mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-29 08:01:08 +00:00
3bac351370
- 16/32 MB and 50/80 MHz support with auto-detection for IP860 - ETH05 and BEDBUG support for CU824 - added support for MicroSys CPC45 - new BOOTROM/FLASH0 and DOC base for PM826 * Patch by Robert Schwebel, 12 Mar 2003: Fix the chpart command on innokom board * Name cleanup: mv include/asm-i386/ppcboot-i386.h include/asm-i386/u-boot-i386.h s/PPCBoot/U-Boot/ in some files s/pImage/uImage/ in some files * Patch by Detlev Zundel, 15 Jan 2003: Fix '' command line quoting * Patch by The LEOX team, 19 Jan 2003: - add support for the ELPT860 board - add support for Dallas ds164x RTC
74 lines
2.1 KiB
Text
74 lines
2.1 KiB
Text
This is my attempt to port U-Boot to the i386 platform. This
|
|
work was sponsored by my emplyer, Omicron Ceti AB. http://www.omicron.se
|
|
|
|
It is currently capable of booting a linux bzImage from flash on
|
|
the AMD SC520 CDP platform.
|
|
|
|
It was originally based on PPCBoot taken from the CVS October 28 2002.
|
|
|
|
To compile:
|
|
|
|
1) Unpack the source tree, either from the complete tarball or
|
|
from the virgin snapshot + the patch
|
|
|
|
2) Configure the source
|
|
$ make sc520_cdp_comfig
|
|
$ make
|
|
|
|
To use this code on the CDP:
|
|
1) Make a suitable kernel, I used 2.4.19 with the mtd-support updated
|
|
from the MTD CVS and a patch to allow root=/dev/mtdblock1 which I
|
|
included at the end of this file.
|
|
The following options in the MTD section might be useful:
|
|
|
|
CONFIG_MTD_PHYSMAP=y
|
|
CONFIG_MTD_PHYSMAP_START=38100000
|
|
CONFIG_MTD_PHYSMAP_LEN=7a0000
|
|
CONFIG_MTD_PHYSMAP_BUSWIDTH=2
|
|
|
|
|
|
2) Program it in to the CDP flashbank with remon
|
|
u-boot.bin should be programmed att offset 0x7e000 and the kernel at
|
|
offset 0. If you want to use a jffs2 root file system (not included here),
|
|
it should be programmed to offset 0x100000.
|
|
|
|
remon> z
|
|
remon> yi
|
|
remon> ns u-boot.bin 7e0000
|
|
remon> ns bzImage 0
|
|
remon> ns image.jffs2 100000
|
|
|
|
3) Connect a terminal to the 25pin serial port at 9600bps, and start the CDP.
|
|
|
|
remon> z
|
|
remon> g
|
|
|
|
4) U-Boot should output some message and a prompt on the terminal, to
|
|
start the kernel issue the following command:
|
|
|
|
BOOT> bootm
|
|
|
|
5) The kernel should boot, and mount the root filesystem if present.
|
|
|
|
We hope you find this stuff useful
|
|
Daniel Engström, Omicron Ceti AB, daniel@omicron.se
|
|
|
|
|
|
|
|
--- linux-2.4.19-orig/init/do_mounts.c Sat Aug 3 02:39:46 2002
|
|
+++ linux-2.4.19/init/do_mounts.c Mon Sep 23 16:21:33 2002
|
|
@@ -224,6 +224,14 @@
|
|
{ "ftlc", 0x2c10 },
|
|
{ "ftld", 0x2c18 },
|
|
{ "mtdblock", 0x1f00 },
|
|
+ { "mtdblock0", 0x1f00 },
|
|
+ { "mtdblock1", 0x1f01 },
|
|
+ { "mtdblock2", 0x1f02 },
|
|
+ { "mtdblock3", 0x1f03 },
|
|
+ { "mtdblock4", 0x1f04 },
|
|
+ { "mtdblock5", 0x1f05 },
|
|
+ { "mtdblock6", 0x1f06 },
|
|
+ { "mtdblock7", 0x1f07 },
|
|
{ NULL, 0 }
|
|
};
|
|
|