[PATCH] Add raspberry pi board BSP
Gedare Bloom
gedare at rtems.org
Mon Feb 25 15:06:49 UTC 2013
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"
>
>
>
>
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