Re: [EXT] Re: Problem on imx: add rom api support on imx8mn

[Michael Nazzareno Trimarchi <michael@amarulasolutions.com>]

Hi Ye

On Thu, Jul 15, 2021 at 10:19 AM Michael Nazzareno Trimarchi
<michael@amarulasolutions.com> wrote:
>
> Hi
>
> On Thu, Jul 15, 2021 at 9:56 AM Ye Li <ye.li@nxp.com> wrote:
> >
> > Hi Michael,
> >
> > > -----Original Message-----
> > > From: Michael Nazzareno Trimarchi <michael@amarulasolutions.com>
> > > Sent: Thursday, July 15, 2021 2:52 PM
> > > To: Peng Fan (OSS) <peng.fan@oss.nxp.com>
> > > Cc: Peng Fan <peng.fan@nxp.com>; U-Boot-Denx <u-boot@lists.denx.de>;
> > > Stefano Babic <sbabic@denx.de>; Ye Li <ye.li@nxp.com>; Fabio Estevam
> > > <festevam@gmail.com>; Jagan Teki <jagan@amarulasolutions.com>
> > > Subject: [EXT] Re: Problem on imx: add rom api support on imx8mn
> > >
> > > Caution: EXT Email
> > >
> > > Hi
> > >
> > > On Thu, Jul 15, 2021 at 8:47 AM Peng Fan (OSS) <peng.fan@oss.nxp.com>
> > > wrote:
> > > >
> > > >
> > > >
> > > > On 2021/7/8 17:15, Michael Nazzareno Trimarchi wrote:
> > > > > Hi Peng
> > > > >
> > > > > On Thu, Jul 8, 2021 at 9:12 AM Peng Fan (OSS) <peng.fan@oss.nxp.com>
> > > wrote:
> > > > >>
> > > > >> On 2021/7/4 1:24, Michael Nazzareno Trimarchi wrote:
> > > > >>> Hi all
> > > > >>>
> > > > >>> I have some problems that I have understood and fixed but I can
> > > > >>> not explain. Right now I have on imx8mn that can boot from boot0
> > > > >>> or boot1 partition after remove a condition in the
> > > > >>> is_boot_from_stream_device
> > > > >>>
> > > > >>> This is a boot from mmcblk0boot0 with some debug
> > > > >>>
> > > > >>> U-Boot SPL 2020.04-5.4.70-2.3.2+gf3bcbdfc62 (Jul 03 2021 -
> > > > >>> 17:00:27 +0000) power_bd71837_init
> > > > >>> DDRINFO: start DRAM init
> > > > >>> DDRINFO: DRAM rate 1600MTS
> > > > >>> DDRINFO:ddrphy calibration done
> > > > >>> DDRINFO: ddrmix config done
> > > > >>> Normal Boot
> > > > >>> Trying to boot from BOOTROM
> > > > >>> ROM API interface 2 from boot 131073
> > > > >>>
> > > > >>> Interface is 2 MMC and boot is 131073 and according to this
> > > > >>>
> > > > >>> static int is_boot_from_stream_device(u32 boot)
> > > > >>> +{
> > > > >>> +       u32 interface;
> > > > >>> +
> > > > >>> +       interface = boot >> 16;
> > > > >>> +       if (interface >= BT_DEV_TYPE_USB)
> > > > >>> +               return 1;
> > > > >>> +
> > > > >>> +       if (interface == BT_DEV_TYPE_MMC && (boot & 1))
> > > > >>> +               return 1;
> > > > >>> +
> > > > >>> +       return 0;
> > > > >>> +}
> > > > >>>
> > > > >>> means a stream interface but it does not boot.
> > > > >>>
> > > > >>> Boot from boot1 give 131072 that is boot1 this let device boot
> > > > >>> because
> > > > >>
> > > > >> Who gives 131073? Boot from boot1, you mean emmc boot partition0?
> > > > >>
> > > > >>> is_boot_from_stream_device is 0 and romapi use
> > > > >>> spl_romapi_load_image_seekable
> > > > >>>
> > > > >>> Remove boot & 1 condition let me boot from mmcblk0boot0 and
> > > > >>> mmcblk0boot1 without any problem
> > > > >>
> > > > >> Have you enabled emmc fastboot in fuse?
> > > > >>
> > > > >> boot & 1 is checking emmc fastboot. emmc fastboot mode is actually
> > > > >> stream device. If fastboot mode enabled, you need burn your
> > > > >> flash.bin into offset 0. Not 32KB offset.
> > > > >
> > > > > The offset is correct and the spl is starting on boot0 but then it
> > > > > should load the rest from
> > > > > boot0 block and not from usb. And why in case of boot1 the 1 is not
> > > > > present. I flash both on offset 0. Anyway I sent a patch
> > > >
> > > > I suspect you have eMMC fastboot enabled for boot0, but not for boot1.
> > >
> > > I think that was fuse this way
> > >
> > > # Alternative Boot ("Fast boot")
> > > # =>[BT_FUSE_SEL | eMMC boot | USDHC1 EMMC]
> > > FB: ucmd fuse prog -y 1 3 0x10002A00
> > > # =>[Fast boot | 8-bit DDR | MMC High speed | 1.8V | eMMC reset enable]
> > > FB: ucmd fuse prog -y 2 1 0x000000E7
> > > # =>[Fast Boot Ack enable]
> > > FB: ucmd fuse prog -y 2 2 0x00000001
> > > # boot_bus_width: 2 (8-bit), reset_boot_bus_width: 0, boot_mode: 2 (use dual
> > > data rate (DDR))
> > > FB: ucmd mmc bootbus 0 2 0 2
> > > # boot_ack: 1, boot_partition: 1 (Boot partition 1), 7 (User area),
> > > partition_access: No access to boot partition (default)
> > > FB: ucmd mmc partconf 0 1 1 0
> > >
> > > How is it supposed to work in this case?
> > >
> >
> > Above settings use the boot0 for fastboot. When you switch to boot1 for fastboot, did you change the
> > partconf setting to "mmc partconf 0 1 2 0"?
>
> I don't need to use fastboot. I mean the idea is if I boot from block0
> I want to continue there. BOOTROM
> fill the mode but then it should be able to not fail. Am I right?
>
> >
> > If the ROM boots from emmc fastboot, it will set the bit0 to 1 to indicate the fastboot. Since at this time, ROM
> > does not leave fastboot (just stop the clock), we should continue the stream mode read in SPL for FIT image load.
> > So below checking is correct.  If you continue the stream mode read, what is the failure do you meet?
> > The codes will read max 640KB data from ROM to search to FIT header. Can it get the header or not?
> >
>
> It does not find the header, in this case and it's not  problem of
> size of 640Kb (I have extend it). My impression
> is that is loading from mmcblk0 and not boot partition

U-Boot SPL 2020.04-00190-g4bad07fb61-dirty (Aug 06 2021 - 11:38:18 +0200)
spl_init
power_bd71837_init
DDRINFO: start DRAM init
DDRINFO: DRAM rate 1600MTS
DDRINFO:ddrphy calibration done
DDRINFO: ddrmix config done
>>SPL: board_init_r()
Normal Boot
Trying to boot from BOOTROM
ROM API interface 2 from boot 131073
Can't found uboot FIT image in 640K range
SPL: failed to boot from all boot devices
### ERROR ### Please RESET the board ###

This is my error but if I continue stream mode but it works in seakble mode.
2 is the MMC and boot mode is 131073

Michael

>
> Michael
>
> >         if (interface == BT_DEV_TYPE_MMC && (boot & 1))
> >                 return 1;
> >
> > Best regards,
> > Ye Li
> >
> > > Michael
> > >
> > >
> > >
> > > >
> > > > Regards,
> > > > Peng.
> > > >
> > > > >
> > > > > Michael
> > > > >
> > > > >>
> > > > >> Regards,
> > > > >> Peng.
> > > > >>
> > > > >>>
> > > > >>> mmc partconf 0
> > > > >>> EXT_CSD[179], PARTITION_CONFIG:
> > > > >>> BOOT_ACK: 0x0
> > > > >>> BOOT_PARTITION_ENABLE: 0x1
> > > > >>> PARTITION_ACCESS: 0x0
> > > > >>>
> > > > >>> and the board was fused already.
> > > > >>>
> > > > >>> Any idea why?
> > > > >>>
> > > > >>> Michael
> > > > >>>
> > > > >
> > > > >
> > > > >
> > >
> > >
> > >
> > > --
> > > Michael Nazzareno Trimarchi
> > > Co-Founder & Chief Executive Officer
> > > M. +39 347 913 2170
> > > michael@amarulasolutions.com
> > > __________________________________
> > >
> > > Amarula Solutions BV
> > > Joop Geesinkweg 125, 1114 AB, Amsterdam, NL T. +31 (0)85 111 9172
> > > info@amarulasolutions.com
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>
>
>
> --
> Michael Nazzareno Trimarchi
> Co-Founder & Chief Executive Officer
> M. +39 347 913 2170
> michael@amarulasolutions.com
> __________________________________
>
> Amarula Solutions BV
> Joop Geesinkweg 125, 1114 AB, Amsterdam, NL
> T. +31 (0)85 111 9172
> info@amarulasolutions.com
> www.amarulasolutions.com



-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael@amarulasolutions.com
__________________________________

Amarula Solutions BV
Joop Geesinkweg 125, 1114 AB, Amsterdam, NL
T. +31 (0)85 111 9172
info@amarulasolutions.com
www.amarulasolutions.com