Hi Frieder, [..] > > > > Ok, I will have a look at what could make the chip selection fail in > > case of AHB read. > > Could you try with this change applied: > > @@ -503,7 +503,7 @@ static void fsl_qspi_select_mem(struct fsl_qspi *q, struct > spi_device *spi) > map_addr = q->memmap_phy; > else > map_addr = q->memmap_phy + > - 2 * q->devtype_data->ahb_buf_size; > + q->devtype_data->ahb_buf_size; > > qspi_writel(q, map_addr, q->iobase + QUADSPI_SFA1AD + > (i * 4)); > } >
I have tried above change and also have done few more changes but still AHB read for CS1 is falling. I guess we need to implement dynamic memory mapping [1] for AHB Read as was being done in previous driver implementation. Would try this and update you. [1] https://patchwork.ozlabs.org/patch/503655/ -- Regards Yogesh Gaur [..]
