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review.shift-gmbh.com / SHIFTPHONES / kernel / shift / mainline / d7950be145c84ca5094c52bc1ad1e7f1893d0f19 / . / arch / csky / Kconfig
blob: 6e814772d72e52bd069c9c27a8da22af7896cad1 [file] [log] [blame]
Guo Renc32e64e2018-09-05 14:25:06 +0800[diff] [blame]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
Guo Ren230c77a2018-12-09 14:29:59 +0800[diff] [blame]32 select HAVE_FUNCTION_TRACER
Guo Rend7950be2018-12-15 21:04:27 +0800[diff] [blame^]33 select HAVE_FUNCTION_GRAPH_TRACER
Guo Renc32e64e2018-09-05 14:25:06 +0800[diff] [blame]34 select HAVE_GENERIC_DMA_COHERENT
35 select HAVE_KERNEL_GZIP
36 select HAVE_KERNEL_LZO
37 select HAVE_KERNEL_LZMA
38 select HAVE_C_RECORDMCOUNT
39 select HAVE_DMA_API_DEBUG
40 select HAVE_DMA_CONTIGUOUS
Guo Renc32e64e2018-09-05 14:25:06 +0800[diff] [blame]41 select MAY_HAVE_SPARSE_IRQ
42 select MODULES_USE_ELF_RELA if MODULES
Guo Renc32e64e2018-09-05 14:25:06 +0800[diff] [blame]43 select OF
44 select OF_EARLY_FLATTREE
45 select OF_RESERVED_MEM
46 select PERF_USE_VMALLOC
47 select RTC_LIB
48 select TIMER_OF
49 select USB_ARCH_HAS_EHCI
50 select USB_ARCH_HAS_OHCI
51
52config CPU_HAS_CACHEV2
53 bool
54
55config CPU_HAS_FPUV2
56 bool
57
58config CPU_HAS_HILO
59 bool
60
61config CPU_HAS_TLBI
62 bool
63
64config CPU_HAS_LDSTEX
65 bool
66 help
67 For SMP, CPU needs "ldex&stex" instrcutions to atomic operations.
68
69config CPU_NEED_TLBSYNC
70 bool
71
72config CPU_NEED_SOFTALIGN
73 bool
74
75config CPU_NO_USER_BKPT
76 bool
77 help
78 For abiv2 we couldn't use "trap 1" as user space bkpt in gdbserver, because
79 abiv2 is 16/32bit instruction set and "trap 1" is 32bit.
80 So we need a 16bit instruction as user space bkpt, and it will cause an illegal
81 instruction exception.
82 In kernel we parse the *regs->pc to determine whether to send SIGTRAP or not.
83
84config GENERIC_CALIBRATE_DELAY
85 def_bool y
86
87config GENERIC_CSUM
88 def_bool y
89
90config GENERIC_HWEIGHT
91 def_bool y
92
93config MMU
94 def_bool y
95
96config RWSEM_GENERIC_SPINLOCK
97 def_bool y
98
Guo Ren0ea2dc72018-12-09 14:18:05 +0800[diff] [blame]99config STACKTRACE_SUPPORT
100 def_bool y
101
Guo Renc32e64e2018-09-05 14:25:06 +0800[diff] [blame]102config TIME_LOW_RES
103 def_bool y
104
105config TRACE_IRQFLAGS_SUPPORT
106 def_bool y
107
108config CPU_TLB_SIZE
109 int
110 default "128" if (CPU_CK610 || CPU_CK807 || CPU_CK810)
111 default "1024" if (CPU_CK860)
112
113config CPU_ASID_BITS
114 int
115 default "8" if (CPU_CK610 || CPU_CK807 || CPU_CK810)
116 default "12" if (CPU_CK860)
117
118config L1_CACHE_SHIFT
119 int
120 default "4" if (CPU_CK610)
121 default "5" if (CPU_CK807 || CPU_CK810)
122 default "6" if (CPU_CK860)
123
124menu "Processor type and features"
125
126choice
127 prompt "CPU MODEL"
128 default CPU_CK807
129
130config CPU_CK610
131 bool "CSKY CPU ck610"
132 select CPU_NEED_TLBSYNC
133 select CPU_NEED_SOFTALIGN
134 select CPU_NO_USER_BKPT
135
136config CPU_CK810
137 bool "CSKY CPU ck810"
138 select CPU_HAS_HILO
139 select CPU_NEED_TLBSYNC
140
141config CPU_CK807
142 bool "CSKY CPU ck807"
143 select CPU_HAS_HILO
144
145config CPU_CK860
146 bool "CSKY CPU ck860"
147 select CPU_HAS_TLBI
148 select CPU_HAS_CACHEV2
149 select CPU_HAS_LDSTEX
150 select CPU_HAS_FPUV2
151endchoice
152
153choice
154 prompt "Power Manager Instruction (wait/doze/stop)"
155 default CPU_PM_NONE
156
157config CPU_PM_NONE
158 bool "None"
159
160config CPU_PM_WAIT
161 bool "wait"
162
163config CPU_PM_DOZE
164 bool "doze"
165
166config CPU_PM_STOP
167 bool "stop"
168endchoice
169
170config CPU_HAS_VDSP
171 bool "CPU has VDSP coprocessor"
172 depends on CPU_HAS_FPU && CPU_HAS_FPUV2
173
174config CPU_HAS_FPU
175 bool "CPU has FPU coprocessor"
176 depends on CPU_CK807 || CPU_CK810 || CPU_CK860
177
178config CPU_HAS_TEE
179 bool "CPU has Trusted Execution Environment"
180 depends on CPU_CK810
181
182config SMP
183 bool "Symmetric Multi-Processing (SMP) support for C-SKY"
184 depends on CPU_CK860
185 default n
186
187config NR_CPUS
188 int "Maximum number of CPUs (2-32)"
189 range 2 32
190 depends on SMP
191 default "2"
192
193config HIGHMEM
194 bool "High Memory Support"
195 depends on !CPU_CK610
196 default y
197
198config FORCE_MAX_ZONEORDER
199 int "Maximum zone order"
200 default "11"
201
202config RAM_BASE
203 hex "DRAM start addr (the same with memory-section in dts)"
204 default 0x0
205
Guo Ren859e5f42018-12-19 19:56:14 +0800[diff] [blame]206config HOTPLUG_CPU
207 bool "Support for hot-pluggable CPUs"
208 select GENERIC_IRQ_MIGRATION
209 depends on SMP
210 help
211 Say Y here to allow turning CPUs off and on. CPUs can be
212 controlled through /sys/devices/system/cpu/cpu1/hotplug/target.
213
214 Say N if you want to disable CPU hotplug.
Guo Renc32e64e2018-09-05 14:25:06 +0800[diff] [blame]215endmenu
216
217source "kernel/Kconfig.hz"