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| author | qianfan Zhao <qianfanguijin@163.com> | 2022-05-14 11:19:23 +0800 |
|---|---|---|
| committer | Andre Przywara <andre.przywara@arm.com> | 2022-06-26 11:22:54 +0100 |
| commit | 47ca7b574faaa514677457e23a7197c47b0b597c (patch) | |
| tree | b492619b4e75d8ca69242444a5eefe4c73c03eb8 /arch/arm/cpu/armv7 | |
| parent | e008e5132f7e160320dcc0ffb8fe7fef5264aecd (diff) | |
| download | u-boot-47ca7b574faaa514677457e23a7197c47b0b597c.tar.gz | |
sunxi: psci: Fix sunxi_power_switch on sun8i-r40 platform
linux system will die if we offline one of the cpu on R40 based board:
eg: echo 0 > /sys/devices/system/cpu/cpu3/online
The reason is that the R40 version of sunxi_cpu_set_power always passes
0 for the CPU number, so we turn off CPU0, regardless of what CPU the
CPU_OFF request came for.
Fix this by passing the proper CPU number, as there are proper power
clamp registers for every of the four cores.
Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Diffstat (limited to 'arch/arm/cpu/armv7')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/psci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/psci.c b/arch/arm/cpu/armv7/sunxi/psci.c index d1bd6b9be4..e1d3638b5c 100644 --- a/arch/arm/cpu/armv7/sunxi/psci.c +++ b/arch/arm/cpu/armv7/sunxi/psci.c @@ -153,7 +153,7 @@ static void __secure sunxi_cpu_set_power(int cpu, bool on) sunxi_power_switch((void *)cpucfg + SUN8I_R40_PWR_CLAMP(cpu), (void *)cpucfg + SUN8I_R40_PWROFF, - on, 0); + on, cpu); } #else /* ! CONFIG_MACH_SUN7I && ! CONFIG_MACH_SUN8I_R40 */ static void __secure sunxi_cpu_set_power(int cpu, bool on) |