RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

Add new (first) OpenRISC BSP called or1ksim.

Browse Source 
This BSP is intended to run on or1ksim (the main OpenRISC emulator).
Fixed version according to Joel comments from the mailing list.
This commit is contained in:
Hesham ALMatary
2014-08-20 12:23:20 -05:00
committed by Joel Sherrill
parent 4407ee675c
commit fd5701587f
24 changed files with 1610 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
c/src/aclocal/rtems-cpu-subdirs.m4
View File

@@ -23,6 +23,7 @@ _RTEMS_CPU_SUBDIR([mips],[$1]);;
_RTEMS_CPU_SUBDIR([moxie],[$1]);; _RTEMS_CPU_SUBDIR([moxie],[$1]);;
_RTEMS_CPU_SUBDIR([nios2],[$1]);; _RTEMS_CPU_SUBDIR([nios2],[$1]);;
_RTEMS_CPU_SUBDIR([no_cpu],[$1]);; _RTEMS_CPU_SUBDIR([no_cpu],[$1]);;
_RTEMS_CPU_SUBDIR([or1k],[$1]);;
_RTEMS_CPU_SUBDIR([powerpc],[$1]);; _RTEMS_CPU_SUBDIR([powerpc],[$1]);;
_RTEMS_CPU_SUBDIR([sh],[$1]);; _RTEMS_CPU_SUBDIR([sh],[$1]);;
_RTEMS_CPU_SUBDIR([sparc],[$1]);; _RTEMS_CPU_SUBDIR([sparc],[$1]);;

10
c/src/lib/libbsp/or1k/Makefile.am Normal file
View File

@@ -0,0 +1,10 @@
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 $(srcdir)/preinstall.am
include $(top_srcdir)/../../../automake/subdirs.am
include $(top_srcdir)/../../../automake/local.am

10
c/src/lib/libbsp/or1k/acinclude.m4 Normal file
View File

@@ -0,0 +1,10 @@
# RTEMS_CHECK_BSPDIR(RTEMS_BSP_FAMILY)
AC_DEFUN([RTEMS_CHECK_BSPDIR],
[
case "$1" in
or1ksim )
AC_CONFIG_SUBDIRS([or1ksim]);;
*)
AC_MSG_ERROR([Invalid BSP]);;
esac
])

19
c/src/lib/libbsp/or1k/configure.ac Normal file
View File

@@ -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-or1k],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla])
AC_CONFIG_SRCDIR([or1ksim])
RTEMS_TOP(../../../../..)
RTEMS_CANONICAL_TARGET_CPU
AM_INIT_AUTOMAKE([no-define foreign 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

109
c/src/lib/libbsp/or1k/or1ksim/Makefile.am Normal file
View File

@@ -0,0 +1,109 @@
#
# @file
#
# @brief Makefile of LibBSP for the or1ksim BSP.
#
ACLOCAL_AMFLAGS = -I ../../../../aclocal
include $(top_srcdir)/../../../../automake/compile.am
include_bspdir = $(includedir)/bsp
#include_libcpudir = $(includedir)/libcpu
dist_project_lib_DATA = bsp_specs
###############################################################################
# Header #
###############################################################################
include_bsp_HEADERS =
include_HEADERS = include/bsp.h
nodist_include_bsp_HEADERS = ../../shared/include/bootcard.h
include_bsp_HEADERS += ../shared/include/linker-symbols.h
include_bsp_HEADERS += ../../../libbsp/shared/include/mm.h
include_bsp_HEADERS += ../../shared/include/utility.h
include_bsp_HEADERS += ../../shared/include/irq-generic.h
include_bsp_HEADERS += ../../shared/include/irq-info.h
include_bsp_HEADERS += ../../shared/include/stackalloc.h
include_bsp_HEADERS += ../../shared/include/uart-output-char.h
include_bsp_HEADERS += ../../shared/tod.h
include_bsp_HEADERS += ../../shared/include/tm27.h
include_bsp_HEADERS += include/irq.h
include_bsp_HEADERS += include/uart.h
include_bsp_HEADERS += include/or1ksim.h
nodist_include_HEADERS = ../../shared/include/coverhd.h \
include/bspopts.h
###############################################################################
# Data #
###############################################################################
noinst_LIBRARIES = libbspstart.a
libbspstart_a_SOURCES = start/start.S
project_lib_DATA = start.$(OBJEXT)
project_lib_DATA += startup/linkcmds
project_lib_DATA += ../shared/startup/linkcmds.base
###############################################################################
# LibBSP #
###############################################################################
noinst_LIBRARIES += libbsp.a
libbsp_a_SOURCES =
libbsp_a_CPPFLAGS =
libbsp_a_LIBADD =
# Startup
libbsp_a_SOURCES += ../../shared/bspstart.c
libbsp_a_SOURCES += ../../shared/bspreset.c
# Shared
libbsp_a_SOURCES += ../../shared/bootcard.c
libbsp_a_SOURCES += ../../shared/bspclean.c
libbsp_a_SOURCES += ../../shared/bspgetworkarea.c
libbsp_a_SOURCES += ../../shared/bsplibc.c
libbsp_a_SOURCES += ../../shared/bsppost.c
libbsp_a_SOURCES += ../../shared/bsppredriverhook.c
libbsp_a_SOURCES += ../../shared/bsppretaskinghook.c
libbsp_a_SOURCES += ../../shared/cpucounterread.c
libbsp_a_SOURCES += ../../shared/cpucounterdiff.c
libbsp_a_SOURCES += ../../shared/gnatinstallhandler.c
libbsp_a_SOURCES += ../../shared/sbrk.c
libbsp_a_SOURCES += ../../shared/src/stackalloc.c
# Console
libbsp_a_SOURCES += ../../shared/console.c
libbsp_a_SOURCES += ../../shared/console_control.c
libbsp_a_SOURCES += ../../shared/console_read.c
libbsp_a_SOURCES += ../../shared/console_select.c
libbsp_a_SOURCES += ../../shared/console_write.c
libbsp_a_SOURCES += console/console-config.c
libbsp_a_SOURCES += console/uart.c
# Timer
libbsp_a_SOURCES += timer/timer.c
# clock
libbsp_a_SOURCES += clock/clockdrv.c ../../../shared/clockdrv_shell.h
# 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
###############################################################################
# Special Rules #
###############################################################################
DISTCLEANFILES = include/bspopts.h
include $(srcdir)/preinstall.am
include $(top_srcdir)/../../../../automake/local.am

17
c/src/lib/libbsp/or1k/or1ksim/README Normal file
View File

@@ -0,0 +1,17 @@
This BSP should run only on or1ksim: the main simulator for or1k architecture.
or1ksim should be used for testing purposes.
svn co http://opencores.org/ocsvn/openrisc/openrisc/trunk/or1ksim
cd or1ksim
mkdir builddir_or1ksim
cd builddir_or1ksim
../configure --target=or32-elf --prefix=/opt/or1ksim
make all
make install
export PATH=/opt/or1ksim/bin:$PATH
Configuration file "sim.cfg" should be provided for complex board
configurations at the current directory (which you run or1ksim from) or at
~/.or1k/
sim -f sim.cfg hello.exe

11
c/src/lib/libbsp/or1k/or1ksim/bsp_specs Normal file
View File

@@ -0,0 +1,11 @@
%rename endfile old_endfile
%rename startfile old_startfile
%rename link old_link
*startfile:
%{!qrtems: %(old_startfile)} %{!nostdlib: %{qrtems: \
%{!qrtems_debug: start.o%s} \
%{qrtems_debug: start_g.o%s}}}
*link:
%{!qrtems: %(old_link)} %{qrtems: -dc -dp -N -e _start}

104
c/src/lib/libbsp/or1k/or1ksim/clock/clockdrv.c Normal file
View File

@@ -0,0 +1,104 @@
/**
* @file
*
* @ingroup bsp_clock
*
* @brief or1ksim clock support.
*/
/*
* or1ksim Clock driver
*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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 <bsp/or1ksim.h>
#include <rtems/score/cpu.h>
#include <rtems/score/or1k-utility.h>
/* The number of clock cycles before generating a tick timer interrupt. */
#define TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT 0xFFED9
#define OR1KSIM_CLOCK_CYCLE_TIME_NANOSECONDS 10
/* This prototype is added here to Avoid warnings */
void Clock_isr(void *arg);
static void or1ksim_clock_at_tick(void)
{
uint32_t TTMR;
/* For TTMR register,
* The least significant 28 bits are the number of clock cycles
* before generating a tick timer interrupt. While the most
* significant 4 bits are used for mode configuration, tick timer
* interrupt enable and pending interrupts status.
*/
TTMR = (CPU_OR1K_SPR_TTMR_MODE_RESTART | CPU_OR1K_SPR_TTMR_IE |
(TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT & CPU_OR1K_SPR_TTMR_TP_MASK)
) & ~(CPU_OR1K_SPR_TTMR_IP);
_OR1K_mtspr(CPU_OR1K_SPR_TTMR, TTMR);
_OR1K_mtspr(CPU_OR1K_SPR_TTCR, 0);
}
static void or1ksim_clock_handler_install(proc_ptr new_isr, proc_ptr old_isr)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
old_isr = NULL;
_CPU_ISR_install_vector(OR1K_EXCEPTION_TICK_TIMER,
new_isr,
old_isr);
if (sc != RTEMS_SUCCESSFUL) {
rtems_fatal_error_occurred(0xdeadbeef);
}
}
static void or1ksim_clock_initialize(void)
{
uint32_t sr;
or1ksim_clock_at_tick();
/* Enable tick timer */
sr = _OR1K_mfspr(CPU_OR1K_SPR_SR);
sr |= CPU_OR1K_SPR_SR_TEE;
_OR1K_mtspr(CPU_OR1K_SPR_SR, sr);
}
static void or1ksim_clock_cleanup(void)
{
}
/*
* Return the nanoseconds since last tick
*/
static uint32_t or1ksim_clock_nanoseconds_since_last_tick(void)
{
return
TTMR_NUM_OF_CLOCK_TICKS_INTERRUPT * OR1KSIM_CLOCK_CYCLE_TIME_NANOSECONDS;
}
#define Clock_driver_support_at_tick() or1ksim_clock_at_tick()
#define Clock_driver_support_initialize_hardware() or1ksim_clock_initialize()
#define Clock_driver_support_install_isr(isr, old_isr) \
do { \
or1ksim_clock_handler_install(isr, old_isr); \
old_isr = NULL; \
} while (0)
#define Clock_driver_support_shutdown_hardware() or1ksim_clock_cleanup()
#define Clock_driver_nanoseconds_since_last_tick \
or1ksim_clock_nanoseconds_since_last_tick
#include "../../../shared/clockdrv_shell.h"

30
c/src/lib/libbsp/or1k/or1ksim/configure.ac Normal file
View File

@@ -0,0 +1,30 @@
#
# @file
#
# @brief Configure script of LibBSP for or1ksim BSP.
#
AC_PREREQ(2.69)
AC_INIT([rtems-c-src-lib-libbsp-or1k-or1ksim],[_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_OR1K_OR1KSIM_PERIPHCLK],[*],[100000000U])
RTEMS_BSPOPTS_HELP([BSP_OR1K_OR1KSIM_PERIPHCLK],[or1ksim PERIPHCLK clock frequency in Hz])
RTEMS_PROG_CC_FOR_TARGET([-ansi -fasm])
RTEMS_CANONICALIZE_TOOLS
RTEMS_PROG_CCAS
RTEMS_BSP_CLEANUP_OPTIONS(0, 0)
RTEMS_BSP_LINKCMDS
AC_CONFIG_FILES([Makefile])
AC_OUTPUT

58
c/src/lib/libbsp/or1k/or1ksim/console/console-config.c Normal file
View File

@@ -0,0 +1,58 @@
/**
* @file
*
* @ingroup or1ksim_uart
*
* @brief Console Configuration.
*/
/*
* Copyright (c) 2014 Hesham ALMatary
*
* 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/bspIo.h>
#include <libchip/serial.h>
#include <bspopts.h>
#include <bsp/uart.h>
#include <bsp/or1ksim.h>
console_tbl Console_Configuration_Ports [] = {
{
.sDeviceName = "/dev/ttyS0",
.deviceType = SERIAL_CUSTOM,
.pDeviceFns = &or1ksim_uart_fns,
.deviceProbe = NULL,
.pDeviceFlow = NULL,
.ulCtrlPort1 = OR1KSIM_BSP_UART_BASE,
.ulCtrlPort2 = 0,
.ulClock = OR1KSIM_UART_DEFAULT_BAUD,
.ulIntVector = OR1KSIM_BSP_UART_IRQ
}
};
#define PORT_COUNT \
(sizeof(Console_Configuration_Ports) \
/ sizeof(Console_Configuration_Ports [0]))
unsigned long Console_Configuration_Count = PORT_COUNT;
static void output_char(char c)
{
const console_fns *con =
Console_Configuration_Ports [Console_Port_Minor].pDeviceFns;
if (c == '\n') {
con->deviceWritePolled((int) Console_Port_Minor, '\r');
}
con->deviceWritePolled((int) Console_Port_Minor, c);
}
BSP_output_char_function_type BSP_output_char = output_char;
BSP_polling_getchar_function_type BSP_poll_char = NULL;

144
c/src/lib/libbsp/or1k/or1ksim/console/uart.c Normal file
View File

@@ -0,0 +1,144 @@
/**
* @file
*
* @ingroup or1ksim_uart
*
* @brief UART support.
*/
/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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 <libchip/sersupp.h>
#include <bsp/or1ksim.h>
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/uart.h>
#include <rtems/score/isr.h>
static rtems_vector_number uart_get_irq_number(const console_tbl *ct)
{
return ct->ulIntVector;
}
static uint32_t uart_get_baud(const console_tbl *ct)
{
return ct->ulClock;
}
static void uart_set_baud(int baud)
{
int divisor = (OR1KSIM_BSP_CLOCK_FREQ) / (16 * baud);
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_LINE_CTRL) |=
OR1KSIM_BSP_UART_REG_LINE_CTRL_DLAB;
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_DEV_LATCH_LOW) = divisor & 0xff;
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_DEV_LATCH_HIGH) =
(divisor >> 8) & 0xff;
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_LINE_CTRL) &=
~(OR1KSIM_BSP_UART_REG_LINE_CTRL_DLAB);
}
static void uart_initialize(int minor)
{
/* Disable all interrupts */
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_INT_ENABLE) = 0x00;
/* Reset receiver and transmitter */
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_FIFO_CTRL) =
OR1KSIM_BSP_UART_REG_FIFO_CTRL_ENABLE_FIFO |
OR1KSIM_BSP_UART_REG_FIFO_CTRL_CLEAR_RCVR |
OR1KSIM_BSP_UART_REG_FIFO_CTRL_CLEAR_XMIT |
OR1KSIM_BSP_UART_REG_FIFO_CTRL_TRIGGER_14;
/* Set data pattern configuration */
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_LINE_CTRL) =
OR1KSIM_BSP_UART_REG_LINE_CTRL_WLEN8 &
(OR1KSIM_BSP_UART_REG_LINE_CTRL_STOP |
OR1KSIM_BSP_UART_REG_LINE_CTRL_PARITY);
/* Set baud rate */
uart_set_baud(OR1KSIM_UART_DEFAULT_BAUD);
}
static int uart_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 uart_last_close(int major, int minor, void *arg)
{
return 0;
}
static int uart_read_polled(int minor)
{
return -1;
}
static void uart_write_polled(int minor, char c)
{
unsigned char lsr;
const uint32_t transmit_finished =
(OR1KSIM_BSP_UART_REG_LINE_STATUS_TEMT |
OR1KSIM_BSP_UART_REG_LINE_STATUS_THRE);
/* Wait until there is no pending data in the transmitter FIFO (empty) */
do {
lsr = OR1KSIM_REG(OR1KSIM_BSP_UART_REG_LINE_STATUS);
} while (!(lsr & OR1KSIM_BSP_UART_REG_LINE_STATUS_THRE));
OR1KSIM_REG(OR1KSIM_BSP_UART_REG_TX) = c;
/* Wait until trasmit data is finished */
do {
lsr = OR1KSIM_REG(OR1KSIM_BSP_UART_REG_LINE_STATUS);
} while ( (lsr & transmit_finished) != transmit_finished );
}
static ssize_t uart_write_support_polled(
int minor,
const char *s,
size_t n
)
{
ssize_t i = 0;
for (i = 0; i < n; ++i){
uart_write_polled(minor, s [i]);
}
return n;
}
static int uart_set_attributes(int minor, const struct termios *term)
{
return -1;
}
const console_fns or1ksim_uart_fns = {
.deviceProbe = libchip_serial_default_probe,
.deviceFirstOpen = uart_first_open,
.deviceLastClose = uart_last_close,
.deviceRead = uart_read_polled,
.deviceWrite = uart_write_support_polled,
.deviceInitialize = uart_initialize,
.deviceWritePolled = uart_write_polled,
.deviceSetAttributes = uart_set_attributes,
.deviceOutputUsesInterrupts = false
};

47
c/src/lib/libbsp/or1k/or1ksim/include/bsp.h Normal file
View File

@@ -0,0 +1,47 @@
/**
* @file
*
* @ingroup or1k_or1ksim
*
* @brief Global BSP definitions.
*/
/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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
*/
#ifndef LIBBSP_OR1K_OR1KSIM_H
#define LIBBSP_OR1K_OR1KSIM_H
#include <bspopts.h>
#include <rtems.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>
#include <bsp/or1ksim.h>
#include <bsp/default-initial-extension.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define BSP_FEATURE_IRQ_EXTENSION
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_OR1K_OR1KSIM_H */
/**
* @defgroup or1k_or1ksim support
*
* @ingroup bsp_or1k
*
* @brief or1ksim support package
*
*/

45
c/src/lib/libbsp/or1k/or1ksim/include/irq.h Normal file
View File

@@ -0,0 +1,45 @@
/**
* @file
*
* @ingroup or1ksim_interrupt
*
* @brief Interrupt definitions.
*/
/**
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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
*/
#ifndef LIBBSP_OR1K_OR1KSIM_IRQ_H
#define LIBBSP_OR1K_OR1KSIM_IRQ_H
#ifndef ASM
#include <rtems.h>
#include <rtems/irq.h>
#include <rtems/irq-extension.h>
#define BSP_INTERRUPT_VECTOR_MIN 0x100
#define BSP_INTERRUPT_VECTOR_MAX 0x1F00
/* Interrupt Identification Register */
#define OR1KSIM_BSP_UART_REG_INT_ID_MSI (0x00)
#define OR1KSIM_BSP_UART_REG_INT_ID_NO_INT (0x01)
#define OR1KSIM_BSP_UART_REG_INT_ID_THRI (0x02)
#define OR1KSIM_BSP_UART_REG_INT_ID_RDI (0x04)
#define OR1KSIM_BSP_UART_REG_INT_ID_ID (0x06)
#define OR1KSIM_BSP_UART_REG_INT_ID_RLSI (0x06)
#define OR1KSIM_BSP_UART_REG_INT_ID_TOI (0x0c)
/* Interrupt Enable Register */
#define OR1KSIM_BSP_UART_REG_INT_ENABLE_RDI (0x01)
#define OR1KSIM_BSP_UART_REG_INT_ENABLE_THRI (0x02)
#define OR1KSIM_BSP_UART_REG_INT_ENABLE_RLSI (0x04)
#define OR1KSIM_BSP_UART_REG_INT_ENABLE_MSI (0x08)
#endif /* ASM */
#endif /* LIBBSP_OR1K_OR1KSIM_IRQ_H */

118
c/src/lib/libbsp/or1k/or1ksim/include/or1ksim.h Normal file
View File

@@ -0,0 +1,118 @@
/**
* @file
*
* @ingroup or1ksim_reg
*
* @brief Register definitions.
*/
/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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
*/
#ifndef LIBBSP_OR1K_OR1KSIM_H
#define LIBBSP_OR1K_OR1KSIM_H
#include <stdint.h>
/**
* @defgroup or1ksim_reg Register Definitions
*
* @ingroup or1k_or1ksim
*
* @brief Register Definitions
*
* @{
*/
/**
* @name Register Macros
*
* @{
*/
#define OR1KSIM_REG(x) (*((volatile char *) (x)))
#define OR1KSIM_BIT(n) (1 << (n))
/** @} */
/**
* @name Internal OR1K UART Registers
*
* @{
*/
#define OR1KSIM_BSP_CLOCK_FREQ 100000000UL
#define OR1KSIM_BSP_UART_BASE 0x90000000
#define OR1KSIM_BSP_UART_REG_TX (OR1KSIM_BSP_UART_BASE+0)
#define OR1KSIM_BSP_UART_REG_RX (OR1KSIM_BSP_UART_BASE+0)
#define OR1KSIM_BSP_UART_REG_DEV_LATCH_LOW (OR1KSIM_BSP_UART_BASE+1)
#define OR1KSIM_BSP_UART_REG_DEV_LATCH_HIGH (OR1KSIM_BSP_UART_BASE+1)
#define OR1KSIM_BSP_UART_REG_INT_ENABLE (OR1KSIM_BSP_UART_BASE+2)
#define OR1KSIM_BSP_UART_REG_INT_ID (OR1KSIM_BSP_UART_BASE+2)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL (OR1KSIM_BSP_UART_BASE+2)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL (OR1KSIM_BSP_UART_BASE+3)
#define OR1KSIM_BSP_UART_REG_MODEM_CTRL (OR1KSIM_BSP_UART_BASE+4)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS (OR1KSIM_BSP_UART_BASE+5)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS (OR1KSIM_BSP_UART_BASE+6)
#define OR1KSIM_BSP_UART_REG_SCRATCH (OR1KSIM_BSP_UART_BASE+7)
/* FIFO Control Register */
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_TRIGGER_1 (0x00)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_ENABLE_FIFO (0x01)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_CLEAR_RCVR (0x02)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_CLEAR_XMIT (0x03)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_DMA_SELECT (0x08)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_TRIGGER_4 (0x40)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_TRIGGER_8 (0x80)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_TRIGGER_14 (0xC0)
#define OR1KSIM_BSP_UART_REG_FIFO_CTRL_TRIGGER_MASK (0xC0)
/* Line Control Register */
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_WLEN5 (0x00)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_WLEN6 (0x01)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_WLEN7 (0x02)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_WLEN8 (0x03)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_STOP (0x04)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_PARITY (0x08)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_EPAR (0x10)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_SPAR (0x20)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_SBC (0x40)
#define OR1KSIM_BSP_UART_REG_LINE_CTRL_DLAB (0x80)
/* Line Status Register */
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_DR (0x01)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_OE (0x02)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_PE (0x04)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_FE (0x08)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_BI (0x10)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_THRE (0x20)
#define OR1KSIM_BSP_UART_REG_LINE_STATUS_TEMT (0x40)
/* Modem Control Register */
#define OR1KSIM_BSP_UART_REG_MODEM_CTRL_DTR (0x01)
#define OR1KSIM_BSP_UART_REG_MODEM_CTRL_RTS (0x02)
#define OR1KSIM_BSP_UART_REG_MODEM_CTRL_OUT1 (0x04)
#define OR1KSIM_BSP_UART_REG_MODEM_CTRL_OUT2 (0x08)
#define OR1KSIM_BSP_UART_REG_MODEM_CTRL_LOOP (0x10)
/* Modem Status Register */
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_DCTS (0x01)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_DDSR (0x02)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_TERI (0x04)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_DDCD (0x08)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_CTS (0x10)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_DSR (0x20)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_RI (0x40)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_DCD (0x80)
#define OR1KSIM_BSP_UART_REG_MODEM_STATUS_ANY_DELTA (0x0F)
/** @} */
/** @} */
#endif /* LIBBSP_OR1K_OR1KSIM_H */

42
c/src/lib/libbsp/or1k/or1ksim/include/uart.h Normal file
View File

@@ -0,0 +1,42 @@
/**
* @file
*
* @ingroup or1ksim_uart
*
* @brief UART support.
*/
/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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
*/
/**
* @defgroup or1ksim_uart UART Support
*
* @ingroup or1k_or1ksim
*
* @brief Universal Asynchronous Receiver/Transmitter (UART) Support
*/
#ifndef LIBBSP_OR1K_OR1KSIM_UART_H
#define LIBBSP_OR1K_OR1KSIM_UART_H
#include <libchip/serial.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define OR1KSIM_UART_DEFAULT_BAUD 115200
#define OR1KSIM_BSP_UART_IRQ 13
extern const console_fns or1ksim_uart_fns;
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_OR1K_OR1KSIM_UART_H */

42
c/src/lib/libbsp/or1k/or1ksim/irq/irq.c Normal file
View File

@@ -0,0 +1,42 @@
/**
* @file
*
* @ingroup or1k_interrupt
*
* @brief Interrupt support.
*/
/*
* Copyright (c) 2014 Hesham ALMatary
*
* 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/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()
{
return 0;
}
rtems_status_code bsp_interrupt_vector_enable(rtems_vector_number vector)
{
return 0;
}
rtems_status_code bsp_interrupt_vector_disable(rtems_vector_number vector)
{
return 0;
}

7
c/src/lib/libbsp/or1k/or1ksim/make/custom/or1k_or1ksim.cfg Normal file
View File

@@ -0,0 +1,7 @@
include $(RTEMS_ROOT)/make/custom/default.cfg
RTEMS_CPU = or1k
CPU_CFLAGS = -O2
CFLAGS_OPTIMIZE_V ?= -O0 -g

114
c/src/lib/libbsp/or1k/or1ksim/preinstall.am Normal file
View File

@@ -0,0 +1,114 @@
## 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_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)/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/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/mm.h: ../../../libbsp/shared/include/mm.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/mm.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/mm.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/tm27.h: ../../shared/include/tm27.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/tm27.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/tm27.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/uart.h: include/uart.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/uart.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/uart.h
$(PROJECT_INCLUDE)/bsp/or1ksim.h: include/or1ksim.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/or1ksim.h
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/or1ksim.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
$(PROJECT_LIB)/start.$(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

182
c/src/lib/libbsp/or1k/or1ksim/start/start.S Normal file
View File

@@ -0,0 +1,182 @@
/*
* Copyright (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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/linker-symbols.h>
/* The following macro defines the first instructions every exception
* should execute before jumping to its handler function from the
* exception vector table. r3 is saved into the stack and loaded with
* vector number before jumping to _ISR_Handler. r3 value is restored
* back from _ISR_Handler after handling the exception and before
* returning from interrupt.
*/
#define EXCEPTION_SETUP(vector) \
l.nop ;\
l.addi r1, r1, -4 ;\
l.sw 0(r1), r3; \
l.addi r3, r0, vector; \
l.j _ISR_Handler; \
l.nop
.extern bsp_start
.extern boot_card
.extern bsp_section_bss_begin
.extern bsp_section_bss_end
.extern bsp_start_vector_table_end
.extern bsp_start_vector_table_size
.extern bsp_vector_table_size
.extern bsp_section_stack_begin
.extern exception_frame_save
.extern _OR1K_Exception_Process
.extern _OR1K_Exception_default
.extern rtems_clock_tick
.extern _exit
.extern printk
.extern bsp_interrupt_handler_default
/* Global symbols */
.global _start
.global bsp_start_vector_table_begin
/* Popualte HW vector table */
.section .vector, "ax"
.org 0x100
_reset:
l.j _start
l.nop
.org 0x200
_buserr:
EXCEPTION_SETUP(2)
.org 0x300
_dPageFault:
EXCEPTION_SETUP(3)
.org 0x400
_iPageFaule:
EXCEPTION_SETUP(4)
.org 0x500
_timer:
EXCEPTION_SETUP(5)
.org 0x600
_unalign:
EXCEPTION_SETUP(6)
.org 0x700
_undefIns:
EXCEPTION_SETUP(7)
.org 0x800
_exInt:
EXCEPTION_SETUP(8)
.org 0x900
_dTLB:
EXCEPTION_SETUP(9)
.org 0xA00
_iTLB:
EXCEPTION_SETUP(10)
.org 0xB00
_range:
EXCEPTION_SETUP(11)
.org 0xC00
_syscall:
EXCEPTION_SETUP(12)
.org 0xD00
_fp:
EXCEPTION_SETUP(13)
.org 0xE00
_trap:
EXCEPTION_SETUP(14)
.org 0xF00
_undef1:
EXCEPTION_SETUP(15)
.org 0x1500
_undef2:
EXCEPTION_SETUP(16)
.org 0x1900
_undef3:
EXCEPTION_SETUP(17)
.org 0x1F00
bsp_start_vector_table_begin:
.word 0
.word _start /* Reset */
.word _OR1K_Exception_default /* Bus Error */
.word _OR1K_Exception_default /* Data Page Fault */
.word _OR1K_Exception_default /* Instruction Page Fault */
.word _OR1K_Exception_default /* Tick timer */
.word _OR1K_Exception_default /* Alignment */
.word _OR1K_Exception_default /* Undefiend Instruction */
.word _OR1K_Exception_default /* External Interrupt */
.word _OR1K_Exception_default /* Data TLB Miss */
.word _OR1K_Exception_default /* Instruction TLB Miss */
.word _OR1K_Exception_default /* Range Exception */
.word _OR1K_Exception_default /* System Call */
.word _OR1K_Exception_default /* Floating Point Exception */
.word _OR1K_Exception_default /* Trap */
.word _OR1K_Exception_default /* Reserver for future use */
.word _OR1K_Exception_default /* Reserved for implementation-specific */
.word _OR1K_Exception_default /* Reserved for custom exceptions. */
bsp_start_vector_table_end:
.section ".bsp_start_text", "ax"
.type _start,@function
_start:
/* Set SR register to Supervision mode */
l.ori r1, r0, 0x1
l.mtspr r0, r1, 17
/* load stack and frame pointers */
l.movhi r1, hi(bsp_section_stack_begin)
l.ori r1, r1, lo(bsp_section_stack_begin)
l.add r2, r0, r1
/* Clearing .bss */
l.movhi r13, hi(bsp_section_bss_begin)
l.ori r13, r13, lo(bsp_section_bss_begin)
l.movhi r15, hi(bsp_section_bss_end)
l.ori r15, r15, lo(bsp_section_bss_end)
_loop_clear_bss:
l.sfgeu r13, r15
l.bf _end_clear_bss
l.addi r13, r13, 4
l.sw 0(r13), r0
l.j _loop_clear_bss
l.nop
_end_clear_bss:
l.j boot_card
l.nop
/* Temporary code for unhandled exceptions */
.section .text
.align
.global _unhandled_exception
unhandled_exception:
l.nop

41
c/src/lib/libbsp/or1k/or1ksim/startup/linkcmds Normal file
View File

@@ -0,0 +1,41 @@
/**
* @file
*
* @ingroup bsp_linker
*
* @brief Memory map
*/
/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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
*/
MEMORY
{
VECTOR_RAM (AIW) : ORIGIN = 0x0 , LENGTH = 8260
RAM : org = 0x00002048, l = 0x1FFDFB8
UNEXPECTED_SECTIONS : ORIGIN = 0xffffffff, LENGTH = 0
}
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_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_section_vector_begin = 0;
bsp_section_stack_begin = 0x1FFDFB8;
INCLUDE linkcmds.base

64
c/src/lib/libbsp/or1k/or1ksim/timer/timer.c Normal file
View File

@@ -0,0 +1,64 @@
/**
* @file
*
* @ingroup or1ksim
*
* @brief Benchmark timer support.
*/
/*
* Copyright (c) 2014 by Hesham ALMatary
*
* 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 <rtems/btimer.h>
#include <bsp/or1ksim.h>
#include <rtems/score/or1k-utility.h>
#define OR1KSIM_NANOSECONDS_PER_CLK_CYCLE 10
static bool benchmark_timer_find_average_overhead = false;
static uint64_t benchmark_timer_base;
void benchmark_timer_initialize(void)
{
benchmark_timer_base = _OR1K_mfspr(CPU_OR1K_SPR_TTCR);
}
#define AVG_OVERHEAD 0
#define LEAST_VALID 1
uint32_t benchmark_timer_read( void )
{
uint64_t clicks;
uint64_t total;
uint64_t delta;
/*
* Read the timer and see how many clicks (clock cycles)
* has passed since timer initialization.
*/
clicks = _OR1K_mfspr(CPU_OR1K_SPR_TTCR);
delta = clicks - benchmark_timer_base;
/* total in nanoseconds */
total = OR1KSIM_NANOSECONDS_PER_CLK_CYCLE * (delta);
if ( benchmark_timer_find_average_overhead == true )
return total; /* in nanoseconds microsecond units */
else {
if ( total < LEAST_VALID )
return 0; /* below timer resolution */
return (total - AVG_OVERHEAD);
}
}
void benchmark_timer_disable_subtracting_average_overhead(bool find_flag)
{
benchmark_timer_find_average_overhead = find_flag;
}

6
c/src/lib/libbsp/or1k/preinstall.am Normal file
View File

@@ -0,0 +1,6 @@
## Automatically generated by ampolish3 - Do not edit
if AMPOLISH3
$(srcdir)/preinstall.am: Makefile.am
$(AMPOLISH3) $(srcdir)/Makefile.am > $(srcdir)/preinstall.am
endif

79
c/src/lib/libbsp/or1k/shared/include/linker-symbols.h Normal file
View File

@@ -0,0 +1,79 @@
#ifndef LIBBSP_OR1k_SHARED_LINKER_SYMBOLS_H
#define LIBBSP_OR1k_SHARED_LINKER_SYMBOLS_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup or1k_linker Linker Support
*
* @ingroup or1k_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)
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_OR1K_SHARED_LINKER_SYMBOLS_H */

310
c/src/lib/libbsp/or1k/shared/startup/linkcmds.base Normal file
View File

@@ -0,0 +1,310 @@
/**
* @file
*
* @ingroup bsp_linker
*
* @brief Linker command base file.
*/
/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* 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
*/
OUTPUT_ARCH (or1k)
ENTRY (_start)
/*
* Global symbols that may be defined externally
*/
bsp_start_vector_table_begin = 0x1F00;
bsp_vector_table_size = DEFINED (bsp_vector_table_size) ? bsp_vector_table_size
: 8260;
/* 8192 for raw vector table, and 17 * 4 for handlers vector. */
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 : 0;
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_WITH_INPUT {
*(.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_WITH_INPUT {
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_WITH_INPUT {
. = ALIGN (bsp_section_xbarrier_align);
} > REGION_VECTOR AT > REGION_VECTOR
.text : ALIGN_WITH_INPUT {
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 : ALIGN_WITH_INPUT {
KEEP (*(.init))
} > REGION_TEXT AT > REGION_TEXT_LOAD
.fini : ALIGN_WITH_INPUT {
KEEP (*(.fini))
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_WITH_INPUT {
. = ALIGN (bsp_section_robarrier_align);
} > REGION_RODATA AT > REGION_RODATA
.rodata : ALIGN_WITH_INPUT {
bsp_section_rodata_begin = .;
*(.rodata .rodata.* .gnu.linkonce.r.*)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.eh_frame : ALIGN_WITH_INPUT {
KEEP (*(.eh_frame))
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gcc_except_table : ALIGN_WITH_INPUT {
*(.gcc_except_table .gcc_except_table.*)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.tdata : ALIGN_WITH_INPUT {
_TLS_Data_begin = .;
*(.tdata .tdata.* .gnu.linkonce.td.*)
_TLS_Data_end = .;
} > REGION_RODATA AT > REGION_RODATA_LOAD
.tbss : ALIGN_WITH_INPUT {
_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 : ALIGN_WITH_INPUT {
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE_HIDDEN (__preinit_array_end = .);
} > REGION_RODATA AT > REGION_RODATA_LOAD
.init_array : ALIGN_WITH_INPUT {
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 : ALIGN_WITH_INPUT {
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE_HIDDEN (__fini_array_end = .);
} > REGION_RODATA AT > REGION_RODATA_LOAD
.ctors : ALIGN_WITH_INPUT {
/* 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 : ALIGN_WITH_INPUT {
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 : ALIGN_WITH_INPUT {
*(.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 : ALIGN_WITH_INPUT {
KEEP (*(.jcr))
} > REGION_RODATA AT > REGION_RODATA_LOAD
.interp : ALIGN_WITH_INPUT {
*(.interp)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.note.gnu.build-id : ALIGN_WITH_INPUT {
*(.note.gnu.build-id)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.hash : ALIGN_WITH_INPUT {
*(.hash)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.hash : ALIGN_WITH_INPUT {
*(.gnu.hash)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.dynsym : ALIGN_WITH_INPUT {
*(.dynsym)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.dynstr : ALIGN_WITH_INPUT {
*(.dynstr)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.version : ALIGN_WITH_INPUT {
*(.gnu.version)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.version_d : ALIGN_WITH_INPUT {
*(.gnu.version_d)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.version_r : ALIGN_WITH_INPUT {
*(.gnu.version_r)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rel.dyn : ALIGN_WITH_INPUT {
*(.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 : ALIGN_WITH_INPUT {
*(.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 : ALIGN_WITH_INPUT {
*(.rel.plt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rela.plt : ALIGN_WITH_INPUT {
*(.rela.plt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.plt : ALIGN_WITH_INPUT {
*(.plt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.iplt : ALIGN_WITH_INPUT {
*(.iplt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.dynamic : ALIGN_WITH_INPUT {
*(.dynamic)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.got : ALIGN_WITH_INPUT {
*(.got.plt) *(.igot.plt) *(.got) *(.igot)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rtemsroset : ALIGN_WITH_INPUT {
/* Special FreeBSD linker set sections */
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = .;
*(set_domain_*);
*(set_pseudo_*);
KEEP (*(SORT(.rtemsroset.*)))
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;
.rwbarrier : ALIGN_WITH_INPUT {
. = ALIGN (bsp_section_rwbarrier_align);
} > REGION_DATA AT > REGION_DATA
.data : ALIGN_WITH_INPUT {
bsp_section_data_begin = .;
*(.data .data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
} > REGION_DATA AT > REGION_DATA_LOAD
.data1 : ALIGN_WITH_INPUT {
*(.data1)
} > REGION_DATA AT > REGION_DATA_LOAD
.rtemsrwset : ALIGN_WITH_INPUT {
KEEP (*(SORT(.rtemsrwset.*)))
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_WITH_INPUT {
bsp_section_bss_begin = .;
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
bsp_section_bss_end = .;
} > REGION_BSS AT > REGION_BSS
bsp_section_bss_size = bsp_section_bss_end - bsp_section_bss_begin;
.work : ALIGN_WITH_INPUT {
/*
* The work section will occupy the remaining REGION_WORK region and
* contains the RTEMS work space and heap.
*/
bsp_section_work_begin = .;
. += ORIGIN (REGION_WORK) + LENGTH (REGION_WORK) - ABSOLUTE (.);
bsp_section_work_end = .;
} > REGION_WORK AT > REGION_WORK
bsp_section_work_size = bsp_section_work_end - bsp_section_work_begin;
.stack : ALIGN_WITH_INPUT {
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;
}