Add support for MoxaRT
This commit is contained in:
Anton D. Kachalov
parent
3d32eb9465
commit
75762f1519
@ -223,6 +223,13 @@ config ARCH_CHIP_STR71X
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---help---
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STMicro STR71x architectures (ARM7TDMI).
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config ARCH_CHIP_MOXART
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bool "MoxART"
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select ARCH_HAVE_RAMVECTORS
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select ARCH_HAVE_RESET
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---help---
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MoxART family
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endchoice
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config ARCH_ARM7TDMI
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@ -319,6 +326,7 @@ config ARCH_CHIP
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default "stm32" if ARCH_CHIP_STM32
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default "stm32f7" if ARCH_CHIP_STM32F7
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default "str71x" if ARCH_CHIP_STR71X
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default "moxart" if ARCH_CHIP_MOXART
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config ARMV7M_USEBASEPRI
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bool "Use BASEPRI Register"
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@ -529,5 +537,8 @@ endif
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if ARCH_CHIP_STR71X
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source arch/arm/src/str71x/Kconfig
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endif
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if ARCH_CHIP_MOXART
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source arch/arm/src/moxart/Kconfig
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endif
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endif
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87
arch/arm/include/moxart/irq.h
Normal file
87
arch/arm/include/moxart/irq.h
Normal file
@ -0,0 +1,87 @@
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/****************************************************************************
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* arch/arm/include/moxart/irq.h
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*
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* Copyright (C) 2009-2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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 NuttX 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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/* This file should never be included directed but, rather,
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* only indirectly through nuttx/irq.h
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*/
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#ifndef __ARCH_ARM_INCLUDE_MOXART_IRQ_H
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#define __ARCH_ARM_INCLUDE_MOXART_IRQ_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Inline functions
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****************************************************************************/
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/****************************************************************************
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* Public Variables
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif
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#define IRQ_SYSTIMER 19
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#define NR_IRQS 32
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#endif /* __ARCH_ARM_INCLUDE_MOXART_IRQ_H */
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6
arch/arm/src/moxart/Kconfig
Normal file
6
arch/arm/src/moxart/Kconfig
Normal file
@ -0,0 +1,6 @@
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#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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comment "MoxART Configuration Options"
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59
arch/arm/src/moxart/Make.defs
Normal file
59
arch/arm/src/moxart/Make.defs
Normal file
@ -0,0 +1,59 @@
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############################################################################
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# calypso/Make.defs
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#
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# Copyright (C) 2007, 2013-2015 Gregory Nutt. All rights reserved.
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# Author: Gregory Nutt <gnutt@nuttx.org>
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#
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# Copyright (C) 2011 Stefan Richter. All rights reserved.
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# Author: Stefan Richter <ichgeh@l--putt.de>
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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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HEAD_ASRC = moxart_head.S
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CMN_ASRCS = up_saveusercontext.S up_fullcontextrestore.S up_vectors.S
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CMN_ASRCS += up_nommuhead.S vfork.S
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CMN_CSRCS = up_allocateheap.c up_assert.c up_blocktask.c up_copyfullstate.c
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CMN_CSRCS += up_createstack.c up_dataabort.c up_mdelay.c up_udelay.c
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CMN_CSRCS += up_exit.c up_initialstate.c up_initialize.c
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CMN_CSRCS += up_interruptcontext.c up_prefetchabort.c up_releasepending.c
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CMN_CSRCS += up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c
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CMN_CSRCS += up_sigdeliver.c up_stackframe.c up_syscall.c up_unblocktask.c
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CMN_CSRCS += up_undefinedinsn.c up_usestack.c up_vfork.c up_etherstub.c
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ifeq ($(CONFIG_ELF),y)
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CMN_CSRCS += up_elf.c
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endif
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CHIP_ASRCS = moxart_lowputc.S
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CHIP_CSRCS = moxart_16550.c moxart_irq.c moxart_timer.c moxart_idle.c
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CHIP_CSRCS += moxart_systemreset.c
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145
arch/arm/src/moxart/chip.h
Normal file
145
arch/arm/src/moxart/chip.h
Normal file
@ -0,0 +1,145 @@
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/************************************************************************************
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* arch/arm/src/moxa/chip.h
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*
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* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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 NuttX 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_ARM_SRC_MOXART_CHIP_H
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#define __ARCH_ARM_SRC_MOXART_CHIP_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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#define UART0_BASE 0x98200000
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#define UART_THR 0x00
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#define UART_LSR 0x14
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#define UART_LSR_THRE 0x20
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/* Common UART Registers. Expressed as offsets from the BASE address */
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#define UART_RHR_OFFS 0x00000000 /* Rcv Holding Register */
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#define UART_THR_OFFS 0x00000000 /* Xmit Holding Register */
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#define UART_FCR_OFFS 0x00000002 /* FIFO Control Register */
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#define UART_RFCR_OFFS 0x00000002 /* Rcv FIFO Control Register */
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#define UART_TFCR_OFFS 0x00000002 /* Xmit FIFO Control Register */
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#define UART_SCR_OFFS 0x00000010 /* Status Control Register */
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#define UART_LCR_OFFS 0x00000003 /* Line Control Register */
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#define UART_LSR_OFFS 0x00000005 /* Line Status Register */
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#define UART_SSR_OFFS 0x00000011 /* Supplementary Status Register */
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#define UART_MCR_OFFS 0x00000004 /* Modem Control Register */
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#define UART_MSR_OFFS 0x00000006 /* Modem Status Register */
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#define UART_IER_OFFS 0x00000001 /* Interrupt Enable Register */
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#define UART_ISR_OFFS 0x00000002 /* Interrupt Status Register */
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#define UART_EFR_OFFS 0x00000002 /* Enhanced Feature Register */
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#define UART_XON1_OFFS 0x00000004 /* XON1 Character Register */
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#define UART_XON2_OFFS 0x00000005 /* XON2 Character Register */
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#define UART_XOFF1_OFFS 0x00000006 /* XOFF1 Character Register */
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#define UART_XOFF2_OFFS 0x00000007 /* XOFF2 Character Register */
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#define UART_SPR_OFFS 0x00000007 /* Scratch-pad Register */
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#define UART_DIV_LOW_OFFS 0x00000000 /* Divisor for baud generation */
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#define UART_DIV_HIGH_OFFS 0x00000001
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#define UART_TCR_OFFS 0x00000006 /* Transmission Control Register */
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#define UART_TLR_OFFS 0x00000007 /* Trigger Level Register */
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#define UART_MDR_OFFS 0x00000008 /* Mode Definition Register */
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/* UART Settings ************************************************************/
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/* Miscellaneous UART settings. */
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#define IRQ_UART 1
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#define UART_REGISTER_BITS 8
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#define UART_IRQ IRQ_UART
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#define UART_RX_FIFO_NOEMPTY 0x00000001
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#define UART_SSR_TXFULL 0x00000001
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#define UART_LSR_TREF 0x00000020
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#define UART_XMIT_FIFO_SIZE 64
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#define UART_IRDA_XMIT_FIFO_SIZE 64
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/* UART_LCR Register */
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/* Bits 31-7: Reserved */
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#define UART_LCR_BOC 0x00000040 /* Bit 6: Break Control */
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/* Bit 5: Parity Type 2 */
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#define UART_LCR_PAREVEN 0x00000010 /* Bit 4: Parity Type 1 */
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#define UART_LCR_PARODD 0x00000000
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#define UART_LCR_PARMARK 0x00000010
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#define UART_LCR_PARSPACE 0x00000011
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#define UART_LCR_PAREN 0x00000008 /* Bit 3: Paity Enable */
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#define UART_LCR_PARDIS 0x00000000
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#define UART_LCR_2STOP 0x00000004 /* Bit 2: Number of stop bits */
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#define UART_LCR_1STOP 0x00000000
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#define UART_LCR_5BITS 0x00000000 /* Bits 0-1: Word-length */
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#define UART_LCR_6BITS 0x00000001
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#define UART_LCR_7BITS 0x00000002
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#define UART_LCR_8BITS 0x00000003
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#define UART_FCR_FTL 0x000000f0
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#define UART_FCR_FIFO_EN 0x00000001
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#define UART_FCR_TX_CLR 0x00000002
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#define UART_FCR_RX_CLR 0x00000004
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#define UART_IER_RECVINT 0x00000001
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#define UART_IER_XMITINT 0x00000002
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#define UART_IER_LINESTSINT 0x00000004
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#define UART_IER_MODEMSTSINT 0x00000008 /* IrDA UART only */
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#define UART_IER_XOFFINT 0x00000020
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#define UART_IER_RTSINT 0x00000040 /* IrDA UART only */
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#define UART_IER_CTSINT 0x00000080 /* IrDA UART only */
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#define UART_IER_INTMASK 0x000000ff
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#define BAUD_115200 0x00000007
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#define BAUD_57600 0x00000014
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#define BAUD_38400 0x00000021
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#define BAUD_19200 0x00000006
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#define BAUD_9600 0x0000000C
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#define BAUD_4800 0x00000018
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#define BAUD_2400 0x00000030
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#define BAUD_1200 0x00000060
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/************************************************************************************
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* Public Types
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************************************************************************************/
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/************************************************************************************
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* Public Data
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************************************************************************************/
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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#endif /* __ARCH_ARM_SRC_MOXART_CHIP_H */
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24
arch/arm/src/moxart/moxart_16550.c
Normal file
24
arch/arm/src/moxart/moxart_16550.c
Normal file
@ -0,0 +1,24 @@
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <nuttx/arch.h>
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#include <nuttx/serial/uart_16550.h>
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#include "arm.h"
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#include "up_arch.h"
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uart_datawidth_t uart_getreg(uart_addrwidth_t base, unsigned int offset)
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{
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return *((volatile uart_addrwidth_t *)base + offset);
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}
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void uart_putreg(uart_addrwidth_t base, unsigned int offset, uart_datawidth_t value)
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{
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*((volatile uart_addrwidth_t *)base + offset) = value;
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}
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23
arch/arm/src/moxart/moxart_head.S
Normal file
23
arch/arm/src/moxart/moxart_head.S
Normal file
@ -0,0 +1,23 @@
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/* Place a branch to the real head at the entry point */
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.section .text.start
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b __start
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/* Exception Vectors like they are needed for the exception vector
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indirection of the internal boot ROM. The following section must
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be liked to appear at 0x80001c */
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.section .text.exceptions
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_undef_instr:
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b up_vectorundefinsn
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_sw_interr:
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b up_vectorswi
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_prefetch_abort:
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b up_vectorprefetch
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_data_abort:
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b up_vectordata
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_reserved:
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b _reserved
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_irq:
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b up_vectorirq
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_fiq:
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b up_vectorfiq
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95
arch/arm/src/moxart/moxart_idle.c
Normal file
95
arch/arm/src/moxart/moxart_idle.c
Normal file
@ -0,0 +1,95 @@
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/****************************************************************************
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* arch/arm/src/common/up_idle.c
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*
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* Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
|
||||
* 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 NuttX 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.
|
||||
*
|
||||
****************************************************************************/
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||||
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/****************************************************************************
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||||
* Included Files
|
||||
****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include "up_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define BEGIN_IDLE (*(volatile uint32_t *)0x98700000) &= ~0x10
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#define END_IDLE (*(volatile uint32_t *)0x98700000) |= 0x10
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||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_idle
|
||||
*
|
||||
* Description:
|
||||
* up_idle() is the logic that will be executed when their is no other
|
||||
* ready-to-run task. This is processor idle time and will continue until
|
||||
* some interrupt occurs to cause a context switch from the idle task.
|
||||
*
|
||||
* Processing in this state may be processor-specific. e.g., this is where
|
||||
* power management operations might be performed.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_idle(void)
|
||||
{
|
||||
#if defined(CONFIG_SUPPRESS_INTERRUPTS) || defined(CONFIG_SUPPRESS_TIMER_INTS)
|
||||
/* If the system is idle and there are no timer interrupts, then process
|
||||
* "fake" timer interrupts. Hopefully, something will wake up.
|
||||
*/
|
||||
|
||||
sched_process_timer();
|
||||
#else
|
||||
uint32_t i;
|
||||
|
||||
/* Sleep until an interrupt occurs to save power */
|
||||
|
||||
BEGIN_IDLE;
|
||||
//asm("nop\nnop\nmcr p15, 0, r0, c7, c0, 4\n");
|
||||
for (i=0; i<0x40000; i++) asm("nop");
|
||||
END_IDLE;
|
||||
for (i=0; i<0x40000; i++) asm("nop");
|
||||
#endif
|
||||
}
|
||||
293
arch/arm/src/moxart/moxart_irq.c
Normal file
293
arch/arm/src/moxart/moxart_irq.c
Normal file
@ -0,0 +1,293 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/moxart/moxart_irq.c
|
||||
* Driver for MoxaRT IRQ controller
|
||||
*
|
||||
* (C) 2010 by Harald Welte <laforge@gnumonks.org>
|
||||
* (C) 2011 by Stefan Richter <ichgeh@l--putt.de>
|
||||
*
|
||||
* This source code is derivated from Osmocom-BB project and was
|
||||
* relicensed as BSD with permission from original authors.
|
||||
*
|
||||
* 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 NuttX 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 <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
|
||||
#include <arch/calypso/memory.h>
|
||||
#include <arch/calypso/clock.h>
|
||||
|
||||
#include "arm.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define IRQ_ADDR 0x98800000
|
||||
#define IRQ_REG(x) (IRQ_ADDR + x)
|
||||
|
||||
#define IRQ__SRC 0x00
|
||||
#define IRQ__MASK 0x04
|
||||
#define IRQ__CLEAR 0x08
|
||||
#define IRQ__MODE 0x0C
|
||||
#define IRQ__LEVEL 0x10
|
||||
#define IRQ__STATUS 0x14
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
volatile uint32_t *current_regs;
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_irqinitialize
|
||||
*
|
||||
* Description:
|
||||
* Setup the IRQ and FIQ controllers
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_irqinitialize(void)
|
||||
{
|
||||
/* Prepare hardware */
|
||||
(*(volatile uint32_t *)0x98100008) &= ~0x9;
|
||||
|
||||
while (!((*(volatile uint32_t *)0x98100008) & 0x2)) { ; }
|
||||
|
||||
(*(volatile uint32_t *)0x98100008) |= 0x4;
|
||||
|
||||
(*(volatile uint32_t *)0x98800100) = 0xDFF8003F;
|
||||
|
||||
/* Mask all interrupts off */
|
||||
putreg32(0, IRQ_REG(IRQ__MASK));
|
||||
putreg32(0, IRQ_REG(IRQ__MASK+0x20));
|
||||
putreg32(0xffffffff, IRQ_REG(IRQ__CLEAR));
|
||||
putreg32(0xffffffff, IRQ_REG(IRQ__CLEAR+0x20));
|
||||
|
||||
/* Initial trigger mode and level */
|
||||
putreg32(0, IRQ_REG(IRQ__MODE));
|
||||
putreg32(0, IRQ_REG(IRQ__LEVEL));
|
||||
putreg32(0, IRQ_REG(IRQ__MODE+0x20));
|
||||
putreg32(0, IRQ_REG(IRQ__LEVEL+0x20));
|
||||
|
||||
/* currents_regs is non-NULL only while processing an interrupt */
|
||||
|
||||
current_regs = NULL;
|
||||
|
||||
/* And finally, enable interrupts */
|
||||
|
||||
#if 1
|
||||
#define REG(x) (*(volatile uint32_t *)(x))
|
||||
lldbg("\n=============================================================\n");
|
||||
lldbg("TM CNTL=%08x INTRS=%08x MASK=%08x LOAD=%08x COUNT=%08x M1=%08x\n", REG(0x98400030), REG(0x98400034), REG(0x98400038), REG(0x98400004), REG(0x98400000), REG(0x98400008));
|
||||
lldbg("IRQ STATUS=%08x MASK=%08x MODE=%08x LEVEL=%08x\n", REG(0x98800014), REG(0x98800004), REG(0x9880000C), REG(0x98800010));
|
||||
lldbg("FIQ STATUS=%08x MASK=%08x MODE=%08x LEVEL=%08x\n", REG(0x98800034), REG(0x98800024), REG(0x9880002C), REG(0x98800020));
|
||||
lldbg("=============================================================\n");
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SUPPRESS_INTERRUPTS
|
||||
irqrestore(SVC_MODE | PSR_F_BIT);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void ftintc010_mask_irq(int irq)
|
||||
{
|
||||
/*
|
||||
* 0: masked
|
||||
* 1: unmasked
|
||||
*/
|
||||
uint32_t mask;
|
||||
|
||||
mask = getreg32(IRQ_REG(IRQ__MASK));
|
||||
mask &= ~(1 << irq);
|
||||
putreg32(mask, IRQ_REG(IRQ__MASK));
|
||||
}
|
||||
|
||||
static inline void ftintc010_unmask_irq(int irq)
|
||||
{
|
||||
/*
|
||||
* 0: masked
|
||||
* 1: unmasked
|
||||
*/
|
||||
uint32_t mask;
|
||||
|
||||
mask = getreg32(IRQ_REG(IRQ__MASK));
|
||||
mask |= 1 << irq;
|
||||
putreg32(mask, IRQ_REG(IRQ__MASK));
|
||||
}
|
||||
|
||||
static inline void ftintc010_set_trig_mode(int irq, int mode)
|
||||
{
|
||||
uint32_t irqmode;
|
||||
|
||||
irqmode = getreg32(IRQ_REG(IRQ__MODE));
|
||||
|
||||
/*
|
||||
* 0: level trigger
|
||||
* 1: edge trigger
|
||||
*/
|
||||
if (mode)
|
||||
irqmode |= (1 << irq);
|
||||
else
|
||||
irqmode &= ~(1 << irq);
|
||||
|
||||
putreg32(irqmode, IRQ_REG(IRQ__MODE));
|
||||
}
|
||||
|
||||
static inline void ftintc010_set_trig_level(int irq, int level)
|
||||
{
|
||||
uint32_t irqlevel;
|
||||
|
||||
irqlevel = getreg32(IRQ_REG(IRQ__MODE));
|
||||
|
||||
/*
|
||||
* 0: active-high level trigger / rising edge trigger
|
||||
* 1: active-low level trigger / falling edge trigger
|
||||
*/
|
||||
if (level)
|
||||
irqlevel |= (1 << irq);
|
||||
else
|
||||
irqlevel &= ~(1 << irq);
|
||||
|
||||
putreg32(irqlevel, IRQ_REG(IRQ__MODE));
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_disable_irq
|
||||
*
|
||||
* Description:
|
||||
* Disable the IRQ specified by 'irq'
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_disable_irq(int irq)
|
||||
{
|
||||
if ((unsigned)irq < NR_IRQS)
|
||||
{
|
||||
ftintc010_mask_irq(irq);
|
||||
ftintc010_set_trig_mode(irq, 0);
|
||||
ftintc010_set_trig_level(irq, 1);
|
||||
}
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_enable_irq
|
||||
*
|
||||
* Description:
|
||||
* Enable the IRQ specified by 'irq'
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_enable_irq(int irq)
|
||||
{
|
||||
if ((unsigned)irq < NR_IRQS)
|
||||
{
|
||||
ftintc010_unmask_irq(irq);
|
||||
ftintc010_set_trig_mode(irq, 1);
|
||||
ftintc010_set_trig_level(irq, 0);
|
||||
}
|
||||
}
|
||||
|
||||
static int ffs(uint32_t word)
|
||||
{
|
||||
int t, r;
|
||||
|
||||
if (word == 0)
|
||||
return 0;
|
||||
|
||||
t = r = 1;
|
||||
|
||||
while (!(word & t))
|
||||
{
|
||||
t <<= 1;
|
||||
r++;
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
/************************************************************************
|
||||
* Name: up_ack_irq
|
||||
*
|
||||
* Description:
|
||||
* Acknowledge the interrupt
|
||||
*
|
||||
************************************************************************/
|
||||
|
||||
void up_ack_irq(int irq)
|
||||
{
|
||||
putreg32((1 << irq), IRQ_REG(IRQ__CLEAR));
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Entry point for interrupts
|
||||
****************************************************************************/
|
||||
|
||||
void up_decodeirq(uint32_t *regs)
|
||||
{
|
||||
uint32_t num, status;
|
||||
|
||||
/* Detect & deliver the IRQ */
|
||||
status = getreg32(IRQ_REG(IRQ__STATUS));
|
||||
if (!status)
|
||||
return;
|
||||
|
||||
/* Ack IRQ */
|
||||
num = ffs(status) - 1;
|
||||
up_ack_irq(num);
|
||||
|
||||
DEBUGASSERT(current_regs == NULL);
|
||||
current_regs = regs;
|
||||
|
||||
irq_dispatch(num, regs);
|
||||
|
||||
current_regs = NULL;
|
||||
up_lowputc('+');
|
||||
}
|
||||
129
arch/arm/src/moxart/moxart_lowputc.S
Normal file
129
arch/arm/src/moxart/moxart_lowputc.S
Normal file
@ -0,0 +1,129 @@
|
||||
/**************************************************************************
|
||||
* moxart/moxart_lowputc.S
|
||||
*
|
||||
* Copyright (C) 2011 Stefan Richter. All rights reserved.
|
||||
* Author: Stefan Richter <ichgeh@l--putt.de>
|
||||
*
|
||||
* based on: c5471/c5471_lowputc.S
|
||||
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 NuttX 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 "chip.h"
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
/**************************************************************************
|
||||
* Pre-processor Definitions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Types
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Function Prototypes
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Global Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Variables
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Private Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Public Functions
|
||||
**************************************************************************/
|
||||
|
||||
/**************************************************************************
|
||||
* Name: up_lowputc
|
||||
**************************************************************************/
|
||||
|
||||
/* This assembly language version has the advantage that it can does not
|
||||
* require a C stack and uses only r0-r1. Hence it can be used during
|
||||
* early boot phases.
|
||||
*/
|
||||
|
||||
.text
|
||||
.global up_lowputc
|
||||
.type up_lowputc, function
|
||||
up_lowputc:
|
||||
/* On entry, r0 holds the character to be printed */
|
||||
|
||||
ldr r2, =UART0_BASE /* r2=UART0 base */
|
||||
|
||||
/* Poll bit 0 of the UART_SSR register. When the bit
|
||||
* is clear, the TX FIFO is no longer full
|
||||
*/
|
||||
|
||||
1: ldrb r1, [r2, #UART_LSR]
|
||||
tst r1, #UART_LSR_THRE
|
||||
beq 1b
|
||||
|
||||
/* Send the character by writing it into the UART_THR
|
||||
* register.
|
||||
*/
|
||||
|
||||
strb r0, [r2, #UART_THR]
|
||||
|
||||
/* Wait for the tranmsit holding regiser (THR) to be
|
||||
* emptied. This is detemined when bit 6 of the LSR
|
||||
* is set.
|
||||
*/
|
||||
|
||||
2: ldrb r1, [r2, #UART_LSR]
|
||||
tst r1, #UART_LSR_THRE
|
||||
beq 2b
|
||||
|
||||
/* If the character that we just sent was a linefeed,
|
||||
* then send a carriage return as well.
|
||||
*/
|
||||
|
||||
teq r0, #'\n'
|
||||
moveq r0, #'\r'
|
||||
beq 1b
|
||||
|
||||
/* And return */
|
||||
|
||||
mov pc, lr
|
||||
|
||||
105
arch/arm/src/moxart/moxart_systemreset.c
Normal file
105
arch/arm/src/moxart/moxart_systemreset.c
Normal file
@ -0,0 +1,105 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/moxart/moxart_systemreset.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
* Darcy Gong
|
||||
*
|
||||
* 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 NuttX 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 <stdint.h>
|
||||
|
||||
#include <nuttx/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
#define FTWDT010_LOAD 0x98500004
|
||||
#define FTWDT010_RESTART 0x98500008
|
||||
#define FTWDT010_CR 0x9850000C
|
||||
|
||||
/****************************************************************************
|
||||
* Public functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_systemreset
|
||||
*
|
||||
* Description:
|
||||
* Internal, reset logic.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_systemreset(void)
|
||||
{
|
||||
putreg32(0, FTWDT010_CR);
|
||||
putreg32(0, FTWDT010_LOAD);
|
||||
putreg32(0x5ab9, FTWDT010_RESTART); // Magic
|
||||
|
||||
putreg32(0x11, FTWDT010_CR);
|
||||
putreg32(0x13, FTWDT010_CR);
|
||||
|
||||
/* Wait for the reset */
|
||||
|
||||
for (;;);
|
||||
}
|
||||
|
||||
|
||||
/****************************************************************************
|
||||
* Name: board_reset
|
||||
*
|
||||
* Description:
|
||||
* Reset board. This function may or may not be supported by a
|
||||
* particular board architecture.
|
||||
*
|
||||
* Input Parameters:
|
||||
* status - Status information provided with the reset event. This
|
||||
* meaning of this status information is board-specific. If not used by
|
||||
* a board, the value zero may be provided in calls to board_reset.
|
||||
*
|
||||
* Returned Value:
|
||||
* If this function returns, then it was not possible to power-off the
|
||||
* board due to some constraints. The return value int this case is a
|
||||
* board-specific reason for the failure to shutdown.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_BOARDCTL_RESET
|
||||
int board_reset(int status)
|
||||
{
|
||||
up_systemreset();
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
151
arch/arm/src/moxart/moxart_timer.c
Normal file
151
arch/arm/src/moxart/moxart_timer.c
Normal file
@ -0,0 +1,151 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/moxart/moxart_timer.c
|
||||
* MoxaRT internal Timer Driver
|
||||
*
|
||||
* (C) 2010 by Harald Welte <laforge@gnumonks.org>
|
||||
* (C) 2011 by Stefan Richter <ichgeh@l--putt.de>
|
||||
*
|
||||
* This source code is derivated from Osmocom-BB project and was
|
||||
* relicensed as BSD with permission from original authors.
|
||||
*
|
||||
* 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 NuttX 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.
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
#define TM1_ADDR 0x98400000
|
||||
|
||||
enum timer_reg {
|
||||
COUNTER_TIMER = 0x00,
|
||||
CNTL_TIMER = 0x30,
|
||||
LOAD_TIMER = 0x04,
|
||||
MATCH1_TIMER = 0x08,
|
||||
MATCH2_TIMER = 0x0C,
|
||||
INTR_STATE_TIMER= 0x34,
|
||||
INTR_MASK_TIMER = 0x38,
|
||||
};
|
||||
|
||||
enum timer_ctl {
|
||||
TM1_ENABLE = (1 << 0),
|
||||
TM1_CLOCK = (1 << 1),
|
||||
TM1_OFENABLE = (1 << 5),
|
||||
TM1_UPDOWN = (1 << 9),
|
||||
};
|
||||
|
||||
enum timer_int {
|
||||
TM1_MATCH1 = (1 << 0),
|
||||
TM1_MATCH2 = (1 << 1),
|
||||
TM1_OVERFLOW = (1 << 2),
|
||||
};
|
||||
|
||||
/************************************************************
|
||||
* Global Functions
|
||||
************************************************************/
|
||||
|
||||
/************************************************************
|
||||
* Function: up_timerisr
|
||||
*
|
||||
* Description:
|
||||
* The timer ISR will perform a variety of services for
|
||||
* various portions of the systems.
|
||||
*
|
||||
************************************************************/
|
||||
|
||||
uint32_t inside = 0;
|
||||
static uint32_t cmp = BOARD_32KOSC_FREQUENCY / 1000;
|
||||
|
||||
int up_timerisr(int irq, uint32_t *regs)
|
||||
{
|
||||
uint32_t state;
|
||||
|
||||
inside++;
|
||||
/* Process timer interrupt */
|
||||
state = getreg32(TM1_ADDR + INTR_STATE_TIMER);
|
||||
state &= ~0x7;
|
||||
putreg32(state, TM1_ADDR + INTR_STATE_TIMER);
|
||||
|
||||
// *(volatile int *)0x98700000 ^= 0x8;
|
||||
*(volatile int *)0x98700000 |= 0x2;
|
||||
|
||||
/* Ready for the next interrupt */
|
||||
cmp = BOARD_32KOSC_FREQUENCY / 1000;
|
||||
putreg32(cmp, TM1_ADDR + COUNTER_TIMER);
|
||||
|
||||
sched_process_timer();
|
||||
|
||||
*(volatile int *)0x98700000 &= ~0x2;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/************************************************************
|
||||
* Function: up_timer_initialize
|
||||
*
|
||||
* Description:
|
||||
* Setup MoxaRT timer 0 to cause system ticks.
|
||||
*
|
||||
* This function is called during start-up to initialize
|
||||
* the timer interrupt.
|
||||
*
|
||||
************************************************************/
|
||||
|
||||
void up_timer_initialize(void)
|
||||
{
|
||||
uint32_t tmp;
|
||||
|
||||
// up_disable_irq(IRQ_SYSTIMER);
|
||||
|
||||
*(volatile int *)0x98700000 = 0x3f;
|
||||
|
||||
putreg32(0, TM1_ADDR + CNTL_TIMER);
|
||||
putreg32(0, TM1_ADDR + INTR_STATE_TIMER);
|
||||
putreg32(0x1ff, TM1_ADDR + INTR_MASK_TIMER);
|
||||
|
||||
/* Initialize to a known state */
|
||||
putreg32(cmp, TM1_ADDR + COUNTER_TIMER);
|
||||
putreg32(0, TM1_ADDR + LOAD_TIMER);
|
||||
putreg32(0, TM1_ADDR + MATCH1_TIMER);
|
||||
|
||||
/* Attach and enable the timer interrupt */
|
||||
irq_attach(IRQ_SYSTIMER, (xcpt_t)up_timerisr);
|
||||
up_enable_irq(IRQ_SYSTIMER);
|
||||
|
||||
/* Unmask IRQ */
|
||||
tmp = getreg32(TM1_ADDR + INTR_MASK_TIMER);
|
||||
tmp &= ~TM1_MATCH1;
|
||||
putreg32(tmp, TM1_ADDR + INTR_MASK_TIMER);
|
||||
|
||||
tmp = getreg32(TM1_ADDR + CNTL_TIMER);
|
||||
tmp |= TM1_CLOCK | TM1_ENABLE;
|
||||
putreg32(tmp, TM1_ADDR + CNTL_TIMER);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user