| Message ID | 1390333660-30573-2-git-send-email-chf.fritz@googlemail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 01/21/2014 01:47 PM, Christoph Fritz wrote: > This patch adds file omap37xx100.dtsi which includs a SoC specific table > for CPU OPP. > > Please keep in mind that am/dm37xx100 variants differ from am/dm37xx > SoCs without nomenclature marker prefix "100". This marker indicates > the maximum cpu frequency. 100 stands for 1 GHz-Cortex-A8, blank means > maximum 800 MHz. > > For more info, see Datasheet http://www.ti.com/lit/ds/sprs685d/sprs685d.pdf > section 7.2.1 "Device and Development-Support Tool Nomenclature". > > Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> > --- > arch/arm/boot/dts/omap37xx100.dtsi | 44 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 44 insertions(+) > create mode 100644 arch/arm/boot/dts/omap37xx100.dtsi > > diff --git a/arch/arm/boot/dts/omap37xx100.dtsi b/arch/arm/boot/dts/omap37xx100.dtsi > new file mode 100644 > index 0000000..064661e > --- /dev/null > +++ b/arch/arm/boot/dts/omap37xx100.dtsi > @@ -0,0 +1,44 @@ > +/* > + * Device Tree Source for OMAP37x SoC > + * > + * This file is licensed under the terms of the GNU General Public License > + * version 2. This program is licensed "as is" without any warranty of any > + * kind, whether express or implied. > + */ > + > +#include "omap3.dtsi" > + > +/ { > + aliases { > + serial3 = &uart4; > + }; > + > + cpus { > + /* AM/DM37xx */ > + cpu@0 { > + operating-points = < > + /* kHz uV */ > + 125000 975000 > + 250000 1075000 > + 500000 1100000 > + 600000 1140000 > + 800000 1270000 > + 1000000 1380000 This is valid even for 3630/DM3730 as well -> unfortunately - you cannot enable 1GHz without enabling ABB and AVS 1.5. There is a bunch of internal discussion with respect to lack of this information available.. but as it stands right now, I dont think this is valid. > + >; > + clock-latency = <300000>; /* From legacy driver */ > + }; > + }; > + > + ocp { > + /* uart4 is only available on CBP and CBC packages */ > + uart4: serial@49042000 { > + compatible = "ti,omap3-uart"; > + reg = <0x49042000 0x400>; > + interrupts = <80>; > + dmas = <&sdma 81 &sdma 82>; > + dma-names = "tx", "rx"; > + ti,hwmods = "uart4"; > + clock-frequency = <48000000>; > + }; > + }; > +}; > Further, we should be able to reuse 3630.dtsi for this.
diff --git a/arch/arm/boot/dts/omap37xx100.dtsi b/arch/arm/boot/dts/omap37xx100.dtsi new file mode 100644 index 0000000..064661e --- /dev/null +++ b/arch/arm/boot/dts/omap37xx100.dtsi @@ -0,0 +1,44 @@ +/* + * Device Tree Source for OMAP37x SoC + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include "omap3.dtsi" + +/ { + aliases { + serial3 = &uart4; + }; + + cpus { + /* AM/DM37xx */ + cpu@0 { + operating-points = < + /* kHz uV */ + 125000 975000 + 250000 1075000 + 500000 1100000 + 600000 1140000 + 800000 1270000 + 1000000 1380000 + >; + clock-latency = <300000>; /* From legacy driver */ + }; + }; + + ocp { + /* uart4 is only available on CBP and CBC packages */ + uart4: serial@49042000 { + compatible = "ti,omap3-uart"; + reg = <0x49042000 0x400>; + interrupts = <80>; + dmas = <&sdma 81 &sdma 82>; + dma-names = "tx", "rx"; + ti,hwmods = "uart4"; + clock-frequency = <48000000>; + }; + }; +};
This patch adds file omap37xx100.dtsi which includs a SoC specific table for CPU OPP. Please keep in mind that am/dm37xx100 variants differ from am/dm37xx SoCs without nomenclature marker prefix "100". This marker indicates the maximum cpu frequency. 100 stands for 1 GHz-Cortex-A8, blank means maximum 800 MHz. For more info, see Datasheet http://www.ti.com/lit/ds/sprs685d/sprs685d.pdf section 7.2.1 "Device and Development-Support Tool Nomenclature". Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> --- arch/arm/boot/dts/omap37xx100.dtsi | 44 ++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 arch/arm/boot/dts/omap37xx100.dtsi