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684 changed files with 63871 additions and 3758 deletions

3
.gitignore vendored
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@ -151,6 +151,3 @@ compile_commands.json
CTestTestfile.cmake
*.dump
.vscode/c_cpp_properties.json
semihosting_test/build/semihosting_test
semihosting_test/build/Makefile

6
.gitmodules vendored
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[submodule "benchmarks/coremark/cm"]
path = benchmarks/coremark/cm
url = https://github.com/eembc/coremark.git
[submodule "bare-metal-bsp"]
path = bare-metal-bsp
url = https://git.minres.com/Firmware/MNRS-BM-BSP.git

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if (NOT DEFINED BOARD)
set(BOARD iss)
endif()
if (NOT DEFINED ISA)
set(ISA imc)
endif()
message(STATUS "Building firmware using ${BOARD} board configuration and isa ${ISA}")
add_custom_target(fw-common ALL
COMMAND make -C hello-world BOARD=${BOARD} ISA=${ISA} && make -C benchmarks/dhrystone BOARD=${BOARD} ISA=${ISA} && make -C benchmarks/coremark BOARD=${BOARD} ISA=${ISA}
USES_TERMINAL
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})

81
Jenkinsfile vendored
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void checkout_project() {
checkout([
$class: 'GitSCM',
branches: [
[name: '*/main']
],
extensions: [
[$class: 'CleanBeforeCheckout'],
[$class: 'SubmoduleOption', disableSubmodules: false, parentCredentials: true, recursiveSubmodules: true, reference: '', trackingSubmodules: false]
],
submoduleCfg: [],
userRemoteConfigs: [
[credentialsId: 'gitea-jenkins', url: 'https://git.minres.com/Firmware/Firmwares.git']
]
])
}
void checkout_develop() {
dir("bare-metal-bsp") {
withCredentials([usernamePassword(credentialsId: 'gitea-jenkins', usernameVariable: 'GIT_USERNAME', passwordVariable: 'GIT_PASSWORD')]) {
sh ("git pull origin develop")
}
}
//sh("cd bare-metal-bsp && git checkout develop")
}
void make_hello(board) {
sh("make -C hello-world/ BOARD=${board}")
sh("make -C hello-world/ clean")
}
pipeline {
agent { docker {
image 'ubuntu-riscv'
args '-v $HOME/.m2:/root/.m2'
}}
options {
// using the Timestamper plugin we can add timestamps to the console log
timestamps()
skipStagesAfterUnstable()
}
stages {
/*stage('checkout repo') { steps{ checkout_project()}}
stage('checkout develop') { steps{ checkout_develop()}}
stage('make iss') {steps { make_hello("iss")}}
stage('make hifive1') {steps { make_hello("hifive1")}}
stage('make TGC5L') {steps { make_hello("TGC5L")}}
stage('make rtl') {steps { make_hello("rtl")}}
stage('make ehrenberg') {steps { make_hello("ehrenberg")}}
stage('make tgc_vp') {steps { make_hello("tgc_vp")}}*/
stage('make hello-world') {
matrix {
axes {
axis{
name 'BOARD'
values 'iss', 'hifive1', 'TGCP', 'ehrenberg', 'rtl', 'tgc_vp'
}
}
stages {
stage('Force sequential') {
options {
lock("One Board at a time")
}
stages {
stage("make") {
steps {
make_hello("${BOARD}")
}
}
}
}
}
}
}
}
post {
failure {
sh("make -C hello-world/ clean")
}
}
}

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@ -1,25 +1,2 @@
# MINRES Firmware Repository
## Structure
This repository comes with several executables ready to be built, such as `hello-world` or `coremark` and `dhrystone` in the `benchmark` directory.
Creating the executables in the easiest way possible is done by calling `make`in the corresponding directory.
# Firmware
## Prerequisite
This repository requires `riscv64-unknown-elf-gcc` to be located in `$PATH`.
## How to Use
When compiling executables, the target platform needs to be specified using the 'BOARD' variable. When compiling for the TGC5C for example, use `make BOARD=tgc_vp`, when compiling for RTL `make BOARD=rtl`. The default value for the Board variable is 'iss'.
The arch can be set with the 'ISA' variable, the default value is 'imc'.
When compiling for the TGC5A VP for example, the call to create the correct binary is the following:
```
make BOARD=tgc_vp ISA=e
```
## Useful information
Using `bear -- <build-command>` will cause a compile_commands.json to be emitted. This allows using completion tools like clangd.
## Current Limitations
Currently, this repository only supports creation of 32-bit executables (Even when setting the `RISCV_ARCH` and `RISCV_ABI` manually).
Compiling for the 'e' extension / ISA together with any other extension (`ISA=emc` for example), requires setting the `RISCV_ABI=ilp32e` explicitly.
When switching ABI or ARCH ensure that object files in the corresponding 'env' dir in the 'bare-metal-bsp' submodule are removed, so they get created with the appropriate flags (namely the 'init.o' file).

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Subproject commit 87dc0ec2304adcb94a25b397a357aadae1304867

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*.o
*.elf
*.log
/coremark.*

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TARGET := coremark
ISA?=imc
ITERATIONS?=600 # 300 for TGC
ASM_SRCS :=
C_SRCS := core_list_join.c core_main.c core_matrix.c core_state.c core_util.c core_portme.c ee_printf.c
HEADERS := cm/coremark.h
vpath %.c cm
BOARD?=iss
LINK_TARGET=link
RISCV_ARCH:=rv32$(ISA)
ifeq ($(ISA),e)
RISCV_ABI:=ilp32e
else
RISCV_ABI:=ilp32
endif
PORT_CFLAGS = -DPERFORMANCE_RUN=1 -DCLOCKS_PER_SEC=10000000 -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast
PORT_CFLAGS+= -g -O3 -fno-common -funroll-loops -finline-functions -falign-functions=16 -falign-jumps=4 -falign-loops=4 -finline-limit=1000 -fno-if-conversion2 -fselective-scheduling -fno-crossjumping -freorder-blocks-and-partition
FLAGS_STR = "$(PORT_CFLAGS) $(XCFLAGS) $(XLFLAGS) $(LFLAGS_END)"
CFLAGS = $(PORT_CFLAGS) -I. -Icm -DFLAGS_STR=\"$(FLAGS_STR)\"
CFLAGS += -DITERATIONS=$(ITERATIONS)
LDFLAGS := -g -Wl,--wrap=scanf -Wl,--wrap=printf -Wl,--wrap=exit -lgcc -lm
TOOL_DIR=$(dir $(compiler))
BSP_BASE = ../../bare-metal-bsp
include $(BSP_BASE)/env/common-gcc.mk

@ -1 +0,0 @@
Subproject commit d5fad6bd094899101a4e5fd53af7298160ced6ab

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/*
Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Original Author: Shay Gal-on
*/
#include "coremark.h"
#include "core_portme.h"
//Read cycle CSR
unsigned long long _read_cycle()
{
unsigned long long result;
unsigned long lower;
unsigned long upper1;
unsigned long upper2;
asm volatile (
"repeat_cycle_%=: csrr %0, cycleh;\n"
" csrr %1, cycle;\n"
" csrr %2, cycleh;\n"
" bne %0, %2, repeat_cycle_%=;\n"
: "=r" (upper1),"=r" (lower),"=r" (upper2) // Outputs : temp variable for load result
:
:
);
*(unsigned long *)(&result) = lower;
*((unsigned long *)(&result)+1) = upper1;
return result;
}
volatile int tohost;
volatile int fromhost;
void exit(int n){
tohost = 0x1;
for (;;);
}
void __libc_init_array (void) {
/*
size_t count;
size_t i;
count = __preinit_array_end - __preinit_array_start;
for (i = 0; i < count; i++)
__preinit_array_start[i] ();
#ifdef HAVE_INIT_FINI
_init ();
#endif
count = __init_array_end - __init_array_start;
for (i = 0; i < count; i++)
__init_array_start[i] ();
*/
}
#if VALIDATION_RUN
volatile ee_s32 seed1_volatile = 0x3415;
volatile ee_s32 seed2_volatile = 0x3415;
volatile ee_s32 seed3_volatile = 0x66;
#endif
#if PERFORMANCE_RUN
volatile ee_s32 seed1_volatile = 0x0;
volatile ee_s32 seed2_volatile = 0x0;
volatile ee_s32 seed3_volatile = 0x66;
#endif
#if PROFILE_RUN
volatile ee_s32 seed1_volatile = 0x8;
volatile ee_s32 seed2_volatile = 0x8;
volatile ee_s32 seed3_volatile = 0x8;
#endif
volatile ee_s32 seed4_volatile = ITERATIONS;
volatile ee_s32 seed5_volatile = 0;
/* Porting : Timing functions
How to capture time and convert to seconds must be ported to whatever is
supported by the platform. e.g. Read value from on board RTC, read value from
cpu clock cycles performance counter etc. Sample implementation for standard
time.h and windows.h definitions included.
*/
CORETIMETYPE
barebones_clock()
{
return (CORETIMETYPE)_read_cycle();
}
/* Define : TIMER_RES_DIVIDER
Divider to trade off timer resolution and total time that can be
measured.
Use lower values to increase resolution, but make sure that overflow
does not occur. If there are issues with the return value overflowing,
increase this value.
*/
#define GETMYTIME(_t) (*_t = barebones_clock())
#define MYTIMEDIFF(fin, ini) ((fin) - (ini))
#define TIMER_RES_DIVIDER 1
#define SAMPLE_TIME_IMPLEMENTATION 1
#define EE_TICKS_PER_SEC (CLOCKS_PER_SEC / TIMER_RES_DIVIDER)
/** Define Host specific (POSIX), or target specific global time variables. */
static CORETIMETYPE start_time_val, stop_time_val;
/* Function : start_time
This function will be called right before starting the timed portion of
the benchmark.
Implementation may be capturing a system timer (as implemented in the
example code) or zeroing some system parameters - e.g. setting the cpu clocks
cycles to 0.
*/
void
start_time(void)
{
GETMYTIME(&start_time_val);
}
/* Function : stop_time
This function will be called right after ending the timed portion of the
benchmark.
Implementation may be capturing a system timer (as implemented in the
example code) or other system parameters - e.g. reading the current value of
cpu cycles counter.
*/
void
stop_time(void)
{
GETMYTIME(&stop_time_val);
}
/* Function : get_time
Return an abstract "ticks" number that signifies time on the system.
Actual value returned may be cpu cycles, milliseconds or any other
value, as long as it can be converted to seconds by <time_in_secs>. This
methodology is taken to accomodate any hardware or simulated platform. The
sample implementation returns millisecs by default, and the resolution is
controlled by <TIMER_RES_DIVIDER>
*/
CORE_TICKS
get_time(void)
{
CORE_TICKS elapsed
= (CORE_TICKS)(MYTIMEDIFF(stop_time_val, start_time_val));
return elapsed;
}
/* Function : time_in_secs
Convert the value returned by get_time to seconds.
The <secs_ret> type is used to accomodate systems with no support for
floating point. Default implementation implemented by the EE_TICKS_PER_SEC
macro above.
*/
secs_ret
time_in_secs(CORE_TICKS ticks)
{
secs_ret retval = ((secs_ret)ticks) / (secs_ret)EE_TICKS_PER_SEC;
return retval;
}
ee_u32 default_num_contexts = 1;
/* Function : portable_init
Target specific initialization code
Test for some common mistakes.
*/
void
portable_init(core_portable *p, int *argc, char *argv[])
{
if (sizeof(ee_ptr_int) != sizeof(ee_u8 *))
{
ee_printf(
"ERROR! Please define ee_ptr_int to a type that holds a "
"pointer!\n");
}
if (sizeof(ee_u32) != 4)
{
ee_printf("ERROR! Please define ee_u32 to a 32b unsigned type!\n");
}
p->portable_id = 1;
ee_printf("portable_init finished.\n");
}
/* Function : portable_fini
Target specific final code
*/
void
portable_fini(core_portable *p)
{
p->portable_id = 0;
}

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/*
Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Original Author: Shay Gal-on
*/
/* Topic : Description
This file contains configuration constants required to execute on
different platforms
*/
#ifndef CORE_PORTME_H
#define CORE_PORTME_H
/************************/
/* Data types and settings */
/************************/
/* Configuration : HAS_FLOAT
Define to 1 if the platform supports floating point.
*/
#ifndef HAS_FLOAT
#define HAS_FLOAT 0
#endif
/* Configuration : HAS_TIME_H
Define to 1 if platform has the time.h header file,
and implementation of functions thereof.
*/
#ifndef HAS_TIME_H
#define HAS_TIME_H 0
#endif
/* Configuration : USE_CLOCK
Define to 1 if platform has the time.h header file,
and implementation of functions thereof.
*/
#ifndef USE_CLOCK
#define USE_CLOCK 0
#endif
/* Configuration : HAS_STDIO
Define to 1 if the platform has stdio.h.
*/
#ifndef HAS_STDIO
#define HAS_STDIO 0
#endif
/* Configuration : HAS_PRINTF
Define to 1 if the platform has stdio.h and implements the printf
function.
*/
#ifndef HAS_PRINTF
#define HAS_PRINTF 0
#endif
/* Definitions : COMPILER_VERSION, COMPILER_FLAGS, MEM_LOCATION
Initialize these strings per platform
*/
#ifndef COMPILER_VERSION
#ifdef __GNUC__
#define COMPILER_VERSION "GCC"__VERSION__
#else
#define COMPILER_VERSION "Please put compiler version here (e.g. gcc 4.1)"
#endif
#endif
#ifndef COMPILER_FLAGS
#define COMPILER_FLAGS \
FLAGS_STR /* "Please put compiler flags here (e.g. -o3)" */
#endif
#ifndef MEM_LOCATION
#define MEM_LOCATION "STACK"
#endif
/* Data Types :
To avoid compiler issues, define the data types that need ot be used for
8b, 16b and 32b in <core_portme.h>.
*Imprtant* :
ee_ptr_int needs to be the data type used to hold pointers, otherwise
coremark may fail!!!
*/
typedef signed short ee_s16;
typedef unsigned short ee_u16;
typedef signed int ee_s32;
typedef double ee_f32;
typedef unsigned char ee_u8;
typedef unsigned int ee_u32;
typedef ee_u32 ee_ptr_int;
typedef ee_u32 ee_size_t;
#define NULL ((void *)0)
/* align_mem :
This macro is used to align an offset to point to a 32b value. It is
used in the Matrix algorithm to initialize the input memory blocks.
*/
#define align_mem(x) (void *)(4 + (((ee_ptr_int)(x)-1) & ~3))
/* Configuration : CORE_TICKS
Define type of return from the timing functions.
*/
#define CORETIMETYPE ee_u32
typedef ee_u32 CORE_TICKS;
/* Configuration : SEED_METHOD
Defines method to get seed values that cannot be computed at compile
time.
Valid values :
SEED_ARG - from command line.
SEED_FUNC - from a system function.
SEED_VOLATILE - from volatile variables.
*/
#ifndef SEED_METHOD
#define SEED_METHOD SEED_VOLATILE
#endif
/* Configuration : MEM_METHOD
Defines method to get a block of memry.
Valid values :
MEM_MALLOC - for platforms that implement malloc and have malloc.h.
MEM_STATIC - to use a static memory array.
MEM_STACK - to allocate the data block on the stack (NYI).
*/
#ifndef MEM_METHOD
#define MEM_METHOD MEM_STACK
#endif
/* Configuration : MULTITHREAD
Define for parallel execution
Valid values :
1 - only one context (default).
N>1 - will execute N copies in parallel.
Note :
If this flag is defined to more then 1, an implementation for launching
parallel contexts must be defined.
Two sample implementations are provided. Use <USE_PTHREAD> or <USE_FORK>
to enable them.
It is valid to have a different implementation of <core_start_parallel>
and <core_end_parallel> in <core_portme.c>, to fit a particular architecture.
*/
#ifndef MULTITHREAD
#define MULTITHREAD 1
#define USE_PTHREAD 0
#define USE_FORK 0
#define USE_SOCKET 0
#endif
/* Configuration : MAIN_HAS_NOARGC
Needed if platform does not support getting arguments to main.
Valid values :
0 - argc/argv to main is supported
1 - argc/argv to main is not supported
Note :
This flag only matters if MULTITHREAD has been defined to a value
greater then 1.
*/
#ifndef MAIN_HAS_NOARGC
#define MAIN_HAS_NOARGC 0
#endif
/* Configuration : MAIN_HAS_NORETURN
Needed if platform does not support returning a value from main.
Valid values :
0 - main returns an int, and return value will be 0.
1 - platform does not support returning a value from main
*/
#ifndef MAIN_HAS_NORETURN
#define MAIN_HAS_NORETURN 0
#endif
/* Variable : default_num_contexts
Not used for this simple port, must cintain the value 1.
*/
extern ee_u32 default_num_contexts;
typedef struct CORE_PORTABLE_S
{
ee_u8 portable_id;
} core_portable;
/* target specific init/fini */
void portable_init(core_portable *p, int *argc, char *argv[]);
void portable_fini(core_portable *p);
#if !defined(PROFILE_RUN) && !defined(PERFORMANCE_RUN) \
&& !defined(VALIDATION_RUN)
#if (TOTAL_DATA_SIZE == 1200)
#define PROFILE_RUN 1
#elif (TOTAL_DATA_SIZE == 2000)
#define PERFORMANCE_RUN 1
#else
#define VALIDATION_RUN 1
#endif
#endif
int ee_printf(const char *fmt, ...);
#endif /* CORE_PORTME_H */

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/*
Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include <math.h>
#define CVTBUFSIZE 80
static char CVTBUF[CVTBUFSIZE];
static char *
cvt(double arg, int ndigits, int *decpt, int *sign, char *buf, int eflag)
{
int r2;
double fi, fj;
char * p, *p1;
if (ndigits < 0)
ndigits = 0;
if (ndigits >= CVTBUFSIZE - 1)
ndigits = CVTBUFSIZE - 2;
r2 = 0;
*sign = 0;
p = &buf[0];
if (arg < 0)
{
*sign = 1;
arg = -arg;
}
arg = modf(arg, &fi);
p1 = &buf[CVTBUFSIZE];
if (fi != 0)
{
p1 = &buf[CVTBUFSIZE];
while (fi != 0)
{
fj = modf(fi / 10, &fi);
*--p1 = (int)((fj + .03) * 10) + '0';
r2++;
}
while (p1 < &buf[CVTBUFSIZE])
*p++ = *p1++;
}
else if (arg > 0)
{
while ((fj = arg * 10) < 1)
{
arg = fj;
r2--;
}
}
p1 = &buf[ndigits];
if (eflag == 0)
p1 += r2;
*decpt = r2;
if (p1 < &buf[0])
{
buf[0] = '\0';
return buf;
}
while (p <= p1 && p < &buf[CVTBUFSIZE])
{
arg *= 10;
arg = modf(arg, &fj);
*p++ = (int)fj + '0';
}
if (p1 >= &buf[CVTBUFSIZE])
{
buf[CVTBUFSIZE - 1] = '\0';
return buf;
}
p = p1;
*p1 += 5;
while (*p1 > '9')
{
*p1 = '0';
if (p1 > buf)
++*--p1;
else
{
*p1 = '1';
(*decpt)++;
if (eflag == 0)
{
if (p > buf)
*p = '0';
p++;
}
}
}
*p = '\0';
return buf;
}
char *
ecvt(double arg, int ndigits, int *decpt, int *sign)
{
return cvt(arg, ndigits, decpt, sign, CVTBUF, 1);
}
char *
ecvtbuf(double arg, int ndigits, int *decpt, int *sign, char *buf)
{
return cvt(arg, ndigits, decpt, sign, buf, 1);
}
char *
fcvt(double arg, int ndigits, int *decpt, int *sign)
{
return cvt(arg, ndigits, decpt, sign, CVTBUF, 0);
}
char *
fcvtbuf(double arg, int ndigits, int *decpt, int *sign, char *buf)
{
return cvt(arg, ndigits, decpt, sign, buf, 0);
}

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/*
Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include <coremark.h>
#include <stdarg.h>
#define ZEROPAD (1 << 0) /* Pad with zero */
#define SIGN (1 << 1) /* Unsigned/signed long */
#define PLUS (1 << 2) /* Show plus */
#define SPACE (1 << 3) /* Spacer */
#define LEFT (1 << 4) /* Left justified */
#define HEX_PREP (1 << 5) /* 0x */
#define UPPERCASE (1 << 6) /* 'ABCDEF' */
#define is_digit(c) ((c) >= '0' && (c) <= '9')
static char * digits = "0123456789abcdefghijklmnopqrstuvwxyz";
static char * upper_digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
static ee_size_t strnlen(const char *s, ee_size_t count);
static ee_size_t
strnlen(const char *s, ee_size_t count)
{
const char *sc;
for (sc = s; *sc != '\0' && count--; ++sc)
;
return sc - s;
}
static int
skip_atoi(const char **s)
{
int i = 0;
while (is_digit(**s))
i = i * 10 + *((*s)++) - '0';
return i;
}
static char *
number(char *str, long num, int base, int size, int precision, int type)
{
char c, sign, tmp[66];
char *dig = digits;
int i;
if (type & UPPERCASE)
dig = upper_digits;
if (type & LEFT)
type &= ~ZEROPAD;
if (base < 2 || base > 36)
return 0;
c = (type & ZEROPAD) ? '0' : ' ';
sign = 0;
if (type & SIGN)
{
if (num < 0)
{
sign = '-';
num = -num;
size--;
}
else if (type & PLUS)
{
sign = '+';
size--;
}
else if (type & SPACE)
{
sign = ' ';
size--;
}
}
if (type & HEX_PREP)
{
if (base == 16)
size -= 2;
else if (base == 8)
size--;
}
i = 0;
if (num == 0)
tmp[i++] = '0';
else
{
while (num != 0)
{
tmp[i++] = dig[((unsigned long)num) % (unsigned)base];
num = ((unsigned long)num) / (unsigned)base;
}
}
if (i > precision)
precision = i;
size -= precision;
if (!(type & (ZEROPAD | LEFT)))
while (size-- > 0)
*str++ = ' ';
if (sign)
*str++ = sign;
if (type & HEX_PREP)
{
if (base == 8)
*str++ = '0';
else if (base == 16)
{
*str++ = '0';
*str++ = digits[33];
}
}
if (!(type & LEFT))
while (size-- > 0)
*str++ = c;
while (i < precision--)
*str++ = '0';
while (i-- > 0)
*str++ = tmp[i];
while (size-- > 0)
*str++ = ' ';
return str;
}
static char *
eaddr(char *str, unsigned char *addr, int size, int precision, int type)
{
char tmp[24];
char *dig = digits;
int i, len;
if (type & UPPERCASE)
dig = upper_digits;
len = 0;
for (i = 0; i < 6; i++)
{
if (i != 0)
tmp[len++] = ':';
tmp[len++] = dig[addr[i] >> 4];
tmp[len++] = dig[addr[i] & 0x0F];
}
if (!(type & LEFT))
while (len < size--)
*str++ = ' ';
for (i = 0; i < len; ++i)
*str++ = tmp[i];
while (len < size--)
*str++ = ' ';
return str;
}
static char *
iaddr(char *str, unsigned char *addr, int size, int precision, int type)
{
char tmp[24];
int i, n, len;
len = 0;
for (i = 0; i < 4; i++)
{
if (i != 0)
tmp[len++] = '.';
n = addr[i];
if (n == 0)
tmp[len++] = digits[0];
else
{
if (n >= 100)
{
tmp[len++] = digits[n / 100];
n = n % 100;
tmp[len++] = digits[n / 10];
n = n % 10;
}
else if (n >= 10)
{
tmp[len++] = digits[n / 10];
n = n % 10;
}
tmp[len++] = digits[n];
}
}
if (!(type & LEFT))
while (len < size--)
*str++ = ' ';
for (i = 0; i < len; ++i)
*str++ = tmp[i];
while (len < size--)
*str++ = ' ';
return str;
}
#if HAS_FLOAT
char * ecvtbuf(double arg, int ndigits, int *decpt, int *sign, char *buf);
char * fcvtbuf(double arg, int ndigits, int *decpt, int *sign, char *buf);
static void ee_bufcpy(char *d, char *s, int count);
void
ee_bufcpy(char *pd, char *ps, int count)
{
char *pe = ps + count;
while (ps != pe)
*pd++ = *ps++;
}
static void
parse_float(double value, char *buffer, char fmt, int precision)
{
int decpt, sign, exp, pos;
char *digits = NULL;
char cvtbuf[80];
int capexp = 0;
int magnitude;
if (fmt == 'G' || fmt == 'E')
{
capexp = 1;
fmt += 'a' - 'A';
}
if (fmt == 'g')
{
digits = ecvtbuf(value, precision, &decpt, &sign, cvtbuf);
magnitude = decpt - 1;
if (magnitude < -4 || magnitude > precision - 1)
{
fmt = 'e';
precision -= 1;
}
else
{
fmt = 'f';
precision -= decpt;
}
}
if (fmt == 'e')
{
digits = ecvtbuf(value, precision + 1, &decpt, &sign, cvtbuf);
if (sign)
*buffer++ = '-';
*buffer++ = *digits;
if (precision > 0)
*buffer++ = '.';
ee_bufcpy(buffer, digits + 1, precision);
buffer += precision;
*buffer++ = capexp ? 'E' : 'e';
if (decpt == 0)
{
if (value == 0.0)
exp = 0;
else
exp = -1;
}
else
exp = decpt - 1;
if (exp < 0)
{
*buffer++ = '-';
exp = -exp;
}
else
*buffer++ = '+';
buffer[2] = (exp % 10) + '0';
exp = exp / 10;
buffer[1] = (exp % 10) + '0';
exp = exp / 10;
buffer[0] = (exp % 10) + '0';
buffer += 3;
}
else if (fmt == 'f')
{
digits = fcvtbuf(value, precision, &decpt, &sign, cvtbuf);
if (sign)
*buffer++ = '-';
if (*digits)
{
if (decpt <= 0)
{
*buffer++ = '0';
*buffer++ = '.';
for (pos = 0; pos < -decpt; pos++)
*buffer++ = '0';
while (*digits)
*buffer++ = *digits++;
}
else
{
pos = 0;
while (*digits)
{
if (pos++ == decpt)
*buffer++ = '.';
*buffer++ = *digits++;
}
}
}
else
{
*buffer++ = '0';
if (precision > 0)
{
*buffer++ = '.';
for (pos = 0; pos < precision; pos++)
*buffer++ = '0';
}
}
}
*buffer = '\0';
}
static void
decimal_point(char *buffer)
{
while (*buffer)
{
if (*buffer == '.')
return;
if (*buffer == 'e' || *buffer == 'E')
break;
buffer++;
}
if (*buffer)
{
int n = strnlen(buffer, 256);
while (n > 0)
{
buffer[n + 1] = buffer[n];
n--;
}
*buffer = '.';
}
else
{
*buffer++ = '.';
*buffer = '\0';
}
}
static void
cropzeros(char *buffer)
{
char *stop;
while (*buffer && *buffer != '.')
buffer++;
if (*buffer++)
{
while (*buffer && *buffer != 'e' && *buffer != 'E')
buffer++;
stop = buffer--;
while (*buffer == '0')
buffer--;
if (*buffer == '.')
buffer--;
while (buffer != stop)
*++buffer = 0;
}
}
static char *
flt(char *str, double num, int size, int precision, char fmt, int flags)
{
char tmp[80];
char c, sign;
int n, i;
// Left align means no zero padding
if (flags & LEFT)
flags &= ~ZEROPAD;
// Determine padding and sign char
c = (flags & ZEROPAD) ? '0' : ' ';
sign = 0;
if (flags & SIGN)
{
if (num < 0.0)
{
sign = '-';
num = -num;
size--;
}
else if (flags & PLUS)
{
sign = '+';
size--;
}
else if (flags & SPACE)
{
sign = ' ';
size--;
}
}
// Compute the precision value
if (precision < 0)
precision = 6; // Default precision: 6
// Convert floating point number to text
parse_float(num, tmp, fmt, precision);
if ((flags & HEX_PREP) && precision == 0)
decimal_point(tmp);
if (fmt == 'g' && !(flags & HEX_PREP))
cropzeros(tmp);
n = strnlen(tmp, 256);
// Output number with alignment and padding
size -= n;
if (!(flags & (ZEROPAD | LEFT)))
while (size-- > 0)
*str++ = ' ';
if (sign)
*str++ = sign;
if (!(flags & LEFT))
while (size-- > 0)
*str++ = c;
for (i = 0; i < n; i++)
*str++ = tmp[i];
while (size-- > 0)
*str++ = ' ';
return str;
}
#endif
static int
ee_vsprintf(char *buf, const char *fmt, va_list args)
{
int len;
unsigned long num;
int i, base;
char * str;
char * s;
int flags; // Flags to number()
int field_width; // Width of output field
int precision; // Min. # of digits for integers; max number of chars for
// from string
int qualifier; // 'h', 'l', or 'L' for integer fields
for (str = buf; *fmt; fmt++)
{
if (*fmt != '%')
{
*str++ = *fmt;
continue;
}
// Process flags
flags = 0;
repeat:
fmt++; // This also skips first '%'
switch (*fmt)
{
case '-':
flags |= LEFT;
goto repeat;
case '+':
flags |= PLUS;
goto repeat;
case ' ':
flags |= SPACE;
goto repeat;
case '#':
flags |= HEX_PREP;
goto repeat;
case '0':
flags |= ZEROPAD;
goto repeat;
}
// Get field width
field_width = -1;
if (is_digit(*fmt))
field_width = skip_atoi(&fmt);
else if (*fmt == '*')
{
fmt++;
field_width = va_arg(args, int);
if (field_width < 0)
{
field_width = -field_width;
flags |= LEFT;
}
}
// Get the precision
precision = -1;
if (*fmt == '.')
{
++fmt;
if (is_digit(*fmt))
precision = skip_atoi(&fmt);
else if (*fmt == '*')
{
++fmt;
precision = va_arg(args, int);
}
if (precision < 0)
precision = 0;
}
// Get the conversion qualifier
qualifier = -1;
if (*fmt == 'l' || *fmt == 'L')
{
qualifier = *fmt;
fmt++;
}
// Default base
base = 10;
switch (*fmt)
{
case 'c':
if (!(flags & LEFT))
while (--field_width > 0)
*str++ = ' ';
*str++ = (unsigned char)va_arg(args, int);
while (--field_width > 0)
*str++ = ' ';
continue;
case 's':
s = va_arg(args, char *);
if (!s)
s = "<NULL>";
len = strnlen(s, precision);
if (!(flags & LEFT))
while (len < field_width--)
*str++ = ' ';
for (i = 0; i < len; ++i)
*str++ = *s++;
while (len < field_width--)
*str++ = ' ';
continue;
case 'p':
if (field_width == -1)
{
field_width = 2 * sizeof(void *);
flags |= ZEROPAD;
}
str = number(str,
(unsigned long)va_arg(args, void *),
16,
field_width,
precision,
flags);
continue;
case 'A':
flags |= UPPERCASE;
case 'a':
if (qualifier == 'l')
str = eaddr(str,
va_arg(args, unsigned char *),
field_width,
precision,
flags);
else
str = iaddr(str,
va_arg(args, unsigned char *),
field_width,
precision,
flags);
continue;
// Integer number formats - set up the flags and "break"
case 'o':
base = 8;
break;
case 'X':
flags |= UPPERCASE;
case 'x':
base = 16;
break;
case 'd':
case 'i':
flags |= SIGN;
case 'u':
break;
#if HAS_FLOAT
case 'f':
str = flt(str,
va_arg(args, double),
field_width,
precision,
*fmt,
flags | SIGN);
continue;
#endif
default:
if (*fmt != '%')
*str++ = '%';
if (*fmt)
*str++ = *fmt;
else
--fmt;
continue;
}
if (qualifier == 'l')
num = va_arg(args, unsigned long);
else if (flags & SIGN)
num = va_arg(args, int);
else
num = va_arg(args, unsigned int);
str = number(str, num, base, field_width, precision, flags);
}
*str = '\0';
return str - buf;
}
#include <platform.h>
void
uart_send_char(char c)
{
#if defined(BOARD_ehrenberg)
while (get_uart_rx_tx_reg_tx_free(uart)==0) ;
uart_write(uart, c);
if (c == '\n') {
while (get_uart_rx_tx_reg_tx_free(uart)==0) ;
uart_write(uart, '\r');
}
#elif defined(BOARD_iss)
*((uint32_t*) 0xFFFF0000) = c;
#else
while (UART0_REG(UART_REG_TXFIFO) & 0x80000000) ;
UART0_REG(UART_REG_TXFIFO) = c;
if (c == '\n') {
while (UART0_REG(UART_REG_TXFIFO) & 0x80000000) ;
UART0_REG(UART_REG_TXFIFO) = '\r';
}
#endif
}
int
ee_printf(const char *fmt, ...)
{
char buf[1024], *p;
va_list args;
int n = 0;
va_start(args, fmt);
ee_vsprintf(buf, fmt, args);
va_end(args);
p = buf;
while (*p)
{
uart_send_char(*p);
n++;
p++;
}
return n;
}

View File

@ -1,2 +0,0 @@
dhrystone
/dhrystone.dis

View File

@ -1,24 +0,0 @@
TARGET := dhrystone
ISA?=imc
ITERATIONS?=50000 # 20000 for TGC
ASM_SRCS :=
C_SRCS := dhry_stubs.c dhry_1.c dhry_2.c
HEADERS := dhry.h
BOARD?=iss
LINK_TARGET=link
RISCV_ARCH:=rv32$(ISA)
ifeq ($(ISA),e)
RISCV_ABI:=ilp32e
else
RISCV_ABI:=ilp32
endif
# '-lgcc -lm' are needed to add softfloat routines
CFLAGS := -g -O3 -DITERATIONS=$(ITERATIONS) -DHZ=32768 -DTIME -DNO_INIT -fno-inline -fno-builtin-printf -fno-common -Wno-implicit \
-funroll-loops -fpeel-loops -fgcse-sm -fgcse-las
TOOL_DIR=$(dir $(compiler))
BSP_BASE = ../../bare-metal-bsp
include $(BSP_BASE)/env/common-gcc.mk

168
demo_gpio/.cproject Normal file
View File

@ -0,0 +1,168 @@
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/Debug/

26
demo_gpio/.project Normal file
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255
demo_gpio/demo_gpio.c Normal file
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@ -0,0 +1,255 @@
// See LICENSE for license details.
#include <stdio.h>
#include <stdlib.h>
#include "platform.h"
#include <string.h>
#include "plic/plic_driver.h"
#include "encoding.h"
#include <unistd.h>
#include "stdatomic.h"
void reset_demo (void);
// Structures for registering different interrupt handlers
// for different parts of the application.
typedef void (*function_ptr_t) (void);
void no_interrupt_handler (void) {};
function_ptr_t g_ext_interrupt_handlers[PLIC_NUM_INTERRUPTS];
// Instance data for the PLIC.
plic_instance_t g_plic;
/*Entry Point for PLIC Interrupt Handler*/
void handle_m_ext_interrupt(){
plic_source int_num = PLIC_claim_interrupt(&g_plic);
if ((int_num >=1 ) && (int_num < PLIC_NUM_INTERRUPTS)) {
g_ext_interrupt_handlers[int_num]();
}
else {
exit(1 + (uintptr_t) int_num);
}
PLIC_complete_interrupt(&g_plic, int_num);
}
/*Entry Point for Machine Timer Interrupt Handler*/
void handle_m_time_interrupt(){
clear_csr(mie, MIP_MTIP);
// Reset the timer for 3s in the future.
// This also clears the existing timer interrupt.
volatile uint64_t * mtime = (uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME);
volatile uint64_t * mtimecmp = (uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
uint64_t now = *mtime;
uint64_t then = now + 2 * RTC_FREQ;
*mtimecmp = then;
// read the current value of the LEDS and invert them.
uint32_t leds = GPIO_REG(GPIO_OUTPUT_VAL);
GPIO_REG(GPIO_OUTPUT_VAL) ^= ((0x1 << RED_LED_OFFSET) |
(0x1 << GREEN_LED_OFFSET) |
(0x1 << BLUE_LED_OFFSET));
// Re-enable the timer interrupt.
set_csr(mie, MIP_MTIP);
}
const char * instructions_msg = " \
\n\
SIFIVE, INC.\n\
\n\
5555555555555555555555555\n\
5555 5555\n\
5555 5555\n\
5555 5555\n\
5555 5555555555555555555555\n\
5555 555555555555555555555555\n\
5555 5555\n\
5555 5555\n\
5555 5555\n\
5555555555555555555555555555 55555\n\
55555 555555555 55555\n\
55555 55555 55555\n\
55555 5 55555\n\
55555 55555\n\
55555 55555\n\
55555 55555\n\
55555 55555\n\
55555 55555\n\
555555555\n\
55555\n\
5\n\
\n\
SiFive E-Series Software Development Kit 'demo_gpio' program.\n\
Every 2 second, the Timer Interrupt will invert the LEDs.\n\
(Arty Dev Kit Only): Press Buttons 0, 1, 2 to Set the LEDs.\n\
Pin 19 (HiFive1) or A5 (Arty Dev Kit) is being bit-banged\n\
for GPIO speed demonstration.\n\
\n\
";
void print_instructions() {
write (STDOUT_FILENO, instructions_msg, strlen(instructions_msg));
}
#ifdef HAS_BOARD_BUTTONS
void button_0_handler(void) {
// Red LED on
GPIO_REG(GPIO_OUTPUT_VAL) |= (0x1 << RED_LED_OFFSET);
// Clear the GPIO Pending interrupt by writing 1.
GPIO_REG(GPIO_RISE_IP) = (0x1 << BUTTON_0_OFFSET);
};
void button_1_handler(void) {
// Green LED On
GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << GREEN_LED_OFFSET);
// Clear the GPIO Pending interrupt by writing 1.
GPIO_REG(GPIO_RISE_IP) = (0x1 << BUTTON_1_OFFSET);
};
void button_2_handler(void) {
// Blue LED On
GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << BLUE_LED_OFFSET);
GPIO_REG(GPIO_RISE_IP) = (0x1 << BUTTON_2_OFFSET);
};
#endif
void reset_demo (){
// Disable the machine & timer interrupts until setup is done.
clear_csr(mie, MIP_MEIP);
clear_csr(mie, MIP_MTIP);
for (int ii = 0; ii < PLIC_NUM_INTERRUPTS; ii ++){
g_ext_interrupt_handlers[ii] = no_interrupt_handler;
}
#ifdef HAS_BOARD_BUTTONS
g_ext_interrupt_handlers[INT_DEVICE_BUTTON_0] = button_0_handler;
g_ext_interrupt_handlers[INT_DEVICE_BUTTON_1] = button_1_handler;
g_ext_interrupt_handlers[INT_DEVICE_BUTTON_2] = button_2_handler;
#endif
print_instructions();
#ifdef HAS_BOARD_BUTTONS
// Have to enable the interrupt both at the GPIO level,
// and at the PLIC level.
PLIC_enable_interrupt (&g_plic, INT_DEVICE_BUTTON_0);
PLIC_enable_interrupt (&g_plic, INT_DEVICE_BUTTON_1);
PLIC_enable_interrupt (&g_plic, INT_DEVICE_BUTTON_2);
// Priority must be set > 0 to trigger the interrupt.
PLIC_set_priority(&g_plic, INT_DEVICE_BUTTON_0, 1);
PLIC_set_priority(&g_plic, INT_DEVICE_BUTTON_1, 1);
PLIC_set_priority(&g_plic, INT_DEVICE_BUTTON_2, 1);
GPIO_REG(GPIO_RISE_IE) |= (1 << BUTTON_0_OFFSET);
GPIO_REG(GPIO_RISE_IE) |= (1 << BUTTON_1_OFFSET);
GPIO_REG(GPIO_RISE_IE) |= (1 << BUTTON_2_OFFSET);
#endif
// Set the machine timer to go off in 3 seconds.
// The
volatile uint64_t * mtime = (uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIME);
volatile uint64_t * mtimecmp = (uint64_t*) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
uint64_t now = *mtime;
uint64_t then = now + 2*RTC_FREQ;
*mtimecmp = then;
// Enable the Machine-External bit in MIE
set_csr(mie, MIP_MEIP);
// Enable the Machine-Timer bit in MIE
set_csr(mie, MIP_MTIP);
// Enable interrupts in general.
set_csr(mstatus, MSTATUS_MIE);
}
int main(int argc, char **argv)
{
// Set up the GPIOs such that the LED GPIO
// can be used as both Inputs and Outputs.
#ifdef HAS_BOARD_BUTTONS
GPIO_REG(GPIO_OUTPUT_EN) &= ~((0x1 << BUTTON_0_OFFSET) | (0x1 << BUTTON_1_OFFSET) | (0x1 << BUTTON_2_OFFSET));
GPIO_REG(GPIO_PULLUP_EN) &= ~((0x1 << BUTTON_0_OFFSET) | (0x1 << BUTTON_1_OFFSET) | (0x1 << BUTTON_2_OFFSET));
GPIO_REG(GPIO_INPUT_EN) |= ((0x1 << BUTTON_0_OFFSET) | (0x1 << BUTTON_1_OFFSET) | (0x1 << BUTTON_2_OFFSET));
#endif
GPIO_REG(GPIO_INPUT_EN) &= ~((0x1<< RED_LED_OFFSET) | (0x1<< GREEN_LED_OFFSET) | (0x1 << BLUE_LED_OFFSET)) ;
GPIO_REG(GPIO_OUTPUT_EN) |= ((0x1<< RED_LED_OFFSET)| (0x1<< GREEN_LED_OFFSET) | (0x1 << BLUE_LED_OFFSET)) ;
GPIO_REG(GPIO_OUTPUT_VAL) |= (0x1 << BLUE_LED_OFFSET) ;
GPIO_REG(GPIO_OUTPUT_VAL) &= ~((0x1<< RED_LED_OFFSET) | (0x1<< GREEN_LED_OFFSET)) ;
// For Bit-banging with Atomics demo.
uint32_t bitbang_mask = 0;
#ifdef _SIFIVE_HIFIVE1_H
bitbang_mask = (1 << PIN_19_OFFSET);
#else
#ifdef _SIFIVE_COREPLEXIP_ARTY_H
bitbang_mask = (0x1 << JA_0_OFFSET);
#endif
#endif
GPIO_REG(GPIO_OUTPUT_EN) |= bitbang_mask;
/**************************************************************************
* Set up the PLIC
*
*************************************************************************/
PLIC_init(&g_plic,
PLIC_CTRL_ADDR,
PLIC_NUM_INTERRUPTS,
PLIC_NUM_PRIORITIES);
reset_demo();
/**************************************************************************
* Demonstrate fast GPIO bit-banging.
* One can bang it faster than this if you know
* the entire OUTPUT_VAL that you want to write, but
* Atomics give a quick way to control a single bit.
*************************************************************************/
// For Bit-banging with Atomics demo.
uint32_t cnt=0;
while(cnt<200){
asm volatile ("wfi");
printf("Finished run#%u\n", ++cnt);
for(size_t i=0; i<100; ++i)
atomic_fetch_xor_explicit(&GPIO_REG(GPIO_OUTPUT_VAL), bitbang_mask, memory_order_relaxed);
}
return 0;
}

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@ -0,0 +1,34 @@
adapter_khz 10000
interface ftdi
ftdi_device_desc "Dual RS232-HS"
ftdi_vid_pid 0x0403 0x6010
ftdi_layout_init 0x0008 0x001b
ftdi_layout_signal nSRST -oe 0x0020 -data 0x0020
#Reset Stretcher logic on FE310 is ~1 second long
#This doesn't apply if you use
# ftdi_set_signal, but still good to document
#adapter_nsrst_delay 1500
set _CHIPNAME riscv
jtag newtap $_CHIPNAME cpu -irlen 5 -expected-id 0x10e31913
set _TARGETNAME $_CHIPNAME.cpu
target create $_TARGETNAME riscv -chain-position $_TARGETNAME
$_TARGETNAME configure -work-area-phys 0x80000000 -work-area-size 10000 -work-area-backup 1
flash bank onboard_spi_flash fespi 0x20000000 0 0 0 $_TARGETNAME
init
#reset -- This type of reset is not implemented yet
if {[ info exists pulse_srst]} {
ftdi_set_signal nSRST 0
ftdi_set_signal nSRST z
#Wait for the reset stretcher
#It will work without this, but
#will incur lots of delays for later commands.
sleep 1500
}
halt
flash protect 0 64 last off

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@ -14,7 +14,7 @@
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<folderInfo id="cdt.managedbuild.toolchain.gnu.cross.base.574338120.193230058" name="/" resourcePath="">
<toolChain id="cdt.managedbuild.toolchain.gnu.cross.base.1380433779" name="Cross GCC" superClass="cdt.managedbuild.toolchain.gnu.cross.base">
<option id="cdt.managedbuild.option.gnu.cross.prefix.1116043753" name="Prefix" superClass="cdt.managedbuild.option.gnu.cross.prefix"/>
@ -57,7 +57,6 @@
<buildTargets>
<target name="all" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>all</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
@ -65,27 +64,12 @@
</target>
<target name="clean" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>clean</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="all BOARD=tgc-vp" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>all BOARD=tgc-vp</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
<target name="all BOARD=iss" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
<buildCommand>make</buildCommand>
<buildArguments/>
<buildTarget>all BOARD=iss</buildTarget>
<stopOnError>true</stopOnError>
<useDefaultCommand>true</useDefaultCommand>
<runAllBuilders>true</runAllBuilders>
</target>
</buildTargets>
</storageModule>
</cproject>

1
dhrystone/.gitignore vendored Normal file
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@ -0,0 +1 @@
dhrystone

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@ -3,7 +3,7 @@
<name>dhrystone</name>
<comment></comment>
<projects>
<project>bare-metal-bsp</project>
<project>bsp</project>
</projects>
<buildSpec>
<buildCommand>

25
dhrystone/Makefile Normal file
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@ -0,0 +1,25 @@
TARGET := dhrystone
ASM_SRCS :=
C_SRCS := dhry_stubs.c dhry_printf.c
HEADERS := dhry.h
DHRY_SRCS := dhry_1.c dhry_2.c
DHRY_CFLAGS := -O2 -DTIME -DNO_INIT -fno-inline -fno-builtin-printf -Wno-implicit -march=rv32ima
XLEN ?= 32
CFLAGS := -g -Og -fno-common
LDFLAGS := -g -Wl,--wrap=scanf -Wl,--wrap=printf -Wl,--wrap=exit
DHRY_OBJS := $(patsubst %.c,%.o,$(DHRY_SRCS))
LINK_OBJS := $(DHRY_OBJS)
#BOARD = iss
BOARD=freedom-e300-hifive1
TOOL_DIR=/opt/shared/riscv/FreedomStudio/20180122/SiFive/riscv64-unknown-elf-gcc-20171231-x86_64-linux-centos6/bin
BSP_BASE = bsp
include $(BSP_BASE)/env/common.mk
$(DHRY_OBJS): %.o: %.c $(HEADERS)
$(CC) $(CFLAGS) $(DHRY_CFLAGS) -c -o $@ $<

60
dhrystone/bsp/env/common.mk vendored Normal file
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@ -0,0 +1,60 @@
# See LICENSE for license details.
ifndef _SIFIVE_MK_COMMON
_SIFIVE_MK_COMMON := # defined
.PHONY: all
all: $(TARGET)
include $(BSP_BASE)/libwrap/libwrap.mk
BOARD ?= freedom-e300-hifive1
ENV_DIR = $(BSP_BASE)/env
PLATFORM_DIR = $(ENV_DIR)/$(BOARD)
#TARGET_FLAVOR := -march=rv32imac -mabi=ilp32 -mcmodel=medany -msmall-data-limit=8 -x assembler-with-cpp
TARGET_FLAVOR := -march=rv32imac -mabi=ilp32
ASM_SRCS += $(ENV_DIR)/start.S
ASM_SRCS += $(ENV_DIR)/entry.S
C_SRCS += $(PLATFORM_DIR)/init.c
LINKER_SCRIPT := $(PLATFORM_DIR)/link.lds
INCLUDES += -I$(BSP_BASE)/include
INCLUDES += -I$(BSP_BASE)/drivers/
INCLUDES += -I$(ENV_DIR)
INCLUDES += -I$(PLATFORM_DIR)
TOOL_DIR ?= $(BSP_BASE)/../toolchain/bin
CC := $(TOOL_DIR)/riscv64-unknown-elf-gcc ${TARGET_FLAVOR}
AR := $(TOOL_DIR)/riscv64-unknown-elf-ar
LDFLAGS += -T $(LINKER_SCRIPT) -nostartfiles
LDFLAGS += -L$(ENV_DIR)
ASM_OBJS := $(ASM_SRCS:.S=.o)
C_OBJS := $(C_SRCS:.c=.o)
LINK_OBJS += $(ASM_OBJS) $(C_OBJS)
LINK_DEPS += $(LINKER_SCRIPT)
CLEAN_OBJS += $(TARGET) $(LINK_OBJS)
CFLAGS += -g
$(TARGET): $(LINK_OBJS) $(LINK_DEPS)
$(CC) $(CFLAGS) $(INCLUDES) $(LINK_OBJS) -o $@ $(LDFLAGS)
$(ASM_OBJS): %.o: %.S $(HEADERS)
$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
$(C_OBJS): %.o: %.c $(HEADERS)
$(CC) $(CFLAGS) $(INCLUDES) -include sys/cdefs.h -c -o $@ $<
.PHONY: clean
clean:
rm -f $(CLEAN_OBJS)
endif # _SIFIVE_MK_COMMON

97
dhrystone/bsp/env/entry.S vendored Normal file
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@ -0,0 +1,97 @@
// See LICENSE for license details
#ifndef ENTRY_S
#define ENTRY_S
#include "encoding.h"
#include "sifive/bits.h"
.section .text.entry
.align 2
.global trap_entry
trap_entry:
addi sp, sp, -32*REGBYTES
STORE x1, 1*REGBYTES(sp)
STORE x2, 2*REGBYTES(sp)
STORE x3, 3*REGBYTES(sp)
STORE x4, 4*REGBYTES(sp)
STORE x5, 5*REGBYTES(sp)
STORE x6, 6*REGBYTES(sp)
STORE x7, 7*REGBYTES(sp)
STORE x8, 8*REGBYTES(sp)
STORE x9, 9*REGBYTES(sp)
STORE x10, 10*REGBYTES(sp)
STORE x11, 11*REGBYTES(sp)
STORE x12, 12*REGBYTES(sp)
STORE x13, 13*REGBYTES(sp)
STORE x14, 14*REGBYTES(sp)
STORE x15, 15*REGBYTES(sp)
STORE x16, 16*REGBYTES(sp)
STORE x17, 17*REGBYTES(sp)
STORE x18, 18*REGBYTES(sp)
STORE x19, 19*REGBYTES(sp)
STORE x20, 20*REGBYTES(sp)
STORE x21, 21*REGBYTES(sp)
STORE x22, 22*REGBYTES(sp)
STORE x23, 23*REGBYTES(sp)
STORE x24, 24*REGBYTES(sp)
STORE x25, 25*REGBYTES(sp)
STORE x26, 26*REGBYTES(sp)
STORE x27, 27*REGBYTES(sp)
STORE x28, 28*REGBYTES(sp)
STORE x29, 29*REGBYTES(sp)
STORE x30, 30*REGBYTES(sp)
STORE x31, 31*REGBYTES(sp)
csrr a0, mcause
csrr a1, mepc
mv a2, sp
call handle_trap
csrw mepc, a0
# Remain in M-mode after mret
li t0, MSTATUS_MPP
csrs mstatus, t0
LOAD x1, 1*REGBYTES(sp)
LOAD x2, 2*REGBYTES(sp)
LOAD x3, 3*REGBYTES(sp)
LOAD x4, 4*REGBYTES(sp)
LOAD x5, 5*REGBYTES(sp)
LOAD x6, 6*REGBYTES(sp)
LOAD x7, 7*REGBYTES(sp)
LOAD x8, 8*REGBYTES(sp)
LOAD x9, 9*REGBYTES(sp)
LOAD x10, 10*REGBYTES(sp)
LOAD x11, 11*REGBYTES(sp)
LOAD x12, 12*REGBYTES(sp)
LOAD x13, 13*REGBYTES(sp)
LOAD x14, 14*REGBYTES(sp)
LOAD x15, 15*REGBYTES(sp)
LOAD x16, 16*REGBYTES(sp)
LOAD x17, 17*REGBYTES(sp)
LOAD x18, 18*REGBYTES(sp)
LOAD x19, 19*REGBYTES(sp)
LOAD x20, 20*REGBYTES(sp)
LOAD x21, 21*REGBYTES(sp)
LOAD x22, 22*REGBYTES(sp)
LOAD x23, 23*REGBYTES(sp)
LOAD x24, 24*REGBYTES(sp)
LOAD x25, 25*REGBYTES(sp)
LOAD x26, 26*REGBYTES(sp)
LOAD x27, 27*REGBYTES(sp)
LOAD x28, 28*REGBYTES(sp)
LOAD x29, 29*REGBYTES(sp)
LOAD x30, 30*REGBYTES(sp)
LOAD x31, 31*REGBYTES(sp)
addi sp, sp, 32*REGBYTES
mret
.weak handle_trap
handle_trap:
1:
j 1b
#endif

81
dhrystone/bsp/env/hifive1.h vendored Normal file
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@ -0,0 +1,81 @@
// See LICENSE for license details.
#ifndef _SIFIVE_HIFIVE1_H
#define _SIFIVE_HIFIVE1_H
#include <stdint.h>
/****************************************************************************
* GPIO Connections
*****************************************************************************/
// These are the GPIO bit offsets for the RGB LED on HiFive1 Board.
// These are also mapped to RGB LEDs on the Freedom E300 Arty
// FPGA
// Dev Kit.
#define RED_LED_OFFSET 22
#define GREEN_LED_OFFSET 19
#define BLUE_LED_OFFSET 21
// These are the GPIO bit offsets for the differen digital pins
// on the headers for both the HiFive1 Board and the Freedom E300 Arty FPGA Dev Kit.
#define PIN_0_OFFSET 16
#define PIN_1_OFFSET 17
#define PIN_2_OFFSET 18
#define PIN_3_OFFSET 19
#define PIN_4_OFFSET 20
#define PIN_5_OFFSET 21
#define PIN_6_OFFSET 22
#define PIN_7_OFFSET 23
#define PIN_8_OFFSET 0
#define PIN_9_OFFSET 1
#define PIN_10_OFFSET 2
#define PIN_11_OFFSET 3
#define PIN_12_OFFSET 4
#define PIN_13_OFFSET 5
//#define PIN_14_OFFSET 8 //This pin is not connected on either board.
#define PIN_15_OFFSET 9
#define PIN_16_OFFSET 10
#define PIN_17_OFFSET 11
#define PIN_18_OFFSET 12
#define PIN_19_OFFSET 13
// These are *PIN* numbers, not
// GPIO Offset Numbers.
#define PIN_SPI1_SCK (13u)
#define PIN_SPI1_MISO (12u)
#define PIN_SPI1_MOSI (11u)
#define PIN_SPI1_SS0 (10u)
#define PIN_SPI1_SS1 (14u)
#define PIN_SPI1_SS2 (15u)
#define PIN_SPI1_SS3 (16u)
#define SS_PIN_TO_CS_ID(x) \
((x==PIN_SPI1_SS0 ? 0 : \
(x==PIN_SPI1_SS1 ? 1 : \
(x==PIN_SPI1_SS2 ? 2 : \
(x==PIN_SPI1_SS3 ? 3 : \
-1)))))
// These buttons are present only on the Freedom E300 Arty Dev Kit.
#ifdef HAS_BOARD_BUTTONS
#define BUTTON_0_OFFSET 15
#define BUTTON_1_OFFSET 30
#define BUTTON_2_OFFSET 31
#define INT_DEVICE_BUTTON_0 (INT_GPIO_BASE + BUTTON_0_OFFSET)
#define INT_DEVICE_BUTTON_1 (INT_GPIO_BASE + BUTTON_1_OFFSET)
#define INT_DEVICE_BUTTON_2 (INT_GPIO_BASE + BUTTON_2_OFFSET)
#endif
#define HAS_HFXOSC 1
#define HAS_LFROSC_BYPASS 1
#define RTC_FREQ 32768
void write_hex(int fd, uint32_t hex);
#endif /* _SIFIVE_HIFIVE1_H */

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@ -0,0 +1,80 @@
// See LICENSE for license details.
#ifndef _SIFIVE_SPI_H
#define _SIFIVE_SPI_H
/* Register offsets */
#define SPI_REG_SCKDIV 0x00
#define SPI_REG_SCKMODE 0x04
#define SPI_REG_CSID 0x10
#define SPI_REG_CSDEF 0x14
#define SPI_REG_CSMODE 0x18
#define SPI_REG_DCSSCK 0x28
#define SPI_REG_DSCKCS 0x2a
#define SPI_REG_DINTERCS 0x2c
#define SPI_REG_DINTERXFR 0x2e
#define SPI_REG_FMT 0x40
#define SPI_REG_TXFIFO 0x48
#define SPI_REG_RXFIFO 0x4c
#define SPI_REG_TXCTRL 0x50
#define SPI_REG_RXCTRL 0x54
#define SPI_REG_FCTRL 0x60
#define SPI_REG_FFMT 0x64
#define SPI_REG_IE 0x70
#define SPI_REG_IP 0x74
/* Fields */
#define SPI_SCK_POL 0x1
#define SPI_SCK_PHA 0x2
#define SPI_FMT_PROTO(x) ((x) & 0x3)
#define SPI_FMT_ENDIAN(x) (((x) & 0x1) << 2)
#define SPI_FMT_DIR(x) (((x) & 0x1) << 3)
#define SPI_FMT_LEN(x) (((x) & 0xf) << 16)
/* TXCTRL register */
#define SPI_TXWM(x) ((x) & 0xffff)
/* RXCTRL register */
#define SPI_RXWM(x) ((x) & 0xffff)
#define SPI_IP_TXWM 0x1
#define SPI_IP_RXWM 0x2
#define SPI_FCTRL_EN 0x1
#define SPI_INSN_CMD_EN 0x1
#define SPI_INSN_ADDR_LEN(x) (((x) & 0x7) << 1)
#define SPI_INSN_PAD_CNT(x) (((x) & 0xf) << 4)
#define SPI_INSN_CMD_PROTO(x) (((x) & 0x3) << 8)
#define SPI_INSN_ADDR_PROTO(x) (((x) & 0x3) << 10)
#define SPI_INSN_DATA_PROTO(x) (((x) & 0x3) << 12)
#define SPI_INSN_CMD_CODE(x) (((x) & 0xff) << 16)
#define SPI_INSN_PAD_CODE(x) (((x) & 0xff) << 24)
#define SPI_TXFIFO_FULL (1 << 31)
#define SPI_RXFIFO_EMPTY (1 << 31)
/* Values */
#define SPI_CSMODE_AUTO 0
#define SPI_CSMODE_HOLD 2
#define SPI_CSMODE_OFF 3
#define SPI_DIR_RX 0
#define SPI_DIR_TX 1
#define SPI_PROTO_S 0
#define SPI_PROTO_D 1
#define SPI_PROTO_Q 2
#define SPI_ENDIAN_MSB 0
#define SPI_ENDIAN_LSB 1
#endif /* _SIFIVE_SPI_H */

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@ -0,0 +1,54 @@
# See LICENSE for license details.
ifndef _SIFIVE_MK_LIBWRAP
_SIFIVE_MK_LIBWRAP := # defined
LIBWRAP_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
LIBWRAP_DIR := $(LIBWRAP_DIR:/=)
LIBWRAP_SRCS := \
stdlib/malloc.c \
sys/open.c \
sys/lseek.c \
sys/read.c \
sys/write.c \
sys/fstat.c \
sys/stat.c \
sys/close.c \
sys/link.c \
sys/unlink.c \
sys/execve.c \
sys/fork.c \
sys/getpid.c \
sys/kill.c \
sys/wait.c \
sys/isatty.c \
sys/times.c \
sys/sbrk.c \
sys/_exit.c \
misc/write_hex.c
LIBWRAP_SRCS := $(foreach f,$(LIBWRAP_SRCS),$(LIBWRAP_DIR)/$(f))
LIBWRAP_OBJS := $(LIBWRAP_SRCS:.c=.o)
LIBWRAP_SYMS := malloc free \
open lseek read write fstat stat close link unlink \
execve fork getpid kill wait \
isatty times sbrk _exit
LIBWRAP := libwrap.a
LINK_DEPS += $(LIBWRAP)
LDFLAGS += $(foreach s,$(LIBWRAP_SYMS),-Wl,--wrap=$(s))
LDFLAGS += -L. -Wl,--start-group -lwrap -lc -Wl,--end-group
CLEAN_OBJS += $(LIBWRAP_OBJS)
$(LIBWRAP_OBJS): %.o: %.c $(HEADERS)
$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<
$(LIBWRAP): $(LIBWRAP_OBJS)
$(AR) rcs $@ $^
endif # _SIFIVE_MK_LIBWRAP

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@ -0,0 +1,19 @@
/* See LICENSE of license details. */
#include <stdint.h>
#include <unistd.h>
#include "platform.h"
void write_hex(int fd, uint32_t hex)
{
uint8_t ii;
uint8_t jj;
char towrite;
write(fd , "0x", 2);
for (ii = 8 ; ii > 0; ii--) {
jj = ii - 1;
uint8_t digit = ((hex & (0xF << (jj*4))) >> (jj*4));
towrite = digit < 0xA ? ('0' + digit) : ('A' + (digit - 0xA));
write(fd, &towrite, 1);
}
}

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@ -0,0 +1,17 @@
/* See LICENSE of license details. */
#include <unistd.h>
#include "platform.h"
void __wrap__exit(int code)
{
//volatile uint32_t* leds = (uint32_t*) (GPIO_BASE_ADDR + GPIO_OUT_OFFSET);
const char message[] = "\nProgam has exited with code:";
//*leds = (~(code));
write(STDERR_FILENO, message, sizeof(message) - 1);
write_hex(STDERR_FILENO, code);
write(STDERR_FILENO, "\n", 1);
for (;;);
}

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