diff --git a/src/Kconfig b/src/Kconfig
index 1549719..ae80240 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -751,8 +751,7 @@
 
 config HEAP_SIZE
 	hex
-	default 0x100000 if FLATTENED_DEVICE_TREE
-	default 0x4000
+	default 0x100000
 
 config STACK_SIZE
 	hex
diff --git a/src/cpu/qemu-x86/Kconfig b/src/cpu/qemu-x86/Kconfig
index f3e2c4c..0fa999e 100644
--- a/src/cpu/qemu-x86/Kconfig
+++ b/src/cpu/qemu-x86/Kconfig
@@ -35,7 +35,4 @@
 	default 32 if SMM_TSEG
 	default 4
 
-config HEAP_SIZE
-	default 0x8000
-
 endif
diff --git a/src/mainboard/sifive/hifive-unleashed/Kconfig b/src/mainboard/sifive/hifive-unleashed/Kconfig
index 7f9300f..7bc3b0b 100644
--- a/src/mainboard/sifive/hifive-unleashed/Kconfig
+++ b/src/mainboard/sifive/hifive-unleashed/Kconfig
@@ -10,9 +10,6 @@
 	select FLATTENED_DEVICE_TREE
 	select SPI_SDCARD
 
-config HEAP_SIZE
-	default 0x10000
-
 config MAINBOARD_DIR
 	default "sifive/hifive-unleashed"
 
diff --git a/src/northbridge/amd/pi/Kconfig b/src/northbridge/amd/pi/Kconfig
index 4518db1..4ffe82a 100644
--- a/src/northbridge/amd/pi/Kconfig
+++ b/src/northbridge/amd/pi/Kconfig
@@ -29,8 +29,4 @@
 	hex
 	default 0x200000
 
-config HEAP_SIZE
-	hex
-	default 0xc0000
-
 endif # NORTHBRIDGE_AMD_PI
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index 796fe4e..c33f287 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -264,10 +264,6 @@
 	bool
 	default n
 
-config HEAP_SIZE
-	hex
-	default 0xc0000
-
 config SERIRQ_CONTINUOUS_MODE
 	bool
 	default n
diff --git a/src/soc/amd/stoneyridge/Kconfig b/src/soc/amd/stoneyridge/Kconfig
index 9af7455..6ff135e 100644
--- a/src/soc/amd/stoneyridge/Kconfig
+++ b/src/soc/amd/stoneyridge/Kconfig
@@ -152,10 +152,6 @@
 	bool
 	default n
 
-config HEAP_SIZE
-	hex
-	default 0xc0000
-
 config EHCI_BAR
 	hex
 	default 0xfef00000
diff --git a/src/soc/cavium/cn81xx/Kconfig b/src/soc/cavium/cn81xx/Kconfig
index 368581f..77ca972 100644
--- a/src/soc/cavium/cn81xx/Kconfig
+++ b/src/soc/cavium/cn81xx/Kconfig
@@ -30,9 +30,6 @@
 	int
 	default 1
 
-config HEAP_SIZE
-	default 0x10000
-
 config STACK_SIZE
 	default 0x2000
 
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index 82ec8f2..4b960c1 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -215,11 +215,6 @@
 	hex
 	default 0x400000
 
-config HEAP_SIZE
-	hex
-	default 0x80000 if BMP_LOGO
-	default 0x10000
-
 config GFX_GMA_DEFAULT_MMIO
 	default 0xaf000000 if MAINBOARD_HAS_EARLY_LIBGFXINIT
 
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig
index bce935d..78ec298 100644
--- a/src/soc/intel/apollolake/Kconfig
+++ b/src/soc/intel/apollolake/Kconfig
@@ -252,10 +252,6 @@
 	help
 	  Name of file to store in the IFWI region.
 
-config HEAP_SIZE
-	hex
-	default 0x8000
-
 config MAX_ROOT_PORTS
 	int
 	default 6
diff --git a/src/soc/intel/cannonlake/Kconfig b/src/soc/intel/cannonlake/Kconfig
index 80237f9..a42a3c3 100644
--- a/src/soc/intel/cannonlake/Kconfig
+++ b/src/soc/intel/cannonlake/Kconfig
@@ -160,10 +160,6 @@
 	hex
 	default 0x400000
 
-config HEAP_SIZE
-	hex
-	default 0x8000
-
 config NHLT_DMIC_1CH_16B
 	bool
 	depends on ACPI_NHLT
diff --git a/src/soc/intel/elkhartlake/Kconfig b/src/soc/intel/elkhartlake/Kconfig
index 7f1c767..3361c0d 100644
--- a/src/soc/intel/elkhartlake/Kconfig
+++ b/src/soc/intel/elkhartlake/Kconfig
@@ -104,10 +104,6 @@
 	hex
 	default 0x0
 
-config HEAP_SIZE
-	hex
-	default 0x8000
-
 config MAX_ROOT_PORTS
 	int
 	default 7
diff --git a/src/soc/intel/jasperlake/Kconfig b/src/soc/intel/jasperlake/Kconfig
index ff5def3..3d84991 100644
--- a/src/soc/intel/jasperlake/Kconfig
+++ b/src/soc/intel/jasperlake/Kconfig
@@ -106,10 +106,6 @@
 	hex
 	default 0x400000
 
-config HEAP_SIZE
-	hex
-	default 0x8000
-
 config MAX_ROOT_PORTS
 	int
 	default 8
diff --git a/src/soc/intel/meteorlake/Kconfig b/src/soc/intel/meteorlake/Kconfig
index 48030a1..590e8b8 100644
--- a/src/soc/intel/meteorlake/Kconfig
+++ b/src/soc/intel/meteorlake/Kconfig
@@ -197,11 +197,6 @@
 	hex
 	default 0x400000
 
-config HEAP_SIZE
-	hex
-	default 0x80000 if BMP_LOGO
-	default 0x10000
-
 # Intel recommends reserving the PCIe TBT root port resources as below:
 # - 42 buses
 # - 194 MiB Non-prefetchable memory
diff --git a/src/soc/intel/skylake/Kconfig b/src/soc/intel/skylake/Kconfig
index d6a11363e..e0df501 100644
--- a/src/soc/intel/skylake/Kconfig
+++ b/src/soc/intel/skylake/Kconfig
@@ -151,10 +151,6 @@
 	help
 	  If you set this option to n, will not use native SD controller.
 
-config HEAP_SIZE
-	hex
-	default 0x80000
-
 config IED_REGION_SIZE
 	hex
 	default 0x400000
diff --git a/src/soc/intel/tigerlake/Kconfig b/src/soc/intel/tigerlake/Kconfig
index 0a4b7bf..c07a0d8 100644
--- a/src/soc/intel/tigerlake/Kconfig
+++ b/src/soc/intel/tigerlake/Kconfig
@@ -152,10 +152,6 @@
 config INTEL_TME
 	default n
 
-config HEAP_SIZE
-	hex
-	default 0x10000
-
 config MAX_ROOT_PORTS
 	int
 	default 24 if SOC_INTEL_TIGERLAKE_PCH_H
diff --git a/src/soc/intel/xeon_sp/Kconfig b/src/soc/intel/xeon_sp/Kconfig
index 63ced01..e63bee5 100644
--- a/src/soc/intel/xeon_sp/Kconfig
+++ b/src/soc/intel/xeon_sp/Kconfig
@@ -91,10 +91,6 @@
 config ECAM_MMCONF_BUS_NUMBER
 	default 256
 
-config HEAP_SIZE
-	hex
-	default 0x80000
-
 config HPET_MIN_TICKS
 	hex
 	default 0x80
diff --git a/src/soc/intel/xeon_sp/cpx/Kconfig b/src/soc/intel/xeon_sp/cpx/Kconfig
index f54f771..ac166c3 100644
--- a/src/soc/intel/xeon_sp/cpx/Kconfig
+++ b/src/soc/intel/xeon_sp/cpx/Kconfig
@@ -71,10 +71,6 @@
 	hex
 	default 0x7C00
 
-config HEAP_SIZE
-	hex
-	default 0x80000
-
 config STACK_SIZE
 	hex
 	default 0x4000
diff --git a/src/soc/intel/xeon_sp/skx/Kconfig b/src/soc/intel/xeon_sp/skx/Kconfig
index c2c3d4e..5d84387 100644
--- a/src/soc/intel/xeon_sp/skx/Kconfig
+++ b/src/soc/intel/xeon_sp/skx/Kconfig
@@ -55,10 +55,6 @@
 	hex
 	default 0x7C00
 
-config HEAP_SIZE
-	hex
-	default 0x80000
-
 config IED_REGION_SIZE
 	hex
 	default 0x400000
diff --git a/src/soc/intel/xeon_sp/spr/Kconfig b/src/soc/intel/xeon_sp/spr/Kconfig
index b1c4c78..43b87ad 100644
--- a/src/soc/intel/xeon_sp/spr/Kconfig
+++ b/src/soc/intel/xeon_sp/spr/Kconfig
@@ -79,10 +79,6 @@
 	hex
 	default 0x8c00
 
-config HEAP_SIZE
-	hex
-	default 0x80000
-
 config STACK_SIZE
 	hex
 	default 0x4000
diff --git a/src/soc/qualcomm/ipq40xx/Kconfig b/src/soc/qualcomm/ipq40xx/Kconfig
index 0eabb00..0ce9273 100644
--- a/src/soc/qualcomm/ipq40xx/Kconfig
+++ b/src/soc/qualcomm/ipq40xx/Kconfig
@@ -57,8 +57,4 @@
 	help
 	  Path for utils to combine SBL_ELF and bootblock
 
-config HEAP_SIZE
-	hex
-	default 0x8000
-
 endif