Booting the EVB-KSZ9477 from SD card about evb-ksz9477 HOT 4 OPEN

Please program the board with a NAND image first if the board is brand-new. A simple bootstrap firmware is required before U-Boot can be started from the SD card.
Another potential problem is the VARIO Select should be 3V3. Other selections cause the SD card not working.

from evb-ksz9477.

Thank you for the response.

Yes the board is brand new and the first initial step that I am implementing is about booting the board with SD card, also tried Flash programming on windows 7 x64 but did not worked. So tried with SD card.

Can you please explain me about the bootstrap firmware and also what are the initial steps for the new board should I implement inorder to make it work and start?

I am sorry if my questions are too basic for you as I am very new to this.

Thank you,
Samir

from evb-ksz9477.

The provided image files are at91bootstrap.bin, u-boot.bin, ubootEnvtFileNandFlash.bin, at91-sama5d3_xplained.dtb, zImage, and rootfs.ubi. The file at91bootstrap.bin is put first in NAND, then u-boot.bin for U-Boot, ubootEnvtFileNandFlash.bin for U-Boot environmental variables, at91-sama5d3_xplained.dtb for device tree, zImage for kernel, and rootfs.ubi for root filesystem.
In SD card two partitions are created. A regular DOS one holds boot.bin, u-boot.bin, at91-sama5d3_xplained.dtb, zImage, and uboot.env for the U-Boot environmental variables. The next linux partition holds the root filesystem.
I do not have problem booting from the SD card by disabling the NAND. Can you check whether the SD card is programmed properly with the files mentioned?
Also what is your problem of programming the NAND under Windows? The driver is just not detected and so the script cannot do anything?
And what is the display shown from the board? Just the "RomBOOT" message?

from evb-ksz9477.

when booting from NAND,the ksz9477 board serial puts error codes. i use 115200 as the rf writes.But why?

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