topic Re: Signing error in i.MX8M Mini - FIT Image in i.MX Processors

Signing error in i.MX8M Mini - FIT Image

kanimozhi_t — Sun, 09 Aug 2020 09:24:42 GMT

I've followed this tutorial (Manually build Boot binary for i.MX8M Mini) for building U-Boot and successfully got the FIT image without HDMI component. And when I tried signing the FIT image following this (i.MX Secure and Encrypted Boot using HABv4), we got the error below. (tried both CST 3.1 & CST 3.3)

I've hereby attached the Build log for your reference. The build log is all the same except zeros for the HDMI field. I've verified the fields in CSF and it looks like the error with block address for signing. The CSF is also attached.

To summarize, the questions are:

How can I sign i.MX 8MM?
How to get the address for signing?
Will adding the HDMI solves the signing?, if so how can I add HDMI in FIT image?

Thanks in advance.

Re: Signing error in i.MX8M Mini - FIT Image

Yuri — Mon, 10 Aug 2020 02:47:50 GMT

kanimozhi.t@jasmin-infotech.com

Hello,

I have sent You some comments directly.

Regards,

Yuri.

Re: Signing error in i.MX8M Mini - FIT Image

kanimozhi_t — Mon, 10 Aug 2020 10:49:57 GMT

Thanks for your inputs,

Though I've followed the documents, I'm still getting the same error (as in attached image). I've no clue where to debug or what has gone wrong.

P.S: I've tried using CST 3.1, 3.2 & 3.3

Awaiting your reply.

Re: Signing error in i.MX8M Mini - FIT Image

Yuri — Tue, 11 Aug 2020 03:47:27 GMT

kanimozhi.t@jasmin-infotech.com

Hello,

Both HDMI and DDR controllers require firmware that must be loaded

prior to executing the bootloader. Please try to use also HDMI firmware.

Regards,

Yuri.

Re: Signing error in i.MX8M Mini - FIT Image

kanimozhi_t — Tue, 11 Aug 2020 12:00:49 GMT

Thanks for the reply,

I've already included the firmware for DDR by cp ../../firmware-imx/firmware-imx-8.5/firmware/ddr/synopsys/lpddr4_pmu_train_* . and the error occurs.

But, when I try to include the HDMI firmware, it's not building into the flash.bin and flash.bin still has HDMI address as zero.

Any help in including the HDMI firmware would be much appreciated.

build log:

========= IVT HEADER [HDMI FW] =========

header.tag: 0x0

header.length: 0x0

header.version: 0x0

entry: 0x0

reserved1: 0x0

dcd_ptr: 0x0

boot_data_ptr: 0x0

self: 0x0

csf: 0x0

reserved2: 0x0

boot_data.start: 0x0

boot_data.size: 0x0

boot_data.plugin: 0x0

========= IVT HEADER [PLUGIN] =========

header.tag: 0x0

header.length: 0x0

header.version: 0x0

entry: 0x0

reserved1: 0x0

dcd_ptr: 0x0

boot_data_ptr: 0x0

self: 0x0

csf: 0x0

reserved2: 0x0

boot_data.start: 0x0

boot_data.size: 0x0

boot_data.plugin: 0x0

========= IVT HEADER [LOADER IMAGE] =========

header.tag: 0xd1

header.length: 0x2000

header.version: 0x41

entry: 0x7e1000

reserved1: 0x57c00

dcd_ptr: 0x0

boot_data_ptr: 0x7e0fe0

self: 0x7e0fc0

csf: 0x80e7c0

reserved2: 0x0

boot_data.start: 0x7e0bc0

boot_data.size: 0x2fc60

boot_data.plugin: 0x0

========= OFFSET dump =========

Loader IMAGE:

header_image_off 0x0

dcd_off 0x0

image_off 0x40

csf_off 0x2d800

spl hab block: 0x7e0fc0 0x0 0x2d800

Second Loader IMAGE:

sld_header_off 0x57c00

sld_csf_off 0x58c20

sld hab block: 0x401fcdc0 0x57c00 0x1020

Re: Signing error in i.MX8M Mini - FIT Image

kanimozhi_t — Wed, 12 Aug 2020 10:25:14 GMT

Answering my own question:

So, after some trial and error and with the help of community, I got it resolved. It's a problem with specifying path in CSF file. Earlier, I used tilde to specify the home and that has created a lot of chaos.

Here's a note to all:

Don't use tilde(~) in CSF it's causing the 'realloc(): invalid pointer' error. Either use full path (/home/$(whoami)) or relative path (../../)