From: Kevin Fry <kevin@carts.com>
To: Craig MacDonald <macdonldc@netscape.net>,
linuxppc-embedded@lists.linuxppc.org
Subject: Re: Problem booting linux-2.4.4-2001-07-23 on EST SBC8260 with ppcboot 1.0.4
Date: Fri, 21 Sep 2001 15:45:23 -0700 [thread overview]
Message-ID: <3BABC303.1674D66E@carts.com> (raw)
In-Reply-To: 3A1B61D1.1F74491E.031B03A1@netscape.net
You should have ppcboot remap the IMMR to 0xF0000000 in the start of ppcboot
code. Otherwise it will interfere with Linux memory mapping. See this file for
all the info you need.
http://www.linuxhq.com/kernel/v2.4/doc/powerpc/SBC8260_memory_mapping.txt.html
gl!
Kevin Fry
Craig MacDonald wrote:
> I am trying to get linux 2.4 running on an EST SBC8260.
> It seems others have this board working correctly, so
> I must be doing something wrong.
> It works up to executing the rfi in turn_on_mmu, but
> it doesn't seem to reach start_here.
>
> I have modified linux to use the correct bd_info structure
> in ppcboot.h and the immr_base value. Below is some information
> from ppcboot.
>
> PPCBoot 1.0.4 (Aug 12 2001 - 07:16:41)
>
> MPC8260 Reset Status: External Soft
>
> MPC8260 Clock Configuration
> - Bus-to-Core Mult 4x, VCO Div 2, 60x Bus Freq 25-75 , Core Freq 100-300
> - dfbrg 0, corecnf 0x0a, busdf 3, cpmdf 1, plldf 0, pllmf 1
> - vco_out 132000000, cpm_clk 66000000, bus_clk 33000000
> - scc_clk 33000000, brg_clk 33000000, cpu_clk 132000000
>
> CPU: MPC8260 (Rev 01, Mask A.1 1K22A-XC) at 132 MHz
> Board: EST SBC8260
> DRAM: 32 MB
> FLASH: 4 MB
> BEDBUG Ready
> In: serial
> Out: serial
> Err: serial
>
> bdinfo
> ------------------------
> memstart = 0x00000000
> memsize = 0x02000000
> flashstart = 0xfff00000
> flashsize = 0x00400000
> flashoffset = 0x00040000
> sramstart = 0x00000000
> sramsize = 0x00000000
> immr_base = 0x0f000000
> bootflags = 0x00000001
> intfreq = 132 MHz
> busfreq = 33 MHz
> ethaddr = 00:02:6A:00:00:55
> IP addr = 10.0.0.62
> baudrate = 19200 bps
> getc = 0x01fd0ec8
> tstc = 0x01fd0ef8
> putc = 0x01fd0e18
> puts = 0x01fd0e84
> printf = 0x01fcd57c
> install_hdlr= 0x01fd1a74
> free_hdlr = 0x01fd1b14
> malloc = 0x01fcbfe4
>
> TFTP from server 10.0.0.12; our IP address is 10.0.0.62
> Filename 'linux'.
> Load address: 0x100000
> Loading: /
> done
> Bytes transferred = 458355 (6fe73 hex)
> free = 0x01fcc4d8
> ## Booting image at 00100000 ...
> Image Name: linux 2.4
> Image Type: PowerPC Linux Kernel Image (gzip compressed)
> Data Size: 458291 Bytes = 447 kB = 0 MB
> Load Address: 00000000
> Entry Point: 00000000
> Verifying Checksum ... OK
> Uncompressing Kernel Image ... OK
>
> Thanks,
> Craig MacDonald
>
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-09-21 22:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-19 19:35 Problem booting linux-2.4.4-2001-07-23 on EST SBC8260 with ppcboot 1.0.4 Craig MacDonald
2001-09-21 22:45 ` Kevin Fry [this message]
2001-09-23 18:00 ` Wolfgang Denk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3BABC303.1674D66E@carts.com \
--to=kevin@carts.com \
--cc=linuxppc-embedded@lists.linuxppc.org \
--cc=macdonldc@netscape.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).