From: Norbert van Bolhuis <nvbolhuis@aimvalley.nl>
To: linuxppc-dev@ozlabs.org, u-boot@lists.denx.de
Subject: NAND only (no NOR)
Date: Tue, 02 Dec 2008 09:55:24 +0100 [thread overview]
Message-ID: <4934F7FC.2030105@aimvalley.nl> (raw)
Nowadays, do many (PowerPC) embedded devices already risk omitting
NOR flash and use a NAND device solely for booting and storing images ?
I'm talking about systems with 10 years life-cycle (so no
MP3-players nor medical systems but somewhere in between).
We have a MPC8313E-RDB and I know booting from NAND is
possible. U-boot seems to support it well, I assume it can read
the kernel, ramdisk and dtb from NAND in memory and bootm this.
However, having no NOR flash means:
- NAND should be programmable via JTAG (BDI3000 doesn't support
this, Lauterbach/trace32 does)
- Critical software images (u-boot, kernel, dtb) stored on
NAND, while there's no NAND 'scrubbing', etc..
Thoughts/comments are welcome.
next reply other threads:[~2008-12-02 8:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-02 8:55 Norbert van Bolhuis [this message]
2008-12-02 9:31 ` [U-Boot] NAND only (no NOR) Alessandro Rubini
2008-12-03 2:50 ` Sean MacLennan
2008-12-03 5:48 ` [U-Boot] " Stefan Roese
2008-12-03 6:38 ` Sean MacLennan
2008-12-03 7:40 ` Trent Piepho
2008-12-03 13:57 ` Leon Woestenberg
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