Texas Instruments 66AK2Gx User manual

Demonstrating
U-Boot from SPI/QSPI for 66AK2G

SPI
Master
SPI
Slave
Quad-SPI
Master
SPI
Slave

K2G EVM Console capture SPI NOR boot configuration
To tftp get the prebuilt .gph file to the EVM memory, set up the tftp server and
configure serverip and tftp_root of the u-boot environment variables:
=> setenv serverip 158.218.109.194
=> setenv tftp_root psdk4209-keg
Once these are set up and in u-boot prompt, run the u-boot script get_uboot_net
to retrieve the file, and burn_uboot_spi to program the NOR flash:
=> run get_uboot_net
=> run burn_uboot_spi

K2G GP EVM Technical Reference Manual
http://www.ti.com/lit/sprui65a

K2G EVM Console Capture QSPI configuration
To retrieve the MLO from SD card, be sure the mmc is responding by
rescanning it. Then, load the MLO file from mmc with fatload command.
=> mmc rescan
=> fatload mmc 0 ${loadaddr} MLO
To retrieve the file from network, the tftp server needs to be set up, and
the serverip and ipaddr of the u-boot environment variables need to be
set. Then, tftp the prebuilt MLO file from the tftp server.
=> setenv serverip tftp.server.ip.addr
=> setenv ipaddr evm.ip.addr
=> tftp ${loadaddr} ${serverip}:psdk4209-k2g/MLO-k2g-evm

K2G GP EVM Technical Reference Manual
http://www.ti.com/lit/sprui65a

K2G EVM Console capture: Kernel boot
In this example, the network boot is used with an NFS-mounted
filesystem. With this kernel boot option, the u-boot environment
variables boot, serverip, nfs_root, and tftp_root need to be
configured:
=> setenv boot net
=> setenv serverip 158.218.109.194
=> setenv nfs_root /nfs/nfs_fs1
=> setenv tftp_root psdk4209-keg
Once configured, the system will be able to boot to the kernel prompt.

For More Information
•66AK2x Multicore DSP + ARM Processors:
http://www.ti.com/processors/dsp/c6000-dsp-arm/66ak2x/overview.html
•Processor SDK for 66AK2Gxx Processor:
http://www.ti.com/tool/processor-sdk-K2G
•Evaluation Modules for the 66AK2Gxx User’s Guide (TRM):
http://www.ti.com/lit/sprui65
•Processor SDK U-boot User’s Guide:
http://processors.wiki.ti.com/index.php/Linux_Core_U-Boot_User%27s_Guide
•For questions about this training, refer to the E2E Community Forums for Sitara
Processors at http://e2e.ti.com/support/arm/sitara_arm/f/791/t/277411

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