[PATCH 1/3] clk: rcar-h2: fix sd0/sd1 divisor table
Ben Dooks
ben.dooks at codethink.co.uk
Fri Feb 7 04:55:53 EST 2014
On 07/02/14 06:43, Kuninori Morimoto wrote:
> Hi William, Ben, Laurent
>
>>>>>>> static const struct clk_div_table cpg_sd01_div_table[] = {
>>>>>>> + { 0, 2 }, { 1, 3 }, { 2, 4 }, { 3, 6 },
>>>>>>> + { 4, 8 },
>>>>>>>
>>>>>>> { 5, 12 }, { 6, 16 }, { 7, 18 }, { 8, 24 },
>>>>>>> { 10, 36 }, { 11, 48 }, { 12, 10 }, { 0, 0 },
>
> According to HW team, datasheet is correct.
> Some HW has above un-documented implementation indeed,
> but these are not supported.
> But, 0x0100 (x1/8) on SD0FC/SD1FC is now supported and documented in
> latest datasheet.
Thanks, we do not have a copy of that so cannot comment.
>>>> sdhi0 showed 156MHz output, and it seemed to work. So there is a
>>>> distinct possibility that the sdh clock also supports setting 12
>>>> for a /10
>
> According to HW there,
> SDHFC will be stopped if you set 0xC.
We'll look at re-working this patch and getting it re-sent.
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
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