Subversion Repositories openrisc

2008-11-17  Jonathan Larmour  

        * src/strata.c: leave _FLASH_PRIVATE_ to the private strata.h

        (Change from bartv 2004-12-02, merged from flash_v2 branch).

        * cdl/flash_strata.cdl: Indicate that this driver uses

        the legacy flash device API.

2005-01-14  Thomas Koeller  

        * src/flash_query.c (flash_query): Fix switching the flash back to

        array mode, which was broken on MIPS platforms. Always write

        control codes to offset 0.

2004-09-02  Mark Salter  

        * src/flash_query.c (CYGHWR_FLASH_READ_QUERY): Add platform hook

        to handle access to query info.

        * src/flash_program_buf.c (CYGHWR_FLASH_WRITE_BUF): Add platform

        hook handle access to write buffer.

2004-08-21  Andrew Lunn  

        * src/flash_unlock_block.c (flash_unlock_block):

        * cdl/flash_strata.cdl: CDL to control the maximum number of

        blocks the driver supports. Some of the newer strata device has more

        than the default maximum of 128. Problem pointed out by Kevin Zhang.

2005-01-26  Scott Wilkinson 

        * src/strata.h:

        * src/strata.c:

        Flash from STMicro is compatible with the Intel strata chips,

        so detect them as well.  Check for manuf id 0x20.

2003-10-29  Jonathan Larmour  

        * src/flash_unlock_block.c (flash_unlock_block): test lock bit

        explicitly - newer flash parts use the reserved bits in the

        returned data.

2003-09-11  Jani Monoses 

        * src/flash_erase_block.c (flash_erase_block):

        * src/flash_program_buf.c (flash_program_buf): Fix bootblock handling

        in erase. Fix erase and word-program for Synchronous Strata and later

        chips where block address and word address are required in the first

        cycle of the operation while for earlier parts any address was good.

2003-09-10  Jani Monoses 

        * cdl/flash_strata.cdl:

        * src/flash_lock_block.c (flash_lock_block):

        * src/flash_unlock_block.c (flash_unlock_block):

        * src/flash_erase_block.c (flash_erase_block):

        * src/flash_query.c (flash_query):

        * src/flash_program_buf.c (flash_program_buf): Use .2ram sections

        for putting flash functions to RAM instead of the old method.

2003-05-02  Jani Monoses 

        * src/strata.c: Switch to using generic flash_query_dev.

        The previous cache related changes broke flash_query for

        Strata because in the query case the generic flash driver was not

        called to handle the caches but the internal handling was removed

        nevertheless.

2003-04-04  Jani Monoses 

        * src/strata.h:

        Use generic flash_dev.h for providing the FLASHWORD macro for

        different widths and device numbers.No reason to duplicate that

        here.This implicitely fixes the case when CYGNUM_FLASH_WIDTH is 16

        and CYGNUM_FLASH_DEVICES is 4.

2003-04-03  Jani Monoses 

        * src/flash_lock_block.c (flash_lock_block):

        * src/flash_unlock_block.c (flash_unlock_block):

        * src/flash_erase_block.c (flash_erase_block):

        * src/flash_query.c (flash_query):

        * src/flash_program_buf.c (flash_program_buf):

        Cache enabling and disabling are already handled by generic flash

2002-08-12  Mark Salter  

        * src/flash_unlock_block.c: Add synchronous strataflash support.

        * src/strata.h: Add comments regarding synchronous strataflash.

2002-04-30  Christoph Csebits  

        * src/flash_unlock_block.c: Getting the current block lock

        state for flashes in 8-Bit mode is now working correctly.

2002-04-16  Jonathan Larmour  

        * cdl/flash_strata.cdl: Invoke $(CC) with $(CFLAGS) to ensure the

        correct flags are passed.

2002-04-12  Gary Thomas  

        * src/strata.c: Clean up warnings.

2002-01-22  Mark Salter  

        * cdl/flash_strata.cdl: Add ".text" before "_end" markers in .s files.

2001-10-23  Hugo Tyson  

        * cdl/flash_strata.cdl: Provide an option so that RedBoot .ecm

        files can turn off the functionality of copying flash driver code

        to separate RAM for execution; it's not needed for RAM and ROMRAM

        startup, and for some platforms it is required to *not* copy thus.

2001-08-25  Gary Thomas  

        * src/flash_program_buf.c (flash_program_buf): Allow configuration

        specific code sequence for actual writing of data.  Define by the

        macro CYGHWR_FLASH_WRITE_ELEM.  Note: this is required on some

        hardware, like the Intel SA185, which handles flash writes in

        strange/obscure fashion.

2001-07-17 Jeroen Dobbelaere  

        * src/flash_query.c (flash_query): Query needs to be done on even

        addresses for byte-enabled strata flash

        * src/flash_program_buf.c (flash_program_buf): Fix of conversion of

        write buffer length (in bytes) to the length in 'flash_t' words.

2001-06-22  Hugo Tyson  

        * src/strata.c (flash_hwr_init): Need to refer to the query code

        as extern char flash_query[], flash_query_end[]; (with the []) or

        MIPS code gen assumes these are short offsets and linking fails.

        The generic flash code in io/flash already uses this idiom.

2001-06-22  Hugo Tyson  

        * src/strata.c (flash_hwr_init): Warnings reduced.  No arithmetic

        on void *.

2001-06-21  Hugo Tyson  

        * src/flash_program_buf.c (flash_program_buf): The buffered write

        code didn't jump out if there was a write error, nor verify the

        data by reading back.  This isn't consistent with the slow case,

        and made it take an age if the device is unhappy, and then report

        a bizarre error code.  Both issues fixed.

2001-06-21  Hugo Tyson  

        * src/strata.c (flash_hwr_init): If shrinking to fit, must also

        adjust the flash_info.blocks field, else unlock crashes trying to

        get status of all those extra blocks that we cannot actually see.

2001-06-11  Gary Thomas  

        * src/strata.c: Remove dependency on printf() via user functions.

2001-06-07  Hugo Tyson  

        * src/strata.c (flash_hwr_init): If we find a flash device that is

        larger than is possible given the memory map, shrink to fit.

        We know about the memory map from CYGNUM_FLASH_BASE_MASK (if

        defined); it tells us the stride from one device to another.

        This is to cope with installing, say, a 28F640 in a slot designed

        for a 28F320 because of supply issues - it all works fine so long

        as A22 is grounded.

2001-05-23  Jesper Skov  

        * cdl/flash_strata.cdl: Needs IO driver to copy functions to RAM.

2001-04-26  Gary Thomas  

        * src/strata.c: Be more careful when enable/flush/disable caches.

        * src/flash_erase_block.c (flash_erase_block): Boot block devices

        may require additional erase commands to erase entire 'block'.

2001-03-21  Hugo Tyson  

        * src/strata.h (FLASH_Write_Buffer): Do not define this if

        CYGOPT_FLASH_IS_NOT_ADVANCED is defined; Advanced (xxxJ3) flash is

        usual these days.  Also added documentation of the options that

        can be used to control this module.

        * src/flash_program_buf.c (flash_program_buf): Reduce warnings

        about unused variables if no FLASH_Write_Buffer command available.

2001-03-21  Gary Thomas  

        * src/flash_program_buf.c (flash_program_buf): Buffered write code

        fixups, only on platforms with it defined.

2001-03-17  Gary Thomas  

        * src/strata.h:

        * src/strata.c: Support buffered writes.

        * src/flash_program_buf.c: Use buffered writes if possible. This

        mode allows the chip to do parallelized writes which is much faster.

        It does require additional information, now provided by upper layer.

2001-02-15  Hugo Tyson  

        * src/flash_query.c (flash_query): Depending on whether

        CYGOPT_FLASH_IS_BOOTBLOCK (just a #define from the instantiator,

        not really a cdl_option) is set, do the full Read_Query or just

        acquire two codes for manufacturer and device type using Read_ID.

        * src/strata.c (flash_hwr_init): Again depending on whether

        CYGOPT_FLASH_IS_BOOTBLOCK, decode the device type into a size and

        so on, or use the full Read_Query data as before.

        * src/strata.h (FLASH_Read_ID): Undefine those commands which we

        do not use.  Conditionally define those that we use depending on

        CYGOPT_FLASH_IS_BOOTBLOCK.  Thus we should be able to deal with

        StrataFlash and BootBlock flash with the same code.

        * cdl/flash_strata.cdl: Do not implement (in the CDL sense)

        CYGHWR_IO_FLASH_BLOCK_LOCKING leave it up to the instantiating

        package instead.  Also move the build of the two objects that do

        locking and unlocking into a compenent which is only active if

        CYGHWR_IO_FLASH_BLOCK_LOCKING is indeed (requested to be)

        implemented somewhere.

2001-02-14  Hugo Tyson  

        * devs/flash/intel/strata/...: New package, generic strataFlash

        driver based on several others; a portion of its history

        follows...

        flash.h -> strata.h

        flash.c -> strata.c

2001-02-06  Hugo Tyson  

        * src/flash.h: Much more generic again.  Not yet separated into

        generic component and invocation header, but the structure is

        there.  Also included support for a mapping from the physical

        flash address we're thinking of to the virtual address we use to

        access it.  More documentation.  Generalization to 8,16,32 and

        64-bit access, made up from 8,16 or 32-bit devices.  Command and

        status macros modified to accommodate these options.

        * src/flash_lock_block.c (flash_lock_block):

        * src/flash_erase_block.c (flash_erase_block):

        * src/flash_query.c (flash_query):

        * src/flash_program_buf.c (flash_program_buf):

        All now acquire when possible the ROM address from the block

        address, and use the physical to virtual macro as needed.

        * src/flash_unlock_block.c (flash_unlock_block):

        The same changes, but a little more complex because of the need to

        clear-all then re-lock some semantics.  Shadow pointer to virtual

        address is used each time round the loop.

        * cdl/flash_strata.cdl: Add explicit dependencies on flash.h, for

        there were none - or they were ignored - for the specially built

        compilation units that get copied to RAM for execution.

2001-02-01  Hugo Tyson  

        * all: copied from the assabet flash driver.

2000-12-05  Jonathan Larmour  

        * src/assabet_flash.c (flash_code_overlaps): Define stext/etext

        as array types so no assumptions can be made by the compiler about

        location.

2000-10-24  Gary Thomas  

        * src/flash_unlock_block.c (flash_unlock_block):

        * src/flash_lock_block.c (flash_lock_block):

        * src/flash_program_buf.c (flash_program_buf):

        * src/flash_erase_block.c (flash_erase_block): Support up to 32M FLASH.

2000-09-10  Gary Thomas  

        * src/flash_unlock_block.c:

        * src/flash_lock_block.c: New file(s).

        * src/flash.h:

        * cdl/flash_assabet.cdl: Add region locking functions.

2000-08-29  Gary Thomas  

        * src/assabet_flash.c: Improve error decoding.

2000-08-24  Gary Thomas  

        * src/flash_query.c:

        * src/flash_erase_block.c:

        * src/flash.h: FLASH support for Intel SA1110 Assabet.

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