forked from Imagelibrary/rtems
bsp/raspberrypi: New BSP
This commit is contained in:
Alan Cudmore
committed by
Sebastian Huber
Sebastian Huber
parent
f2a1ba5002
commit
c32b1efa43
@@ -24,6 +24,8 @@ AC_DEFUN([RTEMS_CHECK_BSPDIR],
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AC_CONFIG_SUBDIRS([lpc32xx]);;
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nds )
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AC_CONFIG_SUBDIRS([nds]);;
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raspberrypi )
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AC_CONFIG_SUBDIRS([raspberrypi]);;
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rtl22xx )
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AC_CONFIG_SUBDIRS([rtl22xx]);;
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smdk2410 )
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154
c/src/lib/libbsp/arm/raspberrypi/Makefile.am
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154
c/src/lib/libbsp/arm/raspberrypi/Makefile.am
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@@ -0,0 +1,154 @@
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##
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#
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# @file
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#
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# @brief Makefile of LibBSP for the raspberrypi board.
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#
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ACLOCAL_AMFLAGS = -I ../../../../aclocal
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include $(top_srcdir)/../../../../automake/compile.am
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include_bspdir = $(includedir)/bsp
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include_libcpudir = $(includedir)/libcpu
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dist_project_lib_DATA = bsp_specs
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###############################################################################
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# Header #
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###############################################################################
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include_HEADERS = include/bsp.h
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include_HEADERS += ../../shared/include/tm27.h
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nodist_include_HEADERS = ../../shared/include/coverhd.h \
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include/bspopts.h
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nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
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include_bsp_HEADERS =
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include_bsp_HEADERS += ../../shared/include/utility.h
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include_bsp_HEADERS += ../../shared/include/irq-generic.h
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include_bsp_HEADERS += ../../shared/include/irq-info.h
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include_bsp_HEADERS += ../../shared/include/stackalloc.h
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include_bsp_HEADERS += ../../shared/include/uart-output-char.h
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include_bsp_HEADERS += ../../shared/tod.h
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include_bsp_HEADERS += ../shared/include/linker-symbols.h
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include_bsp_HEADERS += ../shared/include/start.h
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include_bsp_HEADERS += ../shared/lpc/include/lpc-timer.h
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include_bsp_HEADERS += ../shared/lpc/include/lpc-dma.h
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include_bsp_HEADERS += include/irq.h
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include_bsp_HEADERS += include/mmu.h
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include_bsp_HEADERS += include/usart.h
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include_bsp_HEADERS += include/raspberrypi.h
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include_libcpu_HEADERS = ../../../libcpu/arm/shared/include/cache_.h \
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../../../libcpu/arm/shared/include/arm-cp15.h
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###############################################################################
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# Data #
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###############################################################################
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noinst_LIBRARIES = libbspstart.a
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libbspstart_a_SOURCES = ../shared/start/start.S
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project_lib_DATA = start.$(OBJEXT)
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project_lib_DATA += startup/linkcmds
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project_lib_DATA += ../shared/startup/linkcmds.base
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EXTRA_DIST = startup/linkcmds
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###############################################################################
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# LibBSP #
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###############################################################################
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noinst_LIBRARIES += libbsp.a
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libbsp_a_SOURCES =
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libbsp_a_CPPFLAGS =
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libbsp_a_LIBADD =
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# Shared
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libbsp_a_SOURCES += ../../shared/bootcard.c
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libbsp_a_SOURCES += ../../shared/bspclean.c
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libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
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libbsp_a_SOURCES += ../../shared/bsplibc.c
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libbsp_a_SOURCES += ../../shared/bsppost.c
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libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
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libbsp_a_SOURCES += ../../shared/bsppretaskinghook.c
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libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
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libbsp_a_SOURCES += ../../shared/sbrk.c
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libbsp_a_SOURCES += ../../shared/src/stackalloc.c
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libbsp_a_SOURCES += ../shared/abort/simple_abort.c
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libbsp_a_SOURCES += ../shared/startup/bsp-start-memcpy.S
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# Startup
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libbsp_a_SOURCES += startup/bspreset.c
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libbsp_a_SOURCES += startup/bspstart.c
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# IRQ
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libbsp_a_SOURCES += ../../shared/src/irq-default-handler.c
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libbsp_a_SOURCES += ../../shared/src/irq-generic.c
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libbsp_a_SOURCES += ../../shared/src/irq-info.c
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libbsp_a_SOURCES += ../../shared/src/irq-legacy.c
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libbsp_a_SOURCES += ../../shared/src/irq-server.c
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libbsp_a_SOURCES += ../../shared/src/irq-shell.c
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libbsp_a_SOURCES += irq/irq.c
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# Console
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libbsp_a_SOURCES += ../../shared/console.c
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libbsp_a_SOURCES += ../../shared/console_control.c
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libbsp_a_SOURCES += ../../shared/console_read.c
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libbsp_a_SOURCES += ../../shared/console_select.c
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libbsp_a_SOURCES += ../../shared/console_write.c
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libbsp_a_SOURCES += console/console-config.c
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libbsp_a_SOURCES += console/usart.c
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# clock
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libbsp_a_SOURCES += clock/clockdrv.c ../../../shared/clockdrv_shell.h
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# Timer
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libbsp_a_SOURCES += misc/timer.c
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# RTC
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# SSP
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# I2C
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# Cache
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libbsp_a_SOURCES += ../../../libcpu/shared/src/cache_manager.c
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libbsp_a_SOURCES += ../../../libcpu/arm/shared/include/cache_.h
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libbsp_a_CPPFLAGS += -I$(srcdir)/../../../libcpu/arm/shared/include
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# Start hooks
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libbsp_a_SOURCES += startup/bspstarthooks.c
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###############################################################################
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# Network #
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###############################################################################
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#if HAS_NETWORKING
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#
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#noinst_PROGRAMS = network.rel
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#
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#network_rel_SOURCES = ../shared/lpc/network/lpc-ethernet.c
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#network_rel_CPPFLAGS = $(AM_CPPFLAGS) -D__INSIDE_RTEMS_BSD_TCPIP_STACK__ -D__BSD_VISIBLE
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#network_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
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#
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#
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#libbsp_a_LIBADD += network.rel
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#
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#endif
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###############################################################################
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# Special Rules #
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###############################################################################
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DISTCLEANFILES = include/bspopts.h
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include $(srcdir)/preinstall.am
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include $(top_srcdir)/../../../../automake/local.am
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65
c/src/lib/libbsp/arm/raspberrypi/README
Normal file
65
c/src/lib/libbsp/arm/raspberrypi/README
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@@ -0,0 +1,65 @@
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BSP for the Raspberry Pi ARM board
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This is a basic port that should work on either Model A or Model B.
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It currently supports the following devices:
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o Console using the PL011 UART0
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The console driver only works with polled mode right now,
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the interrupt code is there, but it does not work yet.
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The console driver is currently hardcoded at 115k 8N1
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o Clock uses the internal ARM timer
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The Raspberry Pi can be overclocked through the config.txt file, this
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would affect the duration of the clock tick.
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o Benchmark timer reads the lower 32 bit GPU timer register
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To run an RTEMS binary, it must be stripped and loaded on the SD card along with
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the following files:
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bootcode.bin
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config.txt
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loader.bin
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start.elf
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kernel.img ( the RTEMS binary, you can change the name in config.txt )
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These files can be obtained from a Linux installation image, or from here:
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https://github.com/raspberrypi/firmware
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I used an old 256MB SD card to boot RTEMS.
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Much more information about the SD card file and bootloader can be found here:
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http://elinux.org/RPi_Hub
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http://www.raspberrypi.org
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The linker script is set up for 128MB, so it can be used with a GPU/ARM split
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of 128/128.
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The bootloader that is used on the SD card determines the split of RAM between the
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ARM and the GPU. It might make sense to adjust the GPU/ARM memory split to give
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more memory to RTEMS, especially on a 512MB board.
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To do:
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It would be nice to get support in the BSP for the following:
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o SD card
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o USB and USB 10/100 network chip on Model B
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o SPI
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o GPIO
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o ARM MMU
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o Graphics console
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o Sound
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Credits and links:
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There is a wealth of code and information to reference on the raspberrypi.org bare metal forums:
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http://www.raspberrypi.org/phpBB3/viewforum.php?f=72
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I found information about how to program the timers, interrupts, and UART 0
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from the examples provided by:
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David Welch:
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https://github.com/dwelch67/raspberrypi
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The readme file at his github repository has valuable information about connecting a UART cable, JTAG etc.
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Steve Bate:
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http://www.stevebate.net/chibios-rpi/GettingStarted.html
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Steve provided a port of the Chibios RTOS to the raspberry Pi
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James Walmsley:
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http://www.raspberrypi.org/phpBB3/viewtopic.php?f=72&t=22423
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James ported FreeRTOS to the raspberry Pi.
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13
c/src/lib/libbsp/arm/raspberrypi/bsp_specs
Normal file
13
c/src/lib/libbsp/arm/raspberrypi/bsp_specs
Normal file
@@ -0,0 +1,13 @@
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%rename endfile old_endfile
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%rename startfile old_startfile
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%rename link old_link
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*startfile:
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%{!qrtems: %(old_startfile)} \
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%{!nostdlib: %{qrtems: start.o%s crti.o%s crtbegin.o%s -e _start}}
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*link:
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%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N}
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*endfile:
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%{!qrtems: *(old_endfiles)} %{qrtems: crtend.o%s crtn.o%s }
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91
c/src/lib/libbsp/arm/raspberrypi/clock/clockdrv.c
Normal file
91
c/src/lib/libbsp/arm/raspberrypi/clock/clockdrv.c
Normal file
@@ -0,0 +1,91 @@
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/*
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* BCM2835 Clock driver
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*
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* Copyright (c) 2013 Alan Cudmore
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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*
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* http://www.rtems.com/license/LICENSE
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*
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*/
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#include <rtems.h>
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#include <bsp.h>
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#include <bsp/irq.h>
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#include <bsp/raspberrypi.h>
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/* This is defined in ../../../shared/clockdrv_shell.h */
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void Clock_isr(rtems_irq_hdl_param arg);
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static void raspberrypi_clock_at_tick(void)
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{
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BCM2835_REG(BCM2835_TIMER_CLI) = 0;
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}
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static void raspberrypi_clock_handler_install(void)
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{
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rtems_status_code sc = RTEMS_SUCCESSFUL;
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sc = rtems_interrupt_handler_install(
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BCM2835_IRQ_ID_TIMER_0,
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"Clock",
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RTEMS_INTERRUPT_UNIQUE,
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(rtems_interrupt_handler) Clock_isr,
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NULL
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);
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if (sc != RTEMS_SUCCESSFUL) {
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rtems_fatal_error_occurred(0xdeadbeef);
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}
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}
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static void raspberrypi_clock_initialize(void)
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{
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BCM2835_REG(BCM2835_TIMER_CTL) = 0x003E0000;
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BCM2835_REG(BCM2835_TIMER_LOD) = 10000 - 1;
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BCM2835_REG(BCM2835_TIMER_RLD) = 10000 - 1;
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BCM2835_REG(BCM2835_TIMER_DIV) = BCM2835_TIMER_PRESCALE;
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BCM2835_REG(BCM2835_TIMER_CLI) = 0;
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BCM2835_REG(BCM2835_TIMER_CTL) = 0x003E00A2;
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}
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static void raspberrypi_clock_cleanup(void)
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{
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rtems_status_code sc = RTEMS_SUCCESSFUL;
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/* Remove interrupt handler */
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sc = rtems_interrupt_handler_remove(
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BCM2835_IRQ_ID_TIMER_0,
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(rtems_interrupt_handler) Clock_isr,
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NULL
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);
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if (sc != RTEMS_SUCCESSFUL) {
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rtems_fatal_error_occurred(0xdeadbeef);
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}
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}
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/*
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* Return the nanoseconds since last tick
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*/
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static uint32_t raspberrypi_clock_nanoseconds_since_last_tick(void)
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{
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return 0;
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}
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#define Clock_driver_support_at_tick() raspberrypi_clock_at_tick()
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#define Clock_driver_support_initialize_hardware() raspberrypi_clock_initialize()
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#define Clock_driver_support_install_isr(isr, old_isr) \
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do { \
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raspberrypi_clock_handler_install(); \
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old_isr = NULL; \
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} while (0)
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#define Clock_driver_support_shutdown_hardware() raspberrypi_clock_cleanup()
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#define Clock_driver_nanoseconds_since_last_tick \
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raspberrypi_clock_nanoseconds_since_last_tick
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#include "../../../shared/clockdrv_shell.h"
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31
c/src/lib/libbsp/arm/raspberrypi/configure.ac
Normal file
31
c/src/lib/libbsp/arm/raspberrypi/configure.ac
Normal file
@@ -0,0 +1,31 @@
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##
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#
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# @file
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#
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# @brief Configure script of LibBSP for the Raspberry Pi boards.
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#
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AC_PREREQ([2.68])
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AC_INIT([rtems-c-src-lib-libbsp-arm-raspberrypi],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
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AC_CONFIG_SRCDIR([bsp_specs])
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RTEMS_TOP(../../../../../..)
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RTEMS_CANONICAL_TARGET_CPU
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AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
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RTEMS_BSP_CONFIGURE
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RTEMS_PROG_CC_FOR_TARGET
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RTEMS_CANONICALIZE_TOOLS
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RTEMS_PROG_CCAS
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RTEMS_CHECK_NETWORKING
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AM_CONDITIONAL(HAS_NETWORKING,test "$HAS_NETWORKING" = "yes")
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RTEMS_BSPOPTS_SET([BSP_START_RESET_VECTOR],[*],[])
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RTEMS_BSPOPTS_HELP([BSP_START_RESET_VECTOR],[reset vector address for BSP start])
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RTEMS_BSP_CLEANUP_OPTIONS(0, 0)
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RTEMS_BSP_LINKCMDS
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AC_CONFIG_FILES([Makefile])
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AC_OUTPUT
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53
c/src/lib/libbsp/arm/raspberrypi/console/console-config.c
Normal file
53
c/src/lib/libbsp/arm/raspberrypi/console/console-config.c
Normal file
@@ -0,0 +1,53 @@
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/*
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* Copyright (c) 2013 Alan Cudmore
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*
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* The license and distribution terms for this file may be
|
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* found in the file LICENSE in this distribution or at
|
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*
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* http://www.rtems.com/license/LICENSE
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*
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*/
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#include <rtems/bspIo.h>
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#include <libchip/serial.h>
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#include <bspopts.h>
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#include <bsp/irq.h>
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#include <bsp/usart.h>
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#include <bsp/raspberrypi.h>
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console_tbl Console_Configuration_Ports [] = {
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{
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.sDeviceName = "/dev/ttyS0",
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.deviceType = SERIAL_CUSTOM,
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.pDeviceFns = &bcm2835_usart_fns,
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.deviceProbe = NULL,
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.pDeviceFlow = NULL,
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.ulCtrlPort1 = BCM2835_UART0_BASE,
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.ulCtrlPort2 = 0,
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.ulClock = USART0_DEFAULT_BAUD,
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.ulIntVector = BCM2835_IRQ_ID_UART
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}
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};
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#define PORT_COUNT \
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(sizeof(Console_Configuration_Ports) \
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/ sizeof(Console_Configuration_Ports [0]))
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unsigned long Console_Configuration_Count = PORT_COUNT;
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static void output_char(char c)
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{
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const console_fns *con =
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Console_Configuration_Ports [Console_Port_Minor].pDeviceFns;
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if (c == '\n') {
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con->deviceWritePolled((int) Console_Port_Minor, '\r');
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}
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con->deviceWritePolled((int) Console_Port_Minor, c);
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}
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BSP_output_char_function_type BSP_output_char = output_char;
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BSP_polling_getchar_function_type BSP_poll_char = NULL;
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160
c/src/lib/libbsp/arm/raspberrypi/console/usart.c
Normal file
160
c/src/lib/libbsp/arm/raspberrypi/console/usart.c
Normal file
@@ -0,0 +1,160 @@
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/*
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* Copyright (c) 2013 Alan Cudmore
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*
|
||||
* 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
|
||||
*
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||||
*/
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#include <libchip/sersupp.h>
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#include <bsp.h>
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#include <bsp/irq.h>
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#include <bsp/usart.h>
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#include <bsp/raspberrypi.h>
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|
||||
static void usart_delay(uint32_t n)
|
||||
{
|
||||
volatile uint32_t i = 0;
|
||||
for(i = 0; i < n; i++);
|
||||
}
|
||||
|
||||
static rtems_vector_number usart_get_irq_number(const console_tbl *ct)
|
||||
{
|
||||
return ct->ulIntVector;
|
||||
}
|
||||
|
||||
static uint32_t usart_get_baud(const console_tbl *ct)
|
||||
{
|
||||
return ct->ulClock;
|
||||
}
|
||||
|
||||
static void usart_set_baud(int minor, int baud)
|
||||
{
|
||||
/*
|
||||
** Nothing for now
|
||||
*/
|
||||
return;
|
||||
}
|
||||
|
||||
static void usart_initialize(int minor)
|
||||
{
|
||||
unsigned int gpio_reg;
|
||||
|
||||
/*
|
||||
** 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;
|
||||
usart_delay(150);
|
||||
BCM2835_REG(BCM2835_GPIO_GPPUDCLK0) = (1<<14)|(1<<15);
|
||||
usart_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;
|
||||
|
||||
usart_set_baud(minor, 115000);
|
||||
|
||||
}
|
||||
|
||||
static int usart_first_open(int major, int minor, void *arg)
|
||||
{
|
||||
rtems_libio_open_close_args_t *oc = (rtems_libio_open_close_args_t *) arg;
|
||||
struct rtems_termios_tty *tty = (struct rtems_termios_tty *) oc->iop->data1;
|
||||
const console_tbl *ct = Console_Port_Tbl [minor];
|
||||
console_data *cd = &Console_Port_Data [minor];
|
||||
|
||||
cd->termios_data = tty;
|
||||
rtems_termios_set_initial_baud(tty, ct->ulClock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int usart_last_close(int major, int minor, void *arg)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int usart_read_polled(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 void usart_write_polled(int minor, char c)
|
||||
{
|
||||
while (1)
|
||||
{
|
||||
if ((BCM2835_REG(BCM2835_UART0_FR) & BCM2835_UART0_FR_TXFF) == 0) break;
|
||||
}
|
||||
BCM2835_REG(BCM2835_UART0_DR) = c;
|
||||
}
|
||||
|
||||
static ssize_t usart_write_support_polled(
|
||||
int minor,
|
||||
const char *s,
|
||||
size_t n
|
||||
)
|
||||
{
|
||||
ssize_t i = 0;
|
||||
|
||||
for (i = 0; i < n; ++i)
|
||||
{
|
||||
usart_write_polled(minor, s [i]);
|
||||
}
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
static int usart_set_attributes(int minor, const struct termios *term)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
const console_fns bcm2835_usart_fns = {
|
||||
.deviceProbe = libchip_serial_default_probe,
|
||||
.deviceFirstOpen = usart_first_open,
|
||||
.deviceLastClose = usart_last_close,
|
||||
.deviceRead = usart_read_polled,
|
||||
.deviceWrite = usart_write_support_polled,
|
||||
.deviceInitialize = usart_initialize,
|
||||
.deviceWritePolled = usart_write_polled,
|
||||
.deviceSetAttributes = usart_set_attributes,
|
||||
.deviceOutputUsesInterrupts = false
|
||||
};
|
||||
38
c/src/lib/libbsp/arm/raspberrypi/include/bsp.h
Normal file
38
c/src/lib/libbsp/arm/raspberrypi/include/bsp.h
Normal file
@@ -0,0 +1,38 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief Global BSP definitions.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 Alan Cudmore
|
||||
*
|
||||
* 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_RASPBERRYPI_BSP_H
|
||||
#define LIBBSP_ARM_RASPBERRYPI_BSP_H
|
||||
|
||||
#include <bspopts.h>
|
||||
#include <rtems.h>
|
||||
#include <rtems/console.h>
|
||||
#include <rtems/clockdrv.h>
|
||||
#include <bsp/raspberrypi.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#define BSP_FEATURE_IRQ_EXTENSION
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* LIBBSP_ARM_RASPBERRYPI_BSP_H */
|
||||
62
c/src/lib/libbsp/arm/raspberrypi/include/irq.h
Normal file
62
c/src/lib/libbsp/arm/raspberrypi/include/irq.h
Normal file
@@ -0,0 +1,62 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup bsp_interrupt
|
||||
*
|
||||
* @brief Interrupt definitions.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 Alan Cudmore
|
||||
*
|
||||
* 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_RASBPERRYPI_IRQ_H
|
||||
#define LIBBSP_ARM_RASPBERRYPI_IRQ_H
|
||||
|
||||
#ifndef ASM
|
||||
|
||||
#include <rtems.h>
|
||||
#include <rtems/irq.h>
|
||||
#include <rtems/irq-extension.h>
|
||||
|
||||
#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 raspberrypi_set_exception_handler(Arm_symbolic_exception_name exception,
|
||||
void (*handler)(void));
|
||||
|
||||
#endif /* ASM */
|
||||
#endif /* LIBBSP_ARM_RASPBERRYPI_IRQ_H */
|
||||
68
c/src/lib/libbsp/arm/raspberrypi/include/mmu.h
Normal file
68
c/src/lib/libbsp/arm/raspberrypi/include/mmu.h
Normal file
@@ -0,0 +1,68 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup rapberrypi_mmu
|
||||
*
|
||||
* @brief MMU API.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 Alan Cudmore.
|
||||
* based on work by:
|
||||
* Copyright (c) 2009
|
||||
* embedded brains GmbH
|
||||
* Obere Lagerstr. 30
|
||||
* D-82178 Puchheim
|
||||
* Germany
|
||||
* <rtems@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_RASPBERRYPI_MMU_H
|
||||
#define LIBBSP_ARM_RASPBERRYPI_MMU_H
|
||||
|
||||
#include <libcpu/arm-cp15.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
/**
|
||||
* @defgroup raspberrypi_mmu MMU Support
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief MMU support.
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
#define RASPBERRYPI_MMU_CLIENT_DOMAIN 15U
|
||||
|
||||
#define RASPBERRYPI_MMU_READ_ONLY \
|
||||
((RASPBERRYPI_MMU_CLIENT_DOMAIN << ARM_MMU_SECT_DOMAIN_SHIFT) \
|
||||
| ARM_MMU_SECT_DEFAULT)
|
||||
|
||||
#define RASPBERRYPI_MMU_READ_ONLY_CACHED \
|
||||
(RASPBERRYPI_MMU_READ_ONLY | ARM_MMU_SECT_C | ARM_MMU_SECT_B)
|
||||
|
||||
#define RASPBERRYPI_MMU_READ_WRITE \
|
||||
((RASPBERRYPI_MMU_CLIENT_DOMAIN << ARM_MMU_SECT_DOMAIN_SHIFT) \
|
||||
| ARM_MMU_SECT_AP_0 \
|
||||
| ARM_MMU_SECT_DEFAULT)
|
||||
|
||||
#define RASPBERRYPI_MMU_READ_WRITE_CACHED \
|
||||
(RASPBERRYPI_MMU_READ_WRITE | ARM_MMU_SECT_C | ARM_MMU_SECT_B)
|
||||
|
||||
/** @} */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* LIBBSP_ARM_RASPBERRYPI_MMU_H */
|
||||
194
c/src/lib/libbsp/arm/raspberrypi/include/raspberrypi.h
Normal file
194
c/src/lib/libbsp/arm/raspberrypi/include/raspberrypi.h
Normal file
@@ -0,0 +1,194 @@
|
||||
|
||||
/*
|
||||
* raspberrypi.h
|
||||
*
|
||||
* Copyright (c) 2013 Alan Cudmore.
|
||||
*
|
||||
* 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_RASPBERRYPI_RASPBERRYPI_H
|
||||
#define LIBBSP_ARM_RASPBERRYPI_RASPBERRYPI_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <bsp/utility.h>
|
||||
|
||||
/**
|
||||
* @defgroup raspberrypi_reg Register Definitions
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief Register definitions.
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @name Register Macros
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
#define BCM2835_REG(x) (*(volatile uint32_t *)(x))
|
||||
#define BCM2835_BIT(n) (1 << (n))
|
||||
|
||||
/** @} */
|
||||
|
||||
/**
|
||||
* @name Internal ARM Timer Registers
|
||||
*
|
||||
* @{
|
||||
*/
|
||||
|
||||
#define BCM2835_CLOCK_FREQ 250000000
|
||||
|
||||
#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_RASPBERRYPI_RASPBERRYPI_H */
|
||||
26
c/src/lib/libbsp/arm/raspberrypi/include/usart.h
Normal file
26
c/src/lib/libbsp/arm/raspberrypi/include/usart.h
Normal file
@@ -0,0 +1,26 @@
|
||||
/*
|
||||
* Copyright (c) 2013 Alan Cudmore.
|
||||
*
|
||||
* 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_RASPBERRYPI_USART_H
|
||||
#define LIBBSP_ARM_RASPBERRYPI_USART_H
|
||||
|
||||
#include <libchip/serial.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#define USART0_DEFAULT_BAUD 115000
|
||||
|
||||
extern const console_fns bcm2835_usart_fns;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* LIBBSP_ARM_RASPBERRYPI_USART_H */
|
||||
124
c/src/lib/libbsp/arm/raspberrypi/irq/irq.c
Normal file
124
c/src/lib/libbsp/arm/raspberrypi/irq/irq.c
Normal file
@@ -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@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/raspberrypi.h>
|
||||
#include <bsp/linker-symbols.h>
|
||||
#include <bsp/mmu.h>
|
||||
|
||||
/*
|
||||
** This sets the main exception vectors
|
||||
*/
|
||||
void raspberrypi_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)
|
||||
{
|
||||
raspberrypi_set_exception_handler(ARM_EXCEPTION_IRQ, _ARMV4_Exception_interrupt);
|
||||
return RTEMS_SUCCESSFUL;
|
||||
}
|
||||
22
c/src/lib/libbsp/arm/raspberrypi/make/custom/raspberrypi.cfg
Normal file
22
c/src/lib/libbsp/arm/raspberrypi/make/custom/raspberrypi.cfg
Normal file
@@ -0,0 +1,22 @@
|
||||
#
|
||||
# Config file for RASPBERRYPI
|
||||
#
|
||||
# $Id: $
|
||||
#
|
||||
|
||||
include $(RTEMS_ROOT)/make/custom/default.cfg
|
||||
|
||||
RTEMS_CPU = arm
|
||||
|
||||
CPU_CFLAGS = -mcpu=arm1176jzf-s
|
||||
|
||||
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
|
||||
|
||||
49
c/src/lib/libbsp/arm/raspberrypi/misc/timer.c
Normal file
49
c/src/lib/libbsp/arm/raspberrypi/misc/timer.c
Normal file
@@ -0,0 +1,49 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief Benchmark timer support.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 by Alan Cudmore
|
||||
*
|
||||
* 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/raspberrypi.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;
|
||||
}
|
||||
140
c/src/lib/libbsp/arm/raspberrypi/preinstall.am
Normal file
140
c/src/lib/libbsp/arm/raspberrypi/preinstall.am
Normal file
@@ -0,0 +1,140 @@
|
||||
## 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/usart.h: include/usart.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/usart.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/usart.h
|
||||
|
||||
$(PROJECT_INCLUDE)/bsp/raspberrypi.h: include/raspberrypi.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/raspberrypi.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/raspberrypi.h
|
||||
|
||||
$(PROJECT_INCLUDE)/libcpu/cache_.h: ../../../libcpu/arm/shared/include/cache_.h $(PROJECT_INCLUDE)/libcpu/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/libcpu/cache_.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/libcpu/cache_.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
|
||||
|
||||
35
c/src/lib/libbsp/arm/raspberrypi/startup/bspreset.c
Normal file
35
c/src/lib/libbsp/arm/raspberrypi/startup/bspreset.c
Normal file
@@ -0,0 +1,35 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief Reset code.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 by Alan Cudmore
|
||||
* Based on work by:
|
||||
* Copyright (c) 2009
|
||||
* embedded brains GmbH
|
||||
* Obere Lagerstr. 30
|
||||
* D-82178 Puchheim
|
||||
* Germany
|
||||
* <rtems@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 */
|
||||
}
|
||||
}
|
||||
29
c/src/lib/libbsp/arm/raspberrypi/startup/bspstart.c
Normal file
29
c/src/lib/libbsp/arm/raspberrypi/startup/bspstart.c
Normal file
@@ -0,0 +1,29 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief Startup code.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 by Alan Cudmore
|
||||
*
|
||||
* 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/raspberrypi.h>
|
||||
|
||||
void bsp_start(void)
|
||||
{
|
||||
bsp_interrupt_initialize();
|
||||
}
|
||||
114
c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c
Normal file
114
c/src/lib/libbsp/arm/raspberrypi/startup/bspstarthooks.c
Normal file
@@ -0,0 +1,114 @@
|
||||
/**
|
||||
* @file
|
||||
*
|
||||
* @ingroup raspberrypi
|
||||
*
|
||||
* @brief Startup code.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2013 by Alan Cudmore
|
||||
* based on work by:
|
||||
* Copyright (c) 2009
|
||||
* embedded brains GmbH
|
||||
* Obere Lagerstr. 30
|
||||
* D-82178 Puchheim
|
||||
* Germany
|
||||
* <rtems@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/raspberrypi.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 raspberrypi_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)
|
||||
{
|
||||
raspberrypi_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();
|
||||
|
||||
}
|
||||
62
c/src/lib/libbsp/arm/raspberrypi/startup/linkcmds
Normal file
62
c/src/lib/libbsp/arm/raspberrypi/startup/linkcmds
Normal file
@@ -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
|
||||
Reference in New Issue
Block a user