diff options
Diffstat (limited to 'sysdeps/standalone/m68k/m68020')
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/Dist | 1 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/m68020.h | 87 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme135/Implies | 2 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme136/Dist | 1 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme136/Makefile | 23 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme136/_exit.c | 50 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme136/brdinit.c | 51 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme136/console.c | 101 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/mvme136/mvme136.ld | 61 | ||||
| -rw-r--r-- | sysdeps/standalone/m68k/m68020/start.S | 172 |
10 files changed, 0 insertions, 549 deletions
diff --git a/sysdeps/standalone/m68k/m68020/Dist b/sysdeps/standalone/m68k/m68020/Dist deleted file mode 100644 index 90b37b40eb..0000000000 --- a/sysdeps/standalone/m68k/m68020/Dist +++ /dev/null @@ -1 +0,0 @@ -m68020.h diff --git a/sysdeps/standalone/m68k/m68020/m68020.h b/sysdeps/standalone/m68k/m68020/m68020.h deleted file mode 100644 index 8eee00753e..0000000000 --- a/sysdeps/standalone/m68k/m68020/m68020.h +++ /dev/null @@ -1,87 +0,0 @@ -/* Copyright (C) 1994, 1997 Free Software Foundation, Inc. - Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), - On-Line Applications Research Corporation. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* m68020.h - * - * This file contains macros which are used to access MC68020 - * registers which are not addressable by C. These are - * useful when developing the board specific support. - */ - -#ifndef m68020_h__ -#define m68020_h__ - -typedef void ( *mc68020_isr )( void ); - -#define disable_intr( level ) \ - { (level) = 0; \ - asm volatile ( "movew %%sr,%0 ; \ - orw #0x0700,%%sr" \ - : "=d" ((level)) : "0" ((level)) ); \ - } - -#define enable_intr( level ) \ - { asm volatile ( "movew %0,%%sr " \ - : "=d" ((level)) : "0" ((level)) ); \ - } - -#define flash_intr( level ) \ - { asm volatile ( "movew %0,%%sr ; \ - orw #0x0700,%%sr" \ - : "=d" ((level)) : "0" ((level)) ); \ - } - -#define get_vbr( vbr ) \ - { (vbr) = 0; \ - asm volatile ( "movec %%vbr,%0 " \ - : "=a" (vbr) : "0" (vbr) ); \ - } - -#define set_vbr( vbr ) \ - { register mc68020_isr *_vbr= (mc68020_isr *)(vbr); \ - asm volatile ( "movec %0,%%vbr " \ - : "=a" (_vbr) : "0" (_vbr) ); \ - } - -#define enable_caching() \ - { register unsigned int _ctl=0x01; \ - asm volatile ( "movec %0,%%cacr" \ - : "=d" (_ctl) : "0" (_ctl) ); \ - } - -#define delay( microseconds ) \ - { register unsigned int _delay=(microseconds); \ - register unsigned int _tmp=123; \ - asm volatile( "0: \ - nbcd %0 ; \ - nbcd %0 ; \ - dbf %1,0 " \ - : "=d" (_tmp), "=d" (_delay) \ - : "0" (_tmp), "1" (_delay) ); \ - } - -#define enable_tracing() -#define cause_intr( X ) -#define clear_intr( X ) - -extern mc68020_isr M68Kvec[]; /* vector table address */ - -#endif -/* end of include file */ diff --git a/sysdeps/standalone/m68k/m68020/mvme135/Implies b/sysdeps/standalone/m68k/m68020/mvme135/Implies deleted file mode 100644 index 7142fe2985..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme135/Implies +++ /dev/null @@ -1,2 +0,0 @@ -# Motorola MVME135 and MVME136 are compatible. -standalone/m68k/m68020/mvme136 diff --git a/sysdeps/standalone/m68k/m68020/mvme136/Dist b/sysdeps/standalone/m68k/m68020/mvme136/Dist deleted file mode 100644 index 97b90583eb..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme136/Dist +++ /dev/null @@ -1 +0,0 @@ -mvme136.ld diff --git a/sysdeps/standalone/m68k/m68020/mvme136/Makefile b/sysdeps/standalone/m68k/m68020/mvme136/Makefile deleted file mode 100644 index 122c1b183e..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme136/Makefile +++ /dev/null @@ -1,23 +0,0 @@ -# Copyright (C) 1993, 1997 Free Software Foundation, Inc. -# This file is part of the GNU C Library. -# Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), -# On-Line Applications Research Corporation. - -# The GNU C Library is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2.1 of the License, or (at your option) any later version. - -# The GNU C Library is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# Lesser General Public License for more details. - -# You should have received a copy of the GNU Lesser General Public -# License along with the GNU C Library; if not, write to the Free -# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -# 02111-1307 USA. - -ifeq (bare,$(subdir)) -install-lib += mvme136.ld -endif diff --git a/sysdeps/standalone/m68k/m68020/mvme136/_exit.c b/sysdeps/standalone/m68k/m68020/mvme136/_exit.c deleted file mode 100644 index e5e078c198..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme136/_exit.c +++ /dev/null @@ -1,50 +0,0 @@ -/* Copyright (C) 1994, 1997, 1999 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), - On-Line Applications Research Corporation. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <unistd.h> -#include <stdlib.h> -#include "m68020.h" - -/* Return control to 135Bug */ - -void -__exit_trap () -{ - set_vbr( 0 ); /* restore 135Bug vectors */ - asm volatile( "trap #15" ); /* trap to 135Bug */ - asm volatile( ".short 0x63" ); /* return to 135Bug (.RETURN) */ - asm volatile( "jmp main" ); /* restart program */ -} - -/* The function `_exit' should take a status argument and simply - terminate program execution, using the low-order 8 bits of the - given integer as status. */ - -void -__attribute__ ((noreturn)) -_exit (status) - int status; -{ - /* status is ignored */ - - M68Kvec[ 45 ] = __exit_trap; /* install exit_trap handler */ - asm volatile( "trap #13" ); /* insures SUPV mode */ -} -weak_alias (_exit, _Exit) diff --git a/sysdeps/standalone/m68k/m68020/mvme136/brdinit.c b/sysdeps/standalone/m68k/m68020/mvme136/brdinit.c deleted file mode 100644 index 95b81c1e1b..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme136/brdinit.c +++ /dev/null @@ -1,51 +0,0 @@ -/* Copyright (C) 1994, 1997 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), - On-Line Applications Research Corporation. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <standalone.h> -#include "m68020.h" - -/* _Board_Initialize() - -This routine initializes the Motorola MVME135/MVME136. */ - -void -_Board_Initialize () -{ - mc68020_isr *monitors_vector_table; - int index; - - monitors_vector_table = (mc68020_isr *)0; /* 135Bug Vectors are at 0 */ - set_vbr( monitors_vector_table ); - - for ( index=2 ; index<=255 ; index++ ) - M68Kvec[ index ] = monitors_vector_table[ 32 ]; - - M68Kvec[ 2 ] = monitors_vector_table[ 2 ]; /* bus error vector */ - M68Kvec[ 4 ] = monitors_vector_table[ 4 ]; /* breakpoints vector */ - M68Kvec[ 9 ] = monitors_vector_table[ 9 ]; /* trace vector */ - M68Kvec[ 47 ] = monitors_vector_table[ 47 ]; /* system call vector */ - - set_vbr( &M68Kvec ); - - (*(unsigned char *)0xfffb0067) = 0x7f; /* make VME access round-robin */ - - enable_caching (); - -} diff --git a/sysdeps/standalone/m68k/m68020/mvme136/console.c b/sysdeps/standalone/m68k/m68020/mvme136/console.c deleted file mode 100644 index 85dee983bf..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme136/console.c +++ /dev/null @@ -1,101 +0,0 @@ -/* Copyright (C) 1994, 1996 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), - On-Line Applications Research Corporation. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <standalone.h> -#include "m68020.h" - -/* Console IO routines for a Motorola MVME135/MVME136 board. - -They currently use the B port. It should be possible to -use the A port by filling in the reset of the chip structure, -adding an ifdef for PORTA/PORTB, and switching the addresses, -and maybe the macros based on the macro. */ - -/* M68681 DUART chip register structures and constants */ - -typedef struct { - volatile unsigned char fill1[ 5 ]; /* channel A regs ( not used ) */ - volatile unsigned char isr; /* interrupt status reg */ - volatile unsigned char fill2[ 2 ]; /* counter regs (not used) */ - volatile unsigned char mr1mr2b; /* MR1B and MR2B regs */ - volatile unsigned char srb; /* status reg channel B */ - volatile unsigned char fill3; /* do not access */ - volatile unsigned char rbb; /* receive buffer channel B */ - volatile unsigned char ivr; /* interrupt vector register */ -} r_m681_info; - -typedef struct { - volatile unsigned char fill1[ 4 ]; /* channel A regs (not used) */ - volatile unsigned char acr; /* auxillary control reg */ - volatile unsigned char imr; /* interrupt mask reg */ - volatile unsigned char fill2[ 2 ]; /* counter regs (not used) */ - volatile unsigned char mr1mr2b; /* MR1B and MR2B regs */ - volatile unsigned char csrb; /* clock select reg */ - volatile unsigned char crb; /* command reg */ - volatile unsigned char tbb; /* transmit buffer channel B */ - volatile unsigned char ivr; /* interrupt vector register */ -} w_m681_info; - -#define RD_M68681 ((r_m681_info *)0xfffb0040) /* ptr to the M68681 */ -#define WR_M68681 ((w_m681_info *)0xfffb0040) /* ptr to the M68681 */ -#define RXRDYB 0x01 /* status reg recv ready mask */ -#define TXRDYB 0x04 /* status reg trans ready mask */ - -/* _Console_Putc - -This routine transmits a character out the M68681. It supports -XON/XOFF flow control. */ - -#define XON 0x11 /* control-Q */ -#define XOFF 0x13 /* control-S */ - -int -_Console_Putc (ch) - char ch; -{ - while ( ! (RD_M68681->srb & TXRDYB) ) ; - while ( RD_M68681->srb & RXRDYB ) /* must be an XOFF */ - if ( RD_M68681->rbb == XOFF ) - do { - while ( ! (RD_M68681->srb & RXRDYB) ) ; - } while ( RD_M68681->rbb != XON ); - - WR_M68681->tbb = ch; - return( 0 ); -} - -/* _Console_Getc - -This routine reads a character from the UART and returns it. */ - -int -_Console_Getc (poll) - int poll; -{ - if ( poll ) { - if ( !(RD_M68681->srb & RXRDYB) ) - return -1; - else - return RD_M68681->rbb; - } else { - while ( !(RD_M68681->srb & RXRDYB) ); - return RD_M68681->rbb; - } -} diff --git a/sysdeps/standalone/m68k/m68020/mvme136/mvme136.ld b/sysdeps/standalone/m68k/m68020/mvme136/mvme136.ld deleted file mode 100644 index 9a352f0095..0000000000 --- a/sysdeps/standalone/m68k/m68020/mvme136/mvme136.ld +++ /dev/null @@ -1,61 +0,0 @@ -/* Copyright (C) 1994, 1997 Free Software Foundation, Inc. - Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), - On-Line Applications Research Corporation. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* This file contains directives for the GNU linker which are specific -to the Motorola MVME136/MVME135 boards. */ - -MEMORY - { - ram : org = 0x3000, l = 1M - } - -/* This value is also when the space is allocated. If you change -this one, change the other one!!! */ - -heap_size = 0x20000; - -SECTIONS -{ - .text 0x3000 : - { - text_start = ABSOLUTE(.) ; - *(.text) - etext = ALIGN( 0x10 ) ; - } - - .data ADDR( .text ) + SIZEOF( .text ): - { - data_start = . ; - *(.data) - edata = ALIGN( 0x10 ) ; - } - - .bss ADDR( .data ) + SIZEOF( .data ): - { - bss_start = . ; - _bss_start = . ; - *(.bss) - *(COMMON) - heap_memory = .; - . += 0x20000; - end = . ; - _end = . ; - } -} diff --git a/sysdeps/standalone/m68k/m68020/start.S b/sysdeps/standalone/m68k/m68020/start.S deleted file mode 100644 index 166605fb4f..0000000000 --- a/sysdeps/standalone/m68k/m68020/start.S +++ /dev/null @@ -1,172 +0,0 @@ -/* Copyright (C) 1994, 1996, 1997 Free Software Foundation, Inc. - Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil), - On-Line Applications Research Corporation. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The GNU Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - Note that people who make modified versions of this file are not - obligated to grant this special exception for their modified - versions; it is their choice whether to do so. The GNU Lesser - General Public License gives permission to release a modified - version without this exception; this exception also makes it - possible to release a modified version which carries forward this - exception. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -/* entry.s - * - * This file contains the entry point for the application. - * The name of this entry point is compiler dependent. - * It jumps to the BSP which is responsible for performing - * all initialization. - */ - - .text - .globl start | Default entry point - .globl _start | Default entry point - .globl M68Kvec | Vector Table - .globl _M68Kvec | Vector Table - -start: -_start: -M68Kvec: | standard location for vectors -_M68Kvec: | standard location for vectors - nop | for linkers with problem - | using location zero as entry - jmp around - .space 4088 | to avoid initial intr stack - | from 135BUG on MVME13? as entry - | and start code at 0x4000 -around: - move.w %sr,initial_sr | save initial values - movec %isp,%a0 - movel %a0,initial_isp - movec %usp,%a0 - movel %a0,initial_usp - movec %msp,%a0 - movel %a0,initial_msp - oriw #0x0700,%sr | INTERRUPTS OFF!!! - - - - | - | zero out uninitialized data area - | -zerobss: - moveal #end,%a0 | find end of .bss - moveal #_bss_start,%a1 | find beginning of .bss - movel #0,%d0 - -loop: movel #0,%a1@+ | to zero out uninitialized - cmpal %a0,%a1 - jlt loop | loop until _end reached - - movel #heap_size,__C_heap_size | set ___C_heap_size - movel #heap_memory,__C_heap_start | set ___C_heap_start - moveal #interrupt_stack_end,%a0 | set interrupt stack pointer - movec %a0,%isp - moveal #stack_end,%a0 | set master stack pointer - movec %a0,%msp - moveal #stack_end,%a6 | set base pointer - movw #0x3000,%sr | SUPV MODE,INTERRUPTS ON!!! - -#ifdef NEED_UNDERSCORES - jsr __Board_Initialize | initialize the board -#else - jsr _Board_Initialize | initialize the board -#endif - - move.l #0,%sp@- | envp = NULL - move.l #0,%sp@- | argv = NULL - move.l #0,%sp@- | argc = NULL -#ifdef NEED_UNDERSCORES - jsr ___libc_init | initialize the library and - | call main -#else - jsr __libc_init | initialize the library and - | call main -#endif - add.l #12,%sp - - move.l #0,%sp@- | argc = NULL - jsr __exit | call the Board specific exit - addq.l #4,%sp - - move.l initial_isp,%a0 | if __exit returns then we can - movec %a0,%isp | restore the initial values - move.l initial_usp,%a0 - movec %a0,%usp - move.l initial_msp,%a0 - movec %a0,%msp - move.w initial_sr,%sr - rts - - - .bss - -/* - * So initial stack registers and status register can be saved. - */ - -#define DECLARE_SPACE(_name,_space,_align) \ - .globl _name ; \ - .align _align ; \ -_name##: .space _space - -#define DECLARE_LABEL(_name) \ - .globl _name ; \ -_name##: - -#define DECLARE_PTR(_name) DECLARE_SPACE(_name,4,2) -#define DECLARE_U32(_name) DECLARE_SPACE(_name,4,2) -#define DECLARE_U16(_name) DECLARE_SPACE(_name,2,1) - -DECLARE_U32(initial_isp) -DECLARE_U32(initial_msp) -DECLARE_U32(initial_usp) -DECLARE_U16(initial_sr) - -/* - * Require environment stuff - */ - -DECLARE_LABEL(_environ) -DECLARE_PTR(environ) - -DECLARE_LABEL(__errno) -DECLARE_LABEL(_errno) -DECLARE_U32(errno) - -/* - * Stack Size and Space - */ - - .set stack_size, 0x20000 - -DECLARE_SPACE(stack_memory,stack_size,4) -DECLARE_LABEL(stack_end) - -DECLARE_SPACE(interrupt_stack_memory,0x1000,4) -DECLARE_LABEL(interrupt_stack_end) |