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pinmux: Introduce new ksdk pinmux driver

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Kinetis SoCs contain one or more PORT modules to handle pin muxing and
pin configuration. Unlike the existing k64 pinmux driver, this driver
handles each PORT module individually and can be used for other Kinetis
SoCs.

This driver uses KSDK CMSIS register accesses to the PORT module rather
than the KSDK PORT driver (fsl_port.h), because the Zephyr pinmux
interface contains both set() and get() functions to access the pin
configuration. The KSDK PORT driver only contains a set() function
(which is a very thin static inline function to modify the PCR
register), therefore building a shim on top of it would result in a
strange mix of using the KSDK PORT driver for the set() and a direct
CMSIS register access for the get().

Jira: ZEP-1393
Change-Id: I2f7c6b08b207350697d590dcd665223f81de9f9e
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This commit is contained in:
Maureen Helm 2016-11-23 09:10:03 -06:00 • committed by Anas Nashif
commit a4e823eee0
9 changed files with 316 additions and 1 deletions
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5
drivers/pinmux/Makefile
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@ -1,9 +1,12 @@
ccflags-y +=-I$(srctree)/drivers
# Board initialization
obj-$(CONFIG_PINMUX_K64) += k64/pinmux.o
ifdef CONFIG_PINMUX_K64
obj-y += k64/pinmux.o
obj-$(CONFIG_BOARD_FRDM_K64F) += k64/pinmux_board_frdm_k64f.o
obj-$(CONFIG_BOARD_HEXIWEAR_K64) += k64/pinmux_board_hexiwear.o
endif
obj-$(CONFIG_PINMUX_KSDK) += pinmux_ksdk.o
obj-$(CONFIG_PINMUX_STM32) += stm32/pinmux_stm32.o
obj-$(CONFIG_PINMUX_BEETLE) += beetle/pinmux_board_v2m_beetle.o
obj-$(CONFIG_BOARD_NUCLEO_F103RB) += stm32/pinmux_board_nucleo_f103rb.o