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| author | Jeff Ciesielski <jeffciesielski@gmail.com> | 2015-01-21 18:57:59 -0800 |
|---|---|---|
| committer | Freddie Chopin <freddie.chopin@gmail.com> | 2015-11-11 12:08:35 +0000 |
| commit | 33b048d456e24b9944ff2261cf26b05d630bdd41 (patch) | |
| tree | 595d052232f9a7dc32d8fa0473b06961684931cc /contrib | |
| parent | 42c24acebd23d758c543c9bf2c2b97bdbd083c35 (diff) | |
| download | riscv-openocd-33b048d456e24b9944ff2261cf26b05d630bdd41.zip riscv-openocd-33b048d456e24b9944ff2261cf26b05d630bdd41.tar.gz riscv-openocd-33b048d456e24b9944ff2261cf26b05d630bdd41.tar.bz2 | |
flash: New driver for XMC4xxx microcontroller family
This is a complete flash driver for the Infineon XMC4xxx family of
microcontrollers, based on the TMS570 driver by Andrey Yurovsky.
The driver attempts to discover the particular variant of MCU via a
combination of the SCU register (to determine if this is indeed an
XMC4xxx part) and the FLASH0_ID register (to determine the variant).
If this fails, the driver will not load.
The driver has been added to the README and documentation.
Tests:
* Hardware: XMC4500 (XMC4500_relax), XMC4200 (XMC4200 enterprise)
* SWD + JTAG
* Binary: 144k, 1M
Note:
* Flash protect only partly tested. These parts only allow the flash
protection registers (UCB) to be written 4 times total, and my devkits
have run out of uses (more on the way)
Future Work:
* User 1/2(permalock) locking support via custom command
* In-memory flash loader bootstrap (flashing is rather slow...)
Change-Id: I1d3345d5255d8de8dc4175cf987eb4a037a8cf7f
Signed-off-by: Jeff Ciesielski <jeffciesielski@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2488
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/loaders/erase_check/armv7m_0_erase_check.s | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/contrib/loaders/erase_check/armv7m_0_erase_check.s b/contrib/loaders/erase_check/armv7m_0_erase_check.s new file mode 100644 index 0000000..6b1e92a --- /dev/null +++ b/contrib/loaders/erase_check/armv7m_0_erase_check.s @@ -0,0 +1,45 @@ +/*************************************************************************** + * Copyright (C) 2014 by Jeff Ciesielski * + * jeffciesielski@gmail.com * + * * + * Based on the armv7m erase checker by: * + * Copyright (C) 2010 by Spencer Oliver * + * spen@spen-soft.co.uk * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + ***************************************************************************/ + +/* + parameters: + r0 - address in + r1 - byte count + r2 - mask - result out +*/ + + .text + .syntax unified + .cpu cortex-m0 + .thumb + .thumb_func + + .align 2 + +loop: + ldrb r3, [r0] + adds r0, #1 + orrs r2, r2, r3 + subs r1, r1, #1 + bne loop +end: + bkpt #0 + + .end |