1 menu "Platform support"
3 source "arch/powerpc/platforms/powernv/Kconfig"
4 source "arch/powerpc/platforms/pseries/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/maple/Kconfig"
10 source "arch/powerpc/platforms/pasemi/Kconfig"
11 source "arch/powerpc/platforms/ps3/Kconfig"
12 source "arch/powerpc/platforms/cell/Kconfig"
13 source "arch/powerpc/platforms/8xx/Kconfig"
14 source "arch/powerpc/platforms/82xx/Kconfig"
15 source "arch/powerpc/platforms/83xx/Kconfig"
16 source "arch/powerpc/platforms/85xx/Kconfig"
17 source "arch/powerpc/platforms/86xx/Kconfig"
18 source "arch/powerpc/platforms/embedded6xx/Kconfig"
19 source "arch/powerpc/platforms/44x/Kconfig"
20 source "arch/powerpc/platforms/40x/Kconfig"
21 source "arch/powerpc/platforms/amigaone/Kconfig"
22 source "arch/powerpc/platforms/wsp/Kconfig"
25 bool "KVM Guest support"
29 This option enables various optimizations for running under the KVM
30 hypervisor. Overhead for the kernel when not running inside KVM should
33 In case of doubt, say Y
36 bool "ePAPR para-virtualization support"
39 Enables ePAPR para-virtualization support for guests.
41 In case of doubt, say Y
45 depends on 6xx || PPC64
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.
51 config PPC_OF_BOOT_TRAMPOLINE
52 bool "Support booting from Open Firmware or yaboot"
53 depends on 6xx || PPC64
56 Support from booting from Open Firmware or yaboot using an
57 Open Firmware client interface. This enables the kernel to
58 communicate with open firmware to retrieve system information
59 such as the device tree.
61 In case of doubt, say Y
63 config UDBG_RTAS_CONSOLE
64 bool "RTAS based debug console"
68 config PPC_SMP_MUXED_IPI
71 Select this opton if your platform supports SMP and your
72 interrupt controller provides less than 4 interrupts to each
73 cpu. This will enable the generic code to multiplex the 4
74 messages on to one ipi.
77 bool "BEAT based debug console"
90 bool "MPIC Global Timer"
91 depends on MPIC && FSL_SOC
94 The MPIC global timer is a hardware timer inside the
95 Freescale PIC complying with OpenPIC standard. When the
96 specified interval times out, the hardware timer generates
97 an interrupt. The driver currently is only tested on fsl
98 chip, but it can potentially support other global timers
99 complying with the OpenPIC standard.
101 config FSL_MPIC_TIMER_WAKEUP
102 tristate "Freescale MPIC global timer wakeup driver"
103 depends on FSL_SOC && MPIC_TIMER && PM
106 The driver provides a way to wake up the system by MPIC
108 e.g. "echo 5 > /sys/devices/system/mpic/timer_wakeup"
110 config PPC_EPAPR_HV_PIC
113 select EPAPR_PARAVIRT
120 bool "MPIC message register support"
124 Enables support for the MPIC message registers. These
125 registers are used for inter-processor communication.
140 config RTAS_ERROR_LOGGING
145 config PPC_RTAS_DAEMON
151 bool "Proc interface to RTAS"
152 depends on PPC_RTAS && PROC_FS
156 tristate "Firmware flash interface"
157 depends on PPC64 && RTAS_PROC
163 config MPIC_U3_HT_IRQS
167 config MPIC_BROKEN_REGREAD
171 This option enables a MPIC driver workaround for some chips
172 that have a bug that causes some interrupt source information
173 to not read back properly. It is safe to use on other chips as
174 well, but enabling it uses about 8KB of memory to keep copies
175 of the register contents in software.
178 depends on PPC_PSERIES
183 depends on PPC_PSERIES
184 bool "Support for GX bus based adapters"
186 Bus device driver for GX bus based adapters.
190 depends on (PPC_POWERNV || PPC_PSERIES) && PCI
205 config PPC_INDIRECT_PIO
209 config PPC_INDIRECT_MMIO
212 config PPC_IO_WORKAROUNDS
215 source "drivers/cpufreq/Kconfig"
217 menu "CPUIdle driver"
219 source "drivers/cpuidle/Kconfig"
223 config PPC601_SYNC_FIX
224 bool "Workarounds for PPC601 bugs"
225 depends on 6xx && PPC_PMAC
227 Some versions of the PPC601 (the first PowerPC chip) have bugs which
228 mean that extra synchronization instructions are required near
229 certain instructions, typically those that make major changes to the
230 CPU state. These extra instructions reduce performance slightly.
231 If you say N here, these extra instructions will not be included,
232 resulting in a kernel which will run faster but may not run at all
233 on some systems with the PPC601 chip.
235 If in doubt, say Y here.
238 bool "On-chip CPU temperature sensor support"
241 G3 and G4 processors have an on-chip temperature sensor called the
242 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
243 temperature within 2-4 degrees Celsius. This option shows the current
244 on-die temperature in /proc/cpuinfo if the cpu supports it.
246 Unfortunately, on some chip revisions, this sensor is very inaccurate
247 and in many cases, does not work at all, so don't assume the cpu
248 temp is actually what /proc/cpuinfo says it is.
251 bool "Interrupt driven TAU driver (DANGEROUS)"
254 The TAU supports an interrupt driven mode which causes an interrupt
255 whenever the temperature goes out of range. This is the fastest way
256 to get notified the temp has exceeded a range. With this option off,
257 a timer is used to re-check the temperature periodically.
259 However, on some cpus it appears that the TAU interrupt hardware
260 is buggy and can cause a situation which would lead unexplained hard
263 Unless you are extending the TAU driver, or enjoy kernel/hardware
264 debugging, leave this option off.
267 bool "Average high and low temp"
270 The TAU hardware can compare the temperature to an upper and lower
271 bound. The default behavior is to show both the upper and lower
272 bound in /proc/cpuinfo. If the range is large, the temperature is
273 either changing a lot, or the TAU hardware is broken (likely on some
274 G4's). If the range is small (around 4 degrees), the temperature is
275 relatively stable. If you say Y here, a single temperature value,
276 halfway between the upper and lower bounds, will be reported in
279 If in doubt, say N here.
282 bool "Freescale QUICC Engine (QE) Support"
283 depends on FSL_SOC && PPC32
287 The QUICC Engine (QE) is a new generation of communications
288 coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
289 Selecting this option means that you wish to build a kernel
290 for a machine with a QE coprocessor.
293 bool "QE GPIO support"
294 depends on QUICC_ENGINE
295 select ARCH_REQUIRE_GPIOLIB
297 Say Y here if you're going to use hardware that connects to the
301 bool "Enable support for the CPM2 (Communications Processor Module)"
302 depends on (FSL_SOC_BOOKE && PPC32) || 8260
305 select PPC_PCI_CHOICE
306 select ARCH_REQUIRE_GPIOLIB
308 The CPM2 (Communications Processor Module) is a coprocessor on
309 embedded CPUs made by Freescale. Selecting this option means that
310 you wish to build a kernel for a machine with a CPM2 coprocessor
311 on it (826x, 827x, 8560).
314 tristate "Axon DDR2 memory device driver"
315 depends on PPC_IBM_CELL_BLADE && BLOCK
318 It registers one block device per Axon's DDR2 memory bank found
319 on a system. Block devices are called axonram?, their major and
320 minor numbers are available in /proc/devices, /proc/partitions or
321 in /sys/block/axonram?/dev.
326 select GENERIC_ISA_DMA
328 Supports for the ULI1575 PCIe south bridge that exists on some
329 Freescale reference boards. The boards all use the ULI in pretty
338 Uses information from the OF or flattened device tree to instantiate
339 platform devices for direct mapped RTC chips like the DS1742 or DS1743.
342 bool "Support for simple, memory-mapped GPIO controllers"
344 select ARCH_REQUIRE_GPIOLIB
346 Say Y here to support simple, memory-mapped GPIO controllers.
347 These are usually BCSRs used to control board's switches, LEDs,
348 chip-selects, Ethernet/USB PHY's power and various other small
349 on-board peripherals.
351 config MCU_MPC8349EMITX
352 bool "MPC8349E-mITX MCU driver"
353 depends on I2C=y && PPC_83xx
354 select ARCH_REQUIRE_GPIOLIB
356 Say Y here to enable soft power-off functionality on the Freescale
357 boards with the MPC8349E-mITX-compatible MCU chips. This driver will
358 also register MCU GPIOs with the generic GPIO API, so you'll able
359 to use MCU pins as GPIOs.
362 bool "Xilinx PCI host bridge support"
363 depends on PCI && XILINX_VIRTEX