From: Stefan Roese <stefan.roese@esd-electronics.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Q about automatic dram size detection in sdram_init()
Date: Thu, 15 Jul 2004 10:40:19 +0200 [thread overview]
Message-ID: <001801c46a47$5c2ea6c0$0212000a@PCSTEFAN> (raw)
In-Reply-To: <20040715075508.AAFB5C109F@atlas.denx.de>
Wolfgang!
> > The code works fine on all different memory configutations. This is
> > because of the mirroring of the written values. For example
> on a system
> > with 64MByte SDRAM a write to "ADDR_64MB" will mirror to one of the
> > smaller addresses and the current test will fail! So this
> is perfectly
> > OK.
>
> If you have a 64MB system, I'd expect that a write to ADDR_64MB
> succeeds?
The memory controller is previously setup to 128MB. So a write to 64MB
is OK, and _will_ be mirrored to a lower address on a 64MB system!
I agree that the code is pretty ugly and I am thinking about reworking
it.
Best regards,
Stefan Roese
next prev parent reply other threads:[~2004-07-15 8:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-15 1:00 [U-Boot-Users] Q about automatic dram size detection in sdram_init() "SYLee"
2004-07-15 7:30 ` Stefan Roese
2004-07-15 7:55 ` Wolfgang Denk
2004-07-15 8:40 ` Stefan Roese [this message]
2004-07-15 7:35 ` Wolfgang Denk
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