diff options
Diffstat (limited to 'c/src/lib/libbsp/sh/gensh2/start')
-rw-r--r-- | c/src/lib/libbsp/sh/gensh2/start/Makefile.in | 70 | ||||
-rw-r--r-- | c/src/lib/libbsp/sh/gensh2/start/start.S | 198 | ||||
-rw-r--r-- | c/src/lib/libbsp/sh/gensh2/start/start.ram | 199 | ||||
-rw-r--r-- | c/src/lib/libbsp/sh/gensh2/start/start.rom | 94 |
4 files changed, 561 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sh/gensh2/start/Makefile.in b/c/src/lib/libbsp/sh/gensh2/start/Makefile.in new file mode 100644 index 0000000000..6e7cdeba44 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh2/start/Makefile.in @@ -0,0 +1,70 @@ +## +## $Id$ +## + +@SET_MAKE@ +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +top_builddir = ../../.. +subdir = sh/gensh2/start + +RTEMS_ROOT = @RTEMS_ROOT@ +PROJECT_ROOT = @PROJECT_ROOT@ + +VPATH = @srcdir@ + +PGMS = ${ARCH}/start.o + +# C source names, if any, go here -- minus the .c +C_PIECES = +C_FILES = $(C_PIECES:%=%.c) +C_O_FILES = $(C_PIECES:%=${ARCH}/%.o) + +H_FILES = + +# Assembly source names, if any, go here -- minus the .S +S_PIECES = start +S_FILES = $(S_PIECES:%=%.S) +S_O_FILES = $(S_FILES:%.S=${ARCH}/%.o) + +SRCS = $(C_FILES) $(H_FILES) $(S_FILES) +OBJS = $(C_O_FILES) $(S_O_FILES) + +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg +include $(RTEMS_ROOT)/make/leaf.cfg + +INSTALL_CHANGE = @INSTALL_CHANGE@ + +# +# (OPTIONAL) Add local stuff here using += +# + +DEFINES += +CPPFLAGS += +CFLAGS += + +LD_PATHS += +LD_LIBS += +LDFLAGS += + +# force optimization, otherwise start.o will not work +# CFLAGS_PROFILE= +# CFLAGS_DEBUG=-O3 +# CFLAGS_OPTIMIZE=-O3 + +# +# Add your list of files to delete here. The config files +# already know how to delete some stuff, so you may want +# to just run 'make clean' first to see what gets missed. +# 'make clobber' already includes 'make clean' +# + +CLEAN_ADDITIONS += +CLOBBER_ADDITIONS += + +all: ${ARCH} $(SRCS) $(OBJS) $(PGM) + @$(INSTALL_VARIANT) -m 755 ${PGMS} $(PROJECT_RELEASE)/lib + +Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status + cd $(top_builddir) \ + && CONFIG_FILES=$(subdir)/$@ CONFIG_HEADERS= $(SHELL) ./config.status diff --git a/c/src/lib/libbsp/sh/gensh2/start/start.S b/c/src/lib/libbsp/sh/gensh2/start/start.S new file mode 100644 index 0000000000..f06b284f50 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh2/start/start.S @@ -0,0 +1,198 @@ +/* + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program 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. + * + * Modified to reflect Hitachi EDK SH7045F: + * John M. Mills (jmills@tga.com) + * TGA Technologies, Inc. + * 100 Pinnacle Way, Suite 140 + * Norcross, GA 30071 U.S.A. + * + * + * This modified file may be copied and distributed in accordance + * the above-referenced license. It is provided for critique and + * developmental purposes without any warranty nor representation + * by the authors or by TGA Technologies. + * + * COPYRIGHT (c) 1999. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include "asm.h" + + BEGIN_CODE + PUBLIC(start) + +SYM (start): + ! install the stack pointer + mov.l stack_k,r15 + +#ifdef START_HW_INIT /* from $RTEMS_BSP.cfg */ + ! Initialize minimal hardware + mov.l hw_init_k, r0 + jsr @r0 + nop !debug dead-slot target +#endif /* START_HW_INIT */ + + ! zero out bss + mov.l edata_k,r0 + mov.l end_k,r1 + mov #0,r2 +0: + mov.l r2,@r0 + add #4,r0 + cmp/ge r0,r1 + bt 0b + nop !debug dead-slot target + + ! copy the vector table from rom to ram + mov.l vects_k,r0 ! vectab + mov #0,r1 ! address of boot vector table + mov #0,r2 ! number of bytes copied + mov.w vects_size,r3 ! size of entries in vectab +1: + mov.l @r1+,r4 + mov.l r4,@r0 + add #4,r0 + add #1,r2 + cmp/hi r3,r2 + bf 1b + nop !debug dead-slot target + + ! overlay monitor vectors onto RTEMS table template + ! code adapted from Hitachi EDK7045F User Manual: "Copyvect.s" + mova vects_k,r0 + mov.l @r0, r1 ! Shadow vect tbl addr + stc vbr, r2 ! Original vect tbl addr + and #0, r0 + mov r0, r4 ! 0 in r4 and r0 + +!trapa #32 + or #0x80, r0 + mov.l @(r0,r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!cpu addr err + or #0x24, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!ill slot + or #0x18, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!ill inst + or #0x10, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!nmi + or #0x2c, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!User brk + or #0x30, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!sci0 err + or #0x80, r0 + rotl r0 + rotl r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 +!sci rx + or #0x81, r0 + rotl r0 + rotl r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + + stc vbr,r3 ! capture copy of monitor vbr + mov.l vbrtemp_k,r0 + mov.l r3, @r0 + mov.l vects_k,r0 ! point vbr to vectab + ldc r0,vbr + + ! call the mainline + mov #0,r4 ! argc + mov #0,r5 ! argv - can place in dead slot + mov.l main_k,r0 + jsr @r0 + nop !debug dead-slot target + + ! call exit + mov r0,r4 + mov.l exit_k,r0 + or r0,r0 + jsr @r0 + nop !debug dead-slot target + + mov.l vbrtemp_k,r0 ! restore original vbr + mov.l @r0,r3 + ldc r3, vbr + trapa #13 ! UBR capture by monitor + nop !debug dead-slot target + + END_CODE + + .align 2 +stack_k: + .long SYM(stack) +edata_k: + .long SYM(edata) +end_k: + .long SYM(end) +main_k: + .long SYM(boot_card) +exit_k: + .long SYM(exit) +#ifdef START_HW_INIT /* from $RTEMS_BSP.cfg */ +hw_init_k: + .long SYM(hw_initialize) +#endif /* START_HW_INIT */ +vbrtemp_k: + .long SYM(vbrtemp) +vects_k: + .long SYM(vectab) +vects_size: + .word 255 + +#ifdef __ELF__ + .section .stack,"aw" +#else + .section .stack +#endif +SYM(stack): + .long 0xdeaddead + +#ifdef __ELF__ + .section .bss,"aw" +#else + .section .bss +#endif +SYM(vbrtemp): + .long 0x0 + diff --git a/c/src/lib/libbsp/sh/gensh2/start/start.ram b/c/src/lib/libbsp/sh/gensh2/start/start.ram new file mode 100644 index 0000000000..1bbcc9daf2 --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh2/start/start.ram @@ -0,0 +1,199 @@ +/* + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program 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. + * + * + * COPYRIGHT (c) 1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * Modified to reflect Hitachi EDK SH7045F: + * John M. Mills (jmills@tga.com) + * TGA Technologies, Inc. + * 100 Pinnacle Way, Suite 140 + * Norcross, GA 30071 U.S.A. + * + * + * This modified file may be copied and distributed in accordance + * the above-referenced license. It is provided for critique and + * developmental purposes without any warranty nor representation + * by the authors or by TGA Technologies. + * + * $Id$ + */ + +#include "asm.h" + + BEGIN_CODE + PUBLIC(start) + +SYM (start): + ! install the stack pointer + mov.l stack_k,r15 + +#ifdef START_HW_INIT /* from $RTEMS_BSP.cfg */ + ! Initialize minimal hardware + mov.l hw_init_k, r0 + jsr @r0 + nop !debug dead-slot target +#endif /* START_HW_INIT */ + + ! zero out bss + mov.l edata_k,r0 + mov.l end_k,r1 + mov #0,r2 +0: + mov.l r2,@r0 + add #4,r0 + cmp/ge r0,r1 + bt 0b + nop !debug dead-slot target + + ! copy the vector table from rom to ram + mov.l vects_k,r0 ! vectab + mov #0,r1 ! address of boot vector table + mov #0,r2 ! number of bytes copied + mov.w vects_size,r3 ! size of entries in vectab +1: + mov.l @r1+,r4 + mov.l r4,@r0 + add #4,r0 + add #1,r2 + cmp/hi r3,r2 + bf 1b + nop !debug dead-slot target + + ! overlay monitor vectors onto RTEMS table template + ! code adapted from Hitachi EDK7045F User Manual: "Copyvect.s" + mova vects_k,r0 + mov.l @r0, r1 ! Shadow vect tbl addr + stc vbr, r2 ! Original vect tbl addr + and #0, r0 + mov r0, r4 ! 0 in r4 and r0 + +!trapa #32 + or #0x80, r0 + mov.l @(r0,r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!cpu addr err + or #0x24, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!ill slot + or #0x18, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!ill inst + or #0x10, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!nmi + or #0x2c, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!User brk + or #0x30, r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 + +!sci0 err + or #0x80, r0 + rotl r0 + rotl r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + mov r4, r0 +!sci rx + or #0x81, r0 + rotl r0 + rotl r0 + mov.l @(r0, r2), r3 + mov.l r3, @(r0, r1) + + stc vbr,r3 ! capture copy of monitor vbr + mov.l vbrtemp_k,r0 + mov.l r3, @r0 + mov.l vects_k,r0 ! point vbr to vectab + ldc r0,vbr + + ! call the mainline + mov #0,r4 ! argc + mov #0,r5 ! argv - can place in dead slot + mov.l main_k,r0 + jsr @r0 + nop !debug dead-slot target + + ! call exit + mov r0,r4 + mov.l exit_k,r0 + or r0,r0 + jsr @r0 + nop !debug dead-slot target + + mov.l vbrtemp_k,r0 ! restore original vbr + mov.l @r0,r3 + ldc r3, vbr + trapa #13 ! UBR capture by monitor + nop !debug dead-slot target + + END_CODE + + .align 2 +stack_k: + .long SYM(stack) +edata_k: + .long SYM(edata) +end_k: + .long SYM(end) +main_k: + .long SYM(boot_card) +exit_k: + .long SYM(exit) +#ifdef START_HW_INIT /* from $RTEMS_BSP.cfg */ +hw_init_k: + .long SYM(hw_initialize) +#endif /* START_HW_INIT */ +vbrtemp_k: + .long SYM(vbrtemp) +vects_k: + .long SYM(vectab) +vects_size: + .word 255 + +#ifdef __ELF__ + .section .stack,"aw" +#else + .section .stack +#endif +SYM(stack): + .long 0xdeaddead + +#ifdef __ELF__ + .section .bss,"aw" +#else + .section .bss +#endif +SYM(vbrtemp): + .long 0x0 + diff --git a/c/src/lib/libbsp/sh/gensh2/start/start.rom b/c/src/lib/libbsp/sh/gensh2/start/start.rom new file mode 100644 index 0000000000..9deeb53fed --- /dev/null +++ b/c/src/lib/libbsp/sh/gensh2/start/start.rom @@ -0,0 +1,94 @@ +/* + * Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and + * Bernd Becker (becker@faw.uni-ulm.de) + * + * COPYRIGHT (c) 1997-1998, FAW Ulm, Germany + * + * This program 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. + * + * + * COPYRIGHT (c) 1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include "asm.h" + + BEGIN_CODE + PUBLIC(start) +SYM (start): + ! install the stack pointer + mov.l stack_k,r15 + + ! zero out bss + mov.l edata_k,r0 + mov.l end_k,r1 + mov #0,r2 +0: + mov.l r2,@r0 + add #4,r0 + cmp/ge r0,r1 + bt 0b + + ! copy the vector table from rom to ram + mov.l vects_k,r0 ! vectab + mov #0,r1 ! address of boot vector table + mov #0,r2 | number of bytes copied + mov.w vects_size,r3 ! size of entries in vectab +1: + mov.l @r1+,r4 + mov.l r4,@r0 + add #4,r0 + add #1,r2 + cmp/hi r3,r2 + bf 1b + + mov.l vects_k,r0 ! update vbr to point to vectab + ldc r0,vbr + + ! call the mainline + mov #0,r4 ! argc + mov.l main_k,r0 + jsr @r0 + mov #0,r5 ! argv + + ! call exit + mov r0,r4 + mov.l exit_k,r0 + jsr @r0 + or r0,r0 + + END_CODE + + .align 2 +stack_k: + .long SYM(stack) +edata_k: + .long SYM(edata) +end_k: + .long SYM(end) +main_k: + .long SYM(boot_card) +exit_k: + .long SYM(exit) + +vects_k: + .long SYM(vectab) +vects_size: + .word 255 + +#ifdef __ELF__ + .section .stack,"aw" +#else + .section .stack +#endif +SYM(stack): + .long 0xdeaddead |