From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from fk-out-0910.google.com (fk-out-0910.google.com [209.85.128.189]) by ozlabs.org (Postfix) with ESMTP id 9ECA4DDDFA for ; Fri, 14 Sep 2007 00:05:13 +1000 (EST) Received: by fk-out-0910.google.com with SMTP id z22so589596fkz for ; Thu, 13 Sep 2007 07:05:12 -0700 (PDT) Message-ID: Date: Thu, 13 Sep 2007 16:05:11 +0200 From: "fabien boucher" To: linuxppc-embedded@ozlabs.org Subject: Informations about mem and proc environment between bootloader and kernel MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_20268_9656084.1189692311721" List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , ------=_Part_20268_9656084.1189692311721 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline And I need some help for my project (I'm in internship) to port linux on a custom board. This board has been developped by the company where i'm doing the intership and it's based on a MPC875 with RAM and Flash chips and several other devices. Currently the board run with a BSP developped by the company's developpers, the BSP launch Psos. This BSP is able to decompress an image and load it in RAM. I plan to use U-boot to be more able to boot a kernel but as it's not a common board so it's not initialy supported by U-boot. So I have two choices first use the BSP with some changes to adapt it for loading the Linux kernel or using U-boot. I'm looking for informations about the memory and processor environment needed by linux to boot properly for evaluate whether the use of a customize BSP is the easiest way against the port of a new board under U-boot. So if someone know where i can found those informations concerning the step between where the boot program have control of the cpu and where Linux take control. Thank you, Fabien ------=_Part_20268_9656084.1189692311721 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline And I need some help for my project (I'm in internship) to port linux on a custom board.
This board has been developped by the company where i'm doing the intership and it's
based on a MPC875 with RAM and Flash chips and several other devices.
Currently the board run with a BSP developped
by the company's developpers, the BSP launch Psos.
This BSP is able to decompress an image and load it in RAM.
I plan to use U-boot to be more able to boot a kernel but as it's not a common
board so it's not initialy supported by U-boot. So I have two choices first
use the BSP with some changes to adapt it for loading the Linux kernel or using U-boot.
I'm looking for informations about the memory and processor environment needed by linux to
boot properly for evaluate whether the use of a customize BSP is the easiest way against
the port of a new board under U-boot. So if someone know where i can found those informations
concerning the step between where the boot program have control of the cpu and where Linux
take control.

Thank you,
Fabien

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