riscv: Add Kconfig to support RISC-V
Add Kconfig and makefile for RISC-V
Also modify MAINTAINERS for it.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
new file mode 100644
index 0000000..c50be37
--- /dev/null
+++ b/arch/riscv/Kconfig
@@ -0,0 +1,42 @@
+menu "RISCV architecture"
+ depends on RISCV
+
+config SYS_ARCH
+ default "riscv"
+
+choice
+ prompt "Target select"
+ optional
+
+config TARGET_NX25_AE250
+ bool "Support nx25-ae250"
+
+endchoice
+
+source "board/AndesTech/nx25-ae250/Kconfig"
+
+choice
+ prompt "CPU selection"
+ default CPU_RISCV_32
+
+config CPU_RISCV_32
+ bool "RISCV 32 bit"
+ select 32BIT
+ help
+ Choose this option to build an U-Boot for RISCV32 architecture.
+
+config CPU_RISCV_64
+ bool "RISCV 64 bit"
+ select 64BIT
+ help
+ Choose this option to build an U-Boot for RISCV64 architecture.
+
+endchoice
+
+config 32BIT
+ bool
+
+config 64BIT
+ bool
+
+endmenu