Linux/AM5718: QSPI boot fails on IDK

So QSPI boot is broken using SDK 05.00.00.15. What was the previous version in which QSPI was working. Can you confirm it is still working using the same board?

Hi,
Use the SDK 05.00.00.15 to boot normally to the SD card.
and It was confirmed that it was boot with QSPI using SDK 03.01.00.06.

I'm able to achieve QSPI book on 0.5.00.00.15. Therefore you will need to identify what specific changes related to QSPI boot is causing the

Trying to boot from SPI
Invalid bus 0 (err=-19)
SPI probe failed.

Perhaps the chip select is invalid, SPI pin muxing has changed.

I am using u-boot 2018 and I have not modified pinmux.

The pinmux on the source code is shown below.

mux mode 1 is qspi.
-------------------------------------- mux_data.h -----------------------------------------------

{GPMC_A13, (M1 | PIN_INPUT | MANUAL_MODE)}, /* gpmc_a13.qspi1_rtclk */
{GPMC_A14, (M1 | PIN_INPUT | MANUAL_MODE)}, /* gpmc_a14.qspi1_d3 */
{GPMC_A15, (M1 | PIN_INPUT | MANUAL_MODE)}, /* gpmc_a15.qspi1_d2 */
{GPMC_A16, (M1 | PIN_INPUT | MANUAL_MODE)}, /* gpmc_a16.qspi1_d0 */
{GPMC_A17, (M1 | PIN_INPUT | MANUAL_MODE)}, /* gpmc_a17.qspi1_d1 */
{GPMC_A18, (M1 | PIN_OUTPUT | MANUAL_MODE)}, /* gpmc_a18.qspi1_sclk */
{GPMC_CS2, (M1 | PIN_OUTPUT | MANUAL_MODE)}, /* gpmc_cs2.qspi1_cs0 */

Although I tried this guide,
The problem was not solved.

Please attached your .config file and dtb files being used.