AM4378: Software SD Card or eMMC

Hiroyasu Tazawa1

Part Number: AM4378
Other Parts Discussed in Thread: TPS65218

Hi,

Let me talk about MMC port of AM437x.

MMC port support connection between MMC port and SD Card or eMMC.
We understand AM437x can use same software for SD Card and eMMC.
Is it correct ? ?

Because Compiling MLO and u-boot of this wikipage mention that
some configuration support SD Card Boot but not support eMMC Boot

http://processors.wiki.ti.com/index.php/Linux_Core_U-Boot_User%27s_Guide

For example, AM437x EVM-Sk can support SD Boot but not supprt eMMC Boot using am43xx_evm_defconfig.
Why Configuration for SD Boot is not used eMMC Boot ?

Best Regards
Hiroyasu

over 8 years ago

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Hi,

For example, AM437x EVM-Sk can support SD Boot but not supprt eMMC Boot using am43xx_evm_defconfig.
Why Configuration for SD Boot is not used eMMC Boot ?

According to the product folder (), this device does not have eMMC:
Features
Hardware Software Connectivity
AM4378 ARM Cortex-A9 Processor Linux Gigabit Ethernet (2)
1GB DDR3L Micro SD Card (1)
TPS65218 Power management IC USB2.0 Dual Role/Host (1/1)
4.3" capacitive touch screen LCD Audio in/out
On board camera module
64 MB QSPI-NOR flash
Connector for Wilink8

Best Regards,
Yordan

0 Hiroyasu Tazawa1 over 8 years ago in reply to Yordan Kovachev

Guru 12350 points

Hi, Yordan

O.K. Thank you !

Actually my customer want to use software of eMMC Boot using same as SD Card.
Is it possible ?

Best Regards
Hiroyasu

0 Yordan Kovachev over 8 years ago in reply to Hiroyasu Tazawa1

TI__Guru**** 161600 points

Not sure if I understand correctly.

If they want to boot their device from eMMC by using the MLO & u-boot build with am43xx_evm_config, then yes, this should be possible as long as the device actually has an eMMC to boot from.

Best Regards,
Yordan

0 Hiroyasu Tazawa1 over 8 years ago in reply to Yordan Kovachev

Guru 12350 points

Hi, Yordan

Thank you for your reply.
I got it.

Best Regards
Hiroyasu

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AM4378: Software SD Card or eMMC