# sdram control register

- From: Nuguru Susheel \<hidden\>
- Date: 2005-08-10 07:53:04 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2005/08/9400478
- Thread: https://ratatoskr.run/linuxppc-dev/2005/08/9400478/t.md

```text
Hi all,

 Does anyone know how to enable the bit "mode_en" in SDRAM Control
Register (MBAR + 0x0104) ... I have been struggling for that .. 

Just briefly about this register..

writing is not allowed to this register when mode_en bit = '0',

to unlock it we should write mode_en = '1', trying to do this directly
makes the core restart , i think this should be enabled VIA some command
or s0mething.. any help please ...


Thanks for the reply in Advance ..
        nSr
```