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"
24 bool "KVM Guest support"
28 This option enables various optimizations for running under the KVM
29 hypervisor. Overhead for the kernel when not running inside KVM should
32 In case of doubt, say Y
35 bool "ePAPR para-virtualization support"
38 Enables ePAPR para-virtualization support for guests.
40 In case of doubt, say Y
44 depends on 6xx || PPC64
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.
50 config PPC_OF_BOOT_TRAMPOLINE
51 bool "Support booting from Open Firmware or yaboot"
52 depends on 6xx || PPC64
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.
60 In case of doubt, say Y
62 config UDBG_RTAS_CONSOLE
63 bool "RTAS based debug console"
67 config PPC_SMP_MUXED_IPI
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.
76 bool "BEAT based debug console"
89 bool "MPIC Global Timer"
90 depends on MPIC && FSL_SOC
93 The MPIC global timer is a hardware timer inside the
94 Freescale PIC complying with OpenPIC standard. When the
95 specified interval times out, the hardware timer generates
96 an interrupt. The driver currently is only tested on fsl
97 chip, but it can potentially support other global timers
98 complying with the OpenPIC standard.
100 config FSL_MPIC_TIMER_WAKEUP
101 tristate "Freescale MPIC global timer wakeup driver"
102 depends on FSL_SOC && MPIC_TIMER && PM
105 The driver provides a way to wake up the system by MPIC
107 e.g. "echo 5 > /sys/devices/system/mpic/timer_wakeup"
109 config PPC_EPAPR_HV_PIC
112 select EPAPR_PARAVIRT
119 bool "MPIC message register support"
123 Enables support for the MPIC message registers. These
124 registers are used for inter-processor communication.
139 config RTAS_ERROR_LOGGING
144 config PPC_RTAS_DAEMON
150 bool "Proc interface to RTAS"
151 depends on PPC_RTAS && PROC_FS
155 tristate "Firmware flash interface"
156 depends on PPC64 && RTAS_PROC
162 config MPIC_U3_HT_IRQS
166 config MPIC_BROKEN_REGREAD
170 This option enables a MPIC driver workaround for some chips
171 that have a bug that causes some interrupt source information
172 to not read back properly. It is safe to use on other chips as
173 well, but enabling it uses about 8KB of memory to keep copies
174 of the register contents in software.
177 depends on PPC_PSERIES
182 depends on PPC_PSERIES
183 bool "Support for GX bus based adapters"
185 Bus device driver for GX bus based adapters.
189 depends on (PPC_POWERNV || PPC_PSERIES) && PCI
204 config PPC_INDIRECT_PIO
208 config PPC_INDIRECT_MMIO
211 config PPC_IO_WORKAROUNDS
214 source "drivers/cpufreq/Kconfig"
216 menu "CPUIdle driver"
218 source "drivers/cpuidle/Kconfig"
222 config PPC601_SYNC_FIX
223 bool "Workarounds for PPC601 bugs"
224 depends on 6xx && PPC_PMAC
226 Some versions of the PPC601 (the first PowerPC chip) have bugs which
227 mean that extra synchronization instructions are required near
228 certain instructions, typically those that make major changes to the
229 CPU state. These extra instructions reduce performance slightly.
230 If you say N here, these extra instructions will not be included,
231 resulting in a kernel which will run faster but may not run at all
232 on some systems with the PPC601 chip.
234 If in doubt, say Y here.
237 bool "On-chip CPU temperature sensor support"
240 G3 and G4 processors have an on-chip temperature sensor called the
241 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
242 temperature within 2-4 degrees Celsius. This option shows the current
243 on-die temperature in /proc/cpuinfo if the cpu supports it.
245 Unfortunately, on some chip revisions, this sensor is very inaccurate
246 and in many cases, does not work at all, so don't assume the cpu
247 temp is actually what /proc/cpuinfo says it is.
250 bool "Interrupt driven TAU driver (DANGEROUS)"
253 The TAU supports an interrupt driven mode which causes an interrupt
254 whenever the temperature goes out of range. This is the fastest way
255 to get notified the temp has exceeded a range. With this option off,
256 a timer is used to re-check the temperature periodically.
258 However, on some cpus it appears that the TAU interrupt hardware
259 is buggy and can cause a situation which would lead unexplained hard
262 Unless you are extending the TAU driver, or enjoy kernel/hardware
263 debugging, leave this option off.
266 bool "Average high and low temp"
269 The TAU hardware can compare the temperature to an upper and lower
270 bound. The default behavior is to show both the upper and lower
271 bound in /proc/cpuinfo. If the range is large, the temperature is
272 either changing a lot, or the TAU hardware is broken (likely on some
273 G4's). If the range is small (around 4 degrees), the temperature is
274 relatively stable. If you say Y here, a single temperature value,
275 halfway between the upper and lower bounds, will be reported in
278 If in doubt, say N here.
281 bool "Freescale QUICC Engine (QE) Support"
282 depends on FSL_SOC && PPC32
286 The QUICC Engine (QE) is a new generation of communications
287 coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
288 Selecting this option means that you wish to build a kernel
289 for a machine with a QE coprocessor.
292 bool "QE GPIO support"
293 depends on QUICC_ENGINE
294 select ARCH_REQUIRE_GPIOLIB
296 Say Y here if you're going to use hardware that connects to the
300 bool "Enable support for the CPM2 (Communications Processor Module)"
301 depends on (FSL_SOC_BOOKE && PPC32) || 8260
304 select PPC_PCI_CHOICE
305 select ARCH_REQUIRE_GPIOLIB
307 The CPM2 (Communications Processor Module) is a coprocessor on
308 embedded CPUs made by Freescale. Selecting this option means that
309 you wish to build a kernel for a machine with a CPM2 coprocessor
310 on it (826x, 827x, 8560).
313 tristate "Axon DDR2 memory device driver"
314 depends on PPC_IBM_CELL_BLADE && BLOCK
317 It registers one block device per Axon's DDR2 memory bank found
318 on a system. Block devices are called axonram?, their major and
319 minor numbers are available in /proc/devices, /proc/partitions or
320 in /sys/block/axonram?/dev.
325 select GENERIC_ISA_DMA
327 Supports for the ULI1575 PCIe south bridge that exists on some
328 Freescale reference boards. The boards all use the ULI in pretty
337 Uses information from the OF or flattened device tree to instantiate
338 platform devices for direct mapped RTC chips like the DS1742 or DS1743.
341 bool "Support for simple, memory-mapped GPIO controllers"
343 select ARCH_REQUIRE_GPIOLIB
345 Say Y here to support simple, memory-mapped GPIO controllers.
346 These are usually BCSRs used to control board's switches, LEDs,
347 chip-selects, Ethernet/USB PHY's power and various other small
348 on-board peripherals.
350 config MCU_MPC8349EMITX
351 bool "MPC8349E-mITX MCU driver"
352 depends on I2C=y && PPC_83xx
353 select ARCH_REQUIRE_GPIOLIB
355 Say Y here to enable soft power-off functionality on the Freescale
356 boards with the MPC8349E-mITX-compatible MCU chips. This driver will
357 also register MCU GPIOs with the generic GPIO API, so you'll able
358 to use MCU pins as GPIOs.
361 bool "Xilinx PCI host bridge support"
362 depends on PCI && XILINX_VIRTEX