diff --git a/design/top.vhd b/design/top.vhd
index e472806..655fe4e 100644
--- a/design/top.vhd
+++ b/design/top.vhd
@@ -10,37 +10,45 @@ use ip.mor1kx_pkg.all;
 
 entity top is
 	port(
-		clk_hw       : in    std_logic;
-		rst_hw       : in    std_logic;
+		clk_hw        : in    std_logic;
+		rst_hw        : in    std_logic;
 
 		-- GPIO
-		GPIOA        : inout std_logic_vector(wishbone_data_width - 1 downto 0);
+		GPIOA         : inout std_logic_vector(wishbone_data_width - 1 downto 0);
 
 		-- JINN
-		jinn_uart_rx : in    std_logic;
-		jinn_uart_tx : out   std_logic;
+		jinn_uart_rx  : in    std_logic;
+		jinn_uart_tx  : out   std_logic;
 
 		-- UART
-		uart_rx      : in    std_logic;
-		uart_tx      : out   std_logic;
+		uart_rx       : in    std_logic;
+		uart_tx       : out   std_logic;
 
 		-- DDR3 RAM
-		mem_a        : out   std_logic_vector(12 downto 0); -- memory.mem_a
-		mem_ba       : out   std_logic_vector(2 downto 0); -- .mem_ba
-		mem_ck       : out   std_logic_vector(0 downto 0); -- .mem_ck
-		mem_ck_n     : out   std_logic_vector(0 downto 0); -- .mem_ck_n
-		mem_cke      : out   std_logic_vector(0 downto 0); -- .mem_cke
-		mem_cs_n     : out   std_logic_vector(0 downto 0); -- .mem_cs_n
-		mem_dm       : out   std_logic_vector(1 downto 0); -- .mem_dm
-		mem_ras_n    : out   std_logic_vector(0 downto 0); -- .mem_ras_n
-		mem_cas_n    : out   std_logic_vector(0 downto 0); -- .mem_cas_n
-		mem_we_n     : out   std_logic_vector(0 downto 0); -- .mem_we_n
-		mem_reset_n  : out   std_logic; -- .mem_reset_n
-		mem_dq       : inout std_logic_vector(15 downto 0) := (others => '0'); -- .mem_dq
-		mem_dqs      : inout std_logic_vector(1 downto 0)  := (others => '0'); -- .mem_dqs
-		mem_dqs_n    : inout std_logic_vector(1 downto 0)  := (others => '0'); -- .mem_dqs_n
-		mem_odt      : out   std_logic_vector(0 downto 0); -- .mem_odt
-		oct_rzqin    : in    std_logic  -- oct.rzqin
+		mem_a         : out   std_logic_vector(12 downto 0); -- memory.mem_a
+		mem_ba        : out   std_logic_vector(2 downto 0); -- .mem_ba
+		mem_ck        : out   std_logic_vector(0 downto 0); -- .mem_ck
+		mem_ck_n      : out   std_logic_vector(0 downto 0); -- .mem_ck_n
+		mem_cke       : out   std_logic_vector(0 downto 0); -- .mem_cke
+		mem_cs_n      : out   std_logic_vector(0 downto 0); -- .mem_cs_n
+		mem_dm        : out   std_logic_vector(1 downto 0); -- .mem_dm
+		mem_ras_n     : out   std_logic_vector(0 downto 0); -- .mem_ras_n
+		mem_cas_n     : out   std_logic_vector(0 downto 0); -- .mem_cas_n
+		mem_we_n      : out   std_logic_vector(0 downto 0); -- .mem_we_n
+		mem_reset_n   : out   std_logic; -- .mem_reset_n
+		mem_dq        : inout std_logic_vector(15 downto 0) := (others => '0'); -- .mem_dq
+		mem_dqs       : inout std_logic_vector(1 downto 0)  := (others => '0'); -- .mem_dqs
+		mem_dqs_n     : inout std_logic_vector(1 downto 0)  := (others => '0'); -- .mem_dqs_n
+		mem_odt       : out   std_logic_vector(0 downto 0); -- .mem_odt
+		oct_rzqin     : in    std_logic; -- oct.rzqin
+
+		-- SPI Flash Hardware Signals
+		flash_si      : out   std_logic; -- spi serial in
+		flash_so      : in    std_logic; -- spi serial out
+		flash_sck     : out   std_logic; -- spi clock
+		flash_reset_n : out   std_logic; -- spi hard reset
+		flash_cs_n    : out   std_logic; -- spi chip select
+		flash_wp_n    : out   std_logic -- spi write protect
 	);
 
 end entity top;
@@ -50,13 +58,14 @@ architecture RTL of top is
 	constant F_CPU      : natural := 50000000;
 
 	-- WB config
-	constant masters             : natural := 3;
-	constant slaves              : natural := 2;
-	constant INTERCON_ID_SRAM    : natural := 0;
-	constant INTERCON_ID_DDR3    : natural := 1;
-	constant INTERCON_ID_GPIO    : natural := 2;
-	constant INTERCON_ID_UART    : natural := 3;
-	constant INTERCON_ID_NS16550 : natural := 4;
+	constant masters           : natural := 3;
+	constant slaves            : natural := 3;
+	constant INTERCON_ID_SRAM  : natural := 0;
+	constant INTERCON_ID_DDR3  : natural := 1;
+	constant INTERCON_ID_FLASH : natural := 2;
+	--	constant INTERCON_ID_GPIO    : natural := 2;
+	--	constant INTERCON_ID_UART    : natural := 3;
+	--	constant INTERCON_ID_NS16550 : natural := 4;
 
 	constant in_simulation : boolean := false
 	--pragma synthesis_off
@@ -297,6 +306,22 @@ begin
 		end if;
 	end process wb2avl;
 
+	-- Non Volatile Memory
+	flashrom_wb_inst : entity work.flashrom_wb
+		port map(
+			clk         => clk,
+			rst         => rst,
+			clr         => '0',
+			wb_in       => intercon_slave_i(INTERCON_ID_FLASH),
+			wb_out      => intercon_slave_o(INTERCON_ID_FLASH),
+			spi_si      => flash_si,
+			spi_so      => flash_so,
+			spi_sck     => flash_sck,
+			spi_reset_n => flash_reset_n,
+			spi_cs_n    => flash_cs_n,
+			spi_wp_n    => flash_wp_n
+		);
+
 	-- Intercon
 	crossbar_inst : entity ip.crossbar
 		generic map(
@@ -313,11 +338,13 @@ begin
 			master_o => intercon_slave_i,
 			address  => (
 				INTERCON_ID_SRAM => x"00000000",
-				INTERCON_ID_DDR3 => x"80000000"
+				INTERCON_ID_DDR3 => x"10000000",
+				INTERCON_ID_FLASH => x"90000000"
 			),
 			mask     => (
 				INTERCON_ID_SRAM => x"ffff0000",
-				INTERCON_ID_DDR3 => x"f0000000"
+				INTERCON_ID_DDR3 => x"f0000000",
+				INTERCON_ID_FLASH => x"f0000000"
 			)
 		);
 end architecture RTL;