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i.MX6 Boot from SPI - alternative pinmux

Question asked by Dmitry Varakin on Oct 2, 2014
Latest reply on Oct 2, 2014 by igorpadykov

Hello!

 

I have a question regarding iMX6 boot from SPI flash. If you look to MCIMX6Q-SDB schematics, you will find the following pin connection for SPI NOR flash (only 2 lines as example):

 

  SPINOR_CLK  --->>> KEY_COL0 [W5] . ALT0 = ECSPI1_CLK

  SPINOR_MISO --->>> KEY_COL1 [U7] . ALT0 = ECSPI1_MISO

 

However, according to RM "Table 8-25. SPI IOMUX Pin Configuration", or DS "Boot Devices Interfaces Allocation", booting from ECSPI1 is possible if connected to EIM_D17.alt1, EIM_D18.alt1, etc...

 

Does that mean that MCIMX6Q-SDB is not able to boot from onboard SPI NOR flash?

Or does boot ROM look to alternative pin options as well?

 

Thank you!

 

--

Dmitry

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