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spi: fix: Call mxs_reset_block() during DM/DTS probe 

Without this change the DM/DTS version of mxs_spi driver doesn't reset the
SPI IP block in probe.
As a result this driver (when used solely on U-Boot proper) relies on reset
performed by mxs spi driver in SPL.

In the use case where eMMC is used in SPL as a boot primary device, the
mxs_reset_block() is not called at all and DM/DTS aware SPI driver in
U-Boot proper is malfunctioning.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2019-09-05 09:54:57 +02:00 committed by Stefano Babic
parent 3c50e01566
commit c2050e10e1
1 changed files with 2 additions and 0 deletions
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2
drivers/spi/mxs_spi.c
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@ -436,6 +436,8 @@ static int mxs_spi_probe(struct udevice *bus)
priv->dma_channel = plat->dma_id; priv->dma_channel = plat->dma_id;
priv->clk_id = plat->clk_id; priv->clk_id = plat->clk_id;
mxs_reset_block(&priv->regs->hw_ssp_ctrl0_reg);
ret = mxs_dma_init_channel(priv->dma_channel); ret = mxs_dma_init_channel(priv->dma_channel);
if (ret) { if (ret) {
printf("%s: DMA init channel error %d\n", __func__, ret); printf("%s: DMA init channel error %d\n", __func__, ret);