AM335x EVM NAND Booting problem

NAVEEN RUNJALA

Other Parts Discussed in Thread: TMDXEVM3358

Hi,

when i try to boot the EVM board from NAND i'm getting the below characters...............what is the point that i have missed

��

over 9 years ago

0 Pavel Botev over 9 years ago

TI__Guru**** 170625 points

Hi Naveen,

Is that all you have when trying to boot from NAND?

If you try booting from SD card, will your board boot up fine?

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

yes exactly when i trying to boot from sd card it is working fine but when i try to boot from nand it showing that characters......

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

What switch boot settings you are using for NAND boot? I mean you should change the boot mode from SD to NAND.

Do you write/flash your NAND chip? With pre-built images or you build your own images? Which version of the AM335x SDK you are using?

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

yes i changed the boot switch.............i have written pre-built images and i'm using sdk-02.00.00.00.

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Are you using AM335x GP EVM (TMDXEVM3358)? Note that only AM335x GP EVM has NAND. AM335x StarterKit (SK) EVM (TMDSSK3358) does not have NAND.

Which pre-built images exactly you are writing in NAND? Do you keep the default names of these images or change the name of these files?

Which profile you are using? Note also that if you are using profile#2 or profile#3 you will not able to use NAND.

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

i'm using profile '0' and my board is am335x GP EVM..............

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Which pre-built images exactly you are writing in NAND? Do you keep the default names of these images or change the name of these files?

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

no...i'm cross compiling after that i'm using those

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

I am not sure I understand. What exactly you cross compile? And what exactly you are using after cross compile?

The pre-built images that should be written in NAND are:

{SDK}/board-support/prebuilt-images
1. MLO-am335x-evm
2. u-boot-am335x-evm.img

If you do not want to use the pre-built images, you can create your own from the u-boot source:
{SDK}/board-support/u-boot

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

that is what i'm telling i created the u-boot and MLO images

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

NAVEEN RUNJALA said:
.i have written pre-built images

But you previously stated that you are using pre-built images????

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

sorry i was confused.......i'm not used prebuilt images..

0 NAVEEN RUNJALA over 9 years ago in reply to NAVEEN RUNJALA

Expert 1220 points

i'm doing in this way..
U-Boot # mmc rescan
U-Boot # nand erase.chip
U-Boot # load mmc 0 0x81000000 MLO
U-Boot # nand write 0x81000000 NAND.SPL
U-Boot # nand write 0x81000000 NAND.SPL.backup1
U-Boot # nand write 0x81000000 NAND.SPL.backup2
U-Boot # nand write 0x81000000 NAND.SPL.backup3
U-Boot # load mmc 0 0x81000000 u-boot.img
U-Boot # nand write 0x81000000 NAND.u-boot
U-Boot # load mmc 0 0x81000000 zImage
U-Boot # nand write 0x81000000 NAND.kernel
U-Boot # run findfdt
U-Boot # load mmc 0 0x81000000 $fdtfile
U-Boot # nand write 0x81000000 NAND.u-boot-spl-os
U-Boot # saveenv

0 NAVEEN RUNJALA over 9 years ago in reply to NAVEEN RUNJALA

Expert 1220 points

but when i check the mtd like "cat /proc/mtd"

root@am335x-evm:~# cat /proc/mtd
dev: size erasesize name
root@am335x-evm:~#

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

NAVEEN RUNJALA said:
sorry i was confused.......i'm not used prebuilt images..

Have you made any changes in the u-boot code base?

Can you provide the exact commands you are using to build MLO and u-boot.img?

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- am335x_evm_nandboot_config

make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-

i used these two commands to build MLO and u-boot

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Neveen,

You should use Linaro GCC arm-linux-gnueabihf- (not arm-linux-gnueabi-), see the below wiki pages:

processors.wiki.ti.com/.../Linux_Core_U-Boot_User's_Guide
processors.wiki.ti.com/.../AM335x_U-Boot_User's_Guide

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear Pavel,

i did what u said exactly i compiled images using Linaro(arm-linux-gnueabihf-)....but no use same error i'm getting out from uart.............

��

here what i observed is the NAND not taking anything like when i check the "cat /proc/mtd" it showing nothing........and that to while the time of NAND erase it showing some bad-block error like below.....

NAND erase.chip: device 0 whole chip
Skipping bad block at 0x00c80000
Skipping bad block at 0x00ca0000
Erasing at 0xffe0000 -- 100% complete.
OK

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Have you made any changes in the u-boot code base?

Can you try to flash the pre-built MLO and u-boot.img? Is there any difference? The pre-built MLO and u-boot.img are available in the below path:

{SDK}/board-support/prebuilt-images

MLO-am335x-evm - rename to MLO and write/flash in NAND

u-boot-am335x-evm.img - rename to u-boot.img and write/flash in NAND

NAVEEN RUNJALA said:
NAND erase.chip: device 0 whole chip
Skipping bad block at 0x00c80000
Skipping bad block at 0x00ca0000
Erasing at 0xffe0000 -- 100% complete.
OK

Having two bad blocks in NAND is not an issue. NAND erase operation is finally successful.

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear Pavel,

no nothing i modified in u-boot code...... and also i tried using pre-built images even though same error i'm getting.........and also i have one doubt before that should i create a files system in NAND or not...

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

To be able to boot MLO/u-boot from NAND, you do not need to flash/write root filesystem in NAND. You can do this in later stage. As a first step, try to write/flash only MLO/u-boot to NAND and try to boot the board from NAND.

Can you provide the full console log from the write/flash process of the MLO/u-boot to NAND? You are writing/flashing these from the SD u-boot, right?

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

yes........ this is my log file

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

From the log it seems to me you are using your own MLO/u-boot.img, you do not use the pre-built, is that correct? If yes, with which config target file you build this MLO/u-boot.img (am335x_evm_nandboot_config, am335x_evm_config, other)? Can you also provide me full console log about the build process of the MLO/u-boot.img?

Also I see you never go out from the SD u-boot prompt. How exactly you switch from SD boot to NAND boot? Can you try with go out of the SD u-boot prompt (after saveenv command), power off the board, configure the boot switches from SD to NAND, then start new minicom session, and power on the board.

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear Pavel,

i'm using ma335x_evm_nandboot_config for creating MLO and U-Boot images.

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

NAVEEN RUNJALA said:
i'm using sdk-02.00.00.00.

You stated previously that you are using ti-processor-sdk-linux-am335x-evm-02.00.00.00, but in the log you have provided I see you are using ti-sdk-am335x-evm-08.00.00.00.

Do you know which version of the SDK you are really using?

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

yes yes i'm using both this time i used sdk 08.00.00.00. i tried with both sdks

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

I think you are making a terrible mix between both SDKs. Can you please state to which version of the SDK you prefer to use (I would recommend you the latest ti-processor-sdk-linux-am335x-evm-02.00.01.07) so we can debug further? I need to know your final decision as there are differences between the different SDKs versions.

Regards,
Pavel

0 Pavel Botev over 9 years ago in reply to Pavel Botev

TI__Guru**** 170625 points

For SDK8, you should build u-boot with "am335x_evm"

For processor SDK 2 and/or 2.0.1.7, you should build u-boot with "am335x_evm_config", "am335x_evm_nandboot_config"

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear pavel,
i tried with both SDK's(08.00.00.00. and 02.00.00.00) but it is showing same error....

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Can you provide me full console log for:

1. Building MLO/u-boot.img from SDK 2.00.00.00
2. Flashing/Writing MLO/u-boot.img from SDK 2.00.00.00 to NAND

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

We strongly recommend the use of separate object directories when building. This is done with O= parameter to make. Can you try to build your MLO/u-boot.img with the below commands:

u-boot-2015.07$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean
u-boot-2015.07$ rm -rf ./am335x_evm
u-boot-2015.07$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_evm am335x_evm_nandboot_config all

Please provide me full console log after executing three commands. You can copy from console, paste in txt file and attach that txt file here in the forum.

Provide me also the output of the below command:

u-boot-2015.07$ echo $PATH

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

2705.log.txt 1134.path.txt

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Regarding path.txt, I see you have not set the PATH environment. Please set it.

u-boot-2015.07$ export PATH=<your path to SDK2>/ti-processor-sdk-linux-am335x-evm-02.00.00.00/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/:$PATH

In log.txt, I do not see the three commands below:

u-boot-2015.07$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean
u-boot-2015.07$ rm -rf ./am335x_evm
u-boot-2015.07$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_evm am335x_evm_nandboot_config all

So let me ask another more time:

Can you try to build your MLO/u-boot.img with the below commands:

u-boot-2015.07$ echo $PATH
u-boot-2015.07$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean
u-boot-2015.07$ rm -rf ./am335x_evm
u-boot-2015.07$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- O=am335x_evm am335x_evm_nandboot_config all

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

8585.log.txt

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

So far, so good. Now take MLO and u-boot.img file from the u-boot-2015.07/am335x_evm/ folder, place these two files in the SD card, boot from SD card, flash the NAND from the SD u-boot prompt, power off the board, change the boot switch from SD to NAND, start new minicom session and power on the board.

Provide me full console log about the boot and flash process.

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear Pavel,

same way i did but i'm getting the below error..........

Welcome to minicom 2.7

OPTIONS: I18n
Compiled on Jan 1 2014, 17:13:19.
Port /dev/ttyS0, 16:11:32

Press CTRL-A Z for help on special keys

U-Boot SPL 2015.07-00115-g9ad9fc5 (Apr 04 2016 - 15:16:47)
reading args
spl_load_image_fat_os: error reading image args, err - -1
reading u-boot.img
reading u-boot.img
Invalid FAT entry

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Is that a new issue? I do not think this is related to NAND, but to SD card. Your SD card seems to be corrupted.

You can try the below things to overcome:

1. Run again the script create-sdcard.sh and point to the new MLO/u-boot.img

2. Use another SD card

3. Boot from ethernet and flash the NAND with TFTP

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear Pavel,

i formatted the SD card and created the new partitions both BOOT and ROOTFS so i copied that MLO and U-Boot files into boot directory here the board is booting perfectly when configure the boot switch as SD card but coming to NANd boot again i'm facing the same issue.....

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Provide me full console log about the boot and flash process.

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Can you provide me sysboot[15:0] value for SD boot and for NAND boot?

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

01001000----------NAND Boot

11101000-----------SD Boot

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

NAVEEN RUNJALA said:
01001000----------NAND Boot

Does this mean that you have on the AM335x GP EVM SW3 DIP switch 1:5 = 01001 (OFF ON OFF OFF ON)?

Note that in AM335x GP EVM ON is labeled on the wrong side of SW3 boot mode switch.

So can you try with SW3 DIP switch 1:5 = 10110 (ON OFF ON ON OFF). See the below wiki page for a picture of how your SW3 DIP switch should look like for NAND boot:

http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User's_Guide#Boot_Switch_Settings

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Pavel,

i have already read that page same in that way i configured.........

0-------------- switch position up

1--------------switch position down

0--------------switch position up

1--------------switch position down

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

You have provided the settings for AM335x GP EVM SW3 DIP switch [1:8]: 01001000 - seems ok

Can you also provide me settings for:

AM335x GP EVM SW4 DIP switch [1:8]
AM335x GP daughter board 4bit DIP switch [1:4]

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

all switches are "ON" Position..............(SW4)..........(All are downwards position)

0 Pavel Botev over 9 years ago in reply to NAVEEN RUNJALA

TI__Guru**** 170625 points

Naveen,

Please provide me also AM335x GP daughter board SW8 4bit DIP switch [1:4] settings.

In SW4, can you change the positions of the switches as shown in the wiki picture: [1:8] = UP UP UP UP UP UP DOWN UP

processors.wiki.ti.com/.../AM335x_U-Boot_User's_Guide

Can you also boot from SD card and read the CONTROL_STATUS register value (at address 0x44E10040), from the u-boot prompt, with "md" command and provide me the value there.

Regards,
Pavel

0 NAVEEN RUNJALA over 9 years ago in reply to Pavel Botev

Expert 1220 points

Dear Pavel,
thanq so much finally i got that board is booting from nand..........the problem is in SW4.....i configured that as in your shared link.

0 NAVEEN RUNJALA over 9 years ago in reply to NAVEEN RUNJALA

Expert 1220 points

and also can you help me that how to create a file system in nand........

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AM335x EVM NAND Booting problem