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bsps: Add MicroBlaze FPGA BSP

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This commit is contained in:
Hesham ALMatary
2021-09-30 16:33:48 -05:00
committed by Joel Sherrill
parent edf8b49ee5
commit 0f62af0ef8
13 changed files with 778 additions and 75 deletions
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74
c/src/lib/libbsp/microblaze/microblaze_fpga/console/console-io.c Normal file
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/**
* @file
*
* @ingroup microblaze_uart
*
* @brief Console Configuration.
*/
/*
* Copyright (C) 2015 Hesham Almatary
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems/bspIo.h>
#include <libchip/serial.h>
#include <bspopts.h>
#include <bsp/uart.h>
console_tbl Console_Configuration_Ports [] = {
{
.sDeviceName = "/dev/ttyS0",
.deviceType = SERIAL_CUSTOM,
.pDeviceFns = &microblaze_uart_fns,
.deviceProbe = NULL,
.pDeviceFlow = NULL,
.ulCtrlPort1 = UART_BASEADDRESS,
.ulCtrlPort2 = 0,
.ulClock = 9600,
.ulIntVector = 0
}
};
#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;

48
c/src/lib/libbsp/microblaze/microblaze_fpga/include/bsp.h Normal file
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/*
* Copyright (C) 2015 Hesham Almatary
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _BSP_H
#define _BSP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <bspopts.h>
#include <rtems.h>
#include <rtems/iosupp.h>
#include <rtems/console.h>
#include <rtems/clockdrv.h>
/* support for simulated clock tick */
Thread clock_driver_sim_idle_body(uintptr_t);
#define BSP_IDLE_TASK_BODY clock_driver_sim_idle_body
#ifdef __cplusplus
}
#endif
#endif

48
c/src/lib/libbsp/microblaze/microblaze_fpga/include/tm27.h Normal file
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/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTEMS_TMTEST27
#error "This is an RTEMS internal file you must not include directly."
#endif
#ifndef __tm27_h
#define __tm27_h
/*
* Define the interrupt mechanism for Time Test 27
*/
#define MUST_WAIT_FOR_INTERRUPT 0
#define Install_tm27_vector( handler ) /* set_vector( (handler), 6, 1 ) */
#define Cause_tm27_intr() /* XXX */
#define Clear_tm27_intr() /* XXX */
#define Lower_tm27_intr() /* empty */
#endif

109
c/src/lib/libbsp/microblaze/microblaze_fpga/start/start.S Normal file
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/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of Xilinx nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
XMD load *.elf error:
MicroBlaze Vector Map for standalone executables
Address Vector type Label
------- ----------- ------
# 0x00 # (-- IMM --)
# 0x04 # Reset _start1
# 0x08 # (-- IMM --)
# 0x0c # Software Exception _exception_handler
# 0x10 # (-- IMM --)
# 0x14 # Hardware Interrupt _interrupt_handler
# 0x18 # (-- IMM --)
# 0x1C # Breakpoint Exception (-- Don't Care --)
# 0x20 # (-- IMM --)
# 0x24 # Hardware Exception _hw_exception_handler
*/
.globl _start
.section .vectors.reset, "ax"
.align 2
.ent _start
.type _start, @function
_start:
brai _start1
.end _start
.section .vectors.sw_exception, "ax"
.align 2
_vector_sw_exception:
brai _exception_handler
.section .vectors.interrupt, "ax"
.align 2
_vector_interrupt:
brai _interrupt_handler
.section .vectors.hw_exception, "ax"
.align 2
_vector_hw_exception:
brai _hw_exception_handler
.section .text
.globl _start1
.align 2
.ent _start1
.type _start1, @function
_start1:
//la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
//la r2, r0, _SDA2_BASE_
la r1, r0, bsp_section_stack_begin-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
brlid r15, _crtinit /* Initialize BSS and run program */
nop
brlid r15, exit /* Call exit with the return value of main */
addik r5, r3, 0
/* Control does not reach here */
.end _start1
/*
_exit
Our simple _exit
*/
.globl _exit
.align 2
.ent _exit
.type _exit, @function
_exit:
bri 0
.end _exit

38
c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_exception_handler.S Normal file
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/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of Xilinx nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
.text
.globl _exception_handler # Exception Handler Label
.align 2
_exception_handler:
rtsd r17, 0
nop

38
c/src/lib/libbsp/microblaze/microblaze_fpga/startup/_interrupt_handler.S Normal file
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@@ -0,0 +1,38 @@
/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of Xilinx nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
.text
.globl _interrupt_handler # Interrupt Handler Label
.align 2
_interrupt_handler:
rtid r14, 0
nop

85
c/src/lib/libbsp/microblaze/microblaze_fpga/startup/sim-crtinit.S Normal file
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@@ -0,0 +1,85 @@
## Copyright (c) 2015, Hesham Almatary
## Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
##
## 1. Redistributions source code must retain the above copyright notice,
## this list of conditions and the following disclaimer.
##
## 2. Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in the
## documentation and/or other materials provided with the distribution.
##
## 3. Neither the name of Xilinx nor the names of its contributors may be
## used to endorse or promote products derived from this software without
## specific prior written permission.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
## IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
## TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
## PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
## TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
## PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
## LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
## NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
## SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#
# sim-crtinit.s
#
# Default second stage of C run-time initialization that does not peform
# BSS initialization to zero. Typical use is on a simulator.
#
.globl _crtinit
.align 2
.ent _crtinit
_crtinit:
addi r1, r1, -20 /* Save Link register */
swi r15, r1, 0
#ifndef __rtems__
brlid r15, _program_init /* Initialize the program */
nop
brlid r15, __init /* Invoke language initialization functions */
nop
#endif
/* Init .bss */
addi r6, r0, bsp_section_bss_begin
addi r7, r0, bsp_section_bss_end
_clear_bss_loop:
swi r0, r6, 0
addi r6, r6, 4
cmpu r8, r6, r7
bgti r8, _clear_bss_loop
addi r6, r0, 0 /* Initialize argc = 1 and argv = NULL and envp = NULL */
addi r7, r0, 0
brlid r15, boot_card /* Execute the program */
addi r5, r0, 0
addik r19, r3, 0 /* Save return value */
#ifndef __rtems__
brlid r15, __fini /* Invoke language cleanup functions */
nop
brlid r15, _program_clean /* Cleanup the program */
nop
#endif
lw r15, r1, r0 /* Return back to CRT */
addik r3, r19, 0 /* Restore return value */
rtsd r15, 8
addi r1, r1, 20
.end _crtinit

104
c/src/lib/libbsp/microblaze/shared/include/linker-symbols.h Normal file
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@@ -0,0 +1,104 @@
/*
* Copyright (C) 2015 Hesham Almatary
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LIBBSP_MICROBLAZE_SHARED_LINKER_SYMBOLS_H
#define LIBBSP_MICROBLAZE_SHARED_LINKER_SYMBOLS_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup microblaze Linker Support
*
* @ingroup microblaze_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_MICROBLAZE_SHARED_LINKER_SYMBOLS_H */

45
cpukit/score/cpu/microblaze/cpu.c
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@@ -1,14 +1,28 @@
/*
* MicroBlaze CPU Dependent Source
*
* Copyright (c) 2015, Hesham Almatary
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* $Id: cpu.c,v 1.24 2010/03/27 15:02:26 joel Exp $
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
@@ -42,6 +56,25 @@ void _CPU_Initialize(void)
/* FP context initialization support goes here */
}
void _CPU_Context_Initialize(
Context_Control *context,
void *stack_area_begin,
size_t stack_area_size,
uint32_t new_level,
void (*entry_point)( void ),
bool is_fp,
void *tls_area
)
{
uint32_t stack = ((uint32_t) stack_area_begin);
uint32_t stack_high = stack + stack_area_size;
memset(context, 0, sizeof(*context));
context->r[0] = stack_high;
context->r[3] = (uint32_t) entry_point;
}
/*PAGE
*
* _CPU_ISR_Get_level

88
cpukit/score/cpu/microblaze/microblaze-context-switch.S Normal file
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@@ -0,0 +1,88 @@
/*
* Copyright (c) 2015, Hesham Almatary
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/asm.h>
.text
.align 4
PUBLIC(_CPU_Context_switch)
PUBLIC(_CPU_Context_restore)
PUBLIC(_CPU_Context_restore_fp)
PUBLIC(_CPU_Context_save_fp)
SYM(_CPU_Context_switch):
swi r1, r5, 0
swi r13, r5, 4
swi r14, r5, 8
swi r15, r5, 12
swi r16, r5, 16
swi r17, r5, 20
swi r18, r5, 24
swi r19, r5, 28
swi r20, r5, 32
swi r21, r5, 36
swi r22, r5, 40
swi r23, r5, 44
swi r24, r5, 48
swi r25, r5, 52
swi r26, r5, 56
swi r27, r5, 60
swi r28, r5, 64
swi r29, r5, 68
swi r30, r5, 72
swi r31, r5, 76
SYM(restore):
lwi r1, r6, 0
lwi r13, r6, 4
lwi r14, r6, 8
lwi r15, r6, 12
lwi r16, r6, 16
lwi r17, r6, 20
lwi r18, r6, 24
lwi r19, r6, 28
lwi r20, r6, 32
lwi r21, r6, 36
lwi r22, r6, 40
lwi r23, r6, 44
lwi r24, r6, 48
lwi r25, r6, 52
lwi r26, r6, 56
lwi r27, r6, 60
lwi r28, r6, 64
lwi r29, r6, 68
lwi r30, r6, 72
lwi r31, r6, 76
rtsd r15, 8
SYM(_CPU_Context_restore):
add r6, r5, r0
brai restore

2
cpukit/score/cpu/microblaze/rtems/asm.h
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@@ -19,6 +19,7 @@
* notice. This file is freely distributable as long as the source
* of the file is noted. This file is:
*
* Copyright (c) 2015, Hesham Almatary
* COPYRIGHT (c) 1994-2006.
* On-Line Applications Research Corporation (OAR).
*
@@ -36,7 +37,6 @@
#define ASM
#endif
#include <rtems/score/cpuopts.h>
#include <rtems/score/no_cpu.h>
#ifndef __USER_LABEL_PREFIX__
/**

139
cpukit/score/cpu/microblaze/rtems/score/cpu.h
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@@ -1,3 +1,30 @@
/*
* Copyright (c) 2015, Hesham Almatary
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file rtems/score/cpu.h
*/
@@ -19,17 +46,6 @@
* add CPU family specific information in this section
*/
/*
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id: cpu.h,v 1.35 2010/10/21 22:14:20 joel Exp $
*/
#ifndef _RTEMS_SCORE_CPU_H
#define _RTEMS_SCORE_CPU_H
@@ -464,19 +480,7 @@ extern "C" {
* to another.
*/
typedef struct {
/** This field is a hint that a port will have a number of integer
* registers that need to be saved at a context switch.
*/
uint32_t some_integer_register;
/** This field is a hint that a port will have a number of system
* registers that need to be saved at a context switch.
*/
uint32_t some_system_register;
/** This field is a hint that a port will have a register that
* is the stack pointer.
*/
uint32_t stack_pointer;
uint32_t r[32];
} Context_Control;
/**
@@ -489,7 +493,7 @@ typedef struct {
* @return This method returns the stack pointer.
*/
#define _CPU_Context_Get_SP( _context ) \
(_context)->stack_pointer
(_context)->r[0]
/**
* @ingroup CPUContext Management
@@ -799,43 +803,32 @@ uint32_t _CPU_ISR_Get_level( void );
/* end of ISR handler macros */
/* Context handler macros */
/**
* @ingroup CPUContext
* Initialize the context to a state suitable for starting a
* task after a context restore operation. Generally, this
* involves:
* @brief Initializes the CPU context.
*
* - setting a starting address
* - preparing the stack
* - preparing the stack and frame pointers
* - setting the proper interrupt level in the context
* - initializing the floating point context
* The following steps are performed:
* - setting a starting address
* - preparing the stack
* - preparing the stack and frame pointers
* - setting the proper interrupt level in the context
*
* This routine generally does not set any unnecessary register
* in the context. The state of the "general data" registers is
* undefined at task start time.
*
* @param[in] _the_context is the context structure to be initialized
* @param[in] _stack_base is the lowest physical address of this task's stack
* @param[in] _size is the size of this task's stack
* @param[in] _isr is the interrupt disable level
* @param[in] _entry_point is the thread's entry point. This is
* always @a _Thread_Handler
* @param[in] _is_fp is TRUE if the thread is to be a floating
* point thread. This is typically only used on CPUs where the
* FPU may be easily disabled by software such as on the SPARC
* where the PSR contains an enable FPU bit.
*
* Port Specific Information:
*
* XXX document implementation including references if appropriate
* @param[in] context points to the context area
* @param[in] stack_area_begin is the low address of the allocated stack area
* @param[in] stack_area_size is the size of the stack area in bytes
* @param[in] new_level is the interrupt level for the task
* @param[in] entry_point is the task's entry point
* @param[in] is_fp is set to @c true if the task is a floating point task
* @param[in] tls_area is the thread-local storage (TLS) area
*/
#define _CPU_Context_Initialize( _the_context, _stack_base, _size, \
_isr, _entry_point, _is_fp ) \
{ \
}
void _CPU_Context_Initialize(
Context_Control *context,
void *stack_area_begin,
size_t stack_area_size,
uint32_t new_level,
void (*entry_point)( void ),
bool is_fp,
void *tls_area
);
/**
* This routine is responsible for somehow restarting the currently
@@ -916,9 +909,9 @@ uint32_t _CPU_ISR_Get_level( void );
*
* XXX document implementation including references if appropriate
*/
#define _CPU_Fatal_halt( _error ) \
{ \
}
#define _CPU_Fatal_halt(_source, _error ) \
printk("Fatal Error %d.%d Halted\n",_source, _error); \
for(;;)
/* end of Fatal Error manager macros */
@@ -1059,6 +1052,21 @@ uint32_t _CPU_ISR_Get_level( void );
#endif
#define CPU_TIMESTAMP_USE_STRUCT_TIMESPEC FALSE
#define CPU_TIMESTAMP_USE_INT64 TRUE
#define CPU_TIMESTAMP_USE_INT64_INLINE FALSE
typedef struct {
/* There is no CPU specific per-CPU state */
} CPU_Per_CPU_control;
#define CPU_SIZEOF_POINTER 4
#define CPU_PER_CPU_CONTROL_SIZE 0
typedef struct {
uint32_t r[32];
} CPU_Exception_frame;
/* end of Priority handler macros */
/* functions */
@@ -1256,6 +1264,15 @@ static inline uint32_t CPU_swap_u32(
#define CPU_swap_u16( value ) \
(((value&0xff) << 8) | ((value >> 8)&0xff))
typedef uint32_t CPU_Counter_ticks;
CPU_Counter_ticks _CPU_Counter_read( void );
CPU_Counter_ticks _CPU_Counter_difference(
CPU_Counter_ticks second,
CPU_Counter_ticks first
);
#ifdef __cplusplus
}
#endif

35
cpukit/score/cpu/microblaze/rtems/score/microblaze.h
View File

@@ -1,20 +1,41 @@
/*
* Copyright (c) 2015, Hesham Almatary
* COPYRIGHT (c) 1989-2008.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This file sets up basic CPU dependency settings based on
* compiler settings. For example, it can determine if
* floating point is available. This particular implementation
* is specified to the NO CPU port.
*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id: no_cpu.h,v 1.9 2009/12/02 09:48:25 ralf Exp $
*
*/
#ifndef _RTEMS_SCORE_NO_CPU_H
#define _RTEMS_SCORE_NO_CPU_H