A set of patches from ArduPilot use of ChibiOS. Just some simple ones to start with.
https://github.com/ChibiOS/ChibiOS/pull/40
Changes are:
STM32H7xx: fixed size of SRAM3 NOCACHE region
STM32: fixed F4 check when I2S disabled
STM32: enable TIM15,16,17 on STM32H7xx
STM32: fixed range of PLL2_DIVP and PLL3_DIVP for H7
STM32: fixed clock selection error for LPTIM for STM32H7xx
STM32: fixed rounding of uart clocks
STM32: fixed STM32_OTG_STEPPING for STM32F405
STM32: added missing DMA stream for SPI1_TX on STM32F412
* add dma stream for stm32f412x
this has been merged to trunk