[U-Boot] [PATCH] arm: exynos: Use the generic lowlevel_init instead of the specific one

Alexander Graf agraf at suse.de
Tue Sep 20 08:05:15 CEST 2016



> Am 20.09.2016 um 07:51 schrieb Thomas Abraham <ta.omasab at gmail.com>:
> 
> Hi Alison,
> 
> 
>> On Mon, Sep 19, 2016 at 7:38 PM, Alexander Graf <agraf at suse.de> wrote:
>> 
>> 
>>> On 09.09.16 10:48, Alison Wang wrote:
>>> This patch is to use the the generic lowlevel_init instead of the
>>> specific one.
>>> 
>>> Signed-off-by: Alison Wang <alison.wang at nxp.com>
>> 
>> If I had to guess, I'd think they only had their own version because the
>> old one required a GIC.
> 
> I apologize for the delay.
> 
> The reason for using a custom version was to avoid enabling
> ARMV8_MULTIENTRY config option since the Exynos7 code was ready for
> it.
> 
>> 
>> Either way, since Samsung doesn't reply, I'm fine potentially breaking
>> their boards if that means that we can make progress for actively
>> maintained ones:
>> 
>>  Reviewed-by: Alexander Graf <agraf at suse.de>
> 
> This patch without the ARMV8_MULTIENTRY and ARMV8_SWITCH_TO_EL1 config
> options does not switch the boot CPU from EL3 to EL1. So it would be
> preferable to not merge this patch until ARMV8_MULTIENTRY  is enabled
> for Exynos7.

Why do you want to switch it to EL1 in the first place? Linux is very happy to live in EL2 - which is what we call it in by default.


Alex



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