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esp_eth: EMAC start/stop optimization

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This commit is contained in:
Ondrej Kosta
2022-03-07 08:36:28 +01:00
parent 3c8bab0285
commit 8f1f424390
4 changed files with 19 additions and 16 deletions
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17
components/hal/esp32/emac_hal.c
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@@ -436,22 +436,25 @@ esp_err_t emac_hal_stop(emac_hal_context_t *hal)
/* Stop DMA transmission */
opm.start_stop_transmission_command = 0;
/* Stop DMA reception */
opm.start_stop_rx = 0;
hal->dma_regs->dmaoperation_mode = opm;
if (hal->mac_regs->emacdebug.mactfcs != 0x0) {
/* Previous transmit in progress */
return ESP_ERR_INVALID_STATE;
}
/* Disable transmit state machine of the MAC for transmission on the MII */
cfg.tx = 0;
hal->mac_regs->gmacconfig = cfg;
/* Disable receive state machine of the MAC for reception from the MII */
cfg.rx = 0;
/* Disable transmit state machine of the MAC for transmission on the MII */
cfg.tx = 0;
hal->mac_regs->gmacconfig = cfg;
if (hal->mac_regs->emacdebug.mtlrfrcs != 0x0) {
/* Previous receive copy in progress */
return ESP_ERR_INVALID_STATE;
}
/* Stop DMA reception */
opm.start_stop_rx = 0;
hal->dma_regs->dmaoperation_mode = opm;
/* Disable Ethernet MAC and DMA Interrupt */
hal->dma_regs->dmain_en.val = 0x0;