summaryrefslogtreecommitdiffstats
path: root/arch/m68knommu/platform/68328/head-de2.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68knommu/platform/68328/head-de2.S')
-rw-r--r--arch/m68knommu/platform/68328/head-de2.S128
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/m68knommu/platform/68328/head-de2.S b/arch/m68knommu/platform/68328/head-de2.S
deleted file mode 100644
index f632fdc..0000000
--- a/arch/m68knommu/platform/68328/head-de2.S
+++ /dev/null
@@ -1,128 +0,0 @@
-
-#define MEM_END 0x00800000 /* Memory size 8Mb */
-
-#undef CRT_DEBUG
-
-.macro PUTC CHAR
-#ifdef CRT_DEBUG
- moveq #\CHAR, %d7
- jsr putc
-#endif
-.endm
-
- .global _start
- .global _rambase
- .global _ramvec
- .global _ramstart
- .global _ramend
-
- .data
-
-/*
- * Set up the usable of RAM stuff
- */
-_rambase:
- .long 0
-_ramvec:
- .long 0
-_ramstart:
- .long 0
-_ramend:
- .long 0
-
- .text
-
-_start:
-
-/*
- * Setup initial stack
- */
- /* disable all interrupts */
- movew #0x2700, %sr
- movel #-1, 0xfffff304
- movel #MEM_END-4, %sp
-
- PUTC '\r'
- PUTC '\n'
- PUTC 'A'
- PUTC 'B'
-
-/*
- * Determine end of RAM
- */
-
- movel #MEM_END, %a0
- movel %a0, _ramend
-
- PUTC 'C'
-
-/*
- * Move ROM filesystem above bss :-)
- */
-
- moveal #_sbss, %a0 /* romfs at the start of bss */
- moveal #_ebss, %a1 /* Set up destination */
- movel %a0, %a2 /* Copy of bss start */
-
- movel 8(%a0), %d1 /* Get size of ROMFS */
- addql #8, %d1 /* Allow for rounding */
- andl #0xfffffffc, %d1 /* Whole words */
-
- addl %d1, %a0 /* Copy from end */
- addl %d1, %a1 /* Copy from end */
- movel %a1, _ramstart /* Set start of ram */
-
-1:
- movel -(%a0), %d0 /* Copy dword */
- movel %d0, -(%a1)
- cmpl %a0, %a2 /* Check if at end */
- bne 1b
-
- PUTC 'D'
-
-/*
- * Initialize BSS segment to 0
- */
-
- lea _sbss, %a0
- lea _ebss, %a1
-
- /* Copy 0 to %a0 until %a0 == %a1 */
-2: cmpal %a0, %a1
- beq 1f
- clrl (%a0)+
- bra 2b
-1:
-
- PUTC 'E'
-
-/*
- * Load the current task pointer and stack
- */
-
- lea init_thread_union, %a0
- lea 0x2000(%a0), %sp
-
- PUTC 'F'
- PUTC '\r'
- PUTC '\n'
-
-/*
- * Go
- */
-
- jmp start_kernel
-
-/*
- * Local functions
- */
-
-#ifdef CRT_DEBUG
-putc:
- moveb %d7, 0xfffff907
-1:
- movew 0xfffff906, %d7
- andw #0x2000, %d7
- beq 1b
- rts
-#endif
OpenPOWER on IntegriCloud