Hi,
I am working on i.mx6ul based custom board. We want to added support of New DDR MT41K256M16TW on i.MX6ul in a replacement of older DDR3.
Our board is successfully boot from NAND flash configuration and But the U-boot is failed to read/write in NAND flash. Sometimes U-boot is not able to detect the NAND.
We are facing MXS NAND: DMA read error in U-boot
We are successfully able to run NAND with Older DDR3 MT41K256M16HA-125.
We are using latest code branch imx-4.1.15-1.0.0_ga
Can you please help me to find out the root cause of this issue. It is related to DDR3 related configuration? In imx-4.1.15-1.0.0_ga u-boot code, there is already DDR3 configuration available for new DDR MT41K256M16TW.
////////////// Error log
1. Failed to read Kernel and dtb from NAND
U-Boot 2015.04-imx_v2015.04_4.1.15_1.0.0_ga+gd7d7c43 (Jun 13 2016 - 14:55:35)
CPU: Freescale i.MX6UL rev1.0 at 396 MHz
CPU: Temperature 45 C
Reset cause: POR
Board: MX6UL
I2C: ready
DRAM: 512 MiB
Setting up gmpi nand
NAND: 1024 MiB
MMC: Inside FSU_config 0
FSL_SDHC: 0
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: FEC0
Error: FEC0 address not set.
Normal Boot
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x4000000, size 0x800000
MXS NAND: DMA read error
NAND read from offset 4000000 failed -110
0 bytes read: ERROR
NAND read: device 0 offset 0x5000000, size 0x100000
MXS NAND: DMA read error
NAND read from offset 5000000 failed -110
0 bytes read: ERROR
2. Failed to read Kernel but able to read dtb
U-Boot 2015.04-imx_v2015.04_4.1.15_1.0.0_ga+gd7d7c43 (Jun 13 2016 - 14:55:35)
CPU: Freescale i.MX6UL rev1.0 at 396 MHz
CPU: Temperature 43 C
Reset cause: POR
Board: MX6UL
I2C: ready
DRAM: 512 MiB
Setting up gmpi nand
NAND: 1024 MiB
MMC: Inside FSU_config 0
FSL_SDHC: 0
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Net: FEC0
Error: FEC0 address not set.
Normal Boot
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x4000000, size 0x800000
8388608 bytes read: OK
NAND read: device 0 offset 0x5000000, size 0x100000
1048576 bytes read: OK
Kernel image @ 0x80800000 [ 0x000000 - 0x51f3e0 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300a8bb
Modify /soc/aips-bus@02000000/bee@02044000:status disabled
ft_system_setup for mx6
switch to ldo_bypass mode!
Starting kernel ...
//////////////////////////////////////////////// End of log
-
Thanks,
Dhvanil Patel
