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SAMA5 Boards: When running from SDRAM, a 32KB offset is needed by the bootloader

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This commit is contained in:
Gregory Nutt 2014-03-30 10:24:31 -06:00
parent 8068bc46b1
commit 33f57c6df2
2 changed files with 10 additions and 8 deletions
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9
configs/sama5d3-xplained/scripts/ddram.ld
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@ -33,9 +33,10 @@
*
****************************************************************************/
/* The SAMA5D36 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
* This memory configuration, however, loads into the 256 MB SDRAM on board
* the SAMA5D3-Xplained which lies at 0x2000:0000
/* The SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
* This memory configuration, however, loads into the 256MB SDRAM on board
* the SAMA5D3 Xplained which lies at 0x2000:0000. An offset 0x00008000 is
* reserved by the bootloader.
*
* Vectors in low memory are assumed and 16KB of ISRAM is reserved at the
* high end of ISRAM for the page table.
@ -44,7 +45,7 @@
MEMORY
{
isram (W!RX) : ORIGIN = 0x300000, LENGTH = 128K - 16K
sdram (W!RX) : ORIGIN = 0x20000000, LENGTH = 256M
sdram (W!RX) : ORIGIN = 0x20008000, LENGTH = 256M - 32K
}
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")

9
configs/sama5d3x-ek/scripts/ddram.ld
View File

@ -1,7 +1,7 @@
/****************************************************************************
* configs/sama5d3x-ek/scripts/ddram.ld
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Copyright (C) 2013-2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
@ -34,8 +34,9 @@
****************************************************************************/
/* The SAMA5D3 has 128 KB of ISRAM beginning at virtual address 0x0030:0000.
* This memory configuration, however, loads into the 64 MB SDRAM on board
* the SAMA5D3x-EK which lies at 0x2000:0000
* This memory configuration, however, loads into the 2Gb SDRAM on board
* the SAMA5D3x-EK which lies at 0x2000:0000. An offset 0x00008000 is
* reserved by the bootloader.
*
* Vectors in low memory are assumed and 16KB of ISRAM is reserved at the
* high end of ISRAM for the page table.
@ -44,7 +45,7 @@
MEMORY
{
isram (W!RX) : ORIGIN = 0x300000, LENGTH = 128K - 16K
sdram (W!RX) : ORIGIN = 0x20000000, LENGTH = 64M
sdram (W!RX) : ORIGIN = 0x20008000, LENGTH = 2G - 32K
}
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")