EMAC Boot on AM3352

Hi,

Please check this wiki: http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User's_Guide#CPSW_Ethernet_2

Hi Biser,

Thank You for the quick reply.

Is there any ready to use source package / binaries / tools to quickly check this on AM335X EVM / Beagle Bone Black?

If you have a URL share with me, I will download and let you know the result.

FYI: I am working on Windows CE side. If ready to use Windows CE example is not available, share a linux version link.

Regards,

GSR

Hi GSR,

AM335X WinCE BSP is a third-party product, developed by Adeneo Embedded (http://www.adeneo-embedded.com/ ). It's not supported by TI. For Linux there is the EZSDK, which includes pre-built binaries. Link is http://software-dl.ti.com/sitara_linux/esd/AM335xSDK/latest/index_FDS.html

Hi Biser,

Thank you for reply.

I am trying to use the Linux binaries and EMAC booting on AM335X EVM.

I had downloaded the following binaries from TI: AM335x SDK prebuilt BSP binaries and root filesystem

After extracting the content it shows the below tree structure

├───filesystem
│       arago-base-tisdk-image-am335x-evm.tar.gz
│       arago-base-tisdk-image-am335x-evm.ubi
│       tisdk-rootfs-image-am335x-evm.tar.gz
│       tisdk-rootfs-image-am335x-evm.ubi
│
└───prebuilt-images
        am335x-bone.dtb
        am335x-boneblack.dtb
        am335x-evm.dtb
        am335x-evmsk.dtb
        MLO-am335x-evm
        README
        u-boot-am335x-evm.img
        u-boot-spl.bin-am335x-evm
        zImage-am335x-evm.bin

I also see the following wiki:http://processors.wiki.ti.com/index.php/AMSDK_u-boot_User's_Guide#Booting_U-Boot_from_the_network

1. From the wiki page it looks booting over EMAC has been tested from a Linux machine. Is there any procedure which describes how to test from a Windows Machine?
2. I see that the primary loader (MLO-am335x-evm) is 106 KB. But what I know is AM3352 has only 64 KB SRAM. Is this the first file being downloaded by RBL over EMAC?

let me know your thoughts.

Regards,

GSR

Hi GSR,

1258021 said:

From the wiki page it looks booting over EMAC has been tested from a Linux machine. Is there any procedure which describes how to test from a Windows Machine?

I'm not aware of a Windows PC procedure for EMAC boot. There is a Windows tool called Uniflash, but that's used for flashing onboard memory(http://processors.wiki.ti.com/index.php/Sitara_Uniflash_Quick_Start_Guide).

1258021 said:

I see that the primary loader (MLO-am335x-evm) is 106 KB. But what I know is AM3352 has only 64 KB SRAM. Is this the first file being downloaded by RBL over EMAC?

Yes, this is the first file. There are additional 64kB inside the Cortex-A8 MPU, besides the 64kB OCMC-RAM.