| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 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" | 
| Paul Mundt | 64e34ca | 2008-02-12 16:48:43 +0900 | [diff] [blame] | 15 | depends on !CPU_SH5 | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 16 |  | 
|  | 17 | endchoice | 
|  | 18 |  | 
|  | 19 | config SH_FPU | 
| Harvey Harrison | d7ef4fb | 2007-12-11 13:49:35 +0900 | [diff] [blame] | 20 | def_bool y | 
|  | 21 | prompt "FPU support" | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 22 | depends on CPU_HAS_FPU | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 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 |  | 
| Paul Mundt | ea0e1a9 | 2007-11-21 15:58:01 +0900 | [diff] [blame] | 29 | config SH64_FPU_DENORM_FLUSH | 
|  | 30 | bool "Flush floating point denorms to zero" | 
|  | 31 | depends on SH_FPU && SUPERH64 | 
|  | 32 |  | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 33 | config SH_FPU_EMU | 
| Harvey Harrison | d7ef4fb | 2007-12-11 13:49:35 +0900 | [diff] [blame] | 34 | def_bool n | 
|  | 35 | prompt "FPU emulation support" | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 36 | depends on !SH_FPU && EXPERIMENTAL | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 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 | 
| Harvey Harrison | d7ef4fb | 2007-12-11 13:49:35 +0900 | [diff] [blame] | 43 | def_bool y | 
|  | 44 | prompt "DSP support" | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 45 | depends on CPU_HAS_DSP | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 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 | 
| Harvey Harrison | d7ef4fb | 2007-12-11 13:49:35 +0900 | [diff] [blame] | 53 | def_bool y | 
|  | 54 | prompt "ADC support" | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 55 | depends on CPU_SH3 | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 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" | 
| Matt Fleming | 8c563a30c | 2010-02-04 23:46:13 +0000 | [diff] [blame] | 71 | depends on EXPERIMENTAL | 
|  | 72 | depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7786 | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 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 |  | 
| Paul Mundt | ea0e1a9 | 2007-11-21 15:58:01 +0900 | [diff] [blame] | 80 | config SH64_ID2815_WORKAROUND | 
|  | 81 | bool "Include workaround for SH5-101 cut2 silicon defect ID2815" | 
|  | 82 | depends on CPU_SUBTYPE_SH5_101 | 
|  | 83 |  | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 84 | config CPU_HAS_INTEVT | 
|  | 85 | bool | 
|  | 86 |  | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 87 | config CPU_HAS_IPR_IRQ | 
|  | 88 | bool | 
|  | 89 |  | 
|  | 90 | config 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 |  | 
| Paul Mundt | 8263a67 | 2009-03-17 17:49:49 +0900 | [diff] [blame] | 100 | config CPU_HAS_PTEAEX | 
|  | 101 | bool | 
|  | 102 |  | 
| Paul Mundt | 4690bdc | 2007-11-09 13:45:42 +0900 | [diff] [blame] | 103 | config CPU_HAS_DSP | 
|  | 104 | bool | 
|  | 105 |  | 
|  | 106 | config CPU_HAS_FPU | 
|  | 107 | bool | 
|  | 108 |  | 
|  | 109 | endmenu |