diff --git a/asm/link.s b/asm/link.s
index 93005de35..f0250361f 100644
--- a/asm/link.s
+++ b/asm/link.s
@@ -7,55 +7,6 @@
 
 // RFU; bss indicates that no file boundary exists here
 
-	thumb_func_start sub_800BFA0
-sub_800BFA0: @ 800BFA0
-	push {r4,lr}
-	sub sp, 0x4
-	mov r1, sp
-	movs r0, 0
-	strh r0, [r1]
-	ldr r4, =gUnknown_03004140
-	ldr r2, =0x01000020
-	mov r0, sp
-	adds r1, r4, 0
-	bl CpuSet
-	movs r0, 0xFF
-	strb r0, [r4, 0x6]
-	add sp, 0x4
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_800BFA0
-
-	thumb_func_start sub_800BFCC
-sub_800BFCC: @ 800BFCC
-	push {r4,lr}
-	adds r4, r0, 0
-	bl sub_800C000
-	ldr r1, =gUnknown_03004140
-	movs r2, 0x1
-	strb r2, [r1, 0x4]
-	movs r0, 0x2
-	strb r0, [r1, 0x5]
-	str r4, [r1, 0x3C]
-	ldrb r0, [r4, 0x11]
-	strb r0, [r1, 0x9]
-	ldrh r0, [r4, 0x12]
-	strh r0, [r1, 0x32]
-	ldrh r0, [r4, 0x14]
-	strh r0, [r1, 0x18]
-	ldrb r0, [r4, 0x10]
-	cmp r0, 0
-	beq _0800BFF4
-	strb r2, [r1, 0xB]
-_0800BFF4:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_800BFCC
-
 	thumb_func_start sub_800C000
 sub_800C000: @ 800C000
 	push {r4,r5,lr}
diff --git a/include/link_rfu.h b/include/link_rfu.h
index 24bddbe57..88737559f 100644
--- a/include/link_rfu.h
+++ b/include/link_rfu.h
@@ -3,6 +3,15 @@
 
 // Exported type declarations
 
+struct UnkLinkRfuStruct_02022B2C
+{
+    u8 filler_00[16];
+    u8 unk_10;
+    u8 unk_11;
+    u16 unk_12;
+    u16 unk_14;
+};
+
 struct UnkRfuStruct_1 {
     u8 unk_00;
     u8 unk_01;
@@ -13,9 +22,17 @@ struct UnkRfuStruct_1 {
     u8 unk_06;
     u8 unk_07;
     u8 unk_08;
-    u8 filler_09[4];
+    u8 unk_09;
+    u8 unk_0a;
+    u8 unk_0b;
+    u8 unk_0c;
     u8 unk_0d;
-    u8 filler_0e[0x32];
+    u8 filler_0e[10];
+    u16 unk_18;
+    u8 filler_1a[0x18];
+    u16 unk_32;
+    u8 filler_34[8];
+    struct UnkLinkRfuStruct_02022B2C *unk_3c;
     void (*unk_40)(u8);
     void (*unk_44)(void);
 };
diff --git a/src/link.c b/src/link.c
index 963ef603e..96234ad04 100644
--- a/src/link.c
+++ b/src/link.c
@@ -172,6 +172,7 @@ static void SendRecvDone(void);
 void sub_800D610(void);
 void sub_800CEB0(u16 unk0);
 void sub_800C7B4(u16 unk0, u16 unk1);
+void sub_800C000(void);
 
 // .rodata
 
@@ -2502,3 +2503,24 @@ int sub_800BF4C(void (*func1)(u8), void (*func2)(void))
     rfu_setREQCallback(sub_800C7B4);
     return 0;
 }
+
+void sub_800BFA0(void)
+{
+    CpuFill16(0, &gUnknown_03004140, sizeof(gUnknown_03004140) - 2 * sizeof(void *));
+    gUnknown_03004140.unk_06 = -1;
+}
+
+void sub_800BFCC(struct UnkLinkRfuStruct_02022B2C *unk0)
+{
+    sub_800C000();
+    gUnknown_03004140.unk_04 = 1;
+    gUnknown_03004140.unk_05 = 2;
+    gUnknown_03004140.unk_3c = unk0;
+    gUnknown_03004140.unk_09 = unk0->unk_11;
+    gUnknown_03004140.unk_32 = unk0->unk_12;
+    gUnknown_03004140.unk_18 = unk0->unk_14;
+    if (unk0->unk_10)
+    {
+        gUnknown_03004140.unk_0b = 1;
+    }
+}