Tegra: Plutux: Enable NAND and boot script support

Boot script support brings Plutux in line with other Tegra boards. In
order to enable booting a Linux kernel with initial ramdisk, also add
support for the new FIT image type.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>

include/configs/plutux.h

@@ -42,8 +42,7 @@
 #define CONFIG_SYS_NS16550_COM1		NV_PA_APB_UARTD_BASE
 
 #define CONFIG_BOARD_EARLY_INIT_F
-
-#define CONFIG_ENV_IS_NOWHERE
+#define CONFIG_BOARD_LATE_INIT
 
 /* SD/MMC */
 #define CONFIG_MMC
@@ -51,6 +50,15 @@
 #define CONFIG_TEGRA_MMC
 #define CONFIG_CMD_MMC
 
+/* NAND support */
+#define CONFIG_CMD_NAND
+#define CONFIG_TEGRA_NAND
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+/* Environment in NAND, aligned to start of last sector */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		(SZ_512M - SZ_128K) /* 128K sectors */
+
 /* USB host support */
 #define CONFIG_USB_EHCI
 #define CONFIG_USB_EHCI_TEGRA
@@ -65,13 +73,9 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DHCP
 
+/* support the new (FDT-based) image format */
 #define CONFIG_FIT
 
-#define CONFIG_BOOTCOMMAND				\
-	"mmc rescan;"					\
-	"ext2load mmc 0 0x17000000 /boot/uImage;"	\
-	"bootm"
-
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */