olpc: load firmware file for wlan, default to SD card bootup

target/linux/config/Config.in.misc

@@ -21,6 +21,7 @@ config ADK_LINUX_KERNEL_FIRMWARE_IN_KERNEL
 config ADK_LINUX_KERNEL_EXTRA_FIRMWARE
 	string
 	default "rtl8168e-2.fw" if ADK_LINUX_KERNEL_R8169 && ADK_LINUX_KERNEL_ROOT_NFS
+	default "usb8388.bin" if ADK_TARGET_SYSTEM_OLPC_XO_1
 	default ""
 
 config ADK_LINUX_KERNEL_FW_LOADER_USER_HELPER

target/x86/olpc-xo-1/olpc.fth

@@ -1,6 +1,6 @@
 \ OLPC boot script
 visible
-" rw root=/dev/sda1 loglevel=9 fbcon=font:SUN12x22 console=tty0 iommu=off" expand$ to boot-file
+" rw root=/dev/mmcblk0p1 loglevel=9 fbcon=font:SUN12x22 console=tty0 iommu=off" expand$ to boot-file
 " last:\boot\kernel" expand$ to boot-device
 unfreeze
 boot