Thread (13 messages) 13 messages, 5 authors, 2015-08-29

[RFC] ARM: EXYNOS: reset KFC cores when cpu is up

From: Chanho Park <hidden>
Date: 2015-07-15 02:31:27
Also in: linux-samsung-soc

Hi,

On Wed, Jul 15, 2015 at 10:46 AM, Krzysztof Kozlowski
[off-list ref] wrote:
On 15.07.2015 10:36, Chanho Park wrote:
quoted
The cpu booting of exynos5422 has been still broken since we discussed
it in last year[1]. I found this resetting codes from odroid-xu3 kernel of
hardkernel, it could help to boot 8 cores well. This patch need to have
more test like STR and other SoC especially exynos5800 which is variant
of exynos5422. If this patch is broken on exynos5800, I'll find another
way to check exynos5422.

This patch is top of my previous exynos5422 cpu ordering patch[2] and
need to enable CONFIG_EXYNOS5420_MCPM=y
1. Why the ordering patch is required? It seems unrelated...
Because it related with my booting log :)
2. I tried this already (as in vendor sources from
opensource.samsung.com) and it did not help on my Odroid. Are you sure
that this patch solely fixes the problem?
If you turned on CONFIG_DEBUG_LL, you'll need Joonyoung's patch to
correct uart address of exynos5422.
http://www.spinics.net/lists/linux-samsung-soc/msg37318.html

-- 
Best Regards,
Chanho Park
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