drivers: pinctrl: Add kinetis pinctrl driver
Add kinetis pinctrl driver. Driver initializes clocks for each port, and exposes the pinctrl_configure_pins function required for pinctrl support. Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
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4 changed files with 95 additions and 0 deletions
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@ -10,3 +10,4 @@ zephyr_library_sources_ifdef(CONFIG_PINCTRL_NRF pinctrl_nrf.c)
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zephyr_library_sources_ifdef(CONFIG_PINCTRL_RCAR_PFC pfc_rcar.c)
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zephyr_library_sources_ifdef(CONFIG_PINCTRL_RPI_PICO pinctrl_rpi_pico.c)
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zephyr_library_sources_ifdef(CONFIG_PINCTRL_STM32 pinctrl_stm32.c)
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zephyr_library_sources_ifdef(CONFIG_PINCTRL_NXP_KINETIS pinctrl_kinetis.c)
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@ -35,5 +35,6 @@ source "drivers/pinctrl/Kconfig.nrf"
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source "drivers/pinctrl/Kconfig.rcar"
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source "drivers/pinctrl/Kconfig.rpi_pico"
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source "drivers/pinctrl/Kconfig.stm32"
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source "drivers/pinctrl/Kconfig.kinetis"
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endif # PINCTRL
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11
drivers/pinctrl/Kconfig.kinetis
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11
drivers/pinctrl/Kconfig.kinetis
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@ -0,0 +1,11 @@
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# Copyright (c) 2022 NXP
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# SPDX-License-Identifier: Apache-2.0
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DT_COMPAT_NXP_KINETIS_PINCTRL := nxp,kinetis-pinctrl
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config PINCTRL_NXP_KINETIS
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bool "Pin controller driver for NXP Kinetis MCUs"
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depends on SOC_FAMILY_KINETIS
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default $(dt_compat_enabled,$(DT_COMPAT_NXP_KINETIS_PINCTRL))
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help
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Enable pin controller driver for NXP Kinetis MCUs
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82
drivers/pinctrl/pinctrl_kinetis.c
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82
drivers/pinctrl/pinctrl_kinetis.c
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@ -0,0 +1,82 @@
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/*
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* Copyright (c) 2022 NXP
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT nxp_kinetis_pinmux
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#include <drivers/pinctrl.h>
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#include <fsl_clock.h>
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/* Port register addresses. */
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static PORT_Type *ports[] = {
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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(porta)),
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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(portb)),
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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(portc)),
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#if DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT) == 5
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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(portd)),
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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(porte)),
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#endif
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};
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#define PIN(mux) (((mux) & 0xFC00000) >> 22)
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#define PORT(mux) (((mux) & 0xF0000000) >> 28)
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#define PINCFG(mux) ((mux) & Z_PINCTRL_KINETIS_PCR_MASK)
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struct pinctrl_mcux_config {
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clock_ip_name_t clock_ip_name;
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};
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int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt,
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uintptr_t reg)
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{
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for (uint8_t i = 0; i < pin_cnt; i++) {
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PORT_Type *base = ports[PORT(pins[i])];
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uint8_t pin = PIN(pins[i]);
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uint16_t mux = PINCFG(pins[i]);
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base->PCR[pin] = (base->PCR[pin] & (~Z_PINCTRL_KINETIS_PCR_MASK)) | mux;
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}
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return 0;
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}
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/* Kinetis pinmux driver binds to the same DTS nodes,
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* and handles clock init. Only bind to these nodes if pinmux driver
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* is disabled.
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*/
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#ifndef CONFIG_PINMUX
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static int pinctrl_mcux_init(const struct device *dev)
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{
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const struct pinctrl_mcux_config *config = dev->config;
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CLOCK_EnableClock(config->clock_ip_name);
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return 0;
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}
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#if DT_NODE_HAS_STATUS(DT_INST(0, nxp_kinetis_ke1xf_sim), okay)
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#define INST_DT_CLOCK_IP_NAME(n) \
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DT_REG_ADDR(DT_INST_PHANDLE(n, clocks)) + DT_INST_CLOCKS_CELL(n, name)
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#else
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#define INST_DT_CLOCK_IP_NAME(n) \
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CLK_GATE_DEFINE(DT_INST_CLOCKS_CELL(n, offset), \
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DT_INST_CLOCKS_CELL(n, bits))
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#endif
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#define PINCTRL_MCUX_INIT(n) \
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static const struct pinctrl_mcux_config pinctrl_mcux_##n##_config = {\
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.clock_ip_name = INST_DT_CLOCK_IP_NAME(n), \
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}; \
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\
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DEVICE_DT_INST_DEFINE(n, \
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&pinctrl_mcux_init, \
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NULL, \
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NULL, &pinctrl_mcux_##n##_config, \
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PRE_KERNEL_1, \
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0, \
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NULL);
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DT_INST_FOREACH_STATUS_OKAY(PINCTRL_MCUX_INIT)
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#endif
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