spi_master Kinetis support

[fauxpark]

Description

@firetech

Hopefully this works, or is at least close. Haven't tried compiling it yet.

Prerequisite for #13089 to be applied to the Ergodox Infinity.

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[fauxpark]

handwired/onekey/teensy_32 compiles with a modified oled keymap and the following changes:

#define HAL_USE_SPI TRUE in halconf.h
#define KINETIS_SPI_USE_SPI0 TRUE in mcuconf.h

And config.h:

#define ST7565_A0_PIN  C7
#define ST7565_RST_PIN C8
#define ST7565_SS_PIN  C4

#define ST7565_SPI_CLK_DIVISOR 32

#define SPI_DRIVER   SPID1
#define SPI_SCK_PIN  C5
#define SPI_MISO_PIN D3
#define SPI_MOSI_PIN C6

#define SPI_SCK_PAL_MODE  PAL_MODE_ALTERNATIVE_2
#define SPI_MISO_PAL_MODE PAL_MODE_ALTERNATIVE_2
#define SPI_MOSI_PAL_MODE PAL_MODE_ALTERNATIVE_2

Note that the MISO config is currently required, but shouldn't be, as some SPI devices (like the ST7565) only have a MOSI line. So I have set it to D3, which can also be SPI0 MISO, but on the Ergodox Infinity this is used as one of the UART lines.

[firetech]

Note that the MISO config is currently required, but shouldn't be, as some SPI devices (like the ST7565) only have a MOSI line. So I have set it to D3, which can also be SPI0 MISO, but on the Ergodox Infinity this is used as one of the UART lines.

Yeah... I noticed. :P As far as I could see, the pin config is only used for setting the pin direction etc, not for setting up SPI, but I may be mistaken?

[firetech]

So this seems to work 👍

Edit: Code here.