Fix numerous bugs in the 8568 UEC support

Actually, fixed a large bug in the UEC for *all* platforms.
How did this ever work?

uec_init() did not follow the spec for eth_init(), and returned
0 on success.  Switch it to return the link like tsec_init()
(and 0 on error)

The immap for the 8568 was defined based on MPC8568, rather than
CONFIG_MPC8568

CONFIG_QE was off

CONFIG_ETHPRIME was set to "Freescale GETH".  Now is "FSL UEC0"

Fixed a comment about the ranges for CONFIG_ETHPRIME if TSEC_ENET is
enabled
Signed-off-by: NAndy Fleming <afleming@freescale.com>

drivers/qe/uec.c

@@ -1110,7 +1110,7 @@ static int uec_init(struct eth_device* dev, bd_t *bd)
 		if (dev->enetaddr[0] & 0x01) {
 			printf("%s: MacAddress is multcast address\n",
 				 __FUNCTION__);
-			return -EINVAL;
+			return 0;
 		}
 		uec_set_mac_address(uec, dev->enetaddr);
 		uec->the_first_run = 1;
@@ -1119,10 +1119,10 @@ static int uec_init(struct eth_device* dev, bd_t *bd)
 	err = uec_open(uec, COMM_DIR_RX_AND_TX);
 	if (err) {
 		printf("%s: cannot enable UEC device\n", dev->name);
-		return err;
+		return 0;
 	}
 
-	return 0;
+	return uec->mii_info->link;
 }
 
 static void uec_halt(struct eth_device* dev)

include/asm-ppc/immap_85xx.h

@@ -1596,7 +1596,7 @@ typedef struct ccsr_gur {
 	uint	svr;		/* 0xe00a4 - System version register */
 	char	res10a[8];
 	uint	rstcr;		/* 0xe00b0 - Reset control register */
-#ifdef MPC8568
+#ifdef CONFIG_MPC8568
 	char	res10b[76];
 	par_io_t qe_par_io[7];  /* 0xe0100 - 0xe01bf */
 	char	res10c[3136];

include/configs/MPC8568MDS.h

@@ -35,7 +35,7 @@
 
 #define CONFIG_PCI
 #define CONFIG_TSEC_ENET 		/* tsec ethernet support */
-#undef CONFIG_QE			/* Enable QE */
+#define CONFIG_QE			/* Enable QE */
 #define CONFIG_ENV_OVERWRITE
 #define CONFIG_SPD_EEPROM		/* Use SPD EEPROM for DDR setup*/
 #define CONFIG_DDR_DLL			/* possible DLL fix needed */
@@ -348,7 +348,7 @@ extern unsigned long get_clock_freq(void);
  */
 #define CONFIG_UEC_ETH
 #ifndef CONFIG_TSEC_ENET
-#define CONFIG_ETHPRIME         "Freescale GETH"
+#define CONFIG_ETHPRIME         "FSL UEC0"
 #endif
 #define CONFIG_PHY_MODE_NEED_CHANGE
 #define CONFIG_eTSEC_MDIO_BUS
@@ -409,7 +409,7 @@ extern unsigned long get_clock_freq(void);
 #define TSEC1_FLAGS		TSEC_GIGABIT
 #define TSEC2_FLAGS		TSEC_GIGABIT
 
-/* Options are: eTSEC[0-3] */
+/* Options are: eTSEC[0-1] */
 #define CONFIG_ETHPRIME		"eTSEC0"
 
 #endif	/* CONFIG_TSEC_ENET */