Always probing pmecc in the generic nand controller probe function and
bailing out if pmecc is missing, prevents the driver to be usable for
SoCs which do not have a pmecc hardware ecc engine like older sam9 SoCs,
for example at91sam9g20. Tested on sam9x60 that the call, which the
comment was moved to, is sufficient to probe the pmecc.
Signed-off-by: Alexander Dahl <ada@thorsis.com>
These removed definitions were specific to some sam9 SoCs, but not
generic over all at91 SoCs. The correct SoC specific definitions for
ATMEL_BASE_PMECC are spread over different header files in
arch/arm/mach-at91/include/mach directory.
Fixes a build error on a custon board based on SAMA5D2:
Building current source for 73 boards (16 threads, 1 job per thread)
arm: + vera2
+drivers/mtd/nand/raw/atmel/pmecc.c:819: warning: "ATMEL_BASE_PMECC" redefined
+ 819 | #define ATMEL_BASE_PMECC 0xffffe000
+ |
+In file included from include/configs/vera2.h:11,
+ from include/config.h:3,
+ from include/linux/mtd/rawnand.h:16,
+ from drivers/mtd/nand/raw/atmel/pmecc.c:44:
+include/asm/arch/sama5d2.h:171: note: this is the location of the previous definition
+ 171 | #define ATMEL_BASE_PMECC (ATMEL_BASE_HSMC + 0x70)
+drivers/mtd/nand/raw/atmel/pmecc.c:820: warning: "ATMEL_BASE_PMERRLOC" redefined
+ 820 | #define ATMEL_BASE_PMERRLOC 0xffffe600
+include/asm/arch/sama5d2.h:172: note: this is the location of the previous definition
+ 172 | #define ATMEL_BASE_PMERRLOC (ATMEL_BASE_HSMC + 0x500)
Fixes: a490e1b7c0 ("nand: atmel: Add pmecc driver")
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Add driver for atmel pmecc. This implementation is ported from
Linux. The reference taken is linux-5.4-at91.
Signed-off-by: Balamanikandan Gunasundar <balamanikandan.gunasundar@microchip.com>
