vexpress64: juno: add default NOR flash boot

This modifies the vexpress64 Juno configuration so that
it will by default load and boot a kernel and a device tree
from the images stored in the NOR flash. When we are
at it, also define the proper command line for the Juno and
indicate that the USB stick (/dev/sda1) is the default
root file system.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

include/configs/vexpress_aemv8a.h

@@ -198,7 +198,34 @@
 #define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
 
 /* Initial environment variables */
-#ifdef CONFIG_TARGET_VEXPRESS64_BASE_FVP
+#ifdef CONFIG_TARGET_VEXPRESS64_JUNO
+/*
+ * Defines where the kernel and FDT exist in NOR flash and where it will
+ * be copied into DRAM
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS	\
+				"kernel_name=Image\0"	\
+				"kernel_addr=0x80000000\0" \
+				"fdt_name=juno\0" \
+				"fdt_addr=0x83000000\0" \
+				"fdt_high=0xffffffffffffffff\0" \
+				"initrd_high=0xffffffffffffffff\0" \
+
+/* Assume we boot with root on the first partition of a USB stick */
+#define CONFIG_BOOTARGS		"console=ttyAMA0,115200n8 " \
+				"root=/dev/sda1 rw " \
+				"earlyprintk=pl011,0x7ff80000 debug user_debug=31 "\
+				"loglevel=9"
+
+/* Copy the kernel and FDT to DRAM memory and boot */
+#define CONFIG_BOOTCOMMAND	"afs load ${kernel_name} ${kernel_addr} ; " \
+				"afs load  ${fdt_name} ${fdt_addr} ; " \
+				"fdt addr ${fdt_addr}; fdt resize; " \
+				"booti ${kernel_addr} - ${fdt_addr}"
+
+#define CONFIG_BOOTDELAY		1
+
+#elif CONFIG_TARGET_VEXPRESS64_BASE_FVP
 #define CONFIG_EXTRA_ENV_SETTINGS	\
 				"kernel_name=uImage\0"		\
 				"kernel_addr=0x80000000\0"	\
@@ -246,6 +273,7 @@
 #define CONFIG_SYS_NO_FLASH
 #else
 #define CONFIG_CMD_FLASH
+#define CONFIG_CMD_ARMFLASH
 #define CONFIG_SYS_FLASH_CFI		1
 #define CONFIG_FLASH_CFI_DRIVER		1
 #define CONFIG_SYS_FLASH_BASE		0x08000000