diff options
| -rw-r--r-- | Documentation/devicetree/bindings/clock/microchip,pic32.txt | 39 | ||||
| -rw-r--r-- | include/dt-bindings/clock/microchip,pic32-clock.h | 42 |
2 files changed, 81 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/microchip,pic32.txt b/Documentation/devicetree/bindings/clock/microchip,pic32.txt new file mode 100644 index 000000000000..c93d88fdd858 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/microchip,pic32.txt @@ -0,0 +1,39 @@ +Microchip PIC32 Clock Controller Binding +---------------------------------------- +Microchip clock controller is consists of few oscillators, PLL, multiplexer +and few divider modules. + +This binding uses common clock bindings. +[1] Documentation/devicetree/bindings/clock/clock-bindings.txt + +Required properties: +- compatible: shall be "microchip,pic32mzda-clk". +- reg: shall contain base address and length of clock registers. +- #clock-cells: shall be 1. + +Optional properties: +- microchip,pic32mzda-sosc: shall be added only if platform has + secondary oscillator connected. + +Example: + rootclk: clock-controller@1f801200 { + compatible = "microchip,pic32mzda-clk"; + reg = <0x1f801200 0x200>; + #clock-cells = <1>; + /* optional */ + microchip,pic32mzda-sosc; + }; + + +The clock consumer shall specify the desired clock-output of the clock +controller (as defined in [2]) by specifying output-id in its "clock" +phandle cell. +[2] include/dt-bindings/clock/microchip,pic32-clock.h + +For example for UART2: +uart2: serial@2 { + compatible = "microchip,pic32mzda-uart"; + reg = <>; + interrupts = <>; + clocks = <&rootclk PB2CLK>; +}; diff --git a/include/dt-bindings/clock/microchip,pic32-clock.h b/include/dt-bindings/clock/microchip,pic32-clock.h new file mode 100644 index 000000000000..184647a6a8de --- /dev/null +++ b/include/dt-bindings/clock/microchip,pic32-clock.h @@ -0,0 +1,42 @@ +/* + * Purna Chandra Mandal,<purna.mandal@microchip.com> + * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef _DT_BINDINGS_CLK_MICROCHIP_PIC32_H_ +#define _DT_BINDINGS_CLK_MICROCHIP_PIC32_H_ + +/* clock output indices */ +#define POSCCLK 0 +#define FRCCLK 1 +#define BFRCCLK 2 +#define LPRCCLK 3 +#define SOSCCLK 4 +#define FRCDIVCLK 5 +#define PLLCLK 6 +#define SCLK 7 +#define PB1CLK 8 +#define PB2CLK 9 +#define PB3CLK 10 +#define PB4CLK 11 +#define PB5CLK 12 +#define PB6CLK 13 +#define PB7CLK 14 +#define REF1CLK 15 +#define REF2CLK 16 +#define REF3CLK 17 +#define REF4CLK 18 +#define REF5CLK 19 +#define UPLLCLK 20 +#define MAXCLKS 21 + +#endif /* _DT_BINDINGS_CLK_MICROCHIP_PIC32_H_ */ |