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2000-09-13 Emmanuel Raguet <raguet@crf.canon.fr>

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* vegaplus BSP submitted by Emmanuel Raguet <raguet@crf.canon.fr> and
	Eric Valette <valette@crf.canon.fr>.
	* vegaplus/bsp_specs, configure.in, console/Makefile.am,
	include/Makefile.am, include/bsp.h, include/registers.h,
	irq/Makefile.am, irq/bsp_irq_asm.S, irq/bsp_irq_init.c, irq/irq.c,
	irq/irq.h, start/Makefile.am, start/start.S, startup/Makefile.am,
	startup/bspstart.c, startup/exit.c, startup/linkcmds,
	wrapup/Makefile.am: New files.
This commit is contained in:
Joel Sherrill
2000-09-13 13:45:05 +00:00
parent 943399b715
commit 456456632d
27 changed files with 2616 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
c/src/lib/libbsp/arm/vegaplus/.cvsignore Normal file
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Makefile
Makefile.in
aclocal.m4
config.cache
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
missing
mkinstalldirs

4
c/src/lib/libbsp/arm/vegaplus/ChangeLog Normal file
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2000-09-13 Emmanuel Raguet <raguet@crf.canon.fr>
* vegaplus BSP submitted by Emmanuel Raguet <raguet@crf.canon.fr> and
Eric Valette <valette@crf.canon.fr>.

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c/src/lib/libbsp/arm/vegaplus/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
ACLOCAL_AMFLAGS = -I $(RTEMS_TOPdir)/aclocal
# wrapup is the one that actually builds and installs the library
# from the individual .rel files built in other directories
SUBDIRS = . include console startup start irq wrapup
EXTRA_DIST = bsp_specs
include $(top_srcdir)/../../../../../../automake/subdirs.am
include $(top_srcdir)/../../../../../../automake/local.am

23
c/src/lib/libbsp/arm/vegaplus/bsp_specs Normal file
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%rename cpp old_cpp
%rename lib old_lib
%rename endfile old_endfile
%rename startfile old_startfile
%rename link old_link
*cpp:
%(old_cpp) %{qrtems: -D__embedded__ -DUSE_ENHANCED_INTR_API} -Asystem(embedded)
*lib:
%{!qrtems: %(old_lib)} %{qrtems: --start-group \
%{!qrtems_debug: -lrtemsall} %{qrtems_debug: -lrtemsall_g} \
-lc -lgcc --end-group \
%{!qnolinkcmds: -T linkcmds%s}}
*startfile:
%{!qrtems: %(old_startfile)} %{qrtems: \
%{!qrtems_debug: start.o%s crtbegin.o%s} \
%{qrtems_debug: start_g.o%s crtbegin.o%s}}
*link:
%{!qrtems: %(old_link)} %{qrtems: -Qy -dp -Bstatic -T linkcmds%s -e _start}

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c/src/lib/libbsp/arm/vegaplus/configure.in Normal file
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dnl Process this file with autoconf to produce a configure script.
dnl
dnl $Id$
AC_PREREQ(2.13)
AC_INIT(bsp_specs)
RTEMS_TOP(../../../../../..)
AC_CONFIG_AUX_DIR(../../../../../..)
RTEMS_CANONICAL_TARGET_CPU
AM_INIT_AUTOMAKE(rtems-c-src-lib-libbsp-arm-vegaplus,$RTEMS_VERSION,no)
AM_MAINTAINER_MODE
RTEMS_PROG_CC_FOR_TARGET
RTEMS_CANONICALIZE_TOOLS
RTEMS_ENV_RTEMSBSP
RTEMS_CHECK_CUSTOM_BSP(RTEMS_BSP)
RTEMS_CHECK_BSP_CACHE(RTEMS_BSP)
RTEMS_CHECK_NETWORKING
RTEMS_CANONICAL_HOST
dnl if this is an i386, does gas have good code16 support?
RTEMS_I386_GAS_CODE16
AM_CONDITIONAL(RTEMS_GAS_CODE16,test "$RTEMS_GAS_CODE16" = "yes");
AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
AC_CONFIG_SUBDIRS(tools)
AC_SUBST(RTEMS_BSP)
RTEMS_PROJECT_ROOT
# Explicitly list all Makefiles here
AC_OUTPUT(
Makefile
console/Makefile
include/Makefile
irq/Makefile
start/Makefile
startup/Makefile
wrapup/Makefile)

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c/src/lib/libbsp/arm/vegaplus/console/.cvsignore Normal file
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Makefile
Makefile.in

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c/src/lib/libbsp/arm/vegaplus/console/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
VPATH = @srcdir@/../../shared/comm:@srcdir@/../../shared/io
PGM = $(ARCH)/console.rel
C_FILES = uart.c console.c printk.c
C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
H_FILES = uart.h bspio.h
console_rel_OBJECTS = $(C_FILES:%.c=$(ARCH)/%.o)
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../../../../../../automake/lib.am
#
# (OPTIONAL) Add local stuff here using +=
#
$(PGM): $(console_rel_OBJECTS)
$(make-rel)
all: $(ARCH) $(console_rel_OBJECTS) $(PGM)
.PRECIOUS: $(PGM)
include $(top_srcdir)/../../../../../../automake/local.am

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c/src/lib/libbsp/arm/vegaplus/include/.cvsignore Normal file
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Makefile
Makefile.in

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c/src/lib/libbsp/arm/vegaplus/include/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
H_FILES = bsp.h registers.h
$(PROJECT_INCLUDE):
$(mkinstalldirs) $@
$(PROJECT_INCLUDE)/%.h: %.h
$(INSTALL_DATA) $< $@
$(PROJECT_INCLUDE)/coverhd.h: $(top_srcdir)/../../shared/include/coverhd.h
$(INSTALL_DATA) $< $@
PREINSTALL_FILES += $(PROJECT_INCLUDE) $(H_FILES:%.h=$(PROJECT_INCLUDE)/%.h)
all: $(PREINSTALL_FILES)
EXTRA_DIST = bspio.h bsp.h uart.h registers.h
include $(top_srcdir)/../../../../../../automake/local.am

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c/src/lib/libbsp/arm/vegaplus/include/bsp.h Normal file
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/*-------------------------------------------------------------------------+
| bsp.h - ARM BSP
+--------------------------------------------------------------------------+
| This include file contains definitions related to the ARM BSP.
+--------------------------------------------------------------------------+
|
| Copyright (c) Canon Research France SA.]
| Emmanuel Raguet, mailto:raguet@crf.canon.fr
|
| 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.
|
| $Id$
+--------------------------------------------------------------------------*/
#ifndef __BSP_H_
#define __BSP_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <rtems.h>
#include <iosupp.h>
#include <console.h>
#include <clockdrv.h>
#endif /* __BSP_H_ */
/* end of include file */

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c/src/lib/libbsp/arm/vegaplus/include/registers.h Normal file
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c/src/lib/libbsp/arm/vegaplus/irq/.cvsignore Normal file
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Makefile
Makefile.in

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c/src/lib/libbsp/arm/vegaplus/irq/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
VPATH = @srcdir@:@srcdir@/../../shared/irq
PGM = $(ARCH)/irq.rel
C_FILES = irq.c irq_init.c bsp_irq_init.c
S_FILES = irq_asm.S bsp_irq_asm.S
H_FILES = irq.h
C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
S_O_FILES = $(S_FILES:%.S=$(ARCH)/%.o)
irq_rel_OBJECTS = $(C_O_FILES) $(S_O_FILES)
$(PROJECT_INCLUDE):
$(mkinstalldirs) $@
$(PROJECT_INCLUDE)/%.h: %.h
$(INSTALL_DATA) $< $@
PREINSTALL_FILES += $(PROJECT_INCLUDE) $(H_FILES:%.h=$(PROJECT_INCLUDE)/%.h)
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../../../../../../automake/lib.am
#
# (OPTIONAL) Add local stuff here using +=
#
$(PGM): $(startup_rel_OBJECTS)
$(make-rel)
all: $(PREINSTALL_FILES) $(ARCH) $(irq_rel_OBJECTS) $(PGM)
.PRECIOUS: $(PGM)
EXTRA_DIST = irq.c bsp_irq_init.c bsp_irq_asm.S
include $(top_srcdir)/../../../../../../automake/local.am

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c/src/lib/libbsp/arm/vegaplus/irq/bsp_irq_asm.S Normal file
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/* bsp_irq_asm.S
*
* This file contains the implementation of the IRQ handler
* for a specific BSP
*
* CopyRight (C) 2000 Canon Research France SA.
* Emmanuel Raguet, mailto:raguet@crf.canon.fr
*
* 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.
*
*/
#define __asm__
#include <registers.h>
/*
* Function to obtain, execute an IT handler and acknowledge the IT
*/
.globl ExecuteITHandler
ExecuteITHandler :
ldr r0, =INTPHAI3 /* read the vector number */
ldr r0, [r0]
ldr r0, [r0] /* extract the IT handler @ */
/*
* re-enable interrupts at processor level as the current
* interrupt source is now masked via VEGA logic
*/
mrs r1, cpsr
and r1, r1, #0xFFFFFF3F
msr cpsr, r1
stmdb sp!,{lr}
ldr lr, =IRQ_return /* prepare the return from handler */
mov pc, r0 /* EXECUTE INT HANDLER */
IRQ_return:
ldmia sp!,{lr}
ldr r2, =INTSTAT3 /* Ack the interrupt */
ldr r2, [r2]
ldr r1, =INTACK3
str r2, [r1]
/*
* disable interrupts_again and switch back to SVC mode
*/
mrs r0, cpsr
orr r0, r0, #0xc3
msr cpsr, r0
b ReturnFromHandler /* return to ISR handler */
/*
* Function to acknowledge the IT controller
*/
.globl AckControler
AckControler:
ldr r0, =INTEOI3
mov r1, #EOI
str r1, [r0]
b ReturnFromAck /* return to ISR handler */

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c/src/lib/libbsp/arm/vegaplus/irq/bsp_irq_init.c Normal file
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/* irq_init.c
*
* This file contains the implementation of rtems initialization
* related to interrupt handling.
*
* CopyRight (C) 2000 Canon Research Centre France SA.
* Emmanuel Raguet, mailto:raguet@crf.canon.fr
*
* 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 <irq.h>
#include <bsp.h>
#include <registers.h>
void BSP_rtems_irq_mngt_init() {
/* Initialize the vector table address in internal RAM */
Regs[INTTAB] = VECTOR_TABLE;
/* Initialize the GLOBAL INT CONTROL register */
Regs[INTGCNTL] = 0x00;
/* Mask all the interrupts */
Regs[INTMASK] = 0xFFFF;
/* Unmask the 2 arm interrupts IRQ and FIQ on the INT controller */
Regs[INTMASKALL] = 0x0;
/* Ack pending interrupt */
while ( ( Regs[INTSTAT] & 0xF433 ) != 0 ) {
Regs[INTACK] = 0xFFFF;
Regs[INTEOI] = EOI;
}
}

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c/src/lib/libbsp/arm/vegaplus/irq/irq.c Normal file
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/* irq.c
*
* This file contains the implementation of the function described in irq.h
*
* CopyRight (C) 2000 Canon Research France SA.
* Emmanuel Raguet, mailto:raguet@crf.canon.fr
*
* 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 <bsp.h>
#include <irq.h>
#include <registers.h>
#include <rtems/score/thread.h>
#include <rtems/score/apiext.h>
/*
* This function check that the value given for the irq line
* is valid.
*/
static int isValidInterrupt(int irq)
{
if ( (irq < 0) || (irq > BSP_MAX_INT))
return 0;
return 1;
}
/*
* ------------------------ RTEMS Single Irq Handler Mngt Routines ----------------
*/
int BSP_install_rtems_irq_handler (const rtems_irq_connect_data* irq)
{
rtems_irq_hdl *HdlTable;
if (!isValidInterrupt(irq->name)) {
return 0;
}
/*
* Check if default handler is actually connected. If not issue an error.
*/
HdlTable = VECTOR_TABLE;
if (*(HdlTable + irq->name) != default_int_handler) {
return 0;
}
_CPU_ISR_Disable(level);
/*
* store the new handler
*/
*(HdlTable + irq->name) = irq->hdl;
/*
* initialize the control register for the concerned interrupt
*/
Regs[(INTCNTL0 + irq->name)] = (long)(irq->irqTrigger) | (long)(irq->irqLevel) ;
/*
* ack pending interrupt
*/
Regs[INTACK] |= (long)(1 << irq->name);
/*
* unmask at INT controler level level
*/
Regs[INTMASK] &= ~(long)(1 << irq->name);
/*
* Enable interrupt on device
*/
irq->on(irq);
_CPU_ISR_Enable(level);
return 1;
}
int BSP_remove_rtems_irq_handler (const rtems_irq_connect_data* irq)
{
rtems_irq_hdl *HdlTable;
if (!isValidInterrupt(irq->name)) {
return 0;
}
/*
* Check if the handler is actually connected. If not issue an error.
*/
HdlTable = VECTOR_TABLE;
if (*(HdlTable + irq->name) != irq->hdl) {
return 0;
}
_CPU_ISR_Disable(level);
/*
* mask at INT controller level
*/
Regs[INTMASK] |= (long)(1 << irq->name);
/*
* Disable interrupt on device
*/
irq->off(irq);
/*
* restore the default irq value
*/
*(HdlTable + irq->name) = default_int_handler;
_CPU_ISR_Enable(level);
return 1;
}
void _ThreadProcessSignalsFromIrq (CPU_Exception_frame* ctx)
{
/*
* Process pending signals that have not already been
* processed by _Thread_Displatch. This happens quite
* unfrequently : the ISR must have posted an action
* to the current running thread.
*/
if ( _Thread_Do_post_task_switch_extension ||
_Thread_Executing->do_post_task_switch_extension ) {
_Thread_Executing->do_post_task_switch_extension = FALSE;
_API_extensions_Run_postswitch();
}
}

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c/src/lib/libbsp/arm/vegaplus/irq/irq.h Normal file
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/* irq.h
*
* This include file describe the data structure and the functions implemented
* by rtems to write interrupt handlers.
*
* Copyright (c) 2000 Canon Research Centre France SA.
* Emmanuel Raguet, mailto:raguet@crf.canon.fr
*
* 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.
*
*/
#ifndef _IRQ_H_
#define _IRQ_H_
#ifdef __cplusplus
extern "C" {
#endif
/*
* Include some preprocessor value also used by assember code
*/
#include <rtems.h>
extern void default_int_handler();
/*-------------------------------------------------------------------------+
| Constants
+--------------------------------------------------------------------------*/
typedef enum {
BSP_DECT_CORE = 0,
BSP_PCM = 1,
BSP_UART = 2,
BSP_RESERVED1 = 3,
BSP_TIMER_0 = 4,
BSP_TIMER_1 = 5,
BSP_RESERVED2 = 6,
BSP_RESERVED3 = 7,
BSP_LCD = 8,
BSP_KPAD = 9,
BSP_TAD = 10,
BSP_ADC = 11,
BSP_EXT_0 = 12,
BSP_EXT_1 = 13,
BSP_EXT_2 = 14,
BSP_EXT_3 = 15,
BSP_MAX_INT = 16
} rtems_irq_symbolic_name;
#define LEVEL_EDGE_MASK 0xC0
#define LEVEL_LOW 0x00
#define LEVEL_HIGH 0x40
#define EDGE_FALLING 0x80
#define EDGE_RISING 0xC0
#define PRIO_MASK 0x07
#define LEVEL_MASK 0x07
#define MASKIRQ 0x80
#define MASKFIQ 0x40
#define END_OF_INT 0x80
#define VECTOR_TABLE 0x40
/*
* Type definition for RTEMS managed interrupts
*/
typedef unsigned char rtems_irq_level;
typedef unsigned char rtems_irq_trigger;
struct __rtems_irq_connect_data__; /* forward declaratiuon */
typedef void (*rtems_irq_hdl) (void);
typedef void (*rtems_irq_enable) (const struct __rtems_irq_connect_data__*);
typedef void (*rtems_irq_disable) (const struct __rtems_irq_connect_data__*);
typedef int (*rtems_irq_is_enabled) (const struct __rtems_irq_connect_data__*);
typedef struct __rtems_irq_connect_data__ {
/*
* IRQ line
*/
rtems_irq_symbolic_name name;
/*
* handler. See comment on handler properties below in function prototype.
*/
rtems_irq_hdl hdl;
/*
* function for enabling interrupts at device level (ONLY!).
* The BSP code will automatically enable it at i8259s level.
* RATIONALE : anyway such code has to exist in current driver code.
* It is usually called immediately AFTER connecting the interrupt handler.
* RTEMS may well need such a function when restoring normal interrupt
* processing after a debug session.
*
*/
rtems_irq_enable on;
/*
* function for disabling interrupts at device level (ONLY!).
* The code will disable it at i8259s level. RATIONALE : anyway
* such code has to exist for clean shutdown. It is usually called
* BEFORE disconnecting the interrupt. RTEMS may well need such
* a function when disabling normal interrupt processing for
* a debug session. May well be a NOP function.
*/
rtems_irq_disable off;
/*
* function enabling to know what interrupt may currently occur
* if someone manipulates the i8259s interrupt mask without care...
*/
rtems_irq_is_enabled isOn;
/*
* priority level at the vplus level
*/
rtems_irq_level irqLevel;
/*
* Trigger way : Rising or falling edge or High or low level
*/
rtems_irq_trigger irqTrigger;
} rtems_irq_connect_data;
/*-------------------------------------------------------------------------+
| Function Prototypes.
+--------------------------------------------------------------------------*/
/*
* ------------------------ RTEMS Single Irq Handler Mngt Routines ----------------
*/
/*
* function to initialize the interrupt for a specific BSP
*/
void BSP_rtems_irq_mngt_init();
/*
* function to connect a particular irq handler. This hanlder will NOT be called
* directly as the result of the corresponding interrupt. Instead, a RTEMS
* irq prologue will be called that will :
*
* 1) save the C scratch registers,
* 2) switch to a interrupt stack if the interrupt is not nested,
* 3) store the current i8259s' interrupt masks
* 4) modify them to disable the current interrupt at 8259 level (and may
* be others depending on software priorities)
* 5) aknowledge the i8259s',
* 6) demask the processor,
* 7) call the application handler
*
* As a result the hdl function provided
*
* a) can perfectly be written is C,
* b) may also well directly call the part of the RTEMS API that can be used
* from interrupt level,
* c) It only responsible for handling the jobs that need to be done at
* the device level including (aknowledging/re-enabling the interrupt at device,
* level, getting the data,...)
*
* When returning from the function, the following will be performed by
* the RTEMS irq epilogue :
*
* 1) masks the interrupts again,
* 2) restore the original i8259s' interrupt masks
* 3) switch back on the orinal stack if needed,
* 4) perform rescheduling when necessary,
* 5) restore the C scratch registers...
* 6) restore initial execution flow
*
*/
int BSP_install_rtems_irq_handler (const rtems_irq_connect_data*);
/*
* function to get the current RTEMS irq handler for ptr->name. It enables to
* define hanlder chain...
*/
int BSP_get_current_rtems_irq_handler (rtems_irq_connect_data* ptr);
/*
* function to get disconnect the RTEMS irq handler for ptr->name.
* This function checks that the value given is the current one for safety reason.
* The user can use the previous function to get it.
*/
int BSP_remove_rtems_irq_handler (const rtems_irq_connect_data*);
#ifdef __cplusplus
}
#endif
#endif /* _IRQ_H_ */
/* end of include file */

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Makefile
Makefile.in

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c/src/lib/libbsp/arm/vegaplus/start/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
PGMS = $(ARCH)/start.o
S_FILES = start.S
S_O_FILES = $(S_FILES:%.S=$(ARCH)/%.o)
OBJS = $(S_O_FILES)
TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../../../../../../automake/lib.am
#
# (OPTIONAL) Add local stuff here using +=
#
LINKCMDS = $(top_srcdir)/startup/linkcmds
$(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o: $(ARCH)/start.o
$(INSTALL_DATA) $< $@
all: $(ARCH) $(OBJS) $(TMPINSTALL_FILES)
EXTRA_DIST = start.S
include $(top_srcdir)/../../../../../../automake/local.am

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/*
* start.S : RTEMS entry point
*
* Copyright (C) 2000 Canon Research Centre France SA.
* Emmanuel Raguet, mailto:raguet@crf.canon.fr
*
* 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.
*
*/
/* Register definition */
.equ CNTL_BASE_ADR, 0xF3000 /* Base address of registers */
.equ PORTCNTL, 0x0C60
.equ CSCNTL0_0, 0x0C00 /* Offset of CS0CNTL */
.equ CSCNTL0_1, 0x0C04 /* Offset of CS0CNTL */
.equ CSCNTL0_2, 0x0C08 /* Offset of CS0CNTL */
.equ CSCNTL1_0, 0x0C20 /* Offset of CS0CNTL */
.equ CSCNTL1_1, 0x0C24 /* Offset of CS0CNTL */
.equ CSCNTL1_2, 0x0C28 /* Offset of CS0CNTL */
.equ CNTL_CLK_ADR, 0xF2000 /* Base address of registers */
.equ CLKCNTL, 0x08F4 /* Offset of CS0CNTL */
.equ INTHPAI, 0x0800
.equ INTEOI, 0x0808
.equ EOI, 0x80
/* Some standard definitions...*/
.equ Mode_USR, 0x10
.equ Mode_FIQ, 0x11
.equ Mode_IRQ, 0x12
.equ Mode_SVC, 0x13
.equ Mode_ABT, 0x17
.equ Mode_ABORT, 0x17
.equ Mode_UNDEF, 0x1B
.equ Mode_SYS, 0x1F /*only available on ARM Arch. v4*/
.equ I_Bit, 0x80
.equ F_Bit, 0x40
.equ Mode_SVC_MIRQ, Mode_SVC | I_Bit | F_Bit
.equ Mode_SVC_UIRQ, Mode_SVC
.equ Mode_IRQ_MIRQ, Mode_SVC | I_Bit | F_Bit
.equ MARK_STACK, 0 /*Fill every stack with a pattern for debug (0 or 1)*/
/*-----------------------------------------------------------------------------
* Definitions
----------------------------------------------------------------------------*/
.equ PID_RAM_Limit, 0x1800
/* stack size definition */
.equ FIQ_StackSize, 0x400 /* FIQ stack size */
.equ IRQ_StackSize, 0xE00 /* IRQ stack size */
.equ SVC_StackSize, 0x200 /* SVC stack size */
.equ ABORT_StackSize, 0x100 /* ABORT stack size */
.equ UNDEF_StackSize, 0x100 /* UNDEF stack size */
/* sack size address */
.equ Stack_Limit, PID_RAM_Limit
.equ SVC_Stack, Stack_Limit
.equ ABORT_Stack, Stack_Limit - SVC_StackSize
.equ UNDEF_Stack, ABORT_Stack - ABORT_StackSize
.equ IRQ_Stack, UNDEF_Stack - UNDEF_StackSize
.equ FIQ_Stack, IRQ_Stack - IRQ_StackSize
.equ END_FIQ, FIQ_Stack - FIQ_StackSize
.text
.globl _start
/*
* This "strange" code is used to switch the memory access
* from 8 bits to 16 bits, because the vega plus accesses
* the memory via 8 bits at reset time
*/
_start:
.long 0x00300010 /*LDR r3,0x18*/
.long 0x00E5009F
.long 0x00400010
.long 0x00E5009F
.long 0x004600B0
.long 0x00E100C3
.long 0x00400002 /* CS0 = 16 bits*/
.long 0x00E300A0
.long 0x004200B0
.long 0x00E100C3
.long 0x00000009
.long 0x00EA0000
.long 0x003C0000
.long 0x0000000F
.long 0x00A60087
.long 0x00000000
.code 32
/* --- Initialise external bus*/
Real_start:
MOV r0,#CNTL_BASE_ADR
/*Load timing configuration of CS0*/
LDR r1, =0x0804
STR r1, [r0,#CSCNTL0_0]
LDR r1, =0xC432
STR r1, [r0,#CSCNTL1_0]
/* Load timing configuration and access mode of CS1
NOTE : Important for macro REGION_INIT of Region_init.s
if initialisation of data in external RAM */
LDR r1, =0x2200
STR r1, [r0,#CSCNTL0_1]
LDR r1, =0x8022
STR r1, [r0,#CSCNTL1_1]
/* Load timing configuration and access mode of CS2 */
LDR r1, =0x342
STR r1, [r0,#CSCNTL0_2]
LDR r1, =0xA2
STR r1, [r0,#CSCNTL1_2]
MOV r0,#CNTL_CLK_ADR
/* Load clock mode 55 MHz */
LDR r1, =0x0010
STR r1, [r0,#CLKCNTL]
/* Copy data from FLASH to RAM */
LDR r0, =_initdata /* load address of region */
LDR r1, =0x400000 /* execution address of region */
LDR r2, =_edata /* copy execution address into r2 */
copy:
CMP r1, r2 /* loop whilst r1 < r2 */
LDRLO r3, [r0], #4
STRLO r3, [r1], #4
BLO copy
/* zero the bss */
LDR r1, =__bss_end__ /* get end of ZI region */
LDR r0, =__bss_start__ /* load base address of ZI region */
zi_init:
MOV r2, #0
CMP r0, r1 /* loop whilst r0 < r1 */
STRLOT r2, [r0], #4
BLO zi_init
/* Load basic ARM7 interrupt table */
VectorInit:
MOV R8, #0
ADR R9, Vector_Init_Block
LDMIA R9!, {R0-R7} /* Copy the Vectors (8 words) */
STMIA R8!, {R0-R7}
LDMIA R9!, {R0-R7} /* Copy the .long'ed addresses (8 words) */
STMIA R8!, {R0-R7}
B init2
/*******************************************************
standard exception vectors table
*** Must be located at address 0
********************************************************/
Vector_Init_Block:
LDR PC, Reset_Addr
LDR PC, Undefined_Addr
LDR PC, SWI_Addr
LDR PC, Prefetch_Addr
LDR PC, Abort_Addr
NOP
LDR PC, IRQ_Addr
LDR PC, FIQ_Addr
.globl Reset_Addr
Reset_Addr: .long _start
Undefined_Addr: .long Undefined_Handler
SWI_Addr: .long SWI_Handler
Prefetch_Addr: .long Prefetch_Handler
Abort_Addr: .long Abort_Handler
.long 0
IRQ_Addr: .long IRQ_Handler
FIQ_Addr: .long FIQ_Handler
/* The following handlers do not do anything useful */
.globl Undefined_Handler
Undefined_Handler:
B Undefined_Handler
.globl SWI_Handler
SWI_Handler:
B SWI_Handler
.globl Prefetch_Handler
Prefetch_Handler:
B Prefetch_Handler
.globl Abort_Handler
Abort_Handler:
B Abort_Handler
.globl IRQ_Handler
IRQ_Handler:
B IRQ_Handler
.globl FIQ_Handler
FIQ_Handler:
B FIQ_Handler
init2 :
/* --- Initialise stack pointer registers
Set up the ABORT stack pointer last and stay in SVC mode */
MOV r0, #(Mode_ABORT | I_Bit | F_Bit) /* No interrupts */
MSR cpsr, r0
LDR sp, =ABORT_Stack
/* Enter IRQ mode and set up the IRQ stack pointer */
MOV r0, #Mode_IRQ | I_Bit | F_Bit /* No interrupts */
MSR cpsr, r0
LDR sp, =IRQ_Stack
/* Enter FIQ mode and set up the FIQ stack pointer */
MOV r0, #Mode_FIQ | I_Bit | F_Bit /* No interrupts */
MSR cpsr, r0
LDR sp, =FIQ_Stack
/* Set up the SVC stack pointer last and stay in SVC mode */
MOV r0, #Mode_SVC | I_Bit | F_Bit /* No interrupts */
MSR cpsr, r0
LDR sp, =SVC_Stack
/* --- Now we enter the C code */
B boot_card

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c/src/lib/libbsp/arm/vegaplus/startup/.cvsignore Normal file
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Makefile
Makefile.in

40
c/src/lib/libbsp/arm/vegaplus/startup/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
VPATH = @srcdir@:@srcdir@/../../../shared
C_FILES = bsplibc.c bsppost.c bspstart.c exit.c bootcard.c main.c sbrk.c gnatinstallhandler.c
C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o)
S_FILES =
S_O_FILES = $(S_FILES:%.S=$(ARCH)/%.o)
startup_rel_OBJECTS = $(C_O_FILES) $(S_O_FILES)
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../../../../../../automake/lib.am
#
# (OPTIONAL) Add local stuff here using +=
#
$(PGM): $(startup_rel_OBJECTS)
$(make-rel)
$(PROJECT_RELEASE)/lib/linkcmds: linkcmds
$(INSTALL_DATA) $< $@
TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/linkcmds
all: $(ARCH) $(startup_rel_OBJECTS) $(PGM) $(TMPINSTALL_FILES)
.PRECIOUS: $(PGM)
EXTRA_DIST = linkcmds
include $(top_srcdir)/../../../../../../automake/local.am

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c/src/lib/libbsp/arm/vegaplus/startup/bspstart.c Normal file
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/*-------------------------------------------------------------------------+
| This file contains the ARM BSP startup package. It includes application,
| board, and monitor specific initialization and configuration. The generic CPU
| dependent initialization has been performed before this routine is invoked.
+--------------------------------------------------------------------------+
|
| Copyright (c) 2000 Canon Research Centre France SA.
| Emmanuel Raguet, mailto:raguet@crf.canon.fr
|
| 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.
|
+--------------------------------------------------------------------------*/
#include <bsp.h>
#include <uart.h>
#include <libcsupport.h>
#include <rtems/libio.h>
/*-------------------------------------------------------------------------+
| Global Variables
+--------------------------------------------------------------------------*/
volatile unsigned long *Regs = (unsigned long*)0xF0000; /* Chip registers */
extern rtems_unsigned32 _end; /* End of BSS. Defined in 'linkcmds'. */
/*
* Size of heap if it is 0 it will be dynamically defined by memory size,
* otherwise the value should be changed by binary patch
*/
rtems_unsigned32 _heap_size = 0;
/* Size of stack used during initialization. Defined in 'start.s'. */
extern rtems_unsigned32 _stack_size;
rtems_unsigned32 rtemsFreeMemStart;
/* Address of start of free memory - should be updated
after creating new partitions or regions. */
/* The original BSP configuration table from the application and our copy of it
with some changes. */
extern rtems_configuration_table Configuration;
rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table; /* CPU configuration table. */
char *rtems_progname; /* Program name - from main(). */
/*-------------------------------------------------------------------------+
| External Prototypes
+--------------------------------------------------------------------------*/
extern void rtems_irq_mngt_init(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_postdriver_hook(void);
/*-------------------------------------------------------------------------+
| Function: bsp_pretasking_hook
| Description: BSP pretasking hook. Called just before drivers are
| initialized. Used to setup libc and install any BSP
| extensions. NOTE: Must not use libc (to do io) from here,
| since drivers are not yet initialized.
| Global Variables: None.
| Arguments: None.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
void bsp_pretasking_hook(void)
{
if(_heap_size == 0)
{
_heap_size = 0x420000 - rtemsFreeMemStart;
}
bsp_libc_init((void *)rtemsFreeMemStart, _heap_size, 0);
rtemsFreeMemStart += _heap_size; /* HEAP_SIZE in KBytes */
#ifdef RTEMS_DEBUG
rtems_debug_enable(RTEMS_DEBUG_ALL_MASK);
#endif /* RTEMS_DEBUG */
} /* bsp_pretasking_hook */
/*-------------------------------------------------------------------------+
| Function: bsp_start
| Description: Called before main is invoked.
| Global Variables: None.
| Arguments: None.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
void bsp_start_default( void )
{
rtemsFreeMemStart = (rtems_unsigned32)(&_end); /* &_end+_stack_size;*/
/* set the value of start of free memory. */
/* If we don't have command line arguments set default program name. */
Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */
Cpu_table.predriver_hook = NULL; /* use system's */
Cpu_table.postdriver_hook = bsp_postdriver_hook;
Cpu_table.idle_task = NULL;
/* do not override system IDLE task */
Cpu_table.do_zero_of_workspace = TRUE;
Cpu_table.interrupt_stack_size = 4096;
Cpu_table.extra_mpci_receive_server_stack = 0;
/* Place RTEMS workspace at beginning of free memory. */
BSP_Configuration.work_space_start = (void *)rtemsFreeMemStart;
rtemsFreeMemStart += BSP_Configuration.work_space_size;
console_reserve_resources(&BSP_Configuration);
/*
* Init rtems exceptions management
*/
rtems_exception_init_mngt();
/*
* Init rtems interrupt management
*/
rtems_irq_mngt_init();
/*
* The following information is very useful when debugging.
*/
#if 0
printk( "work_space_size = 0x%x\n", BSP_Configuration.work_space_size );
printk( "maximum_extensions = 0x%x\n", BSP_Configuration.maximum_extensions );
printk( "microseconds_per_tick = 0x%x\n",
BSP_Configuration.microseconds_per_tick );
printk( "ticks_per_timeslice = 0x%x\n",
BSP_Configuration.ticks_per_timeslice );
printk( "maximum_devices = 0x%x\n", BSP_Configuration.maximum_devices );
printk( "number_of_device_drivers = 0x%x\n",
BSP_Configuration.number_of_device_drivers );
printk( "Device_driver_table = 0x%x\n",
BSP_Configuration.Device_driver_table );
printk( "_heap_size = 0x%x\n", _heap_size );
/* printk( "_stack_size = 0x%x\n", _stack_size );*/
printk( "rtemsFreeMemStart = 0x%x\n", rtemsFreeMemStart );
printk( "work_space_start = 0x%x\n", BSP_Configuration.work_space_start );
printk( "work_space_size = 0x%x\n", BSP_Configuration.work_space_size );
#endif
} /* bsp_start */
/*
* By making this a weak alias for bsp_start_default, a brave soul
* can override the actual bsp_start routine used.
*/
void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default")));

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c/src/lib/libbsp/arm/vegaplus/startup/exit.c Normal file
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/*-------------------------------------------------------------------------+
| exit.c - ARM BSP
+--------------------------------------------------------------------------+
| Routines to shutdown and reboot the BSP.
+--------------------------------------------------------------------------+
|
| Copyright (c) 2000 Canon Research Centre France SA.
| Emmanuel Raguet, mailto:raguet@crf.canon.fr
|
| 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.
|
+--------------------------------------------------------------------------*/
#include <stdio.h>
#include <bsp.h>
#include <bspio.h>
#include <rtems/libio.h>
void rtemsReboot (void)
{
asm volatile ("b _start");
}
void bsp_cleanup(void)
{
unsigned char ch;
static char line[]="\nEXECUTIVE SHUTDOWN! Any key to reboot...";
/*
* AT this point, the console driver is disconnected => we must
* use polled output/input. This is exactly what printk
* does.
*/
printk("\n");
printk(line);
ch = BSP_poll_char();
rtemsReboot();
}

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c/src/lib/libbsp/arm/vegaplus/startup/linkcmds Normal file
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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
"elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
SEARCH_DIR(/usr/local/rtems-arm-dev-tools/arm-rtems/lib);
MEMORY {
FLASH (rx) : ORIGIN = 0x200000, LENGTH = 512K
RAM (!rx) : ORIGIN = 0x400000, LENGTH = 128K
}
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
/* Read-only sections, merged into text segment: */
/* . = 0 + SIZEOF_HEADERS;*/
.hash : { *(.hash) } > FLASH
.dynsym : { *(.dynsym) } > FLASH
.dynstr : { *(.dynstr) } > FLASH
.gnu.version : { *(.gnu.version) } > FLASH
.gnu.version_d : { *(.gnu.version_d) } > FLASH
.gnu.version_r : { *(.gnu.version_r) } > FLASH
.rel.init : { *(.rel.init) } > FLASH
.rela.init : { *(.rela.init) } > FLASH
.rel.text :
{
*(.rel.text)
*(.rel.text.*)
*(.rel.gnu.linkonce.t*)
} > FLASH
.rela.text :
{
*(.rela.text)
*(.rela.text.*)
*(.rela.gnu.linkonce.t*)
} > FLASH
.rel.fini : { *(.rel.fini) } > FLASH
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{
*(.rel.rodata)
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{
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*(.rel.gnu.linkonce.d*)
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*(.rela.gnu.linkonce.d*)
} > FLASH
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.rela.dtors : { *(.rela.dtors) } > FLASH
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.rel.sdata :
{
*(.rel.sdata)
*(.rel.sdata.*)
*(.rel.gnu.linkonce.s*)
} > FLASH
.rela.sdata :
{
*(.rela.sdata)
*(.rela.sdata.*)
*(.rela.gnu.linkonce.s*)
} > FLASH
.rel.sbss : { *(.rel.sbss) } > FLASH
.rela.sbss : { *(.rela.sbss) } > FLASH
.rel.bss : { *(.rel.bss) } > FLASH
.rela.bss : { *(.rela.bss) } > FLASH
.rel.plt : { *(.rel.plt) } > FLASH
.rela.plt : { *(.rela.plt) } > FLASH
.init :
{
KEEP (*(.init))
} > FLASH /*=0*/
.plt : { *(.plt) } > FLASH
.text :
{
*(.text)
*(.text.*)
*(.stub)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
*(.glue_7t) *(.glue_7)
} > FLASH /*=0*/
_etext = .;
PROVIDE (etext = .);
.fini :
{
KEEP (*(.fini))
} > FLASH /*=0*/
.rodata : { *(.rodata) *(.rodata.*) *(.gnu.linkonce.r*) } > FLASH
.rodata1 : { *(.rodata1) } > FLASH
_erodata = ABSOLUTE(.);
PROVIDE (erodata = ABSOLUTE(.));
/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. */
. = ALIGN(256);
_begdata = ALIGN(256);
.arm_end_text :
{
. = ALIGN(256);
_initdata = ALIGN(256);
} > FLASH
.data : AT (_begdata)
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
SORT(CONSTRUCTORS)
} > RAM
.data1 : { *(.data1) } > RAM
.eh_frame : { *(.eh_frame) } > RAM
.gcc_except_table : { *(.gcc_except_table) } > RAM
.ctors :
{
/* gcc uses crtbegin.o to find the start of
the constructors, so we make sure it is
first. Because this is a wildcard, it
doesn't matter if the user does not
actually link against crtbegin.o; the
linker won't look for a file to match a
wildcard. The wildcard also means that it
doesn't matter which directory crtbegin.o
is in. */
KEEP (*crtbegin.o(.ctors))
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last */
KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
} > RAM
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} > RAM
.got : { *(.got.plt) *(.got) } > RAM
.dynamic : { *(.dynamic) } > RAM
/* 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. */
.sdata :
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*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
} > RAM
.arm_data :
{
_edata = .;
__bss_start = .;
__bss_start__ = .;
} > RAM
.sbss :
{
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.scommon)
} > RAM
.bss :
{
*(.dynbss)
*(.bss)
*(.bss.*)
*(COMMON)
/* Align here to ensure that the .bss section occupies space up to
_end. Align after .bss to ensure correct alignment even if the
.bss section disappears because there are no input sections. */
. = ALIGN(32 / 8);
} > RAM
. = ALIGN(32 / 8);
.arm_end :
{
_end = .;
_bss_end__ = . ;
__bss_end__ = . ;
__end__ = . ;
} > RAM
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
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/* DWARF 2 */
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.debug_line 0 : { *(.debug_line) }
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/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
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/*.stack 0x80000 : { _stack = .; *(.stack) }*/
/* These must appear regardless of . */
}

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c/src/lib/libbsp/arm/vegaplus/wrapup/.cvsignore Normal file
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Makefile
Makefile.in

32
c/src/lib/libbsp/arm/vegaplus/wrapup/Makefile.am Normal file
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##
## $Id$
##
AUTOMAKE_OPTIONS = foreign 1.4
BSP_PIECES = console startup irq
# bummer; have to use $foreach since % pattern subst rules only replace 1x
OBJS = $(foreach piece, $(BSP_PIECES), ../$(piece)/$(ARCH)/*.o)
LIB = $(ARCH)/libbsp.a
include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
include $(top_srcdir)/../../../../../../automake/lib.am
#
# (OPTIONAL) Add local stuff here using +=
#
$(LIB): $(OBJS)
$(make-library)
$(PROJECT_RELEASE)/lib/libbsp$(LIB_VARIANT).a: $(LIB)
$(INSTALL_DATA) $< $@
TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/libbsp$(LIB_VARIANT).a
all: $(ARCH) $(OBJS) $(LIB) $(TMPINSTALL_FILES)
.PRECIOUS: $(LIB)
include $(top_srcdir)/../../../../../../automake/local.am