nuttx/boards/arm/imxrt/imxrt1060-evk/scripts/memory.ld
Masayuki Ishikawa e95b032c74 boards: imxrt1060-evk: Fix knsh and related linker script files
Summary:
- Fix knsh/defconfig to work with pyOCD
- Fix kernel-space.ld to boot
- Fix memory.ld for CONFIG_BUILD_PROTECTED=y

Impact:
- CONFIB_BUILD_PROTECTED=y only

Testing:
- Tested with imxrt1060-evk

Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
2023-02-09 23:30:50 -08:00

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/****************************************************************************
* boards/arm/imxrt/imxrt1060-evk/scripts/memory.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.
*
****************************************************************************/
/* The i.MXRT1060-EVK has 8MiB of Hyper FLASH beginning at address,
* 0x0060:0000, Up to 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 user and kernel space partitions will be spanned with a single
* region of size 2**n bytes. As a consequence, as the partitions increase
* in size, the alignment requirement also increases. The sizes below give
* the largest possible user address spaces (but leave far too much for the
* OS).
*
* The solution to this wasted memory is to (1) use more than one region to
* span the user spaces, or (2) poke holes in a larger region (via sub-
* regions) to trim it to fit better.
*
* A detailed memory map for the 512KB SRAM region is as follows:
*
* 0x2020 0000: Kernel .data region. Typical size: 0.1KB
* ------ ---- Kernel .bss region. Typical size: 1.8KB
* 0x2020 0800: Kernel IDLE thread stack (approximate). Size is
* determined by CONFIG_IDLETHREAD_STACKSIZE and
* adjustments for alignment. Typical is 1KB.
* ------ ---- Padded to 4KB
* 0x2040 0000: User .data region. Size is variable.
* ------- ---- User .bss region Size is variable.
* 0x2042 0000: Beginning of kernel heap. Size determined by
* CONFIG_MM_KERNEL_HEAPSIZE.
* ------ ---- Beginning of user heap. Can vary with other settings.
* 0x2080 0000: End+1 of mappable OCRAM
*/
/* Specify the memory areas */
MEMORY
{
/* 8MiB of HyperFLASH */
kflash (rx) : ORIGIN = 0x60000000, LENGTH = 1M
uflash (rx) : ORIGIN = 0x60200000, LENGTH = 1M
flash (rx) : ORIGIN = 0x60400000, LENGTH = 6M
/* 1MiB of OCRAM */
itcm (rwx) : ORIGIN = 0x00000000, LENGTH = 128K
dtcm (rwx) : ORIGIN = 0x20000000, LENGTH = 128K
kocram (rwx) : ORIGIN = 0x20200000, LENGTH = 256K
uocram (rwx) : ORIGIN = 0x20240000, LENGTH = 256K
}