location and length -- clocks : Should contain phandle and clock specifiers for two clocks: - the 32 KHz "32k_in", and the board-specific oscillator "osc". -- #clock-cells : Should be 1. - In clock consumers, this cell represents the clock ID exposed by the - CAR. The assignments may be found in header file - <dt-bindings/clock/tegra30-car.h>. -- #reset-cells : Should be 1. - In clock consumers, this cell represents the bit number in the CAR's - array of CLK_RST_CONTROLLER_RST_DEVICES_* registers. - -Example SoC include file: - -/ { - tegra_car: clock { - compatible = "nvidia,tegra30-car"; - reg = <0x60006000 0x1000>; - #clock-cells = <1>; - #reset-cells = <1>; - }; - - usb@c5004000 { - clocks = <&tegra_car TEGRA30_CLK_USB2>; - }; -}; - -Example board file: - -/ { - clocks { - compatible = "simple-bus"; - #address-cells = <1>; - #size-cells = <0>; - - osc: clock@0 { - compatible = "fixed-clock"; - reg = <0>; - #clock-cells = <0>; - clock-frequency = <12000000>; - }; - - clk_32k: clock@1 { - compatible = "fixed-clock"; - reg = <1>; - #clock-cells = <0>; - clock-frequency = <32768>; - }; - }; - - &tegra_car { - clocks = <&clk_32k> <&osc>; - }; -}; -- 2.29.2
