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xmc4xxx: Integrate build of erase check code

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Instead of pointing to the assembler sources in a comment and
inline-commenting the THUMB bytecode, place the hex array alongside the
assembler sources and include it via preprocessor.

Originally inspired by a typo in the file path during driver development,
but it also facilitates making changes to the assembler sources.

A Makefile is provided to help automate updating the bytecode. It is not
integrated with the automake system to avoid forcing an ARM cross-compiler
onto every user, i.e. after modifying the sources they need to be rebuilt
in that directory before building the usual way. ARM_CROSS_COMPILE= can
be passed on the make command line to deal with native ARM toolchains
or with varying prefixes of cross-toolchains.

Change-Id: I00ceb980a68c8554a180dd13719ac77b677a8bcd
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3133
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This commit is contained in:
Andreas Färber
2015-11-29 03:09:46 +01:00
committed by Andreas Fritiofson
parent 43ff5acd45
commit 7cf68a0f16
3 changed files with 22 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/flash/nor/xmc4xxx.c
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@@ -628,16 +628,8 @@ int xmc4xxx_blank_check_memory(struct target *target,
struct armv7m_algorithm armv7m_info;
int retval;
/* see contrib/loaders/erase_check/armv7m_0_erase_check.s for src */
static const uint8_t erase_check_code[] = {
/* loop: */
0x03, 0x78, /* ldrb r3, [r0] */
0x01, 0x30, /* adds r0, #1 */
0x1A, 0x43, /* orrs r2, r2, r3 */
0x01, 0x39, /* subs r1, r1, #1 */
0xFA, 0xD1, /* bne loop */
0x00, 0xBE /* bkpt #0 */
#include "../../../contrib/loaders/erase_check/armv7m_0_erase_check.inc"
};
/* make sure we have a working area */