Linux Samsung SOC development
 help / color / mirror / Atom feed
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Peter Chubb <peter.chubb@nicta.com.au>, Chanho Park <parkch98@gmail.com>
Cc: kgene@kernel.org, jy0922.shim@samsung.com, cw00.choi@samsung.com,
	linux-samsung-soc@vger.kernel.org,
	javier.martinez@collabora.co.uk, khilman@linaro.org,
	sjoerd.simons@collabora.co.uk, heesub.shin@samsung.com,
	m.szyprowski@samsung.com, b.zolnierkie@samsung.com,
	Chanho Park <chanho61.park@samsung.com>
Subject: Re: [PATCHv3] ARM: dts: add exynos5422-cpus.dtsi to correct cpu order
Date: Tue, 02 Jun 2015 21:02:23 +0900	[thread overview]
Message-ID: <556D9B4F.3070508@samsung.com> (raw)
In-Reply-To: <84k2vmwzxc.wl-peter.chubb@nicta.com.au>

W dniu 02.06.2015 o 12:29, Peter Chubb pisze:
>>>>>> "Chanho" == Chanho Park <parkch98@gmail.com> writes:
> 
> Chanho> The odroid-xu3 board which is based on exynos5422 not
> Chanho> exynos5800 is booted from cortex-a7 core unlike
> Chanho> exynos5800. The odroid-xu3's cpu order is quite strange. cpu0
> Chanho> and cpu5-7 are cortex-a7 cores and cpu1-4 are cortex-a15
> Chanho> cores. To correct this mis-odering, I added exynos5422.dtsi
> Chanho> and reversing cpu orders from exynos5420. Now, cpu0-3 are
> Chanho> cortex-a7 and cpu4-7 are cortex-a15.
> 
> Does this patch make any difference?  CPUs are numbered in the kernel
> in the order they're enumerated; with this patch or using the old dts
> I see the CPUs numbered the same after boot.  And only 5 of the 8 come
> up: processor 0 is an A7; processors 1 through 4 are A15.

In my case (Odroid XU3 Lite, next-20150529) the patch makes difference.
The A7 is 0-3 and A15 is 4-7 so the patch changes the order.

Best regards,
Krzysztof

  reply	other threads:[~2015-06-02 12:02 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-01 12:24 [PATCHv3] ARM: dts: add exynos5422-cpus.dtsi to correct cpu order Chanho Park
2015-06-01 23:55 ` Krzysztof Kozlowski
2015-07-01 13:35   ` Chanho Park
2015-07-01 23:50     ` Krzysztof Kozlowski
2015-06-02  3:29 ` Peter Chubb
2015-06-02 12:02   ` Krzysztof Kozlowski [this message]
2015-06-02 12:49   ` Chanho Park

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=556D9B4F.3070508@samsung.com \
    --to=k.kozlowski@samsung.com \
    --cc=b.zolnierkie@samsung.com \
    --cc=chanho61.park@samsung.com \
    --cc=cw00.choi@samsung.com \
    --cc=heesub.shin@samsung.com \
    --cc=javier.martinez@collabora.co.uk \
    --cc=jy0922.shim@samsung.com \
    --cc=kgene@kernel.org \
    --cc=khilman@linaro.org \
    --cc=linux-samsung-soc@vger.kernel.org \
    --cc=m.szyprowski@samsung.com \
    --cc=parkch98@gmail.com \
    --cc=peter.chubb@nicta.com.au \
    --cc=sjoerd.simons@collabora.co.uk \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox