[U-Boot-Users] help

Hi all, In the README file of U-boot i saw that the CFG_SDRAM_BASE (physical address ) should be 0x0. But why ? For my board the SDRAM starts from 0x3000 0000.(128MB). Then how can i change. If i change how it will be effected.
Give me some idea on this. Thanks in advance.
Prabha J. Tata Consultancy Services Limited Mailto: prabha.j@tcs.com Website: http://www.tcs.com
Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you

In message OFD6E1F6A0.0014B3BF-ON652570C1.0029083A-652570C1.00299464@tcs.com you wrote:
In the README file of U-boot i saw that the CFG_SDRAM_BASE (physical address ) should be 0x0. But why ?
For PowerPC, correct. Why? Because that's the way U-0Boot and Linux was designed.
For my board the SDRAM starts from 0x3000 0000.(128MB). Then how can i change. If i change how it will be effected.
The mapping is just a setting in your software. Just change your memory controller configuration and map the SDRAM to physical address 0x0000.
Best regards,
Wolfgang Denk
participants (2)
-
prabha.j@tcs.com
-
Wolfgang Denk