4. Switching Upgrade Storage¶
This article describes what you should pay attention to when burning firmware when the host is attached to both the eMMC(default) and the NOR Flash storage media:
As shown in the figure below, the device has a Nor Flash storage media.
4.2. Loader Mode¶
If you enter the loader download mode by executing ‘reboot loader’ in software or by using the hardware Recovery key, you don’t need to look at the next content, just skip to the operation of 《upgrade_firmware》 .
4.3. Maskrom Mode¶
If you enter Maskrom mode through “How to enter MaskRom mode”, and the board has both Nor-Flash and EMMC storage media, this raises the question of which storage media we use to burn firmware. The following introduces how to download firmware to different storage media.
4.3.1. Download to Nor-Flash¶
In Maskrom mode, the system will download firmware to Nor-Flash by default if the board has the Nor-Flash. However, Nor-Flash storage space is too small to load the whole system firmware, so only small files will be load, such as
If we accidentally download the whole system firmware to Nor-Flash, the board will turn brick due to the failure of downloading firmware(
下载固件失败). At this time, if we want to re-enter Maskrom mode, we could short circuit test points(or pins) between D0(CLK) and GND of Nor-Flash, refer to chapter MaskRom mode for more details.
4.3.2. Download to EMMC¶
There are two methods to burn firmware into EMMC. One is the burning method provided by Rockchip, which needs to burn
MiniLoaderAll.bin and switch storage media.
The other is a reference burning method provided by Firefly to facilitate everyone to burn, this method does not need to switch the memory storage media in operation, and it can also support uprade_tool for Linux System.
126.96.36.199. The Method from Firefly¶
This method needs to burn the unified firmware twice. For the first time, directly burn the repair firmware RK356x_NorFlash2eMMC-Loader_xxx.img provided by Firefly under Maskrom, the firmware will automatically erase Nor-Flash and switch to the loader mode of EMMC. For the second time, directly burn the firmware you need to upgrade
188.8.131.52.1. Operating under Windows system¶
wait for about 20s after burning successfully, and the system enters loader mode
Firmwarebutton again to select the firmware to be updated, such as update.img, and then click
Upgradebutton to upgrade
184.108.40.206.2. Operating under Linux system¶
firefly@T-chip:~/severdir/down_firmware$ upgrade_tool Program Data in /home/firefly/.config/upgrade_tool List of rockusb connected DevNo=1 Vid=0x2207,Pid=0x350a,LocationID=16 Mode=Maskrom Found 1 rockusb,Select input DevNo,Rescan press <R>,Quit press <Q>:q firefly@T-chip:~/severdir/down_firmware$ upgrade_tool uf RK356x_NorFlash2eMMC-Loader_20211209.img firefly@T-chip:~/severdir/down_firmware$ upgrade_tool Program Data in /home/firefly/.config/upgrade_tool List of rockusb connected DevNo=1 Vid=0x2207,Pid=0x350a,LocationID=16 Mode=Loader Found 1 rockusb,Select input DevNo,Rescan press <R>,Quit press <Q>:q firefly@T-chip:~/severdir/down_firmware$ upgrade_tool uf update.img
220.127.116.11. The Method from Rockchip¶
To download firmware to EMMC, we need to download Boot first, and then select to switch storage media to EMMC. The specific operation steps are as follows:
Step 1: We need to get
MiniLoaderAll.bin which will download to the Boot, this kind * Loader *. bin can be compiled firmware of the corresponding device model in SDK to generate, we could find it in the directory
#Android SDK rockdev/Image-rk3566_roc_pc/MiniLoaderAll.bin #Linux SDK rockdev/MiniLoaderAll.bin
If we have not compiled, we can download a MiniLoaderAll.bin for the corresponding CPU model.
Step 2: Click the option
Adanced Function of the RKDevTool found at directory
RKTools/windows/AndroidTool in SDK, and then download the file
MiniLoaderAll.bin to the Boot by clicking the button
MiniLoaderAll.bin has been selected at the Boot text box. The figure shown as following:
Step 3: Click the button
List Storageto get the storage media list, the
SPINOR is selected in the list, we click
EraseAll to erase Nor-Flash
Xmeans device does not exist
0means the media exist, but is not selected
√means the media exist and in the selected state
Step 4: Select the storage media
Emmc of the list and click the button
the storage media
Emmc state of the list will go from
√, indicating EMMC is selected. At this time, the firmware we dowload to the board will be burned into EMMC
Step 5: click the button
EraseAll to erase EMMC
Step 6: Click the option
Upgrade Firmware，select one system firmware we want to download in and click
4.4.1. Download Firmware Fail in Maskrom mode¶
This failure is caused by the firmware burning directly into Nor-Flash. We must follow steps of Download to EMMC.
4.4.2. Enter in Uboot by Nor-Flash¶
Bootdev(atags): mtd 2 GUID Partition Table Header signature is wrong: 0xA9425BF5A94153F3 != 0x5452415020494645 *** ERROR: Can't write GPT header *** Backup GPT repair fail! PartType: EFI ... Device 0: unknown device No ethernet found. missing environment variable: pxeuuid ... Retrieving file: pxelinux.cfg/default No ethernet found. Config file not found No ethernet found. No ethernet found. =>
This phenomenon indicates that there are burned files in Nor-Flash, and it is necessary to erase Nor-Flash. We could erase Nor-Flash in this Uboot command line mode, it will take about 3-5 minutes
=> mtd erase nor0 Erasing 0x00000000 ... 0x01ffffff (8192 eraseblock(s)) => reboot
Nor-Flash also could be erased by AndroidTool, refer to chapter “How to enter MaskRom mode” to short circuit Nor-Flash to enter in Maskrom, the premise is that EMMC is empty.
If EMMC is not empty, you need to short circuit EMMC at the same time or press
ctrl+c to enter uboot command line and enter
rbrom during EMMC startup
U-Boot 2017.09 (Jul 07 2021 - 10:03:57 +0800) ... dwmmc@fe2b0000: 1, dwmmc@fe2c0000: 2, sdhci@fe310000: 0 Bootdev(atags): mmc 0 MMC0: HS200, 200Mhz ... pclk_pmu 100000 KHz Net: eth1: ethernet@fe010000, eth0: ethernet@fe2a0000 Hit key to stop autoboot('CTRL+C'): 0 => <INTERRUPT> => <INTERRUPT> => rbrom
And then, the mode is Maskrom, we follow steps of Download to EMMC