diff --git a/src/mainboard/google/rush_ryu/Kconfig b/src/mainboard/google/rush_ryu/Kconfig
index c6929af589..ec6eadb86b 100644
--- a/src/mainboard/google/rush_ryu/Kconfig
+++ b/src/mainboard/google/rush_ryu/Kconfig
@@ -91,12 +91,4 @@ config EC_GOOGLE_CHROMEEC_I2C_BUS
 	hex
 	default 1
 
-config DRAM_DMA_START
-	hex
-	default 0xc0000000
-
-config DRAM_DMA_SIZE
-	hex
-	default 0x00200000
-
 endif # BOARD_GOOGLE_RUSH_RYU
diff --git a/src/mainboard/google/rush_ryu/mainboard.c b/src/mainboard/google/rush_ryu/mainboard.c
index 79538555cc..3b291c8203 100644
--- a/src/mainboard/google/rush_ryu/mainboard.c
+++ b/src/mainboard/google/rush_ryu/mainboard.c
@@ -78,14 +78,3 @@ void mainboard_add_memory_ranges(struct memranges *map)
 	memranges_insert(map, CONFIG_DRAM_DMA_START, CONFIG_DRAM_DMA_SIZE,
 			MA_MEM  | MA_MEM_NC | MA_NS | MA_RW);
 }
-
-void lb_board(struct lb_header *header)
-{
-	struct lb_range *dma;
-
-	dma = (struct lb_range *)lb_new_record(header);
-	dma->tag = LB_TAB_DMA;
-	dma->size = sizeof(*dma);
-	dma->range_start = CONFIG_DRAM_DMA_START;
-	dma->range_size = CONFIG_DRAM_DMA_SIZE;
-}