diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mvme2307/startup')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme2307/startup/Makefile.in | 71 | ||||
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme2307/startup/bspclean.c | 31 | ||||
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c | 159 | ||||
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme2307/startup/linkcmds | 201 | ||||
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme2307/startup/main.c | 108 | ||||
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme2307/startup/setvec.c | 58 |
6 files changed, 628 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme2307/startup/Makefile.in b/c/src/lib/libbsp/powerpc/mvme2307/startup/Makefile.in new file mode 100644 index 0000000000..6287d10133 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/Makefile.in @@ -0,0 +1,71 @@ +# +# $Id$ +# + +@SET_MAKE@ +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +top_builddir = ../../../.. +subdir = libbsp/powerpc/mvme2307/startup + +RTEMS_ROOT = @RTEMS_ROOT@ +PROJECT_ROOT = @PROJECT_ROOT@ + +VPATH = @srcdir@:@srcdir@/../../../shared + +PGM=${ARCH}/startup.rel + +# C source names, if any, go here -- minus the .c +C_PIECES=bspclean bsplibc bsppost bspstart main sbrk setvec +C_FILES=$(C_PIECES:%=%.c) +C_O_FILES=$(C_PIECES:%=${ARCH}/%.o) + +H_FILES= + +# Assembly source names, if any, go here -- minus the .S +S_PIECES= +S_FILES=$(S_PIECES:%=%.S) +S_O_FILES=$(S_FILES:%.S=${ARCH}/%.o) + +SRCS=linkcmds $(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES) +OBJS=$(C_O_FILES) $(CC_O_FILES) $(S_O_FILES) + +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg +include $(RTEMS_ROOT)/make/leaf.cfg + +INSTALL_CHANGE = @INSTALL_CHANGE@ + +# +# (OPTIONAL) Add local stuff here using += +# + +DEFINES += +CPPFLAGS += +CFLAGS += + +LD_PATHS += +LD_LIBS += +LDFLAGS += + +# +# Add your list of files to delete here. The config files +# already know how to delete some stuff, so you may want +# to just run 'make clean' first to see what gets missed. +# 'make clobber' already includes 'make clean' +# + +CLEAN_ADDITIONS += +CLOBBER_ADDITIONS += + +${PGM}: ${SRCS} ${OBJS} + $(make-rel) + +all: ${ARCH} $(SRCS) $(PGM) + $(INSTALL_CHANGE) $(srcdir)/linkcmds $(PROJECT_RELEASE)/lib + +# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile +install: all + +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/powerpc/mvme2307/startup/bspclean.c b/c/src/lib/libbsp/powerpc/mvme2307/startup/bspclean.c new file mode 100644 index 0000000000..83360a71df --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/bspclean.c @@ -0,0 +1,31 @@ +/* bsp_cleanup() + * + * This routine normally is part of start.s and usually returns + * control to a monitor. + * + * INPUT: NONE + * + * OUTPUT: NONE + * + * COPYRIGHT (c) 1989-1998. + * 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 <rtems.h> +#include <rtems/score/cpu.h> +#include <bsp.h> + +void bsp_cleanup( void ) +{ + /* disable raven interrupts */ + set_interrupt_task_priority(15); + /* exit to PPCBUG */ + asm volatile ( "li 10,99; sc" : : : "r10"); +} diff --git a/c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c new file mode 100644 index 0000000000..a592cd0bc3 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c @@ -0,0 +1,159 @@ +/* + * This set of routines starts the application. It includes application, + * board, and monitor specific initialization and configuration. + * The generic CPU dependent initialization has been performed + * before any of these are invoked. + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * All rights 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 <bsp.h> +#include <rtems/libio.h> + +#include <libcsupport.h> + +#include <string.h> +#include <fcntl.h> + +/* + * The original table from the application and our copy of it with + * some changes. + */ + +rtems_configuration_table BSP_Configuration; + +rtems_cpu_table Cpu_table; + + + +/* + * Use the shared implementations of the following routines + */ + +void bsp_postdriver_hook(void); +void bsp_libc_init( void *, unsigned32, int ); + +/* + * bsp_pretasking_hook + * + * BSP pretasking hook. Called just before drivers are initialized. + * Used to setup libc and install any BSP extensions. + */ + +void bsp_pretasking_hook(void) +{ + extern int end; + rtems_unsigned32 heap_start; + rtems_unsigned32 heap_size; + rtems_isr_entry old_handler; + rtems_status_code sc; + + heap_start = (rtems_unsigned32) &end; + if (heap_start & (CPU_ALIGNMENT-1)) { + heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); + } + + heap_size = BSP_Configuration.work_space_start - (void *)&end; + heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */ + + bsp_libc_init((void *) heap_start, heap_size, 0); + + sc = interrupt_controller_init(); + + + +#ifdef RTEMS_DEBUG + rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); +#endif + +} + +/* + * bsp_start + * + * This routine does the bulk of the system initialization. + */ + +void bsp_start( void ) +{ + unsigned char *work_space_start; + unsigned32 RAM_end = 0; + +#if 1 + /* + * Set MSR to show vectors at 0 XXX + */ + rtems_unsigned32 msr_value; + + _CPU_MSR_Value( msr_value ); + msr_value &= ~PPC_MSR_EP; + _CPU_MSR_SET( msr_value ); +#endif + + /* + * Set up our hooks + * Make sure libc_init is done before drivers initialized so that + * they can use atexit() + */ + + Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ + Cpu_table.postdriver_hook = bsp_postdriver_hook; + + Cpu_table.interrupt_stack_size = (12 * 1024); + + /* + * The monitor likes the exception table to be at 0x0. + */ + + Cpu_table.exceptions_in_RAM = TRUE; + + /* + #if defined(RTEMS_POSIX_API) + BSP_Configuration.work_space_size *= 3; + #endif + */ + + /* from PSIM - why? */ + BSP_Configuration.work_space_size += 1024; + + /* determine memory size */ + switch (Falcon_MEMCR.MemSize) { + case RAM_16_MB: + RAM_end = 16 * 1024 * 1024; + break; + case RAM_32_MB: + RAM_end = 32 * 1024 * 1024; + break; + case RAM_64_MB: + RAM_end = 64 * 1024 * 1024; + break; + case RAM_128_MB: + RAM_end = 128 * 1024 * 1024; + break; + } + RAM_end -= 1024 * 1024; /* reserve memory for PPCBUG */ + work_space_start = + (unsigned char *)RAM_end - BSP_Configuration.work_space_size; + + if ( work_space_start <= (unsigned char *)&end ) { + printk( "bspstart: Not enough RAM!!!\n" ); + bsp_cleanup(); + } + + BSP_Configuration.work_space_start = work_space_start; + + /* + * Account for the console's resources + */ + + console_reserve_resources( &BSP_Configuration ); + +} diff --git a/c/src/lib/libbsp/powerpc/mvme2307/startup/linkcmds b/c/src/lib/libbsp/powerpc/mvme2307/startup/linkcmds new file mode 100644 index 0000000000..396ab3ff78 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/linkcmds @@ -0,0 +1,201 @@ +/* + * + * COPYRIGHT (c) 1989-1998. + * 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 found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", + "elf32-powerpc") +OUTPUT_ARCH(powerpc) +ENTRY(_start) + /*SEARCH_DIR(/usr1/gnu/cross/powerpc-unknown-eabi//powerpc-unknown-eabi/lib); */ +/* Do we need any of these for elf? + __DYNAMIC = 0; */ +MEMORY + { + /* VECTORS : ORIGIN = 0x0, LENGTH = 0x4000 */ + /* reserve top 1M for PPCBUG */ + RAM : ORIGIN = 0x4000, LENGTH = 63M - 0x4000 + } + +SECTIONS +{ +/* + PROVIDE(ppcbug_reset = 0xfff04000); + PROVIDE(ppcbug_general = 0xfff04120); + .vectors 0x00000100 : + { + *(.vectors) + } >VECTORS +*/ + + /* Read-only sections, merged into text segment: */ + /* . = 0x40000 + SIZEOF_HEADERS; */ + . = 0x4000; + .interp : { *(.interp) } + .hash : { *(.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .rela.text : { *(.rela.text) } + .rela.data : { *(.rela.data) } + .rela.rodata : { *(.rela.rodata) } + .rela.got : { *(.rela.got) } + .rela.got1 : { *(.rela.got1) } + .rela.got2 : { *(.rela.got2) } + .rela.ctors : { *(.rela.ctors) } + .rela.dtors : { *(.rela.dtors) } + .rela.init : { *(.rela.init) } + .rela.fini : { *(.rela.fini) } + .rela.bss : { *(.rela.bss) } + .rela.plt : { *(.rela.plt) } + .rela.sdata : { *(.rela.sdata2) } + .rela.sbss : { *(.rela.sbss2) } + .rela.sdata2 : { *(.rela.sdata2) } + .rela.sbss2 : { *(.rela.sbss2) } + .plt : { *(.plt) } + .text : + { + PROVIDE (__text_start = .); + *(.text) + *(.gnu.linkonce.t.*) + *(.descriptors) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + } >RAM + .init : { *(.init) } >RAM + .fini : { *(.fini) } >RAM + .rodata : { *(.rodata) *(.gnu.linkonce.r*) } >RAM + .rodata1 : { *(.rodata1) } >RAM + _etext = .; + PROVIDE (etext = .); + PROVIDE (__SDATA2_START__ = .); + .sdata2 : { *(.sdata2) } >RAM + .sbss2 : { *(.sbss2) } >RAM + PROVIDE (__SBSS2_END__ = .); + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. It would + be more correct to do this: + . = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1)); + The current expression does not correctly handle the case of a + text segment ending precisely at the end of a page; it causes the + data segment to skip a page. The above expression does not have + this problem, but it will currently (2/95) cause BFD to allocate + a single segment, combining both text and data, for this case. + This will prevent the text segment from being shared among + multiple executions of the program; I think that is more + important than losing a page of the virtual address space (note + that no actual memory is lost; the page which is skipped can not + be referenced). */ + /* . = ALIGN(8) + 0x40000; */ + .data : + { + *(.data) + *(.gnu.linkonce.d.*) + CONSTRUCTORS + } >RAM + PROVIDE (__EXCEPT_START__ = .); + .gcc_except_table : { *(.gcc_except_table) } >RAM + PROVIDE (__EXCEPT_END__ = .); + + .data1 : { *(.data1) } >RAM + .got1 : { *(.got1) } >RAM + .dynamic : { *(.dynamic) } >RAM + /* Put .ctors and .dtors next to the .got2 section, so that the pointers + get relocated with -mrelocatable. Also put in the .fixup pointers. + The current compiler no longer needs this, but keep it around for 2.7.2 */ + PROVIDE (__GOT2_START__ = .); + PROVIDE (_GOT2_START_ = .); + .got2 : { *(.got2) } >RAM + PROVIDE (__GOT2_END__ = .); + PROVIDE (_GOT2_END_ = .); + + PROVIDE (__CTOR_LIST__ = .); + .ctors : { *(.ctors) } >RAM + PROVIDE (__CTOR_END__ = .); + + PROVIDE (__DTOR_LIST__ = .); + .dtors : { *(.dtors) } >RAM + PROVIDE (__DTOR_END__ = .); + + PROVIDE (__FIXUP_START__ = .); + PROVIDE (_FIXUP_START_ = .); + .fixup : { *(.fixup) } >RAM + PROVIDE (_FIXUP_END_ = .); + PROVIDE (__FIXUP_END__ = .); + + PROVIDE (__GOT_START__ = .); + PROVIDE (_GOT_START_ = .); + s.got = .; + .got : { *(.got) } >RAM + .got.plt : { *(.got.plt) } >RAM + PROVIDE (_GOT_END_ = .); + PROVIDE (__GOT_END__ = .); + + /* We want the small data sections together, so single-instruction offsets + can access them all, and initialized data all before uninitialized, so + we can shorten the on-disk segment size. */ + PROVIDE (__SDATA_START__ = .); + .sdata : { *(.sdata) } >RAM + _edata = .; + PROVIDE (edata = .); + + PROVIDE (RAM_END = 0x3f0000); + .sbss : + { + PROVIDE (__sbss_start = .); + *(.sbss) + *(.scommon) + PROVIDE (__sbss_end = .); + } >RAM + PROVIDE (__SBSS_END__ = .); + + .bss : + { + PROVIDE (__bss_start = .); + *(.dynbss) + *(.bss) + *(COMMON) + } >RAM + . = ALIGN(8) + 0x8000; + PROVIDE(__stack = .); + PROVIDE (_end = .); + PROVIDE (end = .); + + /* These are needed for ELF backends which have not yet been + converted to the new style linker. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + /* These must appear regardless of . */ +} diff --git a/c/src/lib/libbsp/powerpc/mvme2307/startup/main.c b/c/src/lib/libbsp/powerpc/mvme2307/startup/main.c new file mode 100644 index 0000000000..01a7c9f5c5 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/main.c @@ -0,0 +1,108 @@ +/* + * A simple main which can be used on any embedded target. + * + * This style of initialization insures that the C++ global + * constructors are executed after RTEMS is initialized. + * + * Thanks to Chris Johns <cjohns@plessey.com.au> for this idea. + * + * COPYRIGHT (c) 1989-1998. + * 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 <bsp.h> + +char *rtems_progname; + +extern void bsp_start( void ); +extern void bsp_cleanup( void ); + +extern rtems_configuration_table Configuration; +extern rtems_configuration_table BSP_Configuration; +extern rtems_cpu_table Cpu_table; + +rtems_interrupt_level bsp_isr_level; + +int main(int argc, char **argv); + +int boot_card(int argc, char **argv) +{ + int status; + + /* + * Set default values for the CPU Table fields all ports must have. + * These values can be overridden in bsp_start() but they are + * right most of the time. + */ + + Cpu_table.pretasking_hook = NULL; + Cpu_table.predriver_hook = NULL; + Cpu_table.postdriver_hook = NULL; + Cpu_table.idle_task = NULL; + Cpu_table.do_zero_of_workspace = TRUE; + Cpu_table.interrupt_stack_size = RTEMS_MINIMUM_STACK_SIZE; + Cpu_table.extra_mpci_receive_server_stack = 0; + Cpu_table.stack_allocate_hook = NULL; + Cpu_table.stack_free_hook = NULL; + + + /* + * Copy the configuration table so we and the BSP wants to change it. + */ + + BSP_Configuration = Configuration; + + /* + * The atexit hook will be before the static destructor list's entry + * point. + */ + + bsp_start(); + + /* + * Initialize RTEMS but do NOT start multitasking. + */ + + bsp_isr_level = + rtems_initialize_executive_early( &BSP_Configuration, &Cpu_table ); + + /* + * Call main() and get the global constructors invoked if there + * are any. + */ + + status = main(argc, argv); + + /* + * Perform any BSP specific shutdown actions. + */ + + bsp_cleanup(); + + /* + * Now return to the start code. + */ + + return status; +} + +int main(int argc, char **argv) +{ + + if ((argc > 0) && argv && argv[0]) + rtems_progname = argv[0]; + else + rtems_progname = "RTEMS"; + + rtems_initialize_executive_late( bsp_isr_level ); + + return 0; +} + diff --git a/c/src/lib/libbsp/powerpc/mvme2307/startup/setvec.c b/c/src/lib/libbsp/powerpc/mvme2307/startup/setvec.c new file mode 100644 index 0000000000..dcdd94c665 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/setvec.c @@ -0,0 +1,58 @@ +/* set_vector + * + * This routine installs an interrupt vector on the target Board/CPU. + * This routine is allowed to be as board dependent as necessary. + * + * INPUT: + * handler - interrupt handler entry point + * vector - vector number + * type - 0 indicates raw hardware connect + * 1 indicates RTEMS interrupt connect + * + * RETURNS: + * address of previous interrupt handler + * + * Author: Andrew Bray <andy@i-cubed.co.uk> + * + * COPYRIGHT (c) 1995 by i-cubed ltd. + * + * To anyone who acknowledges that this file is provided "AS IS" + * without any express or implied warranty: + * permission to use, copy, modify, and distribute this file + * for any purpose is hereby granted without fee, provided that + * the above copyright notice and this notice appears in all + * copies, and that the name of i-cubed limited not be used in + * advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * i-cubed limited makes no representations about the suitability + * of this software for any purpose. + * + * Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c: + * + * COPYRIGHT (c) 1989-1998. + * 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 found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> + +rtems_isr_entry set_vector( /* returns old vector */ + rtems_isr_entry handler, /* isr routine */ + rtems_vector_number vector, /* vector number */ + int type /* RTEMS or RAW intr */ +) +{ + rtems_isr_entry previous_isr; + + rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr ); + + return previous_isr; +} + |