@@ -365,10 +365,14 @@ static int atmel_qspi_set_cfg(struct atmel_qspi *aq,
if (dummy_cycles)
ifr |= QSPI_IFR_NBDUM(dummy_cycles);
- /* Set data enable */
- if (op->data.nbytes)
+ /* Set data enable and data transfer type. */
+ if (op->data.nbytes) {
ifr |= QSPI_IFR_DATAEN;
+ if (op->addr.nbytes)
+ ifr |= QSPI_IFR_TFRTYP_MEM;
+ }
+
/*
* If the QSPI controller is set in regular SPI mode, set it in
* Serial Memory Mode (SMM).
@@ -393,7 +397,7 @@ static int atmel_qspi_set_cfg(struct atmel_qspi *aq,
atmel_qspi_write(icr, aq, QSPI_WICR);
atmel_qspi_write(ifr, aq, QSPI_IFR);
} else {
- if (op->data.dir == SPI_MEM_DATA_OUT)
+ if (op->data.nbytes && op->data.dir == SPI_MEM_DATA_OUT)
ifr |= QSPI_IFR_SAMA5D2_WRITE_TRSFR;
/* Set QSPI Instruction Frame registers */
Following error was seen when mounting a 16MByte ubifs: UBIFS error (ubi0:0 pid 1893): check_lpt_type.constprop.6: invalid type (15) in LPT node type QSPI_IFR.TFRTYP was not set correctly. When data transfer is enabled and one wants to access the serial memory through AHB in order to: - read in the serial memory, but not a memory data, for example a JEDEC-ID, QSPI_IFR.TFRTYP must be written to '0' (both sama5d2 and sam9x60). - read in the serial memory, and particularly a memory data, TFRTYP must be written to '1' (both sama5d2 and sam9x60). - write in the serial memory, but not a memory data, for example writing the configuration or the QSPI_SR, TFRTYP must be written to '2' for sama5d2 and to '0' for sam9x60. - write in the serial memory in particular to program a memory data, TFRTYP must be written to '3' for sama5d2 and to '1' for sam9x60. Fix the setting of the QSPI_IFR.TFRTYP field. Fixes: 2d30ac5ed633 ("mtd: spi-nor: atmel-quadspi: Use spi-mem interface for atmel-quadspi driver") Cc: <stable@vger.kernel.org> # v5.0+ Reported-by: Tom Burkart <tom@aussec.com> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> --- drivers/spi/atmel-quadspi.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)