topic Re: IMX6UL USB_OTG1 Boot Disable in i.MX Processors

IMX6UL USB_OTG1 Boot Disable

renedebacker — Thu, 24 Oct 2019 19:48:09 GMT

I am designing a custom imx6ul board that is configured to boot from eMMC - uSDHC2. Is there a way to disable booting from the usb_otg1 port if the eMMC boot fails? We would still need the serial boot functionality for development and production. I did not see any efuses that disabled usb port serial downloading.

Re: IMX6UL USB_OTG1 Boot Disable

igorpadykov — Thu, 24 Oct 2019 23:29:36 GMT

Hi Rene

I am afraid this is not possible, available only fuse SDP_DISABLE

"Disable serial download support" described in Table 5-9. Fusemap Descriptions

Reference Manual.

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

Re: IMX6UL USB_OTG1 Boot Disable

renedebacker — Fri, 25 Oct 2019 14:26:15 GMT

Igor,

SO setting the Disable Serial Download Support disables USB_OTG1 and UART1/2 downloads?

Regards,

Rene

Rene DeBacker

Hardware Engineering

E: rdebacker@futurex.com<mailto:rdebacker@futurex.com>

O: +1 (830) 980-9782 x1377

Enterprise encryption & key management solutions for

securing the world’s most sensitive data.

Re: IMX6UL USB_OTG1 Boot Disable

igorpadykov — Fri, 25 Oct 2019 14:48:22 GMT

yes

Best regards
igor