Re: [PATCH 00/14] Add support to STMicroelectronics STM32 family
From: Maxime Coquelin
Date: Mon Feb 16 2015 - 06:52:42 EST
2015-02-15 16:14 GMT+01:00 Andreas FÃrber <afaerber@xxxxxxx>:
> Hi Maxime,
> Am 12.02.2015 um 18:45 schrieb Maxime Coquelin:
>> This patchset adds basic support for STMicroelectronics STM32 series MCUs.
>> STM32 MCUs are Cortex-M CPU, used in various applications (consumer
>> electronics, industrial applications, hobbyists...).
>> Datasheets, user and programming manuals are publicly available on
>> STMicroelectronics website.
>> With this series applied, the STM32F419 Discovery can boot succesfully.
>> Once this series accepted, next steps will be to add DMA support, as USART,
>> I2C and SPI IPs don't have any FIFO. Then will come the clock driver, as today
>> the bootloader has to be patched to enable the needed clocks.
> This is somewhat unfortunate, as I have been working on the same thing
> and have demonstrated the STM32F429 Discovery Kit at ARM TechSymposium
> Europe in December and submitted a talk for LinuxCon Japan.
Hmm, I wasn't aware you were also working on it.
The good news is that we are not alone on this task :).
I do it on my spare time, so any contribution is more than welcome.
> On a brief look, it seems you are further along in terms of code quality
> and documenting. Do you spot anything that's missing in your series and
> could be added from my branch? The clk controller maybe? Also I already
> started looking into gpio and usb drivers. Me too, I skipped DMA support
The GPIO support is already part of the pinctrl patch.
The missing thing is the GPIO interrupt feature, but I am working on it.
Maybe you could focus on the clock support, as I see its support is
well advanced in you tree?
I see one bug in it, the timer clocks should be 90MHz, but your patch
I see you have started the LCD controller driver, maybe that is
another task you could handle?
Regarding USB, have you made it to work?
>> Maxime Coquelin (14):
>> scripts: link-vmlinux: Don't pass page offset to kallsyms if XIP
>> ARM: ARMv7M: Enlarge vector table to 256 entries
>> clocksource: Add ARM System timer driver
>> reset: Add reset_controller_of_init() function
>> ARM: call reset_controller_of_init from default time_init handler
>> drivers: reset: Add STM32 reset driver
>> clockevent: Add STM32 Timer driver
>> pinctrl: Add pinctrl driver for STM32 MCUs
>> serial: stm32-usart: Add STM32 USART Driver
>> ARM: Add STM32 family machine
>> ARM: dts: Add ARM System timer as clockevent in armv7m
>> ARM: dts: Introduce STM32F429 MCU
>> ARM: configs: Add STM32 defconfig
>> MAINTAINERS: Add entry for STM32 MCUs
>> Documentation/arm/stm32/overview.txt | 32 +
>> Documentation/arm/stm32/stm32f429-overview.txt | 22 +
>> .../devicetree/bindings/arm/system_timer.txt | 15 +
>> .../devicetree/bindings/pinctrl/pinctrl-stm32.txt | 99 +++
>> .../devicetree/bindings/reset/st,stm32-reset.txt | 19 +
>> .../devicetree/bindings/serial/st,stm32-usart.txt | 18 +
>> .../devicetree/bindings/timer/st,stm32-timer.txt | 19 +
>> MAINTAINERS | 7 +
>> arch/arm/Kconfig | 22 +
>> arch/arm/Makefile | 1 +
>> arch/arm/boot/dts/Makefile | 1 +
>> arch/arm/boot/dts/armv7-m.dtsi | 7 +
>> arch/arm/boot/dts/stm32f429-disco.dts | 41 ++
>> arch/arm/boot/dts/stm32f429.dtsi | 279 ++++++++
>> arch/arm/configs/stm32_defconfig | 72 ++
>> arch/arm/kernel/entry-v7m.S | 8 +-
>> arch/arm/kernel/time.c | 4 +
>> arch/arm/mach-stm32/Makefile | 1 +
>> arch/arm/mach-stm32/Makefile.boot | 0
>> arch/arm/mach-stm32/board-dt.c | 19 +
>> drivers/clocksource/Kconfig | 16 +
>> drivers/clocksource/Makefile | 2 +
>> drivers/clocksource/arm_system_timer.c | 74 ++
>> drivers/clocksource/timer-stm32.c | 187 +++++
>> drivers/pinctrl/Kconfig | 9 +
>> drivers/pinctrl/Makefile | 1 +
>> drivers/pinctrl/pinctrl-stm32.c | 779 +++++++++++++++++++++
>> drivers/reset/Makefile | 1 +
>> drivers/reset/core.c | 20 +
>> drivers/reset/reset-stm32.c | 124 ++++
>> drivers/tty/serial/Kconfig | 17 +
>> drivers/tty/serial/Makefile | 1 +
>> drivers/tty/serial/stm32-usart.c | 695 ++++++++++++++++++
>> include/asm-generic/vmlinux.lds.h | 4 +-
>> include/dt-bindings/pinctrl/pinctrl-stm32.h | 43 ++
>> include/linux/reset-controller.h | 6 +
>> include/uapi/linux/serial_core.h | 3 +
>> scripts/link-vmlinux.sh | 2 +-
>> 38 files changed, 2664 insertions(+), 6 deletions(-)
>> create mode 100644 Documentation/arm/stm32/overview.txt
>> create mode 100644 Documentation/arm/stm32/stm32f429-overview.txt
>> create mode 100644 Documentation/devicetree/bindings/arm/system_timer.txt
>> create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-stm32.txt
>> create mode 100644 Documentation/devicetree/bindings/reset/st,stm32-reset.txt
>> create mode 100644 Documentation/devicetree/bindings/serial/st,stm32-usart.txt
>> create mode 100644 Documentation/devicetree/bindings/timer/st,stm32-timer.txt
>> create mode 100644 arch/arm/boot/dts/stm32f429-disco.dts
>> create mode 100644 arch/arm/boot/dts/stm32f429.dtsi
>> create mode 100644 arch/arm/configs/stm32_defconfig
>> create mode 100644 arch/arm/mach-stm32/Makefile
>> create mode 100644 arch/arm/mach-stm32/Makefile.boot
>> create mode 100644 arch/arm/mach-stm32/board-dt.c
>> create mode 100644 drivers/clocksource/arm_system_timer.c
>> create mode 100644 drivers/clocksource/timer-stm32.c
>> create mode 100644 drivers/pinctrl/pinctrl-stm32.c
>> create mode 100644 drivers/reset/reset-stm32.c
>> create mode 100644 drivers/tty/serial/stm32-usart.c
>> create mode 100644 include/dt-bindings/pinctrl/pinctrl-stm32.h
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