powerpc/85xx: minor clean-ups to the P2020DS board header file

Remove some unused macros and remove all #undef macros.

The RTL8139 network adapter is not shipped with the board nor commonly
used, so don't define it by default.  The E1000 is still defined.

Add 57,600 baud as an option.  For some reason, this baud rate is missing
from many boards.

Signed-off-by: Timur Tabi <timur@freescale.com>

include/configs/P2020DS.h

@@ -128,7 +128,6 @@
 #else
 #define CONFIG_FSL_DDR3		1
 #endif
-#undef CONFIG_FSL_DDR_INTERACTIVE
 
 /* ECC will be enabled based on perf_mode environment variable */
 /* #define	CONFIG_DDR_ECC */
@@ -207,8 +206,6 @@
  *
  */
 
-#undef CONFIG_CLOCKS_IN_MHZ
-
 /*
  * Memory map
  *
@@ -251,7 +248,6 @@
 
 #define CONFIG_SYS_MAX_FLASH_BANKS	2		/* number of banks */
 #define CONFIG_SYS_MAX_FLASH_SECT	1024		/* sectors per device */
-#undef	CONFIG_SYS_FLASH_CHECKSUM
 #define CONFIG_SYS_FLASH_ERASE_TOUT	60000		/* Flash Erase Timeout (ms) */
 #define CONFIG_SYS_FLASH_WRITE_TOUT	500		/* Flash Write Timeout (ms) */
 
@@ -373,7 +369,7 @@
 #define CONFIG_SYS_NS16550_CLK		get_bus_freq(0)
 
 #define CONFIG_SYS_BAUDRATE_TABLE	\
-	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400,115200}
+	{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200}
 
 #define CONFIG_SYS_NS16550_COM1	(CONFIG_SYS_CCSRBAR+0x4500)
 #define CONFIG_SYS_NS16550_COM2	(CONFIG_SYS_CCSRBAR+0x4600)
@@ -391,7 +387,6 @@
 /* I2C */
 #define CONFIG_FSL_I2C		/* Use FSL common I2C driver */
 #define CONFIG_HARD_I2C		/* I2C with hardware support */
-#undef	CONFIG_SOFT_I2C		/* I2C bit-banged */
 #define CONFIG_I2C_MULTI_BUS
 #define CONFIG_SYS_I2C_SPEED		400000	/* I2C speed and slave address */
 #define CONFIG_SYS_I2C_EEPROM_ADDR	0x57
@@ -526,17 +521,6 @@
 #define CONFIG_SYS_SRIO2_MEM_SIZE	0x20000000	/* 512M */
 
 #define CONFIG_PCI_PNP			/* do pci plug-and-play */
-
-#undef CONFIG_EEPRO100
-#undef CONFIG_TULIP
-#define CONFIG_RTL8139
-
-#ifndef CONFIG_PCI_PNP
-	#define PCI_ENET0_IOADDR	CONFIG_SYS_PCIE3_IO_BUS
-	#define PCI_ENET0_MEMADDR	CONFIG_SYS_PCIE3_IO_BUS
-	#define PCI_IDSEL_NUMBER	0x11	/* IDSEL = AD11 */
-#endif
-
 #define CONFIG_PCI_SCAN_SHOW		/* show pci devices on startup */
 #define CONFIG_DOS_PARTITION
 #define CONFIG_SCSI_AHCI
@@ -563,7 +547,6 @@
 #define CONFIG_TSEC3	1
 #define CONFIG_TSEC3_NAME	"eTSEC3"
 
-#define CONFIG_PIXIS_SGMII_CMD
 #define CONFIG_FSL_SGMII_RISER	1
 #define SGMII_RISER_PHY_OFFSET	0x1b
 
@@ -655,8 +638,6 @@
 #endif
 #endif
 
-#undef CONFIG_WATCHDOG			/* watchdog disabled */
-
 /*
  * SDHC/MMC
  */
@@ -732,7 +713,6 @@
 #define CONFIG_LOADADDR		1000000
 
 #define CONFIG_BOOTDELAY 10	/* -1 disables auto-boot */
-#undef  CONFIG_BOOTARGS		/* the boot command will set bootargs */
 
 #define CONFIG_BAUDRATE	115200