i.MX28 eMMC boot

[Matteo]

Hi,

I have a i.MX28 custom board and I'm trying to boot the linux kernel on an eMMC card connected to the ssp0 interface of the i.MX287.

I set in ltib the "mfg firmware profile" and I set the kernel command line as follow:

     console=ttyAM0,115200 rdinit=/linuxrc rw gpmi

I have copied the updater_ivt.sb in the profile directory of MFGTool and I have started to program my board.

MFGTool crashes and the console displays the message:

mmcblk0: unable to set block size to 512: -110

mmcblk: probe of mmc0:0001 failed with error -22

ln: /etc/mtab: File exists

disable turn off display

uuc 0.4 [built Jul  6 2012 14:40:37]

UTP: Waiting for device to appear

utp_mk_devnode: creating node '/dev/utp' with 10+222

cpu_id is 28

g_file_storage gadget: high speed config #1

UTP: received command 'mknod bloutp_exec: exit with status -22

ck,mmcblk0,/dev/mmcblk0,block'

class = 'block'

item = 'mmcblk0'

node = /dev/mmcblk0

type = block

UTP: running utp_mk_devnode(block,mmcblk0,/dev/mmcblk0,0x6000)

UTP: sending Non-success

Do you have any suggestions?? (I attach the complete console message).

Thanks,

Matteo.

Original Attachment has been moved to: iMX28_Boot.TXT.txt.zip

[Matteo]

Hi,

I post also the log of MFGTool:

1 - Panel A Finished <CMD/> type="find" body="Updater" file="" timeout="180" onError="" text="" SUCCESS code=0x0.

Panel A Start <CMD/> type="push" body="mknod block,mmcblk0,/dev/mmcblk0,block" file="" timeout="10" onError="" text="".

1 - Panel A Finished <CMD/> type="push" body="mknod block,mmcblk0,/dev/mmcblk0,block" file="" timeout="10" onError="" text="" FAIL code=0xffffffea.

Panel A: Command is not supported by device.,failed to run command: type="push" body="mknod block,mmcblk0,/dev/mmcblk0,block" file="" timeout="10" onError="" text="" 

2 - Panel A Finished processing SD(with uboot) <LIST/> : FAIL code=-22.

Thanks.

[LeonardoSandova]

Hi Mateo.

Have you tried using the default firmware? I have not done the MFGtool & i.MX28 but in theory you do not have to touch anything on the profile/xxxxx folder. Also, did you change something on the XML file?

Leo

[Matteo]

Hi Leonardo,

I hvae tried to use default firmware but it is not running. I think that it not running because I have not connected any voltage on the battery pin of the i.MX28 and I have to modify the power_prep.c boot file on my firmware to run the kernel.

I think that my problem is due to eMMC card. In the EVK board I load the kernel on a SD card end I boot from the this SD card. The problem is that the SD card have 4 data line instead my eMMC have 8 data line.

Is it possible that I have to load on ltib a specific driver for eMMC with 8 data line? In my opinion the SD/eMMC driver should identify whether the card have 4 or 8 data line.

Do you have any suggestion?

Thanks,

Matteo

[YixingKong]

Matteo

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.

Thanks,

Yixing

[YixingKong]

Matteo

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help please feel free to contact Freescale.

Thanks,
Yixing

[GraceH]

Hi Mateo.

In arch/arm/mach-mx28/device.c, mmc0 is only set with value MMC_CAP_4_BIT_DATA, mmc1 is set with value

MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA. You can modify mmc0_data

.caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA to try.

static struct mxs_mmc_platform_data mmc0_data = {

  .hw_init = mxs_mmc_hw_init_ssp0,

  .hw_release = mxs_mmc_hw_release_ssp0,

  .get_wp = mxs_mmc_get_wp_ssp0,

  .cmd_pullup = mxs_mmc_cmd_pullup_ssp0,

  .setclock = mxs_mmc_setclock_ssp0,

  .caps = MMC_CAP_4_BIT_DATA,

  .min_clk = 400000,

  .max_clk = 48000000,

  .read_uA        = 50000,

  .write_uA       = 70000,

  .clock_mmc = "ssp.0",

  .power_mmc = NULL,

  .fastpath_sz = 1024,

};

static struct mxs_mmc_platform_data mmc1_data = {

  .hw_init = mxs_mmc_hw_init_ssp1,

  .hw_release = mxs_mmc_hw_release_ssp1,

  .get_wp = mxs_mmc_get_wp_ssp1,

  .cmd_pullup = mxs_mmc_cmd_pullup_ssp1,

  .setclock = mxs_mmc_setclock_ssp1,

  .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA

  | MMC_CAP_DATA_DDR,

  .min_clk = 400000,

  .max_clk = 48000000,

  .read_uA        = 50000,

  .write_uA       = 70000,

  .clock_mmc = "ssp.1",

  .power_mmc = NULL,

  .fastpath_sz = 1024,

};

Grace