Linux/TDA2SX: Need support for booting from NAND

Sankar Salla

Intellectual 750 points

Part Number: TDA2SX

Tool/software: Linux

Hi All,

We are working on TAD2Sx processor.

TDA2Sx EVM board is booted from SD CARD.

Our requirement is board boot from NAND.

Can you please provide the flashing procedure for boot from NAND.

Thanks in advance..

Regards,

Sankar.

over 6 years ago

0 Rishabh Garg over 6 years ago

TI__Guru 55685 points

Hi Sankar,

Please see this link for flashing to NAND:
processors.wiki.ti.com/.../Linux_Core_U-Boot_User's_Guide

Regards,
Yordan

0 Rishabh Garg over 6 years ago in reply to Rishabh Garg

TI__Guru 55685 points

Hi,

I haven't heard back from you, I'm assuming you were able to resolve your issue.
If not, just post a reply below (or create a new thread if the thread has locked due to time-out).

Regards,
Rishabh

0 Sankar Salla over 6 years ago in reply to Rishabh Garg

Intellectual 750 points

Hi,

Sorry for the late reply.

We are following the link.

In bootloader we are given "mtdparts",but it says like below.

=> mtdparts
Unknown command 'mtdparts' - try 'help'

I think uboot dont't having nand partitions.

Note:We are using TDA2SX EVM.

Can you please help us to solve this issue.

Regards,

Sankar.

0 Sankar Salla over 6 years ago in reply to Sankar Salla

Intellectual 750 points

HI Rishabh,

Thanks for the reply.

We are using VISION_SDK_03_04 source(TDA2xx).

Nand support is not enabled in default u-boot source.

We enabled Nand support in below paths.

We added #define CONFIG_NAND 1 in include/configs/dra7xx_evm.h

and modify #define CONFIG_CMD_NAND to #define CONFIG_CMD_NAND 1 in include/configs/ti_armv7_omap.h .

After compiled and flash new images to EVM.

We got mtdparts in u-boot.

But in u-boot it shows below logs.

NAND: 0 MiB

And kernel log it shows "[ 1.788753] nand: No NAND device found" and "[ 2.010108] evm_3v3_sw: supplied by sysen1"No NAND device found".

Please help us to solve this issue.

For your reference,please find the attachment.

Thanks & Regards,

Sankar.

0 Shravan Karthik over 6 years ago in reply to Sankar Salla

TI__Genius 14650 points

Hi Sankar,

The TDA2X EVM doesn't have a NAND device. There is only QSPI NOR Flash present. The error is because there is no NAND device recognized.
TDA2ex_17x17 EVM (DRA71x) has NAND flash in the EVM.

Regards
Shravan

0 Sankar Salla over 6 years ago in reply to Shravan Karthik

Intellectual 750 points

sprr212.pdf CPU_Schematic.pdfHi Shravan,

Thanks for reply.

Please find the attached schematic and layout.

In schematic U6 NAND IC present in out EVM.

Could you please confirm,whether we are referring correct schematic and Source code?

Regards,

Sankar.

0 Sankar Salla over 6 years ago in reply to Sankar Salla

Intellectual 750 points

Hi Shravan,

We are waiting for your valuable inputs.

Regards,

Sankar.

0 Shravan Karthik over 6 years ago in reply to Sankar Salla

TI__Genius 14650 points

Hi Sankar,

While the schematic does mention where NAND can be interfaced to the EVM, the TDA2X board itself doesn't have NAND flash available (Even REV-H).
Unless you are using a custom board with TDA2X SoC, NAND isn't available.

Regards
Shravan

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Linux/TDA2SX: Need support for booting from NAND