mtd: cfi: Allow per-mapping CFI device endianness
This patch allows each CFI device map to use its own endianness. The
globally defined CFI endianness (CONFIG_MTD_CFI_NOSWAP,
CONFIG_MTD_CFI_BE_BYTE_SWAP or CONFIG_MTD_CFI_LE_BYTE_SWAP) becomes the
default value which can be overridden by a driver for a particular device.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index d249254..d5d2ec6 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -354,10 +354,10 @@
onecmd = cmd;
break;
case 2:
- onecmd = cpu_to_cfi16(cmd);
+ onecmd = cpu_to_cfi16(map, cmd);
break;
case 4:
- onecmd = cpu_to_cfi32(cmd);
+ onecmd = cpu_to_cfi32(map, cmd);
break;
}
@@ -437,10 +437,10 @@
case 1:
break;
case 2:
- res = cfi16_to_cpu(res);
+ res = cfi16_to_cpu(map, res);
break;
case 4:
- res = cfi32_to_cpu(res);
+ res = cfi32_to_cpu(map, res);
break;
default: BUG();
}
@@ -480,12 +480,12 @@
if (map_bankwidth_is_1(map)) {
return val.x[0];
} else if (map_bankwidth_is_2(map)) {
- return cfi16_to_cpu(val.x[0]);
+ return cfi16_to_cpu(map, val.x[0]);
} else {
/* No point in a 64-bit byteswap since that would just be
swapping the responses from different chips, and we are
only interested in one chip (a representative sample) */
- return cfi32_to_cpu(val.x[0]);
+ return cfi32_to_cpu(map, val.x[0]);
}
}
@@ -496,12 +496,12 @@
if (map_bankwidth_is_1(map)) {
return val.x[0] & 0xff;
} else if (map_bankwidth_is_2(map)) {
- return cfi16_to_cpu(val.x[0]);
+ return cfi16_to_cpu(map, val.x[0]);
} else {
/* No point in a 64-bit byteswap since that would just be
swapping the responses from different chips, and we are
only interested in one chip (a representative sample) */
- return cfi32_to_cpu(val.x[0]);
+ return cfi32_to_cpu(map, val.x[0]);
}
}