Difference between revisions of "CM-T335: U-Boot: Firmware Update"
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== Introduction == | == Introduction == | ||
| − | The CM-T335 Firmware consists of two components: Secondary Program Loader (SPL) and U-Boot. | + | The CompuLab CM-T335 System-on-Module / Computer-on-Module Firmware consists of two components: Secondary Program Loader (SPL) and U-Boot. |
This article describes the firmware update process for CM-T335 system-on-module product. | This article describes the firmware update process for CM-T335 system-on-module product. | ||
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=== Updating from micro SD card === | === Updating from micro SD card === | ||
* Copy the firmware binary images {{filename|MLO}} and {{filename|u-boot.img}} from [http://compulab.co.il/products/computer-on-modules/cm-t335/#devres U-Boot package for CM-T335] to the root directory of the micro SD card. | * Copy the firmware binary images {{filename|MLO}} and {{filename|u-boot.img}} from [http://compulab.co.il/products/computer-on-modules/cm-t335/#devres U-Boot package for CM-T335] to the root directory of the micro SD card. | ||
| + | {{Note|The partition has to be formatted with either ext2/3/4 or FAT file system.}} | ||
* Insert the micro SD card into the micro SD socket (P23) on SB-T335. | * Insert the micro SD card into the micro SD socket (P23) on SB-T335. | ||
* Start the U-Boot MMC subsystem: | * Start the U-Boot MMC subsystem: | ||
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* Check that the storage device is ready: | * Check that the storage device is ready: | ||
<pre> | <pre> | ||
| − | # | + | # ls mmc 0:1 |
</pre> | </pre> | ||
* Load the SPL binary into memory: | * Load the SPL binary into memory: | ||
<pre> | <pre> | ||
| − | # | + | # load mmc 0:1 80a00000 mlo |
</pre> | </pre> | ||
* Load the U-Boot binary into memory: | * Load the U-Boot binary into memory: | ||
<pre> | <pre> | ||
| − | # | + | # load mmc 0:1 80100000 u-boot.img |
</pre> | </pre> | ||
* Proceed to [[#Flashing images|Flashing images]] section | * Proceed to [[#Flashing images|Flashing images]] section | ||
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=== Updating from USB === | === Updating from USB === | ||
* Copy the firmware binary images {{filename|MLO}} and {{filename|u-boot.img}} from [http://compulab.co.il/products/computer-on-modules/cm-t335/#devres U-Boot package for CM-T335] to the root directory of the first partition on the USB storage device. | * Copy the firmware binary images {{filename|MLO}} and {{filename|u-boot.img}} from [http://compulab.co.il/products/computer-on-modules/cm-t335/#devres U-Boot package for CM-T335] to the root directory of the first partition on the USB storage device. | ||
| − | {{Note| | + | {{Note|The partition has to be formatted with either ext2/3/4 or FAT file system.}} |
* Plug the USB storage device into: | * Plug the USB storage device into: | ||
** USB host connector (either P25, P26, P27 or P28) on SB-T335 if the CM-T335 module has U4 configuration or | ** USB host connector (either P25, P26, P27 or P28) on SB-T335 if the CM-T335 module has U4 configuration or | ||
| Line 56: | Line 57: | ||
* Check that the storage device is ready: | * Check that the storage device is ready: | ||
<pre> | <pre> | ||
| − | # | + | # ls usb 0:1 |
</pre> | </pre> | ||
* Load the SPL binary into memory: | * Load the SPL binary into memory: | ||
<pre> | <pre> | ||
| − | # | + | # load usb 0:1 80a00000 mlo |
</pre> | </pre> | ||
* Load the U-Boot binary into memory: | * Load the U-Boot binary into memory: | ||
<pre> | <pre> | ||
| − | # | + | # load usb 0:1 80100000 u-boot.img |
</pre> | </pre> | ||
* Proceed to [[#Flashing images|Flashing images]] section | * Proceed to [[#Flashing images|Flashing images]] section | ||
| Line 106: | Line 107: | ||
* Write the U-Boot image into the on-board NAND flash: | * Write the U-Boot image into the on-board NAND flash: | ||
<pre> | <pre> | ||
| − | # nand write 80100000 200000 | + | # nand write 80100000 200000 80000; |
</pre> | </pre> | ||
* Remove the micro SD card from the micro SD socket. | * Remove the micro SD card from the micro SD socket. | ||
Latest revision as of 06:05, 28 September 2016
Contents
Introduction
The CompuLab CM-T335 System-on-Module / Computer-on-Module Firmware consists of two components: Secondary Program Loader (SPL) and U-Boot. This article describes the firmware update process for CM-T335 system-on-module product.
Preliminary setup
- Make sure to power off the CM-T335 evaluation platform.
- Connect the host PC to the SB-T335 base-board (connector P11) via the serial cable supplied with the evaluation kit.
- Start terminal emulation software on your PC. Set baud rate to 115200 bps, 8 bit per frame, 1 stop bit, no parity, no flow control.
- Turn on the CM-T335 evaluation system. The U-Boot boot-loader will start and you will get a command prompt in the terminal window.
|
If the boot settings of your CM-T335 are different than default, you may need to press and hold ^C while turning the CM-T335 on, in order to get command prompt. |
Updating Firmware on the micro SD card
The firmware can be updated using a workstation with a micro SD card reader, or using CM-T335 module Linux environment.
- To update the SPL, just replace it's binary file (MLO) on the micro SD card with the desired version.
- To update the U-Boot, just replace the U-Boot binary file (u-boot.img) on the micro SD card with the desired version.
- Plug the micro SD card into the micro SD card socket of the SB-T335.
- Reset/power on the CM-T335 evaluation system to boot the updated firmware.
Updating Firmware on the NAND flash
CM-T335 firmware can be updated from a micro SD card or using network TFTP download. Both methods are performed from the U-Boot command line and include following common steps:
- Loading binary images from the selected media to the CM-T335 DRAM
- Flashing images to the on-board NAND flash
Updating from micro SD card
- Copy the firmware binary images MLO and u-boot.img from U-Boot package for CM-T335 to the root directory of the micro SD card.
|
|
The partition has to be formatted with either ext2/3/4 or FAT file system. |
- Insert the micro SD card into the micro SD socket (P23) on SB-T335.
- Start the U-Boot MMC subsystem:
# mmc rescan
- Check that the storage device is ready:
# ls mmc 0:1
- Load the SPL binary into memory:
# load mmc 0:1 80a00000 mlo
- Load the U-Boot binary into memory:
# load mmc 0:1 80100000 u-boot.img
- Proceed to Flashing images section
Updating from USB
- Copy the firmware binary images MLO and u-boot.img from U-Boot package for CM-T335 to the root directory of the first partition on the USB storage device.
|
|
The partition has to be formatted with either ext2/3/4 or FAT file system. |
- Plug the USB storage device into:
- USB host connector (either P25, P26, P27 or P28) on SB-T335 if the CM-T335 module has U4 configuration or
- USB OTG connector (P19) on SB-T335 if the CM-T335 module has U1 configuration
- Start the U-Boot USB subsystem:
# usb start
- Check that the storage device is ready:
# ls usb 0:1
- Load the SPL binary into memory:
# load usb 0:1 80a00000 mlo
- Load the U-Boot binary into memory:
# load usb 0:1 80100000 u-boot.img
- Proceed to Flashing images section
Updating from TFTP server
- Setup a TFTP server
- Put the firmware binary images MLO and u-boot.img in the root directory of the TFTP server
- Setup U-Boot networking:
- for dynamic IP configuration:
# dhcp
- or for static IP configuration:
# setenv ipaddr <ip address> # setenv serverip <server ip>
- Download the SPL binary into memory:
# tftp 80a00000 MLO
- Download the U-Boot binary into memory:
# tftp 80100000 u-boot.img
- Proceed to Flashing images section
Flashing images
- Erase the on-board NAND flash for SPL image:
# nand erase 0 80000
- Write the SPL image into the on-board NAND flash:
# nand write 80a00000 0 20000;
- Erase the on-board NAND flash for U-Boot image:
# nand erase 200000 80000
- Write the U-Boot image into the on-board NAND flash:
# nand write 80100000 200000 80000;
- Remove the micro SD card from the micro SD socket.
- Reset the CM-T335 evaluation platform.
