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mpc85xx: support for Freescale COM Express P2020

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This adds support for the Freescale COM Express P2020 board. This board
is similar to the P1_P2_RDB, but has some extra (as well as missing)
peripherals.

Unlike all other mpc85xx boards, it uses a watchdog timeout to reset.
Using the HRESET_REQ register does not work.

This board has no NOR flash, and can only be booted via SD or SPI. This
procedure is documented in Freescale Document Number AN3659 "Booting
from On-Chip ROM (eSDHC or eSPI)." Some alternative documentation is
provided in Freescale Document Number P2020RM "P2020 QorIQ Integrated
Processor Reference Manual" (section 4.5).

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Ira W. Snyder
2011-11-23 08:25:58 -08:00
committed by Kumar Gala
parent 411e150375
commit 9839709ea3
9 changed files with 1099 additions and 0 deletions
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@@ -450,6 +450,10 @@ Jon Smirl <jonsmirl@gmail.com>
pcm030 MPC5200
Ira W. Snyder <iws@ovro.caltech.edu>
P2020COME P2020
Timur Tabi <timur@freescale.com>
MPC8349E-mITX MPC8349