On Wed, Jul 09, 2025 at 10:23:45AM +0000, Pankaj Gupta wrote:

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Hi Shawn,

To test it on MX93, you need additional patches on top of these.

The plan was to send the next patch-set to enable the support for 
MX93, once these got merged.

If you suggest, I can share the patche-set to enable MX93, as an 
attachment to you only.

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Yes, please.  I would like to test the driver before it gets 
merged,

thanks!

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Please find attached the patches for enabling iMX93.

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I have also sent v18 to dispose off the comments:
1. documentation,
2. updating the commit message with collected reviewed by tags.

Are you able to test the driver on i.MX93?
Any help needed?

I did not expect those additional patches (except i.MX93 DTS
changes) for testing the series on i.MX93.  So, no, I didn't test, sorry!

List of Patches:
0001: is required to call "init_fw" API, for SoC i.XM9x.
0002: i.MX93 do not have CAAM, ELE's RNG needs to be started, post init_fw.
0003: iMX93 do not have CAAM, hence (T)RNG & hwrng, need to enabled via ELE.
0004: enforce message sequence flow to prevent any message exchange out of
sequence. Required by power management API(s).
0005: additional API(s) required by Linux kernel management layers like
NVMEM & power management.
0006: EXPORTED API to be used by other kernel management layers.
0007 & 0008: are DTSI & DTS changes.


1. If you add DTSI & DTS changes, i.MX93 board will come up with driver
successfully probed.
Logs: 
root@imx93evk:~# dmesg | grep fsl-se
[    1.414748] fsl-se secure-enclave: assigned reserved memory node
memory@a4120000
[    1.427195] fsl-se secure-enclave: i.MX secure-enclave: hsm0 interface to
firmware, configured.

root@imx93evk:~# ele_hsm_test --info

SAB Error: SAB CMD [0x10]  Resp [0x1329] - Unknown error code

hsm_open_session failed err:0x13

2. If you want to use ELE test, you need to apply patches: 0001 & 0002.

Logs: 
root@imx93evk:~# dmesg | grep fsl-se
[    1.414748] fsl-se secure-enclave: assigned reserved memory node
memory@a4120000
[    1.427195] fsl-se secure-enclave: i.MX secure-enclave: hsm0 interface to
firmware, configured.
root@imx93evk:~# ele_hsm_test --info
hsm_open_session PASS 0x376ace9e
-----------------------------------------------------------
Global Info:
-----------------------------------------------------------
i.MX93 A2
Open Lifecycle
Fips mode 0x0
LIB Version: 1.1.1
NVM Version: 1.1.1
Build ID: 4060004597fe1bf9e84ec0804b98d855f1ed0e13
-----------------------------------------------------------
hsm_close_session[0] ret:0x0

Shawn