| From: |
| Fabrice Gasnier <fabrice.gasnier-AT-st.com> |
| To: |
| <srinivas.kandagatla-AT-linaro.org>, <robh+dt-AT-kernel.org>, <alexandre.torgue-AT-st.com> |
| Subject: |
| [PATCH v2 0/6] Add nvmem support on STM32 |
| Date: |
| Thu, 28 Feb 2019 11:19:50 +0100 |
| Message-ID: |
| <1551349196-8956-1-git-send-email-fabrice.gasnier@st.com> |
| Cc: |
| <mark.rutland-AT-arm.com>, <mcoquelin.stm32-AT-gmail.com>, <fabrice.gasnier-AT-st.com>, <lionel.debieve-AT-st.com>, <devicetree-AT-vger.kernel.org>, <linux-stm32-AT-st-md-mailman.stormreply.com>, <linux-arm-kernel-AT-lists.infradead.org>, <linux-kernel-AT-vger.kernel.org> |
| Archive-link: |
| Article |
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
--
2.7.4
