Used STM32H7 spi driver as a base. The register set is nearly identical. All registers are named the same with the same offset. There are some bits within the registers that are different but are not referenced in stm32_spi.c. Therfore this driver may just work as is. I did modify the clock source selection for each SPI peripheral, but not much else. Differences in the registers were applied in hardware/stm32h5xxx_spi.h.
Added functionality to SPI to configure the SPI RCC clock.
Added SPI info to Kconfig, updated stm32_spi.c to select and set the RCC clock, and other minor updates.
Updated Pin Map for SPI, added CFG1_BPASS support
Fixed redefinition of GPIO_SPI6_SCK_2
Added SPI_MAX_KER_CK definition.
This definition was needed because the H50 chips allow a kernel clock of 250 MHz. However the datasheets for all other chips (H52, H53, H56, H57) have a max of 125 MHz.
Changed SPI Clock Source Configuration
Moved setting of SPIx clock sources to stm32h5xx_rcc.c. STM32_SPIx_FREQUENCY and STM32_RCC_CCIPR3_SPIxSEL are now defined in board.h. Added error checking in stm32_spi.c to make sure STM32_SPIx_FREQUENCY and STM32_RCC_CCIPR3_SPIxSEL are actually defined.
Style updates
Removed SPI Clock selection from Kconfig
Update arch/arm/src/stm32h5/stm32_spi.h
Co-authored-by: hartmannathan <59230071+hartmannathan@users.noreply.github.com>
Update arch/arm/src/stm32h5/Kconfig
Co-authored-by: hartmannathan <59230071+hartmannathan@users.noreply.github.com>
Update arch/arm/src/stm32h5/stm32_spi.h
Co-authored-by: hartmannathan <59230071+hartmannathan@users.noreply.github.com>
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