powerpc/p2041rdb: update cpld reset command according to CPLD 2.0

CPLD 2.0 provides a new register which bit[0] is set to '1' will reset
board with initializing the CPLD registers to default values. And add
bit[6] of register at offset 0x5 to use to enable flash bank selection.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/p2041rdb/cpld.h b/board/freescale/p2041rdb/cpld.h
index 3b24cb0..dcdb410 100644
--- a/board/freescale/p2041rdb/cpld.h
+++ b/board/freescale/p2041rdb/cpld.h
@@ -29,6 +29,7 @@
 	u8 fbank_sel;		/* 0xb - Flash bank selection */
 	u8 serdes_mux;		/* 0xc - Multiplexed pin Select Register */
 	u8 sw[1];		/* 0xd - SW2 Status */
+	u8 system_rst_default;	/* 0xe - system reset to default register */
 } __attribute__ ((packed)) cpld_data_t;
 
 #define SERDES_MUX_LANE_6_MASK	0x2
@@ -39,6 +40,7 @@
 #define SERDES_MUX_LANE_C_SHIFT	2
 #define SERDES_MUX_LANE_D_MASK	0x8
 #define SERDES_MUX_LANE_D_SHIFT	3
+#define CPLD_SWITCH_BANK_ENABLE	0x40
 
 /* Pointer to the CPLD register set */
 #define cpld ((cpld_data_t *)CPLD_BASE)