diff --git a/software/bios/boot.c b/software/bios/boot.c
index 93ae18cbe..3c505e1cd 100644
--- a/software/bios/boot.c
+++ b/software/bios/boot.c
@@ -175,6 +175,8 @@ void serialboot(void)
 	}
 }
 
+#ifdef MINIMAC_BASE
+
 #define LOCALIP1 192
 #define LOCALIP2 168
 #define LOCALIP3 0
@@ -237,6 +239,8 @@ void netboot(void)
 	boot(cmdline_adr, initrdstart_adr, initrdend_adr, SDRAM_BASE);
 }
 
+#endif
+
 void flashboot(void)
 {
 	unsigned int *flashbase;
diff --git a/software/bios/main.c b/software/bios/main.c
index 922d3e2a8..c22a12a72 100644
--- a/software/bios/main.c
+++ b/software/bios/main.c
@@ -306,7 +306,6 @@ static void dfs(char *baseaddr)
 static void help(void)
 {
 	puts("MiSoC BIOS");
-	puts("Don't know what to do? Try 'flashboot'.\n");
 	puts("Available commands:");
 	puts("mr         - read address space");
 	puts("mw         - write address space");
@@ -314,7 +313,9 @@ static void help(void)
 	puts("crc        - compute CRC32 of a part of the address space");
 	puts("rcsr       - read processor CSR");
 	puts("wcsr       - write processor CSR");
+#ifdef MINIMAC_BASE
 	puts("netboot    - boot via TFTP");
+#endif
 	puts("serialboot - boot via SFL");
 	puts("flashboot  - boot from flash");
 	puts("revision   - display revision");
@@ -350,7 +351,9 @@ static void do_command(char *c)
 
 	else if(strcmp(token, "flashboot") == 0) flashboot();
 	else if(strcmp(token, "serialboot") == 0) serialboot();
+#ifdef MINIMAC_BASE
 	else if(strcmp(token, "netboot") == 0) netboot();
+#endif
 	
 	else if(strcmp(token, "revision") == 0) printf("%08x\n", GIT_ID);
 
@@ -359,6 +362,7 @@ static void do_command(char *c)
 	else if(strcmp(token, "rcsr") == 0) rcsr(get_token(&c));
 	else if(strcmp(token, "wcsr") == 0) wcsr(get_token(&c), get_token(&c));
 	
+#ifdef DFII_BASE
 	else if(strcmp(token, "ddrrow") == 0) ddrrow(get_token(&c));
 	else if(strcmp(token, "ddrsw") == 0) ddrsw();
 	else if(strcmp(token, "ddrhw") == 0) ddrhw();
@@ -366,6 +370,7 @@ static void do_command(char *c)
 	else if(strcmp(token, "ddrwr") == 0) ddrwr(get_token(&c));
 	else if(strcmp(token, "memtest") == 0) memtest();
 	else if(strcmp(token, "ddrinit") == 0) ddrinit();
+#endif
 	
 	else if(strcmp(token, "dfs") == 0) dfs(get_token(&c));
 
@@ -440,7 +445,9 @@ static int test_user_abort(void)
 	printf("Automatic boot in 2 seconds...\n");
 	printf("Q/ESC: abort boot\n");
 	printf("F7:    boot from serial\n");
+#ifdef MINIMAC_BASE
 	printf("F8:    boot from network\n");
+#endif
 	timer0_en_write(0);
 	timer0_reload_write(0);
 	timer0_load_write(identifier_frequency_read()*2);
@@ -457,10 +464,12 @@ static int test_user_abort(void)
 				serialboot();
 				return 0;
 			}
+#ifdef MINIMAC_BASE
 			if(c == 0x07) {
 				netboot();
 				return 0;
 			}
+#endif
 		}
 		timer0_update_value_write(1);
 	}
@@ -472,7 +481,9 @@ static void boot_sequence(void)
 	if(test_user_abort()) {
 		flashboot();
 		serialboot();
+#ifdef MINIMAC_BASE
 		netboot();
+#endif
 		printf("No boot medium found\n");
 	}
 }
@@ -490,8 +501,14 @@ int main(int i, char **c)
 	printf("Revision %08x built "__DATE__" "__TIME__"\n\n", GIT_ID);
 	crcbios();
 	id_print();
+#ifdef MINIMAC_BASE
 	ethreset();
+#endif
+#ifdef DFII_BASE
 	ddr_ok = ddrinit();
+#else
+	ddr_ok = 1;
+#endif
 	if(ddr_ok)
 		boot_sequence();
 	else
diff --git a/software/bios/sdram.c b/software/bios/sdram.c
index 3a4fed44b..cb0539628 100644
--- a/software/bios/sdram.c
+++ b/software/bios/sdram.c
@@ -1,7 +1,9 @@
+#include <generated/csr.h>
+#ifdef DFII_BASE
+
 #include <stdio.h>
 #include <stdlib.h>
 
-#include <generated/csr.h>
 #include <generated/sdram_phy.h>
 #include <hw/flags.h>
 #include <hw/mem.h>
@@ -157,3 +159,5 @@ int ddrinit(void)
 	
 	return 1;
 }
+
+#endif
diff --git a/software/libnet/microudp.c b/software/libnet/microudp.c
index 09e4c40e5..6cd2f1ebe 100644
--- a/software/libnet/microudp.c
+++ b/software/libnet/microudp.c
@@ -1,7 +1,9 @@
+#include <generated/csr.h>
+#ifdef MINIMAC_BASE
+
 #include <stdio.h>
 #include <system.h>
 #include <crc.h>
-#include <generated/csr.h>
 #include <hw/flags.h>
 #include <hw/mem.h>
 
@@ -407,3 +409,5 @@ void ethreset(void)
 	minimac_phy_reset_write(0);
 	busy_wait(2);
 }
+
+#endif