merged trunk changes into branch

[proxmark3-svn] / common / ldscript.common

diff --git a/common/ldscript.common b/common/ldscript.common
index 4c4bd3906127eebe0f6f7315e0c4aff20fd41e0d..7cde5891d5ef4e17c6649c55777a4f3129cff61f 100644 (file)
--- a/common/ldscript.common
+++ b/common/ldscript.common
@@ -1,16 +1,29 @@
+/*
+-----------------------------------------------------------------------------
+ This code is licensed to you under the terms of the GNU GPL, version 2 or,
+ at your option, any later version. See the LICENSE.txt file for the text of
+ the license.
+-----------------------------------------------------------------------------
+ Common linker script
+-----------------------------------------------------------------------------
+*/
+
 /* AT91SAM7S256 has 256k Flash and 64k RAM */
 MEMORY 
 {
-       /* Important note: this memory map has the correct origins for all the flash sections.
-          However, this will confuse the currently deployed flash code which expects logical and and not
-          physical addresses and performs no sanity checks at all. If confronted with physical addresses, 
-          it will happily erase everything and brick the device. So for the time being translate these addresses
-          down in the objcopy call while updating all the flash code with proper sanity checks, then come
-          back later and fix the addresses. -- Henryk Plötz <henryk@ploetzli.ch> 2009-08-27 */
-        bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200 /* Phase 1 bootloader: Copies real bootloader to RAM */
-        bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200 /* Main bootloader code, stored in Flash, executed from RAM */
-        fpgaimage  : ORIGIN = 0x00102000, LENGTH = 64k - 0x2000 /* Place where the FPGA image will end up */
-        osimage    : ORIGIN = 0x00110000, LENGTH = 256K - 64k /* Place where the main OS will end up */
-        ram        : ORIGIN = 0x00200000, LENGTH = 64K
+       bootphase1 : ORIGIN = 0x00100000, LENGTH = 0x200             /* Phase 1 bootloader: Copies real bootloader to RAM */
+       bootphase2 : ORIGIN = 0x00100200, LENGTH = 0x2000 - 0x200    /* Main bootloader code, stored in Flash, executed from RAM */
+       fpgaimage  : ORIGIN = 0x00102000, LENGTH = 64k - 0x2000      /* Place where the FPGA image will end up */
+       osimage    : ORIGIN = 0x00110000, LENGTH = 256K - 64k        /* Place where the main OS will end up */
+       ram        : ORIGIN = 0x00200000, LENGTH = 64K - 0x20        /* RAM, minus small common area */
+       commonarea : ORIGIN = 0x00200000 + 64K - 0x20, LENGTH = 0x20 /* Communication between bootloader and main OS */
 }
 
+/* Export some information that can be used from within the firmware */
+_bootphase1_version_pointer = ORIGIN(bootphase1) + LENGTH(bootphase1) - 0x4;
+_osimage_entry = ORIGIN(osimage);
+_bootrom_start = ORIGIN(bootphase1);
+_bootrom_end = ORIGIN(bootphase2) + LENGTH(bootphase2);
+_flash_start = ORIGIN(bootphase1);
+_flash_end = ORIGIN(osimage) + LENGTH(osimage);
+_stack_end = ORIGIN(ram) + LENGTH(ram) - 8;