Commit Graph

971 Commits

Author SHA1 Message Date
Rodrigo L. Rosa d343941386 doxy & cleanup 2011-06-12 11:18:27 +02:00
Rodrigo L. Rosa cbe201fe6b fix protection behavior 2011-06-12 11:18:27 +02:00
Rodrigo L. Rosa 7b0ead520d cleanup trailing whitespaces 2011-06-12 11:18:27 +02:00
Rodrigo L. Rosa f4a3db0d4a fix flash driver size, sector erase 2011-06-12 11:18:27 +02:00
Stefan Mahr 5d9b7cdd2b mips: add nor flash write from memory block 2011-06-05 22:45:21 +02:00
Freddie Chopin f6315d5e5b Fix "unused variable" warnings (errors) detected with GCC 4.7.0 - trivial fixes 2011-06-04 09:35:13 +02:00
Damjan Marion 9b4628ddab Fixed values for Samung NAND chips 2011-05-28 19:44:17 +02:00
Damjan Marion db91a36fdd Improve NAND flash detection
Detect based on both manufacturer id and chip id
if manufacturer id is defined in table
2011-05-28 14:30:58 +02:00
Damjan Marion acdf14eb43 Reorganize NAND flash table
- added manufacturer field
- name moved to the end for better text alignment
2011-05-28 14:27:48 +02:00
Stefan Mahr 6d6837f988 add support for spansion flash on mindspeed c300 eval board
Signed-off-by: Stefan Mahr <stefan.mahr@sphairon.com>
2011-05-25 22:02:40 +02:00
Rodrigo L. Rosa ef599aebfd flashing speed improved using queued jtag. error propagation improved. 2011-05-19 07:27:02 +02:00
Rodrigo L. Rosa 129f099ef1 flash support (only full erase/write) for 568013 and 568037 2011-05-18 18:47:55 +02:00
Øyvind Harboe 36d60ee6c8 cfi: leave check on whether target is running to target_write_memory()
there was a check in clearing the status register that
called exit() if the target was running. target_write_memory()
has such a check and will report the error correctly.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2011-04-27 23:02:28 +02:00
SimonQian 5bd1f0bad4 add STM32F2 revY 2011-04-26 12:05:07 +02:00
SimonQian 2e88162b00 remove read of flash_size in STM32F2 2011-04-26 12:04:57 +02:00
Alexandre Pereira da Silva 32ede8fa21 Fix non cfi x16 nor flash connected to x8 bus. The ids in the table should be masked before comparison. 2011-04-19 12:53:05 +02:00
Alexandre Pereira da Silva e105915a4a Make the LPC32xx nand driver support up to 5 address cycles. This will only work in the SLC driver. 2011-04-19 12:51:49 +02:00
Alexandre Pereira da Silva 2ed19d3b9b Make the LPC32xx slc nand driver the default 2011-04-19 12:51:36 +02:00
Spencer Oliver f9feeacb7f pic32: update pic32mx flash driver
Update devices as per the latest programming manual.

We now use the full DEVID to identify the target. Previously we used
a 8bit id but that has now been changed in the manual.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2011-04-14 09:17:17 +01:00
Øyvind Harboe 378567da4e mips: illustrates how to improve performance
Do not require unecessary roundtrips for clocking out
data.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2011-04-01 08:59:11 +02:00
Olivier Schonken ac6f8f9616 at91sam3: Modified cidr comparisson to ignore version bits
production processor versions increment, thus the version
bits should be ignored for future proofing. e.g.
Engineering sample version == 0x00, production version 0x01
2011-03-30 16:01:00 +02:00
Alexandre Pereira da Silva 56f705525c Clarify LPC32XX address cycles message
Hi,

This is a more descriptive message about LPC32XX error, when the nand
chip needs 5 address cycles.

Thanks.
2011-03-30 08:04:15 +02:00
Alexandre Pereira da Silva 54ec0c4a8a Add Micron 2GiB nand
Hi,

This will add support for a new nand chip device.

Thanks.
2011-03-30 08:04:01 +02:00
Uwe Hermann 33a17fd359 Fix a bunch of typos.
Fix a bunch of typos.

Most are in code comments, so nothing should break. UNKOWN_COMMAND and
CMD_UNKOWN are not used elsewhere, so correcting the spelling should
also not break anything.
2011-03-17 07:25:25 +01:00
SimonQian 2bd6a4795a fix compile error under MinGW 2011-02-18 13:54:22 +01:00
Bjarne Steinsbo 3f4b9e334b lpc32xx: Flash driver
Based on the lpc3180 driver, but released as a separate driver for two reasons:
 1) I don't have an lpc3180 to test it against, so it might unintentionally break compatibility.
 2) It's using a different OOB layout than lpc3180.

Rewritten so that it no longer borrows code from the NXP CDL library.  Instead borrowing code from the u-boot port to lpc32xx, written by Kevin Wells.

Tested on lpc3250 (Hitex LPC3250-Stick).  OOB layout is compatible with LPCLinux.
2011-02-15 20:23:40 +01:00
Øyvind Harboe 5ca7cbe2d2 stm32x: add support for STM32F20x
ready for wider testing and comments on basic erase + programming.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2011-02-04 10:55:43 +01:00
Øyvind Harboe a0858bfed0 cfi: use ARM32 machine code on all CPUs but Cortex M3
ARM11 broke with aa61a3b3d8
as the code only checked for arm 7/9.

CFI probably needs work for non-ARM targets but perhaps
not adding working area memory to e.g. MIPS will give
the default slow CFI support.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2011-01-31 10:30:48 +01:00
Thomas Schmid 4df93cb95f Fixed small mistakes in at91sam3 info command
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2011-01-26 12:38:27 +00:00
Eric Wetzel a727418184 stellaris: automatically generate and update device IDs
Added a Perl script to contrib that uses the header files in StellarisWare complete Firmware Development Package provided by TI/Luminary to generate a new list of device IDs

Used Perl script and revision 6734 of TI/Luminary StellarisWare to update device IDs
2011-01-19 08:41:03 +01:00
Erik Botö 4749a40821 Flash driver for em357
Hi,

I took the stm32x NOR flash driver and adapted it for the Ember EM357
chip. This chip is very similar to em351 and stm32w so the driver
should be easily extended to support those as well if anyone can get
their hands on some of those for testing.

changelog:
Added NOR flash driver em357

Best regards,
Erik Botö
2011-01-14 14:56:46 +01:00
Santeri Salko 5b1efd0176 str9xpec: Find flash controller from the chain.
Find the flash controller by position since it is before the core,
not after it.

This fixes the problem that str9xpec enable_turbo (or any other
str9xpec command) did not work. (See my post in
http://forum.sparkfun.com/viewtopic.php?f=18&t=25542)

Signed-off-by: Santeri Salko <santeri.salko@gmail.com>
2011-01-14 14:55:24 +01:00
Spencer Oliver 8684bd1342 cfi: fix release build warnings
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2011-01-10 09:37:18 +00:00
Eric Wetzel 0535531d27 nit: more LOG_* \n fixes
Remove extra \n from LOG_DEBUG, LOG_INFO, and LOG_WARNING messages

Remove LOG_INFO_N
LOG_INFO_N was only used once and had a \n at the end

Change LOG_USER_N calls that end with \n to LOG_USER
2011-01-09 21:35:23 +01:00
Spencer Oliver aa61a3b3d8 cfi: use safer arch detection
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2011-01-06 10:35:59 +00:00
Jonathan Dumaresq 6a1750e961 Add the support for the armv7m arch.
Signed-off-by: Jonathan Dumaresq <jdumaresq@cimeq.qc.ca>
2011-01-06 08:05:02 +01:00
Eric Wetzel a665ef716a nit: do not add \n at end of LOG_ERROR
Fixed in many other places, and submitted in response to Øyvind's invitation.
2011-01-05 21:46:12 +01:00
Øyvind Harboe e8eb5bbc04 nit: do not add \n at end of LOG_ERROR
This is done in many other places as well, patch
to fix gratefully accepted!
2011-01-03 13:37:41 +01:00
Øyvind Harboe c69553cbc5 error handling: the error number is not part of the user interface
Do not propagate error number to user. This is for internal
programming purposes only. Error messages to the user is
reported as text via LOG_ERROR().

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2011-01-03 13:33:27 +01:00
Michael Schwingen 09a0a69c09 cfi_protect is not implemented on Spansion flashes (many do not even have protection bits). Demote from error to warning, so that common board code can use "flash write_image erase unlock" regardless of the flash type.
Signed-off-by: Michael Schwingen <michael@schwingen.org>
2011-01-02 21:15:27 +01:00
Michael Schwingen d8ece229f9 non-CFI flash code uses data from CFI structures. Make sure that timeouts are filled in on non-CFI flashes, and print CFI information in all cases, nut just on CFI flashes.
Signed-off-by: Michael Schwingen <michael@schwingen.org>
2011-01-02 21:15:08 +01:00
Antonio Borneo 093ec6656a NAND/S3CXXXX: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:58:58 +01:00
Antonio Borneo f49283a062 NAND/ORION: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:58:40 +01:00
Antonio Borneo 5e27647e22 NAND/NUC910: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:58:26 +01:00
Antonio Borneo 457556b146 NAND/MX3: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:58:19 +01:00
Antonio Borneo b7b9ad755e NAND/MX2: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:57:58 +01:00
Antonio Borneo 35c30e9ee7 NAND/LPC3180: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:57:45 +01:00
Antonio Borneo 3db34f8447 NAND/DAVINCI: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:57:30 +01:00
Antonio Borneo 2e1f2b50fd NAND/AT91SAM9: remove private "target" copy
Remove "target" form private data, and use
common one in struct nand_block.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:57:15 +01:00
Antonio Borneo 5f3603b8ef NAND/TCL: prepare for common "target" reference
Every NAND driver keeps private copy of "target"
structure.
Prepare infostructure to move private "target"
copy in common/shared struct nand_device.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:56:59 +01:00
Antonio Borneo 21a1c6ec33 NAND/TCL: fix segfault on syntax error
Fix segfault if incomplete command "nand device dummy"
is executed.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:54:20 +01:00
Antonio Borneo 7bb79f0f51 NAND/CORE: Comment use of alive_sleep()
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:53:55 +01:00
Antonio Borneo 52044a17ce NAND/CORE: Replace decimal dot in messages
Table of NAND devices reports operating voltage.
Replace comma with proper decimal dot.

Øyvind: "." is correct for UK/US, but incorrect for
many other languages. OpenOCD is not localized at this
point, so sticking to "." for US/UK should be OK.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2011-01-02 19:52:53 +01:00
Antonio Borneo b0759dfc53 flash/nand: review NAND driver interface
From struct nand_flash_controller :
- remove unused field register_commands;
- remove field controller_ready, exported but
  never referenced.
Remove dead code pointed by controller_ready.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2011-01-02 19:49:36 +01:00
Andrew MacIsaac 50e79d60ce Compilation Warnings on OS X 10.5
I received a number of "-Wshadow" related warnings (treated as errors) while
trying to build on OS X Leopard.  In addition, there were two miscellaneous
other warnings in the flash drivers.  Attached are two patches which correct
these issues and the commit messages to accompany them.

My system has the following configuration (taken from uname -a):

Darwin 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009;
root:xnu-1228.15.4~1/RELEASE_I386 i386

=== Werror_patch.txt Commit Message ===
compilation: fixes for -Wshadow warnings on OS X

These changes fix -Wshadow compilation warnings on OS X 10.5.8

Compiled with the following configure command:

../configure --prefix=/usr/local --enable-maintainer-mode --enable-jlink
--enable-ft2232_libftdi

=== flash_patch.txt Commit Message ===
compilation: fixes for flash driver warnings on OS X

These changes fix two compilation warnings on OS X 10.5.8:

../../../../src/flash/nor/at91sam3.c:2767: warning: redundant redeclaration
of 'at91sam3_flash'
../../../../src/flash/nor/at91sam3.c:101: warning: previous declaration of
'at91sam3_flash' was here

and

../../../../src/flash/nor/stmsmi.c:205: warning: format not a string literal
and no format arguments

Compiled with the following configure command:

../configure --prefix=/usr/local --enable-maintainer-mode --enable-jlink
--enable-ft2232_libftdi
===

Andrew
2010-12-29 22:16:28 +01:00
Øyvind Harboe eea91f71f9 warning: fix warning where GCC didn't catch a doubly declared global structure
Why hasn't earlier versions of GCC caught this? Bug?

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-12-29 22:14:43 +01:00
Øyvind Harboe 4f9a9b8eba warnings: use more 'const' for char *
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-12-29 22:07:39 +01:00
Spencer Oliver 4994c60083 stm32x : always use valid flash base address
This change matches the previous behaviour of using the known
flash address.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-23 13:10:15 +00:00
Spencer Oliver 56d9ee779d flash: print flash bank name on flash info cmd
The flash bank name is a required element in adding flash banks,
however other than looking at the config file there is no way of
getting the name used in openocd.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-23 12:39:22 +00:00
Spencer Oliver 319555cd35 stm32: fix reversed option byte write
This has been a long standing bug that has never been spotted.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-23 12:11:17 +00:00
Spencer Oliver 690e054a3d stm32: update option bytes for stm32xl family
add supoort for xl family boot bank option.
The option byte handling will be cleaned up in a later patch.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-23 12:11:16 +00:00
Spencer Oliver 3d834bdab7 stm32: add stm32 xl family flash support
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-23 12:11:14 +00:00
Spencer Oliver 83e5aaf577 stm32: add dual flash bank support
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>
2010-12-23 12:11:13 +00:00
Paul Richards 5787853bc1 Fix for segfault in handle_nand_dump_command. 2010-12-15 14:14:02 +01:00
Øyvind Harboe 969b1e66dd stm32: fix unprotect
the unprotect fn in stm32 needs to unprotect more sectors
than was requested aligned to some boundary.

Print warning when this happens.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-12-15 09:48:37 +01:00
Øyvind Harboe 39dbb516a4 flash: clarify protect documentation
some chips unprotect more than the range asked for. The
protect fn, must unprotect/protect minimally the range given.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-12-15 09:48:37 +01:00
Spencer Oliver cbf48bed6a contrib: add source to the cfi flash loaders
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 19:37:39 +00:00
Spencer Oliver ae68ddc25e cfi: disable buffer writes for M29W128G
For some reason buffer writes for the M29W128G do not work reliably,
so disable them.

See:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=504a3e72208fc6a65924426ff5693982590bccdc

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 13:36:09 +00:00
Spencer Oliver 26ba6ea511 cfi: allow optional buffer write support
Some flash's do not support buffer writes, so we now check
they are supported before trying to use them.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 13:36:09 +00:00
Spencer Oliver fe4fe623d5 cfi: calculate correct timeouts
The existing code used incorrect timeout values for the various cfi
operations. We now calculate the timeouts and convert to
msecs if necessary.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 13:36:08 +00:00
Spencer Oliver b4ee2864e4 cfi: prefix string hex output
Add hex prefix so we know output is not decimal.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 13:36:07 +00:00
Spencer Oliver 6165f14ee2 cfi: add time format to cfi query output
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 13:36:07 +00:00
Spencer Oliver b3052b614c cfi: whitespace and long line cleanup
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-12-10 13:36:06 +00:00
Rolf Meeser f2a1b7f3af Fix sector layout for 504-KiB LPC2000 devices 2010-12-04 09:35:33 +01:00
Rolf Meeser 40a93104d5 lpc2900.c: Improve debug output for device probing 2010-12-01 08:48:02 +01:00
Rolf Meeser 71031bcf7f lpc2900.c: Add support for new device LPC2926 2010-12-01 08:47:57 +01:00
Rolf Meeser 1bd87f5dba LPC2900: Avoid false positive reprobing if first probing fails 2010-12-01 08:47:51 +01:00
Antonio Borneo 1892a2b510 FLASH/NOR: Rename spearsmi.c to stmsmi.c
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-23 08:37:35 +01:00
Antonio Borneo 42082f7c23 FLASH/NOR: rename from spearsmi to stmsmi
STMicroelectronics controller SMI is not SPEAr specific.
Rename it and change name to every symbol in the code.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-23 08:37:34 +01:00
Antonio Borneo 4bbdf966d4 STR750: Add SMI interface support
Modified spearsmi driver to include support for STR75x
Added missing initialization in tcl file for STR750

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-23 08:37:31 +01:00
Antonio Borneo e6fc371e2e NOR/SPEARSMI: fix segfault
If flash chip is not listed in the table, or if no flash is
connected, pointer must be properly initialized.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-23 08:37:28 +01:00
Øyvind Harboe 8902789f0d flash: iterating over an address range now handles multiple banks
e.g. flash erase_address now works across an address
range that spans multiple flash chips.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-11-22 11:16:40 +01:00
Spencer Oliver 838cd58e24 build: add common.mk
Rather than specifying common makefile variables move
them all to a common.mk.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
2010-11-18 14:05:56 +00:00
Antonio Borneo ab263fafbb FLASH/NOR: Remove useless file tms470.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:43 +01:00
Antonio Borneo 29d7031fe3 FLASH/NOR: Remove useless file str9xpec.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:39 +01:00
Antonio Borneo 7bbd6c7683 FLASH/NOR: Remove useless file str9x.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:38 +01:00
Antonio Borneo d16dbaa0fc FLASH/NOR: Remove useless file str7x.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:36 +01:00
Antonio Borneo 5d09972931 FLASH/NOR: Remove useless file stm32x.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:35 +01:00
Antonio Borneo f1f8d9a6c9 FLASH/NOR: Remove useless file stellaris.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:33 +01:00
Antonio Borneo f5ae179519 FLASH/NOR: Remove useless file pic32mx.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:19 +01:00
Antonio Borneo 4cc3597944 FLASH/NOR: Remove useless file lpc288x.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:07 +01:00
Antonio Borneo fb7c709804 FLASH/NOR: Remove useless file lpc2000.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:02:03 +01:00
Antonio Borneo 28bbe4e983 FLASH/NOR: Remove useless file avrf.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 17:01:59 +01:00
Øyvind Harboe 2b546fdc45 flash: fix bug with multiple back-to-back flash chips
flash programming via flash write_image or gdb load would
produce a bogus error message that the flash chip was to
small.

The solution is to limit the current flash programming
run to the current chip.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
2010-11-17 16:56:28 +01:00
Antonio Borneo 52558354e6 FLASH/NOR: Remove useless file at91sam7.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 08:55:39 +01:00
Antonio Borneo d213e1a12c FLASH/NOR: Remove useless file at91sam3.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 08:55:35 +01:00
Antonio Borneo c5414f95b6 FLASH/NOR: Remove useless file spearsmi.h
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 08:55:31 +01:00
Antonio Borneo 49f42ab51d NOR/SPEARSMI: Add comments about SPI
SMI interface hides the real SPI bus between SPEAr and
external flash.
Added comments to highlight the SPI operation, to help a
future rework in SPI generic and SPEAr specific drivers.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-17 08:55:08 +01:00
Antonio Borneo e7a8de1762 NOR/SPEAr: Add support for Serial NOR
Add support and documentation for STMicroelectronics
SPEAr Serial Memory Interface (SMI).
Code tested on SPEAr3xx only.

Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
2010-11-16 09:16:11 +01:00
Freddie Chopin 015bf55944 Add comments and tiny improvements to STM32 flash loader algorithm
Add comments to assembly flash loader for STM32. Add tiny improvement in
size of the algorithm (40 vs 48 bytes) and tiny speed improvement (~1.5%,
as time is wasted on waiting for end of operation anyway).

Signed-off-by: Freddie Chopin <freddie_chopin@op.pl>
2010-11-15 09:17:14 +01:00