| Message ID | 1450435896-6026-1-git-send-email-geert+renesas@glider.be (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Simon Horman |
| Headers | show |
On Fri, Dec 18, 2015 at 11:51 AM, Geert Uytterhoeven <geert+renesas@glider.be> wrote: > On r8a7740/armadillo, actual clock rates are ca. 4% lower than reported > by /sys/kernel/debug/clk/clk_summary. Correct the extal1 frequency from > 25 MHz to 24 MHz to fix this. > > This matches the Armadillo-800 EVA Product Manual, which claims the main > crystal runs at 24 MHz, and the old legacy/reference board code. Ping? I think we want this applied to -stable and -ltsi, too. > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> > --- > arch/arm/boot/dts/r8a7740-armadillo800eva.dts | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts > index 5845e4e6c700568f..13d27e3985378552 100644 > --- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts > +++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts > @@ -180,7 +180,7 @@ > }; > > &extal1_clk { > - clock-frequency = <25000000>; > + clock-frequency = <24000000>; > }; > &extal2_clk { > clock-frequency = <48000000>; > -- > 1.9.1 Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@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 -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts index 5845e4e6c700568f..13d27e3985378552 100644 --- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts +++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts @@ -180,7 +180,7 @@ }; &extal1_clk { - clock-frequency = <25000000>; + clock-frequency = <24000000>; }; &extal2_clk { clock-frequency = <48000000>;
On r8a7740/armadillo, actual clock rates are ca. 4% lower than reported by /sys/kernel/debug/clk/clk_summary. Correct the extal1 frequency from 25 MHz to 24 MHz to fix this. This matches the Armadillo-800 EVA Product Manual, which claims the main crystal runs at 24 MHz, and the old legacy/reference board code. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- arch/arm/boot/dts/r8a7740-armadillo800eva.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)