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Diffstat (limited to 'arch/arc/Kconfig')
| -rw-r--r-- | arch/arc/Kconfig | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index c6b1efe..f7d2964 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -8,6 +8,46 @@ config SYS_CPU default "arcv1" choice + prompt "CPU selection" + default CPU_ARC770D + +config CPU_ARC750D + bool "ARC 750D" + select ARC_MMU_V2 + help + Choose this option to build an U-Boot for ARC750D CPU. + +config CPU_ARC770D + bool "ARC 770D" + select ARC_MMU_V3 + help + Choose this option to build an U-Boot for ARC770D CPU. + +endchoice + +choice + prompt "MMU Version" + default ARC_MMU_V3 if CPU_ARC770D + default ARC_MMU_V2 if CPU_ARC750D + +config ARC_MMU_V2 + bool "MMU v2" + depends on CPU_ARC750D + help + Fixed the deficiency of v1 - possible thrashing in memcpy sceanrio + when 2 D-TLB and 1 I-TLB entries index into same 2way set. + +config ARC_MMU_V3 + bool "MMU v3" + depends on CPU_ARC770D + help + Introduced with ARC700 4.10: New Features + Variable Page size (1k-16k), var JTLB size 128 x (2 or 4) + Shared Address Spaces (SASID) + +endchoice + +choice prompt "Target select" config TARGET_TB100 |