xref: /openbmc/linux/arch/powerpc/platforms/Kconfig (revision 293d5b43) 
1menu "Platform support"
2
3source "arch/powerpc/platforms/powernv/Kconfig"
4source "arch/powerpc/platforms/pseries/Kconfig"
5source "arch/powerpc/platforms/chrp/Kconfig"
6source "arch/powerpc/platforms/512x/Kconfig"
7source "arch/powerpc/platforms/52xx/Kconfig"
8source "arch/powerpc/platforms/powermac/Kconfig"
9source "arch/powerpc/platforms/maple/Kconfig"
10source "arch/powerpc/platforms/pasemi/Kconfig"
11source "arch/powerpc/platforms/ps3/Kconfig"
12source "arch/powerpc/platforms/cell/Kconfig"
13source "arch/powerpc/platforms/8xx/Kconfig"
14source "arch/powerpc/platforms/82xx/Kconfig"
15source "arch/powerpc/platforms/83xx/Kconfig"
16source "arch/powerpc/platforms/85xx/Kconfig"
17source "arch/powerpc/platforms/86xx/Kconfig"
18source "arch/powerpc/platforms/embedded6xx/Kconfig"
19source "arch/powerpc/platforms/44x/Kconfig"
20source "arch/powerpc/platforms/40x/Kconfig"
21source "arch/powerpc/platforms/amigaone/Kconfig"
22
23config KVM_GUEST
24	bool "KVM Guest support"
25	default n
26	select EPAPR_PARAVIRT
27	---help---
28	  This option enables various optimizations for running under the KVM
29	  hypervisor. Overhead for the kernel when not running inside KVM should
30	  be minimal.
31
32	  In case of doubt, say Y
33
34config EPAPR_PARAVIRT
35	bool "ePAPR para-virtualization support"
36	default n
37	help
38	  Enables ePAPR para-virtualization support for guests.
39
40	  In case of doubt, say Y
41
42config PPC_NATIVE
43	bool
44	depends on 6xx || PPC64
45	help
46	  Support for running natively on the hardware, i.e. without
47	  a hypervisor. This option is not user-selectable but should
48	  be selected by all platforms that need it.
49
50config PPC_OF_BOOT_TRAMPOLINE
51	bool "Support booting from Open Firmware or yaboot"
52	depends on 6xx || PPC64
53	default y
54	help
55	  Support from booting from Open Firmware or yaboot using an
56	  Open Firmware client interface. This enables the kernel to
57	  communicate with open firmware to retrieve system information
58	  such as the device tree.
59
60	  In case of doubt, say Y
61
62config UDBG_RTAS_CONSOLE
63	bool "RTAS based debug console"
64	depends on PPC_RTAS
65	default n
66
67config PPC_SMP_MUXED_IPI
68	bool
69	help
70	  Select this opton if your platform supports SMP and your
71	  interrupt controller provides less than 4 interrupts to each
72	  cpu.	This will enable the generic code to multiplex the 4
73	  messages on to one ipi.
74
75config IPIC
76	bool
77	default n
78
79config MPIC
80	bool
81	default n
82
83config MPIC_TIMER
84	bool "MPIC Global Timer"
85	depends on MPIC && FSL_SOC
86	default n
87	help
88	  The MPIC global timer is a hardware timer inside the
89	  Freescale PIC complying with OpenPIC standard. When the
90	  specified interval times out, the hardware timer generates
91	  an interrupt. The driver currently is only tested on fsl
92	  chip, but it can potentially support other global timers
93	  complying with the OpenPIC standard.
94
95config FSL_MPIC_TIMER_WAKEUP
96	tristate "Freescale MPIC global timer wakeup driver"
97	depends on FSL_SOC &&  MPIC_TIMER && PM
98	default n
99	help
100	  The driver provides a way to wake up the system by MPIC
101	  timer.
102	  e.g. "echo 5 > /sys/devices/system/mpic/timer_wakeup"
103
104config PPC_EPAPR_HV_PIC
105	bool
106	default n
107	select EPAPR_PARAVIRT
108
109config MPIC_WEIRD
110	bool
111	default n
112
113config MPIC_MSGR
114	bool "MPIC message register support"
115	depends on MPIC
116	default n
117	help
118	  Enables support for the MPIC message registers.  These
119	  registers are used for inter-processor communication.
120
121config PPC_I8259
122	bool
123	default n
124
125config U3_DART
126	bool
127	depends on PPC64
128	default n
129
130config PPC_RTAS
131	bool
132	default n
133
134config RTAS_ERROR_LOGGING
135	bool
136	depends on PPC_RTAS
137	default n
138
139config PPC_RTAS_DAEMON
140	bool
141	depends on PPC_RTAS
142	default n
143
144config RTAS_PROC
145	bool "Proc interface to RTAS"
146	depends on PPC_RTAS && PROC_FS
147	default y
148
149config RTAS_FLASH
150	tristate "Firmware flash interface"
151	depends on PPC64 && RTAS_PROC
152
153config MMIO_NVRAM
154	bool
155	default n
156
157config MPIC_U3_HT_IRQS
158	bool
159	default n
160
161config MPIC_BROKEN_REGREAD
162	bool
163	depends on MPIC
164	help
165	  This option enables a MPIC driver workaround for some chips
166	  that have a bug that causes some interrupt source information
167	  to not read back properly. It is safe to use on other chips as
168	  well, but enabling it uses about 8KB of memory to keep copies
169	  of the register contents in software.
170
171config IBMVIO
172	depends on PPC_PSERIES
173	bool
174	default y
175
176config IBMEBUS
177	depends on PPC_PSERIES
178	bool "Support for GX bus based adapters"
179	help
180	  Bus device driver for GX bus based adapters.
181
182config EEH
183	bool
184	depends on (PPC_POWERNV || PPC_PSERIES) && PCI
185	default y
186
187config PPC_MPC106
188	bool
189	default n
190
191config PPC_970_NAP
192	bool
193	default n
194
195config PPC_P7_NAP
196	bool
197	default n
198
199config PPC_INDIRECT_PIO
200	bool
201	select GENERIC_IOMAP
202
203config PPC_INDIRECT_MMIO
204	bool
205
206config PPC_IO_WORKAROUNDS
207	bool
208
209source "drivers/cpufreq/Kconfig"
210
211menu "CPUIdle driver"
212
213source "drivers/cpuidle/Kconfig"
214
215endmenu
216
217config PPC601_SYNC_FIX
218	bool "Workarounds for PPC601 bugs"
219	depends on 6xx && PPC_PMAC
220	help
221	  Some versions of the PPC601 (the first PowerPC chip) have bugs which
222	  mean that extra synchronization instructions are required near
223	  certain instructions, typically those that make major changes to the
224	  CPU state.  These extra instructions reduce performance slightly.
225	  If you say N here, these extra instructions will not be included,
226	  resulting in a kernel which will run faster but may not run at all
227	  on some systems with the PPC601 chip.
228
229	  If in doubt, say Y here.
230
231config TAU
232	bool "On-chip CPU temperature sensor support"
233	depends on 6xx
234	help
235	  G3 and G4 processors have an on-chip temperature sensor called the
236	  'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
237	  temperature within 2-4 degrees Celsius. This option shows the current
238	  on-die temperature in /proc/cpuinfo if the cpu supports it.
239
240	  Unfortunately, on some chip revisions, this sensor is very inaccurate
241	  and in many cases, does not work at all, so don't assume the cpu
242	  temp is actually what /proc/cpuinfo says it is.
243
244config TAU_INT
245	bool "Interrupt driven TAU driver (DANGEROUS)"
246	depends on TAU
247	---help---
248	  The TAU supports an interrupt driven mode which causes an interrupt
249	  whenever the temperature goes out of range. This is the fastest way
250	  to get notified the temp has exceeded a range. With this option off,
251	  a timer is used to re-check the temperature periodically.
252
253	  However, on some cpus it appears that the TAU interrupt hardware
254	  is buggy and can cause a situation which would lead unexplained hard
255	  lockups.
256
257	  Unless you are extending the TAU driver, or enjoy kernel/hardware
258	  debugging, leave this option off.
259
260config TAU_AVERAGE
261	bool "Average high and low temp"
262	depends on TAU
263	---help---
264	  The TAU hardware can compare the temperature to an upper and lower
265	  bound.  The default behavior is to show both the upper and lower
266	  bound in /proc/cpuinfo. If the range is large, the temperature is
267	  either changing a lot, or the TAU hardware is broken (likely on some
268	  G4's). If the range is small (around 4 degrees), the temperature is
269	  relatively stable.  If you say Y here, a single temperature value,
270	  halfway between the upper and lower bounds, will be reported in
271	  /proc/cpuinfo.
272
273	  If in doubt, say N here.
274
275config QE_GPIO
276	bool "QE GPIO support"
277	depends on QUICC_ENGINE
278	select GPIOLIB
279	help
280	  Say Y here if you're going to use hardware that connects to the
281	  QE GPIOs.
282
283config CPM2
284	bool "Enable support for the CPM2 (Communications Processor Module)"
285	depends on (FSL_SOC_BOOKE && PPC32) || 8260
286	select CPM
287	select PPC_PCI_CHOICE
288	select GPIOLIB
289	help
290	  The CPM2 (Communications Processor Module) is a coprocessor on
291	  embedded CPUs made by Freescale.  Selecting this option means that
292	  you wish to build a kernel for a machine with a CPM2 coprocessor
293	  on it (826x, 827x, 8560).
294
295config AXON_RAM
296	tristate "Axon DDR2 memory device driver"
297	depends on PPC_IBM_CELL_BLADE && BLOCK
298	default m
299	help
300	  It registers one block device per Axon's DDR2 memory bank found
301	  on a system. Block devices are called axonram?, their major and
302	  minor numbers are available in /proc/devices, /proc/partitions or
303	  in /sys/block/axonram?/dev.
304
305config FSL_ULI1575
306	bool
307	default n
308	select GENERIC_ISA_DMA
309	help
310	  Supports for the ULI1575 PCIe south bridge that exists on some
311	  Freescale reference boards. The boards all use the ULI in pretty
312	  much the same way.
313
314config CPM
315	bool
316	select GENERIC_ALLOCATOR
317
318config OF_RTC
319	bool
320	help
321	  Uses information from the OF or flattened device tree to instantiate
322	  platform devices for direct mapped RTC chips like the DS1742 or DS1743.
323
324config GEN_RTC
325	bool "Use the platform RTC operations from user space"
326	select RTC_CLASS
327	select RTC_DRV_GENERIC
328	help
329	  This option provides backwards compatibility with the old gen_rtc.ko
330	  module that was traditionally used for old PowerPC machines.
331	  Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
332	  replacing their get_rtc_time/set_rtc_time callbacks with
333	  a proper RTC device driver.
334
335config SIMPLE_GPIO
336	bool "Support for simple, memory-mapped GPIO controllers"
337	depends on PPC
338	select GPIOLIB
339	help
340	  Say Y here to support simple, memory-mapped GPIO controllers.
341	  These are usually BCSRs used to control board's switches, LEDs,
342	  chip-selects, Ethernet/USB PHY's power and various other small
343	  on-board peripherals.
344
345config MCU_MPC8349EMITX
346	bool "MPC8349E-mITX MCU driver"
347	depends on I2C=y && PPC_83xx
348	select GPIOLIB
349	help
350	  Say Y here to enable soft power-off functionality on the Freescale
351	  boards with the MPC8349E-mITX-compatible MCU chips. This driver will
352	  also register MCU GPIOs with the generic GPIO API, so you'll able
353	  to use MCU pins as GPIOs.
354
355config XILINX_PCI
356	bool "Xilinx PCI host bridge support"
357	depends on PCI && XILINX_VIRTEX
358
359endmenu
360