From: Ashok Reddy Soma ashok.reddy.soma@amd.com
Before DMA read, ideally cache should be invalidated, so that data from memory will be updated to cache after DMA is completed. But flush_dcache_range is being used which is incorrect. Change flush_dcache_range to invalidate_dcache_range.
Signed-off-by: Ashok Reddy Soma ashok.reddy.soma@amd.com Signed-off-by: Venkatesh Yadav Abbarapu venkatesh.abbarapu@amd.com --- drivers/spi/zynqmp_gqspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/zynqmp_gqspi.c b/drivers/spi/zynqmp_gqspi.c index c4aee279aa..a506d15227 100644 --- a/drivers/spi/zynqmp_gqspi.c +++ b/drivers/spi/zynqmp_gqspi.c @@ -690,7 +690,7 @@ static int zynqmp_qspi_start_dma(struct zynqmp_qspi_priv *priv, writel(GQSPI_DMA_DST_I_STS_MASK, &dma_regs->dmaier); addr = (unsigned long)buf; size = roundup(priv->len, GQSPI_DMA_ALIGN); - flush_dcache_range(addr, addr + size); + invalidate_dcache_range(addr, addr + size);
while (priv->len) { zynqmp_qspi_calc_exp(priv, &gen_fifo_cmd);