Update of /cvsroot/linux-vax/kernel-2.4/arch/vax/boot
In directory usw-pr-cvs1:/tmp/cvs-serv28569/boot
Modified Files:
head.S
Log Message:
Some changes for scsi boot. Add low memory DMA mapping for KA46 so that
lance will work
Index: head.S
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/arch/vax/boot/head.S,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- head.S 2001/07/31 17:28:26 1.12
+++ head.S 2001/09/14 20:30:21 1.13
@@ -20,16 +20,25 @@
.globl start
start:
nop # relocation code, and stack setup required
+# movzbl $0x41,r2 # want to see something early while i debug scsi boot.
+# jsb 0x20040058
+ nop
+ nop
nop
- nop
- nop
# disable memory mapping
mtpr $0, $PR_MAPEN
-
+ mtpr $31, $PR_IPL
# save r11, ap and scbb
movl ap, boot_ap
movl r11, boot_r11
mfpr $PR_SCBB, boot_scb
+# put the sp somewhere safe, over our bootblock in fact
+ moval start, r5
+ subl2 $0x200, r5
+ movl r5,sp
+
+# movzbl $0x42,r2
+# jsb 0x20040058
jsb identify_cpu
@@ -50,7 +59,7 @@
# print the cpu type
jsb crlf
- movab msg_cpu_type, r10
+ movab msg_cpu_type, r10
jsb printstr
movl mv, r10
@@ -326,7 +335,7 @@
msg_starting_vm:
.ascii "Starting VM\0"
.align 1
-
+
# identify cpu
.globl cpu_id
cpu_id:
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