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/*
* Copyright (c) 2016, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <stdint.h>
#include "fsl_common.h"
#include "clock_config.h"
#include "board.h"
#include "fsl_debug_console.h"
#ifdef SDK_PRIMARY_CORE
/* Address of RAM, where the image for core1 should be copied */
#define CORE1_BOOT_ADDRESS (void *)0x20010000
#if defined(__CC_ARM) || defined(__ARMCC_VERSION)
extern uint32_t Image$$CORE1_REGION$$Base;
extern uint32_t Image$$CORE1_REGION$$Length;
#define CORE1_IMAGE_START &Image$$CORE1_REGION$$Base
#elif defined(__ICCARM__)
extern unsigned char core1_image_start[];
#define CORE1_IMAGE_START core1_image_start
#endif
#endif
/*******************************************************************************
* Variables
******************************************************************************/
/* Clock rate on the CLKIN pin */
const uint32_t ExtClockIn = BOARD_EXTCLKINRATE;
/*******************************************************************************
* Code
******************************************************************************/
/* Initialize debug console. */
status_t BOARD_InitDebugConsole(void)
{
#if ((SDK_DEBUGCONSOLE == DEBUGCONSOLE_REDIRECT_TO_SDK) || defined(SDK_DEBUGCONSOLE_UART))
status_t result;
/* attach 12 MHz clock to FLEXCOMM0 (debug console) */
CLOCK_AttachClk(kFRO12M_to_FLEXCOMM0);
RESET_PeripheralReset(BOARD_DEBUG_UART_RST);
result = DbgConsole_Init(BOARD_DEBUG_UART_BASEADDR, BOARD_DEBUG_UART_BAUDRATE, DEBUG_CONSOLE_DEVICE_TYPE_FLEXCOMM,
BOARD_DEBUG_UART_CLK_FREQ);
assert(kStatus_Success == result);
return result;
#else
return kStatus_Success;
#endif
}
#ifdef SDK_PRIMARY_CORE
/* Start the secondary core. */
void BOARD_StartSecondaryCore(void)
{
/* Calculate size of the secondary core image - not required on MCUXpresso. MCUXpresso copies the image to RAM during
* startup
* automatically */
#if (defined(__CC_ARM) || defined(__ARMCC_VERSION) || defined(__ICCARM__))
#if defined(__CC_ARM) || defined(__ARMCC_VERSION)
uint32_t core1_image_size = (uint32_t)&Image$$CORE1_REGION$$Length;
#elif defined(__ICCARM__)
#pragma section = "__sec_core"
uint32_t core1_image_size = (uint32_t)__section_end("__sec_core") - (uint32_t)&core1_image_start;
#endif
/* Copy core1 application from FLASH to RAM. Primary core code is executed from FLASH, Secondary from RAM
* for maximal effectivity.*/
memcpy(CORE1_BOOT_ADDRESS, (void *)CORE1_IMAGE_START, core1_image_size);
#endif
/* Boot source for Core 1 from RAM */
SYSCON->CPBOOT = SYSCON_CPBOOT_BOOTADDR(*(uint32_t *)((uint8_t *)CORE1_BOOT_ADDRESS + 0x4));
SYSCON->CPSTACK = SYSCON_CPSTACK_STACKADDR(*(uint32_t *)CORE1_BOOT_ADDRESS);
uint32_t temp = SYSCON->CPUCTRL;
temp |= 0xc0c48000U;
SYSCON->CPUCTRL = temp | SYSCON_CPUCTRL_CM0RSTEN_MASK | SYSCON_CPUCTRL_CM0CLKEN_MASK;
SYSCON->CPUCTRL = (temp | SYSCON_CPUCTRL_CM0CLKEN_MASK) & (~SYSCON_CPUCTRL_CM0RSTEN_MASK);
}
#endif
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