tree 31613780498e57e6aa4dbe9da4a8eb0ab8074d8f
parent 18f8d4c60d26e6cd113461c5d716c64897c3f112
author Christophe Leroy <christophe.leroy@c-s.fr> 1521217245 +0100
committer Tom Rini <trini@konsulko.com> 1523046637 -0400

powerpc: mpc8xx: redistribute data in CPM dpram

Some malloc memory is needed at startup for DM model.
Lets reorganise the use of the CPM dpram.

The MPC866/885 dpram, we have 8kbytes dual port RAM, which is usable as:
IMMR + 0x2000..0x2800: BD/Data/Microcode
IMMR + 0x2800..0x2e00: BD/Data
IMMR + 0x2e00..0x3800: BD/Data/Microcode
IMMR + 0x3800..0x3a00: BD/Data
IMMR + 0x3a00..0x3c00: BD/Data/Microcode
IMMR + 0x3c00..0x4000: Parameters for the Peripheral Controllers

Lets reallocate all BDs in the 3800..3a00 area and give the full
2800..2e00 for dynamic RAM allocation including global data

That way, the microcode areas remain available if needed one day.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>