diff options
24 files changed, 1610 insertions, 0 deletions
diff --git a/c/src/aclocal/rtems-cpu-subdirs.m4 b/c/src/aclocal/rtems-cpu-subdirs.m4 index c5a4a19054..9593d34a6c 100644 --- a/c/src/aclocal/rtems-cpu-subdirs.m4 +++ b/c/src/aclocal/rtems-cpu-subdirs.m4 @@ -23,6 +23,7 @@ _RTEMS_CPU_SUBDIR([mips],[$1]);; _RTEMS_CPU_SUBDIR([moxie],[$1]);; _RTEMS_CPU_SUBDIR([nios2],[$1]);; _RTEMS_CPU_SUBDIR([no_cpu],[$1]);; +_RTEMS_CPU_SUBDIR([or1k],[$1]);; _RTEMS_CPU_SUBDIR([powerpc],[$1]);; _RTEMS_CPU_SUBDIR([sh],[$1]);; _RTEMS_CPU_SUBDIR([sparc],[$1]);; diff --git a/c/src/lib/libbsp/or1k/Makefile.am b/c/src/lib/libbsp/or1k/Makefile.am new file mode 100644 index 0000000000..0ce20e62fa --- /dev/null +++ b/c/src/lib/libbsp/or1k/Makefile.am @@ -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 diff --git a/c/src/lib/libbsp/or1k/acinclude.m4 b/c/src/lib/libbsp/or1k/acinclude.m4 new file mode 100644 index 0000000000..c593670d13 --- /dev/null +++ b/c/src/lib/libbsp/or1k/acinclude.m4 @@ -0,0 +1,10 @@ +# RTEMS_CHECK_BSPDIR(RTEMS_BSP_FAMILY) +AC_DEFUN([RTEMS_CHECK_BSPDIR], +[ + case "$1" in + or1ksim ) + AC_CONFIG_SUBDIRS([or1ksim]);; + *) + AC_MSG_ERROR([Invalid BSP]);; + esac +]) diff --git a/c/src/lib/libbsp/or1k/configure.ac b/c/src/lib/libbsp/or1k/configure.ac new file mode 100644 index 0000000000..96bba167c7 --- /dev/null +++ b/c/src/lib/libbsp/or1k/configure.ac @@ -0,0 +1,19 @@ +# Process this file with autoconf to produce a configure script. + +AC_PREREQ([2.69]) +AC_INIT([rtems-c-src-lib-libbsp-or1k],[_RTEMS_VERSION],[http://www.rtems.org/bugzilla]) +AC_CONFIG_SRCDIR([or1ksim]) +RTEMS_TOP(../../../../..) + +RTEMS_CANONICAL_TARGET_CPU +AM_INIT_AUTOMAKE([no-define foreign 1.12.2]) +AM_MAINTAINER_MODE + +RTEMS_ENV_RTEMSBSP +RTEMS_PROJECT_ROOT + +RTEMS_CHECK_BSPDIR([$RTEMS_BSP_FAMILY]) + +# Explicitly list all Makefiles here +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/c/src/lib/libbsp/or1k/or1ksim/Makefile.am b/c/src/lib/libbsp/or1k/or1ksim/Makefile.am new file mode 100644 index 0000000000..d5eb10c28e --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/Makefile.am @@ -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 $(top_srcdir)/../../../../automake/local.am diff --git a/c/src/lib/libbsp/or1k/or1ksim/README b/c/src/lib/libbsp/or1k/or1ksim/README new file mode 100644 index 0000000000..43b4703171 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/README @@ -0,0 +1,17 @@ +This BSP should run only on or1ksim: the main simulator for or1k architecture. +or1ksim should be used for testing purposes. + +svn co http://opencores.org/ocsvn/openrisc/openrisc/trunk/or1ksim +cd or1ksim +mkdir builddir_or1ksim +cd builddir_or1ksim +../configure --target=or32-elf --prefix=/opt/or1ksim +make all +make install +export PATH=/opt/or1ksim/bin:$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 diff --git a/c/src/lib/libbsp/or1k/or1ksim/bsp_specs b/c/src/lib/libbsp/or1k/or1ksim/bsp_specs new file mode 100644 index 0000000000..0fcd2dcc11 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/bsp_specs @@ -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} diff --git a/c/src/lib/libbsp/or1k/or1ksim/clock/clockdrv.c b/c/src/lib/libbsp/or1k/or1ksim/clock/clockdrv.c new file mode 100644 index 0000000000..3877fe0751 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/clock/clockdrv.c @@ -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" diff --git a/c/src/lib/libbsp/or1k/or1ksim/configure.ac b/c/src/lib/libbsp/or1k/or1ksim/configure.ac new file mode 100644 index 0000000000..8aff7e37a0 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/configure.ac @@ -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 diff --git a/c/src/lib/libbsp/or1k/or1ksim/console/console-config.c b/c/src/lib/libbsp/or1k/or1ksim/console/console-config.c new file mode 100644 index 0000000000..9853f2041d --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/console/console-config.c @@ -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; diff --git a/c/src/lib/libbsp/or1k/or1ksim/console/uart.c b/c/src/lib/libbsp/or1k/or1ksim/console/uart.c new file mode 100644 index 0000000000..f1cfa0985f --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/console/uart.c @@ -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 +}; diff --git a/c/src/lib/libbsp/or1k/or1ksim/include/bsp.h b/c/src/lib/libbsp/or1k/or1ksim/include/bsp.h new file mode 100644 index 0000000000..502e4d9302 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/include/bsp.h @@ -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 + * + */ diff --git a/c/src/lib/libbsp/or1k/or1ksim/include/irq.h b/c/src/lib/libbsp/or1k/or1ksim/include/irq.h new file mode 100644 index 0000000000..be669d84a0 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/include/irq.h @@ -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 */ diff --git a/c/src/lib/libbsp/or1k/or1ksim/include/or1ksim.h b/c/src/lib/libbsp/or1k/or1ksim/include/or1ksim.h new file mode 100644 index 0000000000..827956634f --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/include/or1ksim.h @@ -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 */ diff --git a/c/src/lib/libbsp/or1k/or1ksim/include/uart.h b/c/src/lib/libbsp/or1k/or1ksim/include/uart.h new file mode 100644 index 0000000000..92ed203844 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/include/uart.h @@ -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 */ diff --git a/c/src/lib/libbsp/or1k/or1ksim/irq/irq.c b/c/src/lib/libbsp/or1k/or1ksim/irq/irq.c new file mode 100644 index 0000000000..c3c4d6d4a4 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/irq/irq.c @@ -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; +} diff --git a/c/src/lib/libbsp/or1k/or1ksim/make/custom/or1k_or1ksim.cfg b/c/src/lib/libbsp/or1k/or1ksim/make/custom/or1k_or1ksim.cfg new file mode 100644 index 0000000000..fff00ae83b --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/make/custom/or1k_or1ksim.cfg @@ -0,0 +1,7 @@ +include $(RTEMS_ROOT)/make/custom/default.cfg + +RTEMS_CPU = or1k + +CPU_CFLAGS = -O2 + +CFLAGS_OPTIMIZE_V ?= -O0 -g diff --git a/c/src/lib/libbsp/or1k/or1ksim/preinstall.am b/c/src/lib/libbsp/or1k/or1ksim/preinstall.am new file mode 100644 index 0000000000..e75733cc3b --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/preinstall.am @@ -0,0 +1,114 @@ +## Automatically generated by ampolish3 - Do not edit + +if AMPOLISH3 +$(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 diff --git a/c/src/lib/libbsp/or1k/or1ksim/start/start.S b/c/src/lib/libbsp/or1k/or1ksim/start/start.S new file mode 100644 index 0000000000..6942b5217f --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/start/start.S @@ -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 diff --git a/c/src/lib/libbsp/or1k/or1ksim/startup/linkcmds b/c/src/lib/libbsp/or1k/or1ksim/startup/linkcmds new file mode 100644 index 0000000000..cef99d36d0 --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/startup/linkcmds @@ -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 diff --git a/c/src/lib/libbsp/or1k/or1ksim/timer/timer.c b/c/src/lib/libbsp/or1k/or1ksim/timer/timer.c new file mode 100644 index 0000000000..ec3c33ed0f --- /dev/null +++ b/c/src/lib/libbsp/or1k/or1ksim/timer/timer.c @@ -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; +} diff --git a/c/src/lib/libbsp/or1k/preinstall.am b/c/src/lib/libbsp/or1k/preinstall.am new file mode 100644 index 0000000000..fe8d090bb2 --- /dev/null +++ b/c/src/lib/libbsp/or1k/preinstall.am @@ -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 diff --git a/c/src/lib/libbsp/or1k/shared/include/linker-symbols.h b/c/src/lib/libbsp/or1k/shared/include/linker-symbols.h new file mode 100644 index 0000000000..f0f8377892 --- /dev/null +++ b/c/src/lib/libbsp/or1k/shared/include/linker-symbols.h @@ -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 */ diff --git a/c/src/lib/libbsp/or1k/shared/startup/linkcmds.base b/c/src/lib/libbsp/or1k/shared/startup/linkcmds.base new file mode 100644 index 0000000000..31bb92dd1d --- /dev/null +++ b/c/src/lib/libbsp/or1k/shared/startup/linkcmds.base @@ -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; +} |