[v2,0/6] Add nvmem support on STM32

Message

Fabrice Gasnier Feb. 28, 2019, 10:19 a.m. UTC

Non volatile memory area is available on STM32. It contains various
factory programmed information such as unique device ID, analog calibration...
This patchset adds:
- NVMEM support to access stm32 data cells
- helper to read 16 bits cells.

---
Changes in v2:
- update "st,stm32f4-otp" compatible as discussed with Rob
- add stm32f429 dts
- add core helper to read 16 bits cells

Fabrice Gasnier (6):
  dt-bindings: nvmem: Add STM32 factory-programmed romem
  nvmem: Add driver for STM32 factory-programmed read only mem
  nvmem: stm32: add support for STM32MP15 BSEC to control OTP data
  nvmem: core: add nvmem_cell_read_u16
  ARM: dts: stm32: Add romem and temperature calibration on stm32mp157c
  ARM: dts: stm32: Add romem and temperature calibration on stm32f429

 .../devicetree/bindings/nvmem/st,stm32-romem.txt   |  31 ++++
 arch/arm/boot/dts/stm32f429.dtsi                   |  13 ++
 arch/arm/boot/dts/stm32mp157c.dtsi                 |  13 ++
 drivers/nvmem/Kconfig                              |  10 +
 drivers/nvmem/Makefile                             |   2 +
 drivers/nvmem/core.c                               |  37 ++++
 drivers/nvmem/stm32-romem.c                        | 202 +++++++++++++++++++++
 include/linux/nvmem-consumer.h                     |   7 +
 8 files changed, 315 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/nvmem/st,stm32-romem.txt
 create mode 100644 drivers/nvmem/stm32-romem.c

Comments

Srinivas Kandagatla March 20, 2019, 2:25 p.m. UTC | #1

On 28/02/2019 10:19, Fabrice Gasnier wrote:
> Non volatile memory area is available on STM32. It contains various
> factory programmed information such as unique device ID, analog calibration...
> This patchset adds:
> - NVMEM support to access stm32 data cells
> - helper to read 16 bits cells.
> 
> ---
> Changes in v2:
> - update "st,stm32f4-otp" compatible as discussed with Rob
> - add stm32f429 dts
> - add core helper to read 16 bits cells
> 
> Fabrice Gasnier (6):
>    dt-bindings: nvmem: Add STM32 factory-programmed romem
>    nvmem: Add driver for STM32 factory-programmed read only mem
>    nvmem: stm32: add support for STM32MP15 BSEC to control OTP data
>    nvmem: core: add nvmem_cell_read_u16

Applied all the nvmem patches except DTS patches to nvmem next

Thanks,
srini

Alexandre TORGUE March 26, 2019, 12:27 p.m. UTC | #2

Hi Fabrice

On 2/28/19 11:19 AM, Fabrice Gasnier wrote:
> Non volatile memory area is available on STM32. It contains various
> factory programmed information such as unique device ID, analog calibration...
> This patchset adds:
> - NVMEM support to access stm32 data cells
> - helper to read 16 bits cells.
> 
> ---
> Changes in v2:
> - update "st,stm32f4-otp" compatible as discussed with Rob
> - add stm32f429 dts
> - add core helper to read 16 bits cells
> 
> Fabrice Gasnier (6):

...

>    ARM: dts: stm32: Add romem and temperature calibration on stm32mp157c
>    ARM: dts: stm32: Add romem and temperature calibration on stm32f429

DT patches applied on stm32-next.

Regards
Alex