u-boot.git/drivers/misc/imx_ele, branch master

misc: ele_api: Add support for XSPI SET GMID command

2026-03-16T21:44:58+00:00

The XSPI SET GMID command is used to assign GMID ownership to the
requester, allowing access to protected XSPI control registers. This API
must be called in SPL if XSPI GMID-protected settings need to be
modified. Otherwise, XSPI configuration depends on the previous GMID
owner to provide the correct settings.

Signed-off-by: Ye Li 
Signed-off-by: Alice Guo 
Reviewed-by: Peng Fan

misc: imx_ele: Fix compile without CMD_FUSE

2026-03-16T21:44:13+00:00

If CONFIG_CMD_FUSE is not enabled in imx93_11x11_evk_defconfig, then
compilation fails with various undefined references to 'fuse_read',
such as:

  | .../arch/arm/mach-imx/imx9/soc.c:188:(.text.get_cpu_rev+0x38): undefined reference to `fuse_read'

therefore remove the 'fuse' command dependency in order to compile
fuse.c unconditionally to mitigate the issue.

Signed-off-by: Niko Mauno

misc: ele_api: Add Voltage change start and finish APIs

2026-01-17T18:00:23+00:00

On GDET enabled part, need to call voltage change start and finish
APIs when adjust the voltage more than 100mv. Otherwise GDET will be
triggered and system is reset

Reviewed-by: Peng Fan 
Signed-off-by: Ye Li 
Signed-off-by: Peng Fan

misc: fuse: Update fuse driver

2024-10-13T12:43:05+00:00

When OSCCA is enabled, FSB fuse shadow (offset 0x8000)
access is disabled for SOC. So update the driver to read fuse
from ELE API. The ELE has supported to read all shadow fuses like
FSB, reuse the table of FSB for the word index used by ELE API.

Add ELE shadow fuse read and write to current ELE fuse driver.
But when LC is OEM closed, the ELE read/write shadow fuse APIs are
forbidden. Reading from any fuse will return error. This causes
problem to u-boot which must read out some fuse no matter whatever LC.
So we have to change back to read from FSB and ELE common fuse read API.
For using ELE shadow read API for development purpose like checking
the ELE shadow fuse write result, user can set env variable
"enable_ele_shd" to y to switch it.

Reviewed-by: Peng Fan 
Signed-off-by: Ye Li 
Signed-off-by: Peng Fan

misc: fuse: Fix FSB redundancy fuse word check and clear res

2024-10-13T12:43:05+00:00

There is a bug when checking fuse word with redundancy fuse in FSB
table. The redundancy fuses are combined into 4 words, so we can't
directly use word index to do the check, otherwise the high 4 words
will fail to match.

And When calling ELE API, res parameter will pass to ELE API to get ELE
response value for failure. So most of usage does not initialize
this variable and print it after calling ELE API.
However, when ELE API returns failure, we can't ensure this res is
always set because there may be other failure like MU failure.

Reviewed-by: Peng Fan 
Signed-off-by: Ye Li 
Signed-off-by: Peng Fan

misc: ele_api: Add read/write shadow fuse APIs

2024-10-13T12:43:05+00:00

Add ELE APIs to support read and write shadow fuses

Reviewed-by: Peng Fan 
Signed-off-by: Ye Li 
Signed-off-by: Peng Fan

misc: ele_api: Update ELE read common fuse API

2024-10-13T12:43:05+00:00

On iMX8ULP, the word index 1 is used to read OTP_UNIQ_ID with 4 words
data responsed. However this special index does not apply others.
So restrict the check to i.MX8ULP to avoid problem when reading from
fuse word 1 for others, such as i.MX93.

Also update header order

Signed-off-by: Peng Fan

misc: ele_mu: Clear RR when initialize MU

2024-10-13T12:43:05+00:00

When OS is doing ELE API call, before OS get the response, OS is force
reseted, then it is possible that MU RR has data during initialization
in SPL stage. So clear the RR registers, otherwise SPL ELE API call will
work abnormal.

Cc: Alice Guo 
Cc: Marek Vasut 
Signed-off-by: Peng Fan

misc: ele_mu: Update ELE MU to get TR/RR number from HW

2024-10-13T12:43:05+00:00

The MU parameter register can provide the TR and RR number.
For i.MX95 which has 8 RR is different with i.MX93 and i.MX8ULP,
so update the driver to read the PAR for exact TR and RR number.

Also update compatible string for i.MX95 ELE MU.

Cc: Alice Guo 
Cc: Marek Vasut 
Reviewed-by: Peng Fan 
Signed-off-by: Ye Li

imx: ele_ahab: Add HUK derivation support

2024-08-30T18:50:36+00:00

Add a new ahab_derive command that derives the hardware unique key (HUK)
into a 16 or 32 bytes key and stores it at the given address.

Signed-off-by: Mathieu Othacehe 
Reviewed-by: Ye Li