arch/arm/src/max326xx: Bring in some mostly standard, ARMv7-M, 'boilerplate' files.
This commit is contained in:
Gregory Nutt
parent
1fd9eb6069
commit
13d902a0a5
@ -50,9 +50,9 @@
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#include <arch/lpc54xx/chip.h>
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#include "chip/lpc54_memorymap.h"
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/* If the common ARMv7-M vector handling logic is used, then it expects the
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* following definition in this file that provides the number of supported external
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* interrupts which, for this architecture, is provided in the arch/lpc54xx/chip.h
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/* The common ARMv7-M vector handling logic expects the following definition in this
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* file. ARMV7M_PERIPHERAL_INTERRUPTS provides the number of supported external
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* interrupts which, for this architecture, is provided in the arch/lpc54xx/irq.h
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* header file.
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*/
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@ -1,5 +1,5 @@
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/****************************************************************************
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* arch/arm/src/lpc64628/lpc54_clockconfig.h
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* arch/arm/src/lpc54xx/lpc54_clockconfig.h
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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@ -40,8 +40,8 @@
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRCLPC54628_LPC54_CLOCKCONFIG_H
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#define __ARCH_ARM_SRCLPC54628_LPC54_CLOCKCONFIG_H
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#ifndef __ARCH_ARM_SRC_LPC54_LPC54_CLOCKCONFIG_H
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#define __ARCH_ARM_SRC_LPC54_LPC54_CLOCKCONFIG_H
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/****************************************************************************
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* Included Files
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@ -121,7 +121,7 @@ extern "C"
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* Name: lpc54_clockconfig
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*
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* Description:
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* Called to initialize the LPC54628. This does whatever setup is needed
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* Called to initialize the LPC54xx. This does whatever setup is needed
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* to put the MCU in a usable state. This includes the initialization of
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* clocking using the settings in board.h. This function also performs
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* other low-level chip as necessary.
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@ -136,4 +136,4 @@ void lpc54_clockconfig(FAR const struct pll_setup_s *pllsetup);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRCLPC54628_LPC54_CLOCKCONFIG_H */
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#endif /* __ARCH_ARM_SRC_LPC54_LPC54_CLOCKCONFIG_H */
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@ -1,5 +1,5 @@
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/****************************************************************************
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* arch/arm/src/lpc54/lpc54_irq.c
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* arch/arm/src/lpc54xx/lpc54_irq.c
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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@ -146,6 +146,8 @@ void arm_timer_initialize(void)
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/* Make sure that the SYSTICK clock source is set to use the SysTick
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* function clock (CLKSOURCE==0).
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*
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* REVISIT: This is over-writted with CLKSOURCE==1 below.
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*/
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regval = getreg32(NVIC_SYSTICK_CTRL);
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@ -97,7 +97,7 @@ config ARCH_FAMILY_MAX32660
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select MAX326XX_HAVE_WDOG
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select MAX326XX_HAVE_TIMER8
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# Peripheral support
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# Chip-Specific Peripheral support
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config MAX326XX_HAVE_WDOG
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bool
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@ -191,6 +191,16 @@ config MAX326XX_HAVE_ADC10
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bool
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default n
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# Driver support
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config MAX326XX_HAVE_I2CM
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bool
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default n
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config MAX326XX_HAVE_SPIM
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bool
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default n
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# Peripheral Driver Selections
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config MAX326XX_WDOG
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@ -278,15 +288,18 @@ config MAX326XX_PTENGINE
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config MAX326XX_SPIM0
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bool "SPI Master 0"
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default n
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select MAX326XX_HAVE_SPIM
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config MAX326XX_SPIM1
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bool "SPI Master 1"
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default n
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select MAX326XX_HAVE_SPIM
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config MAX326XX_SPIM2
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bool "SPI Master 2"
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default n
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depends on MAX326XX_HAVE_SPIM2
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select MAX326XX_HAVE_SPIM
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config MAX326XX_SPIS0
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bool "SPI Slave 0"
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@ -310,15 +323,18 @@ config MAX326XX_I2SS
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config MAX326XX_I2CM0
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bool "I2C Master 0"
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default n
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select MAX326XX_HAVE_I2CM
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config MAX326XX_I2CM1
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bool "I2C Master 1"
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default n
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select MAX326XX_HAVE_I2CM
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config MAX326XX_I2CM2
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bool "I2C Master 2"
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default n
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depends on MAX326XX_HAVE_I2CM2
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select MAX326XX_HAVE_I2CM
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config MAX326XX_I2CS0
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bool "I2C Slave 0"
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129
arch/arm/src/max326xx/Make.defs
Normal file
129
arch/arm/src/max326xx/Make.defs
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@ -0,0 +1,129 @@
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############################################################################
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# arch/arm/src/max326xx/Make.defs
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#
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# Copyright (C) 2018 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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HEAD_ASRC =
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CMN_ASRCS = up_saveusercontext.S up_fullcontextrestore.S up_switchcontext.S
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CMN_ASRCS += up_testset.S up_fetchadd.S vfork.S
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CMN_CSRCS = up_assert.c up_blocktask.c up_copyfullstate.c up_createstack.c
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CMN_CSRCS += up_doirq.c up_exit.c up_hardfault.c up_initialize.c
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CMN_CSRCS += up_initialstate.c up_interruptcontext.c up_mdelay.c
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CMN_CSRCS += up_memfault.c up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c
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CMN_CSRCS += up_releasepending.c up_releasestack.c up_reprioritizertr.c
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CMN_CSRCS += up_schedulesigaction.c up_sigdeliver.c up_stackframe.c
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CMN_CSRCS += up_svcall.c up_trigger_irq.c up_unblocktask.c up_udelay.c
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CMN_CSRCS += up_usestack.c up_vfork.c
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ifeq ($(CONFIG_ARMV7M_LAZYFPU),y)
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CMN_ASRCS += up_lazyexception.S
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else
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CMN_ASRCS += up_exception.S
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endif
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CMN_CSRCS += up_vectors.c
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ifeq ($(CONFIG_ARCH_RAMVECTORS),y)
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CMN_CSRCS += up_ramvec_initialize.c up_ramvec_attach.c
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endif
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ifeq ($(CONFIG_BUILD_PROTECTED),y)
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CMN_CSRCS += up_mpu.c up_task_start.c up_pthread_start.c
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ifneq ($(CONFIG_DISABLE_SIGNALS),y)
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CMN_CSRCS += up_signal_dispatch.c
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CMN_UASRCS += up_signal_handler.S
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endif
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endif
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ifeq ($(CONFIG_STACK_COLORATION),y)
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CMN_CSRCS += up_checkstack.c
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endif
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ifeq ($(CONFIG_ARCH_FPU),y)
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CMN_ASRCS += up_fpu.S
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CMN_CSRCS += up_copyarmstate.c
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endif
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CHIP_ASRCS =
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CHIP_CSRCS = max326_start.c max326_clockconfig.c max326_irq.c max326_clrpend.c
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CHIP_CSRCS += max326_allocateheap.c max326_lowputc.c max326_gpio.c
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ifneq ($(CONFIG_SCHED_TICKLESS),y)
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CHIP_CSRCS += max326_timerisr.c
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else
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CHIP_CSRCS += max326_tickless.c
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endif
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ifeq ($(CONFIG_BUILD_PROTECTED),y)
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CHIP_CSRCS += max326_userspace.c max326_mpuinit.c
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endif
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ifeq ($(CONFIG_MAX326_DMA),y)
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CHIP_CSRCS += max326_dma.c
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endif
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ifneq ($(CONFIG_ARCH_IDLE_CUSTOM),y)
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CHIP_CSRCS += max326_idle.c
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endif
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ifeq ($(CONFIG_MAX326_GPIOIRQ),y)
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CHIP_CSRCS += max326_gpioirq.c
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endif
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ifeq ($(CONFIG_RTC),y)
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CHIP_CSRCS += max326_rtc.c
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ifeq ($(CONFIG_RTC_DRIVER),y)
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CHIP_CSRCS += max326_rtc_lowerhalf.c
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endif
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endif
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ifeq ($(CONFIG_MAX326_WDT),y)
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CHIP_CSRCS += max326_wdt.c
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endif
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ifeq ($(CONFIG_MAX326_RNG),y)
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CHIP_CSRCS += max326_rng.c
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endif
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ifeq ($(CONFIG_MAX326_HAVE_USART),y)
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CHIP_CSRCS += max326_serial.c
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endif
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ifeq ($(CONFIG_MAX326XX_HAVE_I2CM),y)
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CHIP_CSRCS += max326_i2c_master.c
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endif
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ifeq ($(CONFIG_MAX326XX_HAVE_SPIM),y)
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CHIP_CSRCS += max326_spi_master.c
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endif
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74
arch/arm/src/max326xx/chip.h
Normal file
74
arch/arm/src/max326xx/chip.h
Normal file
@ -0,0 +1,74 @@
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/************************************************************************************
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* arch/arm/src/max326xx/chip.h
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*
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* Copyright (C) 2018 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_MAX326XX_CHIP_H
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#define __ARCH_ARM_SRC_MAX326XX_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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/* Include the memory map and the chip features and IRQ definition file. */
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#include <arch/irq.h>
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#include <arch/max326xx/chip.h>
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/* The common ARMv7-M vector handling logic expects the following definition in this
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* file. ARMV7M_PERIPHERAL_INTERRUPTS provides the number of supported external
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* interrupts which, for this architecture, is provided in the arch/max326xx/irq.h
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* header file.
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*/
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#define ARMV7M_PERIPHERAL_INTERRUPTS MAX326_IRQ_NEXTINT
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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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* 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_MAX326XX_CHIP_H */
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107
arch/arm/src/max326xx/max326_clockconfig.h
Normal file
107
arch/arm/src/max326xx/max326_clockconfig.h
Normal file
@ -0,0 +1,107 @@
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/****************************************************************************
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* arch/arm/src/max326xx/max326_clockconfig.h
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*
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* Copyright (C) 2018 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
|
||||
* 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
|
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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
|
||||
* 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
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* 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_MAX326XX_MAX326_CLOCKCONFIG_H
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#define __ARCH_ARM_SRC_MAX326XX_MAX326_CLOCKCONFIG_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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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* This structure can be used to define a clock configuration. */
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struct clock_setup_s
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{
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};
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__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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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: max326_clockconfig
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*
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* Description:
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* Called to initialize the MAX3266xx. This does whatever setup is needed
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* to put the MCU in a usable state. This includes the initialization of
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* clocking using the settings in board.h. This function also performs
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* other low-level chip as necessary.
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*
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*****************************************************************************/
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void max326_clockconfig(FAR const struct clock_setup_s *clocksetup);
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/****************************************************************************
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* Name: max326_cpu_frequency
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*
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* Description:
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* Return the current CPU frequency.
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*
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*****************************************************************************/
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uint32_t max326_cpu_frequency(void);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_ARM_SRC_MAX326XX_MAX326_CLOCKCONFIG_H */
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81
arch/arm/src/max326xx/max326_clrpend.c
Normal file
81
arch/arm/src/max326xx/max326_clrpend.c
Normal file
@ -0,0 +1,81 @@
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/****************************************************************************
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* arch/arm/src/max326/max326_clrpend.c
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*
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* Copyright (C) 2018 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
|
||||
* 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 <arch/irq.h>
|
||||
|
||||
#include "nvic.h"
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "max326_irq.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_clrpend
|
||||
*
|
||||
* Description:
|
||||
* Clear a pending interrupt at the NVIC. This does not seem to be required
|
||||
* for most interrupts. Don't know why...
|
||||
*
|
||||
* This function is logically a part of max326_irq.c, but I will keep it in
|
||||
* a separate file so that it will not increase the footprint on MAX326xx
|
||||
* platforms that do not need this function.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void max326_clrpend(int irq)
|
||||
{
|
||||
/* Check for external interrupt */
|
||||
|
||||
if (irq >= MAX326_IRQ_EXTINT)
|
||||
{
|
||||
if (irq < (MAX326_IRQ_EXTINT + 32))
|
||||
{
|
||||
putreg32(1 << (irq - MAX326_IRQ_EXTINT), NVIC_IRQ0_31_CLRPEND);
|
||||
}
|
||||
else if (irq < MAX326_IRQ_NIRQS)
|
||||
{
|
||||
putreg32(1 << (irq - MAX326_IRQ_EXTINT - 32), NVIC_IRQ32_63_CLRPEND);
|
||||
}
|
||||
}
|
||||
}
|
||||
129
arch/arm/src/max326xx/max326_config.h
Normal file
129
arch/arm/src/max326xx/max326_config.h
Normal file
@ -0,0 +1,129 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/max326xx/max326_config.h
|
||||
*
|
||||
* Copyright (C) 2018 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.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_MAX326XX_MAX326_CONFIG_H
|
||||
#define __ARCH_ARM_SRC_MAX326XX_MAX326_CONFIG_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "chip.h"
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
|
||||
/* Configuration *********************************************************************/
|
||||
|
||||
/* Check if we have a UART device */
|
||||
|
||||
#if MAX326_NUART < 4
|
||||
# undef CONFIG_MAX326XX_UART3
|
||||
#if MAX326_NUART < 3
|
||||
# undef CONFIG_MAX326XX_UART2
|
||||
#if MAX326_NUART < 2
|
||||
# undef CONFIG_MAX326XX_UART1
|
||||
#if MAX326_NUART < 1
|
||||
# undef CONFIG_MAX326XX_UART0
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#undef HAVE_UART_DEVICE
|
||||
|
||||
#if defined(CONFIG_MAX326XX_UART0) || CONFIG_MAX326XX_UART3(HAVE_UART1) || \
|
||||
defined(CONFIG_MAX326XX_UART1) || defined(CONFIG_MAX326XX_UART3))
|
||||
# define HAVE_UART_DEVICE 1
|
||||
#endif
|
||||
|
||||
/* Is there a serial console? There should be at most one defined. It could be on
|
||||
* any UARTn, n=0,1,2,3
|
||||
*/
|
||||
|
||||
#undef HAVE_UART_CONSOLE
|
||||
|
||||
#if defined(CONFIG_UART0_SERIAL_CONSOLE) && defined(HAVE_UART0)
|
||||
# undef CONFIG_UART1_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART2_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART3_SERIAL_CONSOLE
|
||||
# define HAVE_UART_CONSOLE 1
|
||||
#elif defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(HAVE_UART1)
|
||||
# undef CONFIG_UART0_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART2_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART3_SERIAL_CONSOLE
|
||||
# define HAVE_UART_CONSOLE 1
|
||||
#elif defined(CONFIG_UART2_SERIAL_CONSOLE) && defined(HAVE_UART2)
|
||||
# undef CONFIG_UART0_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART1_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART3_SERIAL_CONSOLE
|
||||
# define HAVE_UART_CONSOLE 1
|
||||
#elif defined(CONFIG_UART3_SERIAL_CONSOLE) && defined(HAVE_UART3)
|
||||
# undef CONFIG_UART0_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART1_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART2_SERIAL_CONSOLE
|
||||
# define HAVE_UART_CONSOLE 1
|
||||
#else
|
||||
# ifdef CONFIG_DEV_CONSOLE
|
||||
# warning "No valid CONFIG_[LP]UART[n]_SERIAL_CONSOLE Setting"
|
||||
# endif
|
||||
# undef CONFIG_UART0_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART1_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART2_SERIAL_CONSOLE
|
||||
# undef CONFIG_UART3_SERIAL_CONSOLE
|
||||
#endif
|
||||
|
||||
/* Check UART flow control (Not yet supported) */
|
||||
|
||||
# undef CONFIG_UART0_FLOWCONTROL
|
||||
# undef CONFIG_UART1_FLOWCONTROL
|
||||
# undef CONFIG_UART2_FLOWCONTROL
|
||||
# undef CONFIG_UART3_FLOWCONTROL
|
||||
# undef CONFIG_UART4_FLOWCONTROL
|
||||
# undef CONFIG_UART5_FLOWCONTROL
|
||||
# undef CONFIG_UART6_FLOWCONTROL
|
||||
# undef CONFIG_UART7_FLOWCONTROL
|
||||
# undef CONFIG_UART8_FLOWCONTROL
|
||||
# undef CONFIG_UART9_FLOWCONTROL
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_MAX326XX_MAX326_CONFIG_H */
|
||||
185
arch/arm/src/max326xx/max326_idle.c
Normal file
185
arch/arm/src/max326xx/max326_idle.c
Normal file
@ -0,0 +1,185 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326/max326_idle.c
|
||||
*
|
||||
* Copyright (C) 2018 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 <arch/board/board.h>
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/board.h>
|
||||
#include <nuttx/power/pm.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Does the board support an IDLE LED to indicate that the board is in the
|
||||
* IDLE state?
|
||||
*/
|
||||
|
||||
#if defined(CONFIG_ARCH_LEDS) && defined(LED_IDLE)
|
||||
# define BEGIN_IDLE() board_autoled_on(LED_IDLE)
|
||||
# define END_IDLE() board_autoled_off(LED_IDLE)
|
||||
#else
|
||||
# define BEGIN_IDLE()
|
||||
# define END_IDLE()
|
||||
#endif
|
||||
|
||||
#define PM_IDLE_DOMAIN 0 /* Revisit */
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_idlepm
|
||||
*
|
||||
* Description:
|
||||
* Perform IDLE state power management.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static void up_idlepm(void)
|
||||
{
|
||||
static enum pm_state_e oldstate = PM_NORMAL;
|
||||
enum pm_state_e newstate;
|
||||
irqstate_t flags;
|
||||
int ret;
|
||||
|
||||
/* Decide, which power saving level can be obtained */
|
||||
|
||||
newstate = pm_checkstate(PM_IDLE_DOMAIN);
|
||||
|
||||
/* Check for state changes */
|
||||
|
||||
if (newstate != oldstate)
|
||||
{
|
||||
flags = enter_critical_section();
|
||||
|
||||
/* Perform board-specific, state-dependent logic here */
|
||||
|
||||
_info("newstate= %d oldstate=%d\n", newstate, oldstate);
|
||||
|
||||
/* Then force the global state change */
|
||||
|
||||
ret = pm_changestate(PM_IDLE_DOMAIN, newstate);
|
||||
if (ret < 0)
|
||||
{
|
||||
/* The new state change failed, revert to the preceding state */
|
||||
|
||||
(void)pm_changestate(PM_IDLE_DOMAIN, oldstate);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Save the new state */
|
||||
|
||||
oldstate = newstate;
|
||||
}
|
||||
|
||||
/* MCU-specific power management logic */
|
||||
|
||||
switch (newstate)
|
||||
{
|
||||
case PM_NORMAL:
|
||||
break;
|
||||
|
||||
case PM_IDLE:
|
||||
break;
|
||||
|
||||
case PM_STANDBY:
|
||||
max326_pmstandby(true);
|
||||
break;
|
||||
|
||||
case PM_SLEEP:
|
||||
(void)max326_pmsleep();
|
||||
break;
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
leave_critical_section(flags);
|
||||
}
|
||||
}
|
||||
#else
|
||||
# define up_idlepm()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* 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
|
||||
|
||||
/* Perform IDLE mode power management */
|
||||
|
||||
up_idlepm();
|
||||
|
||||
/* Sleep until an interrupt occurs to save power */
|
||||
|
||||
BEGIN_IDLE();
|
||||
asm("WFI");
|
||||
END_IDLE();
|
||||
#endif
|
||||
}
|
||||
562
arch/arm/src/max326xx/max326_irq.c
Normal file
562
arch/arm/src/max326xx/max326_irq.c
Normal file
@ -0,0 +1,562 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326xx/max326_irq.c
|
||||
*
|
||||
* Copyright (C) 2018 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 <stdint.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/irq.h>
|
||||
|
||||
#include "chip.h"
|
||||
#include "nvic.h"
|
||||
#include "ram_vectors.h"
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
#include "max326_gpio.h"
|
||||
#include "max326_irq.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Get a 32-bit version of the default priority */
|
||||
|
||||
#define DEFPRIORITY32 \
|
||||
(NVIC_SYSH_PRIORITY_DEFAULT << 24 | NVIC_SYSH_PRIORITY_DEFAULT << 16 | \
|
||||
NVIC_SYSH_PRIORITY_DEFAULT << 8 | NVIC_SYSH_PRIORITY_DEFAULT)
|
||||
|
||||
/* Given the address of a NVIC ENABLE register, this is the offset to
|
||||
* the corresponding CLEAR ENABLE register.
|
||||
*/
|
||||
|
||||
#define NVIC_ENA_OFFSET (0)
|
||||
#define NVIC_CLRENA_OFFSET (NVIC_IRQ0_31_CLEAR - NVIC_IRQ0_31_ENABLE)
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/* g_current_regs[] holds a references to the current interrupt level
|
||||
* register storage structure. If is non-NULL only during interrupt
|
||||
* processing. Access to g_current_regs[] must be through the macro
|
||||
* CURRENT_REGS for portability.
|
||||
*/
|
||||
|
||||
volatile uint32_t *g_current_regs[1];
|
||||
|
||||
/* This is the address of the exception vector table (determined by the
|
||||
* linker script).
|
||||
*/
|
||||
|
||||
extern uint32_t _vectors[];
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_dumpnvic
|
||||
*
|
||||
* Description:
|
||||
* Dump some interesting NVIC registers
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_DEBUG_IRQ_INFO)
|
||||
static void max326_dumpnvic(const char *msg, int irq)
|
||||
{
|
||||
irqstate_t flags;
|
||||
|
||||
flags = enter_critical_section();
|
||||
|
||||
irqinfo("NVIC (%s, irq=%d):\n", msg, irq);
|
||||
irqinfo(" INTCTRL: %08x VECTAB: %08x\n",
|
||||
getreg32(NVIC_INTCTRL), getreg32(NVIC_VECTAB));
|
||||
#if 0
|
||||
irqinfo(" SYSH ENABLE MEMFAULT: %08x BUSFAULT: %08x USGFAULT: %08x SYSTICK: %08x\n",
|
||||
getreg32(NVIC_SYSHCON_MEMFAULTENA), getreg32(NVIC_SYSHCON_BUSFAULTENA),
|
||||
getreg32(NVIC_SYSHCON_USGFAULTENA), getreg32(NVIC_SYSTICK_CTRL_ENABLE));
|
||||
#endif
|
||||
irqinfo(" IRQ ENABLE: %08x %08x\n",
|
||||
getreg32(NVIC_IRQ0_31_ENABLE), getreg32(NVIC_IRQ32_63_ENABLE));
|
||||
irqinfo(" SYSH_PRIO: %08x %08x %08x\n",
|
||||
getreg32(NVIC_SYSH4_7_PRIORITY), getreg32(NVIC_SYSH8_11_PRIORITY),
|
||||
getreg32(NVIC_SYSH12_15_PRIORITY));
|
||||
irqinfo(" IRQ PRIO: %08x %08x %08x %08x\n",
|
||||
getreg32(NVIC_IRQ0_3_PRIORITY), getreg32(NVIC_IRQ4_7_PRIORITY),
|
||||
getreg32(NVIC_IRQ8_11_PRIORITY), getreg32(NVIC_IRQ12_15_PRIORITY));
|
||||
irqinfo(" %08x %08x %08x %08x\n",
|
||||
getreg32(NVIC_IRQ16_19_PRIORITY), getreg32(NVIC_IRQ20_23_PRIORITY),
|
||||
getreg32(NVIC_IRQ24_27_PRIORITY), getreg32(NVIC_IRQ28_31_PRIORITY));
|
||||
irqinfo(" %08x %08x %08x %08x\n",
|
||||
getreg32(NVIC_IRQ32_35_PRIORITY), getreg32(NVIC_IRQ36_39_PRIORITY),
|
||||
getreg32(NVIC_IRQ40_43_PRIORITY), getreg32(NVIC_IRQ44_47_PRIORITY));
|
||||
irqinfo(" %08x %08x %08x %08x\n",
|
||||
getreg32(NVIC_IRQ48_51_PRIORITY), getreg32(NVIC_IRQ52_55_PRIORITY),
|
||||
getreg32(NVIC_IRQ56_59_PRIORITY), getreg32(NVIC_IRQ60_63_PRIORITY));
|
||||
|
||||
leave_critical_section(flags);
|
||||
}
|
||||
#else
|
||||
# define max326_dumpnvic(msg, irq)
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_nmi, max326_busfault, max326_usagefault, max326_pendsv,
|
||||
* max326_dbgmonitor, max326_pendsv, max326_reserved
|
||||
*
|
||||
* Description:
|
||||
* Handlers for various exceptions. None are handled and all are fatal
|
||||
* error conditions. The only advantage these provided over the default
|
||||
* unexpected interrupt handler is that they provide a diagnostic output.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_FEATURES
|
||||
static int max326_nmi(int irq, FAR void *context, FAR void *arg)
|
||||
{
|
||||
(void)up_irq_save();
|
||||
_err("PANIC!!! NMI received\n");
|
||||
PANIC();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max326_busfault(int irq, FAR void *context, FAR void *arg)
|
||||
{
|
||||
(void)up_irq_save();
|
||||
_err("PANIC!!! Bus fault recived\n");
|
||||
PANIC();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max326_usagefault(int irq, FAR void *context, FAR void *arg)
|
||||
{
|
||||
(void)up_irq_save();
|
||||
_err("PANIC!!! Usage fault received\n");
|
||||
PANIC();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max326_pendsv(int irq, FAR void *context, FAR void *arg)
|
||||
{
|
||||
(void)up_irq_save();
|
||||
_err("PANIC!!! PendSV received\n");
|
||||
PANIC();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max326_dbgmonitor(int irq, FAR void *context, FAR void *arg)
|
||||
{
|
||||
(void)up_irq_save();
|
||||
_err("PANIC!!! Debug Monitor received\n");
|
||||
PANIC();
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int max326_reserved(int irq, FAR void *context, FAR void *arg)
|
||||
{
|
||||
(void)up_irq_save();
|
||||
_err("PANIC!!! Reserved interrupt\n");
|
||||
PANIC();
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_prioritize_syscall
|
||||
*
|
||||
* Description:
|
||||
* Set the priority of an exception. This function may be needed
|
||||
* internally even if support for prioritized interrupts is not enabled.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARMV7M_USEBASEPRI
|
||||
static inline void max326_prioritize_syscall(int priority)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* SVCALL is system handler 11 */
|
||||
|
||||
regval = getreg32(NVIC_SYSH8_11_PRIORITY);
|
||||
regval &= ~NVIC_SYSH_PRIORITY_PR11_MASK;
|
||||
regval |= (priority << NVIC_SYSH_PRIORITY_PR11_SHIFT);
|
||||
putreg32(regval, NVIC_SYSH8_11_PRIORITY);
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_irqinfo
|
||||
*
|
||||
* Description:
|
||||
* Given an IRQ number, provide the register and bit setting to enable or
|
||||
* disable the irq.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
static int max326_irqinfo(int irq, uintptr_t *regaddr, uint32_t *bit,
|
||||
uintptr_t offset)
|
||||
{
|
||||
int n;
|
||||
|
||||
DEBUGASSERT(irq >= MAX326_IRQ_NMI && irq < NR_IRQS);
|
||||
|
||||
/* Check for external interrupt */
|
||||
|
||||
if (irq >= MAX326_IRQ_EXTINT)
|
||||
{
|
||||
n = irq - MAX326_IRQ_EXTINT;
|
||||
*regaddr = NVIC_IRQ_ENABLE(n) + offset;
|
||||
*bit = (uint32_t)1 << (n & 0x1f);
|
||||
}
|
||||
|
||||
/* Handle processor exceptions. Only a few can be disabled */
|
||||
|
||||
else
|
||||
{
|
||||
*regaddr = NVIC_SYSHCON;
|
||||
if (irq == MAX326_IRQ_MEMFAULT)
|
||||
{
|
||||
*bit = NVIC_SYSHCON_MEMFAULTENA;
|
||||
}
|
||||
else if (irq == MAX326_IRQ_BUSFAULT)
|
||||
{
|
||||
*bit = NVIC_SYSHCON_BUSFAULTENA;
|
||||
}
|
||||
else if (irq == MAX326_IRQ_USAGEFAULT)
|
||||
{
|
||||
*bit = NVIC_SYSHCON_USGFAULTENA;
|
||||
}
|
||||
else if (irq == MAX326_IRQ_SYSTICK)
|
||||
{
|
||||
*regaddr = NVIC_SYSTICK_CTRL;
|
||||
*bit = NVIC_SYSTICK_CTRL_ENABLE;
|
||||
}
|
||||
else
|
||||
{
|
||||
return ERROR; /* Invalid or unsupported exception */
|
||||
}
|
||||
}
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_irqinitialize
|
||||
*
|
||||
* Description:
|
||||
* Complete initialization of the interrupt system and enable normal,
|
||||
* interrupt processing.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_irqinitialize(void)
|
||||
{
|
||||
uint32_t regaddr;
|
||||
#if defined(CONFIG_DEBUG_FEATURES) && !defined(CONFIG_ARMV7M_USEBASEPRI)
|
||||
uint32_t regval;
|
||||
#endif
|
||||
int num_priority_registers;
|
||||
int i;
|
||||
|
||||
/* Disable all interrupts */
|
||||
|
||||
for (i = 0; i < MAX326_IRQ_NEXTINT; i += 32)
|
||||
{
|
||||
putreg32(0xffffffff, NVIC_IRQ_CLEAR(i));
|
||||
}
|
||||
|
||||
/* Make sure that we are using the correct vector table. The default
|
||||
* vector address is 0x0000:0000 but if we are executing code that is
|
||||
* positioned in SRAM or in external FLASH, then we may need to reset
|
||||
* the interrupt vector so that it refers to the table in SRAM or in
|
||||
* external FLASH.
|
||||
*/
|
||||
|
||||
putreg32((uint32_t)_vectors, NVIC_VECTAB);
|
||||
|
||||
#ifdef CONFIG_ARCH_RAMVECTORS
|
||||
/* If CONFIG_ARCH_RAMVECTORS is defined, then we are using a RAM-based
|
||||
* vector table that requires special initialization.
|
||||
*/
|
||||
|
||||
up_ramvec_initialize();
|
||||
#endif
|
||||
|
||||
/* Set all interrupts (and exceptions) to the default priority */
|
||||
|
||||
putreg32(DEFPRIORITY32, NVIC_SYSH4_7_PRIORITY);
|
||||
putreg32(DEFPRIORITY32, NVIC_SYSH8_11_PRIORITY);
|
||||
putreg32(DEFPRIORITY32, NVIC_SYSH12_15_PRIORITY);
|
||||
|
||||
/* The NVIC ICTR register (bits 0-4) holds the number of of interrupt
|
||||
* lines that the NVIC supports:
|
||||
*
|
||||
* 0 -> 32 interrupt lines, 8 priority registers
|
||||
* 1 -> 64 " " " ", 16 priority registers
|
||||
* 2 -> 96 " " " ", 32 priority registers
|
||||
* ...
|
||||
*/
|
||||
|
||||
num_priority_registers = (getreg32(NVIC_ICTR) + 1) * 8;
|
||||
|
||||
/* Now set all of the interrupt lines to the default priority */
|
||||
|
||||
regaddr = NVIC_IRQ0_3_PRIORITY;
|
||||
while (num_priority_registers--)
|
||||
{
|
||||
putreg32(DEFPRIORITY32, regaddr);
|
||||
regaddr += 4;
|
||||
}
|
||||
|
||||
/* currents_regs is non-NULL only while processing an interrupt */
|
||||
|
||||
CURRENT_REGS = NULL;
|
||||
|
||||
/* Attach the SVCall and Hard Fault exception handlers. The SVCall
|
||||
* exception is used for performing context switches; The Hard Fault
|
||||
* must also be caught because a SVCall may show up as a Hard Fault
|
||||
* under certain conditions.
|
||||
*/
|
||||
|
||||
irq_attach(MAX326_IRQ_SVCALL, up_svcall, NULL);
|
||||
irq_attach(MAX326_IRQ_HARDFAULT, up_hardfault, NULL);
|
||||
|
||||
/* Set the priority of the SVCall interrupt */
|
||||
|
||||
#ifdef CONFIG_ARCH_IRQPRIO
|
||||
/* up_prioritize_irq(MAX326_IRQ_PENDSV, NVIC_SYSH_PRIORITY_MIN); */
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ARMV7M_USEBASEPRI
|
||||
max326_prioritize_syscall(NVIC_SYSH_SVCALL_PRIORITY);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ARM_MPU
|
||||
/* If the MPU is enabled, then attach and enable the Memory Management
|
||||
* Fault handler.
|
||||
*/
|
||||
|
||||
irq_attach(MAX326_IRQ_MEMFAULT, up_memfault, NULL);
|
||||
up_enable_irq(MAX326_IRQ_MEMFAULT);
|
||||
#endif
|
||||
|
||||
/* Attach all other processor exceptions (except reset and sys tick) */
|
||||
|
||||
#ifdef CONFIG_DEBUG_FEATURES
|
||||
irq_attach(MAX326_IRQ_NMI, max326_nmi, NULL);
|
||||
#ifndef CONFIG_ARM_MPU
|
||||
irq_attach(MAX326_IRQ_MEMFAULT, up_memfault, NULL);
|
||||
#endif
|
||||
irq_attach(MAX326_IRQ_BUSFAULT, max326_busfault, NULL);
|
||||
irq_attach(MAX326_IRQ_USAGEFAULT, max326_usagefault, NULL);
|
||||
irq_attach(MAX326_IRQ_PENDSV, max326_pendsv, NULL);
|
||||
irq_attach(MAX326_IRQ_DBGMONITOR, max326_dbgmonitor, NULL);
|
||||
irq_attach(MAX326_IRQ_RESERVED, max326_reserved, NULL);
|
||||
#endif
|
||||
|
||||
max326_dumpnvic("initial", MAX326_IRQ_NIRQS);
|
||||
|
||||
#if defined(CONFIG_DEBUG_FEATURES) && !defined(CONFIG_ARMV7M_USEBASEPRI)
|
||||
/* If a debugger is connected, try to prevent it from catching hardfaults.
|
||||
* If CONFIG_ARMV7M_USEBASEPRI, no hardfaults are expected in normal
|
||||
* operation.
|
||||
*/
|
||||
|
||||
regval = getreg32(NVIC_DEMCR);
|
||||
regval &= ~NVIC_DEMCR_VCHARDERR;
|
||||
putreg32(regval, NVIC_DEMCR);
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_MAX326_GPIOIRQ
|
||||
/* Initialize GPIO interrupts */
|
||||
|
||||
max326_gpio_irqinitialize();
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SUPPRESS_INTERRUPTS
|
||||
/* And finally, enable interrupts */
|
||||
|
||||
up_irq_enable();
|
||||
#endif
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_disable_irq
|
||||
*
|
||||
* Description:
|
||||
* Disable the IRQ specified by 'irq'
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_disable_irq(int irq)
|
||||
{
|
||||
uintptr_t regaddr;
|
||||
uint32_t regval;
|
||||
uint32_t bit;
|
||||
|
||||
if (max326_irqinfo(irq, ®addr, &bit, NVIC_CLRENA_OFFSET) == 0)
|
||||
{
|
||||
/* Modify the appropriate bit in the register to disable the interrupt.
|
||||
* For normal interrupts, we need to set the bit in the associated
|
||||
* Interrupt Clear Enable register. For other exceptions, we need to
|
||||
* clear the bit in the System Handler Control and State Register.
|
||||
*/
|
||||
|
||||
if (irq >= MAX326_IRQ_EXTINT)
|
||||
{
|
||||
putreg32(bit, regaddr);
|
||||
}
|
||||
else
|
||||
{
|
||||
regval = getreg32(regaddr);
|
||||
regval &= ~bit;
|
||||
putreg32(regval, regaddr);
|
||||
}
|
||||
}
|
||||
|
||||
max326_dumpnvic("disable", irq);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_enable_irq
|
||||
*
|
||||
* Description:
|
||||
* Enable the IRQ specified by 'irq'
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_enable_irq(int irq)
|
||||
{
|
||||
uintptr_t regaddr;
|
||||
uint32_t regval;
|
||||
uint32_t bit;
|
||||
|
||||
if (max326_irqinfo(irq, ®addr, &bit, NVIC_ENA_OFFSET) == 0)
|
||||
{
|
||||
/* Modify the appropriate bit in the register to enable the interrupt.
|
||||
* For normal interrupts, we need to set the bit in the associated
|
||||
* Interrupt Set Enable register. For other exceptions, we need to
|
||||
* set the bit in the System Handler Control and State Register.
|
||||
*/
|
||||
|
||||
if (irq >= MAX326_IRQ_EXTINT)
|
||||
{
|
||||
putreg32(bit, regaddr);
|
||||
}
|
||||
else
|
||||
{
|
||||
regval = getreg32(regaddr);
|
||||
regval |= bit;
|
||||
putreg32(regval, regaddr);
|
||||
}
|
||||
}
|
||||
|
||||
max326_dumpnvic("enable", irq);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_ack_irq
|
||||
*
|
||||
* Description:
|
||||
* Acknowledge the IRQ
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_ack_irq(int irq)
|
||||
{
|
||||
max326_clrpend(irq);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_prioritize_irq
|
||||
*
|
||||
* Description:
|
||||
* Set the priority of an IRQ.
|
||||
*
|
||||
* Since this API is not supported on all architectures, it should be
|
||||
* avoided in common implementations where possible.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_IRQPRIO
|
||||
int up_prioritize_irq(int irq, int priority)
|
||||
{
|
||||
uint32_t regaddr;
|
||||
uint32_t regval;
|
||||
int shift;
|
||||
|
||||
DEBUGASSERT(irq >= MAX326_IRQ_MEMFAULT && irq < NR_IRQS &&
|
||||
(unsigned)priority <= NVIC_SYSH_PRIORITY_MIN);
|
||||
|
||||
if (irq < MAX326_IRQ_EXTINT)
|
||||
{
|
||||
/* NVIC_SYSH_PRIORITY() maps {0..15} to one of three priority
|
||||
* registers (0-3 are invalid)
|
||||
*/
|
||||
|
||||
regaddr = NVIC_SYSH_PRIORITY(irq);
|
||||
irq -= 4;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* NVIC_IRQ_PRIORITY() maps {0..} to one of many priority registers */
|
||||
|
||||
irq -= MAX326_IRQ_EXTINT;
|
||||
regaddr = NVIC_IRQ_PRIORITY(irq);
|
||||
}
|
||||
|
||||
regval = getreg32(regaddr);
|
||||
shift = ((irq & 3) << 3);
|
||||
regval &= ~(0xff << shift);
|
||||
regval |= (priority << shift);
|
||||
putreg32(regval, regaddr);
|
||||
|
||||
max326_dumpnvic("prioritize", irq);
|
||||
return OK;
|
||||
}
|
||||
#endif
|
||||
60
arch/arm/src/max326xx/max326_irq.h
Normal file
60
arch/arm/src/max326xx/max326_irq.h
Normal file
@ -0,0 +1,60 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326xx/max326_irq.h
|
||||
*
|
||||
* Copyright (C) 2018 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_MAX326XX_MAX326_IRQ_H
|
||||
#define __ARCH_ARM_SRC_MAX326XX_MAX326_IRQ_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_clrpend
|
||||
*
|
||||
* Description:
|
||||
* Clear a pending interrupt at the NVIC. This does not seem to be
|
||||
* required for most interrupts.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void max326_clrpend(int irq);
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_MAX326XX_MAX326_IRQ_H */
|
||||
115
arch/arm/src/max326xx/max326_mpuinit.c
Normal file
115
arch/arm/src/max326xx/max326_mpuinit.c
Normal file
@ -0,0 +1,115 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326xx/max326_mpuinit.c
|
||||
*
|
||||
* Copyright (C) 2018 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 <assert.h>
|
||||
|
||||
#include <nuttx/userspace.h>
|
||||
|
||||
#include "mpu.h"
|
||||
#include "max326_mpuinit.h"
|
||||
|
||||
#if defined(CONFIG_BUILD_PROTECTED) && defined(CONFIG_ARM_MPU)
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef MAX
|
||||
# define MAX(a,b) a > b ? a : b
|
||||
#endif
|
||||
|
||||
#ifndef MIN
|
||||
# define MIN(a,b) a < b ? a : b
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_mpuinitialize
|
||||
*
|
||||
* Description:
|
||||
* Configure the MPU to permit user-space access to only restricted SAM3U
|
||||
* resources.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void max326_mpuinitialize(void)
|
||||
{
|
||||
uintptr_t datastart = MIN(USERSPACE->us_datastart, USERSPACE->us_bssstart);
|
||||
uintptr_t dataend = MAX(USERSPACE->us_dataend, USERSPACE->us_bssend);
|
||||
|
||||
DEBUGASSERT(USERSPACE->us_textend >= USERSPACE->us_textstart &&
|
||||
dataend >= datastart);
|
||||
|
||||
/* Show MPU information */
|
||||
|
||||
mpu_showtype();
|
||||
|
||||
/* Configure user flash and SRAM space */
|
||||
|
||||
mpu_user_flash(USERSPACE->us_textstart,
|
||||
USERSPACE->us_textend - USERSPACE->us_textstart);
|
||||
|
||||
mpu_user_intsram(datastart, dataend - datastart);
|
||||
|
||||
/* Then enable the MPU */
|
||||
|
||||
mpu_control(true, false, true);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_mpu_uheap
|
||||
*
|
||||
* Description:
|
||||
* Map the user-heap region.
|
||||
*
|
||||
* This logic may need an extension to handle external SDRAM).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void max326_mpu_uheap(uintptr_t start, size_t size)
|
||||
{
|
||||
mpu_user_intsram(start, size);
|
||||
}
|
||||
|
||||
#endif /* CONFIG_BUILD_PROTECTED && CONFIG_ARM_MPU */
|
||||
78
arch/arm/src/max326xx/max326_mpuinit.h
Normal file
78
arch/arm/src/max326xx/max326_mpuinit.h
Normal file
@ -0,0 +1,78 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/max326xx/max326_mpuinit.h
|
||||
*
|
||||
* Copyright (C) 2018 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.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_MAX326XX_MAX326_MPUINIT_H
|
||||
#define __ARCH_ARM_SRC_MAX326XX_MAX326_MPUINIT_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/************************************************************************************
|
||||
* Public Function Prototypes
|
||||
************************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_mpuinitialize
|
||||
*
|
||||
* Description:
|
||||
* Configure the MPU to permit user-space access to only unrestricted MCU
|
||||
* resources.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
void max326_mpuinitialize(void);
|
||||
#else
|
||||
# define max326_mpuinitialize()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_mpu_uheap
|
||||
*
|
||||
* Description:
|
||||
* Map the user heap region.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
void max326_mpu_uheap(uintptr_t start, size_t size);
|
||||
#else
|
||||
# define max326_mpu_uheap(start,size)
|
||||
#endif
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_MAX326XX_MAX326_MPUINIT_H */
|
||||
280
arch/arm/src/max326xx/max326_start.c
Normal file
280
arch/arm/src/max326xx/max326_start.c
Normal file
@ -0,0 +1,280 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326xx/max326_start.c
|
||||
*
|
||||
* Copyright (C) 2017 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdint.h>
|
||||
#include <assert.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/init.h>
|
||||
#include <arch/board/board.h>
|
||||
#include <arch/irq.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "up_internal.h"
|
||||
#include "nvic.h"
|
||||
|
||||
#include "chip/max326_syscon.h"
|
||||
#include "max326_clockconfig.h"
|
||||
#include "max326_userspace.h"
|
||||
#include "max326_lowputc.h"
|
||||
#include "max326_serial.h"
|
||||
#include "max326_start.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: showprogress
|
||||
*
|
||||
* Description:
|
||||
* Print a character on the UART to show boot status.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_FEATURES
|
||||
# define showprogress(c) up_lowputc(c)
|
||||
#else
|
||||
# define showprogress(c)
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/* This describes the initial PLL configuration */
|
||||
|
||||
static const struct pll_setup_s g_initial_pll_setup =
|
||||
{
|
||||
.pllclksel = BOARD_PLL_CLKSEL,
|
||||
.pllctrl = SYSCON_SYSPLLCTRL_SELR(BOARD_PLL_SELR) |
|
||||
SYSCON_SYSPLLCTRL_SELI(BOARD_PLL_SELI) |
|
||||
SYSCON_SYSPLLCTRL_SELP(BOARD_PLL_SELP),
|
||||
.pllmdec = (SYSCON_SYSPLLMDEC_MDEC(BOARD_PLL_MDEC)),
|
||||
.pllndec = (SYSCON_SYSPLLNDEC_NDEC(BOARD_PLL_NDEC)),
|
||||
.pllpdec = (SYSCON_SYSPLLPDEC_PDEC(BOARD_PLL_PDEC)),
|
||||
.pllfout = BOARD_PLL_FOUT,
|
||||
.pllflags = PLL_SETUPFLAG_WAITLOCK | PLL_SETUPFLAG_POWERUP,
|
||||
.ahbdiv = SYSCON_AHBCLKDIV_DIV(BOARD_AHBCLKDIV)
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_fpuconfig
|
||||
*
|
||||
* Description:
|
||||
* Configure the FPU. Relative bit settings:
|
||||
*
|
||||
* CPACR: Enables access to CP10 and CP11
|
||||
* CONTROL.FPCA: Determines whether the FP extension is active in the
|
||||
* current context:
|
||||
* FPCCR.ASPEN: Enables automatic FP state preservation, then the
|
||||
* processor sets this bit to 1 on successful completion of any FP
|
||||
* instruction.
|
||||
* FPCCR.LSPEN: Enables lazy context save of FP state. When this is
|
||||
* done, the processor reserves space on the stack for the FP state,
|
||||
* but does not save that state information to the stack.
|
||||
*
|
||||
* Software must not change the value of the ASPEN bit or LSPEN bit while either:
|
||||
* - the CPACR permits access to CP10 and CP11, that give access to the FP
|
||||
* extension, or
|
||||
* - the CONTROL.FPCA bit is set to 1
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_ARCH_FPU
|
||||
#ifndef CONFIG_ARMV7M_LAZYFPU
|
||||
static inline void max326_fpuconfig(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* Set CONTROL.FPCA so that we always get the extended context frame
|
||||
* with the volatile FP registers stacked above the basic context.
|
||||
*/
|
||||
|
||||
regval = getcontrol();
|
||||
regval |= (1 << 2);
|
||||
setcontrol(regval);
|
||||
|
||||
/* Ensure that FPCCR.LSPEN is disabled, so that we don't have to contend
|
||||
* with the lazy FP context save behavior. Clear FPCCR.ASPEN since we
|
||||
* are going to turn on CONTROL.FPCA for all contexts.
|
||||
*/
|
||||
|
||||
regval = getreg32(NVIC_FPCCR);
|
||||
regval &= ~((1 << 31) | (1 << 30));
|
||||
putreg32(regval, NVIC_FPCCR);
|
||||
|
||||
/* Enable full access to CP10 and CP11 */
|
||||
|
||||
regval = getreg32(NVIC_CPACR);
|
||||
regval |= ((3 << (2 * 10)) | (3 << (2 * 11)));
|
||||
putreg32(regval, NVIC_CPACR);
|
||||
}
|
||||
#else
|
||||
static inline void max326_fpuconfig(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* Clear CONTROL.FPCA so that we do not get the extended context frame
|
||||
* with the volatile FP registers stacked in the saved context.
|
||||
*/
|
||||
|
||||
regval = getcontrol();
|
||||
regval &= ~(1 << 2);
|
||||
setcontrol(regval);
|
||||
|
||||
/* Ensure that FPCCR.LSPEN is disabled, so that we don't have to contend
|
||||
* with the lazy FP context save behavior. Clear FPCCR.ASPEN since we
|
||||
* are going to keep CONTROL.FPCA off for all contexts.
|
||||
*/
|
||||
|
||||
regval = getreg32(NVIC_FPCCR);
|
||||
regval &= ~((1 << 31) | (1 << 30));
|
||||
putreg32(regval, NVIC_FPCCR);
|
||||
|
||||
/* Enable full access to CP10 and CP11 */
|
||||
|
||||
regval = getreg32(NVIC_CPACR);
|
||||
regval |= ((3 << (2 * 10)) | (3 << (2 * 11)));
|
||||
putreg32(regval, NVIC_CPACR);
|
||||
}
|
||||
#endif
|
||||
|
||||
#else
|
||||
# define max326_fpuconfig()
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: _start
|
||||
*
|
||||
* Description:
|
||||
* This is the reset entry point.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void __start(void)
|
||||
{
|
||||
const uint32_t *src;
|
||||
uint32_t *dest;
|
||||
uint32_t regval;
|
||||
|
||||
/* Make sure that interrupts are disabled */
|
||||
|
||||
__asm__ __volatile__ ("\tcpsid i\n");
|
||||
|
||||
/* Configure the clocking and the console uart so that we can get debug
|
||||
* output as soon as possible. NOTE: That this logic must not assume that
|
||||
* .bss or .data have been initialized.
|
||||
*/
|
||||
|
||||
max326_clockconfig(&g_initial_pll_setup);
|
||||
max326_lowsetup();
|
||||
showprogress('A');
|
||||
|
||||
/* Clear .bss. We'll do this inline (vs. calling memset) just to be
|
||||
* certain that there are no issues with the state of global variables.
|
||||
*/
|
||||
|
||||
for (dest = &_sbss; dest < &_ebss; )
|
||||
{
|
||||
*dest++ = 0;
|
||||
}
|
||||
|
||||
showprogress('B');
|
||||
|
||||
/* Move the initialized data section from his temporary holding spot in
|
||||
* FLASH into the correct place in SRAM. The correct place in SRAM is
|
||||
* give by _sdata and _edata. The temporary location is in FLASH at the
|
||||
* end of all of the other read-only data (.text, .rodata) at _eronly.
|
||||
*/
|
||||
|
||||
for (src = &_eronly, dest = &_sdata; dest < &_edata; )
|
||||
{
|
||||
*dest++ = *src++;
|
||||
}
|
||||
|
||||
showprogress('C');
|
||||
|
||||
/* Initialize the FPU (if configured) */
|
||||
|
||||
max326_fpuconfig();
|
||||
showprogress('D');
|
||||
|
||||
/* Perform early serial initialization */
|
||||
|
||||
#ifdef USE_EARLYSERIALINIT
|
||||
max326_earlyserialinit();
|
||||
#endif
|
||||
showprogress('E');
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
/* For the case of the separate user-/kernel-space build, perform whatever
|
||||
* platform specific initialization of the user memory is required.
|
||||
* Normally this just means initializing the user space .data and .bss
|
||||
* segments.
|
||||
*/
|
||||
|
||||
max326_userspace();
|
||||
showprogress('F');
|
||||
#endif
|
||||
|
||||
/* Initialize on-board resources */
|
||||
|
||||
max326_board_initialize();
|
||||
showprogress('G');
|
||||
|
||||
/* Enable the instruction cache */
|
||||
#warning Missing logic
|
||||
|
||||
/* Then start NuttX */
|
||||
|
||||
showprogress('\r');
|
||||
showprogress('\n');
|
||||
os_start();
|
||||
|
||||
/* Shouldn't get here */
|
||||
|
||||
for (; ; );
|
||||
}
|
||||
88
arch/arm/src/max326xx/max326_start.h
Normal file
88
arch/arm/src/max326xx/max326_start.h
Normal file
@ -0,0 +1,88 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/max326xx/max326_start.h
|
||||
*
|
||||
* Copyright (C) 2018 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.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_MAX326XX_MAX326_START_H
|
||||
#define __ARCH_ARM_SRC_MAX326XX_MAX326_START_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/compiler.h>
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "chip.h"
|
||||
|
||||
/************************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
/* g_idle_topstack: _sbss is the start of the BSS region as defined by the linker
|
||||
* script. _ebss lies at the end of the BSS region. The idle task stack starts at
|
||||
* the end of BSS and is of size CONFIG_IDLETHREAD_STACKSIZE. The IDLE thread is
|
||||
* the thread that the system boots on and, eventually, becomes the IDLE, do
|
||||
* nothing task that runs only when there is nothing else to run. The heap
|
||||
* continues from there until the end of memory. g_idle_topstack is a read-only
|
||||
* variable the provides this computed address.
|
||||
*/
|
||||
|
||||
extern const uintptr_t g_idle_topstack;
|
||||
|
||||
/************************************************************************************
|
||||
* Public Function Prototypes
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Name: max326_board_initialize
|
||||
*
|
||||
* Description:
|
||||
* All MAX326xx architectures must provide the following entry point. This entry
|
||||
* point is called early in the initialization -- after clocking and memory have
|
||||
* been configured but before caches have been enabled and before any devices have
|
||||
* been initialized.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
void max326_board_initialize(void);
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* __ARCH_ARM_SRC_MAX326XX_MAX326_START_H */
|
||||
164
arch/arm/src/max326xx/max326_timerisr.c
Normal file
164
arch/arm/src/max326xx/max326_timerisr.c
Normal file
@ -0,0 +1,164 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326xx/max326_timerisr.c
|
||||
*
|
||||
* Copyright (C) 2018 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 <stdint.h>
|
||||
#include <time.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "nvic.h"
|
||||
#include "clock/clock.h"
|
||||
#include "up_internal.h"
|
||||
#include "up_arch.h"
|
||||
#include "max326_clockconfig.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* The SysTick clock will may be clocked internally the processor clock
|
||||
* (CLKSOURCE==1). The SysTick Function clock is equal to:
|
||||
*
|
||||
* Fsystick = Fcpu / SYSTICKCLKDIV
|
||||
*
|
||||
* The desired timer interrupt frequency is provided by the definition
|
||||
* CLK_TCK (see include/time.h). CLK_TCK defines the desired number of
|
||||
* system clock ticks per second. That value is a user configurable setting
|
||||
* that defaults to 100 (100 ticks per second = 10 MS interval).
|
||||
*
|
||||
* reload = (Fsystick / CLK_TICK) - 1
|
||||
*
|
||||
* The resulting reload value should be as large as possible, but must be
|
||||
* less than 2^24:
|
||||
*
|
||||
* SYSTICKDIV > Fcpu / CLK_TCK / 2^24
|
||||
*/
|
||||
|
||||
#define SYSTICK_RELOAD ((max326_cpu_frequency() / CLK_TCK) - 1)
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Function: max326_timerisr
|
||||
*
|
||||
* Description:
|
||||
* The timer ISR will perform a variety of services for various portions
|
||||
* of the systems.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
static int max326_timerisr(int irq, uint32_t *regs, void *arg)
|
||||
{
|
||||
/* Process timer interrupt */
|
||||
|
||||
sched_process_timer();
|
||||
return 0;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Function: arm_timer_initialize
|
||||
*
|
||||
* Description:
|
||||
* This function is called during start-up to initialize
|
||||
* the timer interrupt.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void arm_timer_initialize(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* May be clocked internally by the system clock or the SysTick function
|
||||
* clock. Set the SysTick clock divider in the SYSCON_SYSTICK register.
|
||||
* Since this function is called early after reset, it is safe to assume
|
||||
* that the SysTick is disabled and so that no reset or halt actions are
|
||||
* necessary.
|
||||
*/
|
||||
|
||||
regval = (SYSCON_SYSTICKCLKDIV_DIV(BOARD_SYSTICKCLKDIV) |
|
||||
SYSCON_SYSTICKCLKDIV_REQFLAG);
|
||||
putreg32(regval, MAX326_SYSCON_SYSTICKCLKDIV);
|
||||
|
||||
/* The request flag will be cleared when the divider change is complete */
|
||||
|
||||
while ((getreg32(MAX326_SYSCON_SYSTICKCLKDIV) &
|
||||
SYSCON_SYSTICKCLKDIV_REQFLAG) != 0)
|
||||
{
|
||||
}
|
||||
|
||||
/* Make sure that the SYSTICK clock source is set to use the CPU clock
|
||||
* (CLKSOURCE==1).
|
||||
*
|
||||
* REVISIT: This is duplicate logic. The same setting is make below.
|
||||
*/
|
||||
|
||||
regval = getreg32(NVIC_SYSTICK_CTRL);
|
||||
regval |= NVIC_SYSTICK_CTRL_CLKSOURCE;
|
||||
putreg32(regval, NVIC_SYSTICK_CTRL);
|
||||
|
||||
/* Configure SysTick to interrupt at the requested rate */
|
||||
|
||||
regval = SYSTICK_RELOAD;
|
||||
DEBUGASSERT(regval < 0x01000000);
|
||||
|
||||
putreg32(regval, NVIC_SYSTICK_RELOAD);
|
||||
|
||||
/* Attach the timer interrupt vector */
|
||||
|
||||
(void)irq_attach(MAX326_IRQ_SYSTICK, (xcpt_t)max326_timerisr, NULL);
|
||||
|
||||
/* Enable SysTick interrupts */
|
||||
|
||||
putreg32((NVIC_SYSTICK_CTRL_CLKSOURCE | NVIC_SYSTICK_CTRL_TICKINT |
|
||||
NVIC_SYSTICK_CTRL_ENABLE), NVIC_SYSTICK_CTRL);
|
||||
|
||||
/* And enable the timer interrupt */
|
||||
|
||||
up_enable_irq(MAX326_IRQ_SYSTICK);
|
||||
}
|
||||
107
arch/arm/src/max326xx/max326_userspace.c
Normal file
107
arch/arm/src/max326xx/max326_userspace.c
Normal file
@ -0,0 +1,107 @@
|
||||
/****************************************************************************
|
||||
* arch/arm/src/max326xx/max326_userspace.c
|
||||
*
|
||||
* Copyright (C) 2018 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 <stdint.h>
|
||||
#include <assert.h>
|
||||
|
||||
#include <nuttx/userspace.h>
|
||||
|
||||
#include "max326_mpuinit.h"
|
||||
#include "max326_userspace.h"
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_userspace
|
||||
*
|
||||
* Description:
|
||||
* For the case of the separate user-/kernel-space build, perform whatever
|
||||
* platform specific initialization of the user memory is required.
|
||||
* Normally this just means initializing the user space .data and .bss
|
||||
* segments.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void max326_userspace(void)
|
||||
{
|
||||
uint8_t *src;
|
||||
uint8_t *dest;
|
||||
uint8_t *end;
|
||||
|
||||
/* Clear all of user-space .bss */
|
||||
|
||||
DEBUGASSERT(USERSPACE->us_bssstart != 0 && USERSPACE->us_bssend != 0 &&
|
||||
USERSPACE->us_bssstart <= USERSPACE->us_bssend);
|
||||
|
||||
dest = (uint8_t *)USERSPACE->us_bssstart;
|
||||
end = (uint8_t *)USERSPACE->us_bssend;
|
||||
|
||||
while (dest != end)
|
||||
{
|
||||
*dest++ = 0;
|
||||
}
|
||||
|
||||
/* Initialize all of user-space .data */
|
||||
|
||||
DEBUGASSERT(USERSPACE->us_datasource != 0 &&
|
||||
USERSPACE->us_datastart != 0 && USERSPACE->us_dataend != 0 &&
|
||||
USERSPACE->us_datastart <= USERSPACE->us_dataend);
|
||||
|
||||
src = (uint8_t *)USERSPACE->us_datasource;
|
||||
dest = (uint8_t *)USERSPACE->us_datastart;
|
||||
end = (uint8_t *)USERSPACE->us_dataend;
|
||||
|
||||
while (dest != end)
|
||||
{
|
||||
*dest++ = *src++;
|
||||
}
|
||||
|
||||
/* Configure the MPU to permit user-space access to its FLASH and RAM */
|
||||
|
||||
max326_mpuinitialize();
|
||||
}
|
||||
|
||||
#endif /* CONFIG_BUILD_PROTECTED */
|
||||
|
||||
64
arch/arm/src/max326xx/max326_userspace.h
Normal file
64
arch/arm/src/max326xx/max326_userspace.h
Normal file
@ -0,0 +1,64 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/max326xx/max326_userspace.h
|
||||
*
|
||||
* Copyright (C) 2018 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.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_MAX326XX_MAX326_USERSPACE_H
|
||||
#define __ARCH_ARM_SRC_MAX326XX_MAX326_USERSPACE_H
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/************************************************************************************
|
||||
* Public Function Prototypes
|
||||
************************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: max326_userspace
|
||||
*
|
||||
* Description:
|
||||
* For the case of the separate user-/kernel-space build, perform whatever
|
||||
* platform specific initialization of the user memory is required.
|
||||
* Normally this just means initializing the user space .data and .bss
|
||||
* segments.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_BUILD_PROTECTED
|
||||
void max326_userspace(void);
|
||||
#endif
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_MAX326XX_MAX326_USERSPACE_H */
|
||||
Loading…
Reference in New Issue
Block a user