m68knommu: platform code merge for 68000 core cpus
This patch merges all 68000 core cpus into one directory. There is a lot of common code in the 68328, 68EZ328 and 68VZ328 directories. This will also facilitate easy development of support for original stand alone MC68000 CPU machines. Signed-off-by: Luis Alves <ljalvs@gmail.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Luis Alves
Greg Ungerer
parent
b69f0859dc
commit
99e083747d
|
|
@ -92,7 +92,7 @@ endif
|
|||
head-y := arch/m68k/kernel/head.o
|
||||
head-$(CONFIG_SUN3) := arch/m68k/kernel/sun3-head.o
|
||||
head-$(CONFIG_M68360) := arch/m68k/platform/68360/head.o
|
||||
head-$(CONFIG_M68000) := arch/m68k/platform/68328/head.o
|
||||
head-$(CONFIG_M68000) := arch/m68k/platform/68000/head.o
|
||||
head-$(CONFIG_COLDFIRE) := arch/m68k/platform/coldfire/head.o
|
||||
|
||||
core-y += arch/m68k/kernel/ arch/m68k/mm/
|
||||
|
|
@ -114,9 +114,7 @@ core-$(CONFIG_M68040) += arch/m68k/fpsp040/
|
|||
core-$(CONFIG_M68060) += arch/m68k/ifpsp060/
|
||||
core-$(CONFIG_M68KFPU_EMU) += arch/m68k/math-emu/
|
||||
core-$(CONFIG_M68360) += arch/m68k/platform/68360/
|
||||
core-$(CONFIG_M68000) += arch/m68k/platform/68328/
|
||||
core-$(CONFIG_M68EZ328) += arch/m68k/platform/68EZ328/
|
||||
core-$(CONFIG_M68VZ328) += arch/m68k/platform/68VZ328/
|
||||
core-$(CONFIG_M68000) += arch/m68k/platform/68000/
|
||||
core-$(CONFIG_COLDFIRE) += arch/m68k/platform/coldfire/
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,18 @@
|
|||
##################################################
|
||||
#
|
||||
# Makefile for 68000 core based cpus
|
||||
#
|
||||
# 2012.10.21, Luis Alves <ljalvs@gmail.com>
|
||||
# Merged all 68000 based cpu's config
|
||||
# files into a single directory.
|
||||
#
|
||||
|
||||
# 68328, 68EZ328, 68VZ328
|
||||
|
||||
obj-y += entry.o ints.o timers.o
|
||||
obj-$(CONFIG_M68328) += m68328.o
|
||||
obj-$(CONFIG_M68EZ328) += m68EZ328.o
|
||||
obj-$(CONFIG_M68VZ328) += m68VZ328.o
|
||||
obj-$(CONFIG_ROM) += romvec.o
|
||||
|
||||
extra-y := head.o
|
||||
|
|
@ -0,0 +1,240 @@
|
|||
/*
|
||||
* head.S - Common startup code for 68000 core based CPU's
|
||||
*
|
||||
* 2012.10.21, Luis Alves <ljalvs@gmail.com>, Single head.S file for all
|
||||
* 68000 core based CPU's. Based on the sources from:
|
||||
* Coldfire by Greg Ungerer <gerg@snapgear.com>
|
||||
* 68328 by D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
|
||||
* Kenneth Albanowski <kjahds@kjahds.com>,
|
||||
* The Silver Hammer Group, Ltd.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/linkage.h>
|
||||
#include <linux/init.h>
|
||||
#include <asm/asm-offsets.h>
|
||||
#include <asm/thread_info.h>
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* UCSIMM and UCDIMM use CONFIG_MEMORY_RESERVE to reserve some RAM
|
||||
*****************************************************************************/
|
||||
#ifdef CONFIG_MEMORY_RESERVE
|
||||
#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE)-(CONFIG_MEMORY_RESERVE*0x100000)
|
||||
#else
|
||||
#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE)
|
||||
#endif
|
||||
/*****************************************************************************/
|
||||
|
||||
.global _start
|
||||
.global _rambase
|
||||
.global _ramvec
|
||||
.global _ramstart
|
||||
.global _ramend
|
||||
|
||||
#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD)
|
||||
.global bootlogo_bits
|
||||
#endif
|
||||
|
||||
/* Defining DEBUG_HEAD_CODE, serial port in 68x328 is inited */
|
||||
/* #define DEBUG_HEAD_CODE */
|
||||
#undef DEBUG_HEAD_CODE
|
||||
|
||||
.data
|
||||
|
||||
/*****************************************************************************
|
||||
* RAM setup pointers. Used by the kernel to determine RAM location and size.
|
||||
*****************************************************************************/
|
||||
|
||||
_rambase:
|
||||
.long 0
|
||||
_ramvec:
|
||||
.long 0
|
||||
_ramstart:
|
||||
.long 0
|
||||
_ramend:
|
||||
.long 0
|
||||
|
||||
__HEAD
|
||||
|
||||
/*****************************************************************************
|
||||
* Entry point, where all begins!
|
||||
*****************************************************************************/
|
||||
|
||||
_start:
|
||||
|
||||
/* Pilot need this specific signature at the start of ROM */
|
||||
#ifdef CONFIG_PILOT
|
||||
.byte 0x4e, 0xfa, 0x00, 0x0a /* bra opcode (jmp 10 bytes) */
|
||||
.byte 'b', 'o', 'o', 't'
|
||||
.word 10000
|
||||
nop
|
||||
moveq #0, %d0
|
||||
movew %d0, 0xfffff618 /* Watchdog off */
|
||||
movel #0x00011f07, 0xfffff114 /* CS A1 Mask */
|
||||
#endif /* CONFIG_PILOT */
|
||||
|
||||
movew #0x2700, %sr /* disable all interrupts */
|
||||
|
||||
/*****************************************************************************
|
||||
* Setup PLL and wait for it to settle (in 68x328 cpu's).
|
||||
* Also, if enabled, init serial port.
|
||||
*****************************************************************************/
|
||||
#if defined(CONFIG_M68328) || \
|
||||
defined(CONFIG_M68EZ328) || \
|
||||
defined(CONFIG_M68VZ328)
|
||||
|
||||
/* Serial port setup. Should only be needed if debugging this startup code. */
|
||||
#ifdef DEBUG_HEAD_CODE
|
||||
movew #0x0800, 0xfffff906 /* Ignore CTS */
|
||||
movew #0x010b, 0xfffff902 /* BAUD to 9600 */
|
||||
movew #0xe100, 0xfffff900 /* enable */
|
||||
#endif /* DEBUG_HEAD */
|
||||
|
||||
#ifdef CONFIG_PILOT
|
||||
movew #0x2410, 0xfffff200 /* PLLCR */
|
||||
#else
|
||||
movew #0x2400, 0xfffff200 /* PLLCR */
|
||||
#endif
|
||||
movew #0x0123, 0xfffff202 /* PLLFSR */
|
||||
moveq #0, %d0
|
||||
movew #16384, %d0 /* PLL settle wait loop */
|
||||
_pll_settle:
|
||||
subw #1, %d0
|
||||
bne _pll_settle
|
||||
#endif /* CONFIG_M68x328 */
|
||||
|
||||
|
||||
/*****************************************************************************
|
||||
* If running kernel from ROM some specific initialization has to be done.
|
||||
* (Assuming that everything is already init'ed when running from RAM)
|
||||
*****************************************************************************/
|
||||
#ifdef CONFIG_ROMKERNEL
|
||||
|
||||
/*****************************************************************************
|
||||
* Init chip registers (uCsimm specific)
|
||||
*****************************************************************************/
|
||||
#ifdef CONFIG_UCSIMM
|
||||
moveb #0x00, 0xfffffb0b /* Watchdog off */
|
||||
moveb #0x10, 0xfffff000 /* SCR */
|
||||
moveb #0x00, 0xfffff40b /* enable chip select */
|
||||
moveb #0x00, 0xfffff423 /* enable /DWE */
|
||||
moveb #0x08, 0xfffffd0d /* disable hardmap */
|
||||
moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */
|
||||
movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */
|
||||
movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */
|
||||
movew #0x8f00, 0xfffffc00 /* DRAM configuration */
|
||||
movew #0x9667, 0xfffffc02 /* DRAM control */
|
||||
movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */
|
||||
movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */
|
||||
moveb #0x40, 0xfffff300 /* IVR */
|
||||
movel #0x007FFFFF, %d0 /* IMR */
|
||||
movel %d0, 0xfffff304
|
||||
moveb 0xfffff42b, %d0
|
||||
andb #0xe0, %d0
|
||||
moveb %d0, 0xfffff42b
|
||||
#endif
|
||||
|
||||
/*****************************************************************************
|
||||
* Init LCD controller.
|
||||
* (Assuming that LCD controller is already init'ed when running from RAM)
|
||||
*****************************************************************************/
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
#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 */
|
||||
movel #bootlogo_bits, 0xFFFFFA00 /* LSSA */
|
||||
moveb #10, 0xFFFFFA05 /* LVPW */
|
||||
movew #160, 0xFFFFFA08 /* LXMAX */
|
||||
movew #160, 0xFFFFFA0A /* LYMAX */
|
||||
#else /* CONFIG_PILOT */
|
||||
movel #bootlogo_bits, 0xfffffA00 /* LSSA */
|
||||
moveb #0x28, 0xfffffA05 /* LVPW */
|
||||
movew #0x280, 0xFFFFFa08 /* LXMAX */
|
||||
movew #0x1df, 0xFFFFFa0a /* LYMAX */
|
||||
moveb #0, 0xfffffa29 /* LBAR */
|
||||
moveb #0, 0xfffffa25 /* LPXCD */
|
||||
moveb #0x08, 0xFFFFFa20 /* LPICF */
|
||||
moveb #0x01, 0xFFFFFA21 /* -ve pol */
|
||||
moveb #0x81, 0xfffffA27 /* LCKCON */
|
||||
movew #0xff00, 0xfffff412 /* LCD pins */
|
||||
#endif /* CONFIG_PILOT */
|
||||
#endif /* CONFIG_INIT_LCD */
|
||||
|
||||
/*****************************************************************************
|
||||
* Kernel is running from FLASH/ROM (XIP)
|
||||
* Copy init text & data to RAM
|
||||
*****************************************************************************/
|
||||
moveal #_etext, %a0
|
||||
moveal #_sdata, %a1
|
||||
moveal #__bss_start, %a2
|
||||
_copy_initmem:
|
||||
movel %a0@+, %a1@+
|
||||
cmpal %a1, %a2
|
||||
bhi _copy_initmem
|
||||
#endif /* CONFIG_ROMKERNEL */
|
||||
|
||||
/*****************************************************************************
|
||||
* Setup basic memory information for kernel
|
||||
*****************************************************************************/
|
||||
movel #CONFIG_VECTORBASE,_ramvec /* set vector base location */
|
||||
movel #CONFIG_RAMBASE,_rambase /* set the base of RAM */
|
||||
movel #RAMEND, _ramend /* set end ram addr */
|
||||
lea __bss_stop,%a1
|
||||
movel %a1,_ramstart
|
||||
|
||||
/*****************************************************************************
|
||||
* If the kernel is in RAM, move romfs to right above bss and
|
||||
* adjust _ramstart to where romfs ends.
|
||||
*
|
||||
* (Do this only if CONFIG_MTD_UCLINUX is true)
|
||||
*****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_ROMFS_FS) && defined(CONFIG_RAMKERNEL) && \
|
||||
defined(CONFIG_MTD_UCLINUX)
|
||||
lea __bss_start, %a0 /* get start of bss */
|
||||
lea __bss_stop, %a1 /* set up destination */
|
||||
movel %a0, %a2 /* copy of bss start */
|
||||
|
||||
movel 8(%a0), %d0 /* get size of ROMFS */
|
||||
addql #8, %d0 /* allow for rounding */
|
||||
andl #0xfffffffc, %d0 /* whole words */
|
||||
|
||||
addl %d0, %a0 /* copy from end */
|
||||
addl %d0, %a1 /* copy from end */
|
||||
movel %a1, _ramstart /* set start of ram */
|
||||
_copy_romfs:
|
||||
movel -(%a0), -(%a1) /* copy dword */
|
||||
cmpl %a0, %a2 /* check if at end */
|
||||
bne _copy_romfs
|
||||
#endif /* CONFIG_ROMFS_FS && CONFIG_RAMKERNEL && CONFIG_MTD_UCLINUX */
|
||||
|
||||
/*****************************************************************************
|
||||
* Clear bss region
|
||||
*****************************************************************************/
|
||||
lea __bss_start, %a0 /* get start of bss */
|
||||
lea __bss_stop, %a1 /* get end of bss */
|
||||
_clear_bss:
|
||||
movel #0, (%a0)+ /* clear each word */
|
||||
cmpl %a0, %a1 /* check if at end */
|
||||
bne _clear_bss
|
||||
|
||||
/*****************************************************************************
|
||||
* Load the current task pointer and stack.
|
||||
*****************************************************************************/
|
||||
lea init_thread_union,%a0
|
||||
lea THREAD_SIZE(%a0),%sp
|
||||
jsr start_kernel /* start Linux kernel */
|
||||
_exit:
|
||||
jmp _exit /* should never get here */
|
||||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* linux/arch/m68knommu/platform/68328/ints.c
|
||||
* ints.c - Generic interrupt controller support
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
/***************************************************************************/
|
||||
|
||||
/*
|
||||
* linux/arch/m68knommu/platform/68328/config.c
|
||||
* m68328.c - 68328 specific config
|
||||
*
|
||||
* Copyright (C) 1993 Hamish Macdonald
|
||||
* Copyright (C) 1999 D. Jeff Dionne
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
/***************************************************************************/
|
||||
|
||||
/*
|
||||
* linux/arch/m68knommu/platform/68EZ328/config.c
|
||||
* m68EZ328.c - 68EZ328 specific config
|
||||
*
|
||||
* Copyright (C) 1993 Hamish Macdonald
|
||||
* Copyright (C) 1999 D. Jeff Dionne
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
/***************************************************************************/
|
||||
|
||||
/*
|
||||
* linux/arch/m68knommu/platform/68VZ328/config.c
|
||||
* m68VZ328.c - 68VZ328 specific config
|
||||
*
|
||||
* Copyright (C) 1993 Hamish Macdonald
|
||||
* Copyright (C) 1999 D. Jeff Dionne
|
||||
|
|
@ -28,7 +28,7 @@
|
|||
#include <asm/bootstd.h>
|
||||
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
#include "bootlogo.h"
|
||||
#include "bootlogo-vz.h"
|
||||
#endif
|
||||
|
||||
/***************************************************************************/
|
||||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* linux/arch/m68knommu/platform/68328/romvec.S
|
||||
* romvec.S - Vector table for 68000 cpus
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive
|
||||
|
|
@ -1,7 +1,7 @@
|
|||
/***************************************************************************/
|
||||
|
||||
/*
|
||||
* linux/arch/m68knommu/platform/68328/timers.c
|
||||
* timers.c - Generic hardware timer support.
|
||||
*
|
||||
* Copyright (C) 1993 Hamish Macdonald
|
||||
* Copyright (C) 1999 D. Jeff Dionne
|
||||
|
|
@ -1,21 +0,0 @@
|
|||
#
|
||||
# Makefile for arch/m68knommu/platform/68328.
|
||||
#
|
||||
|
||||
model-y := ram
|
||||
model-$(CONFIG_ROMKERNEL) := rom
|
||||
|
||||
head-y = head-$(model-y).o
|
||||
head-$(CONFIG_PILOT) = head-pilot.o
|
||||
head-$(CONFIG_DRAGEN2) = head-de2.o
|
||||
|
||||
obj-y += entry.o ints.o timers.o
|
||||
obj-$(CONFIG_M68328) += config.o
|
||||
obj-$(CONFIG_ROM) += romvec.o
|
||||
|
||||
extra-y := head.o
|
||||
|
||||
$(obj)/head.o: $(obj)/$(head-y)
|
||||
ln -sf $(head-y) $(obj)/head.o
|
||||
|
||||
clean-files := $(obj)/head.o $(head-y)
|
||||
|
|
@ -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 #__bss_start, %a0 /* romfs at the start of bss */
|
||||
moveal #__bss_stop, %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 __bss_start, %a0
|
||||
lea __bss_stop, %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
|
||||
|
|
@ -1,207 +0,0 @@
|
|||
/*
|
||||
* 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 bootlogo_bits
|
||||
|
||||
/*****************************************************************************/
|
||||
|
||||
.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 #__bss_stop, %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 #__bss_start, %a0
|
||||
moveal #__bss_stop, %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 #__bss_stop, %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 #__bss_stop, %d0
|
||||
movel %d0, _ramstart
|
||||
|
||||
movel %a4, %d0
|
||||
subl #4096, %d0 /* Reserve 4K of stack */
|
||||
moveq #79, %d7
|
||||
movel %d0, _ramend
|
||||
|
||||
pea 0
|
||||
pea env
|
||||
pea %sp@(4)
|
||||
pea 0
|
||||
|
||||
DBG_PUTC('H')
|
||||
|
||||
#ifdef CONFIG_PILOT
|
||||
movel #bootlogo_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
|
||||
|
|
@ -1,141 +0,0 @@
|
|||
|
||||
.global __main
|
||||
.global __rom_start
|
||||
|
||||
.global _rambase
|
||||
.global _ramstart
|
||||
|
||||
.global splash_bits
|
||||
.global _start
|
||||
.global _stext
|
||||
.global _edata
|
||||
|
||||
#define DEBUG
|
||||
#define ROM_OFFSET 0x10C00000
|
||||
#define STACK_GAURD 0x10
|
||||
|
||||
.text
|
||||
|
||||
_start:
|
||||
_stext:
|
||||
movew #0x2700, %sr /* Exceptions off! */
|
||||
|
||||
#if 0
|
||||
/* Init chip registers. uCsimm specific */
|
||||
moveb #0x00, 0xfffffb0b /* Watchdog off */
|
||||
moveb #0x10, 0xfffff000 /* SCR */
|
||||
|
||||
movew #0x2400, 0xfffff200 /* PLLCR */
|
||||
movew #0x0123, 0xfffff202 /* PLLFSR */
|
||||
|
||||
moveb #0x00, 0xfffff40b /* enable chip select */
|
||||
moveb #0x00, 0xfffff423 /* enable /DWE */
|
||||
moveb #0x08, 0xfffffd0d /* disable hardmap */
|
||||
moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */
|
||||
|
||||
movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */
|
||||
movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */
|
||||
|
||||
movew #0x8f00, 0xfffffc00 /* DRAM configuration */
|
||||
movew #0x9667, 0xfffffc02 /* DRAM control */
|
||||
movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */
|
||||
movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */
|
||||
|
||||
moveb #0x40, 0xfffff300 /* IVR */
|
||||
movel #0x007FFFFF, %d0 /* IMR */
|
||||
movel %d0, 0xfffff304
|
||||
|
||||
moveb 0xfffff42b, %d0
|
||||
andb #0xe0, %d0
|
||||
moveb %d0, 0xfffff42b
|
||||
|
||||
moveb #0x08, 0xfffff907 /* Ignore CTS */
|
||||
movew #0x010b, 0xfffff902 /* BAUD to 9600 */
|
||||
movew #0xe100, 0xfffff900 /* enable */
|
||||
#endif
|
||||
|
||||
movew #16384, %d0 /* PLL settle wait loop */
|
||||
L0:
|
||||
subw #1, %d0
|
||||
bne L0
|
||||
#ifdef DEBUG
|
||||
moveq #70, %d7 /* 'F' */
|
||||
moveb %d7,0xfffff907 /* No absolute addresses */
|
||||
pclp1:
|
||||
movew 0xfffff906, %d7
|
||||
andw #0x2000, %d7
|
||||
beq pclp1
|
||||
#endif /* DEBUG */
|
||||
|
||||
#ifdef DEBUG
|
||||
moveq #82, %d7 /* 'R' */
|
||||
moveb %d7,0xfffff907 /* No absolute addresses */
|
||||
pclp3:
|
||||
movew 0xfffff906, %d7
|
||||
andw #0x2000, %d7
|
||||
beq pclp3
|
||||
#endif /* DEBUG */
|
||||
moveal #0x007ffff0, %ssp
|
||||
moveal #__bss_start, %a0
|
||||
moveal #__bss_stop, %a1
|
||||
|
||||
/* Copy 0 to %a0 until %a0 >= %a1 */
|
||||
L1:
|
||||
movel #0, %a0@+
|
||||
cmpal %a0, %a1
|
||||
bhi L1
|
||||
|
||||
#ifdef DEBUG
|
||||
moveq #67, %d7 /* 'C' */
|
||||
jsr putc
|
||||
#endif /* DEBUG */
|
||||
|
||||
pea 0
|
||||
pea env
|
||||
pea %sp@(4)
|
||||
pea 0
|
||||
|
||||
#ifdef DEBUG
|
||||
moveq #70, %d7 /* 'F' */
|
||||
jsr putc
|
||||
#endif /* DEBUG */
|
||||
|
||||
lp:
|
||||
jsr start_kernel
|
||||
jmp lp
|
||||
_exit:
|
||||
|
||||
jmp _exit
|
||||
|
||||
__main:
|
||||
/* nothing */
|
||||
rts
|
||||
|
||||
#ifdef DEBUG
|
||||
putc:
|
||||
moveb %d7,0xfffff907
|
||||
pclp:
|
||||
movew 0xfffff906, %d7
|
||||
andw #0x2000, %d7
|
||||
beq pclp
|
||||
rts
|
||||
#endif /* DEBUG */
|
||||
|
||||
.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
|
||||
|
||||
env:
|
||||
.long 0
|
||||
|
|
@ -1,105 +0,0 @@
|
|||
|
||||
.global _start
|
||||
.global _stext
|
||||
|
||||
.global _rambase
|
||||
.global _ramvec
|
||||
.global _ramstart
|
||||
.global _ramend
|
||||
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
.global bootlogo_bits
|
||||
#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
|
||||
|
||||
#define RAMEND (CONFIG_RAMBASE + CONFIG_RAMSIZE)
|
||||
|
||||
.text
|
||||
_start:
|
||||
_stext: movew #0x2700,%sr
|
||||
#ifdef CONFIG_INIT_LCD
|
||||
movel #bootlogo_bits, 0xfffffA00 /* LSSA */
|
||||
moveb #0x28, 0xfffffA05 /* LVPW */
|
||||
movew #0x280, 0xFFFFFa08 /* LXMAX */
|
||||
movew #0x1df, 0xFFFFFa0a /* LYMAX */
|
||||
moveb #0, 0xfffffa29 /* LBAR */
|
||||
moveb #0, 0xfffffa25 /* LPXCD */
|
||||
moveb #0x08, 0xFFFFFa20 /* LPICF */
|
||||
moveb #0x01, 0xFFFFFA21 /* -ve pol */
|
||||
moveb #0x81, 0xfffffA27 /* LCKCON */
|
||||
movew #0xff00, 0xfffff412 /* LCD pins */
|
||||
#endif
|
||||
moveal #RAMEND-CONFIG_MEMORY_RESERVE*0x100000 - 0x10, %sp
|
||||
movew #32767, %d0 /* PLL settle wait loop */
|
||||
1: subq #1, %d0
|
||||
bne 1b
|
||||
|
||||
/* Copy data segment from ROM to RAM */
|
||||
moveal #_etext, %a0
|
||||
moveal #_sdata, %a1
|
||||
moveal #_edata, %a2
|
||||
|
||||
/* Copy %a0 to %a1 until %a1 == %a2 */
|
||||
1: movel %a0@+, %a1@+
|
||||
cmpal %a1, %a2
|
||||
bhi 1b
|
||||
|
||||
moveal #__bss_start, %a0
|
||||
moveal #__bss_stop, %a1
|
||||
/* Copy 0 to %a0 until %a0 == %a1 */
|
||||
|
||||
1:
|
||||
clrl %a0@+
|
||||
cmpal %a0, %a1
|
||||
bhi 1b
|
||||
|
||||
movel #_sdata, %d0
|
||||
movel %d0, _rambase
|
||||
movel #__bss_stop, %d0
|
||||
movel %d0, _ramstart
|
||||
movel #RAMEND-CONFIG_MEMORY_RESERVE*0x100000, %d0
|
||||
movel %d0, _ramend
|
||||
movel #CONFIG_VECTORBASE, %d0
|
||||
movel %d0, _ramvec
|
||||
|
||||
/*
|
||||
* load the current task pointer and stack
|
||||
*/
|
||||
lea init_thread_union, %a0
|
||||
lea 0x2000(%a0), %sp
|
||||
|
||||
1: jsr start_kernel
|
||||
bra 1b
|
||||
_exit:
|
||||
|
||||
jmp _exit
|
||||
|
||||
|
||||
putc:
|
||||
moveb %d7,0xfffff907
|
||||
1:
|
||||
movew 0xfffff906, %d7
|
||||
andw #0x2000, %d7
|
||||
beq 1b
|
||||
rts
|
||||
|
||||
.data
|
||||
env:
|
||||
.long 0
|
||||
.text
|
||||
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
#
|
||||
# Makefile for arch/m68knommu/platform/68EZ328.
|
||||
#
|
||||
|
||||
obj-y := config.o
|
||||
|
|
@ -1,5 +0,0 @@
|
|||
#
|
||||
# Makefile for arch/m68k/platform/68VZ328.
|
||||
#
|
||||
|
||||
obj-y := config.o
|
||||
Loading…
Reference in New Issue