Programming 64GB eMMC (Odroid-U3)

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Programming 64GB eMMC (Odroid-U3)

Postby safeman » Sun May 08, 2016 7:50 pm

Are you aware of any issues programming 64GB eMMC?

I'm on debian and using a Transcend USB SD card adapter as recommended by Hardkernel. I've used it to program SD cards before (eg for Raspberry Pi) but don't think I've programmed an eMMC as these came pre-loaded.

I read elsewhere this can be an issue, and have followed the instructions for Odroid-U3, but it doesn't work: no HDMI signal on boot, blue LED solid on. I haven't tried a serial cable yet but this post (admittedly about the XU3 rather than U3) suggests that isn't going to work either so I want to check if you are aware of this issue, and if you have any suggestions. Thanks.

UPDATE: using a serial cable from a Windows machine I have a very primitive shell. I'm not sure what it is, but obviously it is not what I need (I can't execute the final commands to burn the eMMC boot for example). If I type "help" I get a list of commands, one of which is a memory dump. See below. It is clear that the eMMC is not quite as needed, although something is booting.

So I guess the issue is indeed some tweak needed to program a 64GB eMMC. Please advise if you can! Thanks.

$this->bbcode_second_pass_code('', '
Odroid # sh
HUSH_VERSION=0.01

Odroid # ls
ls - list files in a directory (default /)

Usage:
ls <interface> [<dev[:part]> [directory]]
- List files in directory 'directory' of partition 'part' on
device type 'interface' instance 'dev'.

Odroid # cd /boot
Unknown command 'cd' - try 'help'

Odroid # ls /home
** No device specified **

Odroid # md 0
00000000:data abort
pc : [<bfe97bbc>] lr : [<bfe97b90>]
reloc pc : [<43e4bbbc>] lr : [<43e4bb90>]
sp : bae46d78 ip : 00000030 fp : 00000000
r10: 00000000 r9 : bae4aeb0 r8 : 00000004
r7 : 00000000 r6 : 00000004 r5 : 00000004 r4 : 00000040
r3 : 00000000 r2 : bae4b118 r1 : bae46d8c r0 : 00000009
Flags: nZCv IRQs off FIQs off Mode SVC_32
Resetting CPU ...

resetting ...


U-Boot 2016.03-1 (Mar 27 2016 - 09:14:44 -0600) Arch Linux ARM

CPU: Exynos4412 @ 1 GHz
Model: Odroid based on Exynos4412
Board: Odroid based on Exynos4412
Type: u3
DRAM: 2 GiB
LDO20@VDDQ_EMMC_1.8V: set 1800000 uV; enabling
LDO22@VDDQ_EMMC_2.8V: set 2800000 uV; enabling
LDO21@TFLASH_2.8V: set 2800000 uV; enabling
MMC: SAMSUNG SDHCI: 0, EXYNOS DWMMC: 1
*** Warning - bad CRC, using default environment

Net: No ethernet found.
Hit any key to stop autoboot: 0
starting USB...
USB0: USB EHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
scanning usb for ethernet devices... 0 Ethernet Device(s) found
switch to partitions #0, OK
mmc0(part 0) is current device
mmc found on device 0
Checking for: /boot/uEnv.txt ...
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
No kernel found
Card did not respond to voltage select!

USB device 0: unknown device

Odroid # df
dfu - Device Firmware Upgrade

Usage:
dfu <USB_controller> <interface> <dev> [list]
- device firmware upgrade via <USB_controller>
on device <dev>, attached to interface
<interface>
[list] - list available alt settings

Odroid # help
? - alias for 'help'
base - print or set address offset
bdinfo - print Board Info structure
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootelf - Boot from an ELF image in memory
bootm - boot application image from memory
bootp - boot image via network using BOOTP/TFTP protocol
bootvx - Boot vxWorks from an ELF image
bootz - boot Linux zImage image from memory
cmp - memory compare
coninfo - print console devices and information
cp - memory copy
crc32 - checksum calculation
dcache - enable or disable data cache
dfu - Device Firmware Upgrade
dhcp - boot image via network using DHCP/TFTP protocol
dm - Driver model low level access
echo - echo args to console
editenv - edit environment variable
env - environment handling commands
erase - erase FLASH memory
exit - exit script
ext2load- load binary file from a Ext2 filesystem
ext2ls - list files in a directory (default /)
ext4load- load binary file from a Ext4 filesystem
ext4ls - list files in a directory (default /)
ext4size- determine a file's size
ext4write- create a file in the root directory
false - do nothing, unsuccessfully
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls - list files in a directory (default /)
fatsize - determine a file's size
fatwrite- write file into a dos filesystem
fdt - flattened device tree utility commands
flinfo - print FLASH memory information
fstype - Look up a filesystem type
go - start application at address 'addr'
gpio - query and control gpio pins
gpt - GUID Partition Table
help - print command description/usage
i2c - I2C sub-system
icache - enable or disable instruction cache
iminfo - print header information for application image
itest - return true/false on integer compare
load - load binary file from a filesystem
loadb - load binary file over serial line (kermit mode)
loads - load S-Record file over serial line
loadx - load binary file over serial line (xmodem mode)
loady - load binary file over serial line (ymodem mode)
loop - infinite loop on address range
ls - list files in a directory (default /)
md - memory display
mii - MII utility commands
mm - memory modify (auto-incrementing address)
mmc - MMC sub system
mmcinfo - display MMC info
mw - memory write (fill)
nm - memory modify (constant address)
part - disk partition related commands
ping - send ICMP ECHO_REQUEST to network host
pmic - operations
printenv- print environment variables
protect - enable or disable FLASH write protection
pxe - commands to get and boot from pxe files
regulator- uclass operations
reset - Perform RESET of the CPU
run - run commands in an environment variable
save - save file to a filesystem
saveenv - save environment variables to persistent storage
setenv - set environment variables
setexpr - set environment variable as the result of eval expression
showvar - print local hushshell variables
size - determine a file's size
source - run script from memory
sysboot - command to get and boot from syslinux files
test - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
thordown- TIZEN "THOR" downloader
true - do nothing, successfully
ums - Use the UMS [USB Mass Storage]
usb - USB sub-system
usbboot - boot from USB device
version - print monitor, compiler and linker version')
safeman
 
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