/**************************************************************************//** * * @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 #include #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 }