74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/*
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* Copyright (c) 2022 Henrik Brix Andersen <henrik@brixandersen.dk>
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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 openisa_rv32m1_pinmux
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#include <zephyr/drivers/pinctrl.h>
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#include <fsl_clock.h>
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#include <soc.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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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(portd)),
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(PORT_Type *)DT_REG_ADDR(DT_NODELABEL(porte)),
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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_RV32M1_PCR_MASK)
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struct pinctrl_rv32m1_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_RV32M1_PCR_MASK)) | mux;
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}
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return 0;
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}
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/* RV32M1 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_rv32m1_init(const struct device *dev)
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{
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const struct pinctrl_rv32m1_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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#define PINCTRL_RV32M1_INIT(n) \
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static const struct pinctrl_rv32m1_config pinctrl_rv32m1_##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_rv32m1_init, \
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NULL, \
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NULL, &pinctrl_rv32m1_##n##_config, \
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PRE_KERNEL_1, \
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1, \
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NULL);
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DT_INST_FOREACH_STATUS_OKAY(PINCTRL_RV32M1_INIT)
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#endif
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