projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 4690bdc7 PM |
1 | menu "Processor features" |
| 2 | ||
| 3 | choice | |
| 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 | ||
| 10 | config CPU_LITTLE_ENDIAN | |
| 11 | bool "Little Endian" | |
| 12 | ||
| 13 | config CPU_BIG_ENDIAN | |
| 14 | bool "Big Endian" | |
| 64e34ca9 | 15 | depends on !CPU_SH5 |
| 4690bdc7 PM |
16 | |
| 17 | endchoice | |
| 18 | ||
| 19 | config SH_FPU | |
| d7ef4fb3 HH |
20 | def_bool y |
| 21 | prompt "FPU support" | |
| 4690bdc7 | 22 | depends on CPU_HAS_FPU |
| 4690bdc7 PM |
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 | ||
| ea0e1a9a PM |
29 | config SH64_FPU_DENORM_FLUSH |
| 30 | bool "Flush floating point denorms to zero" | |
| 31 | depends on SH_FPU && SUPERH64 | |
| 32 | ||
| 4690bdc7 | 33 | config SH_FPU_EMU |
| d7ef4fb3 HH |
34 | def_bool n |
| 35 | prompt "FPU emulation support" | |
| 4690bdc7 | 36 | depends on !SH_FPU && EXPERIMENTAL |
| 4690bdc7 PM |
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 | ||
| 42 | config SH_DSP | |
| d7ef4fb3 HH |
43 | def_bool y |
| 44 | prompt "DSP support" | |
| 4690bdc7 | 45 | depends on CPU_HAS_DSP |
| 4690bdc7 PM |
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 | ||
| 52 | config SH_ADC | |
| d7ef4fb3 HH |
53 | def_bool y |
| 54 | prompt "ADC support" | |
| 4690bdc7 | 55 | depends on CPU_SH3 |
| 4690bdc7 PM |
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 | ||
| 62 | config 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 | ||
| 69 | config SPECULATIVE_EXECUTION | |
| 70 | bool "Speculative subroutine return" | |
| 71 | depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL | |
| 72 | help | |
| 73 | This enables support for a speculative instruction fetch for | |
| 74 | subroutine return. There are various pitfalls associated with | |
| 75 | this, as outlined in the SH7780 hardware manual. | |
| 76 | ||
| 77 | If unsure, say N. | |
| 78 | ||
| ea0e1a9a | 79 | config SH64_USER_MISALIGNED_FIXUP |
| d7ef4fb3 HH |
80 | def_bool y |
| 81 | prompt "Fixup misaligned loads/stores occurring in user mode" | |
| ea0e1a9a | 82 | depends on SUPERH64 |
| ea0e1a9a PM |
83 | |
| 84 | config SH64_ID2815_WORKAROUND | |
| 85 | bool "Include workaround for SH5-101 cut2 silicon defect ID2815" | |
| 86 | depends on CPU_SUBTYPE_SH5_101 | |
| 87 | ||
| 4690bdc7 PM |
88 | config CPU_HAS_INTEVT |
| 89 | bool | |
| 90 | ||
| 4690bdc7 PM |
91 | config CPU_HAS_IPR_IRQ |
| 92 | bool | |
| 93 | ||
| 94 | config CPU_HAS_SR_RB | |
| 95 | bool | |
| 96 | help | |
| 97 | This will enable the use of SR.RB register bank usage. Processors | |
| 98 | that are lacking this bit must have another method in place for | |
| 99 | accomplishing what is taken care of by the banked registers. | |
| 100 | ||
| 101 | See <file:Documentation/sh/register-banks.txt> for further | |
| 102 | information on SR.RB and register banking in the kernel in general. | |
| 103 | ||
| 104 | config CPU_HAS_PTEA | |
| 105 | bool | |
| 106 | ||
| 107 | config CPU_HAS_DSP | |
| 108 | bool | |
| 109 | ||
| 110 | config CPU_HAS_FPU | |
| 111 | bool | |
| 112 | ||
| 113 | endmenu |