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On Amlogic Meson GXBB & GXL platforms, the SCPI Cortex-M4 Co-Processor seems to be dependent on the FCLK_DIV2 to be operationnal. The issue occurred since v4.17-rc1 by freezing the kernel boot when the 'schedutil' cpufreq governor was selected as default : [ 12.071837] scpi_protocol scpi: SCP Protocol 0.0 Firmware 0.0.0 version domain-0 init dvfs: 4 [ 12.087757] hctosys: unable to open rtc device (rtc0) [ 12.087907] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 12.102241] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' But when disabling the MMC driver, the boot finished but cpufreq failed to change the CPU frequency : [ 12.153045] cpufreq: __target_index: Failed to change cpu frequency: -5 A bisect between v4.16 and v4.16-rc1 gave |
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.. | ||
axg-aoclk.c | ||
axg-aoclk.h | ||
axg.c | ||
axg.h | ||
clk-audio-divider.c | ||
clk-mpll.c | ||
clk-pll.c | ||
clk-regmap.c | ||
clk-regmap.h | ||
clkc.h | ||
gxbb-aoclk-32k.c | ||
gxbb-aoclk.c | ||
gxbb-aoclk.h | ||
gxbb.c | ||
gxbb.h | ||
Kconfig | ||
Makefile | ||
meson-aoclk.c | ||
meson-aoclk.h | ||
meson8b.c | ||
meson8b.h |