301 lines
7.1 KiB
ArmAsm
301 lines
7.1 KiB
ArmAsm
/***************************************************************************
|
|
*
|
|
* Copyright 2015-2019 BES.
|
|
* All rights reserved. All unpublished rights reserved.
|
|
*
|
|
* No part of this work may be used or reproduced in any form or by any
|
|
* means, or stored in a database or retrieval system, without prior written
|
|
* permission of BES.
|
|
*
|
|
* Use of this work is governed by a license granted by BES.
|
|
* This work contains confidential and proprietary information of
|
|
* BES. which is protected by copyright, trade secret,
|
|
* trademark and other intellectual property rights.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#include "plat_addr_map.h"
|
|
|
|
#define HEAP_SECTION_SIZE 0x40
|
|
#define STACK_SECTION_SIZE 0x1000
|
|
|
|
#define CODE_MSG_OVERHEAD 8
|
|
|
|
/* TODO: Add FLASH_REGION_OFFSET if there are multiple levels of boot loaders */
|
|
#if !defined(OTA_BOOT_SIZE) && defined(OTA_CODE_OFFSET)
|
|
#define FLASH_REGION_BASE (FLASH_BASE + OTA_CODE_OFFSET)
|
|
#else
|
|
#define FLASH_REGION_BASE (FLASH_BASE)
|
|
#endif
|
|
|
|
#ifndef FLASH_REGION_SIZE
|
|
#define FLASH_REGION_SIZE (FLASH_SIZE - (FLASH_REGION_BASE - FLASH_BASE))
|
|
#endif
|
|
#define FLASH_NC_REGION_BASE FLASH_C_TO_NC(FLASH_REGION_BASE)
|
|
#define FLASHX_REGION_BASE FLASH_TO_FLASHX(FLASH_REGION_BASE)
|
|
/* Linker script to configure memory regions. */
|
|
MEMORY
|
|
{
|
|
ROM (rx) : ORIGIN = ROM_BASE, LENGTH = ROM_SIZE /* see plat_addr_map.h and common.mk */
|
|
FLASH (r) : ORIGIN = FLASH_REGION_BASE, LENGTH = FLASH_REGION_SIZE
|
|
FLASH_NC (r) : ORIGIN = FLASH_NC_REGION_BASE, LENGTH = FLASH_REGION_SIZE
|
|
FLASHX (rx) : ORIGIN = FLASHX_REGION_BASE, LENGTH = FLASH_REGION_SIZE
|
|
RAM (rwx) : ORIGIN = RAM_BASE, LENGTH = RAM_SIZE
|
|
RAMX (rx) : ORIGIN = RAMX_BASE, LENGTH = RAM_SIZE
|
|
}
|
|
|
|
/* Library configurations */
|
|
GROUP(libgcc.a)
|
|
|
|
/* Linker script to place sections and symbol values. Should be used together
|
|
* with other linker script that defines memory regions ROM and RAM.
|
|
* It references following symbols, which must be defined in code:
|
|
* Reset_Handler : Entry of reset handler
|
|
*
|
|
* It defines following symbols, which code can use without definition:
|
|
* __export_fn_rom
|
|
* __exec_struct_start
|
|
* __cust_cmd_init_tbl_start
|
|
* __cust_cmd_init_tbl_end
|
|
* __cust_cmd_hldr_tbl_start
|
|
* __cust_cmd_hldr_tbl_end
|
|
* __exidx_start
|
|
* __exidx_end
|
|
* __etext
|
|
* __data_start__
|
|
* __data_end__
|
|
* __bss_start__
|
|
* __bss_end__
|
|
* __end__
|
|
* end
|
|
* __HeapLimit
|
|
* __StackLimit
|
|
* __StackTop
|
|
* __stack
|
|
* __free_ram
|
|
*/
|
|
|
|
ENTRY(Boot_Loader)
|
|
|
|
SECTIONS
|
|
{
|
|
__export_fn_rom = (ORIGIN(ROM) + LENGTH(ROM) - ROM_BUILD_INFO_SECTION_SIZE - ROM_EXPORT_FN_SECTION_SIZE);
|
|
|
|
.boot_struct (ORIGIN(FLASH)) :
|
|
{
|
|
__flash_start = .;
|
|
KEEP(*(.boot_struct))
|
|
. = ALIGN(4);
|
|
} > FLASH
|
|
|
|
. = FLASH_TO_FLASHX(.);
|
|
|
|
.boot_text_flash (.) : AT (FLASHX_TO_FLASH(ADDR(.boot_text_flash)))
|
|
{
|
|
*(.boot_loader)
|
|
*(.boot_text_flash*)
|
|
*(.boot_rodata_flash*)
|
|
*:main.o(.text* .rodata*)
|
|
*:hal_bootmode.o(.text* .rodata*)
|
|
*:hal_cmu_*.o(.text.hal_cmu_get_bootmode_addr .rodata.hal_cmu_get_bootmode_addr)
|
|
*:cmsis_nvic.o(.text.NVIC_DisableAllIRQs .rodata.NVIC_DisableAllIRQs)
|
|
. = ALIGN(4);
|
|
} > FLASHX
|
|
|
|
.ota_boot_info (ALIGN(4096)) :
|
|
{
|
|
*(.ota_boot_info)
|
|
. = (0x1000);
|
|
} > FLASHX
|
|
|
|
.ota_boot_rev (ALIGN(4096)) :
|
|
{
|
|
*(.ota_boot_rev)
|
|
. = (0x1000);
|
|
} > FLASHX
|
|
|
|
. = FLASHX_TO_FLASH(.);
|
|
|
|
.got_info (.) :
|
|
{
|
|
__got_info_start = .;
|
|
__got_start = .;
|
|
*(.got)
|
|
. = ALIGN(4);
|
|
__got_end = .;
|
|
__got_plt_start = .;
|
|
*(.got.plt)
|
|
. = ALIGN(4);
|
|
__igot_plt_start = .;
|
|
*(.igot.plt)
|
|
. = ALIGN(4);
|
|
__dynamic_start = .;
|
|
*(.dynamic)
|
|
. = ALIGN(4);
|
|
__got_info_end = .;
|
|
} > FLASH
|
|
|
|
.vector_table (ORIGIN(RAM)) (NOLOAD) :
|
|
{
|
|
KEEP(*(.vector_table))
|
|
. = VECTOR_SECTION_SIZE;
|
|
. = ALIGN(4);
|
|
} > RAM
|
|
|
|
.reboot_param (.) (NOLOAD) :
|
|
{
|
|
KEEP(*(.reboot_param))
|
|
. = REBOOT_PARAM_SECTION_SIZE;
|
|
. = ALIGN(4);
|
|
} > RAM
|
|
|
|
.burn_buffer (.) (NOLOAD) :
|
|
{
|
|
/* The size of .burn_buffer should be greater than __rom_HeapLimit. In most cases 8K is enough. */
|
|
KEEP(*(.burn_buffer))
|
|
. = ALIGN(4);
|
|
} > RAM
|
|
|
|
/*
|
|
.code_dummy (.) (NOLOAD) :
|
|
{
|
|
. = CODE_MSG_OVERHEAD;
|
|
. = ALIGN(4);
|
|
} > RAM
|
|
*/
|
|
|
|
__boot_sram_start__ = .;
|
|
|
|
. = RAM_TO_RAMX(.);
|
|
|
|
__boot_sram_start_flash__ = LOADADDR(.got_info) + SIZEOF(.got_info);
|
|
|
|
.text (.) : AT (__boot_sram_start_flash__)
|
|
{
|
|
*(.text*)
|
|
. = ALIGN(4);
|
|
} > RAMX
|
|
|
|
.ARM.extab (.) : AT (LOADADDR(.text) + SIZEOF(.text))
|
|
{
|
|
*(.ARM.extab* .gnu.linkonce.armextab.*)
|
|
} > RAMX
|
|
|
|
__exidx_start = .;
|
|
/* .ARM.exidx contains R_ARM_PREL31 (+-0x40000000) offset to functions, which means
|
|
* the session location cannot be too far away from the function addresses */
|
|
.ARM.exidx (.) : AT (LOADADDR(.ARM.extab) + SIZEOF(.ARM.extab))
|
|
{
|
|
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
|
|
} > RAMX
|
|
__exidx_end = .;
|
|
|
|
. = RAMX_TO_RAM(.);
|
|
|
|
.rodata (.) : AT (LOADADDR(.ARM.exidx) + SIZEOF(.ARM.exidx))
|
|
{
|
|
*(.rodata*)
|
|
*(.boot_rodata_sram*)
|
|
|
|
. = ALIGN(4);
|
|
__cust_cmd_init_tbl_start = .;
|
|
KEEP(*(.cust_cmd_init_tbl))
|
|
__cust_cmd_init_tbl_end = .;
|
|
|
|
. = ALIGN(4);
|
|
__cust_cmd_hldr_tbl_start = .;
|
|
KEEP(*(.cust_cmd_hldr_tbl))
|
|
__cust_cmd_hldr_tbl_end = .;
|
|
|
|
*(.note.gnu.build-id)
|
|
. = ALIGN(4);
|
|
} > RAM
|
|
|
|
__etext = .;
|
|
|
|
.data (.) : AT (LOADADDR(.rodata) + SIZEOF(.rodata))
|
|
{
|
|
__data_start__ = .;
|
|
*(.data*)
|
|
|
|
. = ALIGN(4);
|
|
/* All data end */
|
|
__data_end__ = .;
|
|
|
|
} > RAM
|
|
|
|
__boot_sram_end__ = .;
|
|
|
|
__boot_sram_end_flash__ = LOADADDR(.data) + SIZEOF(.data);
|
|
|
|
.build_info (LOADADDR(.data) + SIZEOF(.data)) : AT (LOADADDR(.data) + SIZEOF(.data))
|
|
{
|
|
KEEP(*(.build_info))
|
|
. = ALIGN(4);
|
|
} > FLASH = 0x00000000
|
|
|
|
/* The following section be the last loaded section */
|
|
.code_start_addr (.) :
|
|
{
|
|
__app_entry_address__ = .;
|
|
LONG(APP_ENTRY_ADDRESS);
|
|
__download_uart_bandrate__ = .;
|
|
LONG(DOWNLOAD_UART_BANDRATE);
|
|
LONG(BUILD_INFO_MAGIC);
|
|
LONG(ABSOLUTE(__flash_start));
|
|
} > FLASH
|
|
|
|
__flash_end = .;
|
|
|
|
.bss (ADDR(.data)+SIZEOF(.data)) (NOLOAD) :
|
|
{
|
|
. = ALIGN(4);
|
|
__bss_start__ = .;
|
|
*(.bss*)
|
|
*(COMMON)
|
|
. = ALIGN(4);
|
|
__bss_end__ = .;
|
|
} > RAM
|
|
|
|
.heap (.) (NOLOAD) :
|
|
{
|
|
. = ALIGN(8);
|
|
__HeapBase = .;
|
|
__end__ = .;
|
|
end = __end__;
|
|
. += HEAP_SECTION_SIZE;
|
|
. = ALIGN(8);
|
|
__HeapLimit = .;
|
|
} > RAM
|
|
|
|
/* .stack_dummy section doesn't contains any symbols. It is only
|
|
* used for linker to calculate size of stack sections, and assign
|
|
* values to stack symbols later */
|
|
.stack_dummy (.) (COPY) :
|
|
{
|
|
. = STACK_SECTION_SIZE;
|
|
. = ALIGN(8);
|
|
} > RAM
|
|
|
|
/* Set stack top to end of RAM, and stack limit move down by
|
|
* size of stack_dummy section */
|
|
__StackTop = ORIGIN(RAM) + LENGTH(RAM);
|
|
__StackLimit = __StackTop - SIZEOF(.stack_dummy);
|
|
PROVIDE(__stack = __StackTop);
|
|
|
|
/* Check if data + heap + stack exceeds RAM limit */
|
|
ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
|
|
__free_ram = __StackLimit - __HeapLimit;
|
|
|
|
__boot_bss_sram_start__ = .;
|
|
__boot_bss_sram_end__ = .;
|
|
__sram_text_data_start_flash__ = .;
|
|
__sram_text_data_end_flash__ = .;
|
|
__sram_text_data_start__ = .;
|
|
__sram_bss_start__ = .;
|
|
__sram_bss_end__ = .;
|
|
__fast_sram_text_data_start_flash__ = .;
|
|
__fast_sram_text_data_end_flash__ = .;
|
|
__fast_sram_text_data_start__ = .;
|
|
}
|