[U-Boot] booting optee via SPL on imx6q

[Peng Fan]

Hi Shyam,

Did you configure loglevel for OP-TEE? If you configured, there should be some log out from OP-TEE.

Regards,
Peng.

> -----Original Message-----
> From: Shyam Saini [mailto:shyam at amarulasolutions.com]
> Sent: 2019年1月4日 19:47
> To: kever.yang at rock-chips.com
> Cc: u-boot at lists.denx.de; jens.wiklander at linaro.org; Peng Fan
> <peng.fan at nxp.com>; igor.opaniuk at linaro.org
> Subject: booting optee via SPL on imx6q
> 
> Hi Kever,
> 
> I've been trying to boot optee via SPL on my imx6 board.
> 
> I see you added booting optee via SPL support in this commit.
> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgit.d
> enx.de%2F%3Fp%3Du-boot.git%3Ba%3Dcommit%3Bh%3D70fe28763529391
> 94ccd9091379453a5ddb64ddb&data=02%7C01%7Cpeng.fan%40nxp.co
> m%7C2f8daccc8c104042b9b308d6723a4ddd%7C686ea1d3bc2b4c6fa92cd99
> c5c301635%7C0%7C1%7C636821992073649506&sdata=28oS2F741k6y
> AMGRZYpdI8pCidsy32XSPKHh3F48WVw%3D&reserved=0
> 
> I used fit image to do this. Here is my fit *.its file content
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpast
> e.ubuntu.com%2Fp%2F5FYkGqswX9%2F&data=02%7C01%7Cpeng.fan%
> 40nxp.com%7C2f8daccc8c104042b9b308d6723a4ddd%7C686ea1d3bc2b4c6f
> a92cd99c5c301635%7C0%7C1%7C636821992073659511&sdata=NrY2R
> RZp6tsve9vE8AO0ZW1KbbOuBHFUE8kJOGhz80c%3D&reserved=0
> 
> When I power on my imx6 board it hangs on spl_optee_entry function with
> this message "Jumping to U-Boot via OP-TEE"
> 
> Here are the complete logs:
> 
> # logs without reserved TZ RAM
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpast
> e.ubuntu.com%2Fp%2FwGxXSvPSkS%2F&data=02%7C01%7Cpeng.fan%
> 40nxp.com%7C2f8daccc8c104042b9b308d6723a4ddd%7C686ea1d3bc2b4c6f
> a92cd99c5c301635%7C0%7C1%7C636821992073659511&sdata=2R7B
> GEOl7xmbDNpsPcEn5xJpnkt1Qxg2JFBL82qnYrg%3D&reserved=0
> 
> # logs with reserved TZ RAM
> https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpast
> e.ubuntu.com%2Fp%2F7KgYJx8V9p%2F&data=02%7C01%7Cpeng.fan%4
> 0nxp.com%7C2f8daccc8c104042b9b308d6723a4ddd%7C686ea1d3bc2b4c6fa
> 92cd99c5c301635%7C0%7C1%7C636821992073659511&sdata=2fVNXo
> EfuncIdXFFRNeQcSsk%2FnfzwVSKbaITpj1HLK0%3D&reserved=0
> 
> I'm not sure why is it hanging. But when i put some print statements in optee
> os it doesn't print, so i guess something wrong from SPL side.
> 
> One more question, what is the significance of "mov pc, r3", here
> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgit.d
> enx.de%2F%3Fp%3Du-boot.git%3Ba%3Dblob%3Bf%3Dcommon%2Fspl%2Fspl
> _optee.S%3Bh%3D86fc3985465b4e4f6cf300923b0f8d6564e8be64%3Bhb%3
> D70fe2876352939194ccd9091379453a5ddb64ddb&data=02%7C01%7C
> peng.fan%40nxp.com%7C2f8daccc8c104042b9b308d6723a4ddd%7C686ea1d
> 3bc2b4c6fa92cd99c5c301635%7C0%7C1%7C636821992073659511&sd
> ata=gu3VtK1m%2BMeGPwV8qJKxkOYLgEAMFcYSBpel5ZjV%2FG4%3D&r
> eserved=0
> 
> I compiled optee os with CFG_NS_ENTRY_ADDR=0x17800000  i.e, u-boot
> load address in my case.
> 
> Do you know what am i missing?
> 
> I'd really appreciate any help from you.
> 
> 
> Thanks a lot,
> Shyam