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>
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>
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>
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>
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>
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>
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>
add missing error handling.
Output warning when assuming maximum flash size in the
family when failing to read.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
for non_cfi cfi chips free() was invoked on rodata.
The mystery is why this bug has survived for so long.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
sizeof() is a bit less scary than seing assumption
about size of type, no bug as such.
Use NULL instead of 0 for pointers. More obvious that
it is a pointer from code inspection.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
Someone called David Carne popped up on IRC and offered a fix (as he's not
on this list so can;t post here). I am just passing it on. (thanx David)
10:54 < davidc__> Basically; the Numonyx M29W160ET has an incorrect CFI PRI
block; it describes the erase blocks backwards
10:54 < davidc__> the linked patch has a fixup for that part [really trivial]:
The patch improves flash erase for STR9x in case of a full bank erase.
Then the chip erase command is used instead which improves speed significantly.
Also I think it might help if e.g. STR912 enters some state where flash banks are locked, and a chip erase command is the key for unlocking the flash.
This flash driver works on more than just two chips.
(Though it does need work still, e.g. to protect more than 64K.
(On non-'3748-A0 chips where errata allow that.))
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
For the above targets the exit_point is
optional when used with run_algorithm, so remove it.
This makes updating the algorithm less error prone.
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
This adds a nand driver support for the nuc910 target.
Note that ECC is not currently supported by this driver, although
it is supported by the peripheral.
Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>
Rolf Meeser
Antonio Borneo
Øyvind Harboe
Spencer Oliver
Freddie Chopin
Flemming Futtrup
Wookey
Fredrik Hederstierna
David Brownell