rt-thread-official/bsp/nuvoton/libraries/nuc980/rtt_port/drv_common.c

74 lines
1.9 KiB
C

/**************************************************************************//**
*
* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-11-11 Wayne First version
*
******************************************************************************/
#include <rtthread.h>
#include <rthw.h>
#include "board.h"
#include "drv_uart.h"
#include "drv_sys.h"
#if defined(BSP_USING_MMU)
static struct mem_desc hw_mem_desc[] =
{
{ 0x00000000, 0xFFFFFFFF, 0x00000000, RW_NCNB }, /* None cached for 4G memory */
{ 0x00000000, BOARD_SDRAM_SIZE - 1, 0x00000000, RW_CB }, /* 64M cached DDR memory */
{ BIT31, (BIT31 | BOARD_SDRAM_SIZE) - 1, BIT31, RW_NCNB }, /* Shadow DDR Map */
{ 0x3C000000, 0x3C004000 - 1, 0x3C000000, RW_NCNB }, /* 16K SRAM memory */
{ 0xBC000000, 0xBC004000 - 1, 0xBC000000, RW_NCNB } /* 16K Shadow memory */
};
#endif
/**
* This function will initial M487 board.
*/
RT_WEAK void rt_hw_board_init(void)
{
/* initialize base clock */
nu_clock_base_init();
/* initialize peripheral pin function */
nu_pin_init();
#if defined(BSP_USING_MMU)
/* initialize mmu */
rt_hw_mmu_init(&hw_mem_desc[0], sizeof(hw_mem_desc) / sizeof(hw_mem_desc[0]));
#else
/* disable I/D cache */
mmu_disable_dcache();
mmu_disable_icache();
mmu_disable();
mmu_invalidate_tlb();
#endif
/* initialize hardware interrupt */
rt_hw_interrupt_init();
/* initialize systick */
rt_hw_systick_init();
#ifdef RT_USING_HEAP
/* init memory system */
rt_system_heap_init((void *)BOARD_HEAP_START, (void *)BOARD_HEAP_END);
#endif
/* initialize uart */
rt_hw_uart_init();
#ifdef RT_USING_CONSOLE
rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
#endif
#ifdef RT_USING_COMPONENTS_INIT
rt_components_board_init();
#endif
}