1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 24330f5daSKumar Galamenu "Platform support" 34330f5daSKumar Gala 455190f88SBenjamin Herrenschmidtsource "arch/powerpc/platforms/powernv/Kconfig" 54330f5daSKumar Galasource "arch/powerpc/platforms/pseries/Kconfig" 64330f5daSKumar Galasource "arch/powerpc/platforms/chrp/Kconfig" 7e177edcdSJohn Rigbysource "arch/powerpc/platforms/512x/Kconfig" 84330f5daSKumar Galasource "arch/powerpc/platforms/52xx/Kconfig" 94330f5daSKumar Galasource "arch/powerpc/platforms/powermac/Kconfig" 104330f5daSKumar Galasource "arch/powerpc/platforms/maple/Kconfig" 114330f5daSKumar Galasource "arch/powerpc/platforms/pasemi/Kconfig" 1298750261SKumar Galasource "arch/powerpc/platforms/ps3/Kconfig" 1398750261SKumar Galasource "arch/powerpc/platforms/cell/Kconfig" 14c8a55f3dSKumar Galasource "arch/powerpc/platforms/8xx/Kconfig" 15d6071f88SKumar Galasource "arch/powerpc/platforms/82xx/Kconfig" 16b5a48346SKumar Galasource "arch/powerpc/platforms/83xx/Kconfig" 17db947808SKumar Galasource "arch/powerpc/platforms/85xx/Kconfig" 184a89f7faSKumar Galasource "arch/powerpc/platforms/86xx/Kconfig" 1998750261SKumar Galasource "arch/powerpc/platforms/embedded6xx/Kconfig" 20f6dfc805SDavid Gibsonsource "arch/powerpc/platforms/44x/Kconfig" 21545c069cSJosh Boyersource "arch/powerpc/platforms/40x/Kconfig" 2254b318aaSGerhard Pirchersource "arch/powerpc/platforms/amigaone/Kconfig" 234330f5daSKumar Gala 24d17051cbSAlexander Grafconfig KVM_GUEST 25d17051cbSAlexander Graf bool "KVM Guest support" 262e1ae9c0SLiu Yu-B13201 select EPAPR_PARAVIRT 27a7f7f624SMasahiro Yamada help 28d17051cbSAlexander Graf This option enables various optimizations for running under the KVM 29d17051cbSAlexander Graf hypervisor. Overhead for the kernel when not running inside KVM should 30d17051cbSAlexander Graf be minimal. 31d17051cbSAlexander Graf 32d17051cbSAlexander Graf In case of doubt, say Y 33d17051cbSAlexander Graf 342e1ae9c0SLiu Yu-B13201config EPAPR_PARAVIRT 352e1ae9c0SLiu Yu-B13201 bool "ePAPR para-virtualization support" 362e1ae9c0SLiu Yu-B13201 help 372e1ae9c0SLiu Yu-B13201 Enables ePAPR para-virtualization support for guests. 382e1ae9c0SLiu Yu-B13201 392e1ae9c0SLiu Yu-B13201 In case of doubt, say Y 402e1ae9c0SLiu Yu-B13201 414330f5daSKumar Galaconfig PPC_NATIVE 424330f5daSKumar Gala bool 43be34fff0SChristophe Leroy depends on PPC_BOOK3S_32 || PPC64 444330f5daSKumar Gala help 454330f5daSKumar Gala Support for running natively on the hardware, i.e. without 464330f5daSKumar Gala a hypervisor. This option is not user-selectable but should 474330f5daSKumar Gala be selected by all platforms that need it. 484330f5daSKumar Gala 4928794d34SBenjamin Herrenschmidtconfig PPC_OF_BOOT_TRAMPOLINE 5028794d34SBenjamin Herrenschmidt bool "Support booting from Open Firmware or yaboot" 51be34fff0SChristophe Leroy depends on PPC_BOOK3S_32 || PPC64 5228794d34SBenjamin Herrenschmidt default y 5328794d34SBenjamin Herrenschmidt help 5428794d34SBenjamin Herrenschmidt Support from booting from Open Firmware or yaboot using an 5528794d34SBenjamin Herrenschmidt Open Firmware client interface. This enables the kernel to 56f65e51d7SSylvestre Ledru communicate with open firmware to retrieve system information 5728794d34SBenjamin Herrenschmidt such as the device tree. 5828794d34SBenjamin Herrenschmidt 5928794d34SBenjamin Herrenschmidt In case of doubt, say Y 6028794d34SBenjamin Herrenschmidt 61c6ee9619SMichael Ellermanconfig PPC_DT_CPU_FTRS 62c6ee9619SMichael Ellerman bool "Device-tree based CPU feature discovery & setup" 63c6ee9619SMichael Ellerman depends on PPC_BOOK3S_64 64c6ee9619SMichael Ellerman default y 65c6ee9619SMichael Ellerman help 66c6ee9619SMichael Ellerman This enables code to use a new device tree binding for describing CPU 67c6ee9619SMichael Ellerman compatibility and features. Saying Y here will attempt to use the new 68c6ee9619SMichael Ellerman binding if the firmware provides it. Currently only the skiboot 69c6ee9619SMichael Ellerman firmware provides this binding. 70c6ee9619SMichael Ellerman If you're not sure say Y. 71c6ee9619SMichael Ellerman 724330f5daSKumar Galaconfig UDBG_RTAS_CONSOLE 734330f5daSKumar Gala bool "RTAS based debug console" 744330f5daSKumar Gala depends on PPC_RTAS 754330f5daSKumar Gala 761ece355bSMilton Millerconfig PPC_SMP_MUXED_IPI 771ece355bSMilton Miller bool 781ece355bSMilton Miller help 7983fc61a5SMasanari Iida Select this option if your platform supports SMP and your 801ece355bSMilton Miller interrupt controller provides less than 4 interrupts to each 811ece355bSMilton Miller cpu. This will enable the generic code to multiplex the 4 821ece355bSMilton Miller messages on to one ipi. 831ece355bSMilton Miller 84b0bbad60SJohn Rigbyconfig IPIC 85b0bbad60SJohn Rigby bool 86b0bbad60SJohn Rigby 8798750261SKumar Galaconfig MPIC 8898750261SKumar Gala bool 8998750261SKumar Gala 9036ca09beSDongsheng.wang@freescale.comconfig MPIC_TIMER 9136ca09beSDongsheng.wang@freescale.com bool "MPIC Global Timer" 9236ca09beSDongsheng.wang@freescale.com depends on MPIC && FSL_SOC 9336ca09beSDongsheng.wang@freescale.com help 9436ca09beSDongsheng.wang@freescale.com The MPIC global timer is a hardware timer inside the 9536ca09beSDongsheng.wang@freescale.com Freescale PIC complying with OpenPIC standard. When the 9636ca09beSDongsheng.wang@freescale.com specified interval times out, the hardware timer generates 9736ca09beSDongsheng.wang@freescale.com an interrupt. The driver currently is only tested on fsl 9836ca09beSDongsheng.wang@freescale.com chip, but it can potentially support other global timers 9936ca09beSDongsheng.wang@freescale.com complying with the OpenPIC standard. 10036ca09beSDongsheng.wang@freescale.com 101a63b3bc7SDongsheng.wang@freescale.comconfig FSL_MPIC_TIMER_WAKEUP 102a63b3bc7SDongsheng.wang@freescale.com tristate "Freescale MPIC global timer wakeup driver" 103a63b3bc7SDongsheng.wang@freescale.com depends on FSL_SOC && MPIC_TIMER && PM 104a63b3bc7SDongsheng.wang@freescale.com help 105a63b3bc7SDongsheng.wang@freescale.com The driver provides a way to wake up the system by MPIC 106a63b3bc7SDongsheng.wang@freescale.com timer. 107a63b3bc7SDongsheng.wang@freescale.com e.g. "echo 5 > /sys/devices/system/mpic/timer_wakeup" 108a63b3bc7SDongsheng.wang@freescale.com 1093a93261fSAshish Kalraconfig PPC_EPAPR_HV_PIC 1103a93261fSAshish Kalra bool 11140656397SStuart Yoder select EPAPR_PARAVIRT 1123a93261fSAshish Kalra 11398750261SKumar Galaconfig MPIC_WEIRD 11498750261SKumar Gala bool 11598750261SKumar Gala 1168626816eSJia Hongtaoconfig MPIC_MSGR 1178626816eSJia Hongtao bool "MPIC message register support" 1188626816eSJia Hongtao depends on MPIC 1198626816eSJia Hongtao help 1208626816eSJia Hongtao Enables support for the MPIC message registers. These 1218626816eSJia Hongtao registers are used for inter-processor communication. 1228626816eSJia Hongtao 12398750261SKumar Galaconfig PPC_I8259 12498750261SKumar Gala bool 12598750261SKumar Gala 1264330f5daSKumar Galaconfig U3_DART 1274330f5daSKumar Gala bool 12828794d34SBenjamin Herrenschmidt depends on PPC64 1294330f5daSKumar Gala 1304330f5daSKumar Galaconfig PPC_RTAS 1314330f5daSKumar Gala bool 1324330f5daSKumar Gala 1334330f5daSKumar Galaconfig RTAS_ERROR_LOGGING 1344330f5daSKumar Gala bool 1354330f5daSKumar Gala depends on PPC_RTAS 1364330f5daSKumar Gala 1373d541c4bSBenjamin Herrenschmidtconfig PPC_RTAS_DAEMON 1383d541c4bSBenjamin Herrenschmidt bool 1393d541c4bSBenjamin Herrenschmidt depends on PPC_RTAS 1403d541c4bSBenjamin Herrenschmidt 1414330f5daSKumar Galaconfig RTAS_PROC 1424330f5daSKumar Gala bool "Proc interface to RTAS" 143b80ec3dcSMichael Ellerman depends on PPC_RTAS && PROC_FS 1444330f5daSKumar Gala default y 1454330f5daSKumar Gala 1464330f5daSKumar Galaconfig RTAS_FLASH 1474330f5daSKumar Gala tristate "Firmware flash interface" 1484330f5daSKumar Gala depends on PPC64 && RTAS_PROC 1494330f5daSKumar Gala 1504330f5daSKumar Galaconfig MMIO_NVRAM 1514330f5daSKumar Gala bool 1524330f5daSKumar Gala 1536cfef5b2SMichael Ellermanconfig MPIC_U3_HT_IRQS 1544330f5daSKumar Gala bool 1554330f5daSKumar Gala 1560d72ba93SOlof Johanssonconfig MPIC_BROKEN_REGREAD 1570d72ba93SOlof Johansson bool 1580d72ba93SOlof Johansson depends on MPIC 1590d72ba93SOlof Johansson help 1600d72ba93SOlof Johansson This option enables a MPIC driver workaround for some chips 1610d72ba93SOlof Johansson that have a bug that causes some interrupt source information 1620d72ba93SOlof Johansson to not read back properly. It is safe to use on other chips as 1630d72ba93SOlof Johansson well, but enabling it uses about 8KB of memory to keep copies 1640d72ba93SOlof Johansson of the register contents in software. 1650d72ba93SOlof Johansson 166317f06deSGavin Shanconfig EEH 167317f06deSGavin Shan bool 168317f06deSGavin Shan depends on (PPC_POWERNV || PPC_PSERIES) && PCI 169317f06deSGavin Shan default y 170317f06deSGavin Shan 1714330f5daSKumar Galaconfig PPC_MPC106 1724330f5daSKumar Gala bool 1734330f5daSKumar Gala 1744330f5daSKumar Galaconfig PPC_970_NAP 1754330f5daSKumar Gala bool 1764330f5daSKumar Gala 177948cf67cSBenjamin Herrenschmidtconfig PPC_P7_NAP 178948cf67cSBenjamin Herrenschmidt bool 179948cf67cSBenjamin Herrenschmidt 180ed0bc98fSNicholas Pigginconfig PPC_BOOK3S_IDLE 181ed0bc98fSNicholas Piggin def_bool y 182ed0bc98fSNicholas Piggin depends on (PPC_970_NAP || PPC_P7_NAP) 183ed0bc98fSNicholas Piggin 184ecd73cc5SBenjamin Herrenschmidtconfig PPC_INDIRECT_PIO 1854330f5daSKumar Gala bool 1864330f5daSKumar Gala select GENERIC_IOMAP 18721176fedSMichael Ellerman 18821176fedSMichael Ellermanconfig PPC_INDIRECT_MMIO 18921176fedSMichael Ellerman bool 1904330f5daSKumar Gala 1913cc30d07SMichael Ellermanconfig PPC_IO_WORKAROUNDS 1923cc30d07SMichael Ellerman bool 1933cc30d07SMichael Ellerman 1944330f5daSKumar Galasource "drivers/cpufreq/Kconfig" 1954330f5daSKumar Gala 196e179816cSDeepthi Dharwarmenu "CPUIdle driver" 197e179816cSDeepthi Dharwar 198e179816cSDeepthi Dharwarsource "drivers/cpuidle/Kconfig" 199e179816cSDeepthi Dharwar 200e179816cSDeepthi Dharwarendmenu 201e179816cSDeepthi Dharwar 2024330f5daSKumar Galaconfig PPC601_SYNC_FIX 2034330f5daSKumar Gala bool "Workarounds for PPC601 bugs" 20412c3f1fdSChristophe Leroy depends on PPC_BOOK3S_601 && PPC_PMAC 20512c3f1fdSChristophe Leroy default y 2064330f5daSKumar Gala help 2074330f5daSKumar Gala Some versions of the PPC601 (the first PowerPC chip) have bugs which 2084330f5daSKumar Gala mean that extra synchronization instructions are required near 2094330f5daSKumar Gala certain instructions, typically those that make major changes to the 2104330f5daSKumar Gala CPU state. These extra instructions reduce performance slightly. 2114330f5daSKumar Gala If you say N here, these extra instructions will not be included, 2124330f5daSKumar Gala resulting in a kernel which will run faster but may not run at all 2134330f5daSKumar Gala on some systems with the PPC601 chip. 2144330f5daSKumar Gala 2154330f5daSKumar Gala If in doubt, say Y here. 2164330f5daSKumar Gala 2174330f5daSKumar Galaconfig TAU 2184330f5daSKumar Gala bool "On-chip CPU temperature sensor support" 219be34fff0SChristophe Leroy depends on PPC_BOOK3S_32 2204330f5daSKumar Gala help 2214330f5daSKumar Gala G3 and G4 processors have an on-chip temperature sensor called the 2224330f5daSKumar Gala 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die 2234330f5daSKumar Gala temperature within 2-4 degrees Celsius. This option shows the current 2244330f5daSKumar Gala on-die temperature in /proc/cpuinfo if the cpu supports it. 2254330f5daSKumar Gala 2265e3119e1SFinn Thain Unfortunately, this sensor is very inaccurate when uncalibrated, so 2275e3119e1SFinn Thain don't assume the cpu temp is actually what /proc/cpuinfo says it is. 2284330f5daSKumar Gala 2294330f5daSKumar Galaconfig TAU_INT 2304330f5daSKumar Gala bool "Interrupt driven TAU driver (DANGEROUS)" 2314330f5daSKumar Gala depends on TAU 232a7f7f624SMasahiro Yamada help 2334330f5daSKumar Gala The TAU supports an interrupt driven mode which causes an interrupt 2344330f5daSKumar Gala whenever the temperature goes out of range. This is the fastest way 2354330f5daSKumar Gala to get notified the temp has exceeded a range. With this option off, 2364330f5daSKumar Gala a timer is used to re-check the temperature periodically. 2374330f5daSKumar Gala 2384330f5daSKumar Gala However, on some cpus it appears that the TAU interrupt hardware 2394330f5daSKumar Gala is buggy and can cause a situation which would lead unexplained hard 2404330f5daSKumar Gala lockups. 2414330f5daSKumar Gala 2424330f5daSKumar Gala Unless you are extending the TAU driver, or enjoy kernel/hardware 2434330f5daSKumar Gala debugging, leave this option off. 2444330f5daSKumar Gala 2454330f5daSKumar Galaconfig TAU_AVERAGE 2464330f5daSKumar Gala bool "Average high and low temp" 2474330f5daSKumar Gala depends on TAU 248a7f7f624SMasahiro Yamada help 2494330f5daSKumar Gala The TAU hardware can compare the temperature to an upper and lower 2504330f5daSKumar Gala bound. The default behavior is to show both the upper and lower 2514330f5daSKumar Gala bound in /proc/cpuinfo. If the range is large, the temperature is 2524330f5daSKumar Gala either changing a lot, or the TAU hardware is broken (likely on some 2534330f5daSKumar Gala G4's). If the range is small (around 4 degrees), the temperature is 2544330f5daSKumar Gala relatively stable. If you say Y here, a single temperature value, 2554330f5daSKumar Gala halfway between the upper and lower bounds, will be reported in 2564330f5daSKumar Gala /proc/cpuinfo. 2574330f5daSKumar Gala 2584330f5daSKumar Gala If in doubt, say N here. 2594330f5daSKumar Gala 2605c091193SAnton Vorontsovconfig QE_GPIO 2615c091193SAnton Vorontsov bool "QE GPIO support" 2625c091193SAnton Vorontsov depends on QUICC_ENGINE 26386c55af4SLinus Walleij select GPIOLIB 2645c091193SAnton Vorontsov help 2655c091193SAnton Vorontsov Say Y here if you're going to use hardware that connects to the 2665c091193SAnton Vorontsov QE GPIOs. 2675c091193SAnton Vorontsov 268d6071f88SKumar Galaconfig CPM2 269b8b3caf3SPaul Gortmaker bool "Enable support for the CPM2 (Communications Processor Module)" 2705753c082SKumar Gala depends on (FSL_SOC_BOOKE && PPC32) || 8260 271c374e00eSScott Wood select CPM 272eb01d42aSChristoph Hellwig select HAVE_PCI 27386c55af4SLinus Walleij select GPIOLIB 274d6071f88SKumar Gala help 275d6071f88SKumar Gala The CPM2 (Communications Processor Module) is a coprocessor on 276d6071f88SKumar Gala embedded CPUs made by Freescale. Selecting this option means that 277d6071f88SKumar Gala you wish to build a kernel for a machine with a CPM2 coprocessor 278d6071f88SKumar Gala on it (826x, 827x, 8560). 279d6071f88SKumar Gala 280b66510cbSKumar Galaconfig FSL_ULI1575 281b66510cbSKumar Gala bool 282fb4f0e88SKumar Gala select GENERIC_ISA_DMA 283b66510cbSKumar Gala help 284b66510cbSKumar Gala Supports for the ULI1575 PCIe south bridge that exists on some 285b66510cbSKumar Gala Freescale reference boards. The boards all use the ULI in pretty 286b66510cbSKumar Gala much the same way. 287b66510cbSKumar Gala 288c374e00eSScott Woodconfig CPM 289c374e00eSScott Wood bool 2900e6e01ffSZhao Qiang select GENERIC_ALLOCATOR 291c374e00eSScott Wood 29222258fa4SDavid Gibsonconfig OF_RTC 29322258fa4SDavid Gibson bool 29422258fa4SDavid Gibson help 295692105b8SMatt LaPlante Uses information from the OF or flattened device tree to instantiate 29622258fa4SDavid Gibson platform devices for direct mapped RTC chips like the DS1742 or DS1743. 29722258fa4SDavid Gibson 298835ea93eSArnd Bergmannconfig GEN_RTC 299835ea93eSArnd Bergmann bool "Use the platform RTC operations from user space" 300835ea93eSArnd Bergmann select RTC_CLASS 301835ea93eSArnd Bergmann select RTC_DRV_GENERIC 302835ea93eSArnd Bergmann help 303835ea93eSArnd Bergmann This option provides backwards compatibility with the old gen_rtc.ko 304835ea93eSArnd Bergmann module that was traditionally used for old PowerPC machines. 305835ea93eSArnd Bergmann Platforms should migrate to enabling the RTC_DRV_GENERIC by hand 306835ea93eSArnd Bergmann replacing their get_rtc_time/set_rtc_time callbacks with 307835ea93eSArnd Bergmann a proper RTC device driver. 308835ea93eSArnd Bergmann 309ea0105eaSAnton Vorontsovconfig MCU_MPC8349EMITX 3106ca6ca5dSFabio Baltieri bool "MPC8349E-mITX MCU driver" 31182640a6bSAl Viro depends on I2C=y && PPC_83xx 31286c55af4SLinus Walleij select GPIOLIB 313ea0105eaSAnton Vorontsov help 314ea0105eaSAnton Vorontsov Say Y here to enable soft power-off functionality on the Freescale 315ea0105eaSAnton Vorontsov boards with the MPC8349E-mITX-compatible MCU chips. This driver will 316ea0105eaSAnton Vorontsov also register MCU GPIOs with the generic GPIO API, so you'll able 317ea0105eaSAnton Vorontsov to use MCU pins as GPIOs. 318ea0105eaSAnton Vorontsov 3194330f5daSKumar Galaendmenu 320