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/****************************************************************************
* configs/open1788/scripts/memory.ld
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/* The LPC1788 has 512Kb of FLASH beginning at address 0x0000:0000 and
* 96KB of total SRAM: 64KB of SRAM in the CPU block beginning at address
* 0x10000000 and 32Kb of Peripheral SRAM in two banks, 8KB at addresses
* 0x20000000 bank0 first and 8KB at 0x20002000 at bank0 second. And 16KB
* at 0x20004000 on bank1.
*
* For MPU support, the kernel-mode NuttX section is assumed to be 64KB of
* FLASH and 4KB of SRAM. That, of course, can be optimized as needed (See
* also configs/open1788/scripts/kernel-space.ld).
*
* Alignment of the user space FLASH partition is a critical factor: The
* user space FLASH partition will be spanned with a single region of size
* 2**n bytes. The alignment of the user-space region must be the same. As
* a consequence, as the user-space increases in size, the alignmment
* requirement also increases.
*
* This alignment requirement means that the largest user space FLASH region
* you can have will be 256KB at it would have to be positioned at
* 0x00400000. If you change this address, don't forget to chagne the
* CONFIG_NUTTX_USERSPACE configuration setting to match and to modify
* the check in kernel/userspace.c.
*
* A detailed memory map for the 64KB CPU SRAM region is as follows:
*
* 0x10000 0000: Kernel .data region. Typical size: 0.1KB
* ------- ---- Kernel .bss region. Typical size: 1.8KB
* 0x10000 0800: Kernel IDLE thread stack (approximate). Size is
* determined by CONFIG_IDLETHREAD_STACKSIZE and
* adjustments for alignment. Typical is 1KB.
* ------- ---- Padded to 4KB
* 0x10000 1000: User .data region. Size is variable.
* ------- ---- User .bss region Size is variable.
* ------- ---- Beginning of kernel heap. Size determined by
* CONFIG_MM_KERNEL_HEAPSIZE.
* 0x10000 8000: Beginning of user heap. Can vary with other settings.
* 0x10001 0000: End+1 of CPU RAM
*/
MEMORY
{
/* 256Kb FLASH */
kflash (rx) : ORIGIN = 0x00000000, LENGTH = 64K
uflash (rx) : ORIGIN = 0x00010000, LENGTH = 448K
/* 64Kb of SRAM in the CPU block */
ksram (rwx) : ORIGIN = 0x10000000, LENGTH = 4K
usram (rwx) : ORIGIN = 0x10001000, LENGTH = 60K
/* Other peripheral memory (free, nothing is linked here) */
ahbram8_b0a(rwx) : ORIGIN = 0x20000000, LENGTH = 8K
ahbram8_b0b(rwx) : ORIGIN = 0x20002000, LENGTH = 8K
ahbram16(rwx) : ORIGIN = 0x20004000, LENGTH = 16K
}
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