Unify pixis_reset altbank across board families

Basically, refactor the CFG_PIXIS_VBOOT_MASK values
into the separate board config files.

Signed-off-by: Jason Jin <Jason.jin@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>

board/freescale/common/pixis.c

@@ -207,13 +207,16 @@ void read_from_px_regs_altbank(int set)
 	out8(PIXIS_BASE + PIXIS_VCFGEN1, tmp);
 }
 
+#ifndef CFG_PIXIS_VBOOT_MASK
+#define CFG_PIXIS_VBOOT_MASK	0x40
+#endif
 
 void set_altbank(void)
 {
 	u8 tmp;
 
 	tmp = in8(PIXIS_BASE + PIXIS_VBOOT);
-	tmp ^= 0x40;
+	tmp ^= CFG_PIXIS_VBOOT_MASK;
 
 	out8(PIXIS_BASE + PIXIS_VBOOT, tmp);
 }

include/configs/MPC8544DS.h

@@ -198,6 +198,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define PIXIS_VSPEED1		0x18	/* VELA VSpeed 1 */
 #define PIXIS_VCLKH		0x19	/* VELA VCLKH register */
 #define PIXIS_VCLKL		0x1A	/* VELA VCLKL register */
+#define CFG_PIXIS_VBOOT_MASK	0x40    /* Reset altbank mask*/
 
 
 /* define to use L1 as initial stack */

include/configs/MPC8641HPCN.h

@@ -201,6 +201,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define PIXIS_VSPEED1		0x18	/* VELA VSpeed 1 */
 #define PIXIS_VCLKH		0x19	/* VELA VCLKH register */
 #define PIXIS_VCLKL		0x1A	/* VELA VCLKL register */
+#define CFG_PIXIS_VBOOT_MASK	0x40    /* Reset altbank mask*/
 
 #define CFG_MAX_FLASH_BANKS	2		/* number of banks */
 #define CFG_MAX_FLASH_SECT	128		/* sectors per device */