Part Number:DRA71
Tool/software: Linux
Team
We are configuring the PWMSS3 in IPU1.
It works fine running IPU1 firmware and A15 U-Boot, but when A15 jumps from U-Boot to Kernel (Starting kernel message before any log displaying) PWM shows a glitch after that it works fine again.
Our DTS related bindings
&ehrpwm2 {
ti,late-attach;
ti,no-idle-on-init;
ti,no-reset-on-init;
ti,no-idle;
};
&ehrpwm2_tbclk {
/delete-property/ clocks; /* It avoids the omap_hwmod to try to initialize it and stop it. This tbclk is already up and running from the ipu1*/
}; /*With or without it, glitch happens*/
&epwmss2{
ti,late-attach;
ti,no-idle-on-init;
ti,no-reset-on-init;
ti,no-idle;
};Reading PWM registers from IPU1 side to analyze this issue, it likes as pwm is suffering a sudden reset, and then keeps counting.
Our platform based on Android SDK 6AO.1.0 (A15) and ti-processor-sdk-rtos-automotive-dra7xx-evm-04.00.00.04 (IPU1)
Could you provide any hints
Regards