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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +%YAML 1.2 |
| 3 | +--- |
| 4 | +$id: http://devicetree.org/schemas/clock/nxp,lpc1850-ccu.yaml# |
| 5 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | + |
| 7 | +title: NXP LPC1850 Clock Control Unit (CCU) |
| 8 | + |
| 9 | +description: |
| 10 | + Each CGU base clock has several clock branches which can be turned on |
| 11 | + or off independently by the Clock Control Units CCU1 or CCU2. The |
| 12 | + branch clocks are distributed between CCU1 and CCU2. |
| 13 | + |
| 14 | + Above text taken from NXP LPC1850 User Manual |
| 15 | + |
| 16 | +maintainers: |
| 17 | + |
| 18 | + |
| 19 | +properties: |
| 20 | + compatible: |
| 21 | + const: nxp,lpc1850-ccu |
| 22 | + |
| 23 | + reg: |
| 24 | + maxItems: 1 |
| 25 | + |
| 26 | + '#clock-cells': |
| 27 | + const: 1 |
| 28 | + |
| 29 | + clocks: |
| 30 | + minItems: 1 |
| 31 | + maxItems: 8 |
| 32 | + |
| 33 | + clock-names: |
| 34 | + minItems: 1 |
| 35 | + maxItems: 8 |
| 36 | + items: |
| 37 | + enum: |
| 38 | + - base_usb0_clk |
| 39 | + - base_periph_clk |
| 40 | + - base_usb1_clk |
| 41 | + - base_cpu_clk |
| 42 | + - base_spifi_clk |
| 43 | + - base_spi_clk |
| 44 | + - base_apb1_clk |
| 45 | + - base_apb3_clk |
| 46 | + - base_adchs_clk |
| 47 | + - base_sdio_clk |
| 48 | + - base_ssp0_clk |
| 49 | + - base_ssp1_clk |
| 50 | + - base_uart0_clk |
| 51 | + - base_uart1_clk |
| 52 | + - base_uart2_clk |
| 53 | + - base_uart3_clk |
| 54 | + - base_audio_clk |
| 55 | + description: |
| 56 | + Which branch clocks that are available on the CCU depends on the |
| 57 | + specific LPC part. Check the user manual for your specific part. |
| 58 | + |
| 59 | + A list of CCU clocks can be found in dt-bindings/clock/lpc18xx-ccu.h. |
| 60 | + |
| 61 | +required: |
| 62 | + - compatible |
| 63 | + - reg |
| 64 | + - '#clock-cells' |
| 65 | + - clocks |
| 66 | + - clock-names |
| 67 | + |
| 68 | +additionalProperties: false |
| 69 | + |
| 70 | +examples: |
| 71 | + - | |
| 72 | + #include <dt-bindings/clock/lpc18xx-cgu.h> |
| 73 | +
|
| 74 | + clock-controller@40051000 { |
| 75 | + compatible = "nxp,lpc1850-ccu"; |
| 76 | + reg = <0x40051000 0x1000>; |
| 77 | + #clock-cells = <1>; |
| 78 | + clocks = <&cgu BASE_APB3_CLK>, <&cgu BASE_APB1_CLK>, |
| 79 | + <&cgu BASE_SPIFI_CLK>, <&cgu BASE_CPU_CLK>, |
| 80 | + <&cgu BASE_PERIPH_CLK>, <&cgu BASE_USB0_CLK>, |
| 81 | + <&cgu BASE_USB1_CLK>, <&cgu BASE_SPI_CLK>; |
| 82 | + clock-names = "base_apb3_clk", "base_apb1_clk", |
| 83 | + "base_spifi_clk", "base_cpu_clk", |
| 84 | + "base_periph_clk", "base_usb0_clk", |
| 85 | + "base_usb1_clk", "base_spi_clk"; |
| 86 | + }; |
| 87 | +
|
| 88 | + - | |
| 89 | + #include <dt-bindings/clock/lpc18xx-cgu.h> |
| 90 | +
|
| 91 | + clock-controller@40052000 { |
| 92 | + compatible = "nxp,lpc1850-ccu"; |
| 93 | + reg = <0x40052000 0x1000>; |
| 94 | + #clock-cells = <1>; |
| 95 | + clocks = <&cgu BASE_AUDIO_CLK>, <&cgu BASE_UART3_CLK>, |
| 96 | + <&cgu BASE_UART2_CLK>, <&cgu BASE_UART1_CLK>, |
| 97 | + <&cgu BASE_UART0_CLK>, <&cgu BASE_SSP1_CLK>, |
| 98 | + <&cgu BASE_SSP0_CLK>, <&cgu BASE_SDIO_CLK>; |
| 99 | + clock-names = "base_audio_clk", "base_uart3_clk", |
| 100 | + "base_uart2_clk", "base_uart1_clk", |
| 101 | + "base_uart0_clk", "base_ssp1_clk", |
| 102 | + "base_ssp0_clk", "base_sdio_clk"; |
| 103 | + }; |
| 104 | +
|
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