Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | High-Frequency PLL (HFPLL) |
| 2 | |
| 3 | PROPERTIES |
| 4 | |
| 5 | - compatible: |
| 6 | Usage: required |
| 7 | Value type: <string>: |
| 8 | shall contain only one of the following. The generic |
| 9 | compatible "qcom,hfpll" should be also included. |
| 10 | |
| 11 | "qcom,hfpll-ipq8064", "qcom,hfpll" |
| 12 | "qcom,hfpll-apq8064", "qcom,hfpll" |
| 13 | "qcom,hfpll-msm8974", "qcom,hfpll" |
| 14 | "qcom,hfpll-msm8960", "qcom,hfpll" |
| 15 | "qcom,msm8976-hfpll-a53", "qcom,hfpll" |
| 16 | "qcom,msm8976-hfpll-a72", "qcom,hfpll" |
| 17 | "qcom,msm8976-hfpll-cci", "qcom,hfpll" |
| 18 | |
| 19 | - reg: |
| 20 | Usage: required |
| 21 | Value type: <prop-encoded-array> |
| 22 | Definition: address and size of HPLL registers. An optional second |
| 23 | element specifies the address and size of the alias |
| 24 | register region. |
| 25 | |
| 26 | - clocks: |
| 27 | Usage: required |
| 28 | Value type: <prop-encoded-array> |
| 29 | Definition: reference to the xo clock. |
| 30 | |
| 31 | - clock-names: |
| 32 | Usage: required |
| 33 | Value type: <stringlist> |
| 34 | Definition: must be "xo". |
| 35 | |
| 36 | - clock-output-names: |
| 37 | Usage: required |
| 38 | Value type: <string> |
| 39 | Definition: Name of the PLL. Typically hfpllX where X is a CPU number |
| 40 | starting at 0. Otherwise hfpll_Y where Y is more specific |
| 41 | such as "l2". |
| 42 | |
| 43 | Example: |
| 44 | |
| 45 | 1) An HFPLL for the L2 cache. |
| 46 | |
| 47 | clock-controller@f9016000 { |
| 48 | compatible = "qcom,hfpll-ipq8064", "qcom,hfpll"; |
| 49 | reg = <0xf9016000 0x30>; |
| 50 | clocks = <&xo_board>; |
| 51 | clock-names = "xo"; |
| 52 | clock-output-names = "hfpll_l2"; |
| 53 | }; |
| 54 | |
| 55 | 2) An HFPLL for CPU0. This HFPLL has the alias register region. |
| 56 | |
| 57 | clock-controller@f908a000 { |
| 58 | compatible = "qcom,hfpll-ipq8064", "qcom,hfpll"; |
| 59 | reg = <0xf908a000 0x30>, <0xf900a000 0x30>; |
| 60 | clocks = <&xo_board>; |
| 61 | clock-names = "xo"; |
| 62 | clock-output-names = "hfpll0"; |
| 63 | }; |