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Linux/arch/arm/mach-at91/Kconfig

  1 if ARCH_AT91
  2 
  3 config HAVE_AT91_UTMI
  4         bool
  5 
  6 config HAVE_AT91_USB_CLK
  7         bool
  8 
  9 config HAVE_AT91_DBGU0
 10         bool
 11 
 12 config HAVE_AT91_DBGU1
 13         bool
 14 
 15 config AT91_USE_OLD_CLK
 16         bool
 17 
 18 config AT91_PMC_UNIT
 19         bool
 20         default !ARCH_AT91X40
 21 
 22 config COMMON_CLK_AT91
 23         bool
 24         default AT91_PMC_UNIT && USE_OF && !AT91_USE_OLD_CLK
 25         select COMMON_CLK
 26 
 27 config OLD_CLK_AT91
 28         bool
 29         default AT91_PMC_UNIT && AT91_USE_OLD_CLK
 30 
 31 config AT91_SAM9_ALT_RESET
 32         bool
 33         default !ARCH_AT91X40
 34 
 35 config AT91_SAM9G45_RESET
 36         bool
 37         default !ARCH_AT91X40
 38 
 39 config AT91_SAM9_TIME
 40         bool
 41 
 42 config HAVE_AT91_SMD
 43         bool
 44 
 45 config SOC_AT91SAM9
 46         bool
 47         select AT91_SAM9_TIME
 48         select CPU_ARM926T
 49         select GENERIC_CLOCKEVENTS
 50         select MULTI_IRQ_HANDLER
 51         select SPARSE_IRQ
 52 
 53 config SOC_SAMA5
 54         bool
 55         select AT91_SAM9_TIME
 56         select CPU_V7
 57         select GENERIC_CLOCKEVENTS
 58         select MULTI_IRQ_HANDLER
 59         select SPARSE_IRQ
 60         select USE_OF
 61 
 62 menu "Atmel AT91 System-on-Chip"
 63 
 64 choice
 65 
 66         prompt "Core type"
 67 
 68 config ARCH_AT91X40
 69         bool "ARM7 AT91X40"
 70         depends on !MMU
 71         select CPU_ARM7TDMI
 72         select ARCH_USES_GETTIMEOFFSET
 73         select MULTI_IRQ_HANDLER
 74         select SPARSE_IRQ
 75 
 76         help
 77           Select this if you are using one of Atmel's AT91X40 SoC.
 78 
 79 config SOC_SAM_V4_V5
 80         bool "ARM9 AT91SAM9/AT91RM9200"
 81         help
 82           Select this if you are using one of Atmel's AT91SAM9 or
 83           AT91RM9200 SoC.
 84 
 85 config SOC_SAM_V7
 86         bool "Cortex A5"
 87         help
 88           Select this if you are using one of Atmel's SAMA5D3 SoC.
 89 
 90 endchoice
 91 
 92 comment "Atmel AT91 Processor"
 93 
 94 if SOC_SAM_V7
 95 config SOC_SAMA5D3
 96         bool "SAMA5D3 family"
 97         select SOC_SAMA5
 98         select HAVE_FB_ATMEL
 99         select HAVE_AT91_DBGU1
100         select HAVE_AT91_UTMI
101         select HAVE_AT91_SMD
102         select HAVE_AT91_USB_CLK
103         help
104           Select this if you are using one of Atmel's SAMA5D3 family SoC.
105           This support covers SAMA5D31, SAMA5D33, SAMA5D34, SAMA5D35, SAMA5D36.
106 endif
107 
108 if SOC_SAM_V4_V5
109 config SOC_AT91RM9200
110         bool "AT91RM9200"
111         select CPU_ARM920T
112         select GENERIC_CLOCKEVENTS
113         select HAVE_AT91_DBGU0
114         select MULTI_IRQ_HANDLER
115         select SPARSE_IRQ
116         select HAVE_AT91_USB_CLK
117 
118 config SOC_AT91SAM9260
119         bool "AT91SAM9260, AT91SAM9XE or AT91SAM9G20"
120         select HAVE_AT91_DBGU0
121         select SOC_AT91SAM9
122         select HAVE_AT91_USB_CLK
123         help
124           Select this if you are using one of Atmel's AT91SAM9260, AT91SAM9XE
125           or AT91SAM9G20 SoC.
126 
127 config SOC_AT91SAM9261
128         bool "AT91SAM9261 or AT91SAM9G10"
129         select HAVE_AT91_DBGU0
130         select HAVE_FB_ATMEL
131         select SOC_AT91SAM9
132         select HAVE_AT91_USB_CLK
133         help
134           Select this if you are using one of Atmel's AT91SAM9261 or AT91SAM9G10 SoC.
135 
136 config SOC_AT91SAM9263
137         bool "AT91SAM9263"
138         select HAVE_AT91_DBGU1
139         select HAVE_FB_ATMEL
140         select SOC_AT91SAM9
141         select HAVE_AT91_USB_CLK
142 
143 config SOC_AT91SAM9RL
144         bool "AT91SAM9RL"
145         select HAVE_AT91_DBGU0
146         select HAVE_FB_ATMEL
147         select SOC_AT91SAM9
148         select HAVE_AT91_UTMI
149 
150 config SOC_AT91SAM9G45
151         bool "AT91SAM9G45 or AT91SAM9M10 families"
152         select HAVE_AT91_DBGU1
153         select HAVE_FB_ATMEL
154         select SOC_AT91SAM9
155         select HAVE_AT91_UTMI
156         select HAVE_AT91_USB_CLK
157         help
158           Select this if you are using one of Atmel's AT91SAM9G45 family SoC.
159           This support covers AT91SAM9G45, AT91SAM9G46, AT91SAM9M10 and AT91SAM9M11.
160 
161 config SOC_AT91SAM9X5
162         bool "AT91SAM9x5 family"
163         select HAVE_AT91_DBGU0
164         select HAVE_FB_ATMEL
165         select SOC_AT91SAM9
166         select HAVE_AT91_UTMI
167         select HAVE_AT91_SMD
168         select HAVE_AT91_USB_CLK
169         help
170           Select this if you are using one of Atmel's AT91SAM9x5 family SoC.
171           This means that your SAM9 name finishes with a '5' (except if it is
172           AT91SAM9G45!).
173           This support covers AT91SAM9G15, AT91SAM9G25, AT91SAM9X25, AT91SAM9G35
174           and AT91SAM9X35.
175 
176 config SOC_AT91SAM9N12
177         bool "AT91SAM9N12 family"
178         select HAVE_AT91_DBGU0
179         select HAVE_FB_ATMEL
180         select SOC_AT91SAM9
181         select HAVE_AT91_USB_CLK
182         help
183           Select this if you are using Atmel's AT91SAM9N12 SoC.
184 
185 # ----------------------------------------------------------
186 endif # SOC_SAM_V4_V5
187 
188 
189 if SOC_SAM_V4_V5 || ARCH_AT91X40
190 source arch/arm/mach-at91/Kconfig.non_dt
191 endif
192 
193 comment "Generic Board Type"
194 
195 config MACH_AT91RM9200_DT
196         bool "Atmel AT91RM9200 Evaluation Kits with device-tree support"
197         depends on SOC_AT91RM9200
198         select USE_OF
199         help
200           Select this if you want to experiment device-tree with
201           an Atmel RM9200 Evaluation Kit.
202 
203 config MACH_AT91SAM9_DT
204         bool "Atmel AT91SAM Evaluation Kits with device-tree support"
205         depends on SOC_AT91SAM9
206         select USE_OF
207         help
208           Select this if you want to experiment device-tree with
209           an Atmel Evaluation Kit.
210 
211 config MACH_SAMA5_DT
212         bool "Atmel SAMA5 Evaluation Kits with device-tree support"
213         depends on SOC_SAMA5
214         select USE_OF
215         select PHYLIB if NETDEVICES
216         help
217           Select this if you want to experiment device-tree with
218           an Atmel Evaluation Kit.
219 
220 # ----------------------------------------------------------
221 
222 comment "AT91 Feature Selections"
223 
224 config AT91_SLOW_CLOCK
225         bool "Suspend-to-RAM disables main oscillator"
226         depends on SUSPEND
227         help
228           Select this if you want Suspend-to-RAM to save the most power
229           possible (without powering off the CPU) by disabling the PLLs
230           and main oscillator so that only the 32 KiHz clock is available.
231 
232           When only that slow-clock is available, some peripherals lose
233           functionality.  Many can't issue wakeup events unless faster
234           clocks are available.  Some lose their operating state and
235           need to be completely re-initialized.
236 
237 config AT91_TIMER_HZ
238        int "Kernel HZ (jiffies per second)"
239        range 32 1024
240        depends on ARCH_AT91
241        default "128" if ARCH_AT91RM9200
242        default "100"
243        help
244           On AT91rm9200 chips where you're using a system clock derived
245           from the 32768 Hz hardware clock, this tick rate should divide
246           it exactly: use a power-of-two value, such as 128 or 256, to
247           reduce timing errors caused by rounding.
248 
249           On AT91sam926x chips, or otherwise when using a higher precision
250           system clock (of at least several MHz), rounding is less of a
251           problem so it can be safer to use a decimal values like 100.
252 
253 endmenu
254 
255 endif

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