[meta-freescale] Booting u-boot from DDR Through JTAG Debugger

ansaris ansaris at iwavesystems.com
Fri Oct 17 09:09:32 PDT 2014


Hi,

We came to know with System.map file, that the TEXT_BASE & start address 
are below respectively

u-boot-2008.09 (LTIB)
================
0x27800000, 0x27800bc0

u-boot-imx (Yocto)
============
0x17800000, 0x17800000

Please suggest us.


Thank You,
Regards,
Ansari

On Friday 17 October 2014 08:59 PM, Fabio Estevam wrote:
> On Fri, Oct 17, 2014 at 12:26 PM, ansaris <ansaris at iwavesystems.com> wrote:
>> Hi,
>>
>> Sorry for in-convenience.  Please find the details below.
>>
>> We are using our imx6 custom board  for our development with solo (512MB of
>> RAM) processor.
>> In our custom board there is no USB OTG port.  For programming, we are using
>> JTAG debugger.
>>
>> Initially we have used “L3.0.35_4.1.0_130816” (LTIB) release BSP.  We have
>> downloaded the u-boot-2008.09 from the LTIB.
>> With our customization in the source code we have generated u-boot.bin and
>> uboot (elf) binary.
>> Using JTAG we have downloaded the u-boot.bin binary or uboot (elf) into the
>> target's RAM and executed.
>> In this case we are able to boot the target and the bootloader console came
>> in the debug port.
>> 1) memory load tftp://192.168.0.1/u-boot.bin bin 0x27800000
>> 2)set cpsr 0xD3
>> 3) set sp 0x200
>> 4)set pc 0x27800bc0
>> 5)go
>>
>>
>> Currently we are using L3.10.17_1.0.0-GA (Yocto dora) release BSP.  We have
>> downloaded the u-boot-imx (u-boot.2013.14) from the Yocto.
>> With our customization in the source code we have generated u-boot.imx,
>> u-boot.bin binaries.
>> Using JTAG we have downloaded the u-boot.imx binary into the target's RAM
>> and executed.
>> In this case we are not able to boot the target.
>> We have downloaded the u-boot.bin instead of u-boot.imx but the result is
>> same.
>> 1) memory load tftp://192.168.0.1/u-boot.imx bin 0x17800000
>> 2)set cpsr 0xD3
>> 3) set sp 0x200
>> 4)set pc 0x17800000
> Why are the load address different?
>
> By the way, this is a bit off topic in this list.
>

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