[PATCH v2 0/1] misc: st32boot: Add stm32 upgrade protocol handling

From: Karol Wrona
Date: Fri Oct 10 2014 - 07:55:10 EST


This patch is needed by the sensorhub driver which uses STM32F4xx and Jonathan
suggested to factor out these sources (mentioned in:
[RFC/PATCH 2/6] misc: sensorhub: Add sensorhub).

I feel a bit ashamed because I know a bit STM32F4 controllers but I did not
realize that it is generic ST protocol. It helped us a lot because this
code really needed some refactoring.

So this patch contains SPI protocol used in the STM32 bootloader and is based
on AN4286. Generally it can be used to implement handling of other interfaces
like UART or I2C because the flow is quite similar and maybe adding proper
hw access callbacks will do all work.

It supports:
- get info frame
- get version
- firmware write (write, read, write address, erase)

>From v1: some typos fixes


Karol Wrona (1):
misc: st32boot: Add stm32 upgrade protocol handling

drivers/misc/Kconfig | 1 +
drivers/misc/Makefile | 1 +
drivers/misc/stm32boot/Kconfig | 6 +
drivers/misc/stm32boot/Makefile | 3 +
drivers/misc/stm32boot/stm32_core.c | 412 +++++++++++++++++++++++++++++++++++
drivers/misc/stm32boot/stm32_core.h | 81 +++++++
drivers/misc/stm32boot/stm32_spi.c | 108 +++++++++
include/linux/stm32fwu.h | 47 ++++
8 files changed, 659 insertions(+)
create mode 100644 drivers/misc/stm32boot/Kconfig
create mode 100644 drivers/misc/stm32boot/Makefile
create mode 100644 drivers/misc/stm32boot/stm32_core.c
create mode 100644 drivers/misc/stm32boot/stm32_core.h
create mode 100644 drivers/misc/stm32boot/stm32_spi.c
create mode 100644 include/linux/stm32fwu.h


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