1menu "Processor features"
2
3choice
4	prompt "Endianess selection"
5	default CPU_LITTLE_ENDIAN
6	help
7	  Some SuperH machines can be configured for either little or big
8	  endian byte order. These modes require different kernels.
9
10config CPU_LITTLE_ENDIAN
11	bool "Little Endian"
12
13config CPU_BIG_ENDIAN
14	bool "Big Endian"
15	depends on !CPU_SH5
16
17endchoice
18
19config SH_FPU
20	def_bool y
21	prompt "FPU support"
22	depends on CPU_HAS_FPU
23	help
24	  Selecting this option will enable support for SH processors that
25	  have FPU units (ie, SH77xx).
26
27	  This option must be set in order to enable the FPU.
28
29config SH64_FPU_DENORM_FLUSH
30	bool "Flush floating point denorms to zero"
31	depends on SH_FPU && SUPERH64
32
33config SH_FPU_EMU
34	def_bool n
35	prompt "FPU emulation support"
36	depends on !SH_FPU && EXPERIMENTAL
37	help
38	  Selecting this option will enable support for software FPU emulation.
39	  Most SH-3 users will want to say Y here, whereas most SH-4 users will
40	  want to say N.
41
42config SH_DSP
43	def_bool y
44	prompt "DSP support"
45	depends on CPU_HAS_DSP
46	help
47	  Selecting this option will enable support for SH processors that
48	  have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
49
50	  This option must be set in order to enable the DSP.
51
52config SH_ADC
53	def_bool y
54	prompt "ADC support"
55	depends on CPU_SH3
56	help
57	  Selecting this option will allow the Linux kernel to use SH3 on-chip
58	  ADC module.
59
60	  If unsure, say N.
61
62config SH_STORE_QUEUES
63	bool "Support for Store Queues"
64	depends on CPU_SH4
65	help
66	  Selecting this option will enable an in-kernel API for manipulating
67	  the store queues integrated in the SH-4 processors.
68
69config SPECULATIVE_EXECUTION
70	bool "Speculative subroutine return"
71	depends on EXPERIMENTAL
72	depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7786
73	help
74	  This enables support for a speculative instruction fetch for
75	  subroutine return. There are various pitfalls associated with
76	  this, as outlined in the SH7780 hardware manual.
77
78	  If unsure, say N.
79
80config SH64_ID2815_WORKAROUND
81	bool "Include workaround for SH5-101 cut2 silicon defect ID2815"
82	depends on CPU_SUBTYPE_SH5_101
83
84config CPU_HAS_INTEVT
85	bool
86
87config CPU_HAS_IPR_IRQ
88	bool
89
90config CPU_HAS_SR_RB
91	bool
92	help
93	  This will enable the use of SR.RB register bank usage. Processors
94	  that are lacking this bit must have another method in place for
95	  accomplishing what is taken care of by the banked registers.
96
97	  See <file:Documentation/sh/register-banks.txt> for further
98	  information on SR.RB and register banking in the kernel in general.
99
100config CPU_HAS_PTEAEX
101	bool
102
103config CPU_HAS_DSP
104	bool
105
106config CPU_HAS_FPU
107	bool
108
109endmenu
110