Based on RM0433.rev5 > Section 3.3.9 : Flash program operations:
QW1/2: this bit indicates that a write, erase or option byte change
operation is pending in the write queue or command queue buffer.
It remains high until the write operation is complete.
It supersedes the BSY1/2 status bit.
On this basis, stm32x_wait_status_busy is renamed accordingly to be
'stm32x_wait_flash_op_queue'
Note : In this commit there is a fix of SR_ERROR_MASK value in flash loader algo
Note : This modification is mandatory for revision X, and backward compatible
with old revisions
Change-Id: I59d2973317d76b01fbb0fb5e4a472a47d0a7a5b5
Signed-off-by: Laurent LEMELE <laurent.lemele@st.com>
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/4883
Tested-by: jenkins
Reviewed-by: Christopher Head <chead@zaber.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Valgrind and Clang Static Analyzer have no complaints about this change.
Change-Id: I7757615ec52448372bdc57729cdf97c7016d97e8
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/4656
Tested-by: jenkins
Reviewed-by: Philipp Guehring <pg@futureware.at>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Adding flash programming support for Maxim Integrated MAX32XXX
devices.
Change-Id: I5b0f57a885f9d813240e4bc2d9f765b743e1cfc3
Signed-off-by: Kevin Gillespie <kgills@gmail.com>
Reviewed-on: http://openocd.zylin.com/3543
Tested-by: jenkins
Reviewed-by: Ismail H. KOSE <ihkose@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Checkpatch complains about this (FSF_MAILING_ADDRESS).
Change-Id: Ib46a7704f9aed4ed16ce7733d43c58254a094149
Signed-off-by: Tim Newsome <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/4559
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Added msp432 flash driver to support the TI MSP432P4x and
MSP432E4x microcontrollers. Implemented the flash algo
helper as used in the TI debug and flash tools. This
implemention supports the MSP432E4, Falcon, and Falcon 2M
variants. The flash driver automatically detects the
connected variant and configures itself appropriately.
Added command to mass erase device for consistency with
TI tools and added command to unlock the protected BSL
region.
Tested using MSP432E401Y, MSP432P401R, and MSP432P4111
LaunchPads.
Tested with embedded XDS110 debug probe in CMSIS-DAP
mode and with external SEGGER J-Link probe.
Removed ti_msp432p4xx.cfg file made obsolete by this
patch.
Change-Id: I3b29d39ccc492524ef2c4a1733f7f9942c2684c0
Signed-off-by: Edward Fewell <efewell@ti.com>
Reviewed-on: http://openocd.zylin.com/4153
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Added cc26xx flash driver to support the TI CC26xx and CC13xx
microcontrollers. Driver is capable of determining which MCU
is connected and configures itself accordingly. Added config
files for four specific variants: CC26x0, CC13x0, CC26x2, and
CC13x2.
Note that the flash loader code is based on the sources used
to support flash in Code Composer Studio and Uniflash from TI.
Removed cc26xx.cfg file made obsolete by this patch.
Change-Id: Ie2b0f74f8af7517a9184704b839677d1c9787862
Signed-off-by: Edward Fewell <efewell@ti.com>
Reviewed-on: http://openocd.zylin.com/4358
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Fredrik Hederstierna <fredrik@hederstierna.com>
Added cc3220sf flash driver to support the TI CC3220SF
microcontrollers. Implemented flash driver to support the
internal flash of the CC3220SF. The implementation does not
support the serial flash of the CC32xx family that requires
connection over UART, and not via JTAG/SWD debug. Added config
files for both CC32xx devices (no flash) and CC3220SF (with
flash).
Updated to implement comments from code review.
Additional updates to handle remaining comments from review.
Additional updates per review.
Added code to only request aligned writes and full 32-bit
words down to flash helper algorithm. Updated for recent
changes in OpenOCD flash code.
Removed cc32xx.cfg file made obsolete by this patch.
Change-Id: I58fc1478d07238d39c7ef02339f1097a91668c47
Signed-off-by: Edward Fewell <efewell@ti.com>
Reviewed-on: http://openocd.zylin.com/4319
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Flash loaders refactored to the new style - use generated .inc
instead of hexadecimal machine code in the flash driver source.
Change-Id: If65a2099589e210f9450819b467d67819fd841fc
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4439
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This commit contains a rewrite of the jtagspi protocol and covers both
changes in the jtagspi.c openocd driver and the bscan_spi
(xilinx_bscan_spi) proxy bitstreams. The changes are as follows:
1. Always perform IR scan to ensure proper clearing of BYPASSed DRs.
2. Insert alignment cycles for all BYPASSed TAPs:
The previous logic was erroneous. The delay in clock cyles from a bit
written to the jtag interface to a bit read by the jtag interface is:
* The number of BYPASSed TAPs before this (jtagspi) tap
* The length of the jtagspi data register (1)
* The number of BYPASSed TAPs before this one.
I.e. it is just the number of enabled TAPs. This also gets rid of the
configuration parameter DR_LENGTH.
3. Use marker bit to start spi transfer
If there are TAPs ahead of this one on the JTAG chain, and we are in
DR-SHIFT, there will be old bits toggled through first before the first
valid bit destined for the flash.
This delays the begin of the JTAGSPI transaction until the first high bit.
4. New jtagspi protocol
A JTAGSPI transfer now consists of:
* an arbitrary number of 0 bits (from BYPASS registers in front of the
JTAG2SPI DR)
* a marker bit (1) indicating the start of the JTAG2SPI transaction
* 32 bits (big endian) describing the length of the SPI transaction
* a number of SPI clock cycles (corresponding to 3.) with CS_N asserted
* an arbitrary number of cycles (to shift MISO/TDO data through
subsequent BYPASS registers)
5. xilinx_bscan_spi: clean up, add ultrascale
This is tested on the following configurations:
* KC705: XC7K325T
* Sayma AMC: XCKU040
* Sayma AMC + RTM): XCKU040 + XC7A15T, a board with integrated FTDI JTAG
adapter, SCANSTA JTAG router, a Xilinx Ultrascale XCKU040 and a Xilinx
Artix 7 15T. https://github.com/m-labs/sinara/wiki/Sayma
* Custom board with Lattice FPGA + XC7A35T
* CUstom board with 3x XCKU115-2FLVA1517E
Change-Id: I7361e9fb284ebb916302941735eebef3612aa103
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/4236
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This patch adds support for Blue Gecko and Mighty Gecko chips from
Silabs.
They have different EFM32_MSC_REGBASE and LOCK register offset.
Based on the original patch from Andreas Kemnade.
Change-Id: I166c14960ced7c880b68083badd1b31372fefabe
Cc: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-on: http://openocd.zylin.com/4034
Reviewed-by: Jonas Norling <jonas.norling@cyanconnode.com>
Tested-by: jenkins
Reviewed-by: Fredrik Hederstierna <fredrik@hederstierna.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-by: chrysn <chrysn@fsfe.org>
Fix "couldn't use loader, falling back to page memory writes" error on
stm32l0 which was caused by the use of cortex-m3 instructions in the
flash loader code. The loader is rewritten using cortex-m0 compatible
instructions
Signed-off-by: Armin van der Togt <armin@otheruse.nl>
Change-Id: If23027b8e09f74e45129e1f8452a04bb994c424e
Reviewed-on: http://openocd.zylin.com/4036
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
* port to new migen
* streamline package/part specification
* add pullup (Series3, Series6) and pullnone (Series7) for unused pins
as xilinx impact/vivado do it.
* specify respective toolchains
* build Series7 with vivado (broader support, faster)
* point to prebuilt bitstreams at https://github.com/jordens/bscan_spi_bitstreams
Change-Id: Ibfef3d78f855b754425f3e6131e2e49fa111e09a
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/3173
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
Reviewed-by: Robert Jördens
Reviewed-by: William D. Jones
Reviewed-by: Tim "mithro" Ansell <mithro@mithis.com>
arm-none-eabi target triplet defaults to Little Endian, and so far any
submitted machine code snippets have been verified to be Little Endian.
However a user might override [ARM_]CROSS_COMPILE with an armeb toolchain,
potentially resulting in invalid machine code.
Let's be safe and enforce Little Endian mode for assembler and compiler.
Change-Id: I9cefe24689eaded25d60ffb1f254b254e8d76f9d
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3498
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Instead of using ARM_ prefixed variables and an "arm" target,
use CROSS_COMPILE, AS, OBJCOPY. This requires to switch from ?= to =
to avoid the host assembler getting invoked.
This allows to handle kinetis_ke subdirectory like fm4 and xmc1xxx.
Change-Id: I7ea0bf119f6c4716f4d6002794004730af49eef4
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3505
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
It's Cortex-Xn, not Cortex Xn or cortex xn or cortex-xn or CORTEX-Xn
or CortexXn. Further it's Cortex-M0+, not M0plus.
Cf. http://www.arm.com/products/processors/index.php
Consistently write it the official way, so that it stops propagating.
Originally spotted in the documentation, it mainly affects code comments
but also Atmel SAM3/SAM4/SAMV, NiietCM4 and SiM3x flash driver output.
Found via:
git grep -i "Cortex "
git grep -i "Cortex-" | grep -v "Cortex-" | grep -v ".cpu"
git grep -i "CortexM"
Change-Id: Ic7b6ca85253e027f6f0f751c628d1a2a391fe914
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3483
Tested-by: jenkins
Reviewed-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
The XMC1000 family uses a very different flash interface from XMC4000.
Tested on XMC 2Go and XMC1100 Boot Kit.
Change-Id: I3edaed420ef1c0fb89fdf221022c8b04163d41b3
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/3418
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Tested-by: jenkins
Old code waited only for 7 bytes and didn't handle buffer wrap-around, but
was functional despite.
Change-Id: Iceaf7be1e51368b2ec0a8722cc9ac16d12f9aa63
Signed-off-by: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Reviewed-on: http://openocd.zylin.com/3140
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Tested with MKE04Z8VTG4, MKE02Z64VLC4 and MKE02Z64VLD2.
Change-Id: I606e32a2746a3b96d3e50f3656ba78d40c41c1ea
Signed-off-by: Ivan Meleca <ivan@artekit.eu>
Reviewed-on: http://openocd.zylin.com/3380
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
The Spansion FM4 family of microcontrollers does not offer a way to
identify the chip model nor the flash size, except for Dual Flash vs.
regular layout. Therefore the family is passed as argument and
wildcard-matched - MB9BFx6x and S6E2CC families are supported.
Iterations showed that ...
1) Just doing the flash command sequence from SRAM loader code for each
half-word took 20 minutes for an 8 KB block.
2) Doing the busy-wait in the loader merely reduced the time to 19 minutes.
3) Significant performance gains were achieved by looping in loader code
rather than in OpenOCD and by maximizing the batch size across sectors,
getting us down to ~2 seconds for 8 KB and ~2.5 minutes for 1.1 MB.
(Tested with SK-FM4-176L-S6E2CC-ETH v11, CMSIS-DAP v23.)
gcc, objcopy -Obinary and bin2char.sh are used for automating the
integration of hand-written assembler snippets.
Change-Id: I092c81074662534f50b71b91d54eb8e0098fec76
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2190
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This adds docs, example config, flash driver.
Driver is only supports K1921VK01T model for now.
Change-Id: I135259bb055dd2df1a17de99f066e2b24eae1b0f
Signed-off-by: Bogdan Kolbov <kolbov@niiet.ru>
Reviewed-on: http://openocd.zylin.com/3011
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Many FPGA board speak JTAG and have a SPI flash for their bitstream
attached to them. The SPI flash is programmed by first uploading a
proxy bitstream to the FPGA that connects the JTAG interface to the
SPI interface if the IR contains a certain USER instruction. Then the
SPI flash can be erase, written, read directly through the JTAG DR.
The JTAG and SPI signaling is compatible. Such a proxy bitstream only
needs to connect TDO-MISO, TDI-MOSI, TCK-CLK, and the activate the
chip select when the IR contains the special instruction and the JTAG
state machine is in the DR-SHIFT state.
Change-Id: Ibc21d793a83b36fa37e2704966aa5c837c4dd0d2
Signed-off-by: Robert Jordens <jordens@gmail.com>
Reviewed-on: http://openocd.zylin.com/2844
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This is a new driver for Silicon Laboratories SiM3 microcontroller
family, based on the work of Ladislav Bábel. The driver will try to
detect the type of MCU from the device id register, and if this
fails it will use the flash size from the flash bank command.
Driver added to the documentation and to the README.
TCL script added.
Tests:
* Hardware: SiM3C166 (pre-production) and SiM3U167
* Binary: 4kb, 197kb, 256kb
* Flash protect not tested
Change-Id: I701e0cf505ca8ad99be7f83543fe5055b2f65dcc
Signed-off-by: Andreas Bomholtz <andreas@seluxit.com>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2078
Tested-by: jenkins
After SPI flash was written by the assembly language stub,
the last SPI command was not terminated by raising CS.
This left the SPI device in a hung state that prevented the
flash from being read by the M4 SPIFI controller, even after
the M4 was fully reset. To access the flash via SPIFI, it was
necessary to completely power cycle the board.
This fix adds the missing instructions to raise CS and
terminate the SPI command after the last byte. This allows
the M4 to be resumed or reset cleanly after flashing. The
SPIFI memory is now immediately accessable at address
0x1400 0000 after flashing is complete.
Change-Id: I4d5e03bded0fa00c430c2991f182dc18611d5f48
Signed-off-by: Anders <anders@openpuma.org>
Reviewed-on: http://openocd.zylin.com/2359
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This patch adds support for QSPI flash controller driver for
Marvell's Wireless Microcontroller platform.
For more information please refer,
https://origin-www.marvell.com/microcontrollers/wi-fi-microcontroller-platform/
Following things have been tested on 88MC200 (Winbond W25Q80BV flash chip):
1. Flash sector level erase
2. Flash chip erase
3. Flash write in normal SPI mode
4. Flash fill (write and verify) in normal SPI mode
Change-Id: If4414ae3f77ff170b84e426a35b66c44590c5e06
Signed-off-by: Mahavir Jain <mjain@marvell.com>
Reviewed-on: http://openocd.zylin.com/2280
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This adds example config and flash driver for russian Cortex-M3
microcontroller model.
Run-time tested on MDR32F9Q2I evaluation board; the flash driver
should be compatible with MDR32F2x (Cortex-M0) too but I lack hardware
to test.
There're no status bits at all, the datasheets specifies some delays
for flash operations instead. All being in <100us range, they're hard
to violate with JTAG, I hope. There're also no flash identification
registers so the flash size and type has to be hardcoded into the
config.
The flashing is considerably complicated because the flash is split
into pages, and each page consists of 4 interleaved non-consecutive
"sectors" (on MDR32F9 only, MDR32F2 is single-sectored), so the
fastest way is to latch the page and sector address and then write
only the part that should go into the current page and current sector.
Performance testing results with adapter_khz 1000 and the chip running
on its default HSI 8MHz oscillator:
When working area is specified, a target helper algorithm is used:
wrote 131072 bytes from file testfile.bin in 3.698427s (34.609 KiB/s)
This can theoretically be sped up by ~1.4 times if the helper
algorithm is fed some kind of "loader instructions stream" to allow
sector-by-sector writing.
Pure JTAG implementation (when target memory area is not available)
flashes all the 128k memory in 49.5s.
Flashing "info" memory region is also implemented, but due to the
overlapping memory addresses (resulting in incorrect memory map
calculations for GDB) it can't be used at the same time, so OpenOCD
needs to be started this way: -c "set IMEMORY true" -f
target/mdr32f9q2i.cfg
It also can't be read/verified because it's not memory-mapped anywhere
ever, and OpenOCD NOR framework doesn't really allow to provide a
custom handler that would be used when verifying.
Change-Id: I80c0632da686d49856fdbf9e05d908846dd44316
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/1532
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
* Add Thumb-2 code to write flash memories that don't support DQ5 polling
* Make sure default values for unlock commands are set even if there is no PRI information given by the flash
* Add a fixup to disable DQ5 polling for the SST 39VF3201C
Change-Id: Ib08cf20547d0f500d5f78241521e6b49050c3d40
Signed-off-by: IS2T development team <dev.is2t@gmail.com>
Reviewed-on: http://openocd.zylin.com/1449
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Added support for ARMv7-M targets in arm_nandwrite and
arm_nandread.
Change-Id: Iab1d78d401f735e191c6a8519f3619035a300fae
Signed-off-by: Henrik Nilsson <henrik.nilsson@bytequest.se>
Reviewed-on: http://openocd.zylin.com/1188
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Limited (no page unprotect, no block writes) implementation of EFM32
flash support. Verified with EFM32 development kit and STLink V2 adapter
using SWD.
Change-Id: I3db2054d9aa628a1fe4814430425db3c9959c71c
Signed-off-by: Roman D <me@iamroman.org>
Reviewed-on: http://openocd.zylin.com/1106
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Added a flash driver designed to allow program/erase of
memory-mapped SPI flash chips for LPC43xx/LPC18xx family
micros. This driver includes three algorithms - erase,
write, and SPIFI peripheral initialization (to allow
memory-mapped access after a reset). The driver has been
added to the flash driver table (drivers.c), and the
OpenOCD documentation has been updated to include the flash
driver configuration command.
Change-Id: I79f4ff8f1f07de4e5f2fe4f8c23aeb903f868514
Signed-off-by: George Harris <george@luminairecoffee.com>
Reviewed-on: http://openocd.zylin.com/783
Tested-by: jenkins
Reviewed-by: Aurelien Jacobs <aurel@gnuage.org>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
It's unnecessary and prevents reusing this function to fix
option byte writes.
Also try to disable flash writing after an error.
Change-Id: Ib5a7b768a1523e6b8da1555126fef4c1e60ab083
Signed-off-by: Szymon Modzelewski <szmodzelewski@gmail.com>
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/479
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This enable the stm32f2x flash driver to use the asynchronous
algorithm support.
Speed increase is as follows:
before - wrote 1048576 bytes from file stm32f4x.bin in 30.453804s (33.625 KiB/s)
after - wrote 1048576 bytes from file stm32f4x.bin in 23.679497s (43.244 KiB/s)
This also fixes a bug that was in the old flash loader.
The old loader waited while bit16 of the status reg was 0, the new
loader waits until this bit is 0 as stated in the flash spec.
Bizarrely this bug did not effect programming on any tested parts.
Change-Id: I3efc94d42cbe81283673a8f4203700638080af6e
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/460
Tested-by: jenkins
This enable the Stellaris flash driver to use the asynchronous
algorithm support.
Speed increase is as follows:
before - wrote 65536 bytes from file test.bin in 5.486040s (11.666 KiB/s)
after - wrote 65536 bytes from file test.bin in 2.274001s (28.144 KiB/s)
Change-Id: I9004c9aadffa1ae3b0cbf908e6549b5b1f794508
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/403
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Correct the offset to the read pointer when clearing it on error.
Also restrict the instruction set to armv6-m so the flash driver can be
used on Cortex-M0 parts with the same flash controller.
Change-Id: I380f9dabcc41fb6e4d43a7e02f355e2381913f39
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/399
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Reviewed-by: Jonathan Dumaresq <jdumaresq@cimeq.qc.ca>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Let the target algorithm be running in the background and buffer data
continuously through a FIFO. This reduces or removes the effect of latency
because only a very small number of queue executions needs to be done per
buffer fill. Previously, the many repeated target state changes, register
accesses (really inefficient) and algorithm uploads caused the flash
programming to be latency bound in many cases. Now it should scale better
with increased throughput.
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
This patch adds the initial dual flash bank support for devices such
as the stm32xl family.
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>