[PATCH] Add raspberry pi board BSP
Joel Sherrill
joel.sherrill at OARcorp.com
Mon Feb 25 16:29:41 UTC 2013
On 2/25/2013 10:17 AM, Cudmore, Alan P. (GSFC-5820) wrote:
> I'm just learning Git, but wouldn't it be nice if RTEMS developers could fork a repo, make changes and have an online code review using a tool like Gerrit? http://code.google.com/p/gerrit/
Yes! It is on my wishlist. :)
I think it would make BSP reviews, GSOC, GCI, etc. easier.
My understanding is that we want a Buildbot in place before putting
an online code review took in the workflow.
--joel
> Alan
>
> On Feb 25, 2013, at 10:06 AM, Gedare Bloom <gedare at rtems.org> wrote:
>
>> Hi Alan,
>>
>> I've made a few comments. Some repeated issues are the $Id$ which we
>> got rid of now, and there were a lot of copy-pasted file comments that
>> might be a little inaccurate, or that you should update the copyright
>> and add your own authorship info to.
>>
>> -Gedare
>>
>> On Sun, Feb 24, 2013 at 8:41 PM, Cudmore, Alan P. (GSFC-5820)
>> <alan.p.cudmore at nasa.gov> wrote:
>>> This patch is my Raspberry Pi BSP.
>>> - Based on the lpc32xx BSP ( no libcpu ). I removed the MMU setup code, it could probably be added back in
>>> - Interrupt driven console code is included, but does not work yet. The polled driver works.
>>> - The benchmark timer driver does not work yet, I was trying to troubleshoot that this weekend.
>>> - It was compiled and tested with the rtems-4.11 ( non-eabi ) toolchain.
>>>
>>> Alan
>>>
>>> ---------------
>>> diff --git a/c/src/lib/libbsp/arm/acinclude.m4 b/c/src/lib/libbsp/arm/acinclude.m4
>>> index 9512b26..82aba6f 100644
>>> --- a/c/src/lib/libbsp/arm/acinclude.m4
>>> +++ b/c/src/lib/libbsp/arm/acinclude.m4
>>> @@ -24,6 +24,8 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
>>> AC_CONFIG_SUBDIRS([lpc32xx]);;
>>> nds )
>>> AC_CONFIG_SUBDIRS([nds]);;
>>> + raspberry_pi )
>>> + AC_CONFIG_SUBDIRS([raspberry_pi]);;
>> do we have any other BSPs with an underscore in the name? maybe just
>> "raspberrypi" or even just "pi" would be ok?
>>
>>> rtl22xx )
>>> AC_CONFIG_SUBDIRS([rtl22xx]);;
>>> smdk2410 )
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/ChangeLog b/c/src/lib/libbsp/arm/raspberry_pi/ChangeLog
>>> new file mode 100755
>>> index 0000000..3b85dbb
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/ChangeLog
>>> @@ -0,0 +1,4 @@
>>> +2013-02-15 Alan Cudmores <alan.cudmore at gmail.com>
>>> +
>>> + * created raspberry_pi bsp from lpc32xx
>>> +
>> We don't use ChangeLog anymore. Instead we rely on git commit messages.
>>
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/Makefile.am b/c/src/lib/libbsp/arm/raspberry_pi/Makefile.am
>>> new file mode 100755
>>> index 0000000..f19ad95
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/Makefile.am
>>> @@ -0,0 +1,151 @@
>>> +##
>>> +#
>>> +# @file
>>> +#
>>> +# @brief Makefile of LibBSP for the raspberry_pi board.
>>> +#
>>> +
>>> +# $Id: Makefile.am,v 1.5 2010/05/20 13:15:35 sh Exp $
>> We don't use $Id$ anymore. Please remove any of these.
>>
>>> +
>>> +ACLOCAL_AMFLAGS = -I ../../../../aclocal
>>> +
>>> +include $(top_srcdir)/../../../../automake/compile.am
>>> +
>>> +include_bspdir = $(includedir)/bsp
>>> +include_libcpudir = $(includedir)/libcpu
>>> +
>>> +dist_project_lib_DATA = bsp_specs
>>> +
>>> +###############################################################################
>>> +# Header #
>>> +###############################################################################
>>> +
>>> +include_HEADERS = include/bsp.h
>>> +include_HEADERS += ../../shared/include/tm27.h
>>> +
>>> +nodist_include_HEADERS = ../../shared/include/coverhd.h \
>>> + include/bspopts.h
>>> +
>>> +nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
>>> +
>>> +include_bsp_HEADERS =
>>> +include_bsp_HEADERS += ../../shared/include/utility.h
>>> +include_bsp_HEADERS += ../../shared/include/irq-generic.h
>>> +include_bsp_HEADERS += ../../shared/include/irq-info.h
>>> +include_bsp_HEADERS += ../../shared/include/stackalloc.h
>>> +include_bsp_HEADERS += ../../shared/include/uart-output-char.h
>>> +include_bsp_HEADERS += ../../shared/tod.h
>>> +include_bsp_HEADERS += ../shared/include/linker-symbols.h
>>> +include_bsp_HEADERS += ../shared/include/start.h
>>> +include_bsp_HEADERS += ../shared/lpc/include/lpc-timer.h
>>> +include_bsp_HEADERS += ../shared/lpc/include/lpc-dma.h
>>> +include_bsp_HEADERS += include/irq.h
>>> +include_bsp_HEADERS += include/mmu.h
>>> +include_bsp_HEADERS += include/raspberry_pi.h
>>> +
>>> +include_libcpu_HEADERS = ../../../libcpu/arm/shared/include/cache_.h \
>>> + ../../../libcpu/arm/shared/include/arm-cp15.h
>>> +
>>> +###############################################################################
>>> +# Data #
>>> +###############################################################################
>>> +
>>> +noinst_LIBRARIES = libbspstart.a
>>> +
>>> +libbspstart_a_SOURCES = ../shared/start/start.S
>>> +
>>> +project_lib_DATA = start.$(OBJEXT)
>>> +
>>> +project_lib_DATA += startup/linkcmds
>>> +project_lib_DATA += ../shared/startup/linkcmds.base
>>> +
>>> +EXTRA_DIST = startup/linkcmds
>>> +
>>> +###############################################################################
>>> +# LibBSP #
>>> +###############################################################################
>>> +
>>> +noinst_LIBRARIES += libbsp.a
>>> +
>>> +libbsp_a_SOURCES =
>>> +libbsp_a_CPPFLAGS =
>>> +libbsp_a_LIBADD =
>>> +
>>> +# Shared
>>> +libbsp_a_SOURCES += ../../shared/bootcard.c
>>> +libbsp_a_SOURCES += ../../shared/bspclean.c
>>> +libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
>>> +libbsp_a_SOURCES += ../../shared/bsplibc.c
>>> +libbsp_a_SOURCES += ../../shared/bsppost.c
>>> +libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
>>> +libbsp_a_SOURCES += ../../shared/bsppretaskinghook.c
>>> +libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
>>> +libbsp_a_SOURCES += ../../shared/sbrk.c
>>> +libbsp_a_SOURCES += ../../shared/src/stackalloc.c
>>> +libbsp_a_SOURCES += ../shared/abort/simple_abort.c
>>> +libbsp_a_SOURCES += ../shared/startup/bsp-start-memcpy.S
>>> +
>>> +# libbsp_a_SOURCES += ../../shared/src/uart-output-char.c
>>> +
>>> +
>>> +# Startup
>>> +libbsp_a_SOURCES += startup/bspreset.c
>>> +libbsp_a_SOURCES += startup/bspstart.c
>>> +
>>> +# IRQ
>>> +libbsp_a_SOURCES += ../../shared/src/irq-default-handler.c
>>> +libbsp_a_SOURCES += ../../shared/src/irq-generic.c
>>> +libbsp_a_SOURCES += ../../shared/src/irq-info.c
>>> +libbsp_a_SOURCES += ../../shared/src/irq-legacy.c
>>> +libbsp_a_SOURCES += ../../shared/src/irq-server.c
>>> +libbsp_a_SOURCES += ../../shared/src/irq-shell.c
>>> +libbsp_a_SOURCES += irq/irq.c
>>> +
>>> +# Console
>>> +libbsp_a_SOURCES += console/console.c
>>> +
>>> +# clock
>>> +libbsp_a_SOURCES += clock/clockdrv.c ../../../shared/clockdrv_shell.h
>>> +
>>> +# Timer
>>> +libbsp_a_SOURCES += misc/timer.c
>>> +
>>> +# RTC
>>> +
>>> +# SSP
>>> +
>>> +# I2C
>>> +
>>> +# Cache
>>> +libbsp_a_SOURCES += ../../../libcpu/shared/src/cache_manager.c
>>> +libbsp_a_SOURCES += ../../../libcpu/arm/shared/include/cache_.h
>>> +libbsp_a_CPPFLAGS += -I$(srcdir)/../../../libcpu/arm/shared/include
>>> +
>>> +# Start hooks
>>> +libbsp_a_SOURCES += startup/bspstarthooks.c
>>> +
>>> +###############################################################################
>>> +# Network #
>>> +###############################################################################
>>> +
>>> +#if HAS_NETWORKING
>>> +#
>>> +#noinst_PROGRAMS = network.rel
>>> +#
>>> +#network_rel_SOURCES = ../shared/lpc/network/lpc-ethernet.c
>>> +#network_rel_CPPFLAGS = $(AM_CPPFLAGS) -D__INSIDE_RTEMS_BSD_TCPIP_STACK__ -D__BSD_VISIBLE
>>> +#network_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
>>> +#
>>> +#
>>> +#libbsp_a_LIBADD += network.rel
>>> +#
>>> +#endif
>>> +
>>> +###############################################################################
>>> +# Special Rules #
>>> +###############################################################################
>>> +
>>> +DISTCLEANFILES = include/bspopts.h
>>> +
>>> +include $(srcdir)/preinstall.am
>>> +include $(top_srcdir)/../../../../automake/local.am
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/README b/c/src/lib/libbsp/arm/raspberry_pi/README
>>> new file mode 100755
>>> index 0000000..7c92d55
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/README
>>> @@ -0,0 +1,65 @@
>>> +BSP for the Raspberry Pi ARM board
>>> +This is a basic port that should work on either Model A or Model B.
>>> +
>>> +It currently supports the following devices:
>>> + o Console using the PL011 UART0
>>> + The console driver only works with polled mode right now,
>>> + the interrupt code is there, but it does not work yet.
>>> + The console driver is currently hardcoded at 115k 8N1
>>> + o Clock uses the internal ARM timer
>>> + The Raspberry Pi can be overclocked through the config.txt file, this
>>> + would affect the duration of the clock tick.
>>> + o Benchmark timer reads the lower 32 bit GPU timer register
>>> +
>>> +To run an RTEMS binary, it must be stripped and loaded on the SD card along with
>>> +the following files:
>>> + bootcode.bin
>>> + config.txt
>>> + loader.bin
>>> + start.elf
>>> + kernel.img ( the RTEMS binary, you can change the name in config.txt )
>>> +
>>> +These files can be obtained from a Linux installation image, or from here:
>>> +https://github.com/raspberrypi/firmware
>>> +
>>> +I used an old 256MB SD card to boot RTEMS.
>>> +Much more information about the SD card file and bootloader can be found here:
>>> +http://elinux.org/RPi_Hub
>>> +http://www.raspberrypi.org
>>> +
>>> +The linker script is set up for 128MB, so it can be used with a GPU/ARM split
>>> +of 128/128.
>>> +The bootloader that is used on the SD card determines the split of RAM between the
>>> +ARM and the GPU. It might make sense to adjust the GPU/ARM memory split to give
>>> +more memory to RTEMS, especially on a 512MB board.
>>> +
>>> +To do:
>>> + It would be nice to get support in the BSP for the following:
>>> + o SD card
>>> + o USB and USB 10/100 network chip on Model B
>>> + o SPI
>>> + o GPIO
>>> + o ARM MMU
>>> + o Graphics console
>>> + o Sound
>>> +
>>> +Credits and links:
>>> +
>>> + There is a wealth of code and information to reference on the raspberrypi.org bare metal forums:
>>> + http://www.raspberrypi.org/phpBB3/viewforum.php?f=72
>>> +
>>> + I found information about how to program the timers, interrupts, and UART 0
>>> + from the examples provided by:
>>> +
>>> + David Welch:
>>> + https://github.com/dwelch67/raspberrypi
>>> + The readme file at his github repository has valuable information about connecting a UART cable, JTAG etc.
>>> +
>>> + Steve Bate:
>>> + http://www.stevebate.net/chibios-rpi/GettingStarted.html
>>> + Steve provided a port of the Chibios RTOS to the raspberry Pi
>>> +
>>> + James Walmsley:
>>> + http://www.raspberrypi.org/phpBB3/viewtopic.php?f=72&t=22423
>>> + James ported FreeRTOS to the raspberry Pi.
>>> +
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/bsp_specs b/c/src/lib/libbsp/arm/raspberry_pi/bsp_specs
>>> new file mode 100755
>>> index 0000000..082653a
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/bsp_specs
>>> @@ -0,0 +1,13 @@
>>> +%rename endfile old_endfile
>>> +%rename startfile old_startfile
>>> +%rename link old_link
>>> +
>>> +*startfile:
>>> +%{!qrtems: %(old_startfile)} \
>>> +%{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s -e _start}}
>>> +
>>> +*link:
>>> +%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N}
>>> +
>>> +*endfile:
>>> +%{!qrtems: *(old_endfiles)} %{qrtems: crtend.o%s crtn.o%s }
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/clock/clockdrv.c b/c/src/lib/libbsp/arm/raspberry_pi/clock/clockdrv.c
>>> new file mode 100755
>>> index 0000000..63017fb
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/clock/clockdrv.c
>>> @@ -0,0 +1,97 @@
>>> +/*
>>> + * BCM2835 Clock driver
>>> + *
>>> + * Copyright (c) 2002 by Jay Monkman <jtm at smoothsmoothie.com>
>>> + *
>>> + * 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.
>> Delete the blank line here.
>>
>>> + *
>>> + *
>>> + * $Id: clockdrv.c,v 1.13 2010/04/30 14:48:52 sh Exp $
>> Deleyte the $Id$ and extra blank lines.
>>
>>> +*/
>>> +
>>> +#include <rtems.h>
>>> +#include <bsp.h>
>>> +#include <bsp/irq.h>
>>> +#include <bsp/irq-generic.h>
>>> +#include <bsp/raspberry_pi.h>
>>> +
>>> +#define CLOCK_VECTOR 0
>>> +
>>> +void Clock_isr(rtems_irq_hdl_param arg);
>>> +static void clock_isr_on(const rtems_irq_connect_data *unused);
>>> +static void clock_isr_off(const rtems_irq_connect_data *unused);
>>> +static int clock_isr_is_on(const rtems_irq_connect_data *irq);
>>> +uint32_t clock_driver_get_nanoseconds_since_last_tick(void);
>>> +
>>> +rtems_irq_connect_data clock_isr_data =
>>> +{
>>> + BCM2835_IRQ_ID_TIMER_0 ,
>>> + (rtems_irq_hdl)Clock_isr,
>>> + NULL,
>>> + clock_isr_on,
>>> + clock_isr_off,
>>> + clock_isr_is_on
>>> +};
>>> +
>>> +#define Clock_driver_support_at_tick() \
>>> + do { \
>>> + BCM2835_REG(BCM2835_TIMER_CLI) = 0; \
>>> + } while(0)
>>> +
>>> +#define Clock_driver_support_install_isr( _new, _old ) \
>>> + do { \
>>> + (_old) = NULL; /* avoid warning */; \
>>> + BSP_install_rtems_irq_handler(&clock_isr_data); \
>>> + } while(0)
>>> +
>>> +/*
>>> + * Set up the clock hardware
>>> + */
>>> +
>>> +#define Clock_driver_support_initialize_hardware() \
>>> + do { \
>>> + BCM2835_REG(BCM2835_TIMER_CTL) = 0x003E0000; \
>>> + BCM2835_REG(BCM2835_TIMER_LOD) = 10000 - 1; \
>>> + BCM2835_REG(BCM2835_TIMER_RLD) = 10000 - 1; \
>>> + BCM2835_REG(BCM2835_TIMER_DIV) = BCM2835_TIMER_PRESCALE; \
>>> + BCM2835_REG(BCM2835_TIMER_CLI) = 0; \
>>> + BCM2835_REG(BCM2835_TIMER_CTL) = 0x003E00A2; \
>>> + } while (0)
>>> +
>>> +#define Clock_driver_support_shutdown_hardware() \
>>> + do { \
>>> + BSP_remove_rtems_irq_handler(&clock_isr_data); \
>>> + } while (0)
>>> +
>>> +/*
>>> + * Return the nanoseconds since last tick
>>> + */
>>> +uint32_t clock_driver_get_nanoseconds_since_last_tick(void)
>>> +{
>>> + return 0;
>>> +}
>>> +
>>> +#define Clock_driver_nanoseconds_since_last_tick \
>>> + clock_driver_get_nanoseconds_since_last_tick
>>> +
>>> +static void clock_isr_on(const rtems_irq_connect_data *unused)
>>> +{
>>> + bsp_interrupt_vector_enable(BCM2835_IRQ_ID_TIMER_0);
>>> + return;
>>> +}
>>> +
>>> +static void clock_isr_off(const rtems_irq_connect_data *unused)
>>> +{
>>> + bsp_interrupt_vector_disable(BCM2835_IRQ_ID_TIMER_0);
>>> + return;
>>> +}
>>> +
>>> +static int clock_isr_is_on(const rtems_irq_connect_data *irq)
>>> +{
>>> + return 1;
>>> +}
>>> +
>>> +#include "../../../shared/clockdrv_shell.h"
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/configure.ac b/c/src/lib/libbsp/arm/raspberry_pi/configure.ac
>>> new file mode 100755
>>> index 0000000..cfb1918
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/configure.ac
>>> @@ -0,0 +1,31 @@
>>> +##
>>> +#
>>> +# @file
>>> +#
>>> +# @brief Configure script of LibBSP for the Raspberry Pi boards.
>>> +#
>>> +
>>> +AC_PREREQ([2.68])
>>> +AC_INIT([rtems-c-src-lib-libbsp-arm-raspberry_pi],[_RTEMS_VERSION],[rtems-bugs at rtems.com])
>> Change the rtems-bugs at rtems.com to http://www.rtems.org/bugzilla
>>
>>> +AC_CONFIG_SRCDIR([bsp_specs])
>>> +RTEMS_TOP(../../../../../..)
>>> +
>>> +RTEMS_CANONICAL_TARGET_CPU
>>> +AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.11.1])
>> Bump this to 1.12.2 I think we are on now.
>>
>>> +RTEMS_BSP_CONFIGURE
>>> +
>>> +RTEMS_PROG_CC_FOR_TARGET
>>> +RTEMS_CANONICALIZE_TOOLS
>>> +RTEMS_PROG_CCAS
>>> +
>>> +RTEMS_CHECK_NETWORKING
>>> +AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
>>> +
>>> +RTEMS_BSPOPTS_SET([BSP_START_RESET_VECTOR],[*],[])
>>> +RTEMS_BSPOPTS_HELP([BSP_START_RESET_VECTOR],[reset vector address for BSP start])
>>> +
>>> +RTEMS_BSP_CLEANUP_OPTIONS(0, 0)
>>> +RTEMS_BSP_LINKCMDS
>>> +
>>> +AC_CONFIG_FILES([Makefile])
>>> +AC_OUTPUT
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/console/console.c b/c/src/lib/libbsp/arm/raspberry_pi/console/console.c
>>> new file mode 100755
>>> index 0000000..5156737
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/console/console.c
>>> @@ -0,0 +1,457 @@
>>> +/*
>>> + * Console driver for the Raspberry Pi PL011 UART0
>>> + *
>>> + * Based on a driver by Jay Monkman <jtm at lopingdog.com>
>>> + * Copyright (c) 2005 by Loping Dog Embedded Systems
>>> + *
>>> + * 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
>>> + *
>>> + * $Id: uart.c,v 1.9 2010/04/30 14:40:16 sh Exp $
>> Remove $Id$
>>
>>> + */
>>> +#include <bsp.h>
>>> +#include <rtems/libio.h>
>>> +#include <libchip/sersupp.h>
>>> +#include <rtems/error.h>
>>> +#include <rtems/bspIo.h>
>>> +#include <termios.h>
>>> +#include <rtems/irq.h>
>>> +#include <bsp/irq.h>
>>> +#include <bsp/irq-generic.h>
>>> +#include <bsp/raspberry_pi.h>
>>> +#include <bsp/uart-output-char.h>
>>> +
>>> +/* Define this to use interrupt driver UART driver */
>>> +/* Note: The interrupt driver does not currently work */
>>> +/* #define USE_INTERRUPTS 1 */
>>> +#undef USE_INTERRUPTS
>>> +
>>> +#define poll_write(c) uart0_poll_write_char(0, c)
>>> +#define poll_read() uart0_poll_read_char(0)
>>> +
>>> +int _BSP_poll_char(void);
>>> +void _BSP_output_char(char c);
>>> +int uart0_poll_read_char(int minor);
>>> +void uart0_poll_write_char(int minor, char c);
>>> +
>>> +static int uart0_first_open(int, int, void *);
>>> +static int uart0_last_close(int, int, void *);
>>> +static int uart0_poll_read(int);
>>> +static int uart0_set_attrs(int, const struct termios *);
>>> +static void uart0_init(int minor);
>>> +static void uart0_set_baud(int, int);
>>> +static ssize_t uart0_poll_write(int, const char *, size_t);
>>> +
>>> +#if defined(USE_INTERRUPTS)
>>> +static void uart0_isr(rtems_irq_hdl_param);
>>> +static void uart0_isr_on(const rtems_irq_connect_data *irq);
>>> +static void uart0_isr_off(const rtems_irq_connect_data *irq);
>>> +static int uart0_isr_is_on(const rtems_irq_connect_data *irq);
>>> +static ssize_t uart0_intr_write(int, const char *, size_t);
>>> +#endif
>>> +
>>> +/* TERMIOS callbacks */
>>> +#if defined(USE_INTERRUPTS)
>>> +rtems_termios_callbacks uart0_cbacks =
>>> +{
>>> + .firstOpen = uart0_first_open,
>>> + .lastClose = uart0_last_close,
>>> + .pollRead = NULL,
>>> + .write = uart0_intr_write,
>>> + .setAttributes = uart0_set_attrs,
>>> + .stopRemoteTx = NULL,
>>> + .startRemoteTx = NULL,
>>> + .outputUsesInterrupts = 1,
>>> +};
>>> +#else
>>> +rtems_termios_callbacks uart0_cbacks =
>>> +{
>>> + .firstOpen = uart0_first_open,
>>> + .lastClose = uart0_last_close,
>>> + .pollRead = uart0_poll_read,
>>> + .write = uart0_poll_write,
>>> + .setAttributes = uart0_set_attrs,
>>> + .stopRemoteTx = NULL,
>>> + .startRemoteTx = NULL,
>>> + .outputUsesInterrupts = 0,
>>> +};
>>> +#endif
>>> +
>>> +#if defined(USE_INTERRUPTS)
>>> +static rtems_irq_connect_data uart0_isr_data;
>>> +#endif
>>> +
>>> +typedef struct
>>> +{
>>> + int minor;
>>> + volatile const char * buf;
>>> + volatile int len;
>>> + volatile int idx;
>>> + void * tty;
>>> +
>>> +} uart0_data_t;
>>> +
>>> +static uart0_data_t uart0_data;
>>> +
>>> +static void uart0_delay(uint32_t n)
>>> +{
>>> + volatile uint32_t i = 0;
>>> + for(i = 0; i < n; i++);
>>> +}
>>> +
>>> +rtems_device_driver console_initialize(
>>> + rtems_device_major_number major,
>>> + rtems_device_minor_number minor,
>>> + void *arg
>>> +)
>>> +{
>>> + rtems_status_code status;
>>> +
>>> + uart0_init(0);
>>> +
>>> + rtems_termios_initialize();
>>> +
>>> + /* /dev/console and /dev/tty0 are the same */
>>> + status = rtems_io_register_name("/dev/console", major, 0);
>>> + if (status != RTEMS_SUCCESSFUL)
>>> + {
>>> + rtems_panic("%s:%d Error registering /dev/console :: %d\n",
>>> + __FUNCTION__, __LINE__, status);
>>> + }
>>> +
>>> + status = rtems_io_register_name("/dev/tty0", major, 0);
>>> + if (status != RTEMS_SUCCESSFUL)
>>> + {
>>> + rtems_panic("%s:%d Error registering /dev/tty0 :: %d\n",
>>> + __FUNCTION__, __LINE__, status);
>>> + }
>>> + return RTEMS_SUCCESSFUL;
>>> +}
>>> +
>>> +rtems_device_driver console_open(
>>> + rtems_device_major_number major,
>>> + rtems_device_minor_number minor,
>>> + void * arg
>>> +)
>>> +{
>>> + rtems_status_code rc;
>>> +
>>> + if (minor > 0)
>>> + {
>>> + return RTEMS_INVALID_NUMBER;
>>> + }
>>> +
>>> + rc = rtems_termios_open(major, minor, arg, &uart0_cbacks);
>>> +
>>> + return rc;
>>> +}
>>> +
>>> +rtems_device_driver console_close(
>>> + rtems_device_major_number major,
>>> + rtems_device_minor_number minor,
>>> + void * arg
>>> +)
>>> +{
>>> + return rtems_termios_close(arg);
>>> +}
>>> +
>>> +rtems_device_driver console_read(
>>> + rtems_device_major_number major,
>>> + rtems_device_minor_number minor,
>>> + void * arg
>>> +)
>>> +{
>>> + return rtems_termios_read(arg);
>>> +}
>>> +
>>> +rtems_device_driver console_write(
>>> + rtems_device_major_number major,
>>> + rtems_device_minor_number minor,
>>> + void * arg
>>> +)
>>> +{
>>> + return rtems_termios_write(arg);
>>> +}
>>> +
>>> +rtems_device_driver console_control(
>>> + rtems_device_major_number major,
>>> + rtems_device_minor_number minor,
>>> + void * arg
>>> +)
>>> +{
>>> + return rtems_termios_ioctl(arg);
>>> +}
>>> +
>>> +static void uart0_init(int minor)
>>> +{
>>> + unsigned int gpio_reg;
>>> +
>>> + uart0_data.minor = minor;
>>> + uart0_data.buf = NULL;
>>> + uart0_data.len = 0;
>>> + uart0_data.idx = 0;
>>> +
>>> +#if defined(USE_INTERRUPTS)
>>> + uart0_isr_data.name = BCM2835_IRQ_ID_UART;
>>> + uart0_isr_data.hdl = uart0_isr;
>>> + uart0_isr_data.handle = &uart0_data;
>>> + uart0_isr_data.on = uart0_isr_on;
>>> + uart0_isr_data.off = uart0_isr_off;
>>> + uart0_isr_data.isOn = uart0_isr_is_on;
>>> +#endif
>>> +
>>> + /*
>>> + ** Program GPIO pins for UART 0
>>> + */
>>> + gpio_reg = BCM2835_REG(BCM2835_GPIO_GPFSEL1);
>>> + gpio_reg &= ~(7<<12); /* gpio14 */
>>> + gpio_reg |= (4<<12); /* alt0 */
>>> + gpio_reg &= ~(7<<15); /* gpio15 */
>>> + gpio_reg |= (4<<15); /* alt0 */
>>> + BCM2835_REG(BCM2835_GPIO_GPFSEL1) = gpio_reg;
>>> +
>>> + BCM2835_REG(BCM2835_GPIO_GPPUD) = 0;
>>> + uart0_delay(150);
>>> + BCM2835_REG(BCM2835_GPIO_GPPUDCLK0) = (1<<14)|(1<<15);
>>> + uart0_delay(150);
>>> + BCM2835_REG(BCM2835_GPIO_GPPUDCLK0) = 0;
>>> +
>>> + /*
>>> + ** Init the PL011 UART
>>> + */
>>> + BCM2835_REG(BCM2835_UART0_CR) = 0;
>>> + BCM2835_REG(BCM2835_UART0_ICR) = 0x7FF;
>>> + BCM2835_REG(BCM2835_UART0_IMSC) = 0;
>>> + BCM2835_REG(BCM2835_UART0_IBRD) = 1;
>>> + BCM2835_REG(BCM2835_UART0_FBRD) = 40;
>>> + BCM2835_REG(BCM2835_UART0_LCRH) = 0x70;
>>> + BCM2835_REG(BCM2835_UART0_RSRECR) = 0;
>>> +
>>> + BCM2835_REG(BCM2835_UART0_CR) = 0x301;
>>> +
>>> + BCM2835_REG(BCM2835_UART0_IMSC) = BCM2835_UART0_IMSC_RX;
>>> +
>>> + uart0_set_baud(0, 115000);
>>> +}
>>> +
>>> +
>>> +static int uart0_first_open(int major, int minor, void *arg)
>>> +{
>>> + rtems_libio_open_close_args_t *args = arg;
>>> +
>>> + uart0_data.tty = args->iop->data1;
>>> +
>>> +#if defined(USE_INTERRUPTS)
>>> + BSP_install_rtems_irq_handler(&uart0_isr_data);
>>> + BCM2835_REG(BCM2835_UART0_IMSC) = BCM2835_UART0_IMSC_RX;
>>> +#endif
>>> + return 0;
>>> +}
>>> +
>>> +static int uart0_last_close(int major, int minor, void *arg)
>>> +{
>>> +#if defined(USE_INTERRUPTS)
>>> + BCM2835_REG(BCM2835_UART0_IMSC) = 0;
>>> + BSP_remove_rtems_irq_handler(&uart0_isr_data);
>>> +#endif
>>> + return 0;
>>> +}
>>> +
>>> +static int uart0_poll_read(int minor)
>>> +{
>>> + if (minor == 0)
>>> + {
>>> + if(((BCM2835_REG(BCM2835_UART0_FR)) & BCM2835_UART0_FR_RXFE) == 0)
>>> + {
>>> + return((BCM2835_REG(BCM2835_UART0_DR)) & 0xFF );
>>> + }
>>> + else
>>> + {
>>> + return -1;
>>> + }
>>> + }
>>> + else
>>> + {
>>> + printk("Unknown console minor number: %d\n", minor);
>>> + return -1;
>>> + }
>>> +}
>>> +
>>> +static ssize_t uart0_poll_write(int minor, const char *buf, size_t len)
>>> +{
>>> + int i;
>>> +
>>> + if (minor == 0)
>>> + {
>>> + for (i = 0; i < len; i++)
>>> + {
>>> + while (1)
>>> + {
>>> + if ((BCM2835_REG(BCM2835_UART0_FR) & BCM2835_UART0_FR_TXFF) == 0) break;
>>> + }
>>> + BCM2835_REG(BCM2835_UART0_DR) = buf[i];
>>> + }
>>> + }
>>> + else
>>> + {
>>> + printk("Unknown console minor number: %d\n", minor);
>>> + return -1;
>>> + }
>>> + return 1;
>>> +}
>>> +
>>> +/* This is for setting baud rate, bits, etc. */
>>> +static int uart0_set_attrs(int minor, const struct termios *t)
>>> +{
>>> + int baud;
>>> +
>>> + baud = rtems_termios_baud_to_number(t->c_cflag & CBAUD);
>>> + uart0_set_baud(minor, baud);
>>> +
>>> + return 0;
>>> +}
>>> +
>>> +#if defined(USE_INTERRUPTS)
>>> +static ssize_t uart0_intr_write(int minor, const char *buf, size_t len)
>>> +{
>>> + uart0_data.buf = buf;
>>> + uart0_data.len = len;
>>> + uart0_data.idx = 0;
>>> +
>>> + /* Enable transmit interrupt */
>>> + BCM2835_REG(BCM2835_UART0_IMSC) = BCM2835_UART0_IMSC_TX | BCM2835_UART0_IMSC_RX;
>>> +
>>> + return 1;
>>> +}
>>> +
>>> +
>>> +static void uart0_isr_on(const rtems_irq_connect_data *irq)
>>> +{
>>> + bsp_interrupt_vector_enable(BCM2835_IRQ_ID_UART);
>>> +}
>>> +
>>> +static void uart0_isr_off(const rtems_irq_connect_data *irq)
>>> +{
>>> + bsp_interrupt_vector_disable(BCM2835_IRQ_ID_UART);
>>> +}
>>> +
>>> +static int uart0_isr_is_on(const rtems_irq_connect_data *irq)
>>> +{
>>> + /* TODO: Need a function in irq.c to return interrupt state */
>>> + return(1);
>>> +}
>>> +
>>> +/*
>>> +** Handle both the receive and transmit interrupts
>>> +*/
>>> +static void uart0_isr(rtems_irq_hdl_param param)
>>> +{
>>> + uart0_data_t *uart_data = param;
>>> + char buf[32];
>>> + int i=0;
>>> + int len;
>>> +
>>> + /*
>>> + ** Process receive interrupt
>>> + */
>>> + if (BCM2835_REG(BCM2835_UART0_MIS) & BCM2835_UART0_MIS_RX)
>>> + {
>>> + while(((BCM2835_REG(BCM2835_UART0_FR)) & BCM2835_UART0_FR_RXFE) == 0)
>>> + {
>>> + buf[i] = BCM2835_REG(BCM2835_UART0_DR) & 0xFF;
>>> + i++;
>>> + }
>>> + /* Clear RX Interrupt */
>>> + BCM2835_REG(BCM2835_UART0_ICR) = BCM2835_UART0_ICR_RX;
>>> +
>>> + rtems_termios_enqueue_raw_characters(uart_data->tty, buf, i);
>>> +
>>> + }
>>> +
>>> + /*
>>> + ** Process transmit interrupt
>>> + while ( (((uart_data->regs->aux_mu_lsr_reg) & 0x20) == 0x01) &&
>>> + */
>>> +
>>> + if (BCM2835_REG(BCM2835_UART0_MIS) & BCM2835_UART0_MIS_TX)
>>> + {
>>> + if (uart_data->idx < uart_data->len)
>>> + {
>>> + while ((BCM2835_REG(BCM2835_UART0_FR) & BCM2835_UART0_FR_TXFF) &&
>>> + (uart_data->idx < uart_data->len))
>>> + {
>>> + BCM2835_REG(BCM2835_UART0_DR) = uart_data->buf[uart_data->idx];
>>> + uart_data->idx++;
>>> + }
>>> +
>>> + /* Clear TX Interrupt */
>>> + BCM2835_REG(BCM2835_UART0_ICR) = BCM2835_UART0_ICR_TX;
>>> +
>>> + }
>>> + }
>>> + else
>>> + {
>>> + len = uart_data->len;
>>> + uart_data->len = 0;
>>> +
>>> + /* Clear TX Interrupt */
>>> + BCM2835_REG(BCM2835_UART0_ICR) = BCM2835_UART0_ICR_TX;
>>> +
>>> + /* Disable TX Interrupt, leaving RX enabled */
>>> + BCM2835_REG(BCM2835_UART0_IMSC) = BCM2835_UART0_IMSC_RX;
>>> + rtems_termios_dequeue_characters(uart_data->tty, len);
>>> +
>>> + }
>>> +
>>> +}
>>> +
>>> +#endif
>>> +
>>> +static void uart0_set_baud(int minor, int baud)
>>> +{
>>> + /*
>>> + ** Nothing for now
>>> + ** just keep it at 115k
>>> + */
>>> + return;
>>> +}
>>> +
>>> +/*
>>> + * Polled, non-blocking read from UART
>>> + */
>>> +int uart0_poll_read_char(int minor)
>>> +{
>>> + return uart0_poll_read(minor);
>>> +}
>>> +
>>> +/*
>>> + * Polled, blocking write from UART
>>> + */
>>> +void uart0_poll_write_char(int minor, char c)
>>> +{
>>> + uart0_poll_write(minor, &c, 1);
>>> +}
>>> +
>>> +/*
>>> + * Functions for printk() and friends.
>>> + */
>>> +void _BSP_output_char(char c)
>>> +{
>>> + poll_write(c);
>>> + if (c == '\n')
>>> + {
>>> + poll_write('\r');
>>> + }
>>> +}
>>> +
>>> +BSP_output_char_function_type BSP_output_char = _BSP_output_char;
>>> +
>>> +int _BSP_poll_char(void)
>>> +{
>>> + return poll_read();
>>> +}
>>> +
>>> +BSP_polling_getchar_function_type BSP_poll_char = _BSP_poll_char;
>>> +
>>> +
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/include/bsp.h b/c/src/lib/libbsp/arm/raspberry_pi/include/bsp.h
>>> new file mode 100755
>>> index 0000000..c83cfe9
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/include/bsp.h
>>> @@ -0,0 +1,44 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Global BSP definitions.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#ifndef LIBBSP_ARM_RASPBERRY_PI_BSP_H
>>> +#define LIBBSP_ARM_RASPBERRY_PI_BSP_H
>>> +
>>> +#include <bspopts.h>
>>> +
>>> +#include <rtems.h>
>>> +#include <rtems/console.h>
>>> +#include <rtems/clockdrv.h>
>>> +
>>> +#include <bsp/raspberry_pi.h>
>>> +
>>> +#ifdef __cplusplus
>>> +extern "C" {
>>> +#endif /* __cplusplus */
>>> +
>>> +#define BSP_FEATURE_IRQ_EXTENSION
>>> +
>>> +
>>> +#ifdef __cplusplus
>>> +}
>>> +#endif /* __cplusplus */
>>> +
>>> +#endif /* LIBBSP_ARM_RASPBERRY_PI_BSP_H */
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/include/irq.h b/c/src/lib/libbsp/arm/raspberry_pi/include/irq.h
>>> new file mode 100755
>>> index 0000000..e7ad1e4
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/include/irq.h
>>> @@ -0,0 +1,72 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup bsp_interrupt
>>> + *
>>> + * @brief Interrupt definitions.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#ifndef LIBBSP_ARM_RASBPERRY_PI_IRQ_H
>>> +#define LIBBSP_ARM_RASPBERRY_PI_IRQ_H
>>> +
>>> +#ifndef ASM
>>> +
>>> +#include <rtems.h>
>>> +#include <rtems/irq.h>
>>> +#include <rtems/irq-extension.h>
>>> +
>>> +/**
>>> + * @addtogroup bsp_interrupt
>>> + *
>>> + * @{
>>> + */
>>> +#define BCM2835_INTC_TOTAL_IRQ 64 + 8
>>> +
>>> +
>>> +#define BCM2835_IRQ_ID_AUX 29
>>> +#define BCM2835_IRQ_ID_SPI_SLAVE 43
>>> +#define BCM2835_IRQ_ID_PWA0 45
>>> +#define BCM2835_IRQ_ID_PWA1 46
>>> +#define BCM2835_IRQ_ID_SMI 48
>>> +#define BCM2835_IRQ_ID_GPIO_0 49
>>> +#define BCM2835_IRQ_ID_GPIO_1 50
>>> +#define BCM2835_IRQ_ID_GPIO_2 51
>>> +#define BCM2835_IRQ_ID_GPIO_3 52
>>> +#define BCM2835_IRQ_ID_I2C 53
>>> +#define BCM2835_IRQ_ID_SPI 54
>>> +#define BCM2835_IRQ_ID_PCM 55
>>> +#define BCM2835_IRQ_ID_UART 57
>>> +
>>> +
>>> +#define BCM2835_IRQ_ID_TIMER_0 64
>>> +#define BCM2835_IRQ_ID_MAILBOX_0 65
>>> +#define BCM2835_IRQ_ID_DOORBELL_0 66
>>> +#define BCM2835_IRQ_ID_DOORBELL_1 67
>>> +#define BCM2835_IRQ_ID_GPU0_HALTED 68
>>> +
>>> +#define BSP_INTERRUPT_VECTOR_MIN (0)
>>> +#define BSP_INTERRUPT_VECTOR_MAX (BCM2835_INTC_TOTAL_IRQ - 1)
>>> +
>>> +#define BSP_IRQ_COUNT (BCM2835_INTC_TOTAL_IRQ)
>>> +
>>> +
>>> +void raspberry_pi_set_exception_handler(Arm_symbolic_exception_name exception,
>>> + void (*handler)(void));
>>> +
>>> +/** @} */
>>> +
>>> +#endif /* ASM */
>>> +#endif /* LIBBSP_ARM_RASPBERRY_PI_IRQ_H */
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/include/mmu.h b/c/src/lib/libbsp/arm/raspberry_pi/include/mmu.h
>>> new file mode 100755
>>> index 0000000..8b50bd2
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/include/mmu.h
>>> @@ -0,0 +1,64 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup lpc32xx_mmu
>>> + *
>>> + * @brief MMU API.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#ifndef LIBBSP_ARM_RASPBERRY_PI_MMU_H
>>> +#define LIBBSP_ARM_RASPBERRY_PI_MMU_H
>>> +
>>> +#include <libcpu/arm-cp15.h>
>>> +
>>> +#ifdef __cplusplus
>>> +extern "C" {
>>> +#endif /* __cplusplus */
>>> +
>>> +/**
>>> + * @defgroup raspberry_pi_mmu MMU Support
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief MMU support.
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +#define RASPBERRY_PI_MMU_CLIENT_DOMAIN 15U
>>> +
>>> +#define RASPBERRY_PI_MMU_READ_ONLY \
>>> + ((RASPBERRY_PI_MMU_CLIENT_DOMAIN << ARM_MMU_SECT_DOMAIN_SHIFT) \
>>> + | ARM_MMU_SECT_DEFAULT)
>>> +
>>> +#define RASPBERRY_PI_MMU_READ_ONLY_CACHED \
>>> + (RASPBERRY_PI_MMU_READ_ONLY | ARM_MMU_SECT_C | ARM_MMU_SECT_B)
>>> +
>>> +#define RASPBERRY_PI_MMU_READ_WRITE \
>>> + ((RASPBERRY_PI_MMU_CLIENT_DOMAIN << ARM_MMU_SECT_DOMAIN_SHIFT) \
>>> + | ARM_MMU_SECT_AP_0 \
>>> + | ARM_MMU_SECT_DEFAULT)
>>> +
>>> +#define RASPBERRY_PI_MMU_READ_WRITE_CACHED \
>>> + (RASPBERRY_PI_MMU_READ_WRITE | ARM_MMU_SECT_C | ARM_MMU_SECT_B)
>>> +
>>> +/** @} */
>>> +
>>> +#ifdef __cplusplus
>>> +}
>>> +#endif /* __cplusplus */
>>> +
>>> +#endif /* LIBBSP_ARM_RASPBERRY_PI_MMU_H */
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/include/raspberry_pi.h b/c/src/lib/libbsp/arm/raspberry_pi/include/raspberry_pi.h
>>> new file mode 100755
>>> index 0000000..ed914e4
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/include/raspberry_pi.h
>>> @@ -0,0 +1,186 @@
>>> +
>>> +/*
>>> + * raspberry_pi.h
>>> + *
>>> + * Alan Cudmore
>>> + * alan.cudmore at gmail.com
>> Please add copyright and year here. Can omit email address, we will
>> put it in the git commit message (provide the authorship info in your
>> next submission.)
>>
>>> + *
>>> + * The license and distribution terms for this file may be
>>> + * found in the file LICENSE in this distribution or at
>>> + * http:
>>> + */
>> Fix this missing license info.
>>
>>> +
>>> +#ifndef LIBBSP_ARM_RASPBERRY_PI_RASPBERRY_PI_H
>>> +#define LIBBSP_ARM_RASPBERRY_PI_RASPBERRY_PI_H
>>> +
>>> +#include <stdint.h>
>>> +#include <bsp/utility.h>
>>> +
>>> +/**
>>> + * @defgroup raspberry_pi_reg Register Definitions
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Register definitions.
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +#define BCM2835_REG(x) (*(volatile uint32_t *)(x))
>>> +#define BCM2835_BIT(n) (1 << (n))
>>> +#define BCM2835_CLOCK_FREQ 250000000
>>> +
>>> +/**
>>> + * @name Internal ARM Timer Registers
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +#define BCM2835_TIMER_BASE (0x2000B400)
>>> +
>>> +#define BCM2835_TIMER_LOD (BCM2835_TIMER_BASE+0x00)
>>> +#define BCM2835_TIMER_VAL (BCM2835_TIMER_BASE+0x04)
>>> +#define BCM2835_TIMER_CTL (BCM2835_TIMER_BASE+0x08)
>>> +#define BCM2835_TIMER_CLI (BCM2835_TIMER_BASE+0x0C)
>>> +#define BCM2835_TIMER_RIS (BCM2835_TIMER_BASE+0x10)
>>> +#define BCM2835_TIMER_MIS (BCM2835_TIMER_BASE+0x14)
>>> +#define BCM2835_TIMER_RLD (BCM2835_TIMER_BASE+0x18)
>>> +#define BCM2835_TIMER_DIV (BCM2835_TIMER_BASE+0x1C)
>>> +#define BCM2835_TIMER_CNT (BCM2835_TIMER_BASE+0x20)
>>> +
>>> +
>>> +#define BCM2835_TIMER_PRESCALE 0xF9
>>> +
>>> +/** @} */
>>> +
>>> +
>>> +/**
>>> + * @name GPIO Registers
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +#define BCM2835_GPIO_REGS_BASE (0x20200000)
>>> +
>>> +#define BCM2835_GPIO_GPFSEL1 (BCM2835_GPIO_REGS_BASE+0x04)
>>> +#define BCM2835_GPIO_GPSET0 (BCM2835_GPIO_REGS_BASE+0x1C)
>>> +#define BCM2835_GPIO_GPCLR0 (BCM2835_GPIO_REGS_BASE+0x28)
>>> +#define BCM2835_GPIO_GPPUD (BCM2835_GPIO_REGS_BASE+0x94)
>>> +#define BCM2835_GPIO_GPPUDCLK0 (BCM2835_GPIO_REGS_BASE+0x98)
>>> +
>>> +/** @} */
>>> +
>>> +/**
>>> + * @name AUX Registers
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +#define BCM2835_AUX_BASE (0x20215000)
>>> +
>>> +#define AUX_ENABLES (BCM2835_AUX_BASE+0x04)
>>> +#define AUX_MU_IO_REG (BCM2835_AUX_BASE+0x40)
>>> +#define AUX_MU_IER_REG (BCM2835_AUX_BASE+0x44)
>>> +#define AUX_MU_IIR_REG (BCM2835_AUX_BASE+0x48)
>>> +#define AUX_MU_LCR_REG (BCM2835_AUX_BASE+0x4C)
>>> +#define AUX_MU_MCR_REG (BCM2835_AUX_BASE+0x50)
>>> +#define AUX_MU_LSR_REG (BCM2835_AUX_BASE+0x54)
>>> +#define AUX_MU_MSR_REG (BCM2835_AUX_BASE+0x58)
>>> +#define AUX_MU_SCRATCH (BCM2835_AUX_BASE+0x5C)
>>> +#define AUX_MU_CNTL_REG (BCM2835_AUX_BASE+0x60)
>>> +#define AUX_MU_STAT_REG (BCM2835_AUX_BASE+0x64)
>>> +#define AUX_MU_BAUD_REG (BCM2835_AUX_BASE+0x68)
>>> +
>>> +/** @} */
>>> +
>>> +
>>> +/**
>>> + * @name UART 0 (PL011) Registers
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +
>>> +#define BCM2835_UART0_BASE (0x20201000)
>>> +
>>> +#define BCM2835_UART0_DR (BCM2835_UART0_BASE+0x00)
>>> +#define BCM2835_UART0_RSRECR (BCM2835_UART0_BASE+0x04)
>>> +#define BCM2835_UART0_FR (BCM2835_UART0_BASE+0x18)
>>> +#define BCM2835_UART0_ILPR (BCM2835_UART0_BASE+0x20)
>>> +#define BCM2835_UART0_IBRD (BCM2835_UART0_BASE+0x24)
>>> +#define BCM2835_UART0_FBRD (BCM2835_UART0_BASE+0x28)
>>> +#define BCM2835_UART0_LCRH (BCM2835_UART0_BASE+0x2C)
>>> +#define BCM2835_UART0_CR (BCM2835_UART0_BASE+0x30)
>>> +#define BCM2835_UART0_IFLS (BCM2835_UART0_BASE+0x34)
>>> +#define BCM2835_UART0_IMSC (BCM2835_UART0_BASE+0x38)
>>> +#define BCM2835_UART0_RIS (BCM2835_UART0_BASE+0x3C)
>>> +#define BCM2835_UART0_MIS (BCM2835_UART0_BASE+0x40)
>>> +#define BCM2835_UART0_ICR (BCM2835_UART0_BASE+0x44)
>>> +#define BCM2835_UART0_DMACR (BCM2835_UART0_BASE+0x48)
>>> +#define BCM2835_UART0_ITCR (BCM2835_UART0_BASE+0x80)
>>> +#define BCM2835_UART0_ITIP (BCM2835_UART0_BASE+0x84)
>>> +#define BCM2835_UART0_ITOP (BCM2835_UART0_BASE+0x88)
>>> +#define BCM2835_UART0_TDR (BCM2835_UART0_BASE+0x8C)
>>> +
>>> +#define BCM2835_UART0_MIS_RX 0x10
>>> +#define BCM2835_UART0_MIS_TX 0x20
>>> +#define BCM2835_UART0_IMSC_RX 0x10
>>> +#define BCM2835_UART0_IMSC_TX 0x20
>>> +#define BCM2835_UART0_FR_RXFE 0x10
>>> +#define BCM2835_UART0_FR_TXFF 0x20
>>> +#define BCM2835_UART0_ICR_RX 0x10
>>> +#define BCM2835_UART0_ICR_TX 0x20
>>> +
>>> +
>>> +/** @} */
>>> +
>>> +
>>> +/**
>>> + * @name IRQ Registers
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +#define BCM2835_BASE_INTC (0x2000B200)
>>> +
>>> +#define BCM2835_IRQ_BASIC (BCM2835_BASE_INTC + 0x00)
>>> +#define BCM2835_IRQ_PENDING1 (BCM2835_BASE_INTC + 0x04)
>>> +#define BCM2835_IRQ_PENDING2 (BCM2835_BASE_INTC + 0x08)
>>> +#define BCM2835_IRQ_FIQ_CTRL (BCM2835_BASE_INTC + 0x0C)
>>> +#define BCM2835_IRQ_ENABLE1 (BCM2835_BASE_INTC + 0x10)
>>> +#define BCM2835_IRQ_ENABLE2 (BCM2835_BASE_INTC + 0x14)
>>> +#define BCM2835_IRQ_ENABLE_BASIC (BCM2835_BASE_INTC + 0x18)
>>> +#define BCM2835_IRQ_DISABLE1 (BCM2835_BASE_INTC + 0x1C)
>>> +#define BCM2835_IRQ_DISABLE2 (BCM2835_BASE_INTC + 0x20)
>>> +#define BCM2835_IRQ_DISABLE_BASIC (BCM2835_BASE_INTC + 0x24)
>>> +
>>> +/** @} */
>>> +
>>> +
>>> +/**
>>> + * @name GPU Timer Registers
>>> + *
>>> + * @{
>>> + */
>>> +
>>> +/**
>>> + * NOTE: The GPU uses Compare registers 0 and 2 for
>>> + * it's own RTOS. 1 and 3 are available for use in
>>> + * RTEMS.
>>> + */
>>> +#define BCM2835_GPU_TIMER_BASE (0x20003000)
>>> +
>>> +#define BCM2835_GPU_TIMER_CS (BCM2835_TIMER_BASE+0x00)
>>> +#define BCM2835_GPU_TIMER_CLO (BCM2835_TIMER_BASE+0x04)
>>> +#define BCM2835_GPU_TIMER_CHI (BCM2835_TIMER_BASE+0x08)
>>> +#define BCM2835_GPU_TIMER_C0 (BCM2835_TIMER_BASE+0x0C)
>>> +#define BCM2835_GPU_TIMER_C1 (BCM2835_TIMER_BASE+0x10)
>>> +#define BCM2835_GPU_TIMER_C2 (BCM2835_TIMER_BASE+0x14)
>>> +#define BCM2835_GPU_TIMER_C3 (BCM2835_TIMER_BASE+0x18)
>>> +
>>> +/** @} */
>>> +
>>> +
>>> +/** @} */
>>> +
>>> +#endif /* LIBBSP_ARM_RASPBERRY_PI_RASPBERRY_PI_H */
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/irq/irq.c b/c/src/lib/libbsp/arm/raspberry_pi/irq/irq.c
>>> new file mode 100755
>>> index 0000000..ae0a81d
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/irq/irq.c
>>> @@ -0,0 +1,124 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup bsp_interrupt
>>> + *
>>> + * @brief Interrupt support.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#include <rtems/score/armv4.h>
>>> +
>>> +#include <bsp.h>
>>> +#include <bsp/irq.h>
>>> +#include <bsp/irq-generic.h>
>>> +#include <bsp/raspberry_pi.h>
>>> +#include <bsp/linker-symbols.h>
>>> +#include <bsp/mmu.h>
>>> +
>>> +/*
>>> +** This sets the main exception vectors
>>> +*/
>>> +void raspberry_pi_set_exception_handler(
>>> + Arm_symbolic_exception_name exception,
>>> + void (*handler)(void)
>>> + )
>>> +{
>>> + if ((unsigned) exception < MAX_EXCEPTIONS)
>>> + {
>>> + uint32_t *table = (uint32_t *) bsp_section_vector_begin + MAX_EXCEPTIONS;
>>> + table [exception] = (uint32_t) handler;
>>> +
>>> + }
>>> +}
>>> +
>>> +/*
>>> +** Determine the source of the interrupt and dispatch the correct handler.
>>> +*/
>>> +void bsp_interrupt_dispatch(void)
>>> +{
>>> + rtems_vector_number vector = 255;
>>> +
>>> + /* ARM timer */
>>> + if (BCM2835_REG(BCM2835_IRQ_BASIC) && 0x1)
>>> + {
>>> + vector = BCM2835_IRQ_ID_TIMER_0;
>>> +
>>> + }
>>> + /* UART 0 */
>>> + else if ( BCM2835_REG(BCM2835_IRQ_BASIC) && BCM2835_BIT(19))
>>> + {
>>> + vector = BCM2835_IRQ_ID_UART;
>>> + }
>>> +
>>> + if ( vector < 255 )
>>> + {
>>> + bsp_interrupt_handler_dispatch(vector);
>>> + }
>>> +
>>> +}
>>> +
>>> +rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
>>> +{
>>> + rtems_interrupt_level level;
>>> +
>>> + rtems_interrupt_disable(level);
>>> +
>>> + /* ARM Timer */
>>> + if ( vector == BCM2835_IRQ_ID_TIMER_0 )
>>> + {
>>> + BCM2835_REG(BCM2835_IRQ_ENABLE_BASIC) = 0x1;
>>> + }
>>> + /* UART 0 */
>>> + else if ( vector == BCM2835_IRQ_ID_UART )
>>> + {
>>> + BCM2835_REG(BCM2835_IRQ_ENABLE2) = BCM2835_BIT(25);
>>> +
>>> + }
>>> + rtems_interrupt_enable(level);
>>> +
>>> + return RTEMS_SUCCESSFUL;
>>> +}
>>> +
>>> +rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
>>> +{
>>> + rtems_interrupt_level level;
>>> +
>>> + rtems_interrupt_disable(level);
>>> +
>>> + if ( vector == BCM2835_IRQ_ID_TIMER_0 )
>>> + {
>>> + BCM2835_REG(BCM2835_IRQ_DISABLE_BASIC) = 0x1;
>>> + }
>>> + else if ( vector == BCM2835_IRQ_ID_UART )
>>> + {
>>> + BCM2835_REG(BCM2835_IRQ_DISABLE2) = BCM2835_BIT(25);
>>> + }
>>> + rtems_interrupt_enable(level);
>>> +
>>> + return RTEMS_SUCCESSFUL;
>>> +}
>>> +
>>> +
>>> +void bsp_interrupt_handler_default(rtems_vector_number vector)
>>> +{
>>> + printk("spurious interrupt: %u\n", vector);
>>> +}
>>> +
>>> +rtems_status_code bsp_interrupt_facility_initialize(void)
>>> +{
>>> + raspberry_pi_set_exception_handler(ARM_EXCEPTION_IRQ, _ARMV4_Exception_interrupt);
>>> + return RTEMS_SUCCESSFUL;
>>> +}
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/make/custom/raspberry_pi.cfg b/c/src/lib/libbsp/arm/raspberry_pi/make/custom/raspberry_pi.cfg
>>> new file mode 100755
>>> index 0000000..c33c148
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/make/custom/raspberry_pi.cfg
>>> @@ -0,0 +1,24 @@
>>> +#
>>> +# Config file for RASPBERRY_PI
>>> +#
>>> +# $Id: $
>> Remove $Id$
>>
>>> +#
>>> +
>>> +include $(RTEMS_ROOT)/make/custom/default.cfg
>>> +
>>> +RTEMS_CPU = arm
>>> +
>>> +CPU_CFLAGS = -mcpu=arm1176jzf-s \
>>> + -fomit-frame-pointer -mfpu=vfp -mfloat-abi=soft \
>>> + -mabi=apcs-gnu -ffreestanding
>>> +
>>> +CFLAGS_OPTIMIZE_V = -O2 -g
>>> +
>>> +# This defines the operations performed on the linked executable.
>>> +# is currently required.
>>> +define bsp-post-link
>>> + $(OBJCOPY) -O binary --strip-all \
>>> + $(basename $@).exe $(basename $@)$(DOWNEXT)
>>> + $(SIZE) $(basename $@).exe
>>> +endef
>>> +
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/misc/timer.c b/c/src/lib/libbsp/arm/raspberry_pi/misc/timer.c
>>> new file mode 100755
>>> index 0000000..522858a
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/misc/timer.c
>>> @@ -0,0 +1,52 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Benchmark timer support.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2008, 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * The license and distribution terms for this file may be
>>> + * found in the file LICENSE in this distribution or at
>>> + * http://www.rtems.com/license/LICENSE.
>>> + */
>>> +
>>> +#include <rtems.h>
>>> +#include <rtems/timerdrv.h>
>>> +#include <bsp/raspberry_pi.h>
>>> +
>>> +static bool benchmark_timer_find_average_overhead = false;
>>> +
>>> +static uint64_t benchmark_timer_base;
>>> +
>>> +void benchmark_timer_initialize(void)
>>> +{
>>> + benchmark_timer_base = BCM2835_REG(BCM2835_GPU_TIMER_CLO);
>>> +}
>>> +
>>> +uint32_t benchmark_timer_read(void)
>>> +{
>>> + uint32_t delta = BCM2835_REG(BCM2835_GPU_TIMER_CLO) - benchmark_timer_base;
>>> +
>>> + if (benchmark_timer_find_average_overhead)
>>> + {
>>> + return delta;
>>> + }
>>> + else
>>> + {
>>> + return BCM2835_REG(BCM2835_GPU_TIMER_CLO);
>>> + }
>>> +}
>>> +
>>> +void benchmark_timer_disable_subtracting_average_overhead(bool find_average_overhead)
>>> +{
>>> + benchmark_timer_find_average_overhead = find_average_overhead;
>>> +}
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/preinstall.am b/c/src/lib/libbsp/arm/raspberry_pi/preinstall.am
>>> new file mode 100755
>>> index 0000000..2c6d75f
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/preinstall.am
>>> @@ -0,0 +1,133 @@
>>> +## Automatically generated by ampolish3 - Do not edit
>>> +
>>> +if AMPOLISH3
>>> +$(srcdir)/preinstall.am: Makefile.am
>>> + $(AMPOLISH3) $(srcdir)/Makefile.am > $(srcdir)/preinstall.am
>>> +endif
>>> +
>>> +PREINSTALL_DIRS =
>>> +DISTCLEANFILES += $(PREINSTALL_DIRS)
>>> +
>>> +all-local: $(TMPINSTALL_FILES)
>>> +
>>> +TMPINSTALL_FILES =
>>> +CLEANFILES = $(TMPINSTALL_FILES)
>>> +
>>> +all-am: $(PREINSTALL_FILES)
>>> +
>>> +PREINSTALL_FILES =
>>> +CLEANFILES += $(PREINSTALL_FILES)
>>> +
>>> +$(PROJECT_LIB)/$(dirstamp):
>>> + @$(MKDIR_P) $(PROJECT_LIB)
>>> + @: > $(PROJECT_LIB)/$(dirstamp)
>>> +PREINSTALL_DIRS += $(PROJECT_LIB)/$(dirstamp)
>>> +
>>> +$(PROJECT_INCLUDE)/$(dirstamp):
>>> + @$(MKDIR_P) $(PROJECT_INCLUDE)
>>> + @: > $(PROJECT_INCLUDE)/$(dirstamp)
>>> +PREINSTALL_DIRS += $(PROJECT_INCLUDE)/$(dirstamp)
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/$(dirstamp):
>>> + @$(MKDIR_P) $(PROJECT_INCLUDE)/bsp
>>> + @: > $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> +PREINSTALL_DIRS += $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> +
>>> +$(PROJECT_INCLUDE)/libcpu/$(dirstamp):
>>> + @$(MKDIR_P) $(PROJECT_INCLUDE)/libcpu
>>> + @: > $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
>>> +PREINSTALL_DIRS += $(PROJECT_INCLUDE)/libcpu/$(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: ../../shared/include/tm27.h $(PROJECT_INCLUDE)/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/tm27.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/tm27.h
>>> +
>>> +$(PROJECT_INCLUDE)/coverhd.h: ../../shared/include/coverhd.h $(PROJECT_INCLUDE)/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/coverhd.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/coverhd.h
>>> +
>>> +$(PROJECT_INCLUDE)/bspopts.h: include/bspopts.h $(PROJECT_INCLUDE)/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bspopts.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bspopts.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/bootcard.h: ../../shared/include/bootcard.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/bootcard.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/bootcard.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/utility.h: ../../shared/include/utility.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/utility.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/utility.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/irq-generic.h: ../../shared/include/irq-generic.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq-generic.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq-generic.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/irq-info.h: ../../shared/include/irq-info.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq-info.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq-info.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/stackalloc.h: ../../shared/include/stackalloc.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/stackalloc.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/stackalloc.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/uart-output-char.h: ../../shared/include/uart-output-char.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/uart-output-char.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/uart-output-char.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/tod.h: ../../shared/tod.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/tod.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/tod.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/linker-symbols.h: ../shared/include/linker-symbols.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/linker-symbols.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/linker-symbols.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/start.h: ../shared/include/start.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/start.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/start.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/lpc-timer.h: ../shared/lpc/include/lpc-timer.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/lpc-timer.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/lpc-timer.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/lpc-dma.h: ../shared/lpc/include/lpc-dma.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/lpc-dma.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/lpc-dma.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/irq.h: include/irq.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/mmu.h: include/mmu.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/mmu.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/mmu.h
>>> +
>>> +$(PROJECT_INCLUDE)/bsp/raspberry_pi.h: include/raspberry_pi.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/raspberry_pi.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/raspberry_pi.h
>>> +
>>> +
>>> +$(PROJECT_INCLUDE)/libcpu/arm-cp15.h: ../../../libcpu/arm/shared/include/arm-cp15.h $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libcpu/arm-cp15.h
>>> +PREINSTALL_FILES += $(PROJECT_INCLUDE)/libcpu/arm-cp15.h
>>> +
>>> +$(PROJECT_LIB)/start.$(OBJEXT): start.$(OBJEXT) $(PROJECT_LIB)/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_LIB)/start.$(OBJEXT)
>>> +TMPINSTALL_FILES += $(PROJECT_LIB)/start.$(OBJEXT)
>>> +
>>> +$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
>>> +TMPINSTALL_FILES += $(PROJECT_LIB)/linkcmds
>>> +
>>> +$(PROJECT_LIB)/linkcmds.base: ../shared/startup/linkcmds.base $(PROJECT_LIB)/$(dirstamp)
>>> + $(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds.base
>>> +TMPINSTALL_FILES += $(PROJECT_LIB)/linkcmds.base
>>> +
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/startup/bspreset.c b/c/src/lib/libbsp/arm/raspberry_pi/startup/bspreset.c
>>> new file mode 100755
>>> index 0000000..c3583f0
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/startup/bspreset.c
>>> @@ -0,0 +1,31 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Reset code.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#include <rtems.h>
>>> +
>>> +#include <bsp/bootcard.h>
>>> +
>>> +void bsp_reset( void)
>>> +{
>>> + while (true) {
>>> + /* Do nothing */
>>> + }
>>> +}
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/startup/bspstart.c b/c/src/lib/libbsp/arm/raspberry_pi/startup/bspstart.c
>>> new file mode 100755
>>> index 0000000..8075f75
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/startup/bspstart.c
>>> @@ -0,0 +1,33 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Startup code.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009, 2010
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#include <bsp.h>
>>> +#include <bsp/bootcard.h>
>>> +#include <bsp/irq-generic.h>
>>> +#include <bsp/irq.h>
>>> +#include <bsp/linker-symbols.h>
>>> +#include <bsp/stackalloc.h>
>>> +#include <bsp/raspberry_pi.h>
>>> +
>>> +void bsp_start(void)
>>> +{
>>> + bsp_interrupt_initialize();
>>> +}
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/startup/bspstarthooks.c b/c/src/lib/libbsp/arm/raspberry_pi/startup/bspstarthooks.c
>>> new file mode 100755
>>> index 0000000..9373baf
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/startup/bspstarthooks.c
>>> @@ -0,0 +1,112 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Startup code.
>>> + */
>>> +
>>> +/*
>>> + * Copyright (c) 2009
>>> + * embedded brains GmbH
>>> + * Obere Lagerstr. 30
>>> + * D-82178 Puchheim
>>> + * Germany
>>> + * <rtems at embedded-brains.de>
>>> + *
>>> + * 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.
>>> + */
>>> +
>>> +#include <stdbool.h>
>>> +
>>> +#include <bspopts.h>
>>> +#include <bsp/start.h>
>>> +#include <bsp/raspberry_pi.h>
>>> +#include <bsp/mmu.h>
>>> +#include <bsp/linker-symbols.h>
>>> +#include <bsp/uart-output-char.h>
>>> +
>>> +static void BSP_START_TEXT_SECTION clear_bss(void)
>>> +{
>>> + const int *end = (const int *) bsp_section_bss_end;
>>> + int *out = (int *) bsp_section_bss_begin;
>>> +
>>> + /* Clear BSS */
>>> + while (out != end) {
>>> + *out = 0;
>>> + ++out;
>>> + }
>>> +}
>>> +
>>> +static void BSP_START_TEXT_SECTION raspberry_pi_cache_setup(void)
>>> +{
>>> + uint32_t ctrl = 0;
>>> +
>>> + /* Disable MMU and cache, basic settings */
>>> + ctrl = arm_cp15_get_control();
>>> + ctrl &= ~(ARM_CP15_CTRL_I | ARM_CP15_CTRL_R | ARM_CP15_CTRL_C
>>> + | ARM_CP15_CTRL_V | ARM_CP15_CTRL_M);
>>> + ctrl |= ARM_CP15_CTRL_S | ARM_CP15_CTRL_A;
>>> + arm_cp15_set_control(ctrl);
>>> +
>>> + arm_cp15_cache_invalidate();
>>> + arm_cp15_tlb_invalidate();
>>> +
>>> +}
>>> +
>>> +
>>> +void BSP_START_TEXT_SECTION bsp_start_hook_0(void)
>>> +{
>>> + raspberry_pi_cache_setup();
>>> +}
>>> +
>>> +
>>> +void BSP_START_TEXT_SECTION bsp_start_hook_1(void)
>>> +{
>>> +
>>> + /* Copy .text section */
>>> + arm_cp15_instruction_cache_invalidate();
>>> + bsp_start_memcpy(
>>> + (int *) bsp_section_text_begin,
>>> + (const int *) bsp_section_text_load_begin,
>>> + (size_t) bsp_section_text_size
>>> + );
>>> +
>>> + /* Copy .rodata section */
>>> + arm_cp15_instruction_cache_invalidate();
>>> + bsp_start_memcpy(
>>> + (int *) bsp_section_rodata_begin,
>>> + (const int *) bsp_section_rodata_load_begin,
>>> + (size_t) bsp_section_rodata_size
>>> + );
>>> +
>>> + /* Copy .data section */
>>> + arm_cp15_instruction_cache_invalidate();
>>> + bsp_start_memcpy(
>>> + (int *) bsp_section_data_begin,
>>> + (const int *) bsp_section_data_load_begin,
>>> + (size_t) bsp_section_data_size
>>> + );
>>> +
>>> + /* Copy .fast_text section */
>>> + arm_cp15_instruction_cache_invalidate();
>>> + bsp_start_memcpy(
>>> + (int *) bsp_section_fast_text_begin,
>>> + (const int *) bsp_section_fast_text_load_begin,
>>> + (size_t) bsp_section_fast_text_size
>>> + );
>>> +
>>> + /* Copy .fast_data section */
>>> + arm_cp15_instruction_cache_invalidate();
>>> + bsp_start_memcpy(
>>> + (int *) bsp_section_fast_data_begin,
>>> + (const int *) bsp_section_fast_data_load_begin,
>>> + (size_t) bsp_section_fast_data_size
>>> + );
>>> +
>>> + /* Clear .bss section */
>>> + clear_bss();
>>> +
>>> +}
>>> diff --git a/c/src/lib/libbsp/arm/raspberry_pi/startup/linkcmds b/c/src/lib/libbsp/arm/raspberry_pi/startup/linkcmds
>>> new file mode 100755
>>> index 0000000..b9e6f02
>>> --- /dev/null
>>> +++ b/c/src/lib/libbsp/arm/raspberry_pi/startup/linkcmds
>>> @@ -0,0 +1,62 @@
>>> +/**
>>> + * @file
>>> + *
>>> + * @ingroup raspberry_pi
>>> + *
>>> + * @brief Memory map.
>>> + */
>>> +
>>> +/**
>>> + * @defgroup raspberry_pi Memory Map
>>> + *
>>> + * @ingroup bsp_linker
>>> + *
>>> + * @brief Raspberry Pi memory map.
>>> + *
>>> + * <table>
>>> + * <tr><th>Region Name</th><th>Region Begin</th><th>Region Size</th></tr>
>>> + * <tr><td>VECTOR_RAM</td><td>0x08000000</td><td>8k</td></tr>
>>> + * <tr><td>RAM</td><td>0x80008000</td><td>128M</td></tr>
>>> + * </table>
>>> + *
>>> + * <table>
>>> + * <tr><th>Section Name</th><th>Section Runtime Region</th><th>Section Load Region</th></tr>
>>> + * <tr><td>.start</td><td>RAM</td><td></td></tr>
>>> + * <tr><td>.vector</td><td>VECTOR_RAM</td><td></td></tr>
>>> + * <tr><td>.text</td><td>RAM</td><td>RAM_EXT</td></tr>
>>> + * <tr><td>.rodata</td><td>RAM</td><td>RAM_EXT</td></tr>
>>> + * <tr><td>.data</td><td>RAM</td><td>RAM_EXT</td></tr>
>>> + * <tr><td>.fast</td><td>RAM</td><td>RAM_EXT</td></tr>
>>> + * <tr><td>.bss</td><td>RAM</td><td></td></tr>
>>> + * <tr><td>.work</td><td>RAM</td><td></td></tr>
>>> + * <tr><td>.stack</td><td>RAM</td><td></td></tr>
>>> + * </table>
>>> + */
>>> +
>>> +MEMORY {
>>> + VECTOR_RAM (AIW) : ORIGIN = 0x0 , LENGTH = 0x8000
>>> + RAM (AIW) : ORIGIN = 0x00008000, LENGTH = 128M - 0x8000
>>> +}
>>> +
>>> +REGION_ALIAS ("REGION_START", RAM);
>>> +REGION_ALIAS ("REGION_VECTOR", VECTOR_RAM);
>>> +REGION_ALIAS ("REGION_TEXT", RAM);
>>> +REGION_ALIAS ("REGION_TEXT_LOAD", RAM);
>>> +REGION_ALIAS ("REGION_RODATA", RAM);
>>> +REGION_ALIAS ("REGION_RODATA_LOAD", RAM);
>>> +REGION_ALIAS ("REGION_DATA", RAM);
>>> +REGION_ALIAS ("REGION_DATA_LOAD", RAM);
>>> +REGION_ALIAS ("REGION_FAST_TEXT", RAM);
>>> +REGION_ALIAS ("REGION_FAST_TEXT_LOAD", RAM);
>>> +REGION_ALIAS ("REGION_FAST_DATA", RAM);
>>> +REGION_ALIAS ("REGION_FAST_DATA_LOAD", RAM);
>>> +REGION_ALIAS ("REGION_BSS", RAM);
>>> +REGION_ALIAS ("REGION_WORK", RAM);
>>> +REGION_ALIAS ("REGION_STACK", RAM);
>>> +
>>> +bsp_stack_irq_size = DEFINED (bsp_stack_irq_size) ? bsp_stack_irq_size : 4096;
>>> +bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 1024;
>>> +
>>> +bsp_section_robarrier_align = DEFINED (bsp_section_robarrier_align) ? bsp_section_robarrier_align : 1M;
>>> +
>>> +INCLUDE linkcmds.armv4
>>> diff --git a/cpukit/score/cpu/arm/rtems/score/arm.h b/cpukit/score/cpu/arm/rtems/score/arm.h
>>> index 8f8c837..8471bb4 100644
>>> --- a/cpukit/score/cpu/arm/rtems/score/arm.h
>>> +++ b/cpukit/score/cpu/arm/rtems/score/arm.h
>>> @@ -69,6 +69,10 @@ extern "C" {
>>> # define CPU_MODEL_NAME "ARMv6J"
>>> # define ARM_MULTILIB_ARCH_V4
>>>
>>> +#elif defined(__ARM_ARCH_6ZK__)
>>> +# define CPU_MODEL_NAME "ARMv6ZK"
>>> +# define ARM_MULTILIB_ARCH_V4
>>> +
>> This change has been committed separately. You may wish to rebase your
>> work on the rtems.git.
>>
>>> #elif defined(__ARM_ARCH_6M__)
>>> # define CPU_MODEL_NAME "ARMv6M"
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> rtems-devel mailing list
>>> rtems-devel at rtems.org
>>> http://www.rtems.org/mailman/listinfo/rtems-devel
>
> _______________________________________________
> rtems-devel mailing list
> rtems-devel at rtems.org
> http://www.rtems.org/mailman/listinfo/rtems-devel
--
Joel Sherrill, Ph.D. Director of Research & Development
joel.sherrill at OARcorp.com On-Line Applications Research
Ask me about RTEMS: a free RTOS Huntsville AL 35805
Support Available (256) 722-9985
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