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[U-Boot-Users] which config to choose for MPC8347E cpu ?

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Fathi Boudra

2 Apr 2008 2 Apr '08

2:13 p.m.

Hi,

I have a custom board with a MPC8347E and U-Boot doesn't have a config for this cpu. which config is more appropriate to use for my board ? (maybe MPC8349EMDS or sbc8349 or tqm834x ?).

any tips ? TIA.

cheers,

Fathi

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Ben Warren

2 Apr 2 Apr

2:22 p.m.

Hi Fathi,

On Wed, Apr 2, 2008 at 8:13 AM, Fathi Boudra fboudra@gmail.com wrote:

Hi,

I have a custom board with a MPC8347E and U-Boot doesn't have a config for this cpu. which config is more appropriate to use for my board ? (maybe MPC8349EMDS or sbc8349 or tqm834x ?).

any tips ? TIA.

The schematic for the MPC8349EMDS is available on Freescale's web site, and I believe TQS makes their schematics available too. I don't know about the SBC one (Wind River, maybe?). Ultimately, compare schematics to your board and choose the one that's most similar as a starting point. IIRC 8347 is a subset of 8349 (one less PCI bus or something like that) so the 8349 configs should be fine.

regards, Ben

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Marc Leeman

2:53 p.m.

The schematic for the MPC8349EMDS is available on Freescale's web site, and I believe TQS makes their schematics available too. I don't know about the SBC one (Wind River, maybe?). Ultimately, compare schematics to your board and choose the one that's most similar as a starting point. IIRC 8347 is a subset of 8349 (one less PCI bus or something like that) so the 8349 configs should be fine.

Yep,

I started from mpc8349emds and worked further from there. Reminds me to re-submit my board configs again after cleanup.

-- greetz, marc It's not Kansas, and you're way too homely to be Auntie Em, but... Come here, Toto. Crichton - That Old Black Magic chiana 2.6.18-4-ixp4xx #1 Tue Mar 27 18:01:56 BST 2007 GNU/Linux

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Wolfgang Denk

4:42 p.m.

In message f8328f7c0804020522u1c37280la365e03d037a5bd2@mail.gmail.com you wrote:

The schematic for the MPC8349EMDS is available on Freescale's web site, and I believe TQS makes their schematics available too. I don't

TQ only provisdes the schematics for the carrier board, but not for the CPU modules.

Best regards,

Wolfgang Denk

-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de God is real, unless declared integer.

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André Schwarz

2:40 p.m.

Fathi,

there are 3 different MPC834x (3,7 and 9) which all have same silicon. The difference is the package.

The 43 has a small package and the 49 a big one. The 47 is available in both. Package size defines PCI bus (small has 1x 32Bit, large has 64-Bit or 2x 32Bit) and memory bus width.

Which one do you have ?

I'm working with a 43 right now and it works fine. My starting point has been the MPC8349EMDS.

I can share my config if you want to - please let me know.

regards, André Schwarz Matrix Vision

Fathi Boudra schrieb:

Hi,

I have a custom board with a MPC8347E and U-Boot doesn't have a config for this cpu. which config is more appropriate to use for my board ? (maybe MPC8349EMDS or sbc8349 or tqm834x ?).

any tips ? TIA.

cheers,

Fathi

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participants (5)

André Schwarz
Ben Warren
Fathi Boudra
Marc Leeman
Wolfgang Denk