Changeset 48c1ef9 in mainline for arch/ppc64/src/boot/boot.S

Timestamp:

2006-05-21T20:38:18Z (19 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

040542aa

Parents:

bd55bbb

Message:

port ppc32 changes to ppc64 (raw)

File:

• arch/ppc64/src/boot/boot.S (modified) (2 diffs)

arch/ppc64/src/boot/boot.S

@@ -35 +35 @@
 kernel_image_start:
 
-        # load temporary stack
+        # load temporal kernel stack
         
-        lis sp, end_stack@ha
-        addi sp, sp, end_stack@l
+        lis sp, kernel_stack@ha
+        addi sp, sp, kernel_stack@l
+        
+        # set kernel stack for interrupt handling
+        
+        mr r31, sp
+        subis r31, r31, 0x8000
+        mtsprg0 r31
         
         # r3 contains physical address of bootinfo_t
         # r4 contains size of bootinfo_t
         
-        lis r31, 0x80000000@ha
-        addi r31, r31, 0x80000000@l
-        
-        add r3, r3, r31
+        addis r3, r3, 0x8000
 
         lis r31, bootinfo@ha
@@ -68 +71 @@
         bootinfo_end:
         
+        bl arch_pre_main
         b main_bsp
 
 .section K_DATA_START, "aw", @progbits
 
+.align 12
+kernel_stack_bottom:
         .space TEMP_STACK_SIZE
-end_stack:
+kernel_stack: