tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2menu "Platform support"
3
4source "arch/powerpc/platforms/powernv/Kconfig"
5source "arch/powerpc/platforms/pseries/Kconfig"
6source "arch/powerpc/platforms/chrp/Kconfig"
7source "arch/powerpc/platforms/512x/Kconfig"
8source "arch/powerpc/platforms/52xx/Kconfig"
9source "arch/powerpc/platforms/powermac/Kconfig"
10source "arch/powerpc/platforms/maple/Kconfig"
11source "arch/powerpc/platforms/pasemi/Kconfig"
12source "arch/powerpc/platforms/ps3/Kconfig"
13source "arch/powerpc/platforms/cell/Kconfig"
14source "arch/powerpc/platforms/8xx/Kconfig"
15source "arch/powerpc/platforms/82xx/Kconfig"
16source "arch/powerpc/platforms/83xx/Kconfig"
17source "arch/powerpc/platforms/85xx/Kconfig"
18source "arch/powerpc/platforms/86xx/Kconfig"
19source "arch/powerpc/platforms/embedded6xx/Kconfig"
20source "arch/powerpc/platforms/44x/Kconfig"
21source "arch/powerpc/platforms/40x/Kconfig"
22source "arch/powerpc/platforms/amigaone/Kconfig"
23source "arch/powerpc/platforms/book3s/Kconfig"
24source "arch/powerpc/platforms/microwatt/Kconfig"
25
26config KVM_GUEST
27 bool "KVM Guest support"
28 select EPAPR_PARAVIRT
29 help
30 This option enables various optimizations for running under the KVM
31 hypervisor. Overhead for the kernel when not running inside KVM should
32 be minimal.
33
34 In case of doubt, say Y
35
36config EPAPR_PARAVIRT
37 bool "ePAPR para-virtualization support"
38 help
39 Enables ePAPR para-virtualization support for guests.
40
41 In case of doubt, say Y
42
43config PPC_HASH_MMU_NATIVE
44 bool
45 depends on PPC_BOOK3S
46 help
47 Support for running natively on the hardware, i.e. without
48 a hypervisor. This option is not user-selectable but should
49 be selected by all platforms that need it.
50
51config PPC_OF_BOOT_TRAMPOLINE
52 bool "Support booting from Open Firmware or yaboot"
53 depends on PPC_BOOK3S_32 || PPC64
54 select RELOCATABLE if PPC64
55 default y
56 help
57 Support from booting from Open Firmware or yaboot using an
58 Open Firmware client interface. This enables the kernel to
59 communicate with open firmware to retrieve system information
60 such as the device tree.
61
62 In case of doubt, say Y
63
64config PPC_DT_CPU_FTRS
65 bool "Device-tree based CPU feature discovery & setup"
66 depends on PPC_BOOK3S_64
67 default y
68 help
69 This enables code to use a new device tree binding for describing CPU
70 compatibility and features. Saying Y here will attempt to use the new
71 binding if the firmware provides it. Currently only the skiboot
72 firmware provides this binding.
73 If you're not sure say Y.
74
75config UDBG_RTAS_CONSOLE
76 bool "RTAS based debug console"
77 depends on PPC_RTAS
78
79config PPC_SMP_MUXED_IPI
80 bool
81 help
82 Select this option if your platform supports SMP and your
83 interrupt controller provides less than 4 interrupts to each
84 cpu. This will enable the generic code to multiplex the 4
85 messages on to one ipi.
86
87config IPIC
88 bool
89
90config MPIC
91 bool
92
93config MPIC_TIMER
94 bool "MPIC Global Timer"
95 depends on MPIC && FSL_SOC
96 help
97 The MPIC global timer is a hardware timer inside the
98 Freescale PIC complying with OpenPIC standard. When the
99 specified interval times out, the hardware timer generates
100 an interrupt. The driver currently is only tested on fsl
101 chip, but it can potentially support other global timers
102 complying with the OpenPIC standard.
103
104config FSL_MPIC_TIMER_WAKEUP
105 tristate "Freescale MPIC global timer wakeup driver"
106 depends on FSL_SOC && MPIC_TIMER && PM
107 help
108 The driver provides a way to wake up the system by MPIC
109 timer.
110 e.g. "echo 5 > /sys/devices/system/mpic/timer_wakeup"
111
112config PPC_EPAPR_HV_PIC
113 bool
114 select EPAPR_PARAVIRT
115
116config MPIC_WEIRD
117 bool
118
119config MPIC_MSGR
120 bool "MPIC message register support"
121 depends on MPIC
122 help
123 Enables support for the MPIC message registers. These
124 registers are used for inter-processor communication.
125
126config PPC_I8259
127 bool
128
129config U3_DART
130 bool
131 depends on PPC64
132
133config PPC_RTAS
134 bool
135
136config RTAS_ERROR_LOGGING
137 bool
138 depends on PPC_RTAS
139
140config PPC_RTAS_DAEMON
141 bool
142 depends on PPC_RTAS
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
156config MPIC_U3_HT_IRQS
157 bool
158
159config MPIC_BROKEN_REGREAD
160 bool
161 depends on MPIC
162 help
163 This option enables a MPIC driver workaround for some chips
164 that have a bug that causes some interrupt source information
165 to not read back properly. It is safe to use on other chips as
166 well, but enabling it uses about 8KB of memory to keep copies
167 of the register contents in software.
168
169config EEH
170 bool
171 depends on (PPC_POWERNV || PPC_PSERIES) && PCI
172 default y
173
174config PPC_MPC106
175 bool
176
177config PPC_970_NAP
178 bool
179
180config PPC_P7_NAP
181 bool
182
183config PPC_BOOK3S_IDLE
184 def_bool y
185 depends on (PPC_970_NAP || PPC_P7_NAP)
186
187config PPC_INDIRECT_PIO
188 bool
189 select GENERIC_IOMAP
190
191config PPC_INDIRECT_MMIO
192 bool
193
194config PPC_IO_WORKAROUNDS
195 bool
196
197source "drivers/cpufreq/Kconfig"
198
199menu "CPUIdle driver"
200
201source "drivers/cpuidle/Kconfig"
202
203endmenu
204
205config TAU
206 bool "On-chip CPU temperature sensor support"
207 depends on PPC_BOOK3S_32
208 help
209 G3 and G4 processors have an on-chip temperature sensor called the
210 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
211 temperature within 2-4 degrees Celsius. This option shows the current
212 on-die temperature in /proc/cpuinfo if the cpu supports it.
213
214 Unfortunately, this sensor is very inaccurate when uncalibrated, so
215 don't assume the cpu temp is actually what /proc/cpuinfo says it is.
216
217config TAU_INT
218 bool "Interrupt driven TAU driver (EXPERIMENTAL)"
219 depends on TAU
220 help
221 The TAU supports an interrupt driven mode which causes an interrupt
222 whenever the temperature goes out of range. This is the fastest way
223 to get notified the temp has exceeded a range. With this option off,
224 a timer is used to re-check the temperature periodically.
225
226 If in doubt, say N here.
227
228config TAU_AVERAGE
229 bool "Average high and low temp"
230 depends on TAU
231 help
232 The TAU hardware can compare the temperature to an upper and lower
233 bound. The default behavior is to show both the upper and lower
234 bound in /proc/cpuinfo. If the range is large, the temperature is
235 either changing a lot, or the TAU hardware is broken (likely on some
236 G4's). If the range is small (around 4 degrees), the temperature is
237 relatively stable. If you say Y here, a single temperature value,
238 halfway between the upper and lower bounds, will be reported in
239 /proc/cpuinfo.
240
241 If in doubt, say N here.
242
243config QE_GPIO
244 bool "QE GPIO support"
245 depends on QUICC_ENGINE
246 select GPIOLIB
247 select OF_GPIO_MM_GPIOCHIP
248 help
249 Say Y here if you're going to use hardware that connects to the
250 QE GPIOs.
251
252config CPM2
253 bool "Enable support for the CPM2 (Communications Processor Module)"
254 depends on (FSL_SOC_BOOKE && PPC32) || 8260
255 select CPM
256 select HAVE_PCI
257 select GPIOLIB
258 select OF_GPIO_MM_GPIOCHIP
259 help
260 The CPM2 (Communications Processor Module) is a coprocessor on
261 embedded CPUs made by Freescale. Selecting this option means that
262 you wish to build a kernel for a machine with a CPM2 coprocessor
263 on it (826x, 827x, 8560).
264
265config FSL_ULI1575
266 bool "ULI1575 PCIe south bridge support"
267 depends on FSL_SOC_BOOKE || PPC_86xx
268 depends on PCI
269 select FSL_PCI
270 select GENERIC_ISA_DMA
271 help
272 Supports for the ULI1575 PCIe south bridge that exists on some
273 Freescale reference boards. The boards all use the ULI in pretty
274 much the same way.
275
276config CPM
277 bool
278 select GENERIC_ALLOCATOR
279
280config OF_RTC
281 bool
282 help
283 Uses information from the OF or flattened device tree to instantiate
284 platform devices for direct mapped RTC chips like the DS1742 or DS1743.
285
286config GEN_RTC
287 bool "Use the platform RTC operations from user space"
288 select RTC_CLASS
289 select RTC_DRV_GENERIC
290 help
291 This option provides backwards compatibility with the old gen_rtc.ko
292 module that was traditionally used for old PowerPC machines.
293 Platforms should migrate to enabling the RTC_DRV_GENERIC by hand
294 replacing their get_rtc_time/set_rtc_time callbacks with
295 a proper RTC device driver.
296
297config MCU_MPC8349EMITX
298 bool "MPC8349E-mITX MCU driver"
299 depends on I2C=y && PPC_83xx
300 select GPIOLIB
301 help
302 Say Y here to enable soft power-off functionality on the Freescale
303 boards with the MPC8349E-mITX-compatible MCU chips. This driver will
304 also register MCU GPIOs with the generic GPIO API, so you'll able
305 to use MCU pins as GPIOs.
306
307endmenu