config SYS_ARCH
default "arc"
-config USE_PRIVATE_LIBGCC
- default y
-
config SYS_CPU
- default "arcv1"
+ default "arcv1" if ISA_ARCOMPACT
+ default "arcv2" if ISA_ARCV2
+
+choice
+ prompt "ARC Instruction Set"
+ default ISA_ARCOMPACT
+
+config ISA_ARCOMPACT
+ bool "ARCompact ISA"
+ help
+ The original ARC ISA of ARC600/700 cores
+
+config ISA_ARCV2
+ bool "ARC ISA v2"
+ help
+ ISA for the Next Generation ARC-HS cores
+
+endchoice
choice
prompt "CPU selection"
- default CPU_ARC770D
+ default CPU_ARC770D if ISA_ARCOMPACT
+ default CPU_ARCHS38 if ISA_ARCV2
config CPU_ARC750D
bool "ARC 750D"
select ARC_MMU_V2
+ depends on ISA_ARCOMPACT
help
Choose this option to build an U-Boot for ARC750D CPU.
config CPU_ARC770D
bool "ARC 770D"
select ARC_MMU_V3
+ depends on ISA_ARCOMPACT
help
Choose this option to build an U-Boot for ARC770D CPU.
+config CPU_ARCEM6
+ bool "ARC EM6"
+ select ARC_MMU_ABSENT
+ depends on ISA_ARCV2
+ help
+ Next Generation ARC Core based on ISA-v2 ISA without MMU.
+
+config CPU_ARCHS36
+ bool "ARC HS36"
+ select ARC_MMU_ABSENT
+ depends on ISA_ARCV2
+ help
+ Next Generation ARC Core based on ISA-v2 ISA without MMU.
+
+config CPU_ARCHS38
+ bool "ARC HS38"
+ select ARC_MMU_V4
+ depends on ISA_ARCV2
+ help
+ Next Generation ARC Core based on ISA-v2 ISA with MMU.
+
endchoice
choice
prompt "MMU Version"
default ARC_MMU_V3 if CPU_ARC770D
default ARC_MMU_V2 if CPU_ARC750D
+ default ARC_MMU_ABSENT if CPU_ARCEM6
+ default ARC_MMU_ABSENT if CPU_ARCHS36
+ default ARC_MMU_V4 if CPU_ARCHS38
+
+config ARC_MMU_ABSENT
+ bool "No MMU"
+ help
+ No MMU
config ARC_MMU_V2
bool "MMU v2"
Variable Page size (1k-16k), var JTLB size 128 x (2 or 4)
Shared Address Spaces (SASID)
+config ARC_MMU_V4
+ bool "MMU v4"
+ depends on CPU_ARCHS38
+ help
+ Introduced as a part of ARC HS38 release.
+
endchoice
config CPU_BIG_ENDIAN
int "Cache Line Length (as power of 2)"
range 5 7
default "6"
- depends on !SYS_DCACHE_OFF || !SYS_DCACHE_OFF
+ depends on !SYS_DCACHE_OFF || !SYS_ICACHE_OFF
help
Starting with ARC700 4.9, Cache line length is configurable,
This option specifies "N", with Line-len = 2 power N
choice
prompt "Target select"
+ optional
config TARGET_TB100
bool "Support tb100"