static int eth_initialize(struct device *dev)
{
const struct eth_sam_dev_cfg *const cfg = DEV_CFG(dev);
cfg->config_func();
/* Enable GMAC module's clock */
soc_pmc_peripheral_enable(cfg->periph_id);
/* Connect pins to the peripheral */
soc_gpio_list_configure(cfg->pin_list, cfg->pin_list_size);
return 0;
}
static int i2c_sam_twi_initialize(struct device *dev)
{
const struct i2c_sam_twi_dev_cfg *const dev_cfg = DEV_CFG(dev);
struct i2c_sam_twi_dev_data *const dev_data = DEV_DATA(dev);
Twi *const twi = dev_cfg->regs;
u32_t bitrate_cfg;
int ret;
/* Configure interrupts */
dev_cfg->irq_config();
/* Initialize semaphore */
k_sem_init(&dev_data->sem, 0, 1);
/* Connect pins to the peripheral */
soc_gpio_list_configure(dev_cfg->pin_list, dev_cfg->pin_list_size);
/* Enable module's clock */
soc_pmc_peripheral_enable(dev_cfg->periph_id);
/* Reset TWI module */
twi->TWI_CR = TWI_CR_SWRST;
bitrate_cfg = _i2c_map_dt_bitrate(dev_cfg->bitrate);
ret = i2c_sam_twi_configure(dev, I2C_MODE_MASTER | bitrate_cfg);
if (ret < 0) {
LOG_ERR("Failed to initialize %s device", DEV_NAME(dev));
return ret;
}
/* Enable module's IRQ */
irq_enable(dev_cfg->irq_id);
LOG_INF("Device %s initialized", DEV_NAME(dev));
return 0;
}