Added SPI flashing to nand-sata-install's SPI -> SATA, USB, NVMe option

packages/bsp/common/usr/sbin/nand-sata-install

@@ -10,6 +10,7 @@
 # Import:
 # DIR: path to u-boot directory
 # write_uboot_platform: function to write u-boot to a block device
+# write_uboot_platform_mtd: function to write u-boot to a mtd (eg. SPI flash) device
 
 [[ -f /usr/lib/u-boot/platform_install.sh ]] && source /usr/lib/u-boot/platform_install.sh
 
@@ -587,6 +588,20 @@ stop_running_services()
 	done
 }
 
+# show warning and write u-boot to SPI flash $1 = spi device name, $2 = u-boot files directory
+write_uboot_to_spi_flash()
+{
+	local MTD_BLK="/dev/$1"
+	local DIR="$2"
+	local MESSAGE="This script will update the bootloader on SPI Flash $MTD_BLK. Continue?\nIt will take up to a few minutes."
+	dialog --title "$title" --backtitle "$backtitle" --cr-wrap --colors --yesno " \Z1$(toilet -W -f ascii9 WARNING)\Zn\n$MESSAGE" 16 53
+	if [[ $? -eq 0 ]]; then
+		write_uboot_platform_mtd "$DIR" $MTD_BLK
+		update_bootscript
+		echo 'Done'
+	fi
+}
+
 main()
 {
 	export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
@@ -691,6 +706,15 @@ main()
 				show_warning "This script will erase your device $DISK_ROOT_PART. Continue?"
 				format_disk "$DISK_ROOT_PART"
 				create_armbian 'spi' "$DISK_ROOT_PART"
+
+				if [[ $(type -t write_uboot_platform_mtd) == function ]]; then
+					dialog --title "$title" --backtitle "$backtitle" --yesno \
+						"Do you want to write the bootloader to SPI flash?\n\nIt is required if you have not done it before or if you have some non-Armbian bootloader in SPI." 8 60
+
+					if [[ $? -eq 0 ]]; then
+						write_uboot_to_spi_flash $spicheck "$DIR"
+					fi
+				fi
 				;;
 			5)
 				show_warning 'This script will update the bootloader on SD/eMMC. Continue?'
@@ -711,11 +735,7 @@ main()
 				return
 				;;
 			7)
-				MTD_BLK="/dev/${spicheck}"
+				write_uboot_to_spi_flash $spicheck "$DIR"
-				show_warning "This script will update the bootloader on SPI Flash $MTD_BLK. Continue?"
-				write_uboot_platform_mtd "$DIR" $MTD_BLK
-				update_bootscript
-				echo 'Done'
 				return
 				;;
 		esac