Hi all,
I understand that uboot works in 2 stages, one before RAM is initialized and the other after RAM is initialized.
But my requirement is, I would like to load the First stage of uboot into Flash, then get the second stage of the boot loader thro' a fast Ethernet(This means that I require a Ethernet driver to run from Flash). In addition I would also like to start a Flash File system in first stage itself. Here's a summary
Uboot -- I stage [Running from Flash] CPU setup. Ethernet driver, support for TFTP. Flash driver. Flash file system.
Uboot - IIstage [Running from RAM] Other board initializations Device initializations CLI and booting the kernel image.
Would like to know whether the above split up of Uboot is feasible? Thanks for all your time. CPU will be mostly powerquicc II processor and the board is a customized board.
Regards, C.R.Srivatsan
-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net] On Behalf Of u-boot-users-request@lists.sourceforge.net Sent: Friday, November 05, 2004 10:35 AM To: u-boot-users@lists.sourceforge.net Subject: U-Boot-Users digest, Vol 1 #1079 - 2 msgs
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Today's Topics:
1. Re: Timeout by U-Boot while writing to flash (Paul Ruhland) 2. Re: HW Addr different to Vendor information (Paul Ruhland)
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Message: 1 From: Paul Ruhland pruhland@rochester.rr.com Organization: OpenPore To: lugs@eternitytechnologies.com Subject: Re: [U-Boot-Users] Timeout by U-Boot while writing to flash Date: Thu, 4 Nov 2004 23:39:09 -0500 Cc: u-boot-users@lists.sourceforge.net
On Thursday 04 November 2004 20:56, Devraj Mukherjee wrote:
Hi everyone,
We finally got U-Boot up and running on our board. Many thanks to everyone who replied to our emails. We are having trouble writing the initial environment variables to the system.
This sounds like it may be a problem with the newer board revisions vs. the current cvs. There were changes to the cpld and the I/O buffers which set the buffers in the wrong direction by default at boot. You have to either enable pcmcia (both) or set a couple gpio lines.
To check your cpld revision enter the following:
LPD7A400> md.b 0x71400000 1
The only info I have is from the boards I've been able to get. A cpld revision >= 0x34 has the buffer change. I've seen lower version numbers
mentined as have this change also but cannot confirm.
To set the gpio pins enter the following:
LPD7A400> mw 0x80000e3c 0x00000000 1 LPD7A400> mw 0x80000e38 0x00000005 1
The first command ensures portg pins are outputs (default). The second command sets the necessary pins to set the buffers in the proper direction.
I was holding off the patch for this till I got reliable info about the the card engine revision vs. the buffer direction change. I haven't gotten any response yet.
-- Paul Ruhland
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Message: 2 From: Paul Ruhland pruhland@rochester.rr.com Organization: OpenPore To: lugs@eternitytechnologies.com Subject: Re: [U-Boot-Users] HW Addr different to Vendor information Date: Thu, 4 Nov 2004 23:51:58 -0500 Cc: u-boot-users@lists.sourceforge.net
On Thursday 04 November 2004 23:14, Devraj Mukherjee wrote:
Hi everyone,
We are tring to get the ethernet working on our board. Here is what we have been trying. Our DHCP server gives addresses in the range of
10.0.1.x
Our vendor has documented that our MAC address is 00:08:EE:00:41:60
and
LogicLoader (the default bootloader) would get an IP with this MAC address. It's interesting to see that U-Boot with the patches thinks that the HW Addr is 04:04:04:33:04:04
Any ideas, experiences?
I believe this is related to the new card version problem I mentioned in
previous post.
Let me know what version you have and if the workaround I posted fixes these problems for you.
I won't have access to my board till tomorrow. I can post a patch then if this is the problem your having.
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