arc: add more flavours of ARC700 series CPU

[J-u-boot.git] / arch / arc / Kconfig

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index d3ef58be043c20d43f4807c8aa74e8f1ff8d48dc..f7d29641441409c7610eddc07980e22d1eddb329 100644 (file)
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -4,6 +4,49 @@ menu "ARC architecture"
 config SYS_ARCH
        default "arc"
 
+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"