1a8ca1b28SThierry RedingTegra124 CPU frequency scaling driver bindings 2a8ca1b28SThierry Reding---------------------------------------------- 3a8ca1b28SThierry Reding 4a8ca1b28SThierry RedingBoth required and optional properties listed below must be defined 5a8ca1b28SThierry Redingunder node /cpus/cpu@0. 6a8ca1b28SThierry Reding 7a8ca1b28SThierry RedingRequired properties: 8a8ca1b28SThierry Reding- clocks: Must contain an entry for each entry in clock-names. 9a8ca1b28SThierry Reding See ../clocks/clock-bindings.txt for details. 10a8ca1b28SThierry Reding- clock-names: Must include the following entries: 11a8ca1b28SThierry Reding - cpu_g: Clock mux for the fast CPU cluster. 12a8ca1b28SThierry Reding - pll_x: Fast PLL clocksource. 13a8ca1b28SThierry Reding - pll_p: Auxiliary PLL used during fast PLL rate changes. 14a8ca1b28SThierry Reding - dfll: Fast DFLL clocksource that also automatically scales CPU voltage. 15a8ca1b28SThierry Reding 16a8ca1b28SThierry RedingOptional properties: 17a8ca1b28SThierry Reding- clock-latency: Specify the possible maximum transition latency for clock, 18a8ca1b28SThierry Reding in unit of nanoseconds. 19a8ca1b28SThierry Reding 20a8ca1b28SThierry RedingExample: 21a8ca1b28SThierry Reding-------- 22a8ca1b28SThierry Redingcpus { 23a8ca1b28SThierry Reding #address-cells = <1>; 24a8ca1b28SThierry Reding #size-cells = <0>; 25a8ca1b28SThierry Reding 26a8ca1b28SThierry Reding cpu@0 { 27a8ca1b28SThierry Reding device_type = "cpu"; 28a8ca1b28SThierry Reding compatible = "arm,cortex-a15"; 29a8ca1b28SThierry Reding reg = <0>; 30a8ca1b28SThierry Reding 31a8ca1b28SThierry Reding clocks = <&tegra_car TEGRA124_CLK_CCLK_G>, 32a8ca1b28SThierry Reding <&tegra_car TEGRA124_CLK_PLL_X>, 33a8ca1b28SThierry Reding <&tegra_car TEGRA124_CLK_PLL_P>, 34a8ca1b28SThierry Reding <&dfll>; 35c79a3ccbSJoseph Lo clock-names = "cpu_g", "pll_x", "pll_p", "dfll"; 36a8ca1b28SThierry Reding clock-latency = <300000>; 37a8ca1b28SThierry Reding }; 38a8ca1b28SThierry Reding 39a8ca1b28SThierry Reding <...> 40a8ca1b28SThierry Reding}; 41