From: Dirk Behme <dirk.behme@de.bosch.com>
To: linux-sh@vger.kernel.org
Subject: Re: [RFC] clk: shmobile: r8a7795: Add SD divider support
Date: Fri, 29 Jan 2016 08:29:12 +0000 [thread overview]
Message-ID: <56AB22D8.3020002@de.bosch.com> (raw)
In-Reply-To: <1453465586-12807-1-git-send-email-dirk.behme@de.bosch.com>
On 29.01.2016 09:14, Wolfram Sang wrote:
>> Having the clock patch applied on top of your renesas/v8-sdhi branch [1] I
>> get
>>
>> root@salvator-x:/sys/kernel/debug/clk# cat clk_summary
>> clock enable_cnt prepare_cnt rate
>> --------------------------------------------------------
>> ...
>> .main 1 1 8333333
>> ...
>> .pll1 1 1 1599999936
>> .pll1_div2 2 2 799999968
>> hdmi 0 0 24999999
>> hdmi0 0 0 24999999
>> hdmi1 0 0 24999999
>> cl 0 0 16666666
>> sd3 0 0 99999996
>> sdif3 0 0 99999996
>> sd2 0 0 99999996
>> sdif2 0 0 99999996
>> sd1 0 0 49999998
>> sdif1 0 0 49999998
>> sd0 0 0 49999998
>> sdif0 0 0 49999998
>
> This is what I get (with your cleanup patch also applied):
>
> ...
> .main 1 1 8333333 0 0
> ...
> .pll1 1 1 1599999936 0 0
> .pll1_div2 3 3 799999968 0 0
> hdmi 0 0 24999999 0 0
> hdmi0 0 0 24999999 0 0
> hdmi1 0 0 24999999 0 0
> cl 0 0 16666666 0 0
> sd3 1 1 199999992 0 0
> sdif3 1 2 199999992 0 0
> sd2 0 0 49999998 0 0
> sdif2 0 0 49999998 0 0
> sd1 0 0 49999998 0 0
> sdif1 0 0 49999998 0 0
> sd0 1 1 49999998 0 0
> sdif0 1 2 49999998 0 0
>
> Could it be a firmware difference (i.e. bootloader trying to boot from eMMC and
> changing values)?
Yes, its U-Boot. I have U-Boot from rcar-3.0.3 BSP on the board and
verified that it configures exactly the clock configuration I gave above.
Best regards
Dirk
Bes
prev parent reply other threads:[~2016-01-29 8:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-22 12:26 [RFC] clk: shmobile: r8a7795: Add SD divider support Dirk Behme
2016-01-25 8:59 ` Geert Uytterhoeven
2016-01-25 9:11 ` Dirk Behme
2016-01-25 19:23 ` Wolfram Sang
2016-01-27 7:14 ` Wolfram Sang
2016-01-27 8:43 ` Geert Uytterhoeven
2016-01-27 9:01 ` Dirk Behme
2016-01-27 13:14 ` Dirk Behme
2016-01-29 8:14 ` Wolfram Sang
2016-01-29 8:29 ` Dirk Behme [this message]
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