From mboxrd@z Thu Jan  1 00:00:00 1970
From: mikeIngle <findmike62@comcast.net>
Date: Sun, 29 Apr 2007 16:11:21 -0700 (PDT)
Subject: [U-Boot-Users] u-boot for Vertex4-based board.
In-Reply-To: <406A31B117F2734987636D6CCC93EE3CF9D4FB@ehost011-3.exch011.intermedia.net>
References: <406A31B117F2734987636D6CCC93EE3CF9D4FB@ehost011-3.exch011.intermedia.net>
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Leonoid,

I am working on a similar project:
   Avnet Virtex 4 mini-module configured with
      MPMC2 to 64Mb of x16 DDR
      OPB EMC to 4Mb x16 linear flash
      OPB to UARTLITE
      PLB to TEMAC

I also would like uartlite and temac drivers for both u-boot and linux
2.6.xx.
Where did you get to?
I am also considering the GSRD, but right now I just want to get a
bootloader working

My boot sequence (planned)
step 1
Hardware and initial bootloader (executing from BRAM, later from cache ALA
Ultra Controller?) placed in platform flash
Load U-boot to memory, or jump to U-boot in flash?

step 2
Load linux image from either flash or from TFTP server


What is assumed by the existing drivers in terms of interrupts and DMA?

Mike


Leonid-4 wrote:
> 
> Hi:
> 
> I'm porting u-boot on Vertex-4 based board (with PPC405 inside); I'm
> trying use ml403 u-boot as example. I have first stage boot loader,
> taking my u-boot image from serial and loading it to SDRAM, u-boot is
> configured to boot from main memory. 
> 
> Several questions:
> 
> 1) I'm using ELDK 3.1.1 as crosstool; which target should I choose:
> ppc_4xxFP or ppc_4xx?
> 
> 2) My board unlike ML403 has UARTLITE for serial interface. Can I use
> serial_xuartlite.c from microblaze directory?
> 
> Thanks,
> 
> Leonid.
> 
> 
> 
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