| 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 |