diff --git a/src/mainboard/amd/crater/board_renoir.fmd b/src/mainboard/amd/crater/board_renoir.fmd
index b5a4e73a00..f3606246d2 100644
--- a/src/mainboard/amd/crater/board_renoir.fmd
+++ b/src/mainboard/amd/crater/board_renoir.fmd
@@ -6,6 +6,6 @@ FLASH 16M {
 		PSP_NVRAM(PRESERVE) 128K
 		PSP_RPMC_NVRAM(PRESERVE) 256K
 		EC_BODY@15872K 256K
-		RW_MRC_CACHE 64K
+		RW_MRC_CACHE 120K
 	}
 }
diff --git a/src/mainboard/amd/crater/chromeos_renoir.fmd b/src/mainboard/amd/crater/chromeos_renoir.fmd
index 12b472774e..71b8827ced 100644
--- a/src/mainboard/amd/crater/chromeos_renoir.fmd
+++ b/src/mainboard/amd/crater/chromeos_renoir.fmd
@@ -30,6 +30,6 @@ FLASH 16M {
 		SMMSTORE(PRESERVE) 256K
 		RW_LEGACY(CBFS)
 		EC_BODY@15872K 256K
-		RW_MRC_CACHE(PRESERVE) 64K
+		RW_MRC_CACHE(PRESERVE) 120K
 	}
 }
diff --git a/src/soc/amd/cezanne/Kconfig b/src/soc/amd/cezanne/Kconfig
index d02339e400..26d3f3e4a8 100644
--- a/src/soc/amd/cezanne/Kconfig
+++ b/src/soc/amd/cezanne/Kconfig
@@ -157,10 +157,12 @@ config PSP_APOB_DRAM_ADDRESS
 
 config PSP_APOB_DRAM_SIZE
 	hex
+	default 0x1E000 if SOC_AMD_RENOIR
 	default 0x10000
 
 config PSP_SHAREDMEM_BASE
 	hex
+	default 0x201F000 if VBOOT && SOC_AMD_RENOIR
 	default 0x2011000 if VBOOT
 	default 0x0
 	help
diff --git a/src/soc/amd/cezanne/memmap.c b/src/soc/amd/cezanne/memmap.c
index bb1eca24e6..feecdd7b13 100644
--- a/src/soc/amd/cezanne/memmap.c
+++ b/src/soc/amd/cezanne/memmap.c
@@ -32,7 +32,7 @@
  *                     |     (C_ENV_BOOTBLOCK_SIZE)     |
  *                     +--------------------------------+ BOOTBLOCK_ADDR = BOOTBLOCK_END - C_ENV_BOOTBLOCK_SIZE
  *                     |          Unused hole           |
- *                     |            (86KiB)             |
+ *                     |            (30KiB)             |
  *                     +--------------------------------+
  *                     |     FMAP cache (FMAP_SIZE)     |
  *                     +--------------------------------+ PSP_SHAREDMEM_BASE + PSP_SHAREDMEM_SIZE + PRERAM_CBMEM_CONSOLE_SIZE + 0x200
@@ -44,7 +44,7 @@
  *                     |   PSP shared (vboot workbuf)   |
  *                     |      (PSP_SHAREDMEM_SIZE)      |
  *                     +--------------------------------+ PSP_SHAREDMEM_BASE
- *                     |          APOB (64KiB)          |
+ *                     |          APOB (120KiB)         |
  *                     +--------------------------------+ PSP_APOB_DRAM_ADDRESS
  *                     |        Early BSP stack         |
  *                     |   (EARLYRAM_BSP_STACK_SIZE)    |