AM335x RTC disable mode SW setting

Daniel777

Prodigy 60 points

Hi!

Reference to this question: https://e2e.ti.com/support/arm/sitara_arm/f/791/t/368679

I've summed up the following steps for RTC disable mode:

Step 1. Remove RTC node from am33xx.dtsi.

Step 2. disable kernel config "CONFIG_RTC_DRV_OMAP".

Step 3. Remove am33xx_l4_wkup__rtc from array am33xx_hwmod_ocp_ifs from kernel source code.

Is it correct software setting for AM335x RTC disable mode?

Thanks!

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi,

I will ask the software team to comment.

0 Yordan Kovachev over 10 years ago

TI__Guru**** 161600 points

Hi,

There are some things you've missed, which are described in the link you refer:
Step 1. DO NOT remove the RTC node from am33xx.dtsi. JUST KEEP IT'S status = "disabled" in am33xx.dtsi AND in the DTS file you use.
Step 2. Also disable:
CONFIG_RTC_LIB
CONFIG_RTC_CLASS
CONFIG_RTC_HCTOSYS
CONFIG_RTC_SYSTOHC
remove CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
And disable rtc interfaces
CONFIG_RTC_INTF_SYSFS
CONFIG_RTC_INTF_PROC
CONFIG_RTC_INTF_DEV

Step 3. CORRECT.

Best Regards,
Yordan

Processors

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AM335x RTC disable mode SW setting