On 20/01/2023 15:10, Yann Sionneau wrote: > +static int __init setup_cpuinfo(void) > +{ > + int cpu; > + struct clk *clk; > + unsigned long cpu_freq = 1000000000; > + struct device_node *node = of_get_cpu_node(0, NULL); > + > + clk = of_clk_get(node, 0); > + if (IS_ERR(clk)) { > + printk(KERN_WARNING > + "Device tree missing CPU 'clock' parameter. Assuming frequency is 1GHZ"); > + goto setup_cpu_freq; > + } > + > + cpu_freq = clk_get_rate(clk); What about cpufreq? I don't think this is useful. Best regards, Krzysztof