DataFlash: AT45DB021 fix and AT45DB081 support

Fix for page size of AT45DB021. Also adding bigger AT45DB081
which comes with some newer boards.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>

drivers/mtd/dataflash.c

@@ -56,7 +56,7 @@ int AT91F_DataflashInit (void)
 		switch (dfcode) {
 		case AT45DB021:
 			dataflash_info[i].Device.pages_number = 1024;
-			dataflash_info[i].Device.pages_size = 263;
+			dataflash_info[i].Device.pages_size = 264;
 			dataflash_info[i].Device.page_offset = 9;
 			dataflash_info[i].Device.byte_mask = 0x300;
 			dataflash_info[i].Device.cs = cs[i].cs;
@@ -65,6 +65,19 @@ int AT91F_DataflashInit (void)
 			dataflash_info[i].id = dfcode;
 			found[i] += dfcode;;
 			break;
+
+		case AT45DB081:
+			dataflash_info[i].Device.pages_number = 4096;
+			dataflash_info[i].Device.pages_size = 264;
+			dataflash_info[i].Device.page_offset = 9;
+			dataflash_info[i].Device.byte_mask = 0x300;
+			dataflash_info[i].Device.cs = cs[i].cs;
+			dataflash_info[i].Desc.DataFlash_state = IDLE;
+			dataflash_info[i].logical_address = cs[i].addr;
+			dataflash_info[i].id = dfcode;
+			found[i] += dfcode;;
+			break;
+
 		case AT45DB161:
 			dataflash_info[i].Device.pages_number = 4096;
 			dataflash_info[i].Device.pages_size = 528;

include/dataflash.h

@@ -135,9 +135,9 @@ struct dataflash_addr {
 	int cs;
 };
 /*-------------------------------------------------------------------------------------------------*/
-
 #define AT45DB161	0x2c
 #define AT45DB021	0x14
+#define AT45DB081	0x24
 #define AT45DB321	0x34
 #define AT45DB642	0x3c
 #define AT45DB128	0x10