diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 32a90b8..8f95781 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -152,6 +152,21 @@
 	  when building U-Boot, which results in compressed instructions in the
 	  U-Boot binary.
 
+config RISCV_ISA_F
+	bool "Standard extension for Single-Precision Floating Point"
+	default y
+	help
+	  Adds "F" to the ISA string passed to the compiler.
+
+config RISCV_ISA_D
+	bool "Standard extension for Double-Precision Floating Point"
+	depends on RISCV_ISA_F
+	default y
+	help
+	  Adds "D" to the ISA string passed to the compiler and changes the
+	  riscv32 ABI from ilp32 to ilp32d and the riscv64 ABI from lp64 to
+	  lp64d.
+
 config RISCV_ISA_A
 	def_bool y
 
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 53d1194..4963b51 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -5,15 +5,22 @@
 
 ifeq ($(CONFIG_ARCH_RV64I),y)
 	ARCH_BASE = rv64im
-	ABI = lp64
+	ABI_BASE = lp64
 endif
 ifeq ($(CONFIG_ARCH_RV32I),y)
 	ARCH_BASE = rv32im
-	ABI = ilp32
+	ABI_BASE = ilp32
 endif
 ifeq ($(CONFIG_RISCV_ISA_A),y)
 	ARCH_A = a
 endif
+ifeq ($(CONFIG_RISCV_ISA_F),y)
+	ARCH_F = f
+endif
+ifeq ($(CONFIG_RISCV_ISA_D),y)
+	ARCH_D = d
+	ABI_D = d
+endif
 ifeq ($(CONFIG_RISCV_ISA_C),y)
 	ARCH_C = c
 endif
@@ -24,7 +31,9 @@
 	CMODEL = medany
 endif
 
-RISCV_MARCH = $(ARCH_BASE)$(ARCH_A)$(ARCH_C)
+
+RISCV_MARCH = $(ARCH_BASE)$(ARCH_A)$(ARCH_F)$(ARCH_D)$(ARCH_C)
+ABI = $(ABI_BASE)$(ABI_D)
 
 # Newer binutils versions default to ISA spec version 20191213 which moves some
 # instructions from the I extension to the Zicsr and Zifencei extensions.