124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
/****************************************************************************
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* arch/arm/src/tlsr82/tlsr82_start.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/arch.h>
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#include <nuttx/init.h>
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#include <syslog.h>
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#include "arm_internal.h"
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#include "hardware/tlsr82_gpio.h"
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#include "tlsr82_gpio.h"
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#include "tlsr82_gpio_cfg.h"
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#include "tlsr82_serial.h"
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#include "tlsr82_spi_console.h"
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#include "tlsr82_clock.h"
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#include "tlsr82_cpu.h"
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#include "tlsr82_flash.h"
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef CONFIG_SCHED_BACKTRACE
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extern void up_backtrace_init_code_regions(void **regions);
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* g_idle_topstack: _sbss is the start of the BSS region as defined by the
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* linker script. _ebss lies at the end of the BSS region. The idle task
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* stack starts at the end of BSS and is of size CONFIG_IDLETHREAD_STACKSIZE.
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* The IDLE thread is the thread that the system boots on and, eventually,
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* becomes the IDLE, do nothing task that runs only when there is nothing
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* else to run. The heap continues from there until the end of memory.
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* g_idle_topstack is a read-only variable the provides this computed
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* address.
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*/
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const uintptr_t g_idle_topstack = (uintptr_t)_ebss +
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CONFIG_IDLETHREAD_STACKSIZE;
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#ifdef CONFIG_SCHED_BACKTRACE
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extern uint8_t _sramcode[];
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extern uint8_t _eramcode[];
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#ifdef CONFIG_SCHED_BACKTRACE
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static void *g_code_regions[] =
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{
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_stext , _etext,
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_sramcode, _eramcode,
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NULL , NULL,
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};
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#endif
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ____tc32_start
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*
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* Description:
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* This is the reset entry point.
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*
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****************************************************************************/
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void __tc32_start(void)
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{
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tlsr82_cpu_wakeup_init(LDO_MODE, EXTERNAL_XTAL_24M);
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tlsr82_gpio_init();
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tlsr82_clock_init();
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#ifdef CONFIG_SCHED_BACKTRACE
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up_backtrace_init_code_regions(g_code_regions);
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#endif
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#ifdef CONFIG_TLSR82_SPI
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spi_console_early_init();
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#endif
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tlsr82_earlyserialinit();
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nx_start();
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/* Never reach here */
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for (; ; );
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}
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