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emac: reduce rx burst length to avoid SPI DMA collision bug

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See <https://github.com/espressif/esp-idf/issues/7380>.
This commit is contained in:
Simon Schubert 2021-11-10 20:22:13 -08:00 committed by David Čermák
parent 723212717a
commit a6ca3d39a8
1 changed files with 1 additions and 1 deletions
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2
components/hal/emac_hal.c
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@ -297,7 +297,7 @@ void emac_hal_init_dma_default(emac_hal_context_t *hal)
/* Use Separate PBL */
emac_ll_use_separate_pbl_enable(hal->dma_regs, true);
/* Set Rx/Tx DMA Burst Length */
emac_ll_set_rx_dma_pbl(hal->dma_regs, EMAC_LL_DMA_BURST_LENGTH_32BEAT);
emac_ll_set_rx_dma_pbl(hal->dma_regs, EMAC_LL_DMA_BURST_LENGTH_8BEAT);
emac_ll_set_prog_burst_len(hal->dma_regs, EMAC_LL_DMA_BURST_LENGTH_32BEAT);
/* Enable Enhanced Descriptor,8 Words(32 Bytes) */
emac_ll_enhance_desc_enable(hal->dma_regs, true);