diff --git a/arch/sparc32/openbios.c b/arch/sparc32/openbios.c
index f132057..e421f77 100644
--- a/arch/sparc32/openbios.c
+++ b/arch/sparc32/openbios.c
@@ -95,18 +95,17 @@ arch_init( void )
 	void setup_timers(void);
 
 	modules_init();
-#ifdef CONFIG_DRIVER_SBUS
         ob_init_mmu(hwdef->iommu_high, hwdef->iommu_base);
-	ob_sbus_init(hwdef->iommu_high, hwdef->iommu_base + 0x1000, hwdef->machine_id);
-
-#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
-	init_video();
-#endif
-#endif
 #ifdef CONFIG_DRIVER_OBIO
 	ob_obio_init(hwdef->slavio_high, hwdef->slavio_base, hwdef->fd_offset,
                      hwdef->counter_offset, hwdef->intr_offset);
         nvram_init();
+#endif
+#ifdef CONFIG_DRIVER_SBUS
+#ifdef CONFIG_DEBUG_CONSOLE_VIDEO
+	init_video();
+#endif
+	ob_sbus_init(hwdef->iommu_high, hwdef->iommu_base + 0x1000, hwdef->machine_id);
 #endif
 	device_end();
 
diff --git a/arch/sparc32/tree.fs b/arch/sparc32/tree.fs
index 2ef2625..4036cfd 100644
--- a/arch/sparc32/tree.fs
+++ b/arch/sparc32/tree.fs
@@ -88,8 +88,6 @@ new-device
   h# 300 encode-int " height" property
   h# 400 encode-int " width" property
   h# 400 encode-int " linebytes" property
-  d# 24 encode-int " depth" property
-  " no" encode-string " tcx-8-bit" property
   5 encode-int 0 encode-int encode+ " intr" property
   5 encode-int " interrupts" property
 finish-device
diff --git a/drivers/obio.c b/drivers/obio.c
index 72580a8..97e4339 100644
--- a/drivers/obio.c
+++ b/drivers/obio.c
@@ -349,6 +349,7 @@ ob_nvram_init(unsigned long base, unsigned long offset)
     extern char boot_device;
     extern char obp_stdin, obp_stdout;
     extern const char *obp_stdin_path, *obp_stdout_path;
+    extern uint16_t graphic_depth;
 
     const char *stdin, *stdout, *cpuname;
     unsigned int i;
@@ -386,6 +387,7 @@ ob_nvram_init(unsigned long base, unsigned long offset)
 
     boot_device = nv_info.boot_device;
     nographic = nv_info.nographic;
+    graphic_depth = nv_info.depth;
 
     push_str("mk48t08");
     fword("model");
diff --git a/drivers/sbus.c b/drivers/sbus.c
index caef992..904b53c 100644
--- a/drivers/sbus.c
+++ b/drivers/sbus.c
@@ -77,6 +77,8 @@ ob_le_init(unsigned int slot, unsigned long base, unsigned long offset)
     fword("property");
 }
 
+uint16_t graphic_depth;
+
 static void
 ob_tcx_init(unsigned int slot, unsigned long base)
 {
@@ -98,7 +100,11 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x02000000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000001);
+    if (graphic_depth == 24) {
+        PUSH(0x00400000);
+    } else {
+        PUSH(0x00000001);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -108,7 +114,11 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x04000000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000001);
+    if (graphic_depth == 24) {
+        PUSH(0x00400000);
+    } else {
+        PUSH(0x00000001);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -128,7 +138,11 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x0a000000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000001);
+    if (graphic_depth == 24) {
+        PUSH(0x00400000);
+    } else {
+        PUSH(0x00000001);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -138,7 +152,11 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x0c000000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000001);
+    if (graphic_depth == 24) {
+        PUSH(0x00800000);
+    } else {
+        PUSH(0x00000001);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -148,7 +166,11 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x0e000000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000001);
+    if (graphic_depth == 24) {
+        PUSH(0x00800000);
+    } else {
+        PUSH(0x00000001);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -168,17 +190,29 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x00200000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000004);
+    if (graphic_depth == 24) {
+        PUSH(0x00004000);
+    } else {
+        PUSH(0x00000004);
+    }
     fword("encode-int");
     fword("encode+");
 
     PUSH(slot);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00300000);
+    if (graphic_depth == 24) {
+        PUSH(0x00301000);
+    } else {
+        PUSH(0x00300000);
+    }
     fword("encode-int");
     fword("encode+");
-    PUSH(0x0000081c);
+    if (graphic_depth == 24) {
+        PUSH(0x00001000);
+    } else {
+        PUSH(0x0000081c);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -198,7 +232,11 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x00240000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000004);
+    if (graphic_depth == 24) {
+        PUSH(0x00004000);
+    } else {
+        PUSH(0x00000004);
+    }
     fword("encode-int");
     fword("encode+");
 
@@ -208,12 +246,28 @@ ob_tcx_init(unsigned int slot, unsigned long base)
     PUSH(0x00280000);
     fword("encode-int");
     fword("encode+");
-    PUSH(0x00000001);
+    if (graphic_depth == 24) {
+        PUSH(0x00008000);
+    } else {
+        PUSH(0x00000001);
+    }
     fword("encode-int");
     fword("encode+");
 
     push_str("reg");
     fword("property");
+
+    PUSH((int)graphic_depth);
+    fword("encode-int");
+    push_str("depth");
+    fword("property");
+
+    if (graphic_depth == 8) {
+        push_str("true");
+        fword("encode-string");
+        push_str("tcx-8-bit");
+        fword("property");
+    }
 }
 
 static void