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Merge branch 'feature/spi_burst_desc' into 'master'

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spi_master: change to DMA burst mode when access descriptors

See merge request idf/esp-idf!2824
This commit is contained in:
Jeroen Domburg 2018-08-21 16:54:38 +08:00
commit 4eb28b9ace
1 changed files with 2 additions and 0 deletions
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components/driver/spi_master.c
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@ -611,6 +611,8 @@ static void SPI_MASTER_ISR_ATTR spi_intr(void *arg)
host->hw->dma_in_link.start=0;
host->hw->dma_conf.val &= ~(SPI_OUT_RST|SPI_IN_RST|SPI_AHBM_RST|SPI_AHBM_FIFO_RST);
host->hw->dma_conf.out_data_burst_en=1;
host->hw->dma_conf.indscr_burst_en=1;
host->hw->dma_conf.outdscr_burst_en=1;
//Set up QIO/DIO if needed
host->hw->ctrl.val &= ~(SPI_FREAD_DUAL|SPI_FREAD_QUAD|SPI_FREAD_DIO|SPI_FREAD_QIO);
host->hw->user.val &= ~(SPI_FWRITE_DUAL|SPI_FWRITE_QUAD|SPI_FWRITE_DIO|SPI_FWRITE_QIO);