ADSP SC589 linux add in no u-boot output

Hi tedo,

I've verified it locally, it works well on sc589-ezkit BOM 1.8 board with 1.3.1 u-boot images. It's normal when the sys_fault LED is on while using openocd+gdb to flash the uboot.

I've attached the logs below:

GDB logs:

jianchen@jianchen-OptiPlex-7020:/opt/analog/cces-linux-add-in/1.3.1/uboot-sc5xx-1.3.1/bin$ arm-none-eabi-gdb u-boot-sc589-ezkit
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Reading symbols from u-boot-sc589-ezkit...done.
(gdb) target remote :3333
Remote debugging using :3333
0x00004884 in ?? ()
(gdb) load init-sc589-ezkit.elf
Loading section .text, size 0x580 lma 0x20080000
Start address 0x20080024, load size 1408
Transfer rate: 24 KB/sec, 1408 bytes/write.
(gdb) c
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x0000546e in ?? ()
(gdb) load u-boot-sc589-ezkit.
u-boot-sc589-ezkit.bin u-boot-sc589-ezkit.ldr
(gdb) load u-boot-sc589-ezkit.
u-boot-sc589-ezkit.bin u-boot-sc589-ezkit.ldr
(gdb) load u-boot-sc589-ezkit
Loading section .text, size 0x2dc64 lma 0xc2200000
Loading section .rodata, size 0xb3cb lma 0xc222dc64
Loading section .hash, size 0x2c lma 0xc2239030
Loading section .data, size 0x224e lma 0xc223905c
Loading section .got.plt, size 0xc lma 0xc223b2ac
Loading section .u_boot_list, size 0x878 lma 0xc223b2b8
Loading section .rel.dyn, size 0x7268 lma 0xc223bb30
Loading section .dynsym, size 0x60 lma 0xc2242d98
Loading section .dynstr, size 0x2a lma 0xc2242df8
Loading section .dynamic, size 0x80 lma 0xc2242e24
Loading section .interp, size 0x14 lma 0xc2242ea4
Start address 0xc2200000, load size 274099
Transfer rate: 28 KB/sec, 3606 bytes/write.
(gdb) c
Continuing.

Minicom log:

U-Boot 2015.01 ADI-1.3.1 (Jun 28 2019 - 11:03:56), Build: jenkins-1.3.1-IP119-U9

CPU: ADSP ADSP-SC589-0.1 (Detected Rev: 1.1) (spi flash boot)
VCO: 450 MHz, Cclk0: 450 MHz, Sclk0: 112.500 MHz, Sclk1: 112.500 MHz, DCLK: 450z
OCLK: 150 MHz
I2C: ready
DRAM: 224 MiB
MMC: SC5XX SDH: 0
SF: Detected W25Q128BV with page size 256 Bytes, erase size 4 KiB, total 16 MiB
*** Warning - bad CRC, using default environment

In: serial
Out: serial
Err: serial
other init
Net: dwmac.3100c000
Hit any key to stop autoboot: 0
sc #

Please help to attach your logs if you still have this problem, thanks a lot.

Hello tedo,

It seems there's nothing wrong from your output log, could you double check your hardware and software just as your guess.

1. Check the USB to UART cable, Make sure there is ttyUSB0 in /dev directory.

      test@test-OptiPlex-3050:~$ ls /dev/tty
      ... ttyUSB0

2. Check software configuration,to make sure there is nothing wrong with the minicom setup: 

• sudo minicom -s

Within minicom: “Serial port setup”

• Select Serial port setup
  • Set Serial Device to /dev/ttyUSB0
  • Set Bps/Par/Bits to 57600 8N1
  • Set Hardware Flow Control to No
  • Close the Serial port setup option

• Select Save setup as dfl

• Select Exit

If you still have this issue please let us know.

Thanks & Best Regards,
Huan Feng

Another point is please make sure you are doing all of these operations in a local host not in a virtual machine as in vm there will be hardware connection probelms. Thanks a lot.

I've found the issue HuanFeng Gregchen

It was indeed the USB to UART that was not functioning, due to missing the U26 chip.
Soldering wires of an FTDI USB cable to the designated pins of U26 did the trick.

Works like a charm now.

Now to find out how to port the init stub/u-boot for this board to a custom board that uses the sc587 processor.

Thanks for your help and input.