From a41b12cd7b8ffa1af1d7b0bc5eae799acd4f86da Mon Sep 17 00:00:00 2001 From: Jingle Hsu Date: Tue, 11 Aug 2020 20:48:45 +0800 Subject: xeon_sp/cpx: Enable ACPI P-state support Implement ACPI P-state support to enable driver acpi_cpufreq. This patch leverages code from the Skylake project. Tested=On OCP Delta Lake cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 1501000 1500000 1400000 1300000 1200000 1100000 1000000 900000 800000 Change-Id: I3bf3ad7f82fbf196a2134a8138b10176fc8be2cc Signed-off-by: Jingle Hsu Reviewed-on: https://review.coreboot.org/c/coreboot/+/44404 Tested-by: build bot (Jenkins) Reviewed-by: Johnny Lin Reviewed-by: Angel Pons --- src/soc/intel/xeon_sp/cpx/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/soc/intel/xeon_sp/cpx/cpu.c') diff --git a/src/soc/intel/xeon_sp/cpx/cpu.c b/src/soc/intel/xeon_sp/cpx/cpu.c index db9dd4b3bd..6737bf032e 100644 --- a/src/soc/intel/xeon_sp/cpx/cpu.c +++ b/src/soc/intel/xeon_sp/cpx/cpu.c @@ -132,7 +132,7 @@ static void set_max_turbo_freq(void) wrmsr(IA32_PERF_CTL, perf_ctl); printk(BIOS_DEBUG, "cpu: frequency set to %d\n", - ((perf_ctl.lo >> 8) & 0xff) * CPU_BCLK); + ((perf_ctl.lo >> 8) & 0xff) * CONFIG_CPU_BCLK_MHZ); FUNC_EXIT(); } -- cgit v1.2.3