Thread (37 messages) 37 messages, 4 authors, 2016-06-17

[PATCH 07/13] ARM: dts: r8a7792: initial SoC device tree

From: geert@linux-m68k.org (Geert Uytterhoeven)
Date: 2016-06-17 06:27:24
Also in: linux-devicetree, linux-renesas-soc

Hi Morimoto-san,

On Fri, Jun 17, 2016 at 4:14 AM, Kuninori Morimoto
[off-list ref] wrote:
quoted
quoted
Right, I had forgotten about that.
Fortunately the clk-rcar-gen2 driver has a sane failure mode for this case ;-)

it seems the RCAN clock can just be modeled as a fixed clock. However,
its divider value isn't clear to me, as 15.9 MHz cannot be generated from PLL1
using an integer divider. Morimoto-san, can you please ask for clarification?
OK.
Now, I asked to HW team about that.
Please wait.
RCAN divider is fixed for 1/49

PLL1 (= 1560MHz)
  -> 1/2 (= 780MHz)
    -> RCAN divider 1/49 (= 15.9183..MHz)

Is this clear for you ?
Thanks, that's exactly what we need to know.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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