Subversion Repositories openrisc_me

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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