Normal Speed Mode setting at SD Boot of i.MX6Solo

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Normal Speed Mode setting at SD Boot of i.MX6Solo

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yuuki
Senior Contributor II

Dear all,

We use SD boot.

At Booting, We'd like to set the SD clock speed  as Normal Speed Mode (25MHz).

We understand that High/Normal can be chosen by BOOT_CFG1[3:2].

table 8-15.png

table 8-16.png

We tried these Field was set as 00 and 01 by GPIOpins.

We use the Internal Boot Mode (BOOT_MODE[1:0] = 0b10).
But the speed of the clock is 50MHz.

Can SD clock speed be set as 25MHz?
If there are the contents which we should set more, please tell me.


Best Regards,
Yuuki

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igorpadykov
NXP Employee
NXP Employee

Hi Yuuki

please check IMX6SDLCEC  ERR005645 ROM: Normal SD clock speed (SDR12) not

selectable in SD/SDXC boot mode

Best regards

igor

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639 Views
igorpadykov
NXP Employee
NXP Employee

Hi Yuuki

please check IMX6SDLCEC  ERR005645 ROM: Normal SD clock speed (SDR12) not

selectable in SD/SDXC boot mode

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

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

-----------------------------------------------------------------------------------------------------------------------

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