Problem waking up myd-ya157c from standby with rtc

[radoslavp]

Hi, i'm trying to wake up myd-ya157c from standby when the wakeup source is RTC.

First, i make sure the only wakeup source is RTC by manually disabling everything except RTC and confirm it with this command:

root@myir:~# find /sys/devices/ -name wakeup | xargs grep "enabled" /sys/devices/platform/soc/5c004000.rtc/power/wakeup:enabled

Then I put the board to sleep via this command:

echo +5 > /sys/class/rtc/rtc0/wakealarm && echo mem > /sys/power/state

It goes to sleep, but either doesn't wakeup after 5 seconds at all and is restarted by watchdog after a while:

root@myir:~# echo +5 > /sys/class/rtc/rtc0/wakealarm && echo mem > /sys/power/state [ 4332.531090] PM: suspend entry (deep) [ 4332.536835] Filesystems sync: 0.003 seconds [ 4332.551517] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 4332.558764] OOM killer disabled. [ 4332.562256] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 4332.569542] printk: Suspending console(s) (use no_console_suspend to debug) NOTICE: CPU: STM32MP157AAC Rev.Z NOTICE: Model: MYIRTECH MYD-YA157C-512D v2 Development Board INFO: Reset reason (0x214): INFO: IWDG2 Reset (rst_iwdg2) INFO: Using EMMC INFO: Instance 2 INFO: Boot used partition fsbl1 NOTICE: BL2: v2.2-r1.0(debug):v2.2-stm32mp-r1-17-g2681164a7 NOTICE: BL2: Built : 13:24:33, Nov 28 2022 INFO: Using crypto library 'stm32_crypto_lib' INFO: BL2: Doing platform setup INFO: RAM: DDR3-1066/888 bin G 2x2Gb 533MHz v1.44 INFO: Memory size = 0x20000000 (512 MB) INFO: BL2 runs SP_MIN setup INFO: BL2: Loading image id 4 INFO: Loading image id=4 at address 0x2ffed000 INFO: Image id=4 loaded: 0x2ffed000 - 0x2ffff000 INFO: BL2: Loading image id 5 INFO: Loading image id=5 at address 0xc0100000 INFO: STM32 Image size : 875362 INFO: Image id=5 loaded: 0xc0100000 - 0xc01d5b62 WARNING: Skip signature check (header option) NOTICE: ROTPK is not deployed on platform. Skipping ROTPK verification. NOTICE: BL2: Booting BL32 INFO: Entry point address = 0x2ffed000 INFO: SPSR = 0x1d3 NOTICE: SP_MIN: v2.2-r1.0(debug):v2.2-stm32mp-r1-17-g2681164a7 NOTICE: SP_MIN: Built : 13:24:33, Nov 28 2022 INFO: ARM GICv2 driver initialized INFO: stm32mp IWDG1 (12): Secure INFO: ETZPC: CRYP1 (9) could be non secure INFO: SP_MIN: Initializing runtime services INFO: SP_MIN: Preparing exit to normal world

U-Boot 2020.01-stm32mp-r1 (Nov 28 2022 - 12:54:26 +0000)

...

Or wakes up, but throws illegal access error and then waits till it's restarted by the watchdog:

root@myir:~# echo +5 > /sys/class/rtc/rtc0/wakealarm && echo mem > /sys/power/state [ 197.788998] PM: suspend entry (deep) [ 197.797025] Filesystems sync: 0.005 seconds [ 197.804233] Freezing user space processes ... (elapsed 0.001 seconds) done. [ 197.811466] OOM killer disabled. [ 197.814636] Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done. [ 197.822204] printk: Suspending console(s) (use no_console_suspend to debug) NOTICE: CPU: STM32MP157AAC Rev.Z NOTICE: Model: MYIRTECH MYD-YA157C-512D v2 Development Board INFO: Reset reason (0x810): INFO: System exits from STANDBY INFO: Using EMMC INFO: Instance 2 INFO: Boot used partition fsbl1 NOTICE: BL2: v2.2-r1.0(debug):v2.2-stm32mp-r1-17-g2681164a7 NOTICE: BL2: Built : 13:24:33, Nov 28 2022 INFO: Using crypto library 'stm32_crypto_lib' INFO: BL2: Doing platform setup INFO: RAM: DDR3-1066/888 bin G 2x2Gb 533MHz v1.44 INFO: BL2 runs SP_MIN setup INFO: BL2: Loading image id 4 INFO: Loading image id=4 at address 0x2ffed000 INFO: Image id=4 loaded: 0x2ffed000 - 0x2ffff000 INFO: BL2: Skip loading image id 5 NOTICE: BL2: Booting BL32 INFO: Entry point address = 0x2ffed000 INFO: SPSR = 0x1d3 NOTICE: SP_MIN: v2.2-r1.0(debug):v2.2-stm32mp-r1-17-g2681164a7 NOTICE: SP_MIN: Built : 13:24:33, Nov 28 2022 INFO: ARM GICv2 driver initialized INFO: stm32mp IWDG1 (12): Secure INFO: ETZPC: CRYP1 (9) could be non secure INFO: SP_MIN: Initializing runtime services INFO: SP_MIN: Preparing exit to normal world ERROR: Illegal access to 0xe0000000 in : ERROR: Non-Secure ERROR: Privilege ERROR: Read PANIC at PC : 0x2ffefeb5

Exception mode=0x00000016 at: 0xc09200d4

I tried the same with stm32mp157A-dk1 board by ST and it works.

I found out the issue has probably something to do with your bsp not providing fip image - or more specifically firmware configuration with "firewall" rules for access to RAM (via TZC chip). Why is that? Especially since that's already implemented in DK1 board by ST. I'm now looking into what's needed to implement it to your board, but it doesn't seem to be simple (i don't have much experience with this stuff), so could you help me? Or do you plan to implement it yourself? Thank you.

[radoslavp]

Also, what i don't understand is it works ok during normal boot - the issue only occurs when waking up from standby sleep. If the "firewall" rules for TZC chip are missing, because of the missing fip file, shouldn't it throw the error also during normal boot?

[radoslavp]

Hi, any progress with this?

[radoslavp]

Hi, sorry, but this isn't the best support - company i work for already bought some devices from you, so we would appreciate your assistance (I also wrote to your official support email before opening this topic, but didn't get any reply yet). Thank you.

[licy007]

Hi, You can directly send to the technical support email, and you will be able to reply. Sorry------------------------------------------------------------------ @.> 日　期：2023年01月16日 20:14:52 @.> @.>; @.> 主　题：Re: [MYiR-Dev/meta-myir-st] Problem waking up myd-ya157c from standby with rtc (Issue #1)

Hi, sorry, but this isn't the best support - company i work for already bought some devices from you, so we would appreciate your assistance (I also wrote to your official support email before opening this topic, but didn't get any reply yet). Thank you. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were assigned.Message ID: @.***>

[radoslavp]

Sorry, but what is your technical support email? I emailed you to your support mail, which i found in quick start guide for the board. I didn't get any reply to that email. Do you have any other technical support email? If yes could you point me to that? Thank you.

[123markhong]

Hello, you can send your questions to the following email address. @.***>

与 兴同乐 @.***

 

------------------ 原始邮件 ------------------ 发件人: "MYiR-Dev/meta-myir-st" @.>; 发送时间: 2023年1月17日(星期二) 下午5:34 @.>; 抄送: "与 @.**@.>; 主题: Re: [MYiR-Dev/meta-myir-st] Problem waking up myd-ya157c from standby with rtc (Issue #1)

Sorry, but what is your technical support email? I emailed you to your support mail, which i found in quick start guide for the board. I didn't get any reply to that email. Do you have any other technical support email? If yes could you point me to that? Thank you.

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were assigned.Message ID: @.***>

[radoslavp]

The address is not readable - at least on my side, what i see in your messages is: ***@***.***>

[123markhong]

Hello ,as follows: @.***>

---Original--- From: @.> Date: Tue, Jan 17, 2023 17:59 PM To: @.>; Cc: @.**@.>; Subject: Re: [MYiR-Dev/meta-myir-st] Problem waking up myd-ya157c fromstandby with rtc (Issue #1)

The address is not readable - at least on my side, what i see in your messages is: @.***>

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were assigned.Message ID: @.***>

[radoslavp]

Sorry, but can't you see it doesn't work? I guess, it shows properly in your email program, but please, take a look a this thread directly on github, cause here, the email is unreadable. @licy007, I found your email address in the git repository logs and sent you an email could you send me the support address to that email as a reply? Thank you.

[radoslavp]

Hi. Is the address where i should send this issue: support@myirtech.com?

[123markhong]

Hello, yes, this is the email of technical support.

与 兴同乐 @.***

 

------------------ 原始邮件 ------------------ 发件人: "MYiR-Dev/meta-myir-st" @.>; 发送时间: 2023年1月18日(星期三) 晚上10:53 @.>; 抄送: "与 @.**@.>; 主题: Re: [MYiR-Dev/meta-myir-st] Problem waking up myd-ya157c from standby with rtc (Issue #1)

Hi. Is the address where i should send this issue: @.***?

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were assigned.Message ID: @.***>

[radoslavp]

Ok, i sent you email with this issue there.

[radoslavp]

Hi. I still didn't get any reply to my email i sent to your support email. Did you get to this issue?

[licy007]

Hi, I am very sorry that we have received your question, but the engineer is on leave now because the Chinese New Year------------------------------------------------------------------ @.> 日　期：2023年01月30日 17:27:01 @.> @.>; @.> 主　题：Re: [MYiR-Dev/meta-myir-st] Problem waking up myd-ya157c from standby with rtc (Issue #1)

Hi. I still didn't get any reply to my email i sent to your support email. Did you get to this issue? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were mentioned.Message ID: @.***>

[radoslavp]

Ok, so, could he let me know, when he gets back to this? Thank you.