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2004-07-15 Jay Monkman

Browse Source 
* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
	times, console/uarts.c, include/.cvsignore, include/bsp.h,
	include/tm27.h, network/.cvsignore, network/network.c,
	start/.cvsignore, start/start.S, startup/.cvsignore,
	startup/bspstart.c, startup/exit.c, startup/linkcmds,
	startup/memmap.c: New files.
This commit is contained in:
Jay Monkman
2004-07-15 06:16:16 +00:00
parent a2c617109d
commit b759b04efa
20 changed files with 1946 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
c/src/lib/libbsp/arm/csb337/.cvsignore Normal file
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Makefile
Makefile.in
aclocal.m4
autom4te.cache
config.cache
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
missing
mkinstalldirs

9
c/src/lib/libbsp/arm/csb337/ChangeLog Normal file
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2004-07-15 Jay Monkman
* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
times, console/uarts.c, include/.cvsignore, include/bsp.h,
include/tm27.h, network/.cvsignore, network/network.c,
start/.cvsignore, start/start.S, startup/.cvsignore,
startup/bspstart.c, startup/exit.c, startup/linkcmds,
startup/memmap.c: New files.

151
c/src/lib/libbsp/arm/csb337/Makefile.am Normal file
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##
## $Id$
##
ACLOCAL_AMFLAGS = -I ../../../../aclocal
include $(top_srcdir)/../../../../automake/compile.am
include $(top_srcdir)/../../bsp.am
dist_project_lib_DATA = bsp_specs
include_HEADERS = include/bsp.h
include_HEADERS += include/tm27.h
nodist_include_HEADERS = include/bspopts.h
EXTRA_PROGRAMS =
CLEANFILES =
noinst_DATA =
nodist_include_HEADERS += ../../shared/include/coverhd.h
EXTRA_DIST = start/start.S
start$(LIB_VARIANT).$(OBJEXT): start/start.S
$(CPPASCOMPILE) -DASM -o $@ -c $<
project_lib_DATA = start$(LIB_VARIANT).$(OBJEXT)
dist_project_lib_DATA += startup/linkcmds
EXTRA_PROGRAMS += startup.rel
CLEANFILES += startup.rel
startup_rel_SOURCES = ../../shared/bsplibc.c ../../shared/bsppost.c \
startup/bspstart.c startup/exit.c \
startup/memmap.c \
../../shared/bootcard.c \
../../shared/main.c ../../shared/sbrk.c \
../../shared/gnatinstallhandler.c
startup_rel_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAGS_OPTIMIZE_V)
startup_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
EXTRA_PROGRAMS += startup_g.rel
CLEANFILES += startup_g.rel
startup_g_rel_SOURCES = $(startup_rel_SOURCES)
startup_g_rel_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAGS_DEBUG_V)
startup_g_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
noinst_DATA += startup$(LIB_VARIANT).rel
EXTRA_PROGRAMS += console.rel
CLEANFILES += console.rel
console_rel_SOURCES = console/uarts.c ../../shared/console.c
console_rel_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAGS_OPTIMIZE_V)
console_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
EXTRA_PROGRAMS += console_g.rel
CLEANFILES += console_g.rel
console_g_rel_SOURCES = $(console_rel_SOURCES)
console_g_rel_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAGS_DEBUG_V)
console_g_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
noinst_DATA += console$(LIB_VARIANT).rel
if HAS_NETWORKING
network_CPPFLAGS = -D__INSIDE_RTEMS_BSD_TCPIP_STACK__
EXTRA_PROGRAMS += network.rel
CLEANFILES += network.rel
network_rel_SOURCES = network/network.c
network_rel_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAGS_OPTIMIZE_V) \
$(network_CPPFLAGS)
network_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
EXTRA_PROGRAMS += network_g.rel
CLEANFILES += network_g.rel
network_g_rel_SOURCES = $(network_rel_SOURCES)
network_g_rel_CPPFLAGS = $(AM_CPPFLAGS) $(CFLAGS_DEBUG_V) \
$(network_CPPFLAGS)
network_g_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
noinst_DATA += network$(LIB_VARIANT).rel
endif
EXTRA_LIBRARIES = libbsp.a
CLEANFILES += libbsp.a
libbsp_a_SOURCES =
libbsp_a_LIBADD = startup$(LIB_VARIANT).rel console$(LIB_VARIANT).rel
if HAS_NETWORKING
libbsp_a_LIBADD += network$(LIB_VARIANT).rel
endif
libbsp_a_LIBADD += \
../../../libcpu/@RTEMS_CPU@/shared/arm920$(LIB_VARIANT).rel \
../../../libcpu/@RTEMS_CPU@/@RTEMS_CPU_MODEL@/clock$(LIB_VARIANT).rel \
../../../libcpu/@RTEMS_CPU@/@RTEMS_CPU_MODEL@/dbgu$(LIB_VARIANT).rel \
../../../libcpu/@RTEMS_CPU@/@RTEMS_CPU_MODEL@/timer$(LIB_VARIANT).rel \
../../../libcpu/@RTEMS_CPU@/@RTEMS_CPU_MODEL@/pmc$(LIB_VARIANT).rel \
../../../libcpu/@RTEMS_CPU@/@RTEMS_CPU_MODEL@/irq$(LIB_VARIANT).rel
EXTRA_LIBRARIES += libbsp_g.a
CLEANFILES += libbsp_g.a
libbsp_g_a_SOURCES = $(libbsp_a_SOURCES)
libbsp_g_a_LIBADD = $(libbsp_a_LIBADD)
noinst_DATA += libbsp$(LIB_VARIANT).a
all-local: $(PREINSTALL_FILES) $(TMPINSTALL_FILES)
PREINSTALL_DIRS =
PREINSTALL_FILES =
TMPINSTALL_FILES =
$(PROJECT_INCLUDE)/$(dirstamp):
@$(mkdir_p) $(PROJECT_INCLUDE)
@: > $(PROJECT_INCLUDE)/$(dirstamp)
PREINSTALL_DIRS += $(PROJECT_INCLUDE)/$(dirstamp)
$(PROJECT_LIB)/$(dirstamp):
@$(mkdir_p) $(PROJECT_LIB)
@: > $(PROJECT_LIB)/$(dirstamp)
PREINSTALL_DIRS += $(PROJECT_LIB)/$(dirstamp)
$(PROJECT_LIB)/bsp_specs: bsp_specs $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/bsp_specs
PREINSTALL_FILES += $(PROJECT_LIB)/bsp_specs
$(PROJECT_INCLUDE)/bsp.h: include/bsp.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp.h
$(PROJECT_INCLUDE)/tm27.h: include/tm27.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tm27.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/tm27.h
$(PROJECT_INCLUDE)/bspopts.h: include/bspopts.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bspopts.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bspopts.h
$(PROJECT_INCLUDE)/coverhd.h: ../../shared/include/coverhd.h $(PROJECT_INCLUDE)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/coverhd.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/coverhd.h
$(PROJECT_LIB)/start$(LIB_VARIANT).$(OBJEXT): start$(LIB_VARIANT).$(OBJEXT) $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/start$(LIB_VARIANT).$(OBJEXT)
TMPINSTALL_FILES += $(PROJECT_LIB)/start$(LIB_VARIANT).$(OBJEXT)
$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
CLEANFILES += $(PREINSTALL_FILES)
DISTCLEANFILES = $(PREINSTALL_DIRS)
CLEANFILES += $(TMPINSTALL_FILES)
include $(top_srcdir)/../../../../automake/local.am

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c/src/lib/libbsp/arm/csb337/README Normal file
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#
# $Id$
#
This is the BSP for Cogent Computer System's CSB337, a single board
computer using the Atmel AT91RM9200 CPU.

23
c/src/lib/libbsp/arm/csb337/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: -lrtemsbsp -lrtemscpu} %{qrtems_debug: -lrtemsbsp_g -lrtemscpu_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 -N -e _start}

24
c/src/lib/libbsp/arm/csb337/configure.ac Normal file
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## Process this file with autoconf to produce a configure script.
##
## configure.ac,v 1.5 2003/03/11 09:39:07 ralf Exp
AC_PREREQ(2.57)
AC_INIT([rtems-c-src-lib-libbsp-arm-csb337],[_RTEMS_VERSION],[rtems-bugs@OARcorp.com])
AC_CONFIG_SRCDIR([bsp_specs])
RTEMS_TOP(../../../../../..)
RTEMS_CANONICAL_TARGET_CPU
AM_INIT_AUTOMAKE([no-define foreign 1.8])
RTEMS_BSP_CONFIGURE
RTEMS_PROG_CC_FOR_TARGET([-ansi -fasm])
RTEMS_CANONICALIZE_TOOLS
RTEMS_PROG_CCAS
RTEMS_CHECK_NETWORKING
AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
# Explicitly list all Makefiles here
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

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c/src/lib/libbsp/arm/csb337/console/uarts.c Normal file
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/*
* Console driver for CSB337
*
* This driver uses the shared console driver in
* ...../libbsp/shared/console.c
*
* Copyright (c) 2003 by Cogent Computer Systems
* Written by Jay Monkman <jtm@lopingdog.com>
*
* 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 <termios.h>
#include <rtems/bspIo.h>
#include <at91rm9200.h>
#include <at91rm9200_dbgu.h>
#include <libchip/serial.h>
#include <libchip/sersupp.h>
/* How many serial ports? */
#define NUM_DEVS 1
/* These are used by code in console.c */
unsigned long Console_Port_Count = NUM_DEVS;
console_data Console_Port_Data[NUM_DEVS];
/* rtems console uses the following minor number */
rtems_device_minor_number Console_Port_Minor = 0;
extern console_fns dbgu_fns;
/*
* There's one item in array for each UART.
*
* Some of these fields are marked "NOT USED". They are not used
* by console.c, but may be used by drivers in libchip
*
* when we add other types of UARTS we will need to move this
* structure to a generic uart.c file with only this in it
*/
console_tbl Console_Port_Tbl[] = {
{
"/dev/console", /* sDeviceName */
SERIAL_CUSTOM, /* deviceType */
&dbgu_fns, /* pDeviceFns */
NULL, /* deviceProbe */
NULL, /* pDeviceFlow */
0, /* ulMargin - NOT USED */
0, /* ulHysteresis - NOT USED */
NULL, /* pDeviceParams */
DBGU_BASE, /* ulCtrlPort1 - Pointer to DBGU regs */
0, /* ulCtrlPort2 - NOT USED */
0, /* ulDataPort - NOT USED */
NULL, /* getRegister - NOT USED */
NULL, /* setRegister - NOT USED */
NULL, /* getData - NOT USED */
NULL, /* setData - NOT USED */
0, /* ulClock - NOT USED */
0 /* ulIntVector - NOT USED */
}};
console_tbl *BSP_get_uart_from_minor(int minor)
{
return &Console_Port_Tbl[minor];
}

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c/src/lib/libbsp/arm/csb337/include/.cvsignore Normal file
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Makefile
Makefile.in
coverhd.h
bspopts.h
bspopts.h.in
stamp-h
stamp-h.in

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c/src/lib/libbsp/arm/csb337/include/bsp.h Normal file
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/*
* CSB337 BSP header file
*
* Copyright (c) 2004 by Cogent Computer Systems
* Writtent by Jay Monkman <jtm@lopingdog.com>
*
* 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.
*
*
* $Id$
*/
#ifndef __BSP_H__
#define __BSP_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <bspopts.h>
#include <rtems.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>
#include <libchip/serial.h>
/* What is the input clock freq in hertz? */
#define BSP_MAIN_FREQ 3686400 /* 3.6864 MHz */
#define BSP_SLCK_FREQ 32768 /* 32.768 KHz */
/* What is the last interrupt? */
#define BSP_MAX_INT AT91RM9200_MAX_INT
console_tbl *BSP_get_uart_from_minor(int minor);
static inline int32_t BSP_get_baud(void) {return 38400;}
/* How many serial ports? */
#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 1
/* How big should the interrupt stack be? */
#define CONFIGURE_INTERRUPT_STACK_MEMORY (16 * 1024)
extern rtems_configuration_table BSP_Configuration;
#define ST_PIMR_PIV 33 /* 33 ticks of the 32.768Khz clock ~= 1msec
/*
* Network driver configuration
*/
extern struct rtems_bsdnet_ifconfig *config;
/* Change these to match your board */
int rtems_at91rm9200_emac_attach(struct rtems_bsdnet_ifconfig *config, int attaching);
#define RTEMS_BSP_NETWORK_DRIVER_NAME "eth0"
#define RTEMS_BSP_NETWORK_DRIVER_ATTACH rtems_at91rm9200_emac_attach
#ifdef __cplusplus
}
#endif
#endif /* __BSP_H__ */

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c/src/lib/libbsp/arm/csb337/include/tm27.h Normal file
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/*
* tm27.h
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _RTEMS_TMTEST27
#error "This is an RTEMS internal file you must not include directly."
#endif
#ifndef __tm27_h
#define __tm27_h
/*
* Define the interrupt mechanism for Time Test 27
*/
#define MUST_WAIT_FOR_INTERRUPT 0
#define Install_tm27_vector( handler ) /* empty */
#define Cause_tm27_intr() /* empty */
#define Clear_tm27_intr() /* empty */
#define Lower_tm27_intr() /* empty */
#endif

14
c/src/lib/libbsp/arm/csb337/network/.cvsignore Normal file
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Makefile
Makefile.in
aclocal.m4
autom4te.cache
config.cache
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
missing
mkinstalldirs

665
c/src/lib/libbsp/arm/csb337/network/network.c Normal file
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/*
* AT91RM9200 ethernet driver
*
* Copyright (c) 2003 by Cogent Computer Systems
* Written by Mike Kelly <mike@cogcomp.com>
* and Jay Monkman <jtm@lopingdog.com>
*
* $Id$
*/
#include <rtems.h>
#include <rtems/rtems_bsdnet.h>
#include <at91rm9200.h>
#include <at91rm9200_emac.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <rtems/error.h>
#include <sys/param.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <irq.h>
/* interrupt stuff */
#define EMAC_INT_PRIORITY 0 /* lowest priority */
/* RTEMS event used by interrupt handler to start receive daemon. */
#define START_RECEIVE_EVENT RTEMS_EVENT_1
/* RTEMS event used to start transmit daemon. */
#define START_TRANSMIT_EVENT RTEMS_EVENT_2
rtems_isr at91rm9200_emac_isr(rtems_vector_number vector);
static void at91rm9200_emac_isr_on(const rtems_irq_connect_data *unused);
static void at91rm9200_emac_isr_off(const rtems_irq_connect_data *unused);
static int at91rm9200_emac_isr_is_on(const rtems_irq_connect_data *irq);
/* Replace the first value with the clock's interrupt name. */
rtems_irq_connect_data at91rm9200_emac_isr_data = {
AT91RM9200_INT_EMAC,
(rtems_irq_hdl)at91rm9200_emac_isr,
at91rm9200_emac_isr_on,
at91rm9200_emac_isr_off,
at91rm9200_emac_isr_is_on,
3, /* unused for ARM */
0 }; /* unused for ARM */
/* use the values defined in linkcmds for our use of SRAM */
extern void * at91rm9200_emac_rxbuf_hdrs;
extern void * at91rm9200_emac_txbuf;
extern void * at91rm9200_emac_rxbufs;
/* Set up EMAC hardware */
/* Number of Receive and Transmit Buffers and Buffer Descriptors */
#define NUM_RXBDS 8
#define NUM_TXBDS 1
#define RX_BUFFER_SIZE 0x600
/* use internal SRAM for buffers and descriptors
* also insure that the receive descriptors
* start on a 64byte boundary
* Receive Buffer Descriptor Header
*/
typedef struct
{
unsigned long address;
unsigned long status;
} RXBUF_HDR;
RXBUF_HDR *rxbuf_hdrs;
unsigned char *txbuf;
unsigned char *rxbuf;
int delay_cnt;
/*
* Hardware-specific storage
*/
typedef struct
{
/*
* Connection to networking code
* This entry *must* be the first in the sonic_softc structure.
*/
struct arpcom arpcom;
/*
* Interrupt vector
*/
rtems_vector_number vector;
/*
* Indicates configuration
*/
int acceptBroadcast;
/*
* Task waiting for interrupts
*/
rtems_id rxDaemonTid;
rtems_id txDaemonTid;
/*
* current receive header
*/
int rx_buf_idx;
/*
* Statistics
*/
unsigned long Interrupts;
unsigned long rxInterrupts;
unsigned long rxMissed;
unsigned long rxGiant;
unsigned long rxNonOctet;
unsigned long rxBadCRC;
unsigned long rxCollision;
unsigned long txInterrupts;
unsigned long txSingleCollision;
unsigned long txMultipleCollision;
unsigned long txCollision;
unsigned long txDeferred;
unsigned long txUnderrun;
unsigned long txLateCollision;
unsigned long txExcessiveCollision;
unsigned long txExcessiveDeferral;
unsigned long txLostCarrier;
unsigned long txRawWait;
} at91rm9200_emac_softc_t;
static at91rm9200_emac_softc_t softc;
/* The AT91RM9200 ethernet fifos are very undersized. Therefore
* we use the internal SRAM to hold 4 receive packets and one
* transmit packet. Note that the AT91RM9200 can only queue
* one transmit packet at a time.
*/
/* function prototypes */
int rtems_at91rm9200_emac_attach (struct rtems_bsdnet_ifconfig *config,
void *chip);
void at91rm9200_emac_init(void *arg);
void at91rm9200_emac_init_hw(at91rm9200_emac_softc_t *sc);
void at91rm9200_emac_start(struct ifnet *ifp);
void at91rm9200_emac_stop (at91rm9200_emac_softc_t *sc);
void at91rm9200_emac_txDaemon (void *arg);
void at91rm9200_emac_sendpacket (struct ifnet *ifp, struct mbuf *m);
void at91rm9200_emac_rxDaemon(void *arg);
void at91rm9200_emac_stats (at91rm9200_emac_softc_t *sc);
static int at91rm9200_emac_ioctl (struct ifnet *ifp,
int command,
caddr_t data);
int rtems_at91rm9200_emac_attach (
struct rtems_bsdnet_ifconfig *config,
void *chip /* only one ethernet, so no chip number */
)
{
struct ifnet *ifp;
int mtu;
int unitnumber;
char *unitname;
/* an array of receive buffer descriptors */
rxbuf_hdrs = (RXBUF_HDR *)&at91rm9200_emac_rxbuf_hdrs;
/* one transmit buffer, 1536 bytes maximum */
txbuf = (char *)&at91rm9200_emac_txbuf;
/* receive buffers starting address */
rxbuf = (char *)&at91rm9200_emac_rxbufs;
/*
* Parse driver name
*/
if ((unitnumber = rtems_bsdnet_parse_driver_name (config, &unitname)) < 0)
return 0;
/*
* Is driver free?
*/
if (unitnumber != 0) {
printf ("Bad AT91RM9200 EMAC unit number.\n");
return 0;
}
ifp = &softc.arpcom.ac_if;
if (ifp->if_softc != NULL) {
printf ("Driver already in use.\n");
return 0;
}
/*
* zero out the control structure
*/
memset( &softc, 0, sizeof(softc) );
/* get the MAC address from the chip */
softc.arpcom.ac_enaddr[0] = (EMAC_REG(EMAC_SA1L) >> 0) & 0xff;
softc.arpcom.ac_enaddr[1] = (EMAC_REG(EMAC_SA1L) >> 8) & 0xff;
softc.arpcom.ac_enaddr[2] = (EMAC_REG(EMAC_SA1L) >> 16) & 0xff;
softc.arpcom.ac_enaddr[3] = (EMAC_REG(EMAC_SA1L) >> 24) & 0xff;
softc.arpcom.ac_enaddr[4] = (EMAC_REG(EMAC_SA1H) >> 0) & 0xff;
softc.arpcom.ac_enaddr[5] = (EMAC_REG(EMAC_SA1H) >> 8) & 0xff;
if (config->mtu) {
mtu = config->mtu;
} else {
mtu = ETHERMTU;
}
softc.acceptBroadcast = !config->ignore_broadcast;
/*
* Set up network interface values
*/
ifp->if_softc = &softc;
ifp->if_unit = unitnumber;
ifp->if_name = unitname;
ifp->if_mtu = mtu;
ifp->if_init = at91rm9200_emac_init;
ifp->if_ioctl = at91rm9200_emac_ioctl;
ifp->if_start = at91rm9200_emac_start;
ifp->if_output = ether_output;
ifp->if_flags = IFF_BROADCAST;
if (ifp->if_snd.ifq_maxlen == 0) {
ifp->if_snd.ifq_maxlen = ifqmaxlen;
}
softc.rx_buf_idx = 0;
/*
* Attach the interface
*/
if_attach (ifp);
ether_ifattach (ifp);
return 1;
}
void at91rm9200_emac_init(void *arg)
{
at91rm9200_emac_softc_t *sc = arg;
struct ifnet *ifp = &sc->arpcom.ac_if;
/*
*This is for stuff that only gets done once (at91rm9200_emac_init()
* gets called multiple times
*/
if (sc->txDaemonTid == 0) {
/* Set up EMAC hardware */
at91rm9200_emac_init_hw(sc);
/* Start driver tasks */
sc->rxDaemonTid = rtems_bsdnet_newproc("ENrx",
4096,
at91rm9200_emac_rxDaemon,
sc);
sc->txDaemonTid = rtems_bsdnet_newproc("ENtx",
4096,
at91rm9200_emac_txDaemon,
sc);
} /* if txDaemonTid */
/* set our priority in the AIC */
AIC_SMR_REG(AIC_SMR_EMAC) = AIC_SMR_PRIOR(EMAC_INT_PRIORITY);
/* install the interrupt handler */
BSP_install_rtems_irq_handler(&at91rm9200_emac_isr_data);
/* EMAC doesn't support promiscuous, so ignore requests */
if (ifp->if_flags & IFF_PROMISC) {
printf ("Warning - AT91RM9200 Ethernet driver"
" doesn't support Promiscuous Mode!\n");
}
/*
* Tell the world that we're running.
*/
ifp->if_flags |= IFF_RUNNING;
/* Enable TX/RX and clear the statistics counters */
EMAC_REG(EMAC_CTL) = (EMAC_CTL_TE | EMAC_CTL_RE | EMAC_CTL_CSR);
/* clear any pending interrupts */
EMAC_REG(EMAC_TSR) = 0xffffffff;
EMAC_REG(EMAC_RSR) = 0xffffffff;
} /* at91rm9200_emac_init() */
void at91rm9200_emac_init_hw(at91rm9200_emac_softc_t *sc)
{
int i;
/* initialize our receive buffer descriptors */
for (i = 0; i < NUM_RXBDS-1; i++) {
rxbuf_hdrs[i].address = (unsigned long)(&rxbuf[i * RX_BUFFER_SIZE]);
rxbuf_hdrs[i].status = 0x00000000;
}
/* last one needs the wrapbit set as well */
rxbuf_hdrs[i].address = ((unsigned long)(&rxbuf[i * RX_BUFFER_SIZE]) |
RXBUF_ADD_WRAP);
rxbuf_hdrs[i].status = 0x00000000;
/* point to our receive buffer queue */
EMAC_REG(EMAC_RBQP) = (unsigned long)rxbuf_hdrs;
/* clear any left over status bits */
EMAC_REG(EMAC_RSR) &= ~(EMAC_RSR_OVR | EMAC_RSR_REC | EMAC_RSR_BNA);
/* set the MII clock divder to MCK/64 */
EMAC_REG(EMAC_CFG) = (EMAC_CFG_CLK_64 | EMAC_CFG_BIG | EMAC_CFG_FD);
/* enable the MII interface */
EMAC_REG(EMAC_CTL) = EMAC_CTL_MPE;
/* Set PHY LED2 to combined Link/Activity and enable pulse stretching */
EMAC_REG(EMAC_MAN) = (0x01 << 30 | /* Start of Frame Delimiter */
0x01 << 28 | /* Operation, 0x01 = Write */
0x00 << 23 | /* Phy Number */
0x14 << 18 | /* Phy Register */
0x02 << 16 | /* must be 0x02 */
0x0D0A); /* Write data (0x0000 if read) */
} /* at91rm9200_emac_init_hw() */
void at91rm9200_emac_start(struct ifnet *ifp)
{
at91rm9200_emac_softc_t *sc = ifp->if_softc;
rtems_event_send(sc->txDaemonTid, START_TRANSMIT_EVENT);
ifp->if_flags |= IFF_OACTIVE;
}
void at91rm9200_emac_stop (at91rm9200_emac_softc_t *sc)
{
struct ifnet *ifp = &sc->arpcom.ac_if;
ifp->if_flags &= ~IFF_RUNNING;
/*
* Stop the transmitter and receiver.
*/
EMAC_REG(EMAC_CTL) &= ~(EMAC_CTL_TE | EMAC_CTL_RE);
}
/*
* Driver transmit daemon
*/
void at91rm9200_emac_txDaemon (void *arg)
{
at91rm9200_emac_softc_t *sc = (at91rm9200_emac_softc_t *)arg;
struct ifnet *ifp = &sc->arpcom.ac_if;
struct mbuf *m;
rtems_event_set events;
for (;;)
{
/* turn on TX interrupt, then wait for one */
EMAC_REG(EMAC_IER) = EMAC_INT_TCOM; /* Transmit complete */
rtems_bsdnet_event_receive(
START_TRANSMIT_EVENT,
RTEMS_EVENT_ANY | RTEMS_WAIT,
RTEMS_NO_TIMEOUT,
&events);
/* Send packets till queue is empty */
for (;;)
{
/* Get the next mbuf chain to transmit. */
IF_DEQUEUE(&ifp->if_snd, m);
if (!m)
break;
at91rm9200_emac_sendpacket (ifp, m);
}
ifp->if_flags &= ~IFF_OACTIVE;
}
}
/* Send packet */
void at91rm9200_emac_sendpacket (struct ifnet *ifp, struct mbuf *m)
{
struct mbuf *l = NULL;
unsigned int pkt_offset = 0;
delay_cnt = 0;
/* printf("at91rm9200_emac_sendpacket %p\n", m); */
/* Wait for EMAC Transmit Queue to become available. */
while (((EMAC_REG(EMAC_TSR) & EMAC_TSR_COMP) == 0) &&
((EMAC_REG(EMAC_TSR) & EMAC_TSR_TXIDLE) == 0))
{
delay_cnt++;
/* sleep(0); make sure we don't hog the cpu */
continue;
}
/* copy the mbuf chain into the transmit buffer */
l = m;
while (l != NULL) {
memcpy(((char *)txbuf + pkt_offset), /* offset into pkt for mbuf */
(char *)mtod(l, void *), /* cast to void */
l->m_len); /* length of this mbuf */
pkt_offset += l->m_len; /* update offset */
l = l->m_next; /* get next mbuf, if any */
}
/* free the mbuf chain we just copied */
m_freem(m);
/* clear any pending status */
EMAC_REG(EMAC_TSR) = (EMAC_TSR_OVR | EMAC_TSR_COL | EMAC_TSR_RLE
| EMAC_TSR_COMP | EMAC_TSR_UND);
/* tell the EMAC about our buffer */
EMAC_REG(EMAC_TAR) = (unsigned long)txbuf;
EMAC_REG(EMAC_TCR) = (unsigned long)pkt_offset;
} /* at91rm9200_emac_sendpacket () */
/* SONIC reader task */
void at91rm9200_emac_rxDaemon(void *arg)
{
at91rm9200_emac_softc_t *sc = (at91rm9200_emac_softc_t *)arg;
struct ifnet *ifp = &sc->arpcom.ac_if;
struct mbuf *m;
struct ether_header *eh;
rtems_event_set events;
int pktlen;
/* Input packet handling loop */
for (;;) {
/* turn on RX interrupts, then wait for one */
EMAC_REG(EMAC_IER) = (EMAC_INT_RCOM | /* Receive complete */
EMAC_INT_RBNA | /* Receive buf not available */
EMAC_INT_ROVR); /* Receive overrun */
rtems_bsdnet_event_receive(
START_RECEIVE_EVENT,
RTEMS_EVENT_ANY | RTEMS_WAIT,
RTEMS_NO_TIMEOUT,
&events);
if (EMAC_REG(EMAC_RSR) & EMAC_RSR_BNA) {
printf("1: EMAC_BNA\n");
}
if (EMAC_REG(EMAC_RSR) & EMAC_RSR_OVR) {
printf("1: EMAC_OVR\n");
}
/* clear the receive status as we do not use it anyway */
EMAC_REG(EMAC_RSR) = (EMAC_RSR_REC | EMAC_RSR_OVR | EMAC_RSR_BNA);
/* scan the buffer descriptors looking for any with data in them */
while (rxbuf_hdrs[sc->rx_buf_idx].address & RXBUF_ADD_OWNED) {
pktlen = rxbuf_hdrs[sc->rx_buf_idx].status & RXBUF_STAT_LEN_MASK;
/* get an mbuf this packet */
MGETHDR(m, M_WAIT, MT_DATA);
/* now get a cluster pointed to by the mbuf */
/* since an mbuf by itself is too small */
MCLGET(m, M_WAIT);
/* set the type of mbuf to ifp (ethernet I/F) */
m->m_pkthdr.rcvif = ifp;
m->m_nextpkt = 0;
/* copy the packet into the cluster pointed to by the mbuf */
memcpy((char *)m->m_ext.ext_buf,
(char *)(rxbuf_hdrs[sc->rx_buf_idx].address & 0xfffffffc),
pktlen);
/* Release the buffer ASAP back to the EMAC */
rxbuf_hdrs[sc->rx_buf_idx].address &= ~RXBUF_ADD_OWNED;
/* set the length of the mbuf */
m->m_len = pktlen - (sizeof(struct ether_header) + 4);
m->m_pkthdr.len = m->m_len;
/* strip off the ethernet header from the mbuf */
/* but save the pointer to it */
eh = mtod (m, struct ether_header *);
m->m_data += sizeof(struct ether_header);
/* increment the buffer index */
sc->rx_buf_idx++;
if (sc->rx_buf_idx >= NUM_RXBDS) {
sc->rx_buf_idx = 0;
}
/* give all this stuff to the stack */
ether_input(ifp, eh, m);
} /* while ADD_OWNED = 0 */
if (EMAC_REG(EMAC_RSR) & EMAC_RSR_BNA) {
printf("2:EMAC_BNA\n");
}
if (EMAC_REG(EMAC_RSR) & EMAC_RSR_OVR) {
printf("2:EMAC_OVR\n");
}
} /* for (;;) */
} /* at91rm9200_emac_rxDaemon() */
/* Show interface statistics */
void at91rm9200_emac_stats (at91rm9200_emac_softc_t *sc)
{
printf (" Total Interrupts:%-8lu", sc->Interrupts);
printf (" Rx Interrupts:%-8lu", sc->rxInterrupts);
printf (" Giant:%-8lu", sc->rxGiant);
printf (" Non-octet:%-8lu\n", sc->rxNonOctet);
printf (" Bad CRC:%-8lu", sc->rxBadCRC);
printf (" Collision:%-8lu", sc->rxCollision);
printf (" Missed:%-8lu\n", sc->rxMissed);
printf ( " Tx Interrupts:%-8lu", sc->txInterrupts);
printf ( " Deferred:%-8lu", sc->txDeferred);
printf (" Lost Carrier:%-8lu\n", sc->txLostCarrier);
printf ( "Single Collisions:%-8lu", sc->txSingleCollision);
printf ( "Multiple Collisions:%-8lu", sc->txMultipleCollision);
printf ("Excessive Collisions:%-8lu\n", sc->txExcessiveCollision);
printf ( " Total Collisions:%-8lu", sc->txCollision);
printf ( " Late Collision:%-8lu", sc->txLateCollision);
printf (" Underrun:%-8lu\n", sc->txUnderrun);
printf ( " Raw output wait:%-8lu\n", sc->txRawWait);
}
/* Enables at91rm9200_emac interrupts. */
static void at91rm9200_emac_isr_on(const rtems_irq_connect_data *unused)
{
/* Enable various TX/RX interrupts */
EMAC_REG(EMAC_IER) = (EMAC_INT_RCOM | /* Receive complete */
EMAC_INT_RBNA | /* Receive buffer not available */
EMAC_INT_TCOM | /* Transmit complete */
EMAC_INT_ROVR | /* Receive overrun */
EMAC_INT_ABT); /* Abort on DMA transfer */
return;
}
/* Disables at91rm9200_emac interrupts */
static void at91rm9200_emac_isr_off(const rtems_irq_connect_data *unused)
{
/* disable all various TX/RX interrupts */
EMAC_REG(EMAC_IDR) = 0xffffffff;
return;
}
/* Tests to see if at91rm9200_emac interrupts are enabled, and
* returns non-0 if so.
* If interrupt is not enabled, returns 0.
*/
static int at91rm9200_emac_isr_is_on(const rtems_irq_connect_data *irq)
{
return EMAC_REG(EMAC_IMR); /* any interrupts enabled? */
}
/* Driver ioctl handler */
static int
at91rm9200_emac_ioctl (struct ifnet *ifp, int command, caddr_t data)
{
at91rm9200_emac_softc_t *sc = ifp->if_softc;
int error = 0;
switch (command) {
case SIOCGIFADDR:
case SIOCSIFADDR:
ether_ioctl (ifp, command, data);
break;
case SIOCSIFFLAGS:
switch (ifp->if_flags & (IFF_UP | IFF_RUNNING))
{
case IFF_RUNNING:
at91rm9200_emac_stop (sc);
break;
case IFF_UP:
at91rm9200_emac_init (sc);
break;
case IFF_UP | IFF_RUNNING:
at91rm9200_emac_stop (sc);
at91rm9200_emac_init (sc);
break;
default:
break;
} /* switch (if_flags) */
break;
case SIO_RTEMS_SHOW_STATS:
at91rm9200_emac_stats (sc);
break;
/*
* FIXME: All sorts of multicast commands need to be added here!
*/
default:
error = EINVAL;
break;
} /* switch (command) */
return error;
}
/* interrupt handler */
rtems_isr at91rm9200_emac_isr (rtems_vector_number v)
{
unsigned long status32;
/* get the ISR status and determine RX or TX */
status32 = EMAC_REG(EMAC_ISR);
if (status32 & EMAC_INT_ABT) {
EMAC_REG(EMAC_IDR) = EMAC_INT_ABT; /* disable it */
rtems_panic("AT91RM9200 Ethernet MAC has received an Abort.\n");
}
if (status32 & (EMAC_INT_RCOM | /* Receive complete */
EMAC_INT_RBNA | /* Receive buffer not available */
EMAC_INT_ROVR)) { /* Receive overrun */
/* disable the RX interrupts */
EMAC_REG(EMAC_IDR) = (EMAC_INT_RCOM | /* Receive complete */
EMAC_INT_RBNA | /* Receive buf not available */
EMAC_INT_ROVR); /* Receive overrun */
rtems_event_send (softc.rxDaemonTid, START_RECEIVE_EVENT);
}
if (status32 & EMAC_INT_TCOM) { /* Transmit buffer register empty */
/* disable the TX interrupts */
EMAC_REG(EMAC_IDR) = EMAC_INT_TCOM;
rtems_event_send (softc.txDaemonTid, START_TRANSMIT_EVENT);
}
}

14
c/src/lib/libbsp/arm/csb337/start/.cvsignore Normal file
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Makefile
Makefile.in
aclocal.m4
autom4te.cache
config.cache
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
missing
mkinstalldirs

147
c/src/lib/libbsp/arm/csb337/start/start.S Normal file
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/*
* Cogent CSB337 startup code
*
* Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
*
* 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.
*
*
* $Id$
*/
/* Some standard definitions...*/
.equ PSR_MODE_USR, 0x10
.equ PSR_MODE_FIQ, 0x11
.equ PSR_MODE_IRQ, 0x12
.equ PSR_MODE_SVC, 0x13
.equ PSR_MODE_ABT, 0x17
.equ PSR_MODE_UNDEF, 0x1B
.equ PSR_MODE_SYS, 0x1F
.equ PSR_I, 0x80
.equ PSR_F, 0x40
.equ PSR_T, 0x20
.text
.globl _start
_start:
/*
* Since I don't plan to return to the bootloader,
* I don't have to save the registers.
*
* I'll just set the CPSR for SVC mode, interrupts
* off, and ARM instructions.
*/
mov r0, #(PSR_MODE_SVC | PSR_I | PSR_F)
msr cpsr, r0
/* zero the bss */
ldr r1, =_bss_end_
ldr r0, =_bss_start_
_bss_init:
mov r2, #0
cmp r0, r1
strlot r2, [r0], #4
blo _bss_init /* loop while r0 < r1 */
/* --- Initialize stack pointer registers */
/* Enter IRQ mode and set up the IRQ stack pointer */
mov r0, #(PSR_MODE_IRQ | PSR_I | PSR_F) /* No interrupts */
msr cpsr, r0
ldr r1, =_irq_stack_size
ldr sp, =_irq_stack
add sp, sp, r1
/* Enter FIQ mode and set up the FIQ stack pointer */
mov r0, #(PSR_MODE_FIQ | PSR_I | PSR_F) /* No interrupts */
msr cpsr, r0
ldr r1, =_fiq_stack_size
ldr sp, =_fiq_stack
add sp, sp, r1
/* Enter ABT mode and set up the ABT stack pointer */
mov r0, #(PSR_MODE_ABT | PSR_I | PSR_F) /* No interrupts */
msr cpsr, r0
ldr r1, =_abt_stack_size
ldr sp, =_abt_stack
add sp, sp, r1
/* Set up the SVC stack pointer last and stay in SVC mode */
mov r0, #(PSR_MODE_SVC | PSR_I | PSR_F) /* No interrupts */
msr cpsr, r0
ldr r1, =_svc_stack_size
ldr sp, =_svc_stack
add sp, sp, r1
sub sp, sp, #0x64
/*
* Initialize the MMU. After we return, the MMU is enabled,
* and memory may be remapped. I hope we don't remap this
* memory away.
*/
ldr r0, =mem_map
bl mmu_init
/*
* Initialize the exception vectors. This includes the
* exceptions vectors (0x00000000-0x0000001c), and the
* pointers to the exception handlers (0x00000020-0x0000003c).
*/
mov r0, #0
adr r1, vector_block
ldmia r1!, {r2-r9}
stmia r0!, {r2-r9}
ldmia r1!, {r2-r9}
stmia r0!, {r2-r9}
/* Now we are prepared to start the BSP's C code */
bl boot_card
/*
* Theoretically, we could return to what started us up,
* but we'd have to have saved the registers and stacks.
* Instead, we'll just reset.
*/
bl bsp_reset
/* We shouldn't get here. If we do, hang */
_hang: b _hang
/*
* This is the exception vector table and the pointers to
* the functions that handle the exceptions. It's a total
* of 16 words (64 bytes)
*/
vector_block:
ldr pc, Reset_Handler
ldr pc, Undefined_Handler
ldr pc, SWI_Handler
ldr pc, Prefetch_Handler
ldr pc, Abort_Handler
nop
ldr pc, IRQ_Handler
ldr pc, FIQ_Handler
Reset_Handler: b bsp_reset
Undefined_Handler: b Undefined_Handler
SWI_Handler: b SWI_Handler
Prefetch_Handler: b Prefetch_Handler
Abort_Handler: b Abort_Handler
nop
IRQ_Handler: b IRQ_Handler
FIQ_Handler: b FIQ_Handler
.globl Reset_Handler
.globl Undefined_Handler
.globl SWI_Handler
.globl Prefetch_Handler
.globl Abort_Handler
.globl IRQ_Handler
.globl FIQ_Handler

14
c/src/lib/libbsp/arm/csb337/startup/.cvsignore Normal file
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@@ -0,0 +1,14 @@
Makefile
Makefile.in
aclocal.m4
autom4te.cache
config.cache
config.guess
config.log
config.status
config.sub
configure
depcomp
install-sh
missing
mkinstalldirs

206
c/src/lib/libbsp/arm/csb337/startup/bspstart.c Normal file
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/*
* Cogent CSB337 - AT91RM9200 Startup code
*
* Copyright (c) 2004 by Cogent Computer Systems
* Written by Jay Monkman <jtm@lopingdog.com>
*
* 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/libcsupport.h>
#include <rtems/libio.h>
#include <at91rm9200.h>
#include <at91rm9200_pmc.h>
#include <at91rm9200_emac.h>
/* Global Variables */
extern void *_flash_size;
extern void *_flash_base;
extern void *_sdram_size;
extern void *_sdram_base;
extern void *_bss_free_start;
unsigned long free_mem_start;
unsigned long free_mem_end;
rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table;
char *rtems_progname = "RTEMS";
/* Function prototypes */
extern void rtems_irq_mngt_init(void);
void bsp_libc_init( void *, unsigned32, int );
void bsp_postdriver_hook(void);
static void fix_mac_addr();
/**************************************************************************/
/* */
/* NAME: bsp_pretasking_hook - Function to setup system before startup */
/* */
/* DESCRIPTION: */
/* This function is called before drivers are initialized and used */
/* to setup libc and BSP extensions. */
/* */
/* RESTRICTIONS/LIMITATIONS: */
/* Since this function is setting up libc, it cannot use and libc */
/* functions. */
/* */
/**************************************************************************/
void bsp_pretasking_hook(void)
{
unsigned32 heap_start;
unsigned32 heap_size;
/*
* Set up the heap.
*/
heap_start = free_mem_start;
heap_size = free_mem_end - free_mem_start;
/* call rtems lib init - malloc stuff */
bsp_libc_init((void *)heap_start, heap_size, 0);
#ifdef RTEMS_DEBUG
rtems_debug_enable(RTEMS_DEBUG_ALL_MASK);
#endif /* RTEMS_DEBUG */
}
/**************************************************************************/
/* */
/* NAME: bsp_start_default - BSP initialization function */
/* */
/* DESCRIPTION: */
/* This function is called before RTEMS is initialized and used */
/* adjust the kernel's configuration. */
/* */
/* This function also configures the CPU's memory protection unit. */
/* */
/* RESTRICTIONS/LIMITATIONS: */
/* Since RTEMS is not configured, no RTEMS functions can be called. */
/* */
/**************************************************************************/
void bsp_start_default( void )
{
/* disable interrupts */
AIC_CTL_REG(AIC_IDCR) = 0xffffffff;
/*
* Some versions of the bootloader have the MAC address
* reversed. This fixes it, if necessary.
*/
fix_mac_addr();
/* tell RTEMS about the hooks we are using */
Cpu_table.pretasking_hook = bsp_pretasking_hook;
Cpu_table.postdriver_hook = bsp_postdriver_hook;
/* tell RTEMS to clear the workspace */
Cpu_table.do_zero_of_workspace = TRUE;
/* Place RTEMS workspace at beginning of free memory. */
BSP_Configuration.work_space_start = (void *)&_bss_free_start;
free_mem_start = ((unsigned32)&_bss_free_start +
BSP_Configuration.work_space_size);
free_mem_end = ((unsigned32)&_sdram_base + (unsigned32)&_sdram_size);
/*
* 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\r",
BSP_Configuration.work_space_size );
printk( "maximum_extensions = 0x%x\n\r",
BSP_Configuration.maximum_extensions );
printk( "microseconds_per_tick = 0x%x\n\r",
BSP_Configuration.microseconds_per_tick );
printk( "ticks_per_timeslice = 0x%x\n\r",
BSP_Configuration.ticks_per_timeslice );
printk( "maximum_devices = 0x%x\n\r",
BSP_Configuration.maximum_devices );
printk( "number_of_device_drivers = 0x%x\n\r",
BSP_Configuration.number_of_device_drivers );
printk( "Device_driver_table = 0x%x\n\r",
BSP_Configuration.Device_driver_table );
printk( "work_space_start = 0x%x\n\r",
BSP_Configuration.work_space_start );
printk( "work_space_size = 0x%x\n\r",
BSP_Configuration.work_space_size );
#endif
} /* bsp_start */
/*
* Some versions of the bootloader shipped with the CSB337
* reverse the MAC address. This function tests for that,
* and fixes the MAC address.
*/
static void fix_mac_addr()
{
uint8_t addr[6];
/* Read the MAC address */
addr[0] = (EMAC_REG(EMAC_SA1L) >> 0) & 0xff;
addr[1] = (EMAC_REG(EMAC_SA1L) >> 8) & 0xff;
addr[2] = (EMAC_REG(EMAC_SA1L) >> 16) & 0xff;
addr[3] = (EMAC_REG(EMAC_SA1L) >> 24) & 0xff;
addr[4] = (EMAC_REG(EMAC_SA1H) >> 0) & 0xff;
addr[5] = (EMAC_REG(EMAC_SA1H) >> 8) & 0xff;
/* Check which 3 bytes have Cogent's OUI */
if ((addr[5] == 0x00) && (addr[4] == 0x23) && (addr[3] == 0x31)) {
EMAC_REG(EMAC_SA1L) = ((addr[5] << 0) |
(addr[4] << 8) |
(addr[3] << 16) |
(addr[2] << 24));
EMAC_REG(EMAC_SA1H) = ((addr[1] << 0) |
(addr[0] << 8));
}
}
/*
* 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")));
/**
* Reset the system.
*
* This functions enables the watchdog and waits for it to
* fire, thus resetting the system.
*/
void bsp_reset(void)
{
rtems_interrupt_level level;
_CPU_ISR_Disable(level);
/* Enable the watchdog timer, then wait for the world to end. */
ST_REG(ST_WDMR) = ST_WDMR_RSTEN | 1;
while(1);
}

37
c/src/lib/libbsp/arm/csb337/startup/exit.c Normal file
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/*
* Cogent CSB337 Shutdown code
*
* Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
*
* 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 <stdio.h>
#include <bsp.h>
#include <rtems/bspIo.h>
#include <rtems/libio.h>
int dbgu_poll_read(int);
void rtemsReboot (void)
{
asm volatile ("b _start");
}
void bsp_cleanup(void)
{
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);
while (dbgu_poll_read(0) < 0) continue;
}

227
c/src/lib/libbsp/arm/csb337/startup/linkcmds Normal file
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/*
* Cogent CSB337 Linker script
*
* Copyright (c) 2004 by Jay Monkman <jtm@lopingdog.com>
*
* 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.
*
*
* $Id$
*/
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm",
"elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
MEMORY
{
sdram : ORIGIN = 0x20100000, LENGTH = 15M
sram : ORIGIN = 0x00200000, LENGTH = 16K
}
/*
* Declare some sizes.
*/
_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0x20100000;
_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 15M;
_sram_base = DEFINED(_sram_base) ? _sram_base : 0x00000000;
_sram_size = DEFINED(_sram_size) ? _sram_size : 16K;
_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x1000;
_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x400;
_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x100;
_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x1000;
/* Do we need any of these for elf?
__DYNAMIC = 0; */
SECTIONS
{
.base :
{
_sram_base = .;
/* reserve room for the vectors and function pointers */
arm_exception_table = .;
. += 64;
/* 256 byte aligned rx buffer header array */
. = ALIGN (0x100);
at91rm9200_emac_rxbuf_hdrs = .;
/* 1 transmit buffer, 0x600 size */
. += (0x100);
at91rm9200_emac_txbuf = .;
. += (0x600);
/* 4 receive buffers, 0x600 each */
at91rm9200_emac_rxbufs = .;
. += (0x600 * 8);
} > sram
.init :
{
KEEP (*(.init))
} > sdram /*=0*/
.text :
{
_text_start = .;
CREATE_OBJECT_SYMBOLS
*(.text)
*(.text.*)
/*
* Special FreeBSD sysctl sections.
*/
. = ALIGN (16);
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = ABSOLUTE(.);
*(set_domain_*);
*(set_pseudo_*);
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
*(.glue_7)
*(.glue_7t)
/* I think these come from the ld docs: */
___CTOR_LIST__ = .;
LONG((___CTOR_END__ - ___CTOR_LIST__) / 4 - 2)
*(.ctors)
LONG(0)
___CTOR_END__ = .;
___DTOR_LIST__ = .;
LONG((___DTOR_END__ - ___DTOR_LIST__) / 4 - 2)
*(.dtors)
LONG(0)
___DTOR_END__ = .;
_etext = .;
PROVIDE (etext = .);
} > sdram
.fini :
{
KEEP (*(.fini))
} > sdram /*=0*/
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
*(.jcr)
SORT(CONSTRUCTORS)
_edata = .;
} > sdram
.eh_frame : { *(.eh_frame) } > RAM
.data1 : { *(.data1) } > RAM
.eh_frame : { *(.eh_frame) } > RAM
.gcc_except_table : { *(.gcc_except_table) } > RAM
.rodata :
{
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
} > sdram
.bss :
{
_bss_start_ = .;
_clear_start = .;
*(.bss)
*(.bss.*)
*(COMMON)
. = ALIGN(64);
_clear_end = .;
. = ALIGN (256);
_abt_stack = .;
. += _abt_stack_size;
. = ALIGN (256);
_irq_stack = .;
. += _irq_stack_size;
. = ALIGN (256);
_fiq_stack = .;
. += _fiq_stack_size;
. = ALIGN (256);
_svc_stack = .;
. += _svc_stack_size;
_bss_end_ = .;
_end = .;
__end = .;
/*
* Ideally, the MMU's translation table would be in SRAM. But we need
* 16K which is the size of SRAM. If we do the mapping right, the TLB
* should be big enough that to hold all the translations that matter,
* so keeping the table in SDRAM won't be a problem.
*/
. = ALIGN (16 * 1024);
_ttbl_base = .;
. += (16 * 1024);
. = ALIGN (1024);
_bss_free_start = .;
} > sdram
/* Debugging stuff follows? */
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* 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) }
/* .stack 0x80000 : { _stack = .; *(.stack) }*/
/* These must appear regardless of . */
}

29
c/src/lib/libbsp/arm/csb337/startup/memmap.c Normal file
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/*
* CSB337 Memory Map
*
* Copyright (c) 2004 by Cogent Computer Systems
* Written by Jay Monkman <jtm@lopingdog.com>
*
* $Id$
*/
#include <rtems.h>
#include <libcpu/mmu.h>
/* Remember, the ARM920 has 64 TLBs. If you have more 1MB sections than
* that, you'll have TLB lookups, which could hurt performance.
*/
mmu_sect_map_t mem_map[] = {
/* <phys addr> <virt addr> <size> <flags> */
{0x00200000, 0x00000000, 1, MMU_CACHE_NONE}, /* SRAM */
{0x00200000, 0x00200000, 1, MMU_CACHE_NONE}, /* SRAM */
{0x10000000, 0x10000000, 8, MMU_CACHE_NONE}, /* FLASH */
{0x20000000, 0x20000000, 32, MMU_CACHE_WTHROUGH}, /* SDRAM */
{0x30000000, 0x30000000, 1, MMU_CACHE_NONE}, /* video */
{0x40000000, 0x40000000, 1, MMU_CACHE_NONE}, /* Expansion CS0 */
{0x50000000, 0x50000000, 1, MMU_CACHE_NONE}, /* CF CE 1 */
{0x60000000, 0x60000000, 1, MMU_CACHE_NONE}, /* CF CE 1 */
{0x70000000, 0x70000000, 1, MMU_CACHE_NONE}, /* CF CE 2 */
{0x80000000, 0x80000000, 1, MMU_CACHE_NONE}, /* Expansion CS0 */
{0xfff00000, 0xfff00000, 1, MMU_CACHE_NONE}, /* Internal regs */
{0x00000000, 0x00000000, 0, 0} /* The end */
};

189
c/src/lib/libbsp/arm/csb337/times Normal file
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#
# Timing Test Suite Results for the Cogent CSB337 AT91RM9200 based SBC.
#
#
#
Board: Cogent CSB337
CPU: AT91RM200 - ARM920T
Clock Speed: 184 MHz
Memory Configuration: SDRAM, 32 bits wide
Times Reported in: nanoseconds
Timer Source: TC0, using timer_clock2 - 173 ns resolution
All tests were compiled with VARIANT=DEBUG
cache state: none I only both
== =================================================================== ======= ======= =======
1 rtems_semaphore_create 25258 24220 14878
1 rtems_semaphore_delete 25604 25777 15570
1 rtems_semaphore_obtain: available 8227 8227 2876
1 rtems_semaphore_obtain: not available -- NO_WAIT 8228 8228 2876
1 rtems_semaphore_release: no waiting tasks 14718 14718 5947
2 rtems_semaphore_obtain: not available -- caller blocks 42779 42803 19163
3 rtems_semaphore_release: task readied -- preempts caller 32518 32522 15196
4 rtems_task_restart: blocked task -- preempts caller 76466 75255 42731
4 rtems_task_restart: ready task -- preempts caller 71276 71622 35638
4 rtems_semaphore_release: task readied -- returns to caller 21202 21218 9188
4 rtems_task_create 76725 76753 34138
4 rtems_task_start 30470 30468 12108
4 rtems_task_restart: suspended task -- returns to caller 35973 35937 14440
4 rtems_task_delete: suspended task 65546 65528 30141
4 rtems_task_restart: ready task -- returns to caller 37046 37087 14654
4 rtems_task_restart: blocked task -- returns to caller 43506 43549 18857
4 rtems_task_delete: blocked task 68155 68110 31268
5 rtems_task_suspend: calling task 34020 33985 14128
5 rtems_task_resume: task readied -- preempts caller 27956 27942 11641
6 rtems_task_restart: calling task 45360 45360 14846
6 rtems_task_suspend: returns to caller 15398 15393 6722
6 rtems_task_resume: task readied -- returns to caller 17206 17211 6544
6 rtems_task_delete: ready task 68696 68681 31434
7 rtems_task_restart: suspended task -- preempts caller 54129 54104 22877
8 rtems_task_set_priority: obtain current priority 10869 10867 4267
8 rtems_task_set_priority: returns to caller 25368 25351 8487
8 rtems_task_mode: obtain current mode 5835 5830 2501
8 rtems_task_mode: no reschedule 5998 5995 2645
8 rtems_task_mode: reschedule -- returns to caller 12110 11764 6055
8 rtems_task_mode: reschedule -- preempts caller 33043 34773 18338
8 rtems_task_set_note 11869 11871 4356
8 rtems_task_get_note 12092 12087 4397
8 rtems_clock_set 33141 33145 10160
8 rtems_clock_get 2920 2921 811
9 rtems_message_queue_create 74390 75601 46883
9 rtems_message_queue_send: no waiting tasks 20387 20387 8702
9 rtems_message_queue_urgent: no waiting tasks 20379 20379 8632
9 rtems_message_queue_receive: available 22941 22941 8487
9 rtems_message_queue_flush: no messages flushed 13459 13455 5932
9 rtems_message_queue_flush: messages flushed 15808 15794 6802
9 rtems_message_queue_delete 32351 33043 20414
10 rtems_message_queue_receive: not available -- NO_WAIT 14282 14296 4859
10 rtems_message_queue_receive: not available -- caller blocks 43862 43794 19374
11 rtems_message_queue_send: task readied -- preempts caller 35025 35054 16997
12 rtems_message_queue_send: task readied -- returns to caller 24213 24194 11113
13 rtems_message_queue_urgent: task readied -- preempts caller 35004 24190 17099
14 rtems_message_queue_urgent: task readied -- returns to caller 24190 35042 11087
15 rtems_event_receive: obtain current events 1847 1849 560
15 rtems_event_receive: not available -- NO_WAIT 10207 10210 3541
15 rtems_event_receive: not available -- caller blocks 36305 36444 16165
15 rtems_event_send: no task readied 10879 10871 4055
15 rtems_event_receive: available 14359 14705 7439
15 rtems_event_send: task readied -- returns to caller 20730 20727 9674
16 rtems_event_send: task readied -- preempts caller 33179 33210 15246
17 rtems_task_set_priority: preempts caller 44149 44232 18573
18 rtems_task_delete: calling task 85693 85685 38982
19 rtems_signal_catch 11418 11764 6401
19 rtems_signal_send: returns to caller 20414 20414 14705
19 rtems_signal_send: signal to self 33043 33043 23182
19 exit ASR overhead: returns to calling task 18684 18857 11591
19 exit ASR overhead: returns to preempting task 27680 26988 13321
20 rtems_partition_create 30621 31486 20587
20 rtems_region_create 47921 46710 29410
20 rtems_partition_get_buffer: available 16435 16781 12283
20 rtems_partition_get_buffer: not available 13840 13494 6228
20 rtems_partition_return_buffer 18338 18684 10207
20 rtems_partition_delete 19203 21279 10380
20 rtems_region_get_segment: available 36849 36676 16608
20 rtems_region_get_segment: not available -- NO_WAIT 35984 35119 17819
20 rtems_region_return_segment: no waiting tasks 34254 34254 15916
20 rtems_region_get_segment: not available -- caller blocks 76639 76639 42385
20 rtems_region_return_segment: task readied -- preempts caller 71968 73006 37714
20 rtems_region_return_segment: task readied -- returns to caller 58128 57263 24220
20 rtems_region_delete 37368 38060 22144
20 rtems_io_initialize 3807 3788 1332
20 rtems_io_open 2565 2560 854
20 rtems_io_close 2565 2558 863
20 rtems_io_read 2560 2550 852
20 rtems_io_write 2638 2638 908
20 rtems_io_control 2556 2556 854
21 rtems_task_ident 88425 88427 41471
21 rtems_message_queue_ident 85875 85887 40243
21 rtems_semaphore_ident 98762 98763 46357
21 rtems_partition_ident 85825 85816 40255
21 rtems_region_ident 87409 87413 41071
21 rtems_port_ident 85567 85551 40167
21 rtems_timer_ident 85801 85795 40289
21 rtems_rate_monotonic_ident 85787 85780 40315
22 rtems_message_queue_broadcast: task readied -- returns to caller 39271 38752 26469
22 rtems_message_queue_broadcast: no waiting tasks 15305 15308 6406
22 rtems_message_queue_broadcast: task readied -- preempts caller 43077 43250 22144
23 rtems_timer_create 11144 11151 4421
23 rtems_timer_fire_after: inactive 22863 22848 7918
23 rtems_timer_fire_after: active 25072 25074 8092
23 rtems_timer_cancel: active 13078 13073 4392
23 rtems_timer_cancel: inactive 10834 10841 3710
23 rtems_timer_reset: inactive 22254 22242 7096
23 rtems_timer_reset: active 24450 24446 7608
23 rtems_timer_fire_when: inactive 33001 33008 10186
23 rtems_timer_fire_when: active 33004 33025 10148
23 rtems_timer_delete: active 17280 17289 5580
23 rtems_timer_delete: inactive 15102 15099 5006
23 rtems_task_wake_when 51777 51825 20185
24 rtems_task_wake_after: yield -- returns to caller 8205 8208 2932
24 rtems_task_wake_after: yields -- preempts caller 27998 28006 11879
25 rtems_clock_tick 14878 14878 11764
26 _ISR_Disable 4325 4325 3806
26 _ISR_Flash 3633 3633 2768
26 _ISR_Enable 3806 3806 2595
26 _Thread_Disable_dispatch 4325 4498 2941
26 _Thread_Enable_dispatch 8131 7958 4325
26 _Thread_Set_state 14705 15051 6055
26 _Thread_Disptach (NO FP) 24047 25258 13840
26 context switch: no floating point contexts 16781 17127 11418
26 context switch: self 4671 4671 3287
26 context switch: to another task 5363 5536 3806
26 fp context switch: restore 1st FP task - NA NA NA
26 fp context switch: save idle, restore initialized - NA NA NA
26 fp context switch: save idle, restore idle - NA NA NA
26 fp context switch: save initialized, restore initialized - NA NA NA
26 _Thread_Resume 14705 14705 10034
26 _Thread_Unblock 13840 14186 8304
26 _Thread_Ready 13148 13148 5190
26 _Thread_Get 4909 4916 2003
26 _Semaphore_Get 3430 3427 1055
26 _Thread_Get: invalid id 1809 1807 998
27 interrupt entry overhead: returns to interrupted task 0 0 0
27 interrupt exit overhead: returns to interrupted task 0 0 0
27 interrupt entry overhead: returns to nested interrupt 0 0 0
27 interrupt exit overhead: returns to nested interrupt 0 0 0
28 rtems_port_create 19722 20414 12283
28 rtems_port_external_to_internal 10392 10393 3361
28 rtems_port_internal_to_external 10397 10390 3325
28 rtems_port_delete 18511 19376 10726
29 rtems_rate_monotonic_create 20414 20241 12629
29 rtems_rate_monotonic_period: initiate period -- returns to caller 32178 32351 21106
29 rtems_rate_monotonic_period: obtain status 15051 14532 6920
29 rtems_rate_monotonic_cancel 21971 22317 12283
29 rtems_rate_monotonic_delete: inactive 22490 21971 11591
29 rtems_rate_monotonic_delete: active 22490 21452 8131
29 rtems_rate_monotonic_period: conclude periods -- caller blocks 29652 29750 12897