Tiny4412 Burn write uboot to eMMC step

Write Uboot to eMMC, and drive through eMMC, not only with SD card booting

Before burning write uboot, use the following command to view the EMMC card information and partition information:

Mmcinfo 0: View the MMC card information, 0 means SD card, 1 means eMMC card

Fdisk-p 0: View the MMC card partition information

1. Format eMMC card:

Fdisk-c 320 809 524: Refer to the previously viewed Information format

Fatformat MMC 1:1

Ext3format MMC 1:2

Ext3format MMC 1:3

Ext3format MMC 1:4

2, will Bl1.bin, Bl2.bin, U-boot.bin, Tzsw.bin burned to eMMC

EMMC Open 1: Open eMMC file

Board Host

DNW 0x40000000 <----------> DNW E4412_N.bl1.bin

MMC write 1 0x40000000 0 0x10

DNW 0x40000000 <----------> DNW bl2.bin

MMC write 1 0x40000000 0x10 0x1c

DNW 0x40000000 <----------> DNW u-boot.bin

MMC write 1 0x40000000 0x30 0x21d

DNW 0x40000000 <----------> DNW e4412_tzsw.bin

MMC write 1 0x40000000 0x2c0 0xb8

eMMC Close 1

3: Start mode dial to eMMC start Uboot

4. Write to Linux image

FastBoot <--------------------->./fastboot-w

./fastboot Flash Kernel Zimage

.........

Linux boot success

5. Write to File system

After the network file system is hung over NFS

Mount/dev/mmcblk0p3/mnt

Copy the file system in, then unzip it.

Enter Uboot to set environment variables:

Set Bootargs console=ttysac0 root=/dev/mmcblk0p3 rootfstype=ext4 init=linuxrc uhost0=y ctp=2

Restart automatic access to Linux

Tiny4412 Burn write uboot to eMMC step