+++ /dev/null
-/*
- * linux/arch/m68knommu/platform/68328/head-pilot.S
- * - A startup file for the MC68328
- *
- * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
- * Kenneth Albanowski <kjahds@kjahds.com>,
- * The Silver Hammer Group, Ltd.
- *
- * (c) 1995, Dionne & Associates
- * (c) 1995, DKG Display Tech.
- */
-
-#define ASSEMBLY
-
-#define IMMED #
-#define DBG_PUTC(x) moveb IMMED x, 0xfffff907
-
-
-.global _stext
-.global _start
-
-.global _rambase
-.global _ramvec
-.global _ramstart
-.global _ramend
-
-.global penguin_bits
-
-#ifdef CONFIG_PILOT
-
-#define IMR 0xFFFFF304
-
- .data
- .align 16
-
-penguin_bits:
-#include "bootlogo.rh"
-
-#endif
-
-/*****************************************************************************/
-
-.data
-
-/*
- * Set up the usable of RAM stuff. Size of RAM is determined then
- * an initial stack set up at the end.
- */
-.align 4
-_ramvec:
-.long 0
-_rambase:
-.long 0
-_ramstart:
-.long 0
-_ramend:
-.long 0
-
-.text
-
-_start:
-_stext:
-
-
-#ifdef CONFIG_M68328
-
-#ifdef CONFIG_PILOT
- .byte 0x4e, 0xfa, 0x00, 0x0a /* Jmp +X bytes */
- .byte 'b', 'o', 'o', 't'
- .word 10000
-
- nop
-#endif
-
- moveq #0, %d0
- movew %d0, 0xfffff618 /* Watchdog off */
- movel #0x00011f07, 0xfffff114 /* CS A1 Mask */
-
- movew #0x0800, 0xfffff906 /* Ignore CTS */
- movew #0x010b, 0xfffff902 /* BAUD to 9600 */
-
- movew #0x2410, 0xfffff200 /* PLLCR */
- movew #0x123, 0xfffff202 /* PLLFSR */
-
-#ifdef CONFIG_PILOT
- moveb #0, 0xfffffA27 /* LCKCON */
- movel #_start, 0xfffffA00 /* LSSA */
- moveb #0xa, 0xfffffA05 /* LVPW */
- movew #0x9f, 0xFFFFFa08 /* LXMAX */
- movew #0x9f, 0xFFFFFa0a /* LYMAX */
- moveb #9, 0xfffffa29 /* LBAR */
- moveb #0, 0xfffffa25 /* LPXCD */
- moveb #0x04, 0xFFFFFa20 /* LPICF */
- moveb #0x58, 0xfffffA27 /* LCKCON */
- moveb #0x85, 0xfffff429 /* PFDATA */
- moveb #0xd8, 0xfffffA27 /* LCKCON */
- moveb #0xc5, 0xfffff429 /* PFDATA */
- moveb #0xd5, 0xfffff429 /* PFDATA */
-
- moveal #0x00100000, %a3
- moveal #0x100ffc00, %a4
-#endif /* CONFIG_PILOT */
-
-#endif /* CONFIG_M68328 */
-
- movew #0x2700, %sr
- lea %a4@(-4), %sp
-
- DBG_PUTC('\r')
- DBG_PUTC('\n')
- DBG_PUTC('A')
-
- moveq #0,%d0
- movew #16384, %d0 /* PLL settle wait loop */
-L0:
- subw #1, %d0
- bne L0
-
- DBG_PUTC('B')
-
- /* Copy command line from beginning of RAM (+16) to end of bss */
- movel #CONFIG_VECTORBASE, %d7
- addl #16, %d7
- moveal %d7, %a0
- moveal #_ebss, %a1
- lea %a1@(512), %a2
-
- DBG_PUTC('C')
-
- /* Copy %a0 to %a1 until %a1 == %a2 */
-L2:
- movel %a0@+, %d0
- movel %d0, %a1@+
- cmpal %a1, %a2
- bhi L2
-
- /* Copy data+init segment from ROM to RAM */
- moveal #_etext, %a0
- moveal #_sdata, %a1
- moveal #__init_end, %a2
-
- DBG_PUTC('D')
-
- /* Copy %a0 to %a1 until %a1 == %a2 */
-LD1:
- movel %a0@+, %d0
- movel %d0, %a1@+
- cmpal %a1, %a2
- bhi LD1
-
- DBG_PUTC('E')
-
- moveal #_sbss, %a0
- moveal #_ebss, %a1
-
- /* Copy 0 to %a0 until %a0 == %a1 */
-L1:
- movel #0, %a0@+
- cmpal %a0, %a1
- bhi L1
-
- DBG_PUTC('F')
-
- /* Copy command line from end of bss to command line */
- moveal #_ebss, %a0
- moveal #command_line, %a1
- lea %a1@(512), %a2
-
- DBG_PUTC('G')
-
- /* Copy %a0 to %a1 until %a1 == %a2 */
-L3:
- movel %a0@+, %d0
- movel %d0, %a1@+
- cmpal %a1, %a2
- bhi L3
-
- movel #_sdata, %d0
- movel %d0, _rambase
- movel #_ebss, %d0
- movel %d0, _ramstart
-
- movel %a4, %d0
- subl #4096, %d0 /* Reserve 4K of stack */
- moveq #79, %d7
- movel %d0, _ramend
-
- movel %a3, %d0
- movel %d0, rom_length
-
- pea 0
- pea env
- pea %sp@(4)
- pea 0
-
- DBG_PUTC('H')
-
-#ifdef CONFIG_PILOT
- movel #penguin_bits, 0xFFFFFA00
- moveb #10, 0xFFFFFA05
- movew #160, 0xFFFFFA08
- movew #160, 0xFFFFFA0A
-#endif /* CONFIG_PILOT */
-
- DBG_PUTC('I')
-
- lea init_thread_union, %a0
- lea 0x2000(%a0), %sp
-
- DBG_PUTC('J')
- DBG_PUTC('\r')
- DBG_PUTC('\n')
-
- jsr start_kernel
-_exit:
-
- jmp _exit
-
-
- .data
-env:
- .long 0
git.openpandora.org / pandora-kernel.git / blobdiff