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c5471 bringup changes

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@41 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2007-03-07 17:42:58 +00:00
parent 282b5da0c3
commit 791617b3b0
13 changed files with 350 additions and 68 deletions
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3
Documentation/NuttX.html
View File

@ -34,9 +34,6 @@
This port uses the <a href="http://www.pjrc.com/">PJRC</a> 87C52 development system
and the <a href="http://sdcc.sourceforge.net/">SDCC</a> toolchain.
This port will require a few more weeks before it is ready for prime time.</li>
<li><b>Motorola (Freescale) MC68HC908GP32 Microcontroller</b>.
Using the Axiom CMS8GP32 development board.
This is next in the queue.</li>
<li><b>Other ports</b>.
I also have partial ports for the TI TMS320DM270 and for MIPS.
</ul>

4
arch/README.txt
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@ -226,10 +226,6 @@ arch/pjrc-8051
8051 Microcontroller. This port uses the PJRC 87C52 development system
and the SDCC toolchain. This port is not quite ready for prime time.
arch/axiom-mc68
For the Motorola (Freescale) MC68HC908GP32 Microcontroller using the
Axiom CMS8GP32 development board. This has not yet been checked-in.
arch/sim
x86 Linux Simulation</b>. Fully functional.

13
arch/c5471/defconfig
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@ -37,11 +37,14 @@
#
# CONFIG_ARCH - identifies the arch subdirectory
# CONFIG_ARCH_name - for use in C code
# CONFIG_ROM_VECTORS - unique to arm7tdmi
# CONFIG_ROM_VECTORS - unique to c5471
# CONFIG_DRAM_END - the size of installed DRAM.
# Unique to c5471
#
CONFIG_ARCH=c5471
CONFIG_ARCH_C5471=y
CONFIG_ROM_VECTORS=n
CONFIG_DRAM_END=0x11000000
#
# C5471 specific device driver settings
@ -59,8 +62,8 @@ CONFIG_ROM_VECTORS=n
# CONFIG_UART_*_2STOP - Two stop bits
#
CONFIG_SERIAL_IRDA_CONSOLE=n
CONFIG_UART_IRDA_HWFLOWCONTROL=y
CONFIG_UART_MODEM_HWFLOWCONTROL=y
CONFIG_UART_IRDA_HWFLOWCONTROL=n
CONFIG_UART_MODEM_HWFLOWCONTROL=n
CONFIG_UART_IRDA_RXBUFSIZE=256
CONFIG_UART_MODEM_RXBUFSIZE=256
CONFIG_UART_IRDA_TXBUFSIZE=256
@ -228,5 +231,5 @@ CONFIG_STACK_POINTER=
CONFIG_PROC_STACK_SIZE=4096
CONFIG_PTHREAD_STACK_MIN=256
CONFIG_PTHREAD_STACK_DEFAULT=4096
CONFIG_HEAP_BASE=(0x10300000+90*1024+CONFIG_PROC_STACK_SIZE)
CONFIG_HEAP_SIZE=(0x11000000-CONFIG_HEAP_BASE)
CONFIG_HEAP_BASE=
CONFIG_HEAP_SIZE=

3
arch/c5471/src/Makefile
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@ -50,7 +50,8 @@ CSRCS = up_initialize.c up_initialstate.c up_idle.c up_doirq.c \
up_createstack.c up_usestack.c up_releasestack.c \
up_exit.c up_assert.c up_blocktask.c up_unblocktask.c \
up_releasepending.c up_reprioritizertr.c up_copystate.c \
up_schedulesigaction.c up_sigdeliver.c up_serial.c
up_schedulesigaction.c up_sigdeliver.c up_serial.c \
up_delay.c up_allocateheap.c
COBJS = $(CSRCS:.c=.o)
SRCS = $(ASRCS) $(CSRCS)

77
arch/c5471/src/up_allocateheap.c Normal file
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@ -0,0 +1,77 @@
/************************************************************
* up_allocateheap.c
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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.
* 3. Neither the name Gregory Nutt 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 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.
*
************************************************************/
/************************************************************
* Included Files
************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <debug.h>
#include <nuttx/arch.h>
#include "up_internal.h"
/************************************************************
* Private Definitions
************************************************************/
/************************************************************
* Private Data
************************************************************/
/************************************************************
* Private Functions
************************************************************/
/************************************************************
* Public Functions
************************************************************/
/************************************************************
* Name: up_allocate_heap
*
* Description:
* The heap may be statically allocated by
* defining CONFIG_HEAP_BASE and CONFIG_HEAP_SIZE. If these
* are not defined, then this function will be called to
* dynamically set aside the heap region.
*
************************************************************/
void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
{
*heap_start = (FAR void*)g_heapstart;
*heap_size = CONFIG_DRAM_END - g_heapstart;
}

102
arch/c5471/src/up_delay.c Normal file
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@ -0,0 +1,102 @@
/************************************************************
* up_delay.c
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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.
* 3. Neither the name Gregory Nutt 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 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.
*
************************************************************/
/************************************************************
* Included Files
************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <unistd.h>
#include <semaphore.h>
#include <string.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include <nuttx/fs.h>
#include <arch/serial.h>
#include "c5471.h"
#include "os_internal.h"
#include "up_internal.h"
/************************************************************
* Definitions
************************************************************/
#define LOOPS_PER_MSEC 1250
/************************************************************
* Private Types
************************************************************/
/************************************************************
* Private Function Prototypes
************************************************************/
/************************************************************
* Private Variables
************************************************************/
/************************************************************
* Private Functions
************************************************************/
/************************************************************
* Public Funtions
************************************************************/
/************************************************************
* Name: up_delay
*
* Description:
* Delay inline for the requested number of milliseconds.
* NOT multi-tasking friendly.
*
************************************************************/
void up_delay(int milliseconds)
{
volatile int i;
volatile int j;
for (i = 0; i < milliseconds; i++)
{
for (j = 0; j < LOOPS_PER_MSEC; j++)
{
}
}
}

19
arch/c5471/src/up_head.S
View File

@ -64,6 +64,7 @@
* us and that only leaves us having to do some os specific things
* below.
*/
.text
.global __start
.type __start, #function
__start:
@ -122,7 +123,9 @@ __start:
* _sbss is the start of the BSS region (see ld.script)
* _ebss is the end of the BSS regsion (see ld.script)
* The idle task stack starts at the end of BSS and is
* of size CONFIG_PROC_STACK_SIZE
* of size CONFIG_PROC_STACK_SIZE. The heap continues
* from there until the end of memory. See g_heapstart
* below.
*/
LC0: .long _sbss
@ -134,6 +137,20 @@ LC2: .long _eronly /* Where .data defaults are stored in FLASH */
.long _sdata /* Where .data needs to reside in SDRAM */
.long _edata
#endif
.size __start, .-__start
/* This global variable is unsigned long g_heapstart and is
* exported from here only because of its coupling to LCO
* above.
*/
.data
.align 4
.globl g_heapstart
.type g_heapstart, object
g_heapstart:
.long _ebss+CONFIG_PROC_STACK_SIZE
.size g_heapstart, .-g_heapstart
.end

2
arch/c5471/src/up_initialize.c
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@ -88,7 +88,9 @@ void up_initialize(void)
/* Initialize the system timer interrupt */
#ifndef CONFIG_SUPPRESS_INTERRUPTS
up_timerinit();
#endif
/* Register devices */

4
arch/c5471/src/up_initialstate.c
View File

@ -83,5 +83,9 @@ void up_initial_state(_TCB *tcb)
memset(xcp, 0, sizeof(struct xcptcontext));
xcp->regs[REG_SP] = (uint32)tcb->adj_stack_ptr;
xcp->regs[REG_PC] = (uint32)tcb->start;
#ifdef CONFIG_SUPPRESS_INTERRUPTS
xcp->regs[REG_CPSR] = SVC_MODE | I_BIT | F_BIT;
#else
xcp->regs[REG_CPSR] = SVC_MODE | F_BIT;
#endif
}

19
arch/c5471/src/up_internal.h
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@ -44,6 +44,11 @@
* Definitions
************************************************************/
/* Bring-up debug configurations */
#define CONFIG_SUPPRESS_INTERRUPTS 1 /* Do not enable interrupts */
#define CONFIG_SUPPRESS_UART_CONFIG 1 /* Do not reconfig UART */
/************************************************************
* Public Types
************************************************************/
@ -57,7 +62,20 @@ typedef void (*up_vector_t)(void);
************************************************************/
#ifndef __ASSEMBLY__
/* This holds a references to the current interrupt level
* register storage structure. If is non-NULL only during
* interrupt processing.
*/
extern uint32 *current_regs;
/* This is the beginning of heap as provided from up_head.S.
* This is the first address in DRAM after the loaded
* program+bss+idle stack. The end of the heap is
* CONFIG_DRAM_END
*/
extern uint32 g_heapstart;
#endif
/************************************************************
@ -75,6 +93,7 @@ extern uint32 *current_regs;
extern void up_copystate(uint32 *dest, uint32 *src);
extern void up_dataabort(uint32 *regs);
extern void up_delay(int milliseconds);
extern void up_doirq(int irq, uint32* regs);
extern void up_fullcontextrestore(uint32 *regs) __attribute__ ((noreturn));
extern void up_irqinitialize(void);

2
arch/c5471/src/up_irq.c
View File

@ -176,7 +176,9 @@ void up_irqinitialize(void)
/* And finally, enable interrupts */
#ifndef CONFIG_SUPPRESS_INTERRUPTS
irqrestore(SVC_MODE | F_BIT);
#endif
}
/************************************************************

136
arch/c5471/src/up_serial.c
View File

@ -43,6 +43,7 @@
#include <semaphore.h>
#include <string.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include <nuttx/fs.h>
@ -57,6 +58,10 @@
#define BASE_BAUD 115200
#if defined(CONFIG_UART_IRDA_HWFLOWCONTROL) || defined(CONFIG_UART_MODEM_HWFLOWCONTROL)
# define CONFIG_UART_HWFLOWCONTROL
#endif
/************************************************************
* Private Types
************************************************************/
@ -93,15 +98,17 @@ struct up_dev_s
* this UART */
boolean parity; /* 0=none, 1=odd, 2=even */
boolean bits; /* Number of bits (7 or 8) */
#ifdef CONFIG_UART_HWFLOWCONTROL
boolean flowcontrol; /* TRUE: Hardware flow control
* is enabled. */
#endif
boolean stopbits2; /* TRUE: Configure with 2
* stop bits instead of 1 */
boolean xmitwaiting; /* TRUE: User is waiting
* for space in xmit.buffer */
boolean recvwaiting; /* TRUE: User is waiting
* for space in recv.buffer */
boolean isconsole; /* TRUE: This is the serila console */
boolean isconsole; /* TRUE: This is the serial console */
sem_t closesem; /* Looks out new opens while
* close is in progress */
sem_t xmitsem; /* Used to wakeup user waiting
@ -124,7 +131,6 @@ static ssize_t up_read(struct file *filep, char *buffer, size_t buflen);
static ssize_t up_write(struct file *filep, const char *buffer, size_t buflen);
static int up_ioctl(struct file *filep, int cmd, unsigned long arg);
static void up_uartsetup(up_dev_t *dev);
static void up_delay(int milliseconds);
/************************************************************
* Private Variables
@ -150,7 +156,9 @@ static up_dev_t g_irdaport =
.baud = CONFIG_UART_IRDA_BAUD,
.parity = CONFIG_UART_IRDA_PARITY,
.bits = CONFIG_UART_IRDA_BITS,
.flowcontrol = CONFIG_UART_IRDA_HWFLOWCONTROL,
#ifdef CONFIG_UART_IRDA_HWFLOWCONTROL
.flowcontrol = TRUE,
#endif
.stopbits2 = CONFIG_UART_IRDA_2STOP,
};
@ -165,7 +173,9 @@ static up_dev_t g_modemport =
.baud = CONFIG_UART_MODEM_BAUD,
.parity = CONFIG_UART_MODEM_PARITY,
.bits = CONFIG_UART_MODEM_BITS,
.flowcontrol = CONFIG_UART_MODEM_HWFLOWCONTROL,
#ifdef CONFIG_UART_MODEM_HWFLOWCONTROL
.flowcontrol = TRUE,
#endif
.stopbits2 = CONFIG_UART_MODEM_2STOP,
};
@ -464,22 +474,13 @@ static inline void up_saveregisters(up_dev_t *dev)
{
dev->regs.ier = up_inserial(dev, UART_IER_OFFS);
dev->regs.lcr = up_inserial(dev, UART_LCR_OFFS);
#ifdef CONFIG_UART_HWFLOWCONTROL
if (dev->flowcontrol)
{
dev->regs.efr = up_inserial(dev, UART_EFR_OFFS);
dev->regs.tcr = up_inserial(dev, UART_TCR_OFFS);
}
}
#define LOOPS_PER_MSEC 1250
static void up_delay(int milliseconds)
{
volatile int i, j;
for (i = 0; i < milliseconds; i++) {
for (j = 0; j < LOOPS_PER_MSEC; j++) {
}
}
#endif
}
/************************************************************
@ -581,6 +582,51 @@ static void up_xmitchars(up_dev_t *dev)
}
}
/************************************************************
* Name: up_putxmitchar
************************************************************/
static void up_putxmitchar(up_dev_t *dev, int ch)
{
int nexthead = dev->xmit.head + 1;
if (nexthead >= dev->xmit.size)
{
nexthead = 0;
}
if (nexthead != dev->xmit.tail)
{
dev->xmit.buffer[dev->xmit.head] = ch;
dev->xmit.head = nexthead;
}
else
{
/* Transfer some characters with interrupts disabled */
up_xmitchars(dev);
/* If we unsuccessful in making room in the buffer.
* then transmit the characters with interrupts
* enabled and wait for result.
*/
if (nexthead == dev->xmit.tail)
{
/* Still no space */
dev->xmitwaiting = TRUE;
/* Wait for some characters to be sent from the buffer
* with the TX interrupt disabled.
*/
up_enabletxint(dev);
up_takesem(&dev->xmitsem);
up_disabletxint(dev);
}
}
}
/************************************************************
* Name: up_interrupt
************************************************************/
@ -665,6 +711,7 @@ static int up_interrupt(int irq, void *context)
static void up_uartsetup(up_dev_t *dev)
{
#ifdef CONFIG_SUPPRESS_UART_CONFIG
unsigned int cval;
uint16 mrs;
@ -701,14 +748,17 @@ static void up_uartsetup(up_dev_t *dev)
up_setrate(dev, dev->baud);
up_setmode(dev, cval);
#ifdef CONFIG_UART_HWFLOWCONTROL
if (dev->flowcontrol)
{
serial_enable_hw_flow_control(dev);
}
else
#endif
{
serial_disable_hw_flow_control(dev);
}
#endif
}
/************************************************************
@ -749,46 +799,20 @@ static ssize_t up_write(struct file *filep, const char *buffer, size_t buflen)
*/
up_disabletxint(dev);
while (buflen)
for (; buflen; buflen--)
{
int nexthead = dev->xmit.head + 1;
if (nexthead >= dev->xmit.size)
int ch = *buffer++;
/* Put the character into the transmit buffer */
up_putxmitchar(dev, ch);
/* If this is the console, then we should replace LF with LF-CR */
if (ch == '\n')
{
nexthead = 0;
up_putxmitchar(dev, '\r');
}
if (nexthead != dev->xmit.tail)
{
dev->xmit.buffer[dev->xmit.head] = *buffer++;
dev->xmit.head = nexthead;
buflen--;
}
else
{
/* Transfer some characters with interrupts disabled */
up_xmitchars(dev);
/* If we unsuccessful in making room in the buffer.
* then transmit the characters with interrupts
* enabled and wait for result.
*/
if (nexthead == dev->xmit.tail)
{
/* Still no space */
dev->xmitwaiting = TRUE;
/* Wait for some characters to be sent from the buffer
* with the TX interrupt disabled.
*/
up_enabletxint(dev);
up_takesem(&dev->xmitsem);
up_disabletxint(dev);
}
}
}
if (dev->xmit.head != dev->xmit.tail)
@ -924,6 +948,10 @@ static int up_close(struct file *filep)
return OK;
}
/* There are no more references to the port */
dev->open_count = 0;
/* Stop accepting input */
up_disablerxint(dev);
@ -1100,12 +1128,12 @@ int up_putc(int ch)
/* Check for LF */
if (ch == 10)
if (ch == '\n')
{
/* Add CR */
up_waittxfifonotfull(&CONSOLE_DEV);
up_outserialchar(&CONSOLE_DEV, 13);
up_outserialchar(&CONSOLE_DEV, '\r');
}
up_waittxfifonotfull(&CONSOLE_DEV);

34
arch/pjrc-8051/README.txt Normal file
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@ -0,0 +1,34 @@
pjrc-8051 README
^^^^^^^^^^^^^^^^
This port uses the PJRC 87C52 development system and the SDCC toolchain.
The PJRC 87C52 development system can be obtained from http://www.pjrc.com/.
The SDCC toolchain is available from http://sdcc.sourceforge.net/. All
testing has been performed using verison 2.6.0 of the SDDC toolchain.
Building the SDCC toolchain
^^^^^^^^^^^^^^^^^^^^^^^^^^^
The SDCC toolchain is built with the standard configure/make/make install
sequence. However, some special actions are required to generate libraries
compatible with this build. First start with the usual steps
download
unpack
cd sdcc
./configure
make
But before installing,
Apply sdcc-2.6.0.patch
cd sdcc/device/lib
make model-mcs51-stack-auto
Then
cd sdcc
make install