LayerscapeのトピックRe: LS1043A - Flashing SD Card

LS1043A - Flashing SD Card

tmorrison — Fri, 27 Mar 2020 19:54:20 GMT

Hi,

Currently I have a script that flashes the SD Card as follows:

   dd if=u.bin of=/dev/mmcblk0 bs=512 seek=8 && sync
   dd if=fsl_fman_ucode_t2080_r1.1_108_4_5.bin of=/dev/mmcblk0 bs=512 seek=1500 && sync
   dd if=iram_Type_A_LS1021a_r1.0.bin of=/dev/mmcblk0 bs=512 seek=1580 && sync

I was having problems when the SPL was loading that part of the data was being corrupted.

Well, I had a thought. What if the U-Boot was extending beyond the 1500 sector where I write

the fsl_fman_ucodexxx.bin?

Well, if I changed these lines to:

dd if=fsl_fman_ucode_t2080_r1.1_108_4_5.bin of=/dev/mmcblk0 bs=512 seek=1800 && sync
dd if=iram_Type_A_LS1021a_r1.0.bin of=/dev/mmcblk0 bs=512 seek=1880 && sync

U-Boot data wasn't being corrupted.

QUESTION:

What module does the loading of the fsl_fma_xxx.bin from sector 1500
What module does the loading of the iram_Type_xxxx.bin from sector 1580

Obviously, I need to modify these locations in software!

Tom

Re: LS1043A - Flashing SD Card

yipingwang — Mon, 30 Mar 2020 04:34:26 GMT

Hello Thomas Morrison,

Please refer to section "4.2 LSDK memory layout and Userland" in LSDK 19.09 user manual which could be downloaded from Layerscape SDK | NXP .

DPAA1 FMAN ucode should be deploy at block no. 0x04800(18432)
QE firmware should be deployed at block no. 0x04A00(18944)

Thanks,

Yiping

Re: LS1043A - Flashing SD Card

tmorrison — Mon, 30 Mar 2020 12:42:08 GMT

Hi Yiping,

I do understand that - I am asking for some guidance if our u-boot is larger than the allocated area.

As indicated from the original post, we were given by NXP a script that wrote these 3 sections:

But, when writing u-boot (dd if=u.bin of=/dev/mmcblk0 bs=512 seek=8 && sync) indicates:

"1621+1 records out"

Unfortunately, the fma code starts being written at sector 1500... thus overwriting our code.

Are you saying that the script we have is wrong?

Thanks in advance.

Tom Morrison

Re: LS1043A - Flashing SD Card

tmorrison — Mon, 30 Mar 2020 22:35:36 GMT

Never mind - I figured it out.

I have many more questions though