[U-Boot-Users] Problem with Lite5200 DDR configuration

[U-Boot-Users] Problem with Lite5200 DDR configuration

[Prakash]

Hi,

 

We are using u-Boot in Lite5200B with DDR. We compiled the u-Boot with
"icecube_5200_DDR_LOWBOOT_config" option and flashed the image in to
flash at 0xFF800000. 

 

The problem we are facing is, 

 

The image is booting only if we flash the image in both (0xFF800000 and
0xFF000000) places. The reset vector for the two configurations
(icecube_5200_LOWBOOT & icecube_5200_DDR_LOWBOOT) are same. 

 

We have tried by writing different images in these locations and found
that the booted image is the one which is flashed in 0xFF800000. But if
erase the image at 0xFF000000, it is not booting.

 

 

In the README for Icecube is as follows

 

------------------------------------------------------------------------
---

Build target                Flash address | BDI "go" command | Reset
Vector

------------------------------------------------------------------------
---

Lite5200                     0xFFF00000   |    0xFFF00100    |
0xFFF00100

Lite5200_LOWBOOT             0xFF000000   |    0xFF000100    |
0x00000100

Lite5200_LOWBOOT08           0xFF800000   |    0xFF800100    |
0x00000100

icecube_5200                 0xFFF00000   |    0xFFF00100    |
0xFFF00100

icecube_5200_LOWBOOT         0xFF000000   |    0xFF000100    |
0x00000100

icecube_5200_LOWBOOT08       0xFF800000   |    0xFF800100    |
0x00000100

icecube_5200_DDR             0xFFF00000   |    0xFFF00100    |
0xFFF00100

icecube_5200_DDR_LOWBOOT     0xFF800000   |    0xFF800100    |
0x00000100

icecube_5200_DDR_LOWBOOT08   0xFF800000   |    0xFF800100    |
0x00000100

------------------------------------------------------------------------
---

 

Can any one help me to find out the issue?

 

 

Thanks & Regards,

 

P.Prakash

 



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[U-Boot-Users] Problem with Lite5200 DDR configuration

[Txema Lopez]

Prakash Palanisamy, TLS-Chennai wrote:

> Hi,
>
> We are using u-Boot in Lite5200B with DDR. We compiled the u-Boot with 
> ? icecube_5200_DDR_LOWBOOT_config? option and flashed the image in to 
> flash at * 0xFF800000 * .
>
> The problem we are facing is,
>
> The image is *booting* only if we flash the image in *both (0xFF800000 
> and 0xFF000000) places*. The reset vector for the two configurations 
> (icecube_5200_LOWBOOT & icecube_5200_DDR_LOWBOOT) are same.
>
> We have tried by writing different images in these locations and found 
> that the booted image is the one which is flashed in 0xFF800000. But 
> if erase the image at 0xFF000000, it is not booting.
>
The Lite5200B has two banks of 16Mbtes flash, so if you flashed U-Boot 
in the 0xFF800000 you are putting it in the meddle of the flash, nor in 
theLOWBOOT location, nor in the HIGH boot location. When you flash a new 
U-Boot in the 0xFF000000 the system starts from this location but I 
think there is a jump to the U-Boot flashed in the 0xFF800000 because 
your TEXT_BASE ( the address reference for the linker) in U-Boot is 
0xFF800000.
The correct address for the LOWBOOT in the Lite5200B is 0xFF000000.

Best Regards,
Txema.


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