| Message ID | 1489423399-3824-3-git-send-email-bgolaszewski@baylibre.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
* Bartosz Golaszewski <bgolaszewski@baylibre.com> [170313 09:45]: > This board has an external oscillator supplying the reference clock > signal for SATA. Its rate is fixed at 100Mhz. Add a corresponding > device tree node. Is this the 100MHz clock from PCIe? Just like on dm814x-evm as noted in the workaround thread below: http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/181083/671141 Regards, Tony > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> > --- > arch/arm/boot/dts/dm8168-evm.dts | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts > index 0bf55fa..f13e214 100644 > --- a/arch/arm/boot/dts/dm8168-evm.dts > +++ b/arch/arm/boot/dts/dm8168-evm.dts > @@ -25,6 +25,12 @@ > regulator-min-microvolt = <3300000>; > regulator-max-microvolt = <3300000>; > }; > + > + sata_refclk: fixedclock0 { > + #clock-cells = <0>; > + compatible = "fixed-clock"; > + clock-frequency = <100000000>; > + }; > }; > > &dm816x_pinmux { > -- > 2.9.3 >
2017-03-13 22:34 GMT+01:00 Tony Lindgren <tony@atomide.com>: > * Bartosz Golaszewski <bgolaszewski@baylibre.com> [170313 09:45]: >> This board has an external oscillator supplying the reference clock >> signal for SATA. Its rate is fixed at 100Mhz. Add a corresponding >> device tree node. > > Is this the 100MHz clock from PCIe? Just like on dm814x-evm as noted > in the workaround thread below: > > http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/181083/671141 > > Regards, > > Tony > Hi Tony, these signals come from a TI CDCM61002 (U30 on the board's schematics). It's hardwired to 100mHZ output. Thanks, Bartosz Golaszewski
* Bartosz Golaszewski <bgolaszewski@baylibre.com> [170314 08:03]: > 2017-03-13 22:34 GMT+01:00 Tony Lindgren <tony@atomide.com>: > > * Bartosz Golaszewski <bgolaszewski@baylibre.com> [170313 09:45]: > >> This board has an external oscillator supplying the reference clock > >> signal for SATA. Its rate is fixed at 100Mhz. Add a corresponding > >> device tree node. > > > > Is this the 100MHz clock from PCIe? Just like on dm814x-evm as noted > > in the workaround thread below: > > > > http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/181083/671141 > > > > Regards, > > > > Tony > > > > Hi Tony, > > these signals come from a TI CDCM61002 (U30 on the board's > schematics). It's hardwired to 100mHZ output. Oh OK thanks. Tony
diff --git a/arch/arm/boot/dts/dm8168-evm.dts b/arch/arm/boot/dts/dm8168-evm.dts index 0bf55fa..f13e214 100644 --- a/arch/arm/boot/dts/dm8168-evm.dts +++ b/arch/arm/boot/dts/dm8168-evm.dts @@ -25,6 +25,12 @@ regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; }; + + sata_refclk: fixedclock0 { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <100000000>; + }; }; &dm816x_pinmux {
This board has an external oscillator supplying the reference clock signal for SATA. Its rate is fixed at 100Mhz. Add a corresponding device tree node. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> --- arch/arm/boot/dts/dm8168-evm.dts | 6 ++++++ 1 file changed, 6 insertions(+)