cfi_flash_amd: Add manufacturer-specific fixups ...

Run fixups based on the JEDEC manufacturer ID independent of the
command set ID.

This changes current behaviour: Previously, geometry reversal for AMD
chips were done based on the command set ID, while they are now done
based on the JEDEC manufacturer and device ID.

Also add fixup for top-boot Atmel chips.

based on U-Boot

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: introduce flash cmdset fixup ...

Move fixing up like geometry reversal into separate functions.
The geometry reversal fixup is now performed
by altering the qry structure directly, which makes the sector init
code slightly cleaner.

based on U-Boot

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: move reset command assigment to specific chipset init function ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: Introduce read and write accessors ...

Introduce flash_read{8,16,32,64) and flash_write{8,16,32,64} and use
them to access the flash memory. This makes it clearer when the flash
is actually being accessed; merely dereferencing a volatile pointer
looks just like any other kind of access.

based on U-Boot

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: update manufacturer id flash support ...

several first banks can contain 0x7f instead of actual ID

support as done in linux

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: synchronize command offsets with Linux CFI driver ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: add Atmel real protect flash support ...

based on U-Boot

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: move intel real protect flash support to cfi_flash_intel.c ...

let an empty function for amd as we will add later atmel real protect flash

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cfi_flash: Do not typedef struct flash_info ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

nor: don't use sector for ERASE_START ...

Similar to ac2d4d7, copy the behaviour
from Linux which does:

cfi_send_gen_cmd(0x80, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);

Notice the third parameter which is simply chip->start. Needed for some
SST-flashes.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

nor: Don't use the sector for the unlock sequence ...

Copy the behaviour from Linux which does:

cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL);
...

(Notice the third parameter which is simply chip->start).

Solves erase problems with SST flashes.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

cfi_flash: move include/cfi_flash.c next to driver ...

This file has no useful things for others than the driver,
so move it next to the driver and remove the corresponding
include from other files.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

cfi_flash: remove old driver and switch to new one ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

cfi_flash_new: generate flash erase dots in common function ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

cfi new: fix new disabling buffer support ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Move cfi flash drivers to drivers/nor as suggested by Nishanth Menon ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>