mtd: m25p80: Disable 4KiB erase for s25sl032p, s25sl064p
authorMarek Vasut <marex@denx.de>
Tue, 4 Sep 2012 03:31:36 +0000 (05:31 +0200)
committerDavid Woodhouse <David.Woodhouse@intel.com>
Sat, 29 Sep 2012 14:40:19 +0000 (15:40 +0100)
commitb277f77e5d6cac15bedde341b571a81fb0db2260
tree3f7368b85aeea7aa05e6918ec1f89c9cf26881de
parent5fe42d5bf2deac62bf2a532b30deacc007805b91
mtd: m25p80: Disable 4KiB erase for s25sl032p, s25sl064p

Quoting from the datasheet for S25FL064P, rev. 05, Nov 18 2011, ยง 9.17:

"A 64 kB[sic] sector erase (D8h) command issued on 4 kB or 8 kB erase
sectors will erase all sectors in the specified 64 kB region. However,
please note that a 4 kB sector erase (20h) or 8 kB sector erase (40h)
command will not work on a 64 kB sector."

Referring further to Table 8.1 and Table 8.2, it is clearly seen
that most of the sectors are 64KiB; therefore disable this 4KiB
erase support since it's valid only on first/last sectors.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/mtd/devices/m25p80.c