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* NOR FLASH: only erase/unlock whole sectorsDavid Brownell2009-12-181-8/+36
| | | | | | | | | | | | | | | Much to my surprise, I observed a "flash erase_address ..." command erasing data which I said should not be erased. The issue turns out to be generic NOR flash code which was silently, and rather dangerously, morphing partial-sector references into unrequested whole-sector ones. This patch removes that low-level morphing. If desired, it can and should be done in higher level code. (We might need to fix some stuff in the GDB server code.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Subject: flash fill[bwh] should use bulk i/oDavid Brownell2009-12-181-2/+4
| | | | | | | | | It's currently allocating a big buffer but writing it out in units of sizeof(host's pointer) ... sub-optimal. Plus fix a couple minor coding style goofs. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: fix min buffer length checksDavid Brownell2009-12-181-7/+4
| | | | | | | Word count == size/4; cope. And increase buf_min so it's large enough to cover the overhead in my tests. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: update bulk flash writesDavid Brownell2009-12-181-20/+45
| | | | | | | | | | | | | | | | | | | | | | | Try to right-size the SRAM buffers, by not: - using them for very small writes - giving up when a large buffer isn't available - allocating buffers much larger than their data Also don't: - bother loading the code unless we allocate the writebuffer too - be so verbose with messaging: * be more concise * reduce importance (e.g. DEBUG not WARNING) * remove duplication The minimum buffer size is something of a guess. It's eight times smaller than before, almost the same size as the code being downloaded. It probably deserves some tuning. Also, note an erratum affecting flash protection on some chips; and narrow many over-wide lines affected by the above changes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* NAND write data page refactoring.Dean Glazeski2009-12-182-59/+69
| | | | | | | | | | | Refactored the write page raw function into two new functions for writing data to a NAND device and then another function to finish up a write to a NAND device. This includes some new updates to introduce more error checking to existing code. [dbrownell@users.sourceforge.net: fix fault handling, whitespace] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* NAND read data page refactor.Dean Glazeski2009-12-182-45/+25
| | | | | | | | | | | | | | Added a new function to encapsulate reading a page of data from a NAND device using either the read_block_data function of a NAND controller or to use direct reading of data from the NAND device. This also adds some performance enhancements and uses the read_data function if the read_block_data function fails safely (because it can't allocate a buffer in the working area). [dbrownell@users.sourceforge.net: fix fault handling, whitespace] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: commentsDavid Brownell2009-12-162-12/+34
| | | | | | | | | | | Someday revisit various issues: Tempest parts support writing more than one word at a time; for some target firmware it might be necessary to save and restore flash IRQ configuration. (The safest policy is likely to always reset after flash updates.) Plus swap some undesirable TAB characters with SPACE. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: probe() cleanupsDavid Brownell2009-12-161-86/+42
| | | | | | | | | | | | | | Fix potential memory leak: make sure the per-bank data structures are only allocated in probe(), and that calling probe() multiple times is a NOP. Use it for auto_probe(). Require probe() to have done its thing: don't make access routines cope with it not having been called. Shrink a bunch of failure paths; and in some cases, correct them. Don't needlessly insist on a halted target for probe(). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: remove needless codeDavid Brownell2009-12-161-50/+1
| | | | | | | No point in reading and discarding a status value when fetching part description data. Or having that needless "#if 0" code. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: avoid chip writesDavid Brownell2009-12-161-13/+10
| | | | | | | | | | | | Previously "reading" clock info (and part info) also, as a side effect, wrote the flash timing register. Instead, be more safe: "reading" should only read. Write paths still refresh timing, coping with changes the application code may have made. Also rename the routine which sets flash timing, indicating what it's really doing; it's got nothing to do with a "mode". Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* NOR: bugfix "flash fill[bwh] ..." helptextDavid Brownell2009-12-161-3/+3
| | | | | | These commands don't have a "bank" parameter. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: device IDsEric Wetzel2009-12-141-150/+168
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I added the remaining devices and device IDs to stellaris.c, and removed several devices that don't exist on the Stellaris web page. Additionally, I found a few devices with duplicate IDs ... the DID1 Version Number for LM3Sxxx parts have DID1 Version = 0x0, and for LM3Sxxxx have DID1 Version = 0x1. So I extended the comparison to use the VER and FAM fields from DID1 also. ID=0x33: LM3S812 (DID1v0) and LM3S2616 (DID1v1) ID=0x39: LM3S808 (DID1v0) and LM3S2276 (DID1v1) These are the parts I removed from the file for lack of documentation (no data sheet to confirm part ID): LM3S318, LM3S1101, LM3S1108, LM3S1615, LM3S1616, LM3S2016, LM3S2101, LM3S2108, LM3S3759, LM3S3768, LM3S5757, LM3S5767, LM3S5768, LM3S5769, LM3S6815, LM3S6816, LM3S6915, LM3S6916, LM3S6111, LM3S6118. Also, sort devices according to part number. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* LPC2000: rename "r13_svc" as "sp_svc"David Brownell2009-12-121-1/+1
| | | | | | This driver didn't get updated when the name changed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* add missing call to add new NAND devicesZachary T Welch2009-12-112-0/+4
| | | | | I forgot to add a call to the newly factored nand_device_add(), along with its forward declaration.
* fix 'write_image' usage informationZachary T Welch2009-12-111-1/+1
| | | | | The 'flash write_image' command erroneously listed the bank number, when it actually uses target addresses to do that lookup for the user.
* anotyer cygwin compile fixDavid Brownell2009-12-101-1/+2
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* stellaris: flash protection updates, minor fixesDavid Brownell2009-12-092-68/+119
| | | | | | | | | | | | | | | | | | | | | | | | | Bugfix the read side of flash protection: - read the right register(s)! - handle more than 64K - record the results in the right places - don't display garbage. Partially bugfix the write side: - use 2KB lock regions instead of 1KB pages (!) - validate input range - don't try to _remove_ protection (it's write-once) - #define values we'll need to commit writes. - ... still doesn't handle pages over 64KB mark, or commit writes And minor cleanup and fixes: - get rid of some forward decls - properly locate a doxygen comment - fix some bad indentation - remove superfluous #include - add a new part ID (many are still missing) - make the downloaded algorithm code be read-only Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* Comment and doxygen fixesDavid Brownell2009-12-092-4/+2
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* build: add build/src to include pathØyvind Harboe2009-12-083-3/+8
| | | | | | This allows including generated include files. Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* ARM: use <target/arm.h> not armv4_5.hDavid Brownell2009-12-076-6/+6
| | | | | | | | | | | | | | Move most declarations in <target/armv4_5.h> to <target/arm.h> and update users. What's left in the older file is stuff that I think should be removed ... the old register cache access stuff, which makes it awkward to support microcontroller profile (Cortex-M) cores. The armv4_5_run_algorithm() declaration was moved too, even though it's not yet as generic as it probably ought to be. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: move opcode macros to <target/arm_opcodes.h>David Brownell2009-12-071-2/+5
| | | | | | | | | | | | | | | Move the ARM opcode macros from <target/armv4_5.h>, and a few Thumb2 ones from <target/armv7m.h>, to more appropriate homes in a new <target/arm_opcodes.h> file. Removed duplicate opcodes from that v7m/Thumb2 set. Protected a few macro argument references by adding missing parentheses. Tightening up some of the line lengths turned up a curious artifact: the macros for the Thumb opcodes are all 32 bits wide, not 16 bits. There's currently no explanation for why it's done that way... Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* add 'flash list', rewrite 'flash banks'Zachary T Welch2009-12-062-20/+28
| | | | | | | Rename the existing 'flash banks' implementation as 'flash list', and replace the broken 'flash_banks' TCL wrapper with a new command handler. Adds documentation for the new 'flash list' command in the user guide.
* allow 'flash_banks' command to give GDB outputZachary T Welch2009-12-061-1/+1
| | | | | | | | | The 'flash banks' command produces a list that needs to be formatted properly for GDB's 'mem info' to work properly. The flash_banks TCL wrapper provided this formatting, but wrappers no longer work for second-level commands as they did in the past. With this patch, the 'flash_banks' command can be used with the new command syntax and display the required information.
* fix NOR flash regressionZachary T Welch2009-12-061-0/+2
| | | | | When factoring the bank setup command into flash_bank_add(), I forgot to include a call to the new helper.
* misc code review updatesDavid Brownell2009-12-051-2/+4
| | | | | | | | | More updates from the code review by Steve Grubb <sgrubb@redhat.com>. The Jim float-comparision bug just gets a comment not a fix, though. Cc: Steve Grubb <sgrubb@redhat.com>. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* NOR: add 29LV400BC flash deviceMathias Kuester2009-12-051-0/+17
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* rename nand.h to flash//nand/core.hZachary T Welch2009-12-0419-27/+32
| | | | | | | | | Rename nand.h as flash/nand/core.h, chase consumers. The public APIs need to be sorted out with imp.h, but this allows other changes to begin improving the separation between policy and mechanism. Moves #include <target/target.h> and #include "driver.h" into the internal headers or source files, removing it from <flash/nand/core.h>.
* move remaining nand helper filesZachary T Welch2009-12-048-11/+9
| | | | Move remaining NAND implementation files into src/flash/nand/.
* split nand.c into nand/{core,fileio,tcl}.cZachary T Welch2009-12-047-872/+1005
| | | | | | | Moves commands into nand/tcl.c and core implementation to 'nand/core.c' and 'nand/fileio.c'. Eliminates 'flash/nand.c'. Adds 'nand/imp.h' to share routines between TCL commands and core.
* split NAND driver handling into nand/driver.[ch]Zachary T Welch2009-12-045-104/+205
| | | | | | | This work parallels the NOR directory, encapsulating the NAND drivers into a separate file. This takes an extra step by encapsulating the type of data structure used to manage the drivers, allowing it to be changed from an array to a dynamic list in the future.
* ARM: rename armv4_5_algorithm as arm_algorithmDavid Brownell2009-12-048-10/+10
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: ARMV4_5_COMMON_MAGIC --> ARM_COMMON_MAGICDavid Brownell2009-12-048-10/+10
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: rename ARMV4_5_MODE_* as ARM_MODE_*David Brownell2009-12-048-10/+10
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM: rename ARMV4_5_STATE_* as ARM_STATE_*David Brownell2009-12-048-10/+10
| | | | Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* remove flash.h from treeZachary T Welch2009-12-0416-61/+2
| | | | | Remove the now vestigial <flash/flash.h> header from the tree, replacing a few references with <flash/nor/core.h>
* split flash.h into into flash/nor/*.hZachary T Welch2009-12-046-326/+358
| | | | | | | | | Move the bulk of the flash.h file into flash/nor/core.h, leaving an empty husk that will be removed in the next patch. The NOR driver structure is an implementation detail, so move it into its own private header file <flash/nor/driver.h> along with helper declaration for finding them by name.
* remove target.h from flash.hZachary T Welch2009-12-0420-20/+30
| | | | | The flash.h header does not require the target.h header file, but its implementation source files do. Move it to flash/nor/imp.h.
* split NOR and NAND flash headersZachary T Welch2009-12-043-12/+14
| | | | | Moves common flash errors to <flash/common.h> to decouple these two mostly unrelated trees of code.
* eliminate src/flash/flash.cZachary T Welch2009-12-043-221/+187
| | | | | Move remaining NOR flash implemenation into flash/nor/core.c Removes flash.c from the build, leaving only its header to split.
* add flash/nor/drivers.cZachary T Welch2009-12-044-55/+79
| | | | | Encapsulates access to the flash_drivers array, providing a base of operations for future dynamic driver module loading features.
* move more nor flash implementation detailsZachary T Welch2009-12-045-999/+1011
| | | | | | | | Splits the exec mode commands out of flash.c into the flash/nor/ files. The routines used by these high-level commands are moved into nor/core.c, with their internal declarations placed in nor/imp.h. Fixes distribution of <flash/nor/core.h> header.
* add flash/nor/core.[ch]Zachary T Welch2009-12-045-62/+149
| | | | | | | | | | | | | | | The newly moved flash TCL routines access the internals of the module too much. Fix the layering issues by adding new core NOR flash APIs: <flash/nor/core.h>: - flash_driver_find_by_name() - self-descriptive <flash/nor/imp.h>: - flash_bank_add() - encapsulates adding banks to bank list - flash_bank_list() - encapsulates retreiving bank list This allows the externs in flash/nor/imp.h to be removed, and these mechanisms may now be re-used by other flash module code.
* add flash/nor/{tcl.c,imp.h} from flash/flash.cZachary T Welch2009-12-044-175/+235
| | | | | | Moves the top-level 'flash' command handlers into flash/nor/tcl.c, with flash/nor/imp.h providing an internal implementation header to share non-public API components.
* Make ARM NAND I/O operations aware of last opDean Glazeski2009-12-031-4/+13
| | | | | | | | | Updates the ARM NAND I/O code to look at and update the op field of arm_nand_data to reflect the last operation performed. It uses this field to copy the correct code to the target in the case where the struct is used for reads and writes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* ARM NAND I/O interface updateDean Glazeski2009-12-033-7/+39
| | | | | | | | | | | Modify the arm_nand_data struct to better support both read and write operations while using the same struct. An additional field was added, and initialized, to record the last operation so that the correct code can be loaded to the working area. [dbrownell@users.sourceforge.net: merge init patch, tweak GPL note] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* NAND page command refactoring.Dean Glazeski2009-12-032-59/+35
| | | | | | | | | Created a new function that handles sending a command and the address information for pages to a NAND device. [dbrownell@users.sourceforge.net: tweaked line lengths, name 'oob_only'] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
* remove tertiary include pathsZachary T Welch2009-12-033-16/+3
| | | | | With all #include directives converted, we only need to have the top-level src/ directory in the search path.
* change #include "../hello.h" to "hello.h"Zachary T Welch2009-12-032-1/+3
| | | | | | Before we can -I the top-level src/ directory alone, references to "hello.h" must be updated. This is an internal header, so it does not need angle brackets.
* change #include "s3c24xx_regs.h" to <flash/nand/s3c24xx_regs.h>Zachary T Welch2009-12-031-1/+1
| | | | | | | | | | | | Changes from the flat namespace to heirarchical one. Instead of writing: #include "s3c24xx_regs.h" the following form should be used. #include <flash/nand/s3c24xx_regs.h> The exception is from .c files in the same directory.
* change #include "ocl.h" to <flash/nor/ocl.h>Zachary T Welch2009-12-031-1/+1
| | | | | | | | | | | | Changes from the flat namespace to heirarchical one. Instead of writing: #include "ocl.h" the following form should be used. #include <flash/nor/ocl.h> The exception is from .c files in the same directory.
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