source: SVN/rincon/u-boot/board/cray/L1/bootscript.hush @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 2.7 KB
Line 
1# $Header$
2# hush bootscript for PPCBOOT on L1
3# note: all #s are in hex, do _NOT_ prefix it with 0x
4
5flash_rfs=ffc00000
6flash_krl=fff00000
7tftp_addr=100000
8tftp2_addr=1000000
9
10if printenv booted
11then
12        echo already booted before
13else
14        echo first boot in environment, create and save settings
15        setenv booted OK
16        saveenv
17fi
18
19setenv autoload no
20# clear out stale env stuff, so we get fresh from dhcp.
21for setting in initrd fromflash kernel rootfs rootpath
22do
23setenv $setting
24done
25
26dhcp
27
28# if host provides us with a different bootscript, us it.
29if printenv bootscript
30        then
31        tftp $tftp_addr $bootcript
32        if imi $tftp_addr
33        then
34                autoscript $tftp_addr
35        fi
36fi
37
38# default base kernel arguments.
39setenv bootargs $xbootargs devfs=mount ip=$ipaddr:$serverip:$gatewayip:$netmask:L1:eth0:off wdt=120
40
41# Have a kernel in flash?
42if imi $flash_krl
43then
44        echo ok kernel to boot from $flash_krl
45        setenv kernel $flash_krl
46else
47        echo no kernel to boot from $flash_krl, need tftp
48fi
49
50# Have a rootfs in flash?
51echo test for SQUASHfs at $flash_rfs
52
53if imi $flash_rfs
54then
55        echo appears to be a good initrd image at base of flash OK
56        setenv rootfs $flash_rfs
57else
58        echo no image at base of flash, need nfsroot or initrd
59fi
60
61# I boot from flash if told to and I can.
62if printenv fromflash && printenv kernel && printenv rootfs
63then
64        echo booting entirely from flash
65        setenv bootargs root=/dev/ram0 rw $bootargs
66        bootm $kernel $rootfs
67        echo oh no failed so I try some other stuff
68fi
69
70# TFTP down a kernel
71if printenv bootfile
72then
73        tftp $tftp_addr $bootfile
74        setenv kernel $tftp_addr
75        echo I will boot the TFTP kernel
76else
77        if printenv kernel
78        then
79                echo no bootfile specified, will use one from flash
80        else
81                setenv bootfile /opt/crayx1/craymcu/l1/flash/linux.image
82                echo OH NO! we have no bootfile,nor flash kernel! try default: $bootfile
83                tftp $tftp_addr $bootfile
84                setenv kernel $tftp_addr
85        fi
86fi
87
88# the rootfs.
89if printenv rootpath
90then
91        echo rootpath is $rootpath
92        if printenv initrd
93        then
94                echo initrd is also specified, so use $initrd
95                tftp $tftp2_addr $initrd
96                setenv bootargs root=/dev/ram0 rw cwsroot=$serverip:$rootpath $bootargs
97                bootm $kernel $tftp2_addr
98        else
99                echo initrd is not specified, so use NFSROOT $rootpat
100                setenv bootargs root=/dev/nfs ro nfsroot=$serverip:$rootpath $bootargs
101                bootm $kernel
102        fi
103else
104        echo we have no rootpath check for one in flash
105        if printenv rootfs
106        then
107                echo I will use the one in flash
108                setenv bootargs root=/dev/mtdblock/0 ro rootfstype=squashfs $bootargs
109                bootm $kernel
110        else
111                setenv rootpath /export/crayl1
112                echo OH NO! we have no rootpath,nor flash kernel! try default: $rootpath
113                setenv bootargs root=/dev/mtdblock/0 ro rootfstype=squashfs $bootargs
114                bootm $kernel
115        fi
116fi
117reset
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