[ARM] TI DaVinci support, hopefully final

Add support for the following DaVinci boards:
- DV_EVM
- SCHMOOGIE
- SONATA

Changes:

- Split into separate board directories
- Removed changes to MTD_DEBUG (or whatever it's called)
- New CONFIG_CMD party line followed
- Some cosmetic fixes, cleanup etc.
- Patches against the latest U-Boot tree as of now.
- Fixed CONFIG_CMD_NET in net files.
- Fixed CONFIG_CMD_EEPROM for schmoogie.
- Made sure it compiles and works (forceenv() link problem) on SCHMOOGIE and
   DV_EVM. Can't check if it works on SONATA, don't have a board any more,
   but it at least compiles.

Here is an excerpt from session log on SCHMOOGIE...

U-Boot 1.2.0-g6c33c785-dirty (Aug  7 2007 - 13:07:17)

DRAM:  128 MB
NAND:  128 MiB
In:    serial
Out:   serial
Err:   serial
ARM Clock : 297MHz
DDR Clock : 162MHz
ETH PHY   : DP83848 @ 0x01
U-Boot > iprobe
Valid chip addresses: 1B 38 3A 3D 3F 50 5D 6F
U-Boot > ping 192.168.253.10
host 192.168.253.10 is alive
U-Boot >

Signed-off-by: Sergey Kubushyn <ksi@koi8.net>
Acked-by: Dirk Behme <dirk.behme@gmail.com>
Acked-by: Zach Sadecki <Zach.Sadecki@ripcode.com>
Acked-by: Stefan Roese <sr@denx.de>
diff --git a/lib_arm/board.c b/lib_arm/board.c
index 8f4e19b..d37e5da 100644
--- a/lib_arm/board.c
+++ b/lib_arm/board.c
@@ -364,6 +364,13 @@
 	enable_interrupts ();
 
 	/* Perform network card initialisation if necessary */
+#ifdef CONFIG_DRIVER_TI_EMAC
+extern void dm644x_eth_set_mac_addr (const u_int8_t *addr);
+	if (getenv ("ethaddr")) {
+		dm644x_eth_set_mac_addr(gd->bd->bi_enetaddr);
+	}
+#endif
+
 #ifdef CONFIG_DRIVER_CS8900
 	cs8900_get_enetaddr (gd->bd->bi_enetaddr);
 #endif