Adds support for Numonyx's N25Q128 SPI flash. These devices
are used on (among others) Avnet Spartan-6 LX9 micro-evaluation
boards. Tested with "sf" commands and CONFIG_ENV_IS_IN_SPI_FLASH.
Signed-off-by: Stephan Linz <linz@li-pro.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
There are more than the M25Pxx serial flashs that can be
used with the stmicro driver, for example: the M25PXxx or
N25Qxx serie. All these chips have burned in the original
stmicro manufacture id 0x20 together with a standard
two-byte signature.
In preperation to support all these chips the stmicro driver
have to decode the full two-byte signature.
Signed-off-by: Stephan Linz <linz@li-pro.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Note: because 4-byte addressing is not supported yet,
at the moment only the first 16MiB of the device are available.
Signed-off-by: Jérôme Carretero <cJ@zougloub.eu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Analysis of the flash drivers shows that they all use 0x20 if the erase
size is 4KiB, or 0xd8 if it's larger. So with this info in hand, we can
unify all the erase functionality in one place.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
I imagine much of these constants are due to copy & pasting previous
drivers rather than an actual reflection of the hardware layout. At
any rate, inline the info that we don't care about externally as it
shrinks things nicely.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
In an effort to unify the spi flash drivers further, drop all the
unused and/or duplicate command defines.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that the common spi_flash structure tracks all the info that these
drivers need, kill off their local state indirection and use just what
the common code provides.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Once we add a new page_size field for write lengths, we can unify the
write methods for most of the spi flash drivers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This patch adds a new member to struct spi_flash (u16 sector_size)
and updates the spi flash drivers to start populating it.
This parameter can be used by spi flash commands that need to round
up units of operation to the flash's sector_size.
Having this number in one place also allows duplicated code to be
further collapsed into one common location (such as erase parameter
and the detected message).
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
All of the spi flash drivers implement the status register polling for
detecting the device ready state, so unify them all in a new helper
function -- spi_flash_wait_ready.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
At the moment, the default SPI flash subsystem is quite terse. Errors and
successes both result in a generic message. So move the useful errors and
useful successes to printf output by default.
While we're here, also convert the messages to use print_size().
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Some old STMicro parts do not support JEDEC ID (0x9f). This patch
uses RES (0xab) to get Electronic ID and translates it to JEDEC ID.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Mike Frysinger <vapier@gentoo.org>
I can't find anywhere in the datasheet that says the status register needs
3 dummy bytes sent to it before being able to read back the first real
result. Tests on a Blackfin board show that after writing the opcode, the
status register starts coming back immediately. So only write out the
read status register opcode before polling the result.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Jason McMullan <mcmullan@netapp.com>
CC: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
The common SPI flash code reads the idcode and passes it down to the SPI
flash driver, so there is no need to read it again ourselves.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
CC: Jason McMullan <mcmullan@netapp.com>
CC: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
Higher spi flash layers expect to be given back a pointer that was
malloced so that it can free the result, but the lower layers return
a pointer that is in the middle of the malloced memory. Reorder the
members of the lower spi structures so that things work out.
Signed-off-by: Brad Bozarth <bflinux@yumbrad.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
The stmicro_wait_ready() func tries to show the actual opcode that was sent
to the device, but instead it displays the array pointer. Fix it to pull
out the opcode from the start of the array.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
