| Message ID | 20170613231623.28353-5-grygorii.strashko@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
* Grygorii Strashko <grygorii.strashko@ti.com> [170613 16:20]: > This patch allows to test CPTS HW_TS_PUSH functionality on am335x boards > > below sequence of commands will enable Timer7 to trigger 1sec > periodic pulses on CPTS HW4_TS_PUSH input pin: > > # echo 1000000000 > /sys/class/pwm/pwmchip0/pwm0/period > # echo 500000000 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle > # echo 1 > /sys/class/pwm/pwmchip0/pwm0/enable > # ./ptp/testptp -e 10 -i 3 > external time stamp request okay > event index 3 at 1493259028.376600798 > event index 3 at 1493259029.377170898 > event index 3 at 1493259030.377741039 > event index 3 at 1493259031.378311139 > event index 3 at 1493259032.378881279 > event index 3 at 1493259033.379451424 > event index 3 at 1493259034.380021520 > event index 3 at 1493259035.380591660 > event index 3 at 1493259036.381161765 > event index 3 at 1493259037.381731909 Cool :) Acked-by: Tony Lindgren <tony@atomide.com> -- To unsubscribe from this list: send the line "unsubscribe linux-omap" 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/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts index 935ed17..997f5b4 100644 --- a/arch/arm/boot/dts/am335x-boneblack.dts +++ b/arch/arm/boot/dts/am335x-boneblack.dts @@ -25,4 +25,10 @@ oppnitro@1000000000 { opp-supported-hw = <0x06 0x0100>; }; + + pwm7: dmtimer-pwm { + compatible = "ti,omap-dmtimer-pwm"; + ti,timers = <&timer7>; + #pwm-cells = <3>; + }; }; diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 1c37a7c..ec36197 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts @@ -164,6 +164,13 @@ system-clock-frequency = <12000000>; }; }; + + pwm7: dmtimer-pwm { + compatible = "ti,omap-dmtimer-pwm"; + ti,timers = <&timer7>; + #pwm-cells = <3>; + }; + }; &am33xx_pinmux { diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 9e24294..1a64b80 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -864,6 +864,7 @@ ranges; syscon = <&scm_conf>; status = "disabled"; + cpts-ext-ts-inputs = <4>; davinci_mdio: mdio@4a101000 { compatible = "ti,cpsw-mdio","ti,davinci_mdio"; diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index a120ae8..6d3dcbc 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -459,7 +459,7 @@ CONFIG_CPCAP_ADC=m CONFIG_TI_AM335X_ADC=m CONFIG_BMP280=m CONFIG_PWM=y -CONFIG_PWM_OMAP_DMTIMER=m +CONFIG_PWM_OMAP_DMTIMER=y CONFIG_PWM_TIECAP=m CONFIG_PWM_TIEHRPWM=m CONFIG_PWM_TWL=m
This patch allows to test CPTS HW_TS_PUSH functionality on am335x boards below sequence of commands will enable Timer7 to trigger 1sec periodic pulses on CPTS HW4_TS_PUSH input pin: # echo 1000000000 > /sys/class/pwm/pwmchip0/pwm0/period # echo 500000000 > /sys/class/pwm/pwmchip0/pwm0/duty_cycle # echo 1 > /sys/class/pwm/pwmchip0/pwm0/enable # ./ptp/testptp -e 10 -i 3 external time stamp request okay event index 3 at 1493259028.376600798 event index 3 at 1493259029.377170898 event index 3 at 1493259030.377741039 event index 3 at 1493259031.378311139 event index 3 at 1493259032.378881279 event index 3 at 1493259033.379451424 event index 3 at 1493259034.380021520 event index 3 at 1493259035.380591660 event index 3 at 1493259036.381161765 event index 3 at 1493259037.381731909 Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> --- arch/arm/boot/dts/am335x-boneblack.dts | 6 ++++++ arch/arm/boot/dts/am335x-evm.dts | 7 +++++++ arch/arm/boot/dts/am33xx.dtsi | 1 + arch/arm/configs/omap2plus_defconfig | 2 +- 4 files changed, 15 insertions(+), 1 deletion(-)