PROCESSOR-SDK-AM64X: How to copy filesystem to EMMC

Himansu Sethi

Just to give a background, I am working on AM64x EVM remotely due to covid situation. Now I am able to load U-boot through UART and transfer all the U-boot binaries to EMMC from U-boot console. I am also able to boot Linux by using the RAMDISK filesystem as I don't have an SD card on the board to use as a filesystem.

But now I want our filesystem to be in EMMC. The filesystem provided in SDK is too large for the RAM.

1)As per my understanding, it is required to format the rootfs partition of EMMC as ext4 file system and then write rootfs to it. I have already created 2 partions for EMMC in U-boot. In one partition I have loaded U-boot binaries and the other partition is for rootfs. How do I format the rootfs partition of EMMC?

2)How do we transfer the filesystem to EMMC? We can't transfer it to RAM and then to EMMC as it is too big for RAM. Can we transfer the file system directly from host PC to EMMC over ethernet?

Thanks

Himansu

over 5 years ago

0 Jianzhong Xu over 5 years ago

TI__Guru 62600 points

Hi Himansu,

Please see the attached application note which explains how to boot AM64x from eMMC. It answers both of your questions.Booting_Linux_from_eMMC_AM64x_GPEVM.pdf

Regards,

Jianzhong

0 Himansu Sethi over 5 years ago in reply to Jianzhong Xu

Prodigy 150 points

One thing I forgot to say is I am having a windows host PC not Linux. In the document, it is mentioned that to transfer files by NFS with Linux host PC. Any idea how we can do it with a windows host? I have never used NFS. Currently I am using RAMDISK file system

0 Jianzhong Xu over 5 years ago in reply to Himansu Sethi

TI__Guru 62600 points

Even if you are using RAMDISK file system, there should be enough space for you to copy the compressed root file system: <AM64x Processor-SDK installation folder>/filesystem/ tisdk-default-image-am64xx-evm.tar.xz, which is about 270MB.

0 Himansu Sethi over 5 years ago in reply to Jianzhong Xu

Prodigy 150 points

Ok. I think that's a good idea.

So how do I copy the compressed filesystem to RAMDISK?

+1 Jianzhong Xu over 5 years ago in reply to Himansu Sethi

TI__Guru 62600 points

Have you already downloaded the Processor-SDK? If not, please go to the download page https://www.ti.com/tool/PROCESSOR-SDK-AM64X and download the Windows installer processor_sdk_linux_am64x_07_03_01_006-windows-x64-installer.exe.

After you install it to your Windows PC, you'll find the compressed filesystem at: <Processor-SDK-installation-folder>\filesystem.

Since you are already running Linux with RAMDISK file system on AM64x EVM, you should be able to use WinScp or similar apps to copy file from your Windows host to the EVM.

Regards,

Jianzhong

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PROCESSOR-SDK-AM64X: How to copy filesystem to EMMC