/**************************************************************************** * boards/arm/imxrt/teensy-4.x/scripts/flash-ocram.ld * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /* Specify the memory areas */ /* The imxrt162-evk has 8MiB of QSPI FLASH beginning at address, * 0x0060:0000, Upto 512Kb of DTCM RAM beginning at 0x2000:0000, and 1MiB OCRAM * beginning at 0x2020:0000. Neither DTCM or SDRAM are used in this * configuration. * * The default flexram setting on the iMXRT 1062 is * 256Kib to OCRRAM, 128Kib ITCM and 128Kib DTCM. * This can be changed by using a dcd by minipulating * IOMUX GPR16 and GPR17. * The configuration we will use is 384Kib to OCRRAM, 0Kib ITCM and * 128Kib DTCM. * * This is the OCRAM inker script. * The NXP ROM bootloader will move the FLASH image to OCRAM. * We must reserve 32K for the bootloader' OCRAM usage from the OCRAM Size * and an additinal 8K for the ivt_s which is IVT_SIZE(8K) This 40K can be * reused once the application is running. * * 0x2020:A000 to 0x202d:ffff - The application Image's vector table * 0x2020:8000 to 0x2020:A000 - IVT * 0x2020:0000 to 0x2020:7fff - NXP ROM bootloader. * * We artificially split the FLASH to allow locating sections that we do not * want loaded inoto OCRAM. This is to save on OCRAM where the speen of the * code does not matter. * */ MEMORY { flash (rx) : ORIGIN = 0x60000000, LENGTH = 7M flashxip (rx) : ORIGIN = 0x60700000, LENGTH = 1M /* Vectors @ boot+ivt OCRAM2 Flex RAM Boot IVT */ sram (rwx) : ORIGIN = 0x2020A000, LENGTH = 512K + 256K + 128K - (32K + 8K) itcm (rwx) : ORIGIN = 0x00000000, LENGTH = 0K dtcm (rwx) : ORIGIN = 0x20000000, LENGTH = 128K } OUTPUT_ARCH(arm) EXTERN(_vectors) EXTERN(g_flash_config) EXTERN(g_image_vector_table) EXTERN(g_boot_data) EXTERN(g_dcd_data) ENTRY(_stext) SECTIONS { /* Image Vector Table and Boot Data for booting from external flash */ .boot_hdr : ALIGN(4) { FILL(0xff) __boot_hdr_start__ = ABSOLUTE(.) ; KEEP(*(.boot_hdr.conf)) . = 0x1000 ; KEEP(*(.boot_hdr.ivt)) . = 0x1020 ; KEEP(*(.boot_hdr.boot_data)) . = 0x1030 ; KEEP(*(.boot_hdr.dcd_data)) __boot_hdr_end__ = ABSOLUTE(.) ; . = 0x2000 ; } > flash /* Catch all the section we want not in OCRAM so that the *(.text .text.*) in flash does not */ .flashxip : ALIGN(4) { FILL(0xff) /* Order matters */ imxrt_start.o(.text) imxrt_boot.o(.text) *(.slow_memory) *(.rodata .rodata.*) KEEP(*(__param*)) *(.fixup) *(.gnu.warning) *(.gnu.linkonce.t.*) *(.glue_7) *(.glue_7t) *(.got) *(.gcc_except_table) *(.gnu.linkonce.r.*) } > flashxip .text : { _stext = ABSOLUTE(.); *(.vectors) *(.text .text.*) _etext = ABSOLUTE(.); } > sram AT > flash .init_section : { _sinit = ABSOLUTE(.); KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) KEEP(*(.init_array EXCLUDE_FILE(*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o) .ctors)) _einit = ABSOLUTE(.); } > flash .ARM.extab : { *(.ARM.extab*) } > flash .ARM.exidx : { __exidx_start = ABSOLUTE(.); *(.ARM.exidx*) __exidx_end = ABSOLUTE(.); } > flash _eronly = ABSOLUTE(.); .data : { _sdata = ABSOLUTE(.); *(.data .data.*) *(.gnu.linkonce.d.*) CONSTRUCTORS . = ALIGN(4); _edata = ABSOLUTE(.); } > sram AT > flash .ramfunc ALIGN(4): { _sramfuncs = ABSOLUTE(.); *(.ramfunc .ramfunc.*) _eramfuncs = ABSOLUTE(.); } > sram AT > flash _framfuncs = LOADADDR(.ramfunc); .bss : { _sbss = ABSOLUTE(.); *(.bss .bss.*) *(.gnu.linkonce.b.*) *(COMMON) . = ALIGN(4); _ebss = ABSOLUTE(.); } > sram /* Stabs debugging sections. */ .stab 0 : { *(.stab) } .stabstr 0 : { *(.stabstr) } .stab.excl 0 : { *(.stab.excl) } .stab.exclstr 0 : { *(.stab.exclstr) } .stab.index 0 : { *(.stab.index) } .stab.indexstr 0 : { *(.stab.indexstr) } .comment 0 : { *(.comment) } .debug_abbrev 0 : { *(.debug_abbrev) } .debug_info 0 : { *(.debug_info) } .debug_line 0 : { *(.debug_line) } .debug_pubnames 0 : { *(.debug_pubnames) } .debug_aranges 0 : { *(.debug_aranges) } }