Re: [RFC 08/17] ARM: mvebu: remove custom .init_time hook

From: Sebastian Hesselbarth
Date: Fri Aug 23 2013 - 08:13:37 EST


On 08/23/13 13:39, Gregory CLEMENT wrote:
On 23/08/2013 12:32, Sebastian Hesselbarth wrote:
On 08/23/13 12:06, Gregory CLEMENT wrote:
On 20/08/2013 04:04, Sebastian Hesselbarth wrote:
With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

As a feared it won't work on Armada XP. You moved coherency_init(), and
l2x0_of_init() in the init_machine hook. However init_machine is an
arch_initcall, and as all the initcall it is called at the end of the
do_basic_setup() which is called after smp_prepare_cpus(). The issue is
that smp_prepare_cpus need coherency (and I think L2 cache) already enable.

Ok, I see. I remember mvebu smp relies on mbus mappings also? Can you
try below as replacement for the mach-mvebu/armada-370-xp.c changes?

It will move coherency_init(), l2x0_of_init(), and mvebu_mbus_dt_init()
to .init_early hook.


I can't test it, because I don't receive the patch 1 and 2 neither directly
or through linux-arm-kernel (it should have been bounced), or even at
https://github.com/shesselba/linux-dove.git

If you don't want to send them again, could you at least push our branch on your
github?

Gregory,

I pushed a branch containing the latest state to
https://github.com/shesselba/linux-dove.git arm-clk-of-init

It still contains the changes to drivers/clk.c, that will become
obsolete, if there are no objections against Stephen's tegra patch.

Sebastian

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