Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 6 Mar 2015 02:36:18 +0900 | Subject | Re: [PATCH v5 1/9] arm64: dts: exynos: Add dts files for 64-bit Exynos5433 SoC | From | Chanwoo Choi <> |
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Hi,
On Fri, Mar 6, 2015 at 2:04 AM, Mark Rutland <mark.rutland@arm.com> wrote: > Hi, > > [...] > >> >> + psci { >> >> + compatible = "arm,psci"; >> >> + method = "smc"; >> >> + cpu_off = <0x84000002>; >> >> + cpu_on = <0xC4000003>; >> >> + }; >> > >> > Back at v2 you mentioned that CPU_OFF wasn't working [1]. >> > >> > Do both CPU_ON and CPU_OFF work for all CPUs, including the boot CPU? >> >> The CPU1 ~ CPU7 are well woking about CPU_ON/OFF. >> CPU0 (boot CPU) is only well working for CPU_OFF. >> But when I try to turn on the CPU0 after CPU_OFF, I failed it. > > That's rather worrying. Can you look into what's going on here? I'd > rather not have dts describing things which are known to be broken.
The board dts don't include any node for CPU_ON/OFF. When I try to turn on the CPU0 (boot CPU), fail to turn on and lockup happen. After lockup happen, I cannot use the console.
> >> > I take it CPUs boot at EL2? > > Do the CPUs boot at EL1 or EL2?
Unfortunately, I cannot check the secure firmware for Exynos5433 SoC. I think that a few SoC provider probably would know it.
[snip]
Thanks, Chanwoo Choi
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