Purna Chandra Mandal | a0e7908 | 2016-01-28 15:30:11 +0530 | [diff] [blame] | 1 | * Microchip PIC32 Clock and Oscillator |
| 2 | |
| 3 | Microchip PIC32 clock tree consists of few oscillators, PLLs, |
| 4 | multiplexers and few divider modules capable of supplying clocks |
| 5 | to various controllers within SoC and also to off-chip. |
| 6 | |
| 7 | PIC32 clock controller output is defined by indices as defined |
| 8 | in [0] |
| 9 | |
| 10 | [0] include/dt-bindings/clock/microchip,clock.h |
| 11 | |
| 12 | Required Properties: |
| 13 | - compatible: should be "microchip,pic32mzda_clk" |
| 14 | - reg: physical base address of the controller and length of memory mapped |
| 15 | region. |
| 16 | - #clock-cells: should be 1. |
| 17 | |
| 18 | Example: Clock controller node: |
| 19 | |
| 20 | clock: clk@1f801200 { |
| 21 | compatible = "microchip,pic32mzda-clk"; |
| 22 | reg = <0x1f801200 0x1000>; |
| 23 | }; |
| 24 | |
| 25 | Example: UART controller node that consumes the clock generated by the clock |
| 26 | controller: |
| 27 | |
| 28 | uart1: serial@1f822000 { |
| 29 | compatible = "microchip,pic32mzda-uart"; |
| 30 | reg = <0xbf822000 0x50>; |
| 31 | interrupts = <112 IRQ_TYPE_LEVEL_HIGH>; |
| 32 | clocks = <&clock PB2CLK>; |
| 33 | }; |