[U-Boot] booting optee via SPL on imx6q

[Peng Fan]

I did not try SPL + OPTEE before, so could not provide exact information. Did your OP-TEE work with non-SPL, I mean use normal uboot to boot OP-TEE?
Also in OP-TEE, does the CONSOLE_UART_BASE is configured correctly?

Regards,
Peng.

> -----Original Message-----
> From: Shyam Saini [mailto:shyam at amarulasolutions.com]
> Sent: 2019年1月5日 17:44
> To: Peng Fan <peng.fan at nxp.com>
> Cc: kever.yang at rock-chips.com; u-boot at lists.denx.de;
> jens.wiklander at linaro.org; igor.opaniuk at linaro.org
> Subject: Re: booting optee via SPL on imx6q
> 
> Hi Peng,
> 
> Thanks for replying.
> 
> > Did you configure loglevel for OP-TEE? If you configured, there should be
> some log out from OP-TEE.
> 
> Yes, I did. Its set to log level 4.
> 
> 
> Best Regards,
> Shyam
> 
> 
> > > -----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%2Fgi
> > > t.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%2Fp
> > > ast
> 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%2Fp
> > > ast
> 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%2Fp
> > > ast
> > >
> 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%2Fgi
> > > t.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
> 
> 
> 
> --
> Shyam Saini
> Linux Kernel Engineer | Amarula Solutions Linux Netfilter Contributor | FOSS
> Enthusiast Hyderabad, India.