[U-Boot] booting optee via SPL on imx6q

[Peng Fan]

+Bryan, might could provide some information.

> -----Original Message-----
> From: Shyam Saini [mailto:shyam at amarulasolutions.com]
> Sent: 2019年1月5日 18:55
> To: Peng Fan <peng.fan at nxp.com>; Kever Yang <kever.yang at rock-chips.com>
> Cc: u-boot at lists.denx.de; jens.wiklander at linaro.org; igor.opaniuk at linaro.org
> Subject: Re: booting optee via SPL on imx6q
> 
> On Sat, Jan 5, 2019 at 3:24 PM Peng Fan <peng.fan at nxp.com> wrote:
> >
> > 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?
> 
> Yes, I've already booted optee via u-boot (proper). It boots fine.
> 
> > Also in OP-TEE, does the CONSOLE_UART_BASE is configured correctly?
> 
> Yes, i did. Its UART4_BASE in case of my board and its set.
> I can confirm this because I booted same optee image via u-boot
> (proper) and  I can see all the logs.
> 
> If we assume that there is some issue with optee then it should have
> produced least some minimal logs, but there are no logs at all.
> 
> 
> Best regards,
> Shyam
> 
> 
> > 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.
> 
> 
> 
> --
> Shyam Saini
> Linux Kernel Engineer | Amarula Solutions Linux Netfilter Contributor | FOSS
> Enthusiast Hyderabad, India.