diff -Nur linux-4.4.302.orig/arch/h8300/boot/dts/edosk2674.dts linux-4.4.302/arch/h8300/boot/dts/edosk2674.dts
--- linux-4.4.302.orig/arch/h8300/boot/dts/edosk2674.dts	2022-02-03 09:27:54.000000000 +0100
+++ linux-4.4.302/arch/h8300/boot/dts/edosk2674.dts	2026-08-27 14:19:08.312619408 +0200
@@ -104,4 +104,15 @@
 		clocks = <&fclk>;
 		clock-names = "sci_ick";
 	};
+	flash: flash@0 {
+		compatible = "cfi-flash";
+		reg = <0x000000 0x400000>;
+		bank-width = <2>;
+		device-width = <2>;
+	};
+        ethernet: ethernet@f80000 {                                             
+                compatible = "smsc,lan91c94";                                   
+                reg = <0xf80000 0xfbffff>;                                      
+                interrupts = <16 0>;                                            
+        };                
 };
diff -Nur linux-4.4.302.orig/arch/h8300/boot/dts/h8300h_sim.dts linux-4.4.302/arch/h8300/boot/dts/h8300h_sim.dts
--- linux-4.4.302.orig/arch/h8300/boot/dts/h8300h_sim.dts	2022-02-03 09:27:54.000000000 +0100
+++ linux-4.4.302/arch/h8300/boot/dts/h8300h_sim.dts	2026-08-27 14:17:11.028444049 +0200
@@ -37,7 +37,7 @@
 
 	memory@400000 {
 		device_type = "memory";
-		reg = <0x400000 0x400000>;
+		reg = <0x400000 0x800000>;
 	};
 
 	cpus {
diff -Nur linux-4.4.302.orig/arch/h8300/Kconfig.cpu linux-4.4.302/arch/h8300/Kconfig.cpu
--- linux-4.4.302.orig/arch/h8300/Kconfig.cpu	2022-02-03 09:27:54.000000000 +0100
+++ linux-4.4.302/arch/h8300/Kconfig.cpu	2026-08-27 14:17:11.028444049 +0200
@@ -96,4 +96,8 @@
         hex "Load offset"
 	default 0
 
+config RAMBASE
+	hex "RAM base address"
+	default 0x400000
+
 endmenu
diff -Nur linux-4.4.302.orig/drivers/net/ethernet/smsc/Kconfig linux-4.4.302/drivers/net/ethernet/smsc/Kconfig
--- linux-4.4.302.orig/drivers/net/ethernet/smsc/Kconfig	2022-02-03 09:27:54.000000000 +0100
+++ linux-4.4.302/drivers/net/ethernet/smsc/Kconfig	2026-08-27 14:17:21.080457216 +0200
@@ -7,7 +7,7 @@
 	default y
 	depends on ARM || ARM64 || ATARI_ETHERNAT || BLACKFIN || COLDFIRE || \
 		   ISA || M32R || MAC || MIPS || MN10300 || NIOS2 || PCI || \
-		   PCMCIA || SUPERH || XTENSA
+		   PCMCIA || SUPERH || XTENSA || H8300
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 
@@ -36,9 +36,8 @@
 	tristate "SMC 91C9x/91C1xxx support"
 	select CRC32
 	select MII
-	depends on !OF || GPIOLIB
 	depends on ARM || ARM64 || ATARI_ETHERNAT || BLACKFIN || COLDFIRE || \
-		   M32R || MIPS || MN10300 || NIOS2 || SUPERH || XTENSA
+		   M32R || MIPS || MN10300 || NIOS2 || SUPERH || XTENSA || H8300
 	---help---
 	  This is a driver for SMC's 91x series of Ethernet chipsets,
 	  including the SMC91C94 and the SMC91C111. Say Y if you want it
diff -Nur linux-4.4.302.orig/drivers/net/ethernet/smsc/smc91x.c linux-4.4.302/drivers/net/ethernet/smsc/smc91x.c
--- linux-4.4.302.orig/drivers/net/ethernet/smsc/smc91x.c	2022-02-03 09:27:54.000000000 +0100
+++ linux-4.4.302/drivers/net/ethernet/smsc/smc91x.c	2026-08-27 14:17:21.080457216 +0200
@@ -61,7 +61,7 @@
 
 /* Debugging level */
 #ifndef SMC_DEBUG
-#define SMC_DEBUG		0
+#define SMC_DEBUG		1
 #endif
 
 
@@ -2204,6 +2204,7 @@
 };
 MODULE_DEVICE_TABLE(of, smc91x_match);
 
+#if defined(CONFIG_GPIOLIB)
 /**
  * of_try_set_control_gpio - configure a gpio if it exists
  */
@@ -2228,6 +2229,15 @@
 
 	return 0;
 }
+#else
+static int try_toggle_control_gpio(struct device *dev,
+                                  struct gpio_desc **desc,
+                                  const char *name, int index,
+                                  int value, unsigned int nsdelay)
+{
+	return 0;
+}
+#endif
 #endif
 
 /*
diff -Nur linux-4.4.302.orig/drivers/tty/serial/sh-sci.c linux-4.4.302/drivers/tty/serial/sh-sci.c
--- linux-4.4.302.orig/drivers/tty/serial/sh-sci.c	2022-02-03 09:27:54.000000000 +0100
+++ linux-4.4.302/drivers/tty/serial/sh-sci.c	2026-08-27 14:17:11.028444049 +0200
@@ -889,8 +889,6 @@
 		/* overrun error */
 		if (tty_insert_flip_char(tport, 0, TTY_OVERRUN))
 			copied++;
-
-		dev_notice(port->dev, "overrun error\n");
 	}
 
 	if (status & SCxSR_FER(port)) {
@@ -963,7 +961,6 @@
 		tty_insert_flip_char(tport, 0, TTY_OVERRUN);
 		tty_flip_buffer_push(tport);
 
-		dev_dbg(port->dev, "overrun error\n");
 		copied++;
 	}