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Re: Adder II (MPC852T), issue while migrating to 32MB memory

From: Gary Thomas <gary at mlbassoc dot com>
To: ajmas at bigfoot dot com
Cc: ecos-discuss at ecos dot sourceware dot org
Date: Wed, 12 Jul 2006 15:02:27 -0600
Subject: Re: [ECOS] Adder II (MPC852T), issue while migrating to 32MB memory
References: <20060712194059.IVAK1747.tomts25-srv.bellnexxia.net@smtp1.sympatico.ca>

Andre-John Mas wrote:

Hi,

We have an Adder II (MPC852T) board and are in the process of upgrading from 16MB memory to 32MB memory, using a single chip.

Running our 16MB aware RedBoot on this new setup we had no issues. Now we modified the files in:

\packages\hal\powerpc\adder\v2_0_51\include\pkgconf\

such that values 'CYGMEM_REGION_ram_SIZE' (in .h files) and 'MEMORY/ram' (in .ldi files) now have the value 0x1800000. In adder.S the 'onboard DRAM' section is:
        /* ONBOARD DRAM */
        lwi     r3,0x00000081   # 32-bit, UPMA
        lwi     r5,0xFF000E00

                     -should be-
                     0xFE000E00

You need to change this - it adjusts the size of CS1 (the DRAM)

--
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

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References:
- Adder II (MPC852T), issue while migrating to 32MB memory
  - From: Andre-John Mas

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