linux.git/drivers/nvmem/Kconfig, branch v6.5

nvmem: imx: support i.MX93 OCOTP

2023-06-15T11:42:17+00:00

Add i.MX93 OCOTP support. i.MX93 OCOTP has two parts: Fuse shadow
block(fsb) and fuse managed by ELE. The FSB part could be directly
accessed with MMIO, the ELE could only be accessed with ELE API.

Currently the ELE API is not ready, so NULL function callback is used,
but it was tested with downstream ELE API.

Signed-off-by: Peng Fan 
Signed-off-by: Srinivas Kandagatla 
Message-ID: <20230611140330.154222-22-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman

nvmem: brcm_nvram: add .read_post_process() for MACs

2023-06-15T11:42:16+00:00

1. Parse ASCII MAC format into byte based
2. Calculate relative addresses based on index argument

Signed-off-by: Rafał Miłecki 
Signed-off-by: Srinivas Kandagatla 
Message-ID: <20230611140330.154222-5-srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman

nvmem: u-boot-env: post-process "ethaddr" env variable

2023-04-05T17:41:13+00:00

U-Boot environment variables are stored in ASCII format so "ethaddr"
requires parsing into binary to make it work with Ethernet interfaces.

This includes support for indexes to support #nvmem-cell-cells = <1>.

Signed-off-by: Rafał Miłecki 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20230404172148.82422-36-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: core: introduce NVMEM layouts

2023-04-05T17:41:11+00:00

NVMEM layouts are used to generate NVMEM cells during runtime. Think of
an EEPROM with a well-defined conent. For now, the content can be
described by a device tree or a board file. But this only works if the
offsets and lengths are static and don't change. One could also argue
that putting the layout of the EEPROM in the device tree is the wrong
place. Instead, the device tree should just have a specific compatible
string.

Right now there are two use cases:
 (1) The NVMEM cell needs special processing. E.g. if it only specifies
     a base MAC address offset and you need to add an offset, or it
     needs to parse a MAC from ASCII format or some proprietary format.
     (Post processing of cells is added in a later commit).
 (2) u-boot environment parsing. The cells don't have a particular
     offset but it needs parsing the content to determine the offsets
     and length.

Co-developed-by: Miquel Raynal 
Signed-off-by: Miquel Raynal 
Signed-off-by: Michael Walle 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20230404172148.82422-14-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: xilinx: zynqmp: make modular

2023-04-05T17:41:10+00:00

This driver has a MODULE_LICENSE but is not tristate so cannot be
built as a module, unlike all its peers: make it modular to match.

Signed-off-by: Nick Alcock 
Suggested-by: Michal Simek 
Cc: Luis Chamberlain 
Cc: linux-modules@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Hitomi Hasegawa 
Cc: Srinivas Kandagatla 
Cc: Michal Simek 
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20230404172148.82422-4-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: stm32: fix OPTEE dependency

2023-02-06T18:07:00+00:00

The stm32 nvmem driver fails to link as built-in when OPTEE
is a loadable module:

aarch64-linux-ld: drivers/nvmem/stm32-bsec-optee-ta.o: in function `stm32_bsec:
stm32-bsec-optee-ta.c:(.text+0xc8): undefined reference to `tee_client_open_session'
aarch64-linux-ld: drivers/nvmem/stm32-bsec-optee-ta.o: in function `stm32_bsec:
stm32-bsec-optee-ta.c:(.text+0x1fc): undefined reference to `tee_client_open_context'

Change the CONFIG_NVMEM_STM32_ROMEM definition so it can only
be built-in if OPTEE is either built-in or disabled, and
make NVMEM_STM32_BSEC_OPTEE_TA a hidden symbol instead.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20230206134356.839737-23-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: stm32: add OP-TEE support for STM32MP13x

2023-02-06T18:06:59+00:00

For boot with OP-TEE on STM32MP13, the communication with the secure
world no more use STMicroelectronics SMC but communication with the
STM32MP BSEC TA, for data access (read/write) or lock operation:
- all the request are sent to OP-TEE trusted application,
- for upper OTP with ECC protection and with word programming only
  each OTP are permanently locked when programmed to avoid ECC error
  on the second write operation

Signed-off-by: Patrick Delaunay 
Reviewed-by: Etienne Carriere 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20230206134356.839737-18-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: Kconfig: Fix spelling mistake "controlls" -> "controls"

2022-11-23T18:44:52+00:00

There is a spelling mistake in a Kconfig description. Fix it.

Signed-off-by: Colin Ian King 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20221118063932.6418-8-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: lan9662-otp: add support

2022-09-24T12:54:38+00:00

Add support for OTP controller available on LAN9662. The OTPC controls
the access to a non-volatile memory. The size of the memory is 8KB.
The OTPC can access the memory based on an offset.
Implement both the read and the write functionality.

Signed-off-by: Horatiu Vultur 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20220916122100.170016-13-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman

nvmem: sort config symbols alphabetically

2022-09-24T12:54:38+00:00

1. Match what most subsystems do
2. Simplify maintenance a bit
3. Reduce amount of conflicts for new drivers patches

While at it unify indent level in Makefile.

Signed-off-by: Rafał Miłecki 
Signed-off-by: Srinivas Kandagatla 
Link: https://lore.kernel.org/r/20220916122100.170016-9-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman