Hi,
I am using i.MX7ULP now and I want to enable A7 LDO.
I got some clues in 36.2.3.1 of IMX7ULPRMV2_RevC.pdf.
However, I don't know how to modify the parameter (please refer to the following image) of eFuse.
As I know, once the parameter be enabled, M4 will set PMC_0_CTRL[LDOEN] bit and the current of A7 domain will be from the internal LDO. Isn't it?
In addition, I can't find "fuse map" in the document as well.
Could you help me, please?
Hi igorpadykov,
Thank you for your help.
In addition, if I want to set the "A7 LDO Enable" bit as 1, which value of u-boot command is correct?
A. fuse prog 2 3 0x00000001
B. fuse prog 2 3 0x01000000
Thanks a lot.
Hi Stanley
for fuses programming one can look on
Burning eFuses on i.MX6 and i.MX7 - i.MXDev Blog
Best regards
igor
Hi igorpadykov,
I know how to program.
What I don't know is the address order, little-endian or big-endian?
In the Bank 2 Word 3, the byte order is "0x530 0x531 0x532 0x533" or "0x533 0x532 0x531 0x530"?
If I want to set the "A7 LDO Enable" bit as 1, which value of u-boot command is correct? 0x00000001 or 0x01000000?
Thanks.
Hi Stanley
fuse map can be found in attachment section of Reference Manual,
also attached below.
i.MX 7ULP Applications Processor Reference Manual
Best regards
igor
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