Joachim Wiberg
17a1b80b83
Infix defines its own Kconfig options with unprefixed names (IMAGE_*, QEMU_*, TRUSTED_KEYS*) and an INFIX_ prefix. Unprefixed names risk clashing with Buildroot and with other br2-externals/spins that source our tree. Rename all 86 options to a common IX_ prefix, collapsing the existing INFIX_ ones, e.g. INFIX_IMAGE_ID becomes IX_IMAGE_ID. The os-release INFIX_DESC field is a runtime interface, not a Kconfig option, and is kept; the qemu Config.in generator's @ARCH@ symbol is updated to match. Closes #1305 Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Microchip SAMA7G54-EK
The SAMA7G54-EK is an evaluation kit for the Microchip SAMA7G5 series, featuring an ARM Cortex-A7 processor @ 800 MHz with 512 MB DDR3L RAM.
The board features:
- 2x MACB Gigabit Ethernet ports
- 8 GB eMMC (SDMMC0) + microSD card slot (SDMMC1)
- QSPI NOR flash
- USB 2.0 host ports
- CAN bus interfaces
- Flexcom serial ports (UART, SPI, I2C)
How to Build
Since there are no pre-built images for ARM 32-bit, you need to build both Infix and the bootloader from source.
SD Card
-
Build the bootloader
make O=x-boot-sama7g54 sama7g54_ek_sd_boot_defconfig make O=x-boot-sama7g54 -
Build Infix
make O=x-arm arm_defconfig make O=x-arm -
Create the SD card image
./utils/mkimage.sh -b x-boot-sama7g54 -r x-arm microchip-sama7g54-ek
eMMC
-
Build the bootloader
make O=x-boot-sama7g54-emmc sama7g54_ek_emmc_boot_defconfig make O=x-boot-sama7g54-emmc -
Build Infix (same as above, skip if already built)
make O=x-arm arm_defconfig make O=x-arm -
Create the eMMC image
./utils/mkimage.sh -b x-boot-sama7g54-emmc -r x-arm -t emmc microchip-sama7g54-ek
Flashing to SD Card
Flash the image to a microSD card (at least 2 GB):
sudo dd if=x-boot-sama7g54/images/infix-arm-sdcard.img of=/dev/sdX \
bs=1M status=progress oflag=direct
You can also use bmaptool for faster writes:
sudo bmaptool copy x-boot-sama7g54/images/infix-arm-sdcard.img /dev/sdX
Warning
Ensure
/dev/sdXis the correct device for your SD card and not used by the host system! Uselsblkto verify.
Flashing to eMMC
The SAMA7G5EK has an on-board 8 GB eMMC (SDMMC0/mmc0). Jumper J22 controls if booting from onboard storage is allowed or not; open means allowed. When open, the SW4 button can also prevent booting from eMMC if held at power on.
The easiest method is to flash from a running SD card system:
-
Boot the board from SD card
-
Transfer the eMMC image to the board (USB drive, network, etc.)
-
Flash the eMMC:
sudo bmaptool copy emmc.img /dev/mmcblk0 -
Power off, remove SD card, and boot from eMMC
Booting the Board
- Insert the flashed SD card (or ensure eMMC is flashed)
- Connect an Ethernet cable
- Power up the board
- Find the assigned IP and SSH in, default login:
admin/admin
Console Port
The debug console is on Flexcom3 (active by default):
- Baud rate: 115200
- Data bits: 8
- Parity: None
- Stop bits: 1
Connect a USB-to-serial adapter to the board's debug UART header.
Warning
Use only 3.3V serial adapters.