[PATCH 4/4] bsp: Add new riscv_generic bsp v1
Hesham Almatary
heshamelmatary at gmail.com
Mon Oct 23 00:57:20 UTC 2017
From: Hesham Almatary <hesham at alumni.york.ac.uk>
* Only runs/tested on simulator/spike.
* Ticker, hello, capture work proprely
---
c/src/lib/libbsp/riscv32/Makefile.am | 14 +
c/src/lib/libbsp/riscv32/acinclude.m4 | 10 +
c/src/lib/libbsp/riscv32/configure.ac | 19 ++
c/src/lib/libbsp/riscv32/riscv_generic/Makefile.am | 93 +++++
c/src/lib/libbsp/riscv32/riscv_generic/bsp_specs | 13 +
.../libbsp/riscv32/riscv_generic/clock/clockdrv.c | 119 +++++++
.../lib/libbsp/riscv32/riscv_generic/configure.ac | 36 ++
.../riscv32/riscv_generic/console/console-io.c | 178 ++++++++++
.../lib/libbsp/riscv32/riscv_generic/include/bsp.h | 51 +++
.../libbsp/riscv32/riscv_generic/include/bspopts.h | 68 ++++
.../lib/libbsp/riscv32/riscv_generic/include/irq.h | 49 +++
.../libbsp/riscv32/riscv_generic/include/tm27.h | 53 +++
c/src/lib/libbsp/riscv32/riscv_generic/irq/irq.c | 65 ++++
.../riscv_generic/make/custom/riscv_generic.cfg | 7 +
.../lib/libbsp/riscv32/riscv_generic/start/start.S | 122 +++++++
.../riscv32/riscv_generic/startup/bsp_fatal_halt.c | 18 +
.../libbsp/riscv32/riscv_generic/startup/linkcmds | 378 +++++++++++++++++++++
.../lib/libbsp/riscv32/riscv_generic/timer/timer.c | 70 ++++
.../libbsp/riscv32/shared/include/linker-symbols.h | 81 +++++
19 files changed, 1444 insertions(+)
create mode 100644 c/src/lib/libbsp/riscv32/Makefile.am
create mode 100644 c/src/lib/libbsp/riscv32/acinclude.m4
create mode 100644 c/src/lib/libbsp/riscv32/configure.ac
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/Makefile.am
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/bsp_specs
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/clock/clockdrv.c
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/configure.ac
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/console/console-io.c
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/include/bsp.h
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/include/bspopts.h
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/include/irq.h
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/include/tm27.h
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/irq/irq.c
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/make/custom/riscv_generic.cfg
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/start/start.S
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/startup/bsp_fatal_halt.c
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/startup/linkcmds
create mode 100644 c/src/lib/libbsp/riscv32/riscv_generic/timer/timer.c
create mode 100644 c/src/lib/libbsp/riscv32/shared/include/linker-symbols.h
diff --git a/c/src/lib/libbsp/riscv32/Makefile.am b/c/src/lib/libbsp/riscv32/Makefile.am
new file mode 100644
index 0000000..9c319b6
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/Makefile.am
@@ -0,0 +1,14 @@
+ACLOCAL_AMFLAGS = -I ../../../aclocal
+## Descend into the @RTEMS_BSP_FAMILY@ directory
+## Currently, the shared directory is not explicitly
+## added but it is present in the source tree.
+
+
+_SUBDIRS = @RTEMS_BSP_FAMILY@
+
+include_bspdir = $(includedir)/bsp
+include_bsp_HEADERS = shared/include/linker-symbols.h
+
+include $(srcdir)/preinstall.am
+include $(top_srcdir)/../../../automake/subdirs.am
+include $(top_srcdir)/../../../automake/local.am
diff --git a/c/src/lib/libbsp/riscv32/acinclude.m4 b/c/src/lib/libbsp/riscv32/acinclude.m4
new file mode 100644
index 0000000..2358993
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/acinclude.m4
@@ -0,0 +1,10 @@
+# RTEMS_CHECK_BSPDIR(RTEMS_BSP_FAMILY)
+AC_DEFUN([RTEMS_CHECK_BSPDIR],
+[
+ case "$1" in
+ riscv_generic )
+ AC_CONFIG_SUBDIRS([riscv_generic]);;
+ *)
+ AC_MSG_ERROR([Invalid BSP]);;
+ esac
+])
diff --git a/c/src/lib/libbsp/riscv32/configure.ac b/c/src/lib/libbsp/riscv32/configure.ac
new file mode 100644
index 0000000..116fa2f
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/configure.ac
@@ -0,0 +1,19 @@
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ([2.69])
+AC_INIT([rtems-c-src-lib-libbsp-riscv32],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
+AC_CONFIG_SRCDIR([../riscv32])
+RTEMS_TOP(../../../../..)
+
+RTEMS_CANONICAL_TARGET_CPU
+AM_INIT_AUTOMAKE([no-define foreign subdir-objects 1.12.2])
+AM_MAINTAINER_MODE
+
+RTEMS_ENV_RTEMSBSP
+RTEMS_PROJECT_ROOT
+
+RTEMS_CHECK_BSPDIR([$RTEMS_BSP_FAMILY])
+
+# Explicitly list all Makefiles here
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/Makefile.am b/c/src/lib/libbsp/riscv32/riscv_generic/Makefile.am
new file mode 100644
index 0000000..83257ac
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/Makefile.am
@@ -0,0 +1,93 @@
+##
+#
+# @brief Makefile of LibBSP for the RISCV/Spike simulator.
+#
+#
+ACLOCAL_AMFLAGS = -I ../../../../aclocal
+
+include $(top_srcdir)/../../../../automake/compile.am
+
+include_bspdir = $(includedir)/bsp
+include_libcpudir = $(includedir)/libcpu
+
+dist_project_lib_DATA = bsp_specs
+
+###############################################################################
+# Header #
+###############################################################################
+
+include_HEADERS = include/bsp.h
+include_HEADERS += ../../shared/include/tm27.h
+include_HEADERS += ../../shared/include/coverhd.h
+
+nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
+include_bsp_HEADERS = ../shared/include/linker-symbols.h
+
+include_bsp_HEADERS += ../../../libbsp/shared/include/mm.h
+include_bsp_HEADERS += ../../shared/include/utility.h
+include_bsp_HEADERS += ../../shared/include/irq-generic.h
+include_bsp_HEADERS += ../../shared/include/irq-info.h
+include_bsp_HEADERS += ../../shared/include/stackalloc.h
+include_bsp_HEADERS += ../../shared/include/console-polled.h
+include_bsp_HEADERS += include/irq.h
+
+nodist_include_HEADERS = include/bspopts.h
+
+###############################################################################
+# Data #
+###############################################################################
+noinst_LIBRARIES = libbspstart.a
+
+libbspstart_a_SOURCES = start/start.S
+
+project_lib_DATA = start.$(OBJEXT)
+
+project_lib_DATA += startup/linkcmds
+
+###############################################################################
+# LibBSP #
+###############################################################################
+
+noinst_LIBRARIES += libbsp.a
+
+# Startup
+libbsp_a_SOURCES = ../../shared/bspreset.c
+libbsp_a_SOURCES += ../../shared/bspstart.c
+libbsp_a_SOURCES += startup/bsp_fatal_halt.c
+
+# Shared
+libbsp_a_SOURCES += ../../shared/bootcard.c
+libbsp_a_SOURCES += ../../shared/bspclean.c
+libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
+libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
+libbsp_a_SOURCES += ../../shared/sbrk.c
+libbsp_a_SOURCES += ../../shared/src/stackalloc.c
+libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
+
+# clock
+libbsp_a_SOURCES += clock/clockdrv.c ../../../shared/clockdrv_shell.h
+
+# Timer
+libbsp_a_SOURCES += timer/timer.c
+
+# console
+libbsp_a_SOURCES += ../../shared/console-polled.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 += irq/irq.c
+
+# Cache
+libbsp_a_SOURCES += ../../../libcpu/shared/src/cache_manager.c
+libbsp_a_SOURCES += ../../shared/include/cache_.h
+libbsp_a_CPPFLAGS = -I$(srcdir)/../../shared/include
+
+# debugio
+libbsp_a_SOURCES += console/console-io.c
+
+DISTCLEANFILES = include/bspopts.h
+
+include $(srcdir)/preinstall.am
+include $(top_srcdir)/../../../../automake/local.am
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/bsp_specs b/c/src/lib/libbsp/riscv32/riscv_generic/bsp_specs
new file mode 100644
index 0000000..32c105f
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/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/riscv32/riscv_generic/clock/clockdrv.c b/c/src/lib/libbsp/riscv32/riscv_generic/clock/clockdrv.c
new file mode 100644
index 0000000..ba137db
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/clock/clockdrv.c
@@ -0,0 +1,119 @@
+/**
+ * @file
+ *
+ * @ingroup bsp_clock
+ *
+ * @brief riscv clock support.
+ */
+
+/*
+ * riscv_generic Clock driver
+ *
+ * COPYRIGHT (c) 2015 Hesham Alatary <hesham at alumni.york.ac.uk>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <rtems/score/riscv-utility.h>
+#include <rtems/score/cpu.h>
+#include <rtems/timecounter.h>
+
+/* The number of clock cycles before generating a tick timer interrupt. */
+#define TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT 1000
+#define RISCV_CLOCK_CYCLE_TIME_NANOSECONDS 1
+
+#define MTIME_MM 0x000000000200bff8
+#define MTIMECMP_MM 0x0000000002004000
+
+#define REG(x) *((volatile uint32_t *) x)
+
+static struct timecounter riscv_generic_tc;
+
+/* CPU counter */
+static CPU_Counter_ticks cpu_counter_ticks;
+
+/* This prototype is added here to Avoid warnings */
+void Clock_isr(void *arg);
+
+static void riscv_generic_clock_at_tick(void)
+{
+ REG(MTIME_MM) = 0;
+ REG(MTIMECMP_MM) = TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT;
+
+ cpu_counter_ticks += TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT * 10000;
+}
+
+static void riscv_generic_clock_handler_install(proc_ptr new_isr)
+{
+ rtems_status_code sc = RTEMS_SUCCESSFUL;
+ _CPU_ISR_install_vector(RISCV_MACHINE_TIMER_INTERRUPT,
+ new_isr,
+ NULL);
+
+ if (sc != RTEMS_SUCCESSFUL) {
+ rtems_fatal_error_occurred(0xdeadbeef);
+ }
+}
+
+static uint32_t riscv_generic_get_timecount(struct timecounter *tc)
+{
+ uint32_t ticks_since_last_timer_interrupt = REG(MTIME_MM);
+
+ return cpu_counter_ticks + ticks_since_last_timer_interrupt;
+}
+
+CPU_Counter_ticks _CPU_Counter_read(void)
+{
+ return riscv_generic_get_timecount(NULL);
+}
+
+static void riscv_generic_clock_initialize(void)
+{
+ uint32_t mtimecmp = TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT;
+ uint64_t frequency = (1000000000 / RISCV_CLOCK_CYCLE_TIME_NANOSECONDS);
+
+ REG(MTIME_MM) = 0;
+ REG(MTIMECMP_MM) = TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT;
+
+ /* Enable mtimer interrupts */
+ set_csr(mie, MIP_MTIP);
+ set_csr(mip, MIP_MTIP);
+
+ /* Initialize timecounter */
+ riscv_generic_tc.tc_get_timecount = riscv_generic_get_timecount;
+ riscv_generic_tc.tc_counter_mask = 0xffffffff;
+ riscv_generic_tc.tc_frequency = frequency;
+ riscv_generic_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER;
+ rtems_timecounter_install(&riscv_generic_tc);
+}
+
+static void riscv_generic_clock_cleanup(void)
+{
+ /* Disable mtimer interrupts */
+ clear_csr(mie, MIP_MTIP);
+ clear_csr(mip, MIP_MTIP);
+}
+
+CPU_Counter_ticks _CPU_Counter_difference(
+ CPU_Counter_ticks second,
+ CPU_Counter_ticks first
+)
+{
+ return second - first;
+}
+
+#define Clock_driver_support_at_tick() riscv_generic_clock_at_tick()
+
+#define Clock_driver_support_initialize_hardware() riscv_generic_clock_initialize()
+
+#define Clock_driver_support_install_isr(isr) \
+ riscv_generic_clock_handler_install(isr)
+
+#define Clock_driver_support_shutdown_hardware() riscv_generic_clock_cleanup()
+
+#include "../../../shared/clockdrv_shell.h"
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/configure.ac b/c/src/lib/libbsp/riscv32/riscv_generic/configure.ac
new file mode 100644
index 0000000..92c1b96
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/configure.ac
@@ -0,0 +1,36 @@
+##
+#
+# @file
+#
+# @brief Configure script of LibBSP for riscv_generic BSP.
+#
+
+AC_PREREQ([2.69])
+AC_INIT([rtems-c-src-lib-libbsp-riscv_generic],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
+AC_CONFIG_SRCDIR([bsp_specs])
+RTEMS_TOP(../../../../../..)
+
+RTEMS_CANONICAL_TARGET_CPU
+AM_INIT_AUTOMAKE([no-define nostdinc foreign 1.12.2])
+RTEMS_BSP_CONFIGURE
+
+RTEMS_BSPOPTS_SET([BSP_START_RESET_VECTOR],[*],[])
+RTEMS_BSPOPTS_HELP([BSP_START_RESET_VECTOR],[reset vector address for BSP
+start])
+
+RTEMS_BSPOPTS_SET([BSP_RISCV32_PERIPHCLK],[*],[100000000U])
+RTEMS_BSPOPTS_HELP([BSP_RISCV32_PERIPHCLK],[riscv PERIPHCLK clock
+frequency in Hz])
+
+RTEMS_PROG_CC_FOR_TARGET([-ansi -fasm])
+RTEMS_CANONICALIZE_TOOLS
+RTEMS_PROG_CCAS
+
+RTEMS_CHECK_SMP
+AM_CONDITIONAL(HAS_SMP,[test "$rtems_cv_HAS_SMP" = "yes"])
+
+RTEMS_BSP_CLEANUP_OPTIONS(0, 1)
+RTEMS_BSP_LINKCMDS
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/console/console-io.c b/c/src/lib/libbsp/riscv32/riscv_generic/console/console-io.c
new file mode 100644
index 0000000..8e03b99
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/console/console-io.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * Copyright (c) 2013, The Regents of the University of California (Regents).
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <bsp.h>
+#include <bsp/console-polled.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdio.h>
+
+/* Most of the code below is copied from riscv-pk project */
+# define TOHOST_CMD(dev, cmd, payload) \
+ (((uint64_t)(dev) << 56) | ((uint64_t)(cmd) << 48) | (uint64_t)(payload))
+
+#define FROMHOST_DEV(fromhost_value) ((uint64_t)(fromhost_value) >> 56)
+#define FROMHOST_CMD(fromhost_value) ((uint64_t)(fromhost_value) << 8 >> 56)
+#define FROMHOST_DATA(fromhost_value) ((uint64_t)(fromhost_value) << 16 >> 16)
+
+volatile uint64_t tohost __attribute__((section(".htif")));
+volatile uint64_t fromhost __attribute__((section(".htif")));
+volatile int htif_console_buf;
+
+static void __check_fromhost()
+{
+ uint64_t fh = fromhost;
+ if (!fh) {
+ return;
+ }
+ fromhost = 0;
+
+ // this should be from the console
+ assert(FROMHOST_DEV(fh) == 1);
+ switch (FROMHOST_CMD(fh)) {
+ case 0:
+ htif_console_buf = 1 + (uint8_t)FROMHOST_DATA(fh);
+ break;
+ case 1:
+ break;
+ default:
+ assert(0);
+ }
+}
+
+static void __set_tohost(uintptr_t dev, uintptr_t cmd, uintptr_t data)
+{
+ while (tohost) {
+ __check_fromhost();
+ }
+ tohost = TOHOST_CMD(dev, cmd, data);
+}
+
+int htif_console_getchar()
+{
+ __check_fromhost();
+ int ch = htif_console_buf;
+ if (ch >= 0) {
+ htif_console_buf = -1;
+ __set_tohost(1, 0, 0);
+ }
+
+ return ch - 1;
+}
+
+static void do_tohost_fromhost(uintptr_t dev, uintptr_t cmd, uintptr_t data)
+{
+ __set_tohost(dev, cmd, data);
+
+ while (1) {
+ uint64_t fh = fromhost;
+ if (fh) {
+ if (FROMHOST_DEV(fh) == dev && FROMHOST_CMD(fh) == cmd) {
+ fromhost = 0;
+ break;
+ }
+ __check_fromhost();
+ }
+ }
+}
+
+void htif_console_putchar(uint8_t ch)
+{
+ __set_tohost(1, 1, ch);
+}
+
+void htif_poweroff()
+{
+ while (1) {
+ fromhost = 0;
+ tohost = 1;
+ }
+}
+
+void console_initialize_hardware(void)
+{
+ /* Do nothing */
+}
+
+static void outbyte_console(char ch)
+{
+ htif_console_putchar(ch);
+ return 0;
+}
+
+static char inbyte_console(void)
+{
+ return htif_console_getchar();
+}
+
+/*
+ * console_outbyte_polled
+ *
+ * This routine transmits a character using polling.
+ */
+void console_outbyte_polled(
+ int port,
+ char ch
+)
+{
+ outbyte_console( ch );
+}
+
+/*
+ * console_inbyte_nonblocking
+ *
+ * This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking(int port)
+{
+ char c;
+
+ c = inbyte_console();
+ if (!c) {
+ return -1;
+ }
+ return (int) c;
+}
+
+/*
+ * To support printk
+ */
+
+#include <rtems/bspIo.h>
+
+static void RISCV_output_char(char c)
+{
+ console_outbyte_polled( 0, c );
+}
+
+BSP_output_char_function_type BSP_output_char = RISCV_output_char;
+BSP_polling_getchar_function_type BSP_poll_char =
+ (void *)console_inbyte_nonblocking;
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/include/bsp.h b/c/src/lib/libbsp/riscv32/riscv_generic/include/bsp.h
new file mode 100644
index 0000000..4d84ec6
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/include/bsp.h
@@ -0,0 +1,51 @@
+/*
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * COPYRIGHT (c) 1989-1999.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef LIBBSP_RISCV_GENERIC_H
+#define LIBBSP_RISCV_GENERIC_H
+
+#include <rtems.h>
+#include <rtems/clockdrv.h>
+#include <rtems/console.h>
+
+#include <bspopts.h>
+#include <bsp/default-initial-extension.h>
+
+#include <rtems/devnull.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LIBBSP_RISCV_GENERIC_H */
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/include/bspopts.h b/c/src/lib/libbsp/riscv32/riscv_generic/include/bspopts.h
new file mode 100644
index 0000000..7858ce0
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/include/bspopts.h
@@ -0,0 +1,68 @@
+/*
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * COPYRIGHT (c) 1989-1999.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* include/bspopts.h.in. Generated from configure.ac by autoheader. */
+
+/* If defined, then the BSP Framework will put a non-zero pattern into the
+ RTEMS Workspace and C program heap. This should assist in finding code that
+ assumes memory starts set to zero. */
+#undef BSP_DIRTY_MEMORY
+
+/* If defined, print a message and wait until pressed before resetting board
+ when application exits. */
+#undef BSP_PRESS_KEY_FOR_RESET
+
+/* If defined, prints the exception context when an unexpected exception
+ occurs. */
+#undef BSP_PRINT_EXCEPTION_CONTEXT
+
+/* If defined, reset the board when the application exits. */
+#undef BSP_RESET_BOARD_AT_EXIT
+
+/* reset vector address for BSP start */
+#undef BSP_START_RESET_VECTOR
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/include/irq.h b/c/src/lib/libbsp/riscv32/riscv_generic/include/irq.h
new file mode 100644
index 0000000..d7ee45b
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/include/irq.h
@@ -0,0 +1,49 @@
+/**
+ * @file
+ *
+ * @ingroup RISCV_IRQ
+ *
+ * @brief Interrupt definitions.
+ */
+
+/*
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef LIBBSP_GENERIC_RISCV_IRQ_H
+#define LIBBSP_GENERIC_RISCV_IRQ_H
+
+#ifndef ASM
+
+#include <rtems.h>
+#include <rtems/irq.h>
+#include <rtems/irq-extension.h>
+
+#define BSP_INTERRUPT_VECTOR_MIN 0x0
+#define BSP_INTERRUPT_VECTOR_MAX 0x24
+
+#endif /* ASM */
+#endif /* LIBBSP_GENERIC_RISCV_IRQ_H */
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/include/tm27.h b/c/src/lib/libbsp/riscv32/riscv_generic/include/tm27.h
new file mode 100644
index 0000000..392f106
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/include/tm27.h
@@ -0,0 +1,53 @@
+/*
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * COPYRIGHT (c) 1989-1999.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _RTEMS_TMTEST27
+#error "This is an RTEMS internal file you must not include directly."
+#endif
+
+#ifndef __tm27_h
+#define __tm27_h
+
+/**
+ * @name Interrupt mechanisms for Time Test 27
+ * @{
+ */
+
+#define MUST_WAIT_FOR_INTERRUPT 0
+
+#define Install_tm27_vector( handler ) /* empty */
+
+#define Cause_tm27_intr() /* empty */
+
+#define Clear_tm27_intr() /* empty */
+
+#define Lower_tm27_intr() /* empty */
+
+#endif
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/irq/irq.c b/c/src/lib/libbsp/riscv32/riscv_generic/irq/irq.c
new file mode 100644
index 0000000..af6e08e
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/irq/irq.c
@@ -0,0 +1,65 @@
+/**
+ * @file
+ *
+ * @ingroup riscv_interrupt
+ *
+ * @brief Interrupt support.
+ */
+
+/*
+ * RISCV CPU Dependent Source
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <bsp/irq.h>
+#include <bsp/irq-generic.h>
+
+/* Almost all of the jobs that the following functions should
+ * do are implemented in cpukit
+ */
+
+void bsp_interrupt_handler_default(rtems_vector_number vector)
+{
+ printk("spurious interrupt: %u\n", vector);
+}
+
+rtems_status_code bsp_interrupt_facility_initialize()
+{
+ /* TODO */
+ return 0;
+}
+
+void bsp_interrupt_vector_enable(rtems_vector_number vector)
+{
+ /* TODO */
+ return 0;
+}
+
+void bsp_interrupt_vector_disable(rtems_vector_number vector)
+{
+ /* TODO */
+ return 0;
+}
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/make/custom/riscv_generic.cfg b/c/src/lib/libbsp/riscv32/riscv_generic/make/custom/riscv_generic.cfg
new file mode 100644
index 0000000..a7f46c7
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/make/custom/riscv_generic.cfg
@@ -0,0 +1,7 @@
+include $(RTEMS_ROOT)/make/custom/default.cfg
+
+RTEMS_CPU = riscv32
+
+CPU_CFLAGS =
+
+CFLAGS_OPTIMIZE_V ?= -O0 -g
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/start/start.S b/c/src/lib/libbsp/riscv32/riscv_generic/start/start.S
new file mode 100644
index 0000000..692afe5
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/start/start.S
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * Copyright (c) 2013, The Regents of the University of California (Regents).
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <bsp/linker-symbols.h>
+#include <rtems/score/riscv-utility.h>
+#include <rtems/asm.h>
+
+# define LREG lw
+# define SREG sw
+
+EXTERN(bsp_section_bss_begin)
+EXTERN(bsp_section_bss_end)
+EXTERN(ISR_Handler)
+EXTERN(bsp_start_vector_table_size)
+EXTERN(bsp_vector_table_size)
+EXTERN(bsp_section_stack_begin)
+
+PUBLIC(bsp_start_vector_table_begin)
+PUBLIC(bsp_start_vector_table_end)
+PUBLIC(_start)
+
+.section .start, "wax"
+TYPE_FUNC(_start)
+SYM(_start):
+ li x2, 0
+ li x3, 0
+ li x4, 0
+ li x5, 0
+ li x6, 0
+ li x7, 0
+ li x8, 0
+ li x9, 0
+ li x10, 0
+ li x11, 0
+ li x12, 0
+ li x13, 0
+ li x14, 0
+ li x15, 0
+ li x16, 0
+ li x17, 0
+ li x18, 0
+ li x19, 0
+ li x20, 0
+ li x21, 0
+ li x22, 0
+ li x23, 0
+ li x24, 0
+ li x25, 0
+ li x26, 0
+ li x27, 0
+ li x28, 0
+ li x29, 0
+ li x30, 0
+ li x31, 0
+
+ la t0, ISR_Handler
+ csrw mtvec, t0
+
+ /* load stack and frame pointers */
+ la sp, bsp_section_stack_begin
+
+ /* Clearing .bss */
+ la t0, bsp_section_bss_begin
+ la t1, bsp_section_bss_end
+
+_loop_clear_bss:
+ bge t0, t1, _end_clear_bss
+ sw x0, 0(t0)
+ addi t0, t0, 4
+ j _loop_clear_bss
+_end_clear_bss:
+
+ /* Init FPU unit if it's there */
+ li t0, MSTATUS_FS
+ csrs mstatus, t0
+
+ j boot_card
+
+ .align 2
+bsp_start_vector_table_begin:
+ .word _RISCV_Exception_default /* User int */
+ .word _RISCV_Exception_default /* Supervisor int */
+ .word _RISCV_Exception_default /* Reserved */
+ .word _RISCV_Exception_default /* Machine int */
+ .word _RISCV_Exception_default /* User timer int */
+ .word _RISCV_Exception_default /* Supervisor Timer int */
+ .word _RISCV_Exception_default /* Reserved */
+ .word _RISCV_Exception_default /* Machine Timer int */
+ .word _RISCV_Exception_default /* User external int */
+ .word _RISCV_Exception_default /* Supervisor external int */
+ .word _RISCV_Exception_default /* Reserved */
+ .word _RISCV_Exception_default /* Machine external int */
+ .word _RISCV_Exception_default
+ .word _RISCV_Exception_default
+ .word _RISCV_Exception_default
+ .word _RISCV_Exception_default
+bsp_start_vector_table_end:
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/startup/bsp_fatal_halt.c b/c/src/lib/libbsp/riscv32/riscv_generic/startup/bsp_fatal_halt.c
new file mode 100644
index 0000000..e918c13
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/startup/bsp_fatal_halt.c
@@ -0,0 +1,18 @@
+/* @ingroup riscv_generic
+ * @brief riscv_generic BSP Fatal_halt handler.
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+
+/* Send a power-off signal to the host */
+void _CPU_Fatal_halt(uint32_t source, uint32_t error)
+{
+ htif_poweroff();
+}
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/startup/linkcmds b/c/src/lib/libbsp/riscv32/riscv_generic/startup/linkcmds
new file mode 100644
index 0000000..0ed37ad
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/startup/linkcmds
@@ -0,0 +1,378 @@
+/**
+ * @file
+ *
+ * @ingroup bsp_linker
+ *
+ * @brief Memory map
+ */
+
+/*
+ *
+ * Copyright (c) 2015 University of York.
+ * Hesham ALMatary <hmka501 at york.ac.uk>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+OUTPUT_FORMAT("elf32-littleriscv", "elf32-littleriscv", "elf32-littleriscv")
+OUTPUT_ARCH (riscv)
+
+ENTRY (_start)
+
+MEMORY
+{
+ RAM : ORIGIN = 0x0000000080000000, LENGTH = 0x10000000
+}
+
+REGION_ALIAS ("REGION_VECTOR", RAM);
+REGION_ALIAS ("REGION_START", 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_HTIF", RAM);
+REGION_ALIAS ("REGION_HTIF_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);
+
+/*
+ * Global symbols that may be defined externally
+ */
+bsp_vector_table_size = DEFINED (bsp_vector_table_size) ? bsp_vector_table_size : 64;
+
+bsp_section_xbarrier_align = DEFINED (bsp_section_xbarrier_align) ? bsp_section_xbarrier_align : 1;
+bsp_section_robarrier_align = DEFINED (bsp_section_robarrier_align) ? bsp_section_robarrier_align : 1;
+bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ? bsp_section_rwbarrier_align : 1;
+
+bsp_stack_align = DEFINED (bsp_stack_align) ? bsp_stack_align : 8;
+
+bsp_stack_main_size = DEFINED (bsp_stack_main_size) ? bsp_stack_main_size : 1024;
+bsp_stack_main_size = ALIGN (bsp_stack_main_size, bsp_stack_align);
+
+_bsp_processor_count = DEFINED (_bsp_processor_count) ? _bsp_processor_count : 1;
+
+SECTIONS {
+
+ .vector :
+ {
+ . = ALIGN(8);
+ bsp_section_vector_begin = .;
+ *(.vector)
+ . = ALIGN(bsp_vector_table_size);
+ bsp_section_vector_end = .;
+ } > REGION_VECTOR AT > REGION_VECTOR
+ bsp_section_vector_size = bsp_section_vector_end - bsp_section_vector_begin;
+ bsp_vector_table_begin = bsp_section_vector_begin;
+ bsp_vector_table_end = bsp_vector_table_begin + bsp_vector_table_size;
+
+ .start :
+ {
+ . = ALIGN(8);
+ bsp_section_start_begin = .;
+ KEEP (*(.bsp_start_text))
+ KEEP (*(.bsp_start_data))
+ bsp_section_start_end = .;
+ } > REGION_START AT > REGION_START
+ bsp_section_start_size = bsp_section_start_end - bsp_section_start_begin;
+
+.xbarrier : {
+ . = ALIGN (bsp_section_xbarrier_align);
+ } > REGION_VECTOR AT > REGION_VECTOR
+
+.text : {
+ . = ALIGN(8);
+ bsp_section_text_begin = .;
+ *(.text.unlikely .text.*_unlikely)
+ *(.text .stub .text.* .gnu.linkonce.t.*)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ *(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
+ } > REGION_TEXT AT > REGION_TEXT_LOAD
+ .init : {
+ KEEP (*(.init))
+ } > REGION_TEXT AT > REGION_TEXT_LOAD
+ .fini : {
+ KEEP (*(.fini))
+ . = ALIGN(8);
+ bsp_section_text_end = .;
+ } > REGION_TEXT AT > REGION_TEXT_LOAD
+ bsp_section_text_size = bsp_section_text_end - bsp_section_text_begin;
+ bsp_section_text_load_begin = LOADADDR (.text);
+ bsp_section_text_load_end = bsp_section_text_load_begin + bsp_section_text_size;
+
+.robarrier : {
+ . = ALIGN (bsp_section_robarrier_align);
+ } > REGION_RODATA AT > REGION_RODATA
+
+.rodata : {
+ . = ALIGN(8);
+ bsp_section_rodata_begin = .;
+ *(.rodata .rodata.* .gnu.linkonce.r.*)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+.eh_frame : {
+ KEEP (*(.eh_frame))
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .gcc_except_table : {
+ *(.gcc_except_table .gcc_except_table.*)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .tdata : {
+ _TLS_Data_begin = .;
+ *(.tdata .tdata.* .gnu.linkonce.td.*)
+ _TLS_Data_end = .;
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .tbss : {
+ _TLS_BSS_begin = .;
+ *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
+ _TLS_BSS_end = .;
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ _TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
+ _TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
+ _TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
+ _TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
+ _TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
+ _TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
+ .preinit_array : {
+ PROVIDE_HIDDEN (__preinit_array_start = .);
+ KEEP (*(.preinit_array))
+ PROVIDE_HIDDEN (__preinit_array_end = .);
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .init_array : {
+ PROVIDE_HIDDEN (__init_array_start = .);
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array))
+ PROVIDE_HIDDEN (__init_array_end = .);
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .fini_array : {
+ PROVIDE_HIDDEN (__fini_array_start = .);
+ KEEP (*(.fini_array))
+ KEEP (*(SORT(.fini_array.*)))
+ PROVIDE_HIDDEN (__fini_array_end = .);
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .ctors : {
+ /* gcc uses crtbegin.o to find the start of
+ the constructors, so we make sure it is
+ first. Because this is a wildcard, it
+ doesn't matter if the user does not
+ actually link against crtbegin.o; the
+ linker won't look for a file to match a
+ wildcard. The wildcard also means that it
+ doesn't matter which directory crtbegin.o
+ is in. */
+ KEEP (*crtbegin.o(.ctors))
+ KEEP (*crtbegin?.o(.ctors))
+ /* We don't want to include the .ctor section from
+ the crtend.o file until after the sorted ctors.
+ The .ctor section from the crtend file contains the
+ end of ctors marker and it must be last */
+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .dtors : {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*crtbegin?.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .data.rel.ro : {
+ *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*)
+ *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .jcr : {
+ KEEP (*(.jcr))
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .interp : {
+ *(.interp)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .note.gnu.build-id : {
+ *(.note.gnu.build-id)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .hash : {
+ *(.hash)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .gnu.hash : {
+ *(.gnu.hash)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .dynsym : {
+ *(.dynsym)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .dynstr : {
+ *(.dynstr)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .gnu.version : {
+ *(.gnu.version)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .gnu.version_d : {
+ *(.gnu.version_d)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .gnu.version_r : {
+ *(.gnu.version_r)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .rel.dyn : {
+ *(.rel.init)
+ *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
+ *(.rel.fini)
+ *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
+ *(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
+ *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
+ *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
+ *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
+ *(.rel.ctors)
+ *(.rel.dtors)
+ *(.rel.got)
+ *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
+ PROVIDE_HIDDEN (__rel_iplt_start = .);
+ *(.rel.iplt)
+ PROVIDE_HIDDEN (__rel_iplt_end = .);
+ PROVIDE_HIDDEN (__rela_iplt_start = .);
+ PROVIDE_HIDDEN (__rela_iplt_end = .);
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .rela.dyn : {
+ *(.rela.init)
+ *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
+ *(.rela.fini)
+ *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
+ *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
+ *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
+ *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
+ *(.rela.ctors)
+ *(.rela.dtors)
+ *(.rela.got)
+ *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
+ PROVIDE_HIDDEN (__rel_iplt_start = .);
+ PROVIDE_HIDDEN (__rel_iplt_end = .);
+ PROVIDE_HIDDEN (__rela_iplt_start = .);
+ *(.rela.iplt)
+ PROVIDE_HIDDEN (__rela_iplt_end = .);
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .rel.plt : {
+ *(.rel.plt)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .rela.plt : {
+ *(.rela.plt)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .plt : {
+ *(.plt)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .iplt : {
+ *(.iplt)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .dynamic : {
+ *(.dynamic)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .got : {
+ *(.got.plt) *(.igot.plt) *(.got) *(.igot)
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ .rtemsroset : {
+ /* Special FreeBSD linker set sections */
+ __start_set_sysctl_set = .;
+ *(set_sysctl_*);
+ __stop_set_sysctl_set = .;
+ *(set_domain_*);
+ *(set_pseudo_*);
+
+ KEEP (*(SORT(.rtemsroset.*)))
+ . = ALIGN(8);
+ bsp_section_rodata_end = .;
+ } > REGION_RODATA AT > REGION_RODATA_LOAD
+ bsp_section_rodata_size = bsp_section_rodata_end - bsp_section_rodata_begin;
+ bsp_section_rodata_load_begin = LOADADDR (.rodata);
+ bsp_section_rodata_load_end = bsp_section_rodata_load_begin + bsp_section_rodata_size;
+
+ /*--------------------------------------------------------------------*/
+ /* HTIF, isolated onto separate page */
+ /*--------------------------------------------------------------------*/
+ .htif :
+ {
+ . = ALIGN(0x1000);
+ *(.htif)
+ . = ALIGN(0x1000);
+ } > REGION_HTIF AT > REGION_HTIF_LOAD
+
+
+.rwbarrier : {
+ . = ALIGN(8);
+ . = ALIGN (bsp_section_rwbarrier_align);
+ } > REGION_DATA AT > REGION_DATA
+
+.data : {
+ . = ALIGN(8);
+ bsp_section_data_begin = .;
+ *(.data .data.* .gnu.linkonce.d.*)
+ SORT(CONSTRUCTORS)
+ } > REGION_DATA AT > REGION_DATA_LOAD
+ .data1 : {
+ *(.data1)
+ } > REGION_DATA AT > REGION_DATA_LOAD
+ .rtemsrwset : {
+ KEEP (*(SORT(.rtemsrwset.*)))
+ . = ALIGN(8);
+ bsp_section_data_end = .;
+ } > REGION_DATA AT > REGION_DATA_LOAD
+ bsp_section_data_size = bsp_section_data_end - bsp_section_data_begin;
+ bsp_section_data_load_begin = LOADADDR (.data);
+ bsp_section_data_load_end = bsp_section_data_load_begin + bsp_section_data_size;
+
+ .bss : {
+ . = ALIGN(8);
+ bsp_section_bss_begin = .;
+ *(.dynbss)
+ *(.bss .bss.* .gnu.linkonce.b.*)
+ *(COMMON)
+ . = ALIGN(8);
+ bsp_section_bss_end = .;
+ } > REGION_BSS AT > REGION_BSS
+ bsp_section_bss_size = bsp_section_bss_end - bsp_section_bss_begin;
+
+.work : {
+ /*
+ * The work section will occupy the remaining REGION_WORK region and
+ * contains the RTEMS work space and heap.
+ */
+ . = ALIGN(8);
+ bsp_section_work_begin = .;
+ . += ORIGIN (REGION_WORK) + LENGTH (REGION_WORK) - ABSOLUTE (.);
+ . = ALIGN(8);
+ bsp_section_work_end = .;
+ } > REGION_WORK AT > REGION_WORK
+ bsp_section_work_size = bsp_section_work_end - bsp_section_work_begin;
+
+ .stack : {
+ . = ALIGN(8);
+ bsp_section_stack_begin = .;
+ . += ORIGIN (REGION_STACK) + LENGTH (REGION_STACK) - ABSOLUTE (.);
+ . = ALIGN(8);
+ bsp_section_stack_end = .;
+ } > REGION_STACK AT > REGION_STACK
+ bsp_section_stack_size = bsp_section_stack_begin - bsp_section_stack_end;
+
+ RamBase = ORIGIN (REGION_WORK);
+ RamSize = LENGTH (REGION_WORK);
+ WorkAreaBase = bsp_section_work_begin;
+ HeapSize = 0;
+}
diff --git a/c/src/lib/libbsp/riscv32/riscv_generic/timer/timer.c b/c/src/lib/libbsp/riscv32/riscv_generic/timer/timer.c
new file mode 100644
index 0000000..4dd3193
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/riscv_generic/timer/timer.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2015 University of York.
+ * Hesham Almatary <hesham at alumni.york.ac.uk>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+#include <rtems/btimer.h>
+#include <rtems/score/riscv-utility.h>
+
+extern char bsp_start_vector_table_begin[];
+
+bool benchmark_timer_find_average_overhead;
+
+static void benchmark_timer1_interrupt_handler(void)
+{
+}
+
+/* Start eCore tiemr 1 usef for profiling and timing analysis */
+void benchmark_timer_initialize( void )
+{
+ /* Install interrupt handler for timer 1 */
+}
+
+/*
+ * The following controls the behavior of benchmark_timer_read().
+ *
+ * AVG_OVEREHAD is the overhead for starting and stopping the timer. It
+ * is usually deducted from the number returned.
+ *
+ * LEAST_VALID is the lowest number this routine should trust. Numbers
+ * below this are "noise" and zero is returned.
+ */
+
+#define AVG_OVERHEAD 0 /* It typically takes X.X microseconds */
+/* (Y countdowns) to start/stop the timer. */
+/* This value is in microseconds. */
+#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */
+
+benchmark_timer_t benchmark_timer_read( void )
+{
+}
+
+void benchmark_timer_disable_subtracting_average_overhead(
+ bool find_flag
+)
+{
+ benchmark_timer_find_average_overhead = find_flag;
+}
diff --git a/c/src/lib/libbsp/riscv32/shared/include/linker-symbols.h b/c/src/lib/libbsp/riscv32/shared/include/linker-symbols.h
new file mode 100644
index 0000000..a4b03f5
--- /dev/null
+++ b/c/src/lib/libbsp/riscv32/shared/include/linker-symbols.h
@@ -0,0 +1,81 @@
+#ifndef LIBBSP_RISCV_SHARED_LINKER_SYMBOLS_H
+#define LIBBSP_RISCV_SHARED_LINKER_SYMBOLS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @defgroup riscv_linker Linker Support
+ *
+ * @ingroup riscv_shared
+ *
+ * @brief Linker support.
+ *
+ * @{
+ */
+
+#ifndef ASM
+#define LINKER_SYMBOL(sym) extern char sym [];
+#else
+#define LINKER_SYMBOL(sym) .extern sym
+#endif
+
+LINKER_SYMBOL(bsp_section_start_begin)
+LINKER_SYMBOL(bsp_section_start_end)
+LINKER_SYMBOL(bsp_section_start_size)
+
+LINKER_SYMBOL(bsp_section_vector_begin)
+LINKER_SYMBOL(bsp_section_vector_end)
+LINKER_SYMBOL(bsp_section_vector_size)
+
+LINKER_SYMBOL(bsp_section_text_begin)
+LINKER_SYMBOL(bsp_section_text_end)
+LINKER_SYMBOL(bsp_section_text_size)
+LINKER_SYMBOL(bsp_section_text_load_begin)
+LINKER_SYMBOL(bsp_section_text_load_end)
+
+LINKER_SYMBOL(bsp_section_rodata_begin)
+LINKER_SYMBOL(bsp_section_rodata_end)
+LINKER_SYMBOL(bsp_section_rodata_size)
+LINKER_SYMBOL(bsp_section_rodata_load_begin)
+LINKER_SYMBOL(bsp_section_rodata_load_end)
+
+LINKER_SYMBOL(bsp_section_data_begin)
+LINKER_SYMBOL(bsp_section_data_end)
+LINKER_SYMBOL(bsp_section_data_size)
+LINKER_SYMBOL(bsp_section_data_load_begin)
+LINKER_SYMBOL(bsp_section_data_load_end)
+
+LINKER_SYMBOL(bsp_section_bss_begin)
+LINKER_SYMBOL(bsp_section_bss_end)
+LINKER_SYMBOL(bsp_section_bss_size)
+
+LINKER_SYMBOL(bsp_section_work_begin)
+LINKER_SYMBOL(bsp_section_work_end)
+LINKER_SYMBOL(bsp_section_work_size)
+
+LINKER_SYMBOL(bsp_section_stack_begin)
+LINKER_SYMBOL(bsp_section_stack_end)
+LINKER_SYMBOL(bsp_section_stack_size)
+
+LINKER_SYMBOL(bsp_vector_table_begin)
+LINKER_SYMBOL(bsp_vector_table_end)
+LINKER_SYMBOL(bsp_vector_table_size)
+
+LINKER_SYMBOL(bsp_start_vector_table_begin)
+LINKER_SYMBOL(bsp_start_vector_table_end)
+LINKER_SYMBOL(bsp_start_vector_table_size)
+
+LINKER_SYMBOL(bsp_translation_table_base)
+LINKER_SYMBOL(bsp_translation_table_end)
+
+LINKER_SYMBOL(_bsp_processor_count)
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* LIBBSP_RISCV_SHARED_LINKER_SYMBOLS_H */
--
2.7.4
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