68b9b8fd9f85f66e0cd0ddef52b3ad47fd747c79
[deliverable/linux.git] / arch / powerpc / platforms / Kconfig
1 menu "Platform support"
2
3 source "arch/powerpc/platforms/pseries/Kconfig"
4 source "arch/powerpc/platforms/iseries/Kconfig"
5 source "arch/powerpc/platforms/chrp/Kconfig"
6 source "arch/powerpc/platforms/512x/Kconfig"
7 source "arch/powerpc/platforms/52xx/Kconfig"
8 source "arch/powerpc/platforms/powermac/Kconfig"
9 source "arch/powerpc/platforms/prep/Kconfig"
10 source "arch/powerpc/platforms/maple/Kconfig"
11 source "arch/powerpc/platforms/pasemi/Kconfig"
12 source "arch/powerpc/platforms/ps3/Kconfig"
13 source "arch/powerpc/platforms/cell/Kconfig"
14 source "arch/powerpc/platforms/8xx/Kconfig"
15 source "arch/powerpc/platforms/82xx/Kconfig"
16 source "arch/powerpc/platforms/83xx/Kconfig"
17 source "arch/powerpc/platforms/85xx/Kconfig"
18 source "arch/powerpc/platforms/86xx/Kconfig"
19 source "arch/powerpc/platforms/embedded6xx/Kconfig"
20 source "arch/powerpc/platforms/44x/Kconfig"
21 source "arch/powerpc/platforms/40x/Kconfig"
22 source "arch/powerpc/platforms/amigaone/Kconfig"
23
24 config PPC_NATIVE
25 bool
26 depends on 6xx || PPC64
27 help
28 Support for running natively on the hardware, i.e. without
29 a hypervisor. This option is not user-selectable but should
30 be selected by all platforms that need it.
31
32 config PPC_OF_BOOT_TRAMPOLINE
33 bool "Support booting from Open Firmware or yaboot"
34 depends on 6xx || PPC64
35 default y
36 help
37 Support from booting from Open Firmware or yaboot using an
38 Open Firmware client interface. This enables the kernel to
39 communicate with open firmware to retrieve system informations
40 such as the device tree.
41
42 In case of doubt, say Y
43
44 config UDBG_RTAS_CONSOLE
45 bool "RTAS based debug console"
46 depends on PPC_RTAS
47 default n
48
49 config PPC_UDBG_BEAT
50 bool "BEAT based debug console"
51 depends on PPC_CELLEB
52 default n
53
54 config XICS
55 depends on PPC_PSERIES
56 bool
57 default y
58
59 config IPIC
60 bool
61 default n
62
63 config MPIC
64 bool
65 default n
66
67 config MPIC_WEIRD
68 bool
69 default n
70
71 config PPC_I8259
72 bool
73 default n
74
75 config U3_DART
76 bool
77 depends on PPC64
78 default n
79
80 config PPC_RTAS
81 bool
82 default n
83
84 config RTAS_ERROR_LOGGING
85 bool
86 depends on PPC_RTAS
87 default n
88
89 config RTAS_PROC
90 bool "Proc interface to RTAS"
91 depends on PPC_RTAS
92 default y
93
94 config RTAS_FLASH
95 tristate "Firmware flash interface"
96 depends on PPC64 && RTAS_PROC
97
98 config MMIO_NVRAM
99 bool
100 default n
101
102 config MPIC_U3_HT_IRQS
103 bool
104 depends on PPC_MAPLE
105 default y
106
107 config MPIC_BROKEN_REGREAD
108 bool
109 depends on MPIC
110 help
111 This option enables a MPIC driver workaround for some chips
112 that have a bug that causes some interrupt source information
113 to not read back properly. It is safe to use on other chips as
114 well, but enabling it uses about 8KB of memory to keep copies
115 of the register contents in software.
116
117 config IBMVIO
118 depends on PPC_PSERIES || PPC_ISERIES
119 bool
120 default y
121
122 config IBMEBUS
123 depends on PPC_PSERIES
124 bool "Support for GX bus based adapters"
125 help
126 Bus device driver for GX bus based adapters.
127
128 config PPC_MPC106
129 bool
130 default n
131
132 config PPC_970_NAP
133 bool
134 default n
135
136 config PPC_INDIRECT_IO
137 bool
138 select GENERIC_IOMAP
139 default n
140
141 config GENERIC_IOMAP
142 bool
143 default n
144
145 source "drivers/cpufreq/Kconfig"
146
147 menu "CPU Frequency drivers"
148 depends on CPU_FREQ
149
150 config CPU_FREQ_PMAC
151 bool "Support for Apple PowerBooks"
152 depends on ADB_PMU && PPC32
153 select CPU_FREQ_TABLE
154 help
155 This adds support for frequency switching on Apple PowerBooks,
156 this currently includes some models of iBook & Titanium
157 PowerBook.
158
159 config CPU_FREQ_PMAC64
160 bool "Support for some Apple G5s"
161 depends on PPC_PMAC && PPC64
162 select CPU_FREQ_TABLE
163 help
164 This adds support for frequency switching on Apple iMac G5,
165 and some of the more recent desktop G5 machines as well.
166
167 config PPC_PASEMI_CPUFREQ
168 bool "Support for PA Semi PWRficient"
169 depends on PPC_PASEMI
170 default y
171 select CPU_FREQ_TABLE
172 help
173 This adds the support for frequency switching on PA Semi
174 PWRficient processors.
175
176 endmenu
177
178 config PPC601_SYNC_FIX
179 bool "Workarounds for PPC601 bugs"
180 depends on 6xx && (PPC_PREP || PPC_PMAC)
181 help
182 Some versions of the PPC601 (the first PowerPC chip) have bugs which
183 mean that extra synchronization instructions are required near
184 certain instructions, typically those that make major changes to the
185 CPU state. These extra instructions reduce performance slightly.
186 If you say N here, these extra instructions will not be included,
187 resulting in a kernel which will run faster but may not run at all
188 on some systems with the PPC601 chip.
189
190 If in doubt, say Y here.
191
192 config TAU
193 bool "On-chip CPU temperature sensor support"
194 depends on 6xx
195 help
196 G3 and G4 processors have an on-chip temperature sensor called the
197 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
198 temperature within 2-4 degrees Celsius. This option shows the current
199 on-die temperature in /proc/cpuinfo if the cpu supports it.
200
201 Unfortunately, on some chip revisions, this sensor is very inaccurate
202 and in many cases, does not work at all, so don't assume the cpu
203 temp is actually what /proc/cpuinfo says it is.
204
205 config TAU_INT
206 bool "Interrupt driven TAU driver (DANGEROUS)"
207 depends on TAU
208 ---help---
209 The TAU supports an interrupt driven mode which causes an interrupt
210 whenever the temperature goes out of range. This is the fastest way
211 to get notified the temp has exceeded a range. With this option off,
212 a timer is used to re-check the temperature periodically.
213
214 However, on some cpus it appears that the TAU interrupt hardware
215 is buggy and can cause a situation which would lead unexplained hard
216 lockups.
217
218 Unless you are extending the TAU driver, or enjoy kernel/hardware
219 debugging, leave this option off.
220
221 config TAU_AVERAGE
222 bool "Average high and low temp"
223 depends on TAU
224 ---help---
225 The TAU hardware can compare the temperature to an upper and lower
226 bound. The default behavior is to show both the upper and lower
227 bound in /proc/cpuinfo. If the range is large, the temperature is
228 either changing a lot, or the TAU hardware is broken (likely on some
229 G4's). If the range is small (around 4 degrees), the temperature is
230 relatively stable. If you say Y here, a single temperature value,
231 halfway between the upper and lower bounds, will be reported in
232 /proc/cpuinfo.
233
234 If in doubt, say N here.
235
236 config QUICC_ENGINE
237 bool "Freescale QUICC Engine (QE) Support"
238 depends on FSL_SOC
239 select PPC_LIB_RHEAP
240 select CRC32
241 help
242 The QUICC Engine (QE) is a new generation of communications
243 coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
244 Selecting this option means that you wish to build a kernel
245 for a machine with a QE coprocessor.
246
247 config QE_GPIO
248 bool "QE GPIO support"
249 depends on QUICC_ENGINE
250 select GENERIC_GPIO
251 select ARCH_REQUIRE_GPIOLIB
252 help
253 Say Y here if you're going to use hardware that connects to the
254 QE GPIOs.
255
256 config CPM2
257 bool "Enable support for the CPM2 (Communications Processor Module)"
258 depends on MPC85xx || 8260
259 select CPM
260 select PPC_LIB_RHEAP
261 select PPC_PCI_CHOICE
262 select ARCH_REQUIRE_GPIOLIB
263 select GENERIC_GPIO
264 help
265 The CPM2 (Communications Processor Module) is a coprocessor on
266 embedded CPUs made by Freescale. Selecting this option means that
267 you wish to build a kernel for a machine with a CPM2 coprocessor
268 on it (826x, 827x, 8560).
269
270 config AXON_RAM
271 tristate "Axon DDR2 memory device driver"
272 depends on PPC_IBM_CELL_BLADE
273 default m
274 help
275 It registers one block device per Axon's DDR2 memory bank found
276 on a system. Block devices are called axonram?, their major and
277 minor numbers are available in /proc/devices, /proc/partitions or
278 in /sys/block/axonram?/dev.
279
280 config FSL_ULI1575
281 bool
282 default n
283 select GENERIC_ISA_DMA
284 help
285 Supports for the ULI1575 PCIe south bridge that exists on some
286 Freescale reference boards. The boards all use the ULI in pretty
287 much the same way.
288
289 config CPM
290 bool
291 select PPC_CLOCK
292
293 config OF_RTC
294 bool
295 help
296 Uses information from the OF or flattened device tree to instatiate
297 platform devices for direct mapped RTC chips like the DS1742 or DS1743.
298
299 source "arch/powerpc/sysdev/bestcomm/Kconfig"
300
301 config MPC8xxx_GPIO
302 bool "MPC8xxx GPIO support"
303 depends on PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || PPC_85xx || PPC_86xx
304 select GENERIC_GPIO
305 select ARCH_REQUIRE_GPIOLIB
306 help
307 Say Y here if you're going to use hardware that connects to the
308 MPC831x/834x/837x/8572/8610 GPIOs.
309
310 config SIMPLE_GPIO
311 bool "Support for simple, memory-mapped GPIO controllers"
312 depends on PPC
313 select GENERIC_GPIO
314 select ARCH_REQUIRE_GPIOLIB
315 help
316 Say Y here to support simple, memory-mapped GPIO controllers.
317 These are usually BCSRs used to control board's switches, LEDs,
318 chip-selects, Ethernet/USB PHY's power and various other small
319 on-board peripherals.
320
321 config MCU_MPC8349EMITX
322 tristate "MPC8349E-mITX MCU driver"
323 depends on I2C && PPC_83xx
324 select GENERIC_GPIO
325 select ARCH_REQUIRE_GPIOLIB
326 help
327 Say Y here to enable soft power-off functionality on the Freescale
328 boards with the MPC8349E-mITX-compatible MCU chips. This driver will
329 also register MCU GPIOs with the generic GPIO API, so you'll able
330 to use MCU pins as GPIOs.
331
332 endmenu
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