[U-Boot] socfpga 2016.05, CV socdk Rev E1, SPL and u-boot fail when booting from QSPI

[Christian Didriksson]

Hi All,

I have been struggling for quite some time now to get SPL and u-boot to run from QSPI-flash. Yesterday I was able to identify a workaround to get the SPL going by disabling quad mode for the flash (seems identified by http://lists.denx.de/pipermail/u-boot/2016-June/256671.html). However u-boot always hangs after printing memory size. I have tried to search the archive and have seen posts about hanging here, but nothing I can relate to my setup. I have tested to use Altera's SPL (2013.01.01) and u-boot-2016.5 and this combo seems to work.

I also notice that the frequency (max-spi-frequency) in the dts-file is not picked up for some reason?

Any help to fix the u-boot hang problem would be highly appreciated.

Current printout (with added debug output):

U-Boot SPL 2016.05 NGA QSPI -g133f59a-dirty (Jun 09 2016 - 17:06:20)
drivers/ddr/altera/sequencer.c: Preparing to start memory calibration
drivers/ddr/altera/sequencer.c: CALIBRATION PASSED
drivers/ddr/altera/sequencer.c: Calibration complete
Trying to boot from SPI
spl_spi_load_image: bus=0, cs=0, speed=50000000, mode=3
cadence_spi_ofdata_to_platdata: regbase=ff705000 ahbbase=ffa00000 max-frequency=500000 page-size=256
spi_flash_std_probe: slave=01100368, cs=0
SF: Read data capture delay calibrated to 7 (0 - 15)
cadence_spi_set_speed: speed=100000
cadence_spi_xfer: len=1 [bytes]
cadence_spi_xfer: len=5 [bytes]
SF: Got idcodes
00000000: 20 ba 20 10 00                                      . ..
SF: Detected N25Q512
cadence_spi_xfer: len=1 [bytes]
cadence_spi_xfer: len=1 [bytes]
spi_flash_decode_fdt: Cannot decode address
cadence_spi_xfer: len=0 [bytes]
cadence_spi_xfer: len=0 [bytes]
SF: Detected N25Q512 with page size 256 Bytes, erase size 64 KiB, total 64 MiB
SF: Read data capture delay calibrated to 7 (0 - 15)
cadence_spi_set_speed: speed=500000
cadence_spi_xfer: len=5 [bytes]
cadence_spi_xfer: len=64 [bytes]
cadence_spi_xfer: len=5 [bytes]
cadence_spi_xfer: len=443714 [bytes]


U-Boot 2016.05 NGA QSPI -g133f59a-dirty (Jun 09 2016 - 17:06:20 +0200)

CPU:   Altera SoCFPGA Platform
FPGA:  Altera Cyclone V, SE/A6 or SX/C6 or ST/D6, version 0x0
BOOT:  QSPI Flash (1.8V)
       Watchdog enabled
I2C:   ready
DRAM:  1 GiB


Best regards,

Christian