The i.MX6 uses the same GPMI NAND controller as i.MX23/28 do. This adds
i.MX6 support to the driver.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As the apbh dma engine is also found on i.MX6 move the header file
out of MXS specific directories.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
MXS specific devices have some common infrastructure in the kernel
known as STMP devices. We have the same in barebox, but with a
mxs_ prefix instead of a stmp_ prefix. As some STMP devices are
also found on i.MX6 move the common infrastructure out of MXS
specific files and use the stmp_ prefix.
This is done in preparation for i.MX6 NAND support.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This updates the NAND stuff to Linux-3.11-rc1. It is synchronized
as best as we can get:
- locks removed
- The splitting in different files we had to better support different
features has been dropped. Instead this is now done mostly with the
use of __maybe_unused
Some barebox adjustments are forward ported, like:
- Allow partial page writes
- Optionally allow to erase bad blocks
- check for all_ff before writing a page
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This introduces the ecc stength fields in the structures and fills
them in, but leaves them unused right now.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows us to have some NAND specific stuff during registration,
like for example adding NAND specific device parameters.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It is not the chip, but this controller which cannot do subpage writes.
So, make sure we add the flag at the proper place, so it doesn't get
overwritten by flash detection anymore.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It could happen (1 out of 100 times) that NAND did not start up
correctly after warm rebooting, so barebox could not find its
environment or DMA timed out due to a stalled BCH. When resetting BCH
together with GPMI, the issue could not be observed anymore. We probably
need the consistent state already before sending commands to NAND.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on the U-Boot version. Changed to kernel style register layout, added
MX23 support (WIP!), made MMU aware and adapted to barebox.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Sascha Hauer
Alexander Shiyan
Wolfram Sang
Jean-Christophe PLAGNIOL-VILLARD