Progress with C5471 boot
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@8 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
parent
8ed76ffa96
commit
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@ -43,6 +43,37 @@ CONFIG_ARCH=c5471
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CONFIG_ARCH_C5471=y
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CONFIG_ARCH_C5471=y
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CONFIG_ROM_VECTORS=n
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CONFIG_ROM_VECTORS=n
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#
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# C5471 specific device driver settings
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#
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# CONFIG_SERIAL_IRDA_CONSOLE - selects the IRDA UART for the
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# console ant ttys0 (default is the modem UART).
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# CONFIG_UART_*_HWFLOWCONTROL - enables hardware flow control
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# CONFIG_UART_*_RXBUFSIZE - Characters are buffered as received.
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# This specific the size of the receive buffer
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# CONFIG_UART_*_TXBUFSIZE - Characters are buffered before
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# being sent. This specific the size of the transmit buffer
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# CONFIG_UART_*_BAUD - The configure BAUD of the UART. Must be
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# CONFIG_UART_*_BITS - The number of bits. Must be either 7 or 8.
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# CONFIG_UART_*_PARTIY - 0=no parity, 1=odd parity, 2=even parity
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# CONFIG_UART_*_2STOP - Two stop bits
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#
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CONFIG_SERIAL_IRDA_CONSOLE=n
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CONFIG_UART_IRDA_HWFLOWCONTROL=y
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CONFIG_UART_MODEM_HWFLOWCONTROL=y
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CONFIG_UART_IRDA_RXBUFSIZE=256
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CONFIG_UART_MODEM_RXBUFSIZE=256
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CONFIG_UART_IRDA_TXBUFSIZE=256
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CONFIG_UART_MODEM_TXBUFSIZE=256
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CONFIG_UART_IRDA_BAUD=115200
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CONFIG_UART_MODEM_BAUD=115200
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CONFIG_UART_IRDA_BITS=8
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CONFIG_UART_MODEM_BITS=8
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CONFIG_UART_IRDA_PARITY=0
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CONFIG_UART_MODEM_PARITY=0
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CONFIG_UART_IRDA_2STOP=0
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CONFIG_UART_MODEM_2STOP=0
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#
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#
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# General OS setup
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# General OS setup
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#
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#
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@ -69,7 +100,7 @@ CONFIG_ROM_VECTORS=n
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CONFIG_EXAMPLE=ostest
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CONFIG_EXAMPLE=ostest
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CONFIG_DEBUG=y
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CONFIG_DEBUG=y
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CONFIG_DEBUG_VERBOSE=n
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CONFIG_DEBUG_VERBOSE=n
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CONFIG_ARCH_LOWPUTC=n
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CONFIG_ARCH_LOWPUTC=y
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CONFIG_RR_INTERVAL=200
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_INSTRUMENTATION=n
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CONFIG_SCHED_INSTRUMENTATION=n
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CONFIG_TASK_NAME_SIZE=0
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CONFIG_TASK_NAME_SIZE=0
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@ -77,7 +108,7 @@ CONFIG_START_YEAR=2007
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CONFIG_START_MONTH=2
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CONFIG_START_MONTH=2
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CONFIG_START_DAY=13
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CONFIG_START_DAY=13
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CONFIG_JULIAN_TIME=n
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CONFIG_JULIAN_TIME=n
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CONFIG_DEV_CONSOLE=n
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CONFIG_DEV_CONSOLE=y
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#
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#
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# Allow for artchitecture optimized implementations
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# Allow for artchitecture optimized implementations
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@ -157,9 +188,9 @@ CONFIG_PREALLOC_WDOGS=32
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# CONFIG_HEAP_SIZE - The size of the heap
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# CONFIG_HEAP_SIZE - The size of the heap
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#
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#
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CONFIG_BOOT_FROM_FLASH=n
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CONFIG_BOOT_FROM_FLASH=n
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CONFIG_STACK_POINTER=0x02100000
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CONFIG_STACK_POINTER=
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CONFIG_PROC_STACK_SIZE=0x00001000
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CONFIG_PROC_STACK_SIZE=4096
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CONFIG_PTHREAD_STACK_MIN=256
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CONFIG_PTHREAD_STACK_MIN=256
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CONFIG_PTHREAD_STACK_DEFAULT=4096
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CONFIG_PTHREAD_STACK_DEFAULT=4096
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CONFIG_HEAP_BASE=0x02100000
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CONFIG_HEAP_BASE=(0x10300000+90*1024+4096)
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CONFIG_HEAP_SIZE=0x00100000
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CONFIG_HEAP_SIZE=(0x11000000-CONFIG_HEAP_BASE)
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@ -120,7 +120,7 @@
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#define C5471_IRQ_API 15
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#define C5471_IRQ_API 15
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#define C5471_IRQ_WATCHDOG C5471_IRQ_TIMER0
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#define C5471_IRQ_WATCHDOG C5471_IRQ_TIMER0
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#define C5471_IRQ_SYSTIMER C5471_IRQ_TIMER1
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#define C5471_IRQ_SYSTIMER C5471_IRQ_TIMER2
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#define NR_IRQS (C5471_IRQ_API+1)
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#define NR_IRQS (C5471_IRQ_API+1)
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/************************************************************
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/************************************************************
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66
arch/c5471/include/serial.h
Normal file
66
arch/c5471/include/serial.h
Normal file
@ -0,0 +1,66 @@
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/************************************************************
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* serial.h
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*
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* Copyright (C) 2007 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name Gregory Nutt nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************/
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#ifndef __ARCH_SERIAL_H
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#define __ARCH_SERIAL_H
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/************************************************************
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* Included Files
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************************************************************/
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/************************************************************
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* Definitions
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************************************************************/
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/* IOCTL commands supported by the C5471 serial driver */
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#define TIOCSBRK 0x5401 /* BSD compatibility */
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#define TIOCCBRK 0x5402 /* " " " " */
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#define TIOCSERCONFIG 0x5403 /* Reconfigure the port */
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#define TIOCSERGSTRUCT 0x5458 /* Get up_dev_t for port */
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/************************************************************
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* Private Data
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************************************************************/
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/************************************************************
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* Private Functions
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************************************************************/
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/************************************************************
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* Public Functions
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************************************************************/
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#endif /* __ARCH_SERIAL_H */
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@ -62,7 +62,7 @@ SECTIONS
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/* The OS entry point is here */
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/* The OS entry point is here */
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. = 0x01030000;
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. = 0x10300000;
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.text : {
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.text : {
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_stext = ABSOLUTE(.);
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_stext = ABSOLUTE(.);
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*(.text)
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*(.text)
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@ -38,8 +38,10 @@
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MKDEP = $(TOPDIR)/tools/mkdeps.sh
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MKDEP = $(TOPDIR)/tools/mkdeps.sh
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CFLAGS += -I$(TOPDIR)/sched
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CFLAGS += -I$(TOPDIR)/sched
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ASRCS = up_vectors.S up_saveusercontext.S up_fullcontextrestore.S \
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ASRCS = up_vectors.S up_saveusercontext.S up_fullcontextrestore.S
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up_lowputc.S
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ifeq ($(CONFIG_DEBUG),y)
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ASRCS += up_lowputc.S
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endif
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AOBJS = $(ASRCS:.S=.o)
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AOBJS = $(ASRCS:.S=.o)
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CSRCS = up_initialize.c up_initialstate.c up_idle.c \
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CSRCS = up_initialize.c up_initialstate.c up_idle.c \
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@ -48,7 +50,7 @@ CSRCS = up_initialize.c up_initialstate.c up_idle.c \
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up_createstack.c up_usestack.c up_releasestack.c \
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up_createstack.c up_usestack.c up_releasestack.c \
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up_exit.c up_assert.c up_blocktask.c up_unblocktask.c \
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up_exit.c up_assert.c up_blocktask.c up_unblocktask.c \
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up_releasepending.c up_reprioritizertr.c up_copystate.c \
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up_releasepending.c up_reprioritizertr.c up_copystate.c \
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up_schedulesigaction.c up_sigdeliver.c
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up_schedulesigaction.c up_sigdeliver.c up_serial.c
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COBJS = $(CSRCS:.c=.o)
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COBJS = $(CSRCS:.c=.o)
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SRCS = $(ASRCS) $(CSRCS)
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SRCS = $(ASRCS) $(CSRCS)
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@ -72,6 +72,10 @@
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#define CC_Z_BIT (1 << 30)
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#define CC_Z_BIT (1 << 30)
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#define CC_N_BIT (1 << 31)
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#define CC_N_BIT (1 << 31)
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/* Clocking *************************************************/
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#define C5471_CLOCK 47500000 /* 47.5 MHz */
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/* UARTs ****************************************************/
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/* UARTs ****************************************************/
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#define UART_IRDA_BASE 0xffff0800
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#define UART_IRDA_BASE 0xffff0800
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@ -44,6 +44,18 @@
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* Definitions
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* Definitions
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************************************************************/
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************************************************************/
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/* This macro will modify r0, r1, r2 and r14 */
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#ifdef CONFIG_DEBUG
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.macro showprogress, code
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mov r0, #\code
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bl up_lowputc
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.endm
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#else
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.macro showprogress, code
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.endm
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#endif
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/************************************************************
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/************************************************************
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* OS Entry Point
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* OS Entry Point
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************************************************************/
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************************************************************/
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@ -56,24 +68,28 @@
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.type __start, #function
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.type __start, #function
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__start:
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__start:
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/* First, setup initial processor mode */
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/* First, setup initial processor mode */
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mov r0, #(SVC_MODE | I_BIT | F_BIT )
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mov r0, #(SVC_MODE | I_BIT | F_BIT )
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msr cpsr, r0
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msr cpsr, r0
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/* Setup system stack (and get the BSS range) */
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showprogress 'A'
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/* Setup system stack (and get the BSS range) */
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adr r0, LC0
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adr r0, LC0
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ldmia r0, {r4, r5, sp}
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ldmia r0, {r4, r5, sp}
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/* Clear system BSS section */
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/* Clear system BSS section */
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mov r0, #0
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mov r0, #0
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1: cmp r4, r5
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1: cmp r4, r5
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strcc r0, [r4], #4
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strcc r0, [r4], #4
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bcc 1b
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bcc 1b
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/* Copy system .data sections to new home in RAM. */
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showprogress 'B'
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/* Copy system .data sections to new home in RAM. */
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#ifdef CONFIG_BOOT_FROM_FLASH
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#ifdef CONFIG_BOOT_FROM_FLASH
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@ -86,40 +102,33 @@ __start:
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blt 1b
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blt 1b
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#endif
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#endif
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/* Perform early serial initialization */
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/* Initialize Kernel Stack Contents */
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#if 0
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mov r1, sp
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sub r1, r1, #INITIAL_STACK_SIZE
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ldr r0, L_STACK_MAGIC
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str r0, [r1], #4
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ldr r0, L_STACK_UNTOUCHED_MAGIC
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1: cmp r1, sp
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strcc r0, [r1], #4
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bcc 1b
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#endif
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/* Jump to OS entry */
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mov fp, #0
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mov fp, #0
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bl up_earlyserialinit
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#ifdef CONFIG_DEBUG
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mov r0, #'C'
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bl up_putc
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mov r0, #'\n'
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bl up_putc
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#endif
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/* Then jump to OS entry */
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b os_start
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b os_start
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/* Variables */
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/* Variables */
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LC0: .long _sbss
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LC0: .long _sbss
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.long _ebss
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.long _ebss
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.long CONFIG_STACK_POINTER+CONFIG_PROC_STACK_SIZE-4
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.long _ebss+CONFIG_PROC_STACK_SIZE-4
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#ifdef CONFIG_BOOT_FROM_FLASH
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#ifdef CONFIG_BOOT_FROM_FLASH
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LC2: .long _eronly @ Where .data defaults are stored in Flash.
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LC2: .long _eronly /* Where .data defaults are stored in FLASH */
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.long _sdata @ Where .data needs to reside in SDRAM.
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.long _sdata /* Where .data needs to reside in SDRAM */
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.long _edata
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.long _edata
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#endif
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#endif
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#if 0
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L_STACK_UNTOUCHED_MAGIC: .long 0xfeef1ef0
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L_STACK_MAGIC: .long 0xdeadbeef
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#endif
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.end
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.end
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@ -41,7 +41,6 @@
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#include <sys/types.h>
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#include <sys/types.h>
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#include <debug.h>
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#include <debug.h>
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#include <nuttx/arch.h>
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#include <nuttx/arch.h>
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#include <nuttx/fs.h>
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#include "up_internal.h"
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#include "up_internal.h"
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/************************************************************
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/************************************************************
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@ -86,13 +85,15 @@ void up_initialize(void)
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up_irqinitialize();
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up_irqinitialize();
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/* Attach and enable the timer interrupt */
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/* Initialize the system timer interrupt */
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up_disable_irq(C5471_IRQ_SYSTIMER);
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up_timerinit();
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irq_attach(C5471_IRQ_SYSTIMER, (xcpt_t)up_timerisr);
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up_enable_irq(C5471_IRQ_SYSTIMER);
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/* Register devices */
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/* Register devices */
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devnull_register(); /* Standard /dev/null */
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devnull_register(); /* Standard /dev/null */
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/* Initialize the serial device driver */
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up_serialinit();
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}
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}
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@ -84,6 +84,12 @@ extern void up_syscall(uint32 *regs);
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extern int up_timerisr(int irq, uint32 *regs);
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extern int up_timerisr(int irq, uint32 *regs);
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extern void up_undefinedinsn(uint32 *regs);
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extern void up_undefinedinsn(uint32 *regs);
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#ifdef CONFIG_DEBUG
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extern void up_lowputc(char ch);
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#else
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# define up_lowputc(ch)
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#endif
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/* Defined in up_vectors.S */
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/* Defined in up_vectors.S */
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extern void up_vectorundefinsn(void);
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extern void up_vectorundefinsn(void);
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@ -94,6 +100,15 @@ extern void up_vectoraddrexcptn(void);
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extern void up_vectorirq(void);
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extern void up_vectorirq(void);
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extern void up_vectorfiq(void);
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extern void up_vectorfiq(void);
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/* Defined in up_serial.c */
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extern void up_earlyserialinit(void);
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extern void up_serialinit(void);
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/* Defined in up_timerisr.c */
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extern void up_timerinit(void);
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#endif /* __ASSEMBLY__ */
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#endif /* __ASSEMBLY__ */
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#endif /* __UP_INTERNAL_H */
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#endif /* __UP_INTERNAL_H */
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@ -79,7 +79,7 @@
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*/
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*/
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.text
|
.text
|
||||||
.global up_putc
|
.global up_lowputc
|
||||||
.type up_lowputc, function
|
.type up_lowputc, function
|
||||||
up_lowputc:
|
up_lowputc:
|
||||||
/* On entry, r0 holds the character to be printed */
|
/* On entry, r0 holds the character to be printed */
|
||||||
|
1192
arch/c5471/src/up_serial.c
Normal file
1192
arch/c5471/src/up_serial.c
Normal file
File diff suppressed because it is too large
Load Diff
@ -41,7 +41,30 @@
|
|||||||
#include <sys/types.h>
|
#include <sys/types.h>
|
||||||
#include <debug.h>
|
#include <debug.h>
|
||||||
#include <nuttx/arch.h>
|
#include <nuttx/arch.h>
|
||||||
|
#include "clock_internal.h"
|
||||||
#include "up_internal.h"
|
#include "up_internal.h"
|
||||||
|
#include "c5471.h"
|
||||||
|
|
||||||
|
/************************************************************
|
||||||
|
* Definitions
|
||||||
|
************************************************************/
|
||||||
|
|
||||||
|
/* We want the general purpose timer running at the rate
|
||||||
|
* MSEC_PER_TICK. The C5471 clock is 47.5MHz and we're using
|
||||||
|
* a timer PTV value of 3 (3 == divide incoming frequency by
|
||||||
|
* 16) which then yields a 16 bitCLKS_PER_INT value
|
||||||
|
* of 29687.
|
||||||
|
*
|
||||||
|
* 47500000 / 16 = 2968750 clocks/sec
|
||||||
|
* 2968750 / 100 = 29687 clocks/ 100Hz interrupt
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
#define CLKS_PER_INT 29687
|
||||||
|
#define CLKS_PER_INT_SHIFT 5
|
||||||
|
#define AR 0x00000010
|
||||||
|
#define ST 0x00000008
|
||||||
|
#define PTV 0x00000003
|
||||||
|
|
||||||
/************************************************************
|
/************************************************************
|
||||||
* Private Types
|
* Private Types
|
||||||
@ -91,3 +114,23 @@ int up_timerisr(int irq, uint32 *regs)
|
|||||||
current_regs = saved_regs;
|
current_regs = saved_regs;
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void up_timerinit(void)
|
||||||
|
{
|
||||||
|
uint32 val;
|
||||||
|
|
||||||
|
up_disable_irq(C5471_IRQ_SYSTIMER);
|
||||||
|
|
||||||
|
/* Start the general purpose timer running in auto-reload mode
|
||||||
|
* so that an interrupt is generated at the rate MSEC_PER_TICK.
|
||||||
|
*/
|
||||||
|
|
||||||
|
val = ((CLKS_PER_INT-1) << CLKS_PER_INT_SHIFT) | AR | ST | PTV;
|
||||||
|
putreg32(val, C5471_TIMER2_CTRL);
|
||||||
|
|
||||||
|
/* Attach and enable the timer interrupt */
|
||||||
|
|
||||||
|
irq_attach(C5471_IRQ_SYSTIMER, (xcpt_t)up_timerisr);
|
||||||
|
up_enable_irq(C5471_IRQ_SYSTIMER);
|
||||||
|
}
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user