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140 lines
4.9 KiB
140 lines
4.9 KiB
/**************************************************************************** |
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* configs/lpc4330-xplorer/scripts/spificonfig.ld |
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* |
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* Copyright (C) 2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/* |
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* Power-Up Reset Overview |
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* ----------------------- |
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* |
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* The ARM core starts executing code on reset with the program counter set |
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* to 0x0000 0000. The LPC43xx contains a shadow pointer register that |
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* allows areas of memory to be mapped to address 0x0000 0000. The default, |
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* reset value of the shadow pointer is 0x1040 0000 so that on reset code in |
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* the boot ROM is always executed first. |
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* |
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* The boot starts after reset is released. The IRC is selected as CPU clock |
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* and the Cortex-M4 starts the boot loader. By default the JTAG access to the |
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* chip is disabled at reset. The boot ROM determines the boot mode based on |
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* the OTP BOOT_SRC value or reset state pins. For flash-based parts, the part |
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* boots from internal flash by default. Otherwse, the boot ROM copies the |
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* image to internal SRAM at location 0x1000 0000, sets the ARM's shadow |
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* pointer to 0x1000 0000, and jumps to that location. |
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* |
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* Of course, using JTAG the executable image can be also loaded directly |
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* into and executed from SRAM. |
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*/ |
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/* The LPC4330 on the LPC4330-Xplorer has the following memory resources: |
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* |
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* 1. 4096Kb of SPIFI FLASH beginning at address 0x1400:0000 |
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* 2. 264KB of total SRAM: |
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* a. 128KB of SRAM in the CPU block beginning at address 0x1000:0000 |
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* b. 72KB beginning at address 0x1008:0000 and |
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* c. 64KB of AHB SRAM in three banks beginning at addresses 0x2000:0000, |
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* 0x2000:8000 and 0x2000:C000. |
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* 3. No internal FLASH |
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* |
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* Here we assume that: |
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* |
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* 1. We will be running out of SPIFI flash at 0x1400:0000, and |
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* 2. All .data and .bss will all fit into the 128KB CPU SRAM block. |
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*/ |
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MEMORY |
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{ |
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progmem (rx) : ORIGIN = 0x14000000, LENGTH = 1024K |
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datamem (rwx) : ORIGIN = 0x10000000, LENGTH = 128K |
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} |
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OUTPUT_ARCH(arm) |
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ENTRY(__start) /* Treat __start as the anchor for dead code stripping */ |
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EXTERN(_vectors) /* Force the vectors to be included in the output */ |
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SECTIONS |
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{ |
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.text : { |
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_stext = ABSOLUTE(.); |
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*(.vectors) |
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*(.text .text.*) |
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*(.fixup) |
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*(.gnu.warning) |
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*(.rodata .rodata.*) |
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*(.gnu.linkonce.t.*) |
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*(.glue_7) |
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*(.glue_7t) |
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*(.got) |
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*(.gcc_except_table) |
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*(.gnu.linkonce.r.*) |
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_etext = ABSOLUTE(.); |
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} > progmem |
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_eronly = ABSOLUTE(.); /* See below */ |
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.data : { |
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_sdata = ABSOLUTE(.); |
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*(.data .data.*) |
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*(.gnu.linkonce.d.*) |
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CONSTRUCTORS |
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_edata = ABSOLUTE(.); |
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} > datamem AT > progmem |
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.ARM.extab : { |
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*(.ARM.extab*) |
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} >datamem |
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.ARM.exidx : { |
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__exidx_start = ABSOLUTE(.); |
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*(.ARM.exidx*) |
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__exidx_end = ABSOLUTE(.); |
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} >datamem |
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.bss : { /* BSS */ |
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_sbss = ABSOLUTE(.); |
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*(.bss .bss.*) |
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*(.gnu.linkonce.b.*) |
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*(COMMON) |
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_ebss = ABSOLUTE(.); |
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} > datamem |
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/* Stabs debugging sections. */ |
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.stab 0 : { *(.stab) } |
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.stabstr 0 : { *(.stabstr) } |
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.stab.excl 0 : { *(.stab.excl) } |
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.stab.exclstr 0 : { *(.stab.exclstr) } |
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.stab.index 0 : { *(.stab.index) } |
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.stab.indexstr 0 : { *(.stab.indexstr) } |
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.comment 0 : { *(.comment) } |
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.debug_abbrev 0 : { *(.debug_abbrev) } |
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.debug_info 0 : { *(.debug_info) } |
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.debug_line 0 : { *(.debug_line) } |
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.debug_pubnames 0 : { *(.debug_pubnames) } |
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.debug_aranges 0 : { *(.debug_aranges) } |
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}
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