diff options
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r-- | arch/arm/Kconfig | 250 |
1 files changed, 150 insertions, 100 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 9d02cdb15b23..29475101a7b3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig | |||
@@ -34,15 +34,12 @@ config SYS_SUPPORTS_APM_EMULATION | |||
34 | 34 | ||
35 | config GENERIC_GPIO | 35 | config GENERIC_GPIO |
36 | bool | 36 | bool |
37 | default n | ||
38 | 37 | ||
39 | config GENERIC_TIME | 38 | config GENERIC_TIME |
40 | bool | 39 | bool |
41 | default n | ||
42 | 40 | ||
43 | config GENERIC_CLOCKEVENTS | 41 | config GENERIC_CLOCKEVENTS |
44 | bool | 42 | bool |
45 | default n | ||
46 | 43 | ||
47 | config GENERIC_CLOCKEVENTS_BROADCAST | 44 | config GENERIC_CLOCKEVENTS_BROADCAST |
48 | bool | 45 | bool |
@@ -55,7 +52,6 @@ config MMU | |||
55 | 52 | ||
56 | config NO_IOPORT | 53 | config NO_IOPORT |
57 | bool | 54 | bool |
58 | default n | ||
59 | 55 | ||
60 | config EISA | 56 | config EISA |
61 | bool | 57 | bool |
@@ -126,11 +122,9 @@ config RWSEM_XCHGADD_ALGORITHM | |||
126 | 122 | ||
127 | config ARCH_HAS_ILOG2_U32 | 123 | config ARCH_HAS_ILOG2_U32 |
128 | bool | 124 | bool |
129 | default n | ||
130 | 125 | ||
131 | config ARCH_HAS_ILOG2_U64 | 126 | config ARCH_HAS_ILOG2_U64 |
132 | bool | 127 | bool |
133 | default n | ||
134 | 128 | ||
135 | config GENERIC_HWEIGHT | 129 | config GENERIC_HWEIGHT |
136 | bool | 130 | bool |
@@ -253,6 +247,14 @@ config ARCH_CLPS711X | |||
253 | help | 247 | help |
254 | Support for Cirrus Logic 711x/721x based boards. | 248 | Support for Cirrus Logic 711x/721x based boards. |
255 | 249 | ||
250 | config ARCH_GEMINI | ||
251 | bool "Cortina Systems Gemini" | ||
252 | select CPU_FA526 | ||
253 | select GENERIC_GPIO | ||
254 | select ARCH_REQUIRE_GPIOLIB | ||
255 | help | ||
256 | Support for the Cortina Systems Gemini family SoCs | ||
257 | |||
256 | config ARCH_EBSA110 | 258 | config ARCH_EBSA110 |
257 | bool "EBSA-110" | 259 | bool "EBSA-110" |
258 | select CPU_SA110 | 260 | select CPU_SA110 |
@@ -277,14 +279,6 @@ config ARCH_EP93XX | |||
277 | help | 279 | help |
278 | This enables support for the Cirrus EP93xx series of CPUs. | 280 | This enables support for the Cirrus EP93xx series of CPUs. |
279 | 281 | ||
280 | config ARCH_GEMINI | ||
281 | bool "Cortina Systems Gemini" | ||
282 | select CPU_FA526 | ||
283 | select GENERIC_GPIO | ||
284 | select ARCH_REQUIRE_GPIOLIB | ||
285 | help | ||
286 | Support for the Cortina Systems Gemini family SoCs | ||
287 | |||
288 | config ARCH_FOOTBRIDGE | 282 | config ARCH_FOOTBRIDGE |
289 | bool "FootBridge" | 283 | bool "FootBridge" |
290 | select CPU_SA110 | 284 | select CPU_SA110 |
@@ -293,6 +287,30 @@ config ARCH_FOOTBRIDGE | |||
293 | Support for systems based on the DC21285 companion chip | 287 | Support for systems based on the DC21285 companion chip |
294 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. | 288 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. |
295 | 289 | ||
290 | config ARCH_MXC | ||
291 | bool "Freescale MXC/iMX-based" | ||
292 | select GENERIC_TIME | ||
293 | select GENERIC_CLOCKEVENTS | ||
294 | select ARCH_MTD_XIP | ||
295 | select GENERIC_GPIO | ||
296 | select ARCH_REQUIRE_GPIOLIB | ||
297 | select HAVE_CLK | ||
298 | help | ||
299 | Support for Freescale MXC/iMX-based family of processors | ||
300 | |||
301 | config ARCH_STMP3XXX | ||
302 | bool "Freescale STMP3xxx" | ||
303 | select CPU_ARM926T | ||
304 | select HAVE_CLK | ||
305 | select COMMON_CLKDEV | ||
306 | select ARCH_REQUIRE_GPIOLIB | ||
307 | select GENERIC_TIME | ||
308 | select GENERIC_CLOCKEVENTS | ||
309 | select GENERIC_GPIO | ||
310 | select USB_ARCH_HAS_EHCI | ||
311 | help | ||
312 | Support for systems based on the Freescale 3xxx CPUs. | ||
313 | |||
296 | config ARCH_NETX | 314 | config ARCH_NETX |
297 | bool "Hilscher NetX based" | 315 | bool "Hilscher NetX based" |
298 | select CPU_ARM926T | 316 | select CPU_ARM926T |
@@ -309,15 +327,6 @@ config ARCH_H720X | |||
309 | help | 327 | help |
310 | This enables support for systems based on the Hynix HMS720x | 328 | This enables support for systems based on the Hynix HMS720x |
311 | 329 | ||
312 | config ARCH_IMX | ||
313 | bool "IMX" | ||
314 | select CPU_ARM920T | ||
315 | select GENERIC_GPIO | ||
316 | select GENERIC_TIME | ||
317 | select GENERIC_CLOCKEVENTS | ||
318 | help | ||
319 | Support for Motorola's i.MX family of processors (MX1, MXL). | ||
320 | |||
321 | config ARCH_IOP13XX | 330 | config ARCH_IOP13XX |
322 | bool "IOP13xx-based" | 331 | bool "IOP13xx-based" |
323 | depends on MMU | 332 | depends on MMU |
@@ -398,6 +407,7 @@ config ARCH_KIRKWOOD | |||
398 | select CPU_FEROCEON | 407 | select CPU_FEROCEON |
399 | select PCI | 408 | select PCI |
400 | select GENERIC_GPIO | 409 | select GENERIC_GPIO |
410 | select ARCH_REQUIRE_GPIOLIB | ||
401 | select GENERIC_TIME | 411 | select GENERIC_TIME |
402 | select GENERIC_CLOCKEVENTS | 412 | select GENERIC_CLOCKEVENTS |
403 | select PLAT_ORION | 413 | select PLAT_ORION |
@@ -405,28 +415,6 @@ config ARCH_KIRKWOOD | |||
405 | Support for the following Marvell Kirkwood series SoCs: | 415 | Support for the following Marvell Kirkwood series SoCs: |
406 | 88F6180, 88F6192 and 88F6281. | 416 | 88F6180, 88F6192 and 88F6281. |
407 | 417 | ||
408 | config ARCH_KS8695 | ||
409 | bool "Micrel/Kendin KS8695" | ||
410 | select CPU_ARM922T | ||
411 | select GENERIC_GPIO | ||
412 | select ARCH_REQUIRE_GPIOLIB | ||
413 | help | ||
414 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | ||
415 | System-on-Chip devices. | ||
416 | |||
417 | config ARCH_NS9XXX | ||
418 | bool "NetSilicon NS9xxx" | ||
419 | select CPU_ARM926T | ||
420 | select GENERIC_GPIO | ||
421 | select GENERIC_TIME | ||
422 | select GENERIC_CLOCKEVENTS | ||
423 | select HAVE_CLK | ||
424 | help | ||
425 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | ||
426 | System. | ||
427 | |||
428 | <http://www.digi.com/products/microprocessors/index.jsp> | ||
429 | |||
430 | config ARCH_LOKI | 418 | config ARCH_LOKI |
431 | bool "Marvell Loki (88RC8480)" | 419 | bool "Marvell Loki (88RC8480)" |
432 | select CPU_FEROCEON | 420 | select CPU_FEROCEON |
@@ -441,6 +429,7 @@ config ARCH_MV78XX0 | |||
441 | select CPU_FEROCEON | 429 | select CPU_FEROCEON |
442 | select PCI | 430 | select PCI |
443 | select GENERIC_GPIO | 431 | select GENERIC_GPIO |
432 | select ARCH_REQUIRE_GPIOLIB | ||
444 | select GENERIC_TIME | 433 | select GENERIC_TIME |
445 | select GENERIC_CLOCKEVENTS | 434 | select GENERIC_CLOCKEVENTS |
446 | select PLAT_ORION | 435 | select PLAT_ORION |
@@ -448,23 +437,13 @@ config ARCH_MV78XX0 | |||
448 | Support for the following Marvell MV78xx0 series SoCs: | 437 | Support for the following Marvell MV78xx0 series SoCs: |
449 | MV781x0, MV782x0. | 438 | MV781x0, MV782x0. |
450 | 439 | ||
451 | config ARCH_MXC | ||
452 | bool "Freescale MXC/iMX-based" | ||
453 | select GENERIC_TIME | ||
454 | select GENERIC_CLOCKEVENTS | ||
455 | select ARCH_MTD_XIP | ||
456 | select GENERIC_GPIO | ||
457 | select ARCH_REQUIRE_GPIOLIB | ||
458 | select HAVE_CLK | ||
459 | help | ||
460 | Support for Freescale MXC/iMX-based family of processors | ||
461 | |||
462 | config ARCH_ORION5X | 440 | config ARCH_ORION5X |
463 | bool "Marvell Orion" | 441 | bool "Marvell Orion" |
464 | depends on MMU | 442 | depends on MMU |
465 | select CPU_FEROCEON | 443 | select CPU_FEROCEON |
466 | select PCI | 444 | select PCI |
467 | select GENERIC_GPIO | 445 | select GENERIC_GPIO |
446 | select ARCH_REQUIRE_GPIOLIB | ||
468 | select GENERIC_TIME | 447 | select GENERIC_TIME |
469 | select GENERIC_CLOCKEVENTS | 448 | select GENERIC_CLOCKEVENTS |
470 | select PLAT_ORION | 449 | select PLAT_ORION |
@@ -473,6 +452,52 @@ config ARCH_ORION5X | |||
473 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), | 452 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
474 | Orion-2 (5281), Orion-1-90 (6183). | 453 | Orion-2 (5281), Orion-1-90 (6183). |
475 | 454 | ||
455 | config ARCH_MMP | ||
456 | bool "Marvell PXA168/910" | ||
457 | depends on MMU | ||
458 | select GENERIC_GPIO | ||
459 | select ARCH_REQUIRE_GPIOLIB | ||
460 | select HAVE_CLK | ||
461 | select COMMON_CLKDEV | ||
462 | select GENERIC_TIME | ||
463 | select GENERIC_CLOCKEVENTS | ||
464 | select TICK_ONESHOT | ||
465 | select PLAT_PXA | ||
466 | help | ||
467 | Support for Marvell's PXA168/910 processor line. | ||
468 | |||
469 | config ARCH_KS8695 | ||
470 | bool "Micrel/Kendin KS8695" | ||
471 | select CPU_ARM922T | ||
472 | select GENERIC_GPIO | ||
473 | select ARCH_REQUIRE_GPIOLIB | ||
474 | help | ||
475 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based | ||
476 | System-on-Chip devices. | ||
477 | |||
478 | config ARCH_NS9XXX | ||
479 | bool "NetSilicon NS9xxx" | ||
480 | select CPU_ARM926T | ||
481 | select GENERIC_GPIO | ||
482 | select GENERIC_TIME | ||
483 | select GENERIC_CLOCKEVENTS | ||
484 | select HAVE_CLK | ||
485 | help | ||
486 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx | ||
487 | System. | ||
488 | |||
489 | <http://www.digi.com/products/microprocessors/index.jsp> | ||
490 | |||
491 | config ARCH_W90X900 | ||
492 | bool "Nuvoton W90X900 CPU" | ||
493 | select CPU_ARM926T | ||
494 | select ARCH_REQUIRE_GPIOLIB | ||
495 | select GENERIC_GPIO | ||
496 | select COMMON_CLKDEV | ||
497 | help | ||
498 | Support for Nuvoton (Winbond logic dept.) ARM9 processor,You | ||
499 | can login www.mcuos.com or www.nuvoton.com to know more. | ||
500 | |||
476 | config ARCH_PNX4008 | 501 | config ARCH_PNX4008 |
477 | bool "Philips Nexperia PNX4008 Mobile" | 502 | bool "Philips Nexperia PNX4008 Mobile" |
478 | select CPU_ARM926T | 503 | select CPU_ARM926T |
@@ -495,19 +520,16 @@ config ARCH_PXA | |||
495 | help | 520 | help |
496 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. | 521 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
497 | 522 | ||
498 | config ARCH_MMP | 523 | config ARCH_MSM |
499 | bool "Marvell PXA168/910" | 524 | bool "Qualcomm MSM" |
500 | depends on MMU | 525 | select CPU_V6 |
501 | select GENERIC_GPIO | ||
502 | select ARCH_REQUIRE_GPIOLIB | ||
503 | select HAVE_CLK | ||
504 | select COMMON_CLKDEV | ||
505 | select GENERIC_TIME | 526 | select GENERIC_TIME |
506 | select GENERIC_CLOCKEVENTS | 527 | select GENERIC_CLOCKEVENTS |
507 | select TICK_ONESHOT | ||
508 | select PLAT_PXA | ||
509 | help | 528 | help |
510 | Support for Marvell's PXA168/910 processor line. | 529 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
530 | apps processor of the MSM7K and depends on a shared memory | ||
531 | interface to the ARM9 modem processor which runs the baseband stack | ||
532 | and controls some vital subsystems (clock and power control, etc). | ||
511 | 533 | ||
512 | config ARCH_RPC | 534 | config ARCH_RPC |
513 | bool "RiscPC" | 535 | bool "RiscPC" |
@@ -576,6 +598,20 @@ config ARCH_LH7A40X | |||
576 | core with a wide array of integrated devices for | 598 | core with a wide array of integrated devices for |
577 | hand-held and low-power applications. | 599 | hand-held and low-power applications. |
578 | 600 | ||
601 | config ARCH_U300 | ||
602 | bool "ST-Ericsson U300 Series" | ||
603 | depends on MMU | ||
604 | select CPU_ARM926T | ||
605 | select ARM_AMBA | ||
606 | select ARM_VIC | ||
607 | select GENERIC_TIME | ||
608 | select GENERIC_CLOCKEVENTS | ||
609 | select HAVE_CLK | ||
610 | select COMMON_CLKDEV | ||
611 | select GENERIC_GPIO | ||
612 | help | ||
613 | Support for ST-Ericsson U300 series mobile platforms. | ||
614 | |||
579 | config ARCH_DAVINCI | 615 | config ARCH_DAVINCI |
580 | bool "TI DaVinci" | 616 | bool "TI DaVinci" |
581 | select CPU_ARM926T | 617 | select CPU_ARM926T |
@@ -587,6 +623,7 @@ config ARCH_DAVINCI | |||
587 | select ZONE_DMA | 623 | select ZONE_DMA |
588 | select HAVE_IDE | 624 | select HAVE_IDE |
589 | select COMMON_CLKDEV | 625 | select COMMON_CLKDEV |
626 | select GENERIC_ALLOCATOR | ||
590 | help | 627 | help |
591 | Support for TI's DaVinci platform. | 628 | Support for TI's DaVinci platform. |
592 | 629 | ||
@@ -600,24 +637,6 @@ config ARCH_OMAP | |||
600 | help | 637 | help |
601 | Support for TI's OMAP platform (OMAP1 and OMAP2). | 638 | Support for TI's OMAP platform (OMAP1 and OMAP2). |
602 | 639 | ||
603 | config ARCH_MSM | ||
604 | bool "Qualcomm MSM" | ||
605 | select CPU_V6 | ||
606 | select GENERIC_TIME | ||
607 | select GENERIC_CLOCKEVENTS | ||
608 | help | ||
609 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 | ||
610 | apps processor of the MSM7K and depends on a shared memory | ||
611 | interface to the ARM9 modem processor which runs the baseband stack | ||
612 | and controls some vital subsystems (clock and power control, etc). | ||
613 | |||
614 | config ARCH_W90X900 | ||
615 | bool "Nuvoton W90X900 CPU" | ||
616 | select CPU_ARM926T | ||
617 | help | ||
618 | Support for Nuvoton (Winbond logic dept.) ARM9 processor,You | ||
619 | can login www.mcuos.com or www.nuvoton.com to know more. | ||
620 | |||
621 | endchoice | 640 | endchoice |
622 | 641 | ||
623 | source "arch/arm/mach-clps711x/Kconfig" | 642 | source "arch/arm/mach-clps711x/Kconfig" |
@@ -681,9 +700,9 @@ source "arch/arm/mach-s3c6400/Kconfig" | |||
681 | source "arch/arm/mach-s3c6410/Kconfig" | 700 | source "arch/arm/mach-s3c6410/Kconfig" |
682 | endif | 701 | endif |
683 | 702 | ||
684 | source "arch/arm/mach-lh7a40x/Kconfig" | 703 | source "arch/arm/plat-stmp3xxx/Kconfig" |
685 | 704 | ||
686 | source "arch/arm/mach-imx/Kconfig" | 705 | source "arch/arm/mach-lh7a40x/Kconfig" |
687 | 706 | ||
688 | source "arch/arm/mach-h720x/Kconfig" | 707 | source "arch/arm/mach-h720x/Kconfig" |
689 | 708 | ||
@@ -707,6 +726,8 @@ source "arch/arm/mach-ks8695/Kconfig" | |||
707 | 726 | ||
708 | source "arch/arm/mach-msm/Kconfig" | 727 | source "arch/arm/mach-msm/Kconfig" |
709 | 728 | ||
729 | source "arch/arm/mach-u300/Kconfig" | ||
730 | |||
710 | source "arch/arm/mach-w90x900/Kconfig" | 731 | source "arch/arm/mach-w90x900/Kconfig" |
711 | 732 | ||
712 | # Definitions to make life easier | 733 | # Definitions to make life easier |
@@ -859,8 +880,11 @@ source "kernel/time/Kconfig" | |||
859 | 880 | ||
860 | config SMP | 881 | config SMP |
861 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" | 882 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" |
862 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP) | 883 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
884 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4) | ||
885 | depends on GENERIC_CLOCKEVENTS | ||
863 | select USE_GENERIC_SMP_HELPERS | 886 | select USE_GENERIC_SMP_HELPERS |
887 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4) | ||
864 | help | 888 | help |
865 | This enables support for systems with more than one CPU. If you have | 889 | This enables support for systems with more than one CPU. If you have |
866 | a system with only one CPU, like most personal computers, say N. If | 890 | a system with only one CPU, like most personal computers, say N. If |
@@ -878,6 +902,18 @@ config SMP | |||
878 | 902 | ||
879 | If you don't know what to do here, say N. | 903 | If you don't know what to do here, say N. |
880 | 904 | ||
905 | config HAVE_ARM_SCU | ||
906 | bool | ||
907 | depends on SMP | ||
908 | help | ||
909 | This option enables support for the ARM system coherency unit | ||
910 | |||
911 | config HAVE_ARM_TWD | ||
912 | bool | ||
913 | depends on SMP | ||
914 | help | ||
915 | This options enables support for the ARM timer and watchdog unit | ||
916 | |||
881 | choice | 917 | choice |
882 | prompt "Memory split" | 918 | prompt "Memory split" |
883 | default VMSPLIT_3G | 919 | default VMSPLIT_3G |
@@ -916,8 +952,10 @@ config HOTPLUG_CPU | |||
916 | 952 | ||
917 | config LOCAL_TIMERS | 953 | config LOCAL_TIMERS |
918 | bool "Use local timer interrupts" | 954 | bool "Use local timer interrupts" |
919 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP) | 955 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
956 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4) | ||
920 | default y | 957 | default y |
958 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4) | ||
921 | help | 959 | help |
922 | Enable support for local timers on SMP platforms, rather then the | 960 | Enable support for local timers on SMP platforms, rather then the |
923 | legacy IPI broadcast method. Local timers allows the system | 961 | legacy IPI broadcast method. Local timers allows the system |
@@ -979,7 +1017,6 @@ config OABI_COMPAT | |||
979 | 1017 | ||
980 | config ARCH_HAS_HOLES_MEMORYMODEL | 1018 | config ARCH_HAS_HOLES_MEMORYMODEL |
981 | bool | 1019 | bool |
982 | default n | ||
983 | 1020 | ||
984 | # Discontigmem is deprecated | 1021 | # Discontigmem is deprecated |
985 | config ARCH_DISCONTIGMEM_ENABLE | 1022 | config ARCH_DISCONTIGMEM_ENABLE |
@@ -1022,12 +1059,12 @@ source "mm/Kconfig" | |||
1022 | config LEDS | 1059 | config LEDS |
1023 | bool "Timer and CPU usage LEDs" | 1060 | bool "Timer and CPU usage LEDs" |
1024 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ | 1061 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
1025 | ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \ | 1062 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
1026 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ | 1063 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
1027 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ | 1064 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ |
1028 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ | 1065 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
1029 | ARCH_AT91 || ARCH_DAVINCI || \ | 1066 | ARCH_AT91 || ARCH_DAVINCI || \ |
1030 | ARCH_KS8695 || MACH_RD88F5182 | 1067 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
1031 | help | 1068 | help |
1032 | If you say Y here, the LEDs on your machine will be used | 1069 | If you say Y here, the LEDs on your machine will be used |
1033 | to provide useful information about your current system status. | 1070 | to provide useful information about your current system status. |
@@ -1085,6 +1122,22 @@ config ALIGNMENT_TRAP | |||
1085 | correct operation of some network protocols. With an IP-only | 1122 | correct operation of some network protocols. With an IP-only |
1086 | configuration it is safe to say N, otherwise say Y. | 1123 | configuration it is safe to say N, otherwise say Y. |
1087 | 1124 | ||
1125 | config UACCESS_WITH_MEMCPY | ||
1126 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" | ||
1127 | depends on MMU && EXPERIMENTAL | ||
1128 | default y if CPU_FEROCEON | ||
1129 | help | ||
1130 | Implement faster copy_to_user and clear_user methods for CPU | ||
1131 | cores where a 8-word STM instruction give significantly higher | ||
1132 | memory write throughput than a sequence of individual 32bit stores. | ||
1133 | |||
1134 | A possible side effect is a slight increase in scheduling latency | ||
1135 | between threads sharing the same address space if they invoke | ||
1136 | such copy operations with large buffers. | ||
1137 | |||
1138 | However, if the CPU data cache is using a write-allocate mode, | ||
1139 | this option is unlikely to provide any performance gain. | ||
1140 | |||
1088 | endmenu | 1141 | endmenu |
1089 | 1142 | ||
1090 | menu "Boot options" | 1143 | menu "Boot options" |
@@ -1188,7 +1241,7 @@ endmenu | |||
1188 | 1241 | ||
1189 | menu "CPU Power Management" | 1242 | menu "CPU Power Management" |
1190 | 1243 | ||
1191 | if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA) | 1244 | if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA) |
1192 | 1245 | ||
1193 | source "drivers/cpufreq/Kconfig" | 1246 | source "drivers/cpufreq/Kconfig" |
1194 | 1247 | ||
@@ -1213,14 +1266,11 @@ config CPU_FREQ_INTEGRATOR | |||
1213 | 1266 | ||
1214 | If in doubt, say Y. | 1267 | If in doubt, say Y. |
1215 | 1268 | ||
1216 | config CPU_FREQ_IMX | 1269 | config CPU_FREQ_PXA |
1217 | tristate "CPUfreq driver for i.MX CPUs" | 1270 | bool |
1218 | depends on ARCH_IMX && CPU_FREQ | 1271 | depends on CPU_FREQ && ARCH_PXA && PXA25x |
1219 | default n | 1272 | default y |
1220 | help | 1273 | select CPU_FREQ_DEFAULT_GOV_USERSPACE |
1221 | This enables the CPUfreq driver for i.MX CPUs. | ||
1222 | |||
1223 | If in doubt, say N. | ||
1224 | 1274 | ||
1225 | endif | 1275 | endif |
1226 | 1276 | ||