diff --git a/src/soc/mediatek/mt8183/include/soc/memlayout.ld b/src/soc/mediatek/mt8183/include/soc/memlayout.ld
index 541f21e0eb..f44c74b0e5 100644
--- a/src/soc/mediatek/mt8183/include/soc/memlayout.ld
+++ b/src/soc/mediatek/mt8183/include/soc/memlayout.ld
@@ -25,11 +25,6 @@
 #define SRAM_L2C_START(addr) SYMBOL(sram_l2c, addr)
 #define SRAM_L2C_END(addr) SYMBOL(esram_l2c, addr)
 
-#define DRAM_DMA(addr, size) \
-	REGION(dram_dma, addr, size, 4K) \
-	_ = ASSERT(size % 4K == 0, \
-		"DRAM DMA buffer should be multiple of smallest page size (4K)!");
-
 SECTIONS
 {
 	SRAM_START(0x00100000)
@@ -50,7 +45,6 @@ SECTIONS
 	SRAM_L2C_END(0x00280000)
 
 	DRAM_START(0x40000000)
-	DRAM_DMA(0x40000000, 1M)
-	POSTRAM_CBFS_CACHE(0x40100000, 1M)
+	POSTRAM_CBFS_CACHE(0x40000000, 2M)
 	RAMSTAGE(0x40200000, 256K)
 }