blob: aa406ae5b194fb042983cc887d537ad793721af2 [file] [log] [blame]
/*
* Copyright (c) 2020 Teslabs Engineering S.L.
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT st_stm32_fmc
#include <device.h>
#include <drivers/clock_control/stm32_clock_control.h>
#include <pinmux/pinmux_stm32.h>
#include <logging/log.h>
LOG_MODULE_REGISTER(memc_stm32, CONFIG_MEMC_LOG_LEVEL);
struct memc_stm32_config {
uint32_t fmc;
struct stm32_pclken pclken;
const struct soc_gpio_pinctrl *pinctrl;
size_t pinctrl_len;
};
static int memc_stm32_init(const struct device *dev)
{
const struct memc_stm32_config *config = dev->config;
int r;
const struct device *clk;
/* configure pinmux */
r = stm32_dt_pinctrl_configure(config->pinctrl, config->pinctrl_len,
config->fmc);
if (r < 0) {
LOG_ERR("FMC pinctrl setup failed (%d)", r);
return r;
}
/* enable FMC peripheral clock */
clk = DEVICE_DT_GET(STM32_CLOCK_CONTROL_NODE);
r = clock_control_on(clk, (clock_control_subsys_t *)&config->pclken);
if (r < 0) {
LOG_ERR("Could not initialize FMC clock (%d)", r);
return r;
}
return 0;
}
static const struct soc_gpio_pinctrl pinctrl[] = ST_STM32_DT_INST_PINCTRL(0, 0);
static const struct memc_stm32_config config = {
.fmc = DT_INST_REG_ADDR(0),
.pclken = { .bus = DT_INST_CLOCKS_CELL(0, bus),
.enr = DT_INST_CLOCKS_CELL(0, bits) },
.pinctrl = pinctrl,
.pinctrl_len = ARRAY_SIZE(pinctrl),
};
DEVICE_DT_INST_DEFINE(0, memc_stm32_init, NULL, NULL,
&config, POST_KERNEL, CONFIG_MEMC_INIT_PRIORITY, NULL);