Problem solved. I modify U-boot enviroment, donwload Linux from TFTP and load rootfs via NFS.
Hello, Yuri!
I have read IMX53SMDHUG.pdf and set pins 3 and 4 on SW28 on ON, as described on page 36.
But this is not solve problem - MfgTool not found device.
Use (internal) Boot Switch (SW26, SW28), they are described in section 5.3.2 (Boot Mode Operations and Selections )
of "MCIMX53SMD Board Hardware User’s Guide". It makes sense to configure them to boot from SD - if there is no boot SD,
internal i.MX53 UART / USB bootloader will start (for MFG).
Strange, I connect debug board to SABRE, connect USB-UART Trendnet TU-S9 to debug board and PC, but MfgTool not found device.
How can I switch SABRE in upgrade mode?
Just select "MX53 SMD" as board in LTIB - all the rest is the same as with i.MX53 QSB.
Brilliantov Kirill Vladimirovich said:
Hello, Yuri!
I do not plan use Android. I think update Linux on SD and boot rootfs via NFS.
Can I set Linux and Linux-based rootfs, not Android, on SABRE with MfgTool?