Tobias Waldekranz
e0144ef9a3
On the P2's the only reasonable way (in terms of hardware patching effort) of driving the LEDs is to have the green LEDs at the top and the yellow ones at the bottom.
aarch64
Microchip SparX-5i PCB135 (eMMC)
At present, only FIT images are supported via the SparX-5i eval board's U-Boot, which must contain a valid load address. If you are using this board, after selecting your base configuration, run the following command to supplement the existing config with the required FIT options:
make board-enable-sparx-fit
Unbricking
- Don't load a corrupt bootloader to begin with
- Done
If, for some reason, you didn't manage to follow step 1, you can use
the FLASH_PROG(J4) connector on the board to access the SPI flash
directly.
Using a Bus Blaster in combination with dangerspi, you can load a new bootloader. The schematic below details how to connect the Bus Blaster to the board, but the concept should be portable to any debugger/device based around an FTDI2232 chip.
Bus Blaster: FLASH_PROG (J4):
.---. .---.
VTG >o o| VTG SCK >o o| GND
TRST |o o| GND MISO |o o| #RESET_FLASH
TDI |o o| GND o o| 3V3
TMS |o o| GND #CS |o o| #SYSRESET
TCK o o| GND MOSI |o o| GND
RTCK o o| GND '---'
TDO |o o| GND
TSRST |o o| GND
DBGRQ |o o| GND
DBGACK |o o| GND
'---'
| Bus Blaster | FLASH_PROG |
|---|---|
VTG |
3V3 |
GND |
GND |
VTG |
#RESET_FLASH |
GND |
#SYSRESET |
TDI |
MOSI |
TMS |
#CS |
TCK |
SCK |
TDO |
MISO |
With the cable in place, build U-Boot with the correct configuration:
make fireant_boot_defconfig && make
To flash it to the board, connect the cable to J4 and run:
make board-sparx-flash-uboot