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esp_eth_mac_esp32: optionally setup SMI GPIO's

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This enables passing smi_mdio_gpio_num = -1 to disable that signal

Merges https://github.com/espressif/esp-idf/pull/5903
This commit is contained in:
Yorick van Pelt 2020-09-23 18:03:10 +02:00 committed by morris
parent 59b763bb9a
commit 65707cfb41
2 changed files with 15 additions and 11 deletions
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4
components/esp_eth/include/esp_eth_mac.h
View File

@ -298,8 +298,8 @@ typedef struct {
uint32_t sw_reset_timeout_ms; /*!< Software reset timeout value (Unit: ms) */
uint32_t rx_task_stack_size; /*!< Stack size of the receive task */
uint32_t rx_task_prio; /*!< Priority of the receive task */
int smi_mdc_gpio_num; /*!< SMI MDC GPIO number */
int smi_mdio_gpio_num; /*!< SMI MDIO GPIO number */
int smi_mdc_gpio_num; /*!< SMI MDC GPIO number, set to -1 could bypass the SMI GPIO configuration */
int smi_mdio_gpio_num; /*!< SMI MDIO GPIO number, set to -1 could bypass the SMI GPIO configuration */
uint32_t flags; /*!< Flags that specify extra capability for mac driver */
} eth_mac_config_t;

22
components/esp_eth/src/esp_eth_mac_esp32.c
View File

@ -312,15 +312,19 @@ static void emac_esp32_rx_task(void *arg)
static void emac_esp32_init_smi_gpio(emac_esp32_t *emac)
{
/* Setup SMI MDC GPIO */
gpio_set_direction(emac->smi_mdc_gpio_num, GPIO_MODE_OUTPUT);
esp_rom_gpio_connect_out_signal(emac->smi_mdc_gpio_num, EMAC_MDC_O_IDX, false, false);
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[emac->smi_mdc_gpio_num], PIN_FUNC_GPIO);
/* Setup SMI MDIO GPIO */
gpio_set_direction(emac->smi_mdio_gpio_num, GPIO_MODE_INPUT_OUTPUT);
esp_rom_gpio_connect_out_signal(emac->smi_mdio_gpio_num, EMAC_MDO_O_IDX, false, false);
esp_rom_gpio_connect_in_signal(emac->smi_mdio_gpio_num, EMAC_MDI_I_IDX, false);
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[emac->smi_mdio_gpio_num], PIN_FUNC_GPIO);
if (emac->smi_mdc_gpio_num >= 0) {
/* Setup SMI MDC GPIO */
gpio_set_direction(emac->smi_mdc_gpio_num, GPIO_MODE_OUTPUT);
esp_rom_gpio_connect_out_signal(emac->smi_mdc_gpio_num, EMAC_MDC_O_IDX, false, false);
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[emac->smi_mdc_gpio_num], PIN_FUNC_GPIO);
}
if (emac->smi_mdio_gpio_num >= 0) {
/* Setup SMI MDIO GPIO */
gpio_set_direction(emac->smi_mdio_gpio_num, GPIO_MODE_INPUT_OUTPUT);
esp_rom_gpio_connect_out_signal(emac->smi_mdio_gpio_num, EMAC_MDO_O_IDX, false, false);
esp_rom_gpio_connect_in_signal(emac->smi_mdio_gpio_num, EMAC_MDI_I_IDX, false);
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[emac->smi_mdio_gpio_num], PIN_FUNC_GPIO);
}
}
static esp_err_t emac_esp32_init(esp_eth_mac_t *mac)