how do you mount an SD card on SD card socket 1 and how do you mount USB stick on i.MX28EVK

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how do you mount an SD card on SD card socket 1 and how do you mount USB stick on i.MX28EVK

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dn
Contributor I

Is there a way to mount an SD card on SD card socket 1?  Also, is there a way to mount an USB stick on the USB port?  I haven't been able to mount either one in Linux.

 

When I insert the an SD card in card socket 1, I don't see an mmcblk device in the /dev directory for the SD card.  The same thing goes for the USB stick.  I don't see an sda device for the USB stick. 

 

So far,  I can mount mmcblk0p1 from SD card socket 0.

 

Do I need to configure something in LTIB?

 

- Dana

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BillRandle
Contributor II

One thing we noticed is that a USB stick is not auto-mounted if no partition is present. In the example about, it shows " sda: sda1" in the log file. Several USB sticks we tried just report " sda:" and those will not automount.

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YS
Contributor IV

After ssp1 boot option, you should see Kernel message when you plug SD memory card into slot1. My iMX28EVK shows;

root@freescale ~$ mmc1: new SDHC card at address e624
mmcblk1: mmc1:e624 SD04G 3.69 GiB
 mmcblk1: p1 p2 p3

You can mount partition like /dev/mntblk1p3 /mnt.

I don't know your USB trouble. I could mount USB stick either on standard Linux SD memory (MX28EVK LINUX REVD, Linux freescale 2.6.31-855-ge06778) or my rebuild Linux image from L2.6.35_10.12.01_SDK_source_bundle.tar.gz (Linux freescale 2.6.35.3-571-gcca29a0).

The Kernel message when I plugged a USB stick on socket J81 ("USB Host") is shown below.

usb 2-1: new high speed USB device using fsl-ehci and address 2
usb 2-1: configuration #1 chosen from 1 choice
scsi0 : SCSI emulation for USB Mass Storage devices
scsi 0:0:0:0: Direct-Access     SanDisk  Cruzer Pro       6.52 PQ: 0 ANSI: 0 CCS
sd 0:0:0:0: [sda] 1975295 512-byte logical blocks: (1.01 GB/964 MiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] Assuming drive cache: write through
 sda: sda1
sd 0:0:0:0: [sda] Assuming drive cache: write through
sd 0:0:0:0: [sda] Attached SCSI removable disk

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YS
Contributor IV

To change SSP1 setting, open your LTIB (./ltib -m config) then choose "Package List --->" screen. You will see

 --- Platform specific package selection
 [ ]imx-test
 [ ]imx-lib
 [*]kobs-ng
 [*]boot stream
 [ ]Using MDDR at boot stream
 (noinitrd console=ttyAM0,115200 root=/dev/mmcblk0p3 rw rootwait ip=no
 (noinitrd console=ttyAM0,115200 ubi.mtd=1 root=ubi0.rootfs0 rootfstyp
 (noinitrd console=ttyAM0,115200 fec_mac=00:08:02:6B:A3:1A root=/dev/n
 (noinitrd console=ttyAM0,115200 root=/dev/ram0 rdinit=/sbin/init fec_

Bottom four lines are kernel boot parameter definitions. Top one is default boot mode, other 3 lines are optional boot mode (when you press KEY1-KEY3 on bootup). Choose top line and change the definision from

 noinitrd console=ttyAM0,115200 root=/dev/mmcblk0p3 rw rootwait ip=none gpmi

to

 noinitrd console=ttyAM0,115200 root=/dev/mmcblk0p3 rw rootwait ip=none ssp1

Then exit LTIB, reconfigure the Linux build.

 ./ltib -p boot_stream.spec -m prep
 ./ltib -p boot_stream.spec -m scbuild
 ./ltib -p boot_stream.spec -m scdeploy

Write new boot image then you should be able to use socket 1 for SD/SDIO slot.

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sureshbabu1z
Contributor I

DIP SWITCH Settings need to be select 1010 (SSP1(SD1))  for Boot Mode

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katte
Contributor II

You need to specify ssp1 and remove gpmi on your kernel command line for enable it.

The SD card socket 1 use the same pin of nand flash.

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