On 10/08/2009 09:54 AM, Syed Mohammed, Khasim wrote:
-----Original Message-----
From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
owner@xxxxxxxxxxxxxxx] On Behalf Of Gary Thomas
Sent: Thursday, October 08, 2009 10:17 AM
To: Menon, Nishanth
Cc: Adam Machalek; linux-omap@xxxxxxxxxxxxxxx
Subject: Re: X-loader / U-Boot query
On 10/08/2009 09:14 AM, Menon, Nishanth wrote:
-----Original Message-----
From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-
owner@xxxxxxxxxxxxxxx] On Behalf Of Adam Machalek
Sent: Thursday, October 08, 2009 9:47 AM
To: Gary Thomas
Cc: linux-omap@xxxxxxxxxxxxxxx
Subject: Re: X-loader / U-Boot query
The problem is located in u-boot/cpu/arm_cortexa8/omap3/mem.c
Function do_sdrc_init()
There is an assumption that the RAM size on each CS is maximum of 128M.
See this line:
writel(RASWIDTH_13BITS | CASWIDTH_10BITS | ADDRMUXLEGACY |
RAMSIZE_128 | BANKALLOCATION | B32NOT16 | B32NOT16 |
DEEPPD | DDR_SDRAM,&sdrc_base->cs[cs].mcfg);
This discussion should really be taken to u-boot mailing list. Yes, any
additional patches would be good to have..
Where is that list?? I did ask this question in the original
email...
Sorry, I have not seen all the thread. Are you using x-loader? Then your DDR configuration happens in x-loader and not in u-boot as it skips it. In that case your question should be on x-loader and this is the right list to discuss the same.
If you use u-boot for RAM configuration then you should be on NOR flash.
I'm definitely using x-loader (followed by U-Boot).
Where is this set in X-loader? Is there any guidance for
using the larger DRAM devices?
--
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Gary Thomas | Consulting for the
MLB Associates | Embedded world
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