[T4240RDB] : Unable to boot from SD Card

[Venkat_Vellanki]

Hi,

We are trying to Boot from SD card for  #T4240RDB# , using u-boot version : 2016.09+fslgit-

With the reference of  QORIQ-SDK-2.0-IC-REV0.pdf (1927 page) ,generated u-boot-spl.bi

u-boot.bin, u-boot-with-spl-pbl.bin ,u-boot-spl.bin : generated from 2016.09+fslgit-r0

PBL.bin : generated from codewarrior tool by importing rcw from the given path 

/QoriQ_SDK2.0/yacto/QorIQ-SDK-V2.0-20160527-yocto/build_t4240rdb/tmp/work/t4240rdb-fsl-linux/rcw/git-r0/git/t4240rdb/SSFFPPH_27_55_1_9

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Case 1 :

Loaded u-boot-with-spl-pbl.bin 

Commands used to build T4240RDB SD card u-boot

source <path>
make T4240RDB_SDCARD_defconfig
make

Loaded the images into SD card using the below commands

tftp 1000000 u-boot-with-spl-pbl.bin
mmc write 1000000 8 658

#block_number_uboot_with_spl_pbl = hex(((831216 - 1) /512) +1) == 658

Image didn't get booted after changing switch configuration to boot from SD card.

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Case 2:

Loaded PBL.bin & u-boot.bin has been generated from CodeWarrior .

Steps followed to generate pbl from code warrior

Boot Configuration->PBI_src=0b0110 - SD/MMC 

Boot Configuration->BOOT_LOC = 0b10000 -Memory Complex 1

Appended the following commands PBI commands 

#Initialize CPC1

09010000 00200400

09138000 00000000

091380c0 00000100

#512KB SRAM

09010100 00000000

09010104 fff80009

09010f00 08000000

#enable CPC1

09010000 80000000

#Configure LAW for CPC1

09000d00 00000000

09000d04 fff80000

09000d08 81000012

#Initialize eSPI controller

09110000 80000403

09110020 2d170008

09110024 00100008

09110028 00100008

0911002c 00100008

#Configure alternate space

09000010 00000000

09000014 ff000000

09000018 81000000

#Flush PBL data

09138000 00000000

091380c0 00000000

Selected  ACS File (data from binary file) 

offset : fd8000

loaded uboot-spl .bin

Flush

Wait

If I'm not wrong , only eSPI and SRAM are getting initialized  in the above commands.

Dumped the images into board with following commands.

tftp 100000 PBL.bin

mmcinfo

mmc write 100000 8 block_number 

mmc read 100000 8 361 

md 100000

#block_number_pbl = hex(((184608 - 1) /512) +1) == 361

tftp 100000 u-boot.bin

mmc write 100000 208 block_number

mmc read 200000 208 1112

md 200000

#block_number_uboot = hex(((569072 - 1) /512) +1) == 1112

I'm  able to read and write from mmc in both cases but still couldn't boot from SD card after configuring SW3[4-1] ON and SW2[1] OFF on T4240 EVM board

My questions are :

1. In the reference document there is no initialization for SD card ?

2. Is there any requirement of partition in Linux ?

3. Where the u-boot-spl.bin's offset will be stored ?

4. Found few u-boot versions doesn't support SD card booting. Can u please provide us the SD card booting supporting u-boot version info ?

Pls do let me know how can I proceed further to boot from SD card.

Thanks and Regards,
Venkat

[Venkat_Vellanki]

Hi NXP team,

Please let us know if there is any solution regarding this .

Thanks ,

Venkat Vellanki.