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TMS570: Add a place holder for the TMS570. Not much there yet

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This commit is contained in:
Gregory Nutt 2015-12-14 16:38:05 -06:00
parent c1933a0814
commit 8fb76cf970
5 changed files with 571 additions and 0 deletions
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118
arch/arm/src/armv7-r/arm_signal_handler.S Normal file
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/****************************************************************************
* arch/arm/src/armv7-r/arm_signal_handler.S
*
* Copyright (C) 2015 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 <arch/syscall.h>
#if defined(CONFIG_BUILD_PROTECTED) && !defined(__KERNEL__)
/****************************************************************************
* File info
****************************************************************************/
.syntax unified
.thumb
.cpu cortex-r4
.file "arm_signal_handler.S"
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_signal_handler
*
* Description:
* This function is the user-space, signal handler trampoline function. It
* is called from up_signal_dispatch() in user-mode.
*
* R0-R3, R11 - volatile registers need not be preserved.
* R4-R10 - static registers must be preserved
* R12-R14 - LR and SP must be preserved
*
* Inputs:
* R0 = sighand
* The address user-space signal handling function
* R1-R3 = signo, info, and ucontext
* Standard arguments to be passed to the signal handling function.
*
* Return:
* None. This function does not return in the normal sense. It returns
* via the SYS_signal_handler_return (see svcall.h)
*
****************************************************************************/
.text
.thumb_func
.globl up_signal_handler
.type up_signal_handler, function
up_signal_handler:
/* Save some register */
push {lr} /* Save LR on the stack */
/* Call the signal handler */
mov ip, r0 /* IP=sighand */
mov r0, r1 /* R0=signo */
mov r1, r2 /* R1=info */
mov r2, r3 /* R2=ucontext */
blx ip /* Call the signal handler */
/* Restore the registers */
pop {r2} /* Recover LR in R2 */
mov lr, r2 /* Restore LR */
/* Execute the SYS_signal_handler_return SVCall (will not return) */
mov r0, #SYS_signal_handler_return
svc 0
nop
.size up_signal_handler, .-up_signal_handler
.end
#endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */

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arch/arm/src/tms570/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_CHIP_TMS570
comment "TMS570 Configuration Options"
# Chip Capabilities
# Summary configuratinos
# Chip Selection
#menu "TMS570 Peripheral Support"
# endmenu # TMS570 Peripheral Support
endif # ARCH_CHIP_TMS570

108
arch/arm/src/tms570/Make.defs Normal file
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############################################################################
# arch/arm/tms570/Make.defs
#
# Copyright (C) 2015 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 Gregory Nutt nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
# The vector table is the "head" object, i.e., the one that must forced into
# the link in order to draw in all of the other components
HEAD_ASRC = arm_vectortab.S
# Common assembly language files
CMN_ASRCS += arm_vectors.S arm_fpuconfig.S arm_fullcontextrestore.S
CMN_ASRCS += arm_saveusercontext.S arm_vectoraddrexcptn.S arm_vfork.S
CMN_ASRCS += cp15_coherent_dcache.S cp15_invalidate_dcache.S
CMN_ASRCS += cp15_clean_dcache.S cp15_flush_dcache.S cp15_invalidate_dcache_all.S
# Configuration dependent assembly language files
ifeq ($(CONFIG_ARCH_MEMCPY),y)
CMN_ASRCS += arm_memcpy.S
endif
# Common C source files
CMN_CSRCS = up_initialize.c up_idle.c up_interruptcontext.c up_exit.c
CMN_CSRCS += up_createstack.c up_releasestack.c up_usestack.c up_vfork.c
CMN_CSRCS += up_puts.c up_mdelay.c up_stackframe.c up_udelay.c
CMN_CSRCS += up_modifyreg8.c up_modifyreg16.c up_modifyreg32.c
CMN_CSRCS += arm_assert.c arm_blocktask.c arm_copyfullstate.c arm_dataabort.c
CMN_CSRCS += arm_doirq.c arm_initialstate.c arm_mmu.c arm_prefetchabort.c
CMN_CSRCS += arm_releasepending.c arm_reprioritizertr.c
CMN_CSRCS += arm_schedulesigaction.c arm_sigdeliver.c arm_syscall.c
CMN_CSRCS += arm_unblocktask.c arm_undefinedinsn.c
# Configuration dependent C files
ifeq ($(CONFIG_BUILD_PROTECTED),y)
CMN_CSRCS += arm_mpu.c up_task_start.c up_pthread_start.c
ifneq ($(CONFIG_DISABLE_SIGNALS),y)
CMN_CSRCS += arm_signal_dispatch.c
CMN_UASRCS += arm_signal_handler.S
endif
endif
ifeq ($(CONFIG_ARMV7R_L2CC_PL310),y)
CMN_CSRCS += arm_l2cc_pl310.c
endif
ifeq ($(CONFIG_ELF),y)
CMN_CSRCS += arm_elf.c arm_coherent_dcache.c
else ifeq ($(CONFIG_MODULE),y)
CMN_CSRCS += arm_elf.c arm_coherent_dcache.c
endif
ifeq ($(CONFIG_ARCH_FPU),y)
CMN_ASRCS += arm_savefpu.S arm_restorefpu.S
CMN_CSRCS += arm_copyarmstate.c
endif
ifeq ($(CONFIG_STACK_COLORATION),y)
CMN_CSRCS += up_checkstack.c
endif
# SAMA5-specific assembly language files
CHIP_ASRCS =
# SAMA5-specific C source files
CHIP_CSRCS = tms570_boot.c
# Configuration dependent C and assembly language files
ifneq ($(CONFIG_SCHED_TICKLESS),y)
CHIP_CSRCS += tms570_timerisr.c
endif

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arch/arm/src/tms570/chip.h Normal file
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/************************************************************************************
* arch/arm/src/tms570/chip.h
*
* Copyright (C) 2015 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_TMS570_CHIP_H
#define __ARCH_ARM_SRC_TMS570_CHIP_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <arch/tms570/chip.h>
#include "chip/tms570_memorymap.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* arch/arm/src/armv7-a/l2cc_pl310.h includes this file and expects it to provide the
* address of the L2CC-PL310 implementation.
*/
#define L2CC_VBASE SAM_L2CC_VSECTION
/* Cache line sizes (in bytes)for the SAVA5Dx */
#define ARMV7A_DCACHE_LINESIZE 32 /* 32 bytes (8 words) */
#define ARMV7A_ICACHE_LINESIZE 32 /* 32 bytes (8 words) */
#endif /* __ARCH_ARM_SRC_TMS570_CHIP_H */

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arch/arm/src/tms570/tms570_boot.c Normal file
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/****************************************************************************
* arch/arm/src/tms570/tms570_boot.c
*
* Copyright (C) 2015 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 <debug.h>
#include <arch/board/board.h>
#include "chip.h"
#include "arm.h"
#include "cache.h"
#include "fpu.h"
#include "up_internal.h"
#include "up_arch.h"
/****************************************************************************
* Public Data
****************************************************************************/
/* Symbols defined via the linker script */
extern uint32_t _vector_start; /* Beginning of vector block */
extern uint32_t _vector_end; /* End+1 of vector block */
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: tms570_vectorsize
*
* Description:
* Return the size of the vector data
*
****************************************************************************/
static inline size_t tms570_vectorsize(void)
{
uintptr_t src;
uintptr_t end;
src = (uintptr_t)&_vector_start;
end = (uintptr_t)&_vector_end;
return (size_t)(end - src);
}
/****************************************************************************
* Name: tms570_copyvectorblock
*
* Description:
* Copy the interrupt block to its final destination. Vectors are already
* positioned at the beginning of the text region and only need to be
* copied in the case where we are using high vectors or where the beginning
* of the text region cannot be remapped to address zero.
*
****************************************************************************/
#if !defined(CONFIG_ARCH_LOWVECTORS)
static void tms570_copyvectorblock(void)
{
uint32_t *src;
uint32_t *end;
uint32_t *dest;
/* Copy the vectors into ISRAM at the address that will be mapped to the vector
* address:
*
* SAM_VECTOR_PADDR - Unmapped, physical address of vector table in SRAM
* SAM_VECTOR_VSRAM - Virtual address of vector table in SRAM
* SAM_VECTOR_VADDR - Virtual address of vector table (0x00000000 or
* 0xffff0000)
*/
src = (uint32_t *)&_vector_start;
end = (uint32_t *)&_vector_end;
dest = (uint32_t *)SAM_VECTOR_VSRAM;
while (src < end)
{
*dest++ = *src++;
}
/* Flush the DCache to assure that the vector data is in physical in ISRAM */
arch_clean_dcache((uintptr_t)SAM_VECTOR_VSRAM,
(uintptr_t)SAM_VECTOR_VSRAM + tms570_vectorsize());
#endif
}
#else
/* Don't copy the vectors */
# define tms570_copyvectorblock()
#endif
/****************************************************************************
* Name: tms570_wdtdisable
*
* Description:
* Disable the watchdog timer.
*
****************************************************************************/
#ifndef CONFIG_TMS570_WDT
static inline void tms570_wdtdisable(void)
{
#warning Missing logic
}
#else
# define tms570_wdtdisable()
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: arm_boot
*
* Description:
* Complete boot operations started in arm_head.S
*
* Boot Sequence
*
* 1. The __start entry point in armv7-r/arm_head.S is invoked upon power-
* on reset.
* 2. __start prepares CPU for code execution.
* 3a. If CONFIG_BOOT_SDRAM_DATA is not defined, then __start will prepare
* memory resources by calling arm_data_initialize() and will then
* call this function.
* 3b. Otherwise, this function will be called without having initialized
* memory resources! We need to be very careful in this case. Here,
* this function will call tms570_boardinitialize() which, among other
* things, much initialize SDRAM memory. Upon return, this function
* will call arm_data_initialize() to initialize the memory resources
* 4. This function will initialize all TMS570-specific resources and
* return to __start.
* 4. _start will then branch to os_start() to start the operating system.
*
****************************************************************************/
void arm_boot(void)
{
#ifdef CONFIG_ARCH_RAMFUNCS
const uint32_t *src;
uint32_t *dest;
#endif
#ifdef CONFIG_ARCH_RAMFUNCS
/* Copy any necessary code sections from FLASH to RAM. The correct
* destination in SRAM is given by _sramfuncs and _eramfuncs. The
* temporary location is in flash after the data initialization code
* at _framfuncs
*/
for (src = &_framfuncs, dest = &_sramfuncs; dest < &_eramfuncs; )
{
*dest++ = *src++;
}
/* Flush the copied RAM functions into physical RAM so that will
* be available when fetched into the I-Cache.
*/
arch_clean_dcache((uintptr_t)&_sramfuncs, (uintptr_t)&_eramfuncs)
#endif
/* Setup up vector block. _vector_start and _vector_end are exported from
* arm_vector.S
*/
tms570_copyvectorblock();
/* Disable the watchdog timer */
tms570_wdtdisable();
/* Initialize clocking to settings provided by board-specific logic */
tms570_clockconfig();
#ifdef CONFIG_ARCH_FPU
/* Initialize the FPU */
arm_fpuconfig();
#endif
/* Perform board-specific initialization, This must include:
*
* - Initialization of board-specific memory resources (e.g., SDRAM)
* - Configuration of board specific resources (PIOs, LEDs, etc).
*
* NOTE: We must use caution prior to this point to make sure that
* the logic does not access any global variables that might lie
* in SDRAM.
*/
tms570_boardinitialize();
#ifdef CONFIG_BOOT_SDRAM_DATA
/* If .data and .bss reside in SDRAM, then initialize the data sections
* now after SDRAM has been initialized.
*/
arm_data_initialize();
#endif
/* Perform common, low-level chip initialization (might do nothing) */
tms570_lowsetup();
#ifdef USE_EARLYSERIALINIT
/* Perform early serial initialization if we are going to use the serial
* driver.
*/
tms570_earlyserialinit();
#endif
}