arch: xip: cleanup XIP Kconfig

unify how XIP is configured across architectures. Use imply instead of
setting defaults per architecture and imply XIP on riscv arch and remove
XIP configuration from individual defconfig files to match other
architectures.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

arch/Kconfig

@@ -20,6 +20,7 @@ config ARC
 	bool
 	select ARCH_IS_SET
 	select HAS_DTS
+	imply XIP
 	help
 	  ARC architecture
 
@@ -48,6 +49,7 @@ config NIOS2
 	select ARCH_IS_SET
 	select ATOMIC_OPERATIONS_C
 	select HAS_DTS
+	imply XIP
 	help
 	  Nios II Gen 2 architecture
 
@@ -55,6 +57,7 @@ config RISCV
 	bool
 	select ARCH_IS_SET
 	select HAS_DTS
+	imply XIP
 	help
 	  RISCV architecture
 

arch/arc/Kconfig

@@ -189,9 +189,6 @@ config FAULT_DUMP
 
 	  0: Off.
 
-config XIP
-	default y if !SOC_NSIM
-
 config GEN_ISR_TABLES
 	default y
 

arch/arm/core/aarch32/Kconfig

@@ -17,6 +17,7 @@ config CPU_CORTEX_M
 	select ARCH_HAS_RAMFUNC_SUPPORT
 	select ARCH_HAS_NESTED_EXCEPTION_DETECTION
 	select SWAP_NONATOMIC
+	imply XIP
 	help
 	  This option signifies the use of a CPU of the Cortex-M family.
 

arch/arm/core/aarch32/cortex_m/Kconfig

@@ -229,9 +229,6 @@ config ARMV8_M_DSP
 	  This option signifies the use of an ARMv8-M processor
 	  implementation supporting the DSP Extension.
 
-config XIP
-	default y
-
 menu "ARM Cortex-M0/M0+/M3/M4/M7/M23/M33 options"
     depends on ARMV6_M_ARMV8_M_BASELINE || ARMV7_M_ARMV8_M_MAINLINE
 

arch/nios2/Kconfig

@@ -21,9 +21,6 @@ endmenu
 
 menu "Nios II Family Options"
 
-config XIP
-	default y
-
 config GEN_ISR_TABLES
 	default y
 

arch/x86/Kconfig

@@ -76,9 +76,6 @@ config IRQ_OFFLOAD_VECTOR
 	range 32 255
 	depends on IRQ_OFFLOAD
 
-config XIP
-	default n
-
 config PIC_DISABLE
 	bool "Disable PIC"
 	help

boards/riscv/litex_vexriscv/litex_vexriscv_defconfig

@@ -27,3 +27,4 @@ CONFIG_I2C=y
 CONFIG_I2C_LITEX=y
 CONFIG_PWM=y
 CONFIG_PWM_LITEX=y
+CONFIG_XIP=n

soc/arc/snps_nsim/Kconfig.defconfig

@@ -9,6 +9,9 @@ config SOC
 config UART_CONSOLE_ON_DEV_NAME
 	default "UART_0"
 
+config XIP
+	default n
+
 source "soc/arc/snps_nsim/Kconfig.defconfig.em"
 source "soc/arc/snps_nsim/Kconfig.defconfig.sem"
 source "soc/arc/snps_nsim/Kconfig.defconfig.hs"

soc/riscv/openisa_rv32m1/Kconfig.defconfig

@@ -20,9 +20,6 @@ config NUM_IRQS
 	default 64 if RV32M1_INTMUX_CHANNEL_0
 	default 32
 
-config XIP
-	default y
-
 config RISCV_GENERIC_TOOLCHAIN
 	default y if "$(ZEPHYR_TOOLCHAIN_VARIANT)" = "zephyr"
 	default n

soc/riscv/riscv-privilege/miv/Kconfig.defconfig.series

@@ -29,7 +29,4 @@ config MAX_IRQ_PER_AGGREGATOR
 config NUM_IRQS
 	default 42
 
-config XIP
-	default y
-
 endif # SOC_SERIES_RISCV32_MIV

soc/riscv/riscv-privilege/sifive-freedom/Kconfig.defconfig.series

@@ -29,7 +29,4 @@ config MAX_IRQ_PER_AGGREGATOR
 config NUM_IRQS
 	default 64
 
-config XIP
-	default y
-
 endif # SOC_SERIES_RISCV_SIFIVE_FREEDOM