1config CSKY 2 def_bool y 3 select ARCH_HAS_SYNC_DMA_FOR_CPU 4 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 5 select ARCH_USE_BUILTIN_BSWAP 6 select ARCH_USE_QUEUED_RWLOCKS if NR_CPUS>2 7 select COMMON_CLK 8 select CLKSRC_MMIO 9 select CLKSRC_OF 10 select DMA_DIRECT_OPS 11 select DMA_NONCOHERENT_OPS 12 select IRQ_DOMAIN 13 select HANDLE_DOMAIN_IRQ 14 select DW_APB_TIMER_OF 15 select GENERIC_LIB_ASHLDI3 16 select GENERIC_LIB_ASHRDI3 17 select GENERIC_LIB_LSHRDI3 18 select GENERIC_LIB_MULDI3 19 select GENERIC_LIB_CMPDI2 20 select GENERIC_LIB_UCMPDI2 21 select GENERIC_ALLOCATOR 22 select GENERIC_ATOMIC64 23 select GENERIC_CLOCKEVENTS 24 select GENERIC_CPU_DEVICES 25 select GENERIC_IRQ_CHIP 26 select GENERIC_IRQ_PROBE 27 select GENERIC_IRQ_SHOW 28 select GENERIC_IRQ_MULTI_HANDLER 29 select GENERIC_SCHED_CLOCK 30 select GENERIC_SMP_IDLE_THREAD 31 select HAVE_ARCH_TRACEHOOK 32 select HAVE_GENERIC_DMA_COHERENT 33 select HAVE_KERNEL_GZIP 34 select HAVE_KERNEL_LZO 35 select HAVE_KERNEL_LZMA 36 select HAVE_C_RECORDMCOUNT 37 select HAVE_DMA_API_DEBUG 38 select HAVE_DMA_CONTIGUOUS 39 select MAY_HAVE_SPARSE_IRQ 40 select MODULES_USE_ELF_RELA if MODULES 41 select OF 42 select OF_EARLY_FLATTREE 43 select OF_RESERVED_MEM 44 select PERF_USE_VMALLOC 45 select RTC_LIB 46 select TIMER_OF 47 select USB_ARCH_HAS_EHCI 48 select USB_ARCH_HAS_OHCI 49 50config CPU_HAS_CACHEV2 51 bool 52 53config CPU_HAS_FPUV2 54 bool 55 56config CPU_HAS_HILO 57 bool 58 59config CPU_HAS_TLBI 60 bool 61 62config CPU_HAS_LDSTEX 63 bool 64 help 65 For SMP, CPU needs "ldex&stex" instrcutions to atomic operations. 66 67config CPU_NEED_TLBSYNC 68 bool 69 70config CPU_NEED_SOFTALIGN 71 bool 72 73config CPU_NO_USER_BKPT 74 bool 75 help 76 For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because 77 abiv2 is 16/32bit instruction set and "trap 1" is 32bit. 78 So we need a 16bit instruction as user space bkpt, and it will cause an illegal 79 instruction exception. 80 In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not. 81 82config GENERIC_CALIBRATE_DELAY 83 def_bool y 84 85config GENERIC_CSUM 86 def_bool y 87 88config GENERIC_HWEIGHT 89 def_bool y 90 91config MMU 92 def_bool y 93 94config RWSEM_GENERIC_SPINLOCK 95 def_bool y 96 97config TIME_LOW_RES 98 def_bool y 99 100config TRACE_IRQFLAGS_SUPPORT 101 def_bool y 102 103config CPU_TLB_SIZE 104 int 105 default "128" if (CPU_CK610 || CPU_CK807 || CPU_CK810) 106 default "1024" if (CPU_CK860) 107 108config CPU_ASID_BITS 109 int 110 default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810) 111 default "12" if (CPU_CK860) 112 113config L1_CACHE_SHIFT 114 int 115 default "4" if (CPU_CK610) 116 default "5" if (CPU_CK807 || CPU_CK810) 117 default "6" if (CPU_CK860) 118 119menu "Processor type and features" 120 121choice 122 prompt "CPU MODEL" 123 default CPU_CK807 124 125config CPU_CK610 126 bool "CSKY CPU ck610" 127 select CPU_NEED_TLBSYNC 128 select CPU_NEED_SOFTALIGN 129 select CPU_NO_USER_BKPT 130 131config CPU_CK810 132 bool "CSKY CPU ck810" 133 select CPU_HAS_HILO 134 select CPU_NEED_TLBSYNC 135 136config CPU_CK807 137 bool "CSKY CPU ck807" 138 select CPU_HAS_HILO 139 140config CPU_CK860 141 bool "CSKY CPU ck860" 142 select CPU_HAS_TLBI 143 select CPU_HAS_CACHEV2 144 select CPU_HAS_LDSTEX 145 select CPU_HAS_FPUV2 146endchoice 147 148choice 149 prompt "Power Manager Instruction (wait/doze/stop)" 150 default CPU_PM_NONE 151 152config CPU_PM_NONE 153 bool "None" 154 155config CPU_PM_WAIT 156 bool "wait" 157 158config CPU_PM_DOZE 159 bool "doze" 160 161config CPU_PM_STOP 162 bool "stop" 163endchoice 164 165config CPU_HAS_VDSP 166 bool "CPU has VDSP coprocessor" 167 depends on CPU_HAS_FPU && CPU_HAS_FPUV2 168 169config CPU_HAS_FPU 170 bool "CPU has FPU coprocessor" 171 depends on CPU_CK807 || CPU_CK810 || CPU_CK860 172 173config CPU_HAS_TEE 174 bool "CPU has Trusted Execution Environment" 175 depends on CPU_CK810 176 177config SMP 178 bool "Symmetric Multi-Processing (SMP) support for C-SKY" 179 depends on CPU_CK860 180 default n 181 182config NR_CPUS 183 int "Maximum number of CPUs (2-32)" 184 range 2 32 185 depends on SMP 186 default "2" 187 188config HIGHMEM 189 bool "High Memory Support" 190 depends on !CPU_CK610 191 default y 192 193config FORCE_MAX_ZONEORDER 194 int "Maximum zone order" 195 default "11" 196 197config RAM_BASE 198 hex "DRAM start addr (the same with memory-section in dts)" 199 default 0x0 200 201endmenu 202 203source "kernel/Kconfig.hz" 204