11da177e4SLinus Torvaldsmenu "Kernel hacking" 21da177e4SLinus Torvalds 31da177e4SLinus Torvaldssource "lib/Kconfig.debug" 41da177e4SLinus Torvalds 51fd15b87SRussell Kingconfig ARM_PTDUMP 61fd15b87SRussell King bool "Export kernel pagetable layout to userspace via debugfs" 71fd15b87SRussell King depends on DEBUG_KERNEL 81fd15b87SRussell King select DEBUG_FS 91fd15b87SRussell King ---help--- 101fd15b87SRussell King Say Y here if you want to show the kernel pagetable layout in a 111fd15b87SRussell King debugfs file. This information is only useful for kernel developers 121fd15b87SRussell King who are working in architecture specific areas of the kernel. 131fd15b87SRussell King It is probably not a good idea to enable this feature in a production 141fd15b87SRussell King kernel. 151fd15b87SRussell King If in doubt, say "N" 161fd15b87SRussell King 17087aaffcSNicolas Pitreconfig STRICT_DEVMEM 18087aaffcSNicolas Pitre bool "Filter access to /dev/mem" 19087aaffcSNicolas Pitre depends on MMU 20087aaffcSNicolas Pitre ---help--- 21087aaffcSNicolas Pitre If this option is disabled, you allow userspace (root) access to all 22087aaffcSNicolas Pitre of memory, including kernel and userspace memory. Accidental 23087aaffcSNicolas Pitre access to this is obviously disastrous, but specific access can 24087aaffcSNicolas Pitre be used by people debugging the kernel. 25087aaffcSNicolas Pitre 26087aaffcSNicolas Pitre If this option is switched on, the /dev/mem file only allows 27087aaffcSNicolas Pitre userspace access to memory mapped peripherals. 28087aaffcSNicolas Pitre 29087aaffcSNicolas Pitre If in doubt, say Y. 30087aaffcSNicolas Pitre 31adf8b37bSCatalin Marinas# RMK wants arm kernels compiled with frame pointers or stack unwinding. 321da177e4SLinus Torvalds# If you know what you are doing and are willing to live without stack 331da177e4SLinus Torvalds# traces, you can get a slightly smaller kernel by setting this option to 341da177e4SLinus Torvalds# n, but then RMK will have to kill you ;). 351da177e4SLinus Torvaldsconfig FRAME_POINTER 361da177e4SLinus Torvalds bool 3716c79651SCatalin Marinas depends on !THUMB2_KERNEL 380e341af8SRabin Vincent default y if !ARM_UNWIND || FUNCTION_GRAPH_TRACER 391da177e4SLinus Torvalds help 401da177e4SLinus Torvalds If you say N here, the resulting kernel will be slightly smaller and 41adf8b37bSCatalin Marinas faster. However, if neither FRAME_POINTER nor ARM_UNWIND are enabled, 42adf8b37bSCatalin Marinas when a problem occurs with the kernel, the information that is 43adf8b37bSCatalin Marinas reported is severely limited. 44adf8b37bSCatalin Marinas 45adf8b37bSCatalin Marinasconfig ARM_UNWIND 464a50bfe3SRussell King bool "Enable stack unwinding support (EXPERIMENTAL)" 47d6f94fa0SKees Cook depends on AEABI 48adf8b37bSCatalin Marinas default y 49adf8b37bSCatalin Marinas help 50adf8b37bSCatalin Marinas This option enables stack unwinding support in the kernel 51adf8b37bSCatalin Marinas using the information automatically generated by the 52adf8b37bSCatalin Marinas compiler. The resulting kernel image is slightly bigger but 53adf8b37bSCatalin Marinas the performance is not affected. Currently, this feature 54adf8b37bSCatalin Marinas only works with EABI compilers. If unsure say Y. 551da177e4SLinus Torvalds 5609bfafacSRabin Vincentconfig OLD_MCOUNT 5709bfafacSRabin Vincent bool 5809bfafacSRabin Vincent depends on FUNCTION_TRACER && FRAME_POINTER 5909bfafacSRabin Vincent default y 6009bfafacSRabin Vincent 611da177e4SLinus Torvaldsconfig DEBUG_USER 621da177e4SLinus Torvalds bool "Verbose user fault messages" 631da177e4SLinus Torvalds help 641da177e4SLinus Torvalds When a user program crashes due to an exception, the kernel can 651da177e4SLinus Torvalds print a brief message explaining what the problem was. This is 661da177e4SLinus Torvalds sometimes helpful for debugging but serves no purpose on a 671da177e4SLinus Torvalds production system. Most people should say N here. 681da177e4SLinus Torvalds 691da177e4SLinus Torvalds In addition, you need to pass user_debug=N on the kernel command 701da177e4SLinus Torvalds line to enable this feature. N consists of the sum of: 711da177e4SLinus Torvalds 721da177e4SLinus Torvalds 1 - undefined instruction events 731da177e4SLinus Torvalds 2 - system calls 741da177e4SLinus Torvalds 4 - invalid data aborts 751da177e4SLinus Torvalds 8 - SIGSEGV faults 761da177e4SLinus Torvalds 16 - SIGBUS faults 771da177e4SLinus Torvalds 781da177e4SLinus Torvalds# These options are only for real kernel hackers who want to get their hands dirty. 791da177e4SLinus Torvaldsconfig DEBUG_LL 804f5ef922SWill Deacon bool "Kernel low-level debugging functions (read help!)" 811da177e4SLinus Torvalds depends on DEBUG_KERNEL 821da177e4SLinus Torvalds help 8335efb606SRussell King Say Y here to include definitions of printascii, printch, printhex 841da177e4SLinus Torvalds in the kernel. This is helpful if you are debugging code that 851da177e4SLinus Torvalds executes before the console is initialized. 861da177e4SLinus Torvalds 874f5ef922SWill Deacon Note that selecting this option will limit the kernel to a single 884f5ef922SWill Deacon UART definition, as specified below. Attempting to boot the kernel 894f5ef922SWill Deacon image on a different platform *will not work*, so this option should 904f5ef922SWill Deacon not be enabled for kernels that are intended to be portable. 914f5ef922SWill Deacon 9217916b28SWill Deaconchoice 9317916b28SWill Deacon prompt "Kernel low-level debugging port" 9417916b28SWill Deacon depends on DEBUG_LL 9517916b28SWill Deacon 96d5bd4e8dSOleksij Rempel config DEBUG_ASM9260_UART 97d5bd4e8dSOleksij Rempel bool "Kernel low-level debugging via asm9260 UART" 98d5bd4e8dSOleksij Rempel depends on MACH_ASM9260 99d5bd4e8dSOleksij Rempel help 100d5bd4e8dSOleksij Rempel Say Y here if you want the debug print routines to direct 101d5bd4e8dSOleksij Rempel their output to an UART or USART port on asm9260 based 102d5bd4e8dSOleksij Rempel machines. 103d5bd4e8dSOleksij Rempel 104d5bd4e8dSOleksij Rempel DEBUG_UART_PHYS | DEBUG_UART_VIRT 105d5bd4e8dSOleksij Rempel 106d5bd4e8dSOleksij Rempel 0x80000000 | 0xf0000000 | UART0 107d5bd4e8dSOleksij Rempel 0x80004000 | 0xf0004000 | UART1 108d5bd4e8dSOleksij Rempel 0x80008000 | 0xf0008000 | UART2 109d5bd4e8dSOleksij Rempel 0x8000c000 | 0xf000c000 | UART3 110d5bd4e8dSOleksij Rempel 0x80010000 | 0xf0010000 | UART4 111d5bd4e8dSOleksij Rempel 0x80014000 | 0xf0014000 | UART5 112d5bd4e8dSOleksij Rempel 0x80018000 | 0xf0018000 | UART6 113d5bd4e8dSOleksij Rempel 0x8001c000 | 0xf001c000 | UART7 114d5bd4e8dSOleksij Rempel 0x80020000 | 0xf0020000 | UART8 115d5bd4e8dSOleksij Rempel 0x80024000 | 0xf0024000 | UART9 116d5bd4e8dSOleksij Rempel 11713079a73SJean-Christophe PLAGNIOL-VILLARD config AT91_DEBUG_LL_DBGU0 1185f58c970SAlexandre Belloni bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10, 9rl, 9x5, 9n12" 1195f58c970SAlexandre Belloni select DEBUG_AT91_UART 12042dfd1e1SNicolas Ferre depends on ARCH_AT91 121ae57d0c6SAlexandre Belloni depends on SOC_AT91RM9200 || SOC_AT91SAM9 12213079a73SJean-Christophe PLAGNIOL-VILLARD 12313079a73SJean-Christophe PLAGNIOL-VILLARD config AT91_DEBUG_LL_DBGU1 1245f58c970SAlexandre Belloni bool "Kernel low-level debugging on 9263, 9g45 and sama5d3" 1255f58c970SAlexandre Belloni select DEBUG_AT91_UART 12642dfd1e1SNicolas Ferre depends on ARCH_AT91 127ae57d0c6SAlexandre Belloni depends on SOC_AT91SAM9 || SOC_SAMA5 12813079a73SJean-Christophe PLAGNIOL-VILLARD 1292dc850b6SNicolas Ferre config AT91_DEBUG_LL_DBGU2 1302dc850b6SNicolas Ferre bool "Kernel low-level debugging on sama5d4" 1315f58c970SAlexandre Belloni select DEBUG_AT91_UART 13242dfd1e1SNicolas Ferre depends on ARCH_AT91 133ae57d0c6SAlexandre Belloni depends on SOC_SAMA5 1342dc850b6SNicolas Ferre 135f1ac922dSStephen Warren config DEBUG_BCM2835 136f1ac922dSStephen Warren bool "Kernel low-level debugging on BCM2835 PL011 UART" 137f1ac922dSStephen Warren depends on ARCH_BCM2835 1385c972af4SRussell King select DEBUG_UART_PL01X 139f1ac922dSStephen Warren 14006580275SHauke Mehrtens config DEBUG_BCM_5301X 14106580275SHauke Mehrtens bool "Kernel low-level debugging on BCM5301X UART1" 14206580275SHauke Mehrtens depends on ARCH_BCM_5301X 143140bd603SHauke Mehrtens select DEBUG_UART_8250 14406580275SHauke Mehrtens 145753d1243SChristian Daudt config DEBUG_BCM_KONA_UART 146753d1243SChristian Daudt bool "Kernel low-level debugging messages via BCM KONA UART" 1477aa2077bSFlorian Fainelli depends on ARCH_BCM_MOBILE 148753d1243SChristian Daudt select DEBUG_UART_8250 149753d1243SChristian Daudt help 150753d1243SChristian Daudt Say Y here if you want kernel low-level debugging support 151753d1243SChristian Daudt on Broadcom SoC platforms. 152753d1243SChristian Daudt This low level debug works for Broadcom 153753d1243SChristian Daudt mobile SoCs in the Kona family of chips (e.g. bcm28155, 154753d1243SChristian Daudt bcm11351, etc...) 155753d1243SChristian Daudt 156b51312beSFlorian Fainelli config DEBUG_BCM63XX 157b51312beSFlorian Fainelli bool "Kernel low-level debugging on BCM63XX UART" 158b51312beSFlorian Fainelli depends on ARCH_BCM_63XX 159b51312beSFlorian Fainelli select DEBUG_UART_BCM63XX 160b51312beSFlorian Fainelli 161caad0b41SSebastian Hesselbarth config DEBUG_BERLIN_UART 162caad0b41SSebastian Hesselbarth bool "Marvell Berlin SoC Debug UART" 163caad0b41SSebastian Hesselbarth depends on ARCH_BERLIN 164caad0b41SSebastian Hesselbarth select DEBUG_UART_8250 165caad0b41SSebastian Hesselbarth help 166caad0b41SSebastian Hesselbarth Say Y here if you want kernel low-level debugging support 167caad0b41SSebastian Hesselbarth on Marvell Berlin SoC based platforms. 168caad0b41SSebastian Hesselbarth 16981b43a6eSMarc Carino config DEBUG_BRCMSTB_UART 17081b43a6eSMarc Carino bool "Use BRCMSTB UART for low-level debug" 17181b43a6eSMarc Carino depends on ARCH_BRCMSTB 17281b43a6eSMarc Carino select DEBUG_UART_8250 17381b43a6eSMarc Carino help 17481b43a6eSMarc Carino Say Y here if you want the debug print routines to direct 17581b43a6eSMarc Carino their output to the first serial port on these devices. 17681b43a6eSMarc Carino 17781b43a6eSMarc Carino If you have a Broadcom STB chip and would like early print 17881b43a6eSMarc Carino messages to appear over the UART, select this option. 17981b43a6eSMarc Carino 180164acf96SStephen Boyd config DEBUG_CLPS711X_UART1 181164acf96SStephen Boyd bool "Kernel low-level debugging messages via UART1" 182164acf96SStephen Boyd depends on ARCH_CLPS711X 183164acf96SStephen Boyd help 184164acf96SStephen Boyd Say Y here if you want the debug print routines to direct 185164acf96SStephen Boyd their output to the first serial port on these devices. 18617916b28SWill Deacon 18717916b28SWill Deacon config DEBUG_CLPS711X_UART2 18817916b28SWill Deacon bool "Kernel low-level debugging messages via UART2" 18917916b28SWill Deacon depends on ARCH_CLPS711X 19017916b28SWill Deacon help 19117916b28SWill Deacon Say Y here if you want the debug print routines to direct 19217916b28SWill Deacon their output to the second serial port on these devices. 19317916b28SWill Deacon 19429c9b7beSArnd Bergmann config DEBUG_CNS3XXX 19529c9b7beSArnd Bergmann bool "Kernel Kernel low-level debugging on Cavium Networks CNS3xxx" 19629c9b7beSArnd Bergmann depends on ARCH_CNS3XXX 197b125170aSKrzysztof Hałasa select DEBUG_UART_8250 19829c9b7beSArnd Bergmann help 19929c9b7beSArnd Bergmann Say Y here if you want the debug print routines to direct 20029c9b7beSArnd Bergmann their output to the CNS3xxx UART0. 20129c9b7beSArnd Bergmann 202477099f1SUwe Kleine-König config DEBUG_DAVINCI_DA8XX_UART1 203477099f1SUwe Kleine-König bool "Kernel low-level debugging on DaVinci DA8XX using UART1" 204477099f1SUwe Kleine-König depends on ARCH_DAVINCI_DA8XX 20597bd1a48SRussell King select DEBUG_UART_8250 206477099f1SUwe Kleine-König help 207477099f1SUwe Kleine-König Say Y here if you want the debug print routines to direct 208477099f1SUwe Kleine-König their output to UART1 serial port on DaVinci DA8XX devices. 209477099f1SUwe Kleine-König 210477099f1SUwe Kleine-König config DEBUG_DAVINCI_DA8XX_UART2 211477099f1SUwe Kleine-König bool "Kernel low-level debugging on DaVinci DA8XX using UART2" 212477099f1SUwe Kleine-König depends on ARCH_DAVINCI_DA8XX 21397bd1a48SRussell King select DEBUG_UART_8250 214477099f1SUwe Kleine-König help 215477099f1SUwe Kleine-König Say Y here if you want the debug print routines to direct 216477099f1SUwe Kleine-König their output to UART2 serial port on DaVinci DA8XX devices. 217477099f1SUwe Kleine-König 218477099f1SUwe Kleine-König config DEBUG_DAVINCI_DMx_UART0 219477099f1SUwe Kleine-König bool "Kernel low-level debugging on DaVinci DMx using UART0" 220477099f1SUwe Kleine-König depends on ARCH_DAVINCI_DMx 22197bd1a48SRussell King select DEBUG_UART_8250 222477099f1SUwe Kleine-König help 223477099f1SUwe Kleine-König Say Y here if you want the debug print routines to direct 224477099f1SUwe Kleine-König their output to UART0 serial port on DaVinci DMx devices. 225477099f1SUwe Kleine-König 226aaf5e0beSNick Bowler config DEBUG_ZYNQ_UART0 227aaf5e0beSNick Bowler bool "Kernel low-level debugging on Xilinx Zynq using UART0" 228aaf5e0beSNick Bowler depends on ARCH_ZYNQ 229aaf5e0beSNick Bowler help 230aaf5e0beSNick Bowler Say Y here if you want the debug print routines to direct 231aaf5e0beSNick Bowler their output to UART0 on the Zynq platform. 232aaf5e0beSNick Bowler 233aaf5e0beSNick Bowler config DEBUG_ZYNQ_UART1 234aaf5e0beSNick Bowler bool "Kernel low-level debugging on Xilinx Zynq using UART1" 235aaf5e0beSNick Bowler depends on ARCH_ZYNQ 236aaf5e0beSNick Bowler help 237aaf5e0beSNick Bowler Say Y here if you want the debug print routines to direct 238aaf5e0beSNick Bowler their output to UART1 on the Zynq platform. 239aaf5e0beSNick Bowler 240aaf5e0beSNick Bowler If you have a ZC702 board and want early boot messages to 241aaf5e0beSNick Bowler appear on the USB serial adaptor, select this option. 242aaf5e0beSNick Bowler 243e76f4750SRussell King config DEBUG_DC21285_PORT 244e76f4750SRussell King bool "Kernel low-level debugging messages via footbridge serial port" 245e76f4750SRussell King depends on FOOTBRIDGE 246e76f4750SRussell King help 247e76f4750SRussell King Say Y here if you want the debug print routines to direct 248e76f4750SRussell King their output to the serial port in the DC21285 (Footbridge). 249e76f4750SRussell King 250e23814daSBaruch Siach config DEBUG_DIGICOLOR_UA0 251e23814daSBaruch Siach bool "Kernel low-level debugging messages via Digicolor UA0" 252e23814daSBaruch Siach depends on ARCH_DIGICOLOR 253e23814daSBaruch Siach help 254e23814daSBaruch Siach Say Y here if you want the debug print routines to direct 255e23814daSBaruch Siach their output to the UA0 serial port in the CX92755. 256e23814daSBaruch Siach 257e76f4750SRussell King config DEBUG_FOOTBRIDGE_COM1 258e76f4750SRussell King bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" 259e76f4750SRussell King depends on FOOTBRIDGE 260e76f4750SRussell King help 261e76f4750SRussell King Say Y here if you want the debug print routines to direct 262e76f4750SRussell King their output to the 8250 at PCI COM1. 263e76f4750SRussell King 2648d258bebSHaojian Zhuang config DEBUG_HI3620_UART 2658d258bebSHaojian Zhuang bool "Hisilicon HI3620 Debug UART" 2668d258bebSHaojian Zhuang depends on ARCH_HI3xxx 2678d258bebSHaojian Zhuang select DEBUG_UART_PL01X 2688d258bebSHaojian Zhuang help 2698d258bebSHaojian Zhuang Say Y here if you want kernel low-level debugging support 2708d258bebSHaojian Zhuang on HI3620 UART. 2718d258bebSHaojian Zhuang 2728d258bebSHaojian Zhuang config DEBUG_HI3716_UART 2738d258bebSHaojian Zhuang bool "Hisilicon Hi3716 Debug UART" 2748d258bebSHaojian Zhuang depends on ARCH_HI3xxx 2758d258bebSHaojian Zhuang select DEBUG_UART_PL01X 2768d258bebSHaojian Zhuang help 2778d258bebSHaojian Zhuang Say Y here if you want kernel low-level debugging support 2788d258bebSHaojian Zhuang on HI3716 UART. 2798d258bebSHaojian Zhuang 280220e6cf7SRob Herring config DEBUG_HIGHBANK_UART 281220e6cf7SRob Herring bool "Kernel low-level debugging messages via Highbank UART" 282220e6cf7SRob Herring depends on ARCH_HIGHBANK 2835c972af4SRussell King select DEBUG_UART_PL01X 284220e6cf7SRob Herring help 285220e6cf7SRob Herring Say Y here if you want the debug print routines to direct 286220e6cf7SRob Herring their output to the UART on Highbank based devices. 287220e6cf7SRob Herring 28827dafaa8SWang Long config DEBUG_HIP01_UART 28927dafaa8SWang Long bool "Hisilicon Hip01 Debug UART" 29027dafaa8SWang Long depends on ARCH_HIP01 29127dafaa8SWang Long select DEBUG_UART_8250 29227dafaa8SWang Long help 29327dafaa8SWang Long Say Y here if you want kernel low-level debugging support 29427dafaa8SWang Long on HIP01 UART. 29527dafaa8SWang Long 296c9a1df48SHaojian Zhuang config DEBUG_HIP04_UART 297c9a1df48SHaojian Zhuang bool "Hisilicon HiP04 Debug UART" 298c9a1df48SHaojian Zhuang depends on ARCH_HIP04 299c9a1df48SHaojian Zhuang select DEBUG_UART_8250 300c9a1df48SHaojian Zhuang help 301c9a1df48SHaojian Zhuang Say Y here if you want kernel low-level debugging support 302c9a1df48SHaojian Zhuang on HIP04 UART. 303c9a1df48SHaojian Zhuang 30437bdaf82SOlof Johansson config DEBUG_HIX5HD2_UART 30537bdaf82SOlof Johansson bool "Hisilicon Hix5hd2 Debug UART" 30637bdaf82SOlof Johansson depends on ARCH_HIX5HD2 30793fd03a8SCatalin Marinas select DEBUG_UART_PL01X 30893fd03a8SCatalin Marinas help 30937bdaf82SOlof Johansson Say Y here if you want kernel low-level debugging support 31037bdaf82SOlof Johansson on Hix5hd2 UART. 3111da177e4SLinus Torvalds 312f350b861SShawn Guo config DEBUG_IMX1_UART 313f350b861SShawn Guo bool "i.MX1 Debug UART" 314f350b861SShawn Guo depends on SOC_IMX1 315f350b861SShawn Guo help 316f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 317f350b861SShawn Guo on i.MX1. 318f350b861SShawn Guo 319f350b861SShawn Guo config DEBUG_IMX23_UART 320f350b861SShawn Guo bool "i.MX23 Debug UART" 321f350b861SShawn Guo depends on SOC_IMX23 3225c972af4SRussell King select DEBUG_UART_PL01X 323f350b861SShawn Guo help 324f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 325f350b861SShawn Guo on i.MX23. 326f350b861SShawn Guo 327f350b861SShawn Guo config DEBUG_IMX25_UART 328f350b861SShawn Guo bool "i.MX25 Debug UART" 329f350b861SShawn Guo depends on SOC_IMX25 330f350b861SShawn Guo help 331f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 332f350b861SShawn Guo on i.MX25. 333f350b861SShawn Guo 334f350b861SShawn Guo config DEBUG_IMX21_IMX27_UART 335f350b861SShawn Guo bool "i.MX21 and i.MX27 Debug UART" 336f350b861SShawn Guo depends on SOC_IMX21 || SOC_IMX27 337f350b861SShawn Guo help 338f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 339f350b861SShawn Guo on i.MX21 or i.MX27. 340f350b861SShawn Guo 341f350b861SShawn Guo config DEBUG_IMX28_UART 342f350b861SShawn Guo bool "i.MX28 Debug UART" 343f350b861SShawn Guo depends on SOC_IMX28 3445c972af4SRussell King select DEBUG_UART_PL01X 345f350b861SShawn Guo help 346f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 347f350b861SShawn Guo on i.MX28. 348f350b861SShawn Guo 3494ad625d4SShawn Guo config DEBUG_IMX31_UART 3504ad625d4SShawn Guo bool "i.MX31 Debug UART" 3514ad625d4SShawn Guo depends on SOC_IMX31 352f350b861SShawn Guo help 353f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 3544ad625d4SShawn Guo on i.MX31. 3554ad625d4SShawn Guo 3564ad625d4SShawn Guo config DEBUG_IMX35_UART 3574ad625d4SShawn Guo bool "i.MX35 Debug UART" 3584ad625d4SShawn Guo depends on SOC_IMX35 3594ad625d4SShawn Guo help 3604ad625d4SShawn Guo Say Y here if you want kernel low-level debugging support 3614ad625d4SShawn Guo on i.MX35. 362f350b861SShawn Guo 363ad364a70SGreg Ungerer config DEBUG_IMX50_UART 364ad364a70SGreg Ungerer bool "i.MX50 Debug UART" 365ad364a70SGreg Ungerer depends on SOC_IMX50 366ad364a70SGreg Ungerer help 367ad364a70SGreg Ungerer Say Y here if you want kernel low-level debugging support 368ad364a70SGreg Ungerer on i.MX50. 369ad364a70SGreg Ungerer 370f350b861SShawn Guo config DEBUG_IMX51_UART 371f350b861SShawn Guo bool "i.MX51 Debug UART" 372f350b861SShawn Guo depends on SOC_IMX51 373f350b861SShawn Guo help 374f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 375f350b861SShawn Guo on i.MX51. 376f350b861SShawn Guo 3777356420cSFabio Estevam config DEBUG_IMX53_UART 3787356420cSFabio Estevam bool "i.MX53 Debug UART" 3797356420cSFabio Estevam depends on SOC_IMX53 380f350b861SShawn Guo help 381f350b861SShawn Guo Say Y here if you want kernel low-level debugging support 3827356420cSFabio Estevam on i.MX53. 383f350b861SShawn Guo 38449c9e60eSShawn Guo config DEBUG_IMX6Q_UART 3853c03a2feSShawn Guo bool "i.MX6Q/DL Debug UART" 386785d7fabSDirk Behme depends on SOC_IMX6Q 387785d7fabSDirk Behme help 388785d7fabSDirk Behme Say Y here if you want kernel low-level debugging support 3893c03a2feSShawn Guo on i.MX6Q/DL. 390bac89d75SShawn Guo 39134e8a16bSShawn Guo config DEBUG_IMX6SL_UART 39234e8a16bSShawn Guo bool "i.MX6SL Debug UART" 39334e8a16bSShawn Guo depends on SOC_IMX6SL 39434e8a16bSShawn Guo help 39534e8a16bSShawn Guo Say Y here if you want kernel low-level debugging support 39634e8a16bSShawn Guo on i.MX6SL. 39734e8a16bSShawn Guo 39874368e81SShawn Guo config DEBUG_IMX6SX_UART 39974368e81SShawn Guo bool "i.MX6SX Debug UART" 40074368e81SShawn Guo depends on SOC_IMX6SX 40174368e81SShawn Guo help 40274368e81SShawn Guo Say Y here if you want kernel low-level debugging support 40374368e81SShawn Guo on i.MX6SX. 40474368e81SShawn Guo 405828989adSSantosh Shilimkar config DEBUG_KEYSTONE_UART0 406828989adSSantosh Shilimkar bool "Kernel low-level debugging on KEYSTONE2 using UART0" 407828989adSSantosh Shilimkar depends on ARCH_KEYSTONE 408f2acf003SRussell King select DEBUG_UART_8250 409828989adSSantosh Shilimkar help 410828989adSSantosh Shilimkar Say Y here if you want the debug print routines to direct 411828989adSSantosh Shilimkar their output to UART0 serial port on KEYSTONE2 devices. 412828989adSSantosh Shilimkar 413828989adSSantosh Shilimkar config DEBUG_KEYSTONE_UART1 414828989adSSantosh Shilimkar bool "Kernel low-level debugging on KEYSTONE2 using UART1" 415828989adSSantosh Shilimkar depends on ARCH_KEYSTONE 416f2acf003SRussell King select DEBUG_UART_8250 417828989adSSantosh Shilimkar help 418828989adSSantosh Shilimkar Say Y here if you want the debug print routines to direct 419828989adSSantosh Shilimkar their output to UART1 serial port on KEYSTONE2 devices. 420828989adSSantosh Shilimkar 421abbfb21eSDaniel Thompson config DEBUG_KS8695_UART 422abbfb21eSDaniel Thompson bool "KS8695 Debug UART" 423abbfb21eSDaniel Thompson depends on ARCH_KS8695 424abbfb21eSDaniel Thompson help 425abbfb21eSDaniel Thompson Say Y here if you want kernel low-level debugging support 426abbfb21eSDaniel Thompson on KS8695. 427abbfb21eSDaniel Thompson 428d8a00916SCarlo Caione config DEBUG_MESON_UARTAO 429d8a00916SCarlo Caione bool "Kernel low-level debugging via Meson6 UARTAO" 430d8a00916SCarlo Caione depends on ARCH_MESON 431d8a00916SCarlo Caione help 432d8a00916SCarlo Caione Say Y here if you want kernel low-lever debugging support 433d8a00916SCarlo Caione on Amlogic Meson6 based platforms on the UARTAO. 434d8a00916SCarlo Caione 435fa4cd2a8SHaojian Zhuang config DEBUG_MMP_UART2 436fa4cd2a8SHaojian Zhuang bool "Kernel low-level debugging message via MMP UART2" 437fa4cd2a8SHaojian Zhuang depends on ARCH_MMP 4384a003647SRussell King select DEBUG_UART_8250 439fa4cd2a8SHaojian Zhuang help 440fa4cd2a8SHaojian Zhuang Say Y here if you want kernel low-level debugging support 441fa4cd2a8SHaojian Zhuang on MMP UART2. 442fa4cd2a8SHaojian Zhuang 443fa4cd2a8SHaojian Zhuang config DEBUG_MMP_UART3 444fa4cd2a8SHaojian Zhuang bool "Kernel low-level debugging message via MMP UART3" 445fa4cd2a8SHaojian Zhuang depends on ARCH_MMP 4464a003647SRussell King select DEBUG_UART_8250 447fa4cd2a8SHaojian Zhuang help 448fa4cd2a8SHaojian Zhuang Say Y here if you want kernel low-level debugging support 449fa4cd2a8SHaojian Zhuang on MMP UART3. 450fa4cd2a8SHaojian Zhuang 4517098cff2SIvan T. Ivanov config DEBUG_MSM_UART 4527098cff2SIvan T. Ivanov bool "Kernel low-level debugging messages via MSM UART" 4537098cff2SIvan T. Ivanov depends on ARCH_MSM 454650e3f0dSStephen Boyd help 455650e3f0dSStephen Boyd Say Y here if you want the debug print routines to direct 4567098cff2SIvan T. Ivanov their output to the serial port on MSM devices. 457650e3f0dSStephen Boyd 45830cd6552SStephen Boyd ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT # 4597098cff2SIvan T. Ivanov MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1 4607098cff2SIvan T. Ivanov MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2 4617098cff2SIvan T. Ivanov MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3 462650e3f0dSStephen Boyd 4637098cff2SIvan T. Ivanov MSM7X30 0xaca00000 0xe1000000 UART1 4647098cff2SIvan T. Ivanov MSM7X30 0xacb00000 0xe1000000 UART2 4657098cff2SIvan T. Ivanov MSM7X30 0xacc00000 0xe1000000 UART3 466650e3f0dSStephen Boyd 4677098cff2SIvan T. Ivanov Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 4687098cff2SIvan T. Ivanov options based on your needs. 469a3d3ef9dSStephen Boyd 4707098cff2SIvan T. Ivanov config DEBUG_QCOM_UARTDM 4717098cff2SIvan T. Ivanov bool "Kernel low-level debugging messages via QCOM UARTDM" 4727098cff2SIvan T. Ivanov depends on ARCH_QCOM 473a3d3ef9dSStephen Boyd help 474a3d3ef9dSStephen Boyd Say Y here if you want the debug print routines to direct 4757098cff2SIvan T. Ivanov their output to the serial port on Qualcomm devices. 476a3d3ef9dSStephen Boyd 47730cd6552SStephen Boyd ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT 47830cd6552SStephen Boyd APQ8064 0x16640000 0xf0040000 4792f528dd3SGeorgi Djakov APQ8084 0xf995e000 0xfa75e000 4807098cff2SIvan T. Ivanov MSM8X60 0x19c40000 0xf0040000 4817098cff2SIvan T. Ivanov MSM8960 0x16440000 0xf0040000 4827098cff2SIvan T. Ivanov MSM8974 0xf991e000 0xfa71e000 4837098cff2SIvan T. Ivanov 4847098cff2SIvan T. Ivanov Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration 4857098cff2SIvan T. Ivanov options based on your needs. 4863c8828f6SRohit Vaswani 487d91125ddSMaxime Ripard config DEBUG_MVEBU_UART0 488d91125ddSMaxime Ripard bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" 489bfd5af99SRob Herring depends on ARCH_MVEBU 4904a003647SRussell King select DEBUG_UART_8250 491bfd5af99SRob Herring help 492bfd5af99SRob Herring Say Y here if you want kernel low-level debugging support 493d91125ddSMaxime Ripard on MVEBU based platforms on UART0. 494bfd5af99SRob Herring 495c2804cd6SThomas Petazzoni This option should be used with the old bootloaders 496c2804cd6SThomas Petazzoni that left the internal registers mapped at 497c2804cd6SThomas Petazzoni 0xd0000000. As of today, this is the case on 498c2804cd6SThomas Petazzoni platforms such as the Globalscale Mirabox or the 499c2804cd6SThomas Petazzoni Plathome OpenBlocks AX3, when using the original 500c2804cd6SThomas Petazzoni bootloader. 501c2804cd6SThomas Petazzoni 502c2804cd6SThomas Petazzoni If the wrong DEBUG_MVEBU_UART* option is selected, 503c2804cd6SThomas Petazzoni when u-boot hands over to the kernel, the system 504c2804cd6SThomas Petazzoni silently crashes, with no serial output at all. 505c2804cd6SThomas Petazzoni 506d91125ddSMaxime Ripard config DEBUG_MVEBU_UART0_ALTERNATE 507d91125ddSMaxime Ripard bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" 508c2804cd6SThomas Petazzoni depends on ARCH_MVEBU 5094a003647SRussell King select DEBUG_UART_8250 510c2804cd6SThomas Petazzoni help 511c2804cd6SThomas Petazzoni Say Y here if you want kernel low-level debugging support 512d91125ddSMaxime Ripard on MVEBU based platforms on UART0. 513c2804cd6SThomas Petazzoni 514c2804cd6SThomas Petazzoni This option should be used with the new bootloaders 515c2804cd6SThomas Petazzoni that remap the internal registers at 0xf1000000. 516c2804cd6SThomas Petazzoni 517c2804cd6SThomas Petazzoni If the wrong DEBUG_MVEBU_UART* option is selected, 518c2804cd6SThomas Petazzoni when u-boot hands over to the kernel, the system 519c2804cd6SThomas Petazzoni silently crashes, with no serial output at all. 520c2804cd6SThomas Petazzoni 521bd920490SMaxime Ripard config DEBUG_MVEBU_UART1_ALTERNATE 522bd920490SMaxime Ripard bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" 523bd920490SMaxime Ripard depends on ARCH_MVEBU 524bd920490SMaxime Ripard select DEBUG_UART_8250 525bd920490SMaxime Ripard help 526bd920490SMaxime Ripard Say Y here if you want kernel low-level debugging support 527bd920490SMaxime Ripard on MVEBU based platforms on UART1. 5281da177e4SLinus Torvalds 5291da177e4SLinus Torvalds This option should be used with the new bootloaders 5301da177e4SLinus Torvalds that remap the internal registers at 0xf1000000. 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds If the wrong DEBUG_MVEBU_UART* option is selected, 5331da177e4SLinus Torvalds when u-boot hands over to the kernel, the system 5341da177e4SLinus Torvalds silently crashes, with no serial output at all. 5351da177e4SLinus Torvalds 536c7c3eac6SShawn Guo config DEBUG_VF_UART 537c7c3eac6SShawn Guo bool "Vybrid UART" 538c7c3eac6SShawn Guo depends on SOC_VF610 539c7c3eac6SShawn Guo help 540c7c3eac6SShawn Guo Say Y here if you want kernel low-level debugging support 541c7c3eac6SShawn Guo on Vybrid based platforms. 542c7c3eac6SShawn Guo 5434d31e664SDaniel Thompson config DEBUG_NETX_UART 5444d31e664SDaniel Thompson bool "Kernel low-level debugging messages via NetX UART" 5454d31e664SDaniel Thompson depends on ARCH_NETX 5464d31e664SDaniel Thompson help 5474d31e664SDaniel Thompson Say Y here if you want kernel low-level debugging support 5484d31e664SDaniel Thompson on Hilscher NetX based platforms. 5494d31e664SDaniel Thompson 550266c3479SLinus Walleij config DEBUG_NOMADIK_UART 551266c3479SLinus Walleij bool "Kernel low-level debugging messages via NOMADIK UART" 552266c3479SLinus Walleij depends on ARCH_NOMADIK 5535c972af4SRussell King select DEBUG_UART_PL01X 554266c3479SLinus Walleij help 555266c3479SLinus Walleij Say Y here if you want kernel low-level debugging support 556266c3479SLinus Walleij on NOMADIK based platforms. 557266c3479SLinus Walleij 5589851ca57SDaniel Tang config DEBUG_NSPIRE_CLASSIC_UART 5599851ca57SDaniel Tang bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" 5609851ca57SDaniel Tang depends on ARCH_NSPIRE 5614a003647SRussell King select DEBUG_UART_8250 5629851ca57SDaniel Tang help 5639851ca57SDaniel Tang Say Y here if you want kernel low-level debugging support 5649851ca57SDaniel Tang on TI-NSPIRE classic models. 5659851ca57SDaniel Tang 5669851ca57SDaniel Tang config DEBUG_NSPIRE_CX_UART 5679851ca57SDaniel Tang bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" 5689851ca57SDaniel Tang depends on ARCH_NSPIRE 5695c972af4SRussell King select DEBUG_UART_PL01X 5709851ca57SDaniel Tang help 5719851ca57SDaniel Tang Say Y here if you want kernel low-level debugging support 5729851ca57SDaniel Tang on TI-NSPIRE CX models. 5739851ca57SDaniel Tang 574c26b9993SDaniel Thompson config DEBUG_OMAP1UART1 575c26b9993SDaniel Thompson bool "Kernel low-level debugging via OMAP1 UART1" 576c26b9993SDaniel Thompson depends on ARCH_OMAP1 577c26b9993SDaniel Thompson select DEBUG_UART_8250 578c26b9993SDaniel Thompson help 579c26b9993SDaniel Thompson Say Y here if you want kernel low-level debugging support 580c26b9993SDaniel Thompson on OMAP1 based platforms (except OMAP730) on the UART1. 581c26b9993SDaniel Thompson 582c26b9993SDaniel Thompson config DEBUG_OMAP1UART2 583c26b9993SDaniel Thompson bool "Kernel low-level debugging via OMAP1 UART2" 584c26b9993SDaniel Thompson depends on ARCH_OMAP1 585c26b9993SDaniel Thompson select DEBUG_UART_8250 586c26b9993SDaniel Thompson help 587c26b9993SDaniel Thompson Say Y here if you want kernel low-level debugging support 588c26b9993SDaniel Thompson on OMAP1 based platforms (except OMAP730) on the UART2. 589c26b9993SDaniel Thompson 590c26b9993SDaniel Thompson config DEBUG_OMAP1UART3 591c26b9993SDaniel Thompson bool "Kernel low-level debugging via OMAP1 UART3" 592c26b9993SDaniel Thompson depends on ARCH_OMAP1 593c26b9993SDaniel Thompson select DEBUG_UART_8250 594c26b9993SDaniel Thompson help 595c26b9993SDaniel Thompson Say Y here if you want kernel low-level debugging support 596c26b9993SDaniel Thompson on OMAP1 based platforms (except OMAP730) on the UART3. 597c26b9993SDaniel Thompson 598cce278d2SRussell King config DEBUG_OMAP2UART1 599cce278d2SRussell King bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" 600808b7e07STony Lindgren depends on ARCH_OMAP2PLUS 601cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 602808b7e07STony Lindgren help 603cce278d2SRussell King This covers at least h4, 2430sdp, 3430sdp, 3630sdp, 604cce278d2SRussell King omap3 torpedo and 3530 lv som. 605cce278d2SRussell King 606cce278d2SRussell King config DEBUG_OMAP2UART2 607cce278d2SRussell King bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" 608cce278d2SRussell King depends on ARCH_OMAP2PLUS 609cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 610cce278d2SRussell King 611cce278d2SRussell King config DEBUG_OMAP2UART3 612cce278d2SRussell King bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" 613cce278d2SRussell King depends on ARCH_OMAP2PLUS 614cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 615cce278d2SRussell King 616cce278d2SRussell King config DEBUG_OMAP3UART3 617cce278d2SRussell King bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" 618cce278d2SRussell King depends on ARCH_OMAP2PLUS 619cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 620cce278d2SRussell King help 621cce278d2SRussell King This covers at least cm_t3x, beagle, crane, devkit8000, 622cce278d2SRussell King igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, 623cce278d2SRussell King and 3517evm. 624cce278d2SRussell King 625cce278d2SRussell King config DEBUG_OMAP4UART3 626cce278d2SRussell King bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" 627cce278d2SRussell King depends on ARCH_OMAP2PLUS 628cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 629cce278d2SRussell King 630cce278d2SRussell King config DEBUG_OMAP3UART4 631cce278d2SRussell King bool "Kernel low-level debugging messages via OMAP36XX UART4" 632cce278d2SRussell King depends on ARCH_OMAP2PLUS 633cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 634cce278d2SRussell King 635cce278d2SRussell King config DEBUG_OMAP4UART4 636cce278d2SRussell King bool "Kernel low-level debugging messages via OMAP4/5 UART4" 637cce278d2SRussell King depends on ARCH_OMAP2PLUS 638cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 639cce278d2SRussell King 640c26b9993SDaniel Thompson config DEBUG_OMAP7XXUART1 641c26b9993SDaniel Thompson bool "Kernel low-level debugging via OMAP730 UART1" 642c26b9993SDaniel Thompson depends on ARCH_OMAP730 643c26b9993SDaniel Thompson select DEBUG_UART_8250 644c26b9993SDaniel Thompson help 645c26b9993SDaniel Thompson Say Y here if you want kernel low-level debugging support 646c26b9993SDaniel Thompson on OMAP730 based platforms on the UART1. 647c26b9993SDaniel Thompson 648c26b9993SDaniel Thompson config DEBUG_OMAP7XXUART2 649c26b9993SDaniel Thompson bool "Kernel low-level debugging via OMAP730 UART2" 650c26b9993SDaniel Thompson depends on ARCH_OMAP730 651c26b9993SDaniel Thompson select DEBUG_UART_8250 652c26b9993SDaniel Thompson help 653c26b9993SDaniel Thompson Say Y here if you want kernel low-level debugging support 654c26b9993SDaniel Thompson on OMAP730 based platforms on the UART2. 655c26b9993SDaniel Thompson 656c26b9993SDaniel Thompson config DEBUG_OMAP7XXUART3 657c26b9993SDaniel Thompson bool "Kernel low-level debugging via OMAP730 UART3" 658c26b9993SDaniel Thompson depends on ARCH_OMAP730 659c26b9993SDaniel Thompson select DEBUG_UART_8250 660c26b9993SDaniel Thompson help 661c26b9993SDaniel Thompson Say Y here if you want kernel low-level debugging support 662c26b9993SDaniel Thompson on OMAP730 based platforms on the UART3. 663c26b9993SDaniel Thompson 664cce278d2SRussell King config DEBUG_TI81XXUART1 665cce278d2SRussell King bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" 666cce278d2SRussell King depends on ARCH_OMAP2PLUS 667cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 668cce278d2SRussell King 669cce278d2SRussell King config DEBUG_TI81XXUART2 670cce278d2SRussell King bool "Kernel low-level debugging messages via TI81XX UART2" 671cce278d2SRussell King depends on ARCH_OMAP2PLUS 672cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 673cce278d2SRussell King 674cce278d2SRussell King config DEBUG_TI81XXUART3 675cce278d2SRussell King bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" 676cce278d2SRussell King depends on ARCH_OMAP2PLUS 677cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 678cce278d2SRussell King 679cce278d2SRussell King config DEBUG_AM33XXUART1 680cce278d2SRussell King bool "Kernel low-level debugging messages via AM33XX UART1" 681cce278d2SRussell King depends on ARCH_OMAP2PLUS 682cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 683cce278d2SRussell King 684cce278d2SRussell King config DEBUG_ZOOM_UART 685cce278d2SRussell King bool "Kernel low-level debugging messages via Zoom2/3 UART" 686cce278d2SRussell King depends on ARCH_OMAP2PLUS 687cce278d2SRussell King select DEBUG_OMAP2PLUS_UART 688808b7e07STony Lindgren 68959bba2a9SRob Herring config DEBUG_PICOXCELL_UART 69059bba2a9SRob Herring depends on ARCH_PICOXCELL 69159bba2a9SRob Herring bool "Use PicoXcell UART for low-level debug" 6920b4cccbeSRussell King select DEBUG_UART_8250 69359bba2a9SRob Herring help 69459bba2a9SRob Herring Say Y here if you want kernel low-level debugging support 69559bba2a9SRob Herring on PicoXcell based platforms. 69659bba2a9SRob Herring 6970a43cd3bSHaojian Zhuang config DEBUG_PXA_UART1 6980a43cd3bSHaojian Zhuang depends on ARCH_PXA 6990a43cd3bSHaojian Zhuang bool "Use PXA UART1 for low-level debug" 7004a003647SRussell King select DEBUG_UART_8250 7010a43cd3bSHaojian Zhuang help 7020a43cd3bSHaojian Zhuang Say Y here if you want kernel low-level debugging support 7030a43cd3bSHaojian Zhuang on PXA UART1. 7040a43cd3bSHaojian Zhuang 705e76f4750SRussell King config DEBUG_REALVIEW_STD_PORT 706e76f4750SRussell King bool "RealView Default UART" 707e76f4750SRussell King depends on ARCH_REALVIEW 7085c972af4SRussell King select DEBUG_UART_PL01X 709e76f4750SRussell King help 710e76f4750SRussell King Say Y here if you want the debug print routines to direct 711e76f4750SRussell King their output to the serial port on RealView EB, PB11MP, PBA8 712e76f4750SRussell King and PBX platforms. 713e76f4750SRussell King 714e76f4750SRussell King config DEBUG_REALVIEW_PB1176_PORT 715e76f4750SRussell King bool "RealView PB1176 UART" 716e76f4750SRussell King depends on MACH_REALVIEW_PB1176 7175c972af4SRussell King select DEBUG_UART_PL01X 718e76f4750SRussell King help 719e76f4750SRussell King Say Y here if you want the debug print routines to direct 720e76f4750SRussell King their output to the standard serial port on the RealView 721e76f4750SRussell King PB1176 platform. 722e76f4750SRussell King 723cce278d2SRussell King config DEBUG_RK29_UART0 724cce278d2SRussell King bool "Kernel low-level debugging messages via Rockchip RK29 UART0" 72538bd6892SHeiko Stuebner depends on ARCH_ROCKCHIP 7264a003647SRussell King select DEBUG_UART_8250 727cce278d2SRussell King help 728cce278d2SRussell King Say Y here if you want kernel low-level debugging support 729cce278d2SRussell King on Rockchip based platforms. 730cce278d2SRussell King 731cce278d2SRussell King config DEBUG_RK29_UART1 732cce278d2SRussell King bool "Kernel low-level debugging messages via Rockchip RK29 UART1" 733cce278d2SRussell King depends on ARCH_ROCKCHIP 7344a003647SRussell King select DEBUG_UART_8250 735cce278d2SRussell King help 736cce278d2SRussell King Say Y here if you want kernel low-level debugging support 737cce278d2SRussell King on Rockchip based platforms. 738cce278d2SRussell King 739cce278d2SRussell King config DEBUG_RK29_UART2 740cce278d2SRussell King bool "Kernel low-level debugging messages via Rockchip RK29 UART2" 741cce278d2SRussell King depends on ARCH_ROCKCHIP 7424a003647SRussell King select DEBUG_UART_8250 743cce278d2SRussell King help 744cce278d2SRussell King Say Y here if you want kernel low-level debugging support 745cce278d2SRussell King on Rockchip based platforms. 746cce278d2SRussell King 747cce278d2SRussell King config DEBUG_RK3X_UART0 748aa9c4f74SHeiko Stuebner bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" 749cce278d2SRussell King depends on ARCH_ROCKCHIP 7504a003647SRussell King select DEBUG_UART_8250 751cce278d2SRussell King help 752cce278d2SRussell King Say Y here if you want kernel low-level debugging support 753cce278d2SRussell King on Rockchip based platforms. 754cce278d2SRussell King 755cce278d2SRussell King config DEBUG_RK3X_UART1 756aa9c4f74SHeiko Stuebner bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" 757cce278d2SRussell King depends on ARCH_ROCKCHIP 7584a003647SRussell King select DEBUG_UART_8250 759cce278d2SRussell King help 760cce278d2SRussell King Say Y here if you want kernel low-level debugging support 761cce278d2SRussell King on Rockchip based platforms. 762cce278d2SRussell King 763cce278d2SRussell King config DEBUG_RK3X_UART2 764aa9c4f74SHeiko Stuebner bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" 765cce278d2SRussell King depends on ARCH_ROCKCHIP 7664a003647SRussell King select DEBUG_UART_8250 767cce278d2SRussell King help 768cce278d2SRussell King Say Y here if you want kernel low-level debugging support 769cce278d2SRussell King on Rockchip based platforms. 770cce278d2SRussell King 771cce278d2SRussell King config DEBUG_RK3X_UART3 772aa9c4f74SHeiko Stuebner bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" 773cce278d2SRussell King depends on ARCH_ROCKCHIP 7744a003647SRussell King select DEBUG_UART_8250 77538bd6892SHeiko Stuebner help 77638bd6892SHeiko Stuebner Say Y here if you want kernel low-level debugging support 77738bd6892SHeiko Stuebner on Rockchip based platforms. 77838bd6892SHeiko Stuebner 779efd02ee9SHeiko Stuebner config DEBUG_RK32_UART2 780efd02ee9SHeiko Stuebner bool "Kernel low-level debugging messages via Rockchip RK32 UART2" 781efd02ee9SHeiko Stuebner depends on ARCH_ROCKCHIP 782efd02ee9SHeiko Stuebner select DEBUG_UART_8250 783efd02ee9SHeiko Stuebner help 784efd02ee9SHeiko Stuebner Say Y here if you want kernel low-level debugging support 785efd02ee9SHeiko Stuebner on Rockchip RK32xx based platforms. 786efd02ee9SHeiko Stuebner 7877a2071c5SGeert Uytterhoeven config DEBUG_R7S72100_SCIF2 7887a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIF2 on R7S72100" 7897a2071c5SGeert Uytterhoeven depends on ARCH_R7S72100 7907a2071c5SGeert Uytterhoeven help 7917a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 7927a2071c5SGeert Uytterhoeven via SCIF2 on Renesas RZ/A1H (R7S72100). 7937a2071c5SGeert Uytterhoeven 7947a2071c5SGeert Uytterhoeven config DEBUG_RCAR_GEN1_SCIF0 7957a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIF0 on R8A7778" 7967a2071c5SGeert Uytterhoeven depends on ARCH_R8A7778 7977a2071c5SGeert Uytterhoeven help 7987a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 7997a2071c5SGeert Uytterhoeven via SCIF0 on Renesas R-Car M1A (R8A7778). 8007a2071c5SGeert Uytterhoeven 8017a2071c5SGeert Uytterhoeven config DEBUG_RCAR_GEN1_SCIF2 8027a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIF2 on R8A7779" 8037a2071c5SGeert Uytterhoeven depends on ARCH_R8A7779 8047a2071c5SGeert Uytterhoeven help 8057a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 8067a2071c5SGeert Uytterhoeven via SCIF2 on Renesas R-Car H1 (R8A7779). 8077a2071c5SGeert Uytterhoeven 8087a2071c5SGeert Uytterhoeven config DEBUG_RCAR_GEN2_SCIF0 809*e2fd51b7SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIF0 on R8A7790/R8A7791/R8A7793" 8107a2071c5SGeert Uytterhoeven depends on ARCH_R8A7790 || ARCH_R8A7791 || ARCH_R8A7793 8117a2071c5SGeert Uytterhoeven help 8127a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 8137a2071c5SGeert Uytterhoeven via SCIF0 on Renesas R-Car H2 (R8A7790), M2-W (R8A7791), or 8147a2071c5SGeert Uytterhoeven M2-N (R8A7793). 8157a2071c5SGeert Uytterhoeven 8167a2071c5SGeert Uytterhoeven config DEBUG_RCAR_GEN2_SCIF2 8177a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIF2 on R8A7794" 8187a2071c5SGeert Uytterhoeven depends on ARCH_R8A7794 8197a2071c5SGeert Uytterhoeven help 8207a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 8217a2071c5SGeert Uytterhoeven via SCIF2 on Renesas R-Car E2 (R8A7794). 8227a2071c5SGeert Uytterhoeven 8237a2071c5SGeert Uytterhoeven config DEBUG_RMOBILE_SCIFA0 8247a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4/SH7372" 8257a2071c5SGeert Uytterhoeven depends on ARCH_R8A73A4 || ARCH_SH7372 8267a2071c5SGeert Uytterhoeven help 8277a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 8287a2071c5SGeert Uytterhoeven via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4) or SH-Mobile 8297a2071c5SGeert Uytterhoeven AP4 (SH7372). 8307a2071c5SGeert Uytterhoeven 8317a2071c5SGeert Uytterhoeven config DEBUG_RMOBILE_SCIFA1 8327a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" 8337a2071c5SGeert Uytterhoeven depends on ARCH_R8A7740 8347a2071c5SGeert Uytterhoeven help 8357a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 8367a2071c5SGeert Uytterhoeven via SCIFA1 on Renesas R-Mobile A1 (R8A7740). 8377a2071c5SGeert Uytterhoeven 8387a2071c5SGeert Uytterhoeven config DEBUG_RMOBILE_SCIFA4 8397a2071c5SGeert Uytterhoeven bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" 8407a2071c5SGeert Uytterhoeven depends on ARCH_SH73A0 8417a2071c5SGeert Uytterhoeven help 8427a2071c5SGeert Uytterhoeven Say Y here if you want kernel low-level debugging support 8437a2071c5SGeert Uytterhoeven via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0). 8447a2071c5SGeert Uytterhoeven 845e76f4750SRussell King config DEBUG_S3C_UART0 846e76f4750SRussell King depends on PLAT_SAMSUNG 847a2e40710SArnd Bergmann select DEBUG_EXYNOS_UART if ARCH_EXYNOS 8481899de28SHeiko Stuebner select DEBUG_S3C24XX_UART if ARCH_S3C24XX 8497bab7d9eSTomasz Figa select DEBUG_S5PV210_UART if ARCH_S5PV210 8505cc8a016SSachin Kamat bool "Use Samsung S3C UART 0 for low-level debug" 851e76f4750SRussell King help 852e76f4750SRussell King Say Y here if you want the debug print routines to direct 853e76f4750SRussell King their output to UART 0. The port must have been initialised 854e76f4750SRussell King by the boot-loader before use. 855e76f4750SRussell King 856e76f4750SRussell King config DEBUG_S3C_UART1 857e76f4750SRussell King depends on PLAT_SAMSUNG 858a2e40710SArnd Bergmann select DEBUG_EXYNOS_UART if ARCH_EXYNOS 8591899de28SHeiko Stuebner select DEBUG_S3C24XX_UART if ARCH_S3C24XX 8607bab7d9eSTomasz Figa select DEBUG_S5PV210_UART if ARCH_S5PV210 8615cc8a016SSachin Kamat bool "Use Samsung S3C UART 1 for low-level debug" 862e76f4750SRussell King help 863e76f4750SRussell King Say Y here if you want the debug print routines to direct 864e76f4750SRussell King their output to UART 1. The port must have been initialised 865e76f4750SRussell King by the boot-loader before use. 866e76f4750SRussell King 867e76f4750SRussell King config DEBUG_S3C_UART2 868e76f4750SRussell King depends on PLAT_SAMSUNG 869a2e40710SArnd Bergmann select DEBUG_EXYNOS_UART if ARCH_EXYNOS 8701899de28SHeiko Stuebner select DEBUG_S3C24XX_UART if ARCH_S3C24XX 8717bab7d9eSTomasz Figa select DEBUG_S5PV210_UART if ARCH_S5PV210 8725cc8a016SSachin Kamat bool "Use Samsung S3C UART 2 for low-level debug" 873e76f4750SRussell King help 874e76f4750SRussell King Say Y here if you want the debug print routines to direct 875e76f4750SRussell King their output to UART 2. The port must have been initialised 876e76f4750SRussell King by the boot-loader before use. 877e76f4750SRussell King 8785fa23ddeSOlof Johansson config DEBUG_S3C_UART3 8797bab7d9eSTomasz Figa depends on PLAT_SAMSUNG && (ARCH_EXYNOS || ARCH_S5PV210) 8807bab7d9eSTomasz Figa select DEBUG_EXYNOS_UART if ARCH_EXYNOS 8817bab7d9eSTomasz Figa select DEBUG_S5PV210_UART if ARCH_S5PV210 8825cc8a016SSachin Kamat bool "Use Samsung S3C UART 3 for low-level debug" 8835fa23ddeSOlof Johansson help 8845fa23ddeSOlof Johansson Say Y here if you want the debug print routines to direct 8855fa23ddeSOlof Johansson their output to UART 3. The port must have been initialised 8865fa23ddeSOlof Johansson by the boot-loader before use. 8875fa23ddeSOlof Johansson 888daf67dfcSHeiko Stuebner config DEBUG_S3C2410_UART0 889daf67dfcSHeiko Stuebner depends on ARCH_S3C24XX 890daf67dfcSHeiko Stuebner select DEBUG_S3C2410_UART 891daf67dfcSHeiko Stuebner bool "Use S3C2410/S3C2412 UART 0 for low-level debug" 892daf67dfcSHeiko Stuebner help 893daf67dfcSHeiko Stuebner Say Y here if you want the debug print routines to direct 894daf67dfcSHeiko Stuebner their output to UART 0. The port must have been initialised 895daf67dfcSHeiko Stuebner by the boot-loader before use. 896daf67dfcSHeiko Stuebner 897daf67dfcSHeiko Stuebner config DEBUG_S3C2410_UART1 898daf67dfcSHeiko Stuebner depends on ARCH_S3C24XX 899daf67dfcSHeiko Stuebner select DEBUG_S3C2410_UART 900daf67dfcSHeiko Stuebner bool "Use S3C2410/S3C2412 UART 1 for low-level debug" 901daf67dfcSHeiko Stuebner help 902daf67dfcSHeiko Stuebner Say Y here if you want the debug print routines to direct 903daf67dfcSHeiko Stuebner their output to UART 1. The port must have been initialised 904daf67dfcSHeiko Stuebner by the boot-loader before use. 905daf67dfcSHeiko Stuebner 906daf67dfcSHeiko Stuebner config DEBUG_S3C2410_UART2 907daf67dfcSHeiko Stuebner depends on ARCH_S3C24XX 908daf67dfcSHeiko Stuebner select DEBUG_S3C2410_UART 909daf67dfcSHeiko Stuebner bool "Use S3C2410/S3C2412 UART 2 for low-level debug" 910daf67dfcSHeiko Stuebner help 911daf67dfcSHeiko Stuebner Say Y here if you want the debug print routines to direct 912daf67dfcSHeiko Stuebner their output to UART 2. The port must have been initialised 913daf67dfcSHeiko Stuebner by the boot-loader before use. 914daf67dfcSHeiko Stuebner 915e6131fa3SDmitry Eremin-Solenikov config DEBUG_SA1100 916e6131fa3SDmitry Eremin-Solenikov depends on ARCH_SA1100 917e6131fa3SDmitry Eremin-Solenikov bool "Use SA1100 UARTs for low-level debug" 918e6131fa3SDmitry Eremin-Solenikov help 919e6131fa3SDmitry Eremin-Solenikov Say Y here if you want kernel low-level debugging support 920e6131fa3SDmitry Eremin-Solenikov on SA-11x0 UART ports. The kernel will check for the first 921e6131fa3SDmitry Eremin-Solenikov enabled UART in a sequence 3-1-2. 922e6131fa3SDmitry Eremin-Solenikov 9236111bf7cSRob Herring config DEBUG_SOCFPGA_UART 9246111bf7cSRob Herring depends on ARCH_SOCFPGA 9256111bf7cSRob Herring bool "Use SOCFPGA UART for low-level debug" 9260b4cccbeSRussell King select DEBUG_UART_8250 9276111bf7cSRob Herring help 9286111bf7cSRob Herring Say Y here if you want kernel low-level debugging support 9296111bf7cSRob Herring on SOCFPGA based platforms. 9306111bf7cSRob Herring 931d4da889aSChen-Yu Tsai config DEBUG_SUN9I_UART0 932d4da889aSChen-Yu Tsai bool "Kernel low-level debugging messages via sun9i UART0" 933d4da889aSChen-Yu Tsai depends on MACH_SUN9I 934d4da889aSChen-Yu Tsai select DEBUG_UART_8250 935d4da889aSChen-Yu Tsai help 936d4da889aSChen-Yu Tsai Say Y here if you want kernel low-level debugging support 937d4da889aSChen-Yu Tsai on Allwinner A80 based platforms on the UART0. 938d4da889aSChen-Yu Tsai 939aa25115aSStefan Roese config DEBUG_SUNXI_UART0 940aa25115aSStefan Roese bool "Kernel low-level debugging messages via sunXi UART0" 941aa25115aSStefan Roese depends on ARCH_SUNXI 9424a003647SRussell King select DEBUG_UART_8250 943aa25115aSStefan Roese help 944aa25115aSStefan Roese Say Y here if you want kernel low-level debugging support 945aa25115aSStefan Roese on Allwinner A1X based platforms on the UART0. 946aa25115aSStefan Roese 947cb84fa18SMaxime Ripard config DEBUG_SUNXI_UART1 948cb84fa18SMaxime Ripard bool "Kernel low-level debugging messages via sunXi UART1" 949cb84fa18SMaxime Ripard depends on ARCH_SUNXI 9504a003647SRussell King select DEBUG_UART_8250 951cb84fa18SMaxime Ripard help 952cb84fa18SMaxime Ripard Say Y here if you want kernel low-level debugging support 953cb84fa18SMaxime Ripard on Allwinner A1X based platforms on the UART1. 954cb84fa18SMaxime Ripard 955c4718543SChen-Yu Tsai config DEBUG_SUNXI_R_UART 956c4718543SChen-Yu Tsai bool "Kernel low-level debugging messages via sunXi R_UART" 957c4718543SChen-Yu Tsai depends on MACH_SUN6I || MACH_SUN8I 958c4718543SChen-Yu Tsai select DEBUG_UART_8250 959c4718543SChen-Yu Tsai help 960c4718543SChen-Yu Tsai Say Y here if you want kernel low-level debugging support 961c4718543SChen-Yu Tsai on Allwinner A31/A23 based platforms on the R_UART. 962c4718543SChen-Yu Tsai 963cce278d2SRussell King config TEGRA_DEBUG_UART_AUTO_ODMDATA 964cce278d2SRussell King bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" 96546067803SStephen Warren depends on ARCH_TEGRA 966cce278d2SRussell King select DEBUG_TEGRA_UART 967cce278d2SRussell King help 968cce278d2SRussell King Automatically determines which UART to use for low-level 969cce278d2SRussell King debug based on the ODMDATA value. This value is part of 970cce278d2SRussell King the BCT, and is written to the boot memory device using 971cce278d2SRussell King nvflash, or other flashing tool. When bits 19:18 are 3, 972cce278d2SRussell King then bits 17:15 indicate which UART to use; 0/1/2/3/4 973cce278d2SRussell King are UART A/B/C/D/E. 974cce278d2SRussell King 975cce278d2SRussell King config TEGRA_DEBUG_UARTA 976cce278d2SRussell King bool "Kernel low-level debugging messages via Tegra UART A" 977cce278d2SRussell King depends on ARCH_TEGRA 978cce278d2SRussell King select DEBUG_TEGRA_UART 979cce278d2SRussell King help 980cce278d2SRussell King Say Y here if you want kernel low-level debugging support 981cce278d2SRussell King on Tegra based platforms. 982cce278d2SRussell King 983cce278d2SRussell King config TEGRA_DEBUG_UARTB 984cce278d2SRussell King bool "Kernel low-level debugging messages via Tegra UART B" 985cce278d2SRussell King depends on ARCH_TEGRA 986cce278d2SRussell King select DEBUG_TEGRA_UART 987cce278d2SRussell King help 988cce278d2SRussell King Say Y here if you want kernel low-level debugging support 989cce278d2SRussell King on Tegra based platforms. 990cce278d2SRussell King 991cce278d2SRussell King config TEGRA_DEBUG_UARTC 992cce278d2SRussell King bool "Kernel low-level debugging messages via Tegra UART C" 993cce278d2SRussell King depends on ARCH_TEGRA 994cce278d2SRussell King select DEBUG_TEGRA_UART 995cce278d2SRussell King help 996cce278d2SRussell King Say Y here if you want kernel low-level debugging support 997cce278d2SRussell King on Tegra based platforms. 998cce278d2SRussell King 999cce278d2SRussell King config TEGRA_DEBUG_UARTD 1000cce278d2SRussell King bool "Kernel low-level debugging messages via Tegra UART D" 1001cce278d2SRussell King depends on ARCH_TEGRA 1002cce278d2SRussell King select DEBUG_TEGRA_UART 1003cce278d2SRussell King help 1004cce278d2SRussell King Say Y here if you want kernel low-level debugging support 1005cce278d2SRussell King on Tegra based platforms. 1006cce278d2SRussell King 1007cce278d2SRussell King config TEGRA_DEBUG_UARTE 1008cce278d2SRussell King bool "Kernel low-level debugging messages via Tegra UART E" 1009cce278d2SRussell King depends on ARCH_TEGRA 1010cce278d2SRussell King select DEBUG_TEGRA_UART 101146067803SStephen Warren help 101246067803SStephen Warren Say Y here if you want kernel low-level debugging support 101346067803SStephen Warren on Tegra based platforms. 101446067803SStephen Warren 10157f46a107SBarry Song config DEBUG_SIRFPRIMA2_UART1 10167f46a107SBarry Song bool "Kernel low-level debugging messages via SiRFprimaII UART1" 10177f46a107SBarry Song depends on ARCH_PRIMA2 101801ea63d9SGuo Zeng select DEBUG_SIRFSOC_UART 10197f46a107SBarry Song help 10207f46a107SBarry Song Say Y here if you want the debug print routines to direct 10217f46a107SBarry Song their output to the uart1 port on SiRFprimaII devices. 10227f46a107SBarry Song 102301ea63d9SGuo Zeng config DEBUG_SIRFATLAS7_UART0 102401ea63d9SGuo Zeng bool "Kernel low-level debugging messages via SiRFatlas7 UART0" 102501ea63d9SGuo Zeng depends on ARCH_ATLAS7 102601ea63d9SGuo Zeng select DEBUG_SIRFSOC_UART 10277f46a107SBarry Song help 10287f46a107SBarry Song Say Y here if you want the debug print routines to direct 102901ea63d9SGuo Zeng their output to the uart0 port on SiRFATLAS7 devices.The uart0 103001ea63d9SGuo Zeng is used on SiRFATLAS7 as a extra debug port.sometimes an extra 103101ea63d9SGuo Zeng debug port can be very useful. 103201ea63d9SGuo Zeng 103301ea63d9SGuo Zeng config DEBUG_SIRFATLAS7_UART1 103401ea63d9SGuo Zeng bool "Kernel low-level debugging messages via SiRFatlas7 UART1" 103501ea63d9SGuo Zeng depends on ARCH_ATLAS7 103601ea63d9SGuo Zeng select DEBUG_SIRFSOC_UART 103701ea63d9SGuo Zeng help 103801ea63d9SGuo Zeng Say Y here if you want the debug print routines to direct 103901ea63d9SGuo Zeng their output to the uart1 port on SiRFATLAS7 devices. 10407f46a107SBarry Song 1041cce278d2SRussell King config STIH41X_DEBUG_ASC2 1042cce278d2SRussell King bool "Use StiH415/416 ASC2 UART for low-level debug" 10435562b800SArnd Bergmann depends on ARCH_STI 1044cce278d2SRussell King select DEBUG_STI_UART 10455562b800SArnd Bergmann help 10465562b800SArnd Bergmann Say Y here if you want kernel low-level debugging support 1047cce278d2SRussell King on STiH415/416 based platforms like b2000, which has 1048cce278d2SRussell King default UART wired up to ASC2. 1049cce278d2SRussell King 1050cce278d2SRussell King If unsure, say N. 1051cce278d2SRussell King 1052cce278d2SRussell King config STIH41X_DEBUG_SBC_ASC1 1053cce278d2SRussell King bool "Use StiH415/416 SBC ASC1 UART for low-level debug" 1054cce278d2SRussell King depends on ARCH_STI 1055cce278d2SRussell King select DEBUG_STI_UART 1056cce278d2SRussell King help 1057cce278d2SRussell King Say Y here if you want kernel low-level debugging support 1058cce278d2SRussell King on STiH415/416 based platforms like b2020. which has 1059cce278d2SRussell King default UART wired up to SBC ASC1. 10605562b800SArnd Bergmann 10615562b800SArnd Bergmann If unsure, say N. 10625562b800SArnd Bergmann 1063dd324da7SLinus Walleij config DEBUG_U300_UART 1064dd324da7SLinus Walleij bool "Kernel low-level debugging messages via U300 UART0" 1065dd324da7SLinus Walleij depends on ARCH_U300 10665c972af4SRussell King select DEBUG_UART_PL01X 1067dd324da7SLinus Walleij help 1068dd324da7SLinus Walleij Say Y here if you want the debug print routines to direct 1069dd324da7SLinus Walleij their output to the uart port on U300 devices. 1070dd324da7SLinus Walleij 1071f87b95ddSLinus Walleij config DEBUG_UX500_UART 1072f87b95ddSLinus Walleij depends on ARCH_U8500 1073f87b95ddSLinus Walleij bool "Use Ux500 UART for low-level debug" 1074f87b95ddSLinus Walleij help 1075f87b95ddSLinus Walleij Say Y here if you want kernel low-level debugging support 1076f87b95ddSLinus Walleij on Ux500 based platforms. 1077f87b95ddSLinus Walleij 1078d6682085SMatthias Brugger config DEBUG_MT6589_UART0 1079d6682085SMatthias Brugger bool "Mediatek mt6589 UART0" 1080d6682085SMatthias Brugger depends on ARCH_MEDIATEK 1081d6682085SMatthias Brugger select DEBUG_UART_8250 1082d6682085SMatthias Brugger help 1083d6682085SMatthias Brugger Say Y here if you want kernel low-level debugging support 1084d6682085SMatthias Brugger for Mediatek mt6589 based platforms on UART0. 1085d6682085SMatthias Brugger 108665ec48c0SJoe.C config DEBUG_MT8127_UART0 108760851d7aSMatthias Brugger bool "Mediatek mt8127/mt6592 UART0" 108865ec48c0SJoe.C depends on ARCH_MEDIATEK 108965ec48c0SJoe.C select DEBUG_UART_8250 109065ec48c0SJoe.C help 109165ec48c0SJoe.C Say Y here if you want kernel low-level debugging support 109265ec48c0SJoe.C for Mediatek mt8127 based platforms on UART0. 109365ec48c0SJoe.C 109465ec48c0SJoe.C config DEBUG_MT8135_UART3 109565ec48c0SJoe.C bool "Mediatek mt8135 UART3" 109665ec48c0SJoe.C depends on ARCH_MEDIATEK 109765ec48c0SJoe.C select DEBUG_UART_8250 109865ec48c0SJoe.C help 109965ec48c0SJoe.C Say Y here if you want kernel low-level debugging support 110065ec48c0SJoe.C for Mediatek mt8135 based platforms on UART3. 110165ec48c0SJoe.C 11021b820eafSPawel Moll config DEBUG_VEXPRESS_UART0_DETECT 11031b820eafSPawel Moll bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" 11041b820eafSPawel Moll depends on ARCH_VEXPRESS && CPU_CP15_MMU 11051b820eafSPawel Moll help 11061b820eafSPawel Moll This option enables a simple heuristic which tries to determine 11071b820eafSPawel Moll the motherboard's memory map variant (original or RS1) and then 11081b820eafSPawel Moll choose the relevant UART0 base address. 11091b820eafSPawel Moll 11101b820eafSPawel Moll Note that this will only work with standard A-class core tiles, 11111b820eafSPawel Moll and may fail with non-standard SMM or custom software models. 11121b820eafSPawel Moll 11131b820eafSPawel Moll config DEBUG_VEXPRESS_UART0_CA9 11141b820eafSPawel Moll bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" 11151b820eafSPawel Moll depends on ARCH_VEXPRESS 11165c972af4SRussell King select DEBUG_UART_PL01X 11171b820eafSPawel Moll help 11181b820eafSPawel Moll This option selects UART0 at 0x10009000. Except for custom models, 11191b820eafSPawel Moll this applies only to the V2P-CA9 tile. 11201b820eafSPawel Moll 11211b820eafSPawel Moll config DEBUG_VEXPRESS_UART0_RS1 11221b820eafSPawel Moll bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" 11231b820eafSPawel Moll depends on ARCH_VEXPRESS 11245c972af4SRussell King select DEBUG_UART_PL01X 11251b820eafSPawel Moll help 11261b820eafSPawel Moll This option selects UART0 at 0x1c090000. This applies to most 11271b820eafSPawel Moll of the tiles using the RS1 memory map, including all new A-class 11281b820eafSPawel Moll core tiles, FPGA-based SMMs and software models. 11291b820eafSPawel Moll 1130ed18bdc8SJonathan Austin config DEBUG_VEXPRESS_UART0_CRX 1131ed18bdc8SJonathan Austin bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" 1132ed18bdc8SJonathan Austin depends on ARCH_VEXPRESS && !MMU 11335c972af4SRussell King select DEBUG_UART_PL01X 1134ed18bdc8SJonathan Austin help 1135ed18bdc8SJonathan Austin This option selects UART0 at 0xb0090000. This is appropriate for 1136ed18bdc8SJonathan Austin Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7 1137ed18bdc8SJonathan Austin 1138b61a2722STony Prisk config DEBUG_VT8500_UART0 1139b61a2722STony Prisk bool "Use UART0 on VIA/Wondermedia SoCs" 1140b61a2722STony Prisk depends on ARCH_VT8500 1141b61a2722STony Prisk help 1142b61a2722STony Prisk This option selects UART0 on VIA/Wondermedia System-on-a-chip 1143b61a2722STony Prisk devices, including VT8500, WM8505, WM8650 and WM8850. 1144b61a2722STony Prisk 1145e76f4750SRussell King config DEBUG_ICEDCC 1146e76f4750SRussell King bool "Kernel low-level debugging via EmbeddedICE DCC channel" 1147e76f4750SRussell King help 1148e76f4750SRussell King Say Y here if you want the debug print routines to direct 1149e76f4750SRussell King their output to the EmbeddedICE macrocell's DCC channel using 1150e76f4750SRussell King co-processor 14. This is known to work on the ARM9 style ICE 1151e76f4750SRussell King channel and on the XScale with the PEEDI. 1152e76f4750SRussell King 1153e76f4750SRussell King Note that the system will appear to hang during boot if there 1154e76f4750SRussell King is nothing connected to read from the DCC. 1155e76f4750SRussell King 1156b0df8986SRussell King config DEBUG_SEMIHOSTING 115762194bdaSStephen Boyd bool "Kernel low-level debug output via semihosting I/O" 1158b0df8986SRussell King help 1159b0df8986SRussell King Semihosting enables code running on an ARM target to use 1160b0df8986SRussell King the I/O facilities on a host debugger/emulator through a 116162194bdaSStephen Boyd simple SVC call. The host debugger or emulator must have 1162b0df8986SRussell King semihosting enabled for the special svc call to be trapped 1163b0df8986SRussell King otherwise the kernel will crash. 1164b0df8986SRussell King 1165b0df8986SRussell King This is known to work with OpenOCD, as well as 1166b0df8986SRussell King ARM's Fast Models, or any other controlling environment 1167b0df8986SRussell King that implements semihosting. 1168b0df8986SRussell King 1169b0df8986SRussell King For more details about semihosting, please see 1170b0df8986SRussell King chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. 1171b0df8986SRussell King 1172f8f1279cSRussell King config DEBUG_LL_UART_8250 1173f8f1279cSRussell King bool "Kernel low-level debugging via 8250 UART" 1174f8f1279cSRussell King help 1175f8f1279cSRussell King Say Y here if you wish the debug print routes to direct 1176f8f1279cSRussell King their output to an 8250 UART. You can use this option 1177f8f1279cSRussell King to provide the parameters for the 8250 UART rather than 1178f8f1279cSRussell King selecting one of the platform specific options above if 1179f8f1279cSRussell King you know the parameters for the port. 1180f8f1279cSRussell King 1181f8f1279cSRussell King This option is preferred over the platform specific 1182f8f1279cSRussell King options; the platform specific options are deprecated 1183f8f1279cSRussell King and will be soon removed. 1184f8f1279cSRussell King 1185494e492dSUwe Kleine-König config DEBUG_LL_UART_EFM32 1186494e492dSUwe Kleine-König bool "Kernel low-level debugging via efm32 UART" 1187494e492dSUwe Kleine-König depends on ARCH_EFM32 1188494e492dSUwe Kleine-König help 1189494e492dSUwe Kleine-König Say Y here if you want the debug print routines to direct 1190494e492dSUwe Kleine-König their output to an UART or USART port on efm32 based 1191494e492dSUwe Kleine-König machines. Use the following addresses for DEBUG_UART_PHYS: 1192494e492dSUwe Kleine-König 1193494e492dSUwe Kleine-König 0x4000c000 | USART0 1194494e492dSUwe Kleine-König 0x4000c400 | USART1 1195494e492dSUwe Kleine-König 0x4000c800 | USART2 1196494e492dSUwe Kleine-König 0x4000e000 | UART0 1197494e492dSUwe Kleine-König 0x4000e400 | UART1 1198494e492dSUwe Kleine-König 1199f8f1279cSRussell King config DEBUG_LL_UART_PL01X 1200f8f1279cSRussell King bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" 1201f8f1279cSRussell King help 1202f8f1279cSRussell King Say Y here if you wish the debug print routes to direct 1203f8f1279cSRussell King their output to a PL01x Primecell UART. You can use 1204f8f1279cSRussell King this option to provide the parameters for the UART 1205f8f1279cSRussell King rather than selecting one of the platform specific 1206f8f1279cSRussell King options above if you know the parameters for the port. 1207f8f1279cSRussell King 1208f8f1279cSRussell King This option is preferred over the platform specific 1209f8f1279cSRussell King options; the platform specific options are deprecated 1210f8f1279cSRussell King and will be soon removed. 1211f8f1279cSRussell King 12121da177e4SLinus Torvaldsendchoice 12131da177e4SLinus Torvalds 121442dfd1e1SNicolas Ferreconfig DEBUG_AT91_UART 121542dfd1e1SNicolas Ferre bool 121642dfd1e1SNicolas Ferre depends on ARCH_AT91 121742dfd1e1SNicolas Ferre 1218a2e40710SArnd Bergmannconfig DEBUG_EXYNOS_UART 1219a2e40710SArnd Bergmann bool 1220a2e40710SArnd Bergmann 1221daf67dfcSHeiko Stuebnerconfig DEBUG_S3C2410_UART 1222daf67dfcSHeiko Stuebner bool 12231899de28SHeiko Stuebner select DEBUG_S3C24XX_UART 12241899de28SHeiko Stuebner 12251899de28SHeiko Stuebnerconfig DEBUG_S3C24XX_UART 12261899de28SHeiko Stuebner bool 1227daf67dfcSHeiko Stuebner 12287bab7d9eSTomasz Figaconfig DEBUG_S5PV210_UART 12297bab7d9eSTomasz Figa bool 12307bab7d9eSTomasz Figa 1231cce278d2SRussell Kingconfig DEBUG_OMAP2PLUS_UART 1232cce278d2SRussell King bool 1233cce278d2SRussell King depends on ARCH_OMAP2PLUS 1234cce278d2SRussell King 1235f8c95fe6SShawn Guoconfig DEBUG_IMX_UART_PORT 1236f8c95fe6SShawn Guo int "i.MX Debug UART Port Selection" if DEBUG_IMX1_UART || \ 1237f8c95fe6SShawn Guo DEBUG_IMX25_UART || \ 1238f8c95fe6SShawn Guo DEBUG_IMX21_IMX27_UART || \ 1239f8c95fe6SShawn Guo DEBUG_IMX31_UART || \ 1240f8c95fe6SShawn Guo DEBUG_IMX35_UART || \ 1241ad364a70SGreg Ungerer DEBUG_IMX50_UART || \ 1242f8c95fe6SShawn Guo DEBUG_IMX51_UART || \ 12430c52db7eSPaul Bolle DEBUG_IMX53_UART || \ 124434e8a16bSShawn Guo DEBUG_IMX6Q_UART || \ 124574368e81SShawn Guo DEBUG_IMX6SL_UART || \ 124674368e81SShawn Guo DEBUG_IMX6SX_UART 124749c9e60eSShawn Guo default 1 1248287939a3SShawn Guo depends on ARCH_MXC 124949c9e60eSShawn Guo help 125049c9e60eSShawn Guo Choose UART port on which kernel low-level debug messages 125149c9e60eSShawn Guo should be output. 125249c9e60eSShawn Guo 1253cfdb7d56SStefan Agnerconfig DEBUG_VF_UART_PORT 1254cfdb7d56SStefan Agner int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART 1255cfdb7d56SStefan Agner default 1 1256cfdb7d56SStefan Agner range 0 3 1257cfdb7d56SStefan Agner depends on SOC_VF610 1258cfdb7d56SStefan Agner help 1259cfdb7d56SStefan Agner Choose UART port on which kernel low-level debug messages 1260cfdb7d56SStefan Agner should be output. 1261cfdb7d56SStefan Agner 1262cce278d2SRussell Kingconfig DEBUG_TEGRA_UART 1263cce278d2SRussell King bool 1264cce278d2SRussell King depends on ARCH_TEGRA 1265808b7e07STony Lindgren 1266cce278d2SRussell Kingconfig DEBUG_STI_UART 1267cce278d2SRussell King bool 1268cce278d2SRussell King depends on ARCH_STI 12695026aecfSSrinivas Kandagatla 127001ea63d9SGuo Zengconfig DEBUG_SIRFSOC_UART 127101ea63d9SGuo Zeng bool 127201ea63d9SGuo Zeng depends on ARCH_SIRF 127301ea63d9SGuo Zeng 127491a9fec0SRob Herringconfig DEBUG_LL_INCLUDE 127591a9fec0SRob Herring string 1276e6131fa3SDmitry Eremin-Solenikov default "debug/sa1100.S" if DEBUG_SA1100 1277f8f1279cSRussell King default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 127842dfd1e1SNicolas Ferre default "debug/at91.S" if DEBUG_AT91_UART 1279d5bd4e8dSOleksij Rempel default "debug/asm9260.S" if DEBUG_ASM9260_UART 1280dd99eef5SAlexander Shiyan default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 1281d8a00916SCarlo Caione default "debug/meson.S" if DEBUG_MESON_UARTAO 1282f8f1279cSRussell King default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X 1283a2e40710SArnd Bergmann default "debug/exynos.S" if DEBUG_EXYNOS_UART 1284494e492dSUwe Kleine-König default "debug/efm32.S" if DEBUG_LL_UART_EFM32 128591a9fec0SRob Herring default "debug/icedcc.S" if DEBUG_ICEDCC 12866dde5ac5SShawn Guo default "debug/imx.S" if DEBUG_IMX1_UART || \ 12876dde5ac5SShawn Guo DEBUG_IMX25_UART || \ 12886dde5ac5SShawn Guo DEBUG_IMX21_IMX27_UART || \ 12894ad625d4SShawn Guo DEBUG_IMX31_UART || \ 12904ad625d4SShawn Guo DEBUG_IMX35_UART || \ 1291ad364a70SGreg Ungerer DEBUG_IMX50_UART || \ 12926dde5ac5SShawn Guo DEBUG_IMX51_UART || \ 12937356420cSFabio Estevam DEBUG_IMX53_UART ||\ 129434e8a16bSShawn Guo DEBUG_IMX6Q_UART || \ 129574368e81SShawn Guo DEBUG_IMX6SL_UART || \ 129674368e81SShawn Guo DEBUG_IMX6SX_UART 1297abbfb21eSDaniel Thompson default "debug/ks8695.S" if DEBUG_KS8695_UART 12987098cff2SIvan T. Ivanov default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM 12994d31e664SDaniel Thompson default "debug/netx.S" if DEBUG_NETX_UART 1300808b7e07STony Lindgren default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART 13017a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 13027a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 13037a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 13047a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 13057a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 13067a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 13077a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 13087a2071c5SGeert Uytterhoeven default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 13092cd62bd4SHeiko Stuebner default "debug/s3c24xx.S" if DEBUG_S3C24XX_UART 13107bab7d9eSTomasz Figa default "debug/s5pv210.S" if DEBUG_S5PV210_UART 131101ea63d9SGuo Zeng default "debug/sirf.S" if DEBUG_SIRFSOC_UART 13125026aecfSSrinivas Kandagatla default "debug/sti.S" if DEBUG_STI_UART 1313150a8dcfSLinus Torvalds default "debug/tegra.S" if DEBUG_TEGRA_UART 1314150a8dcfSLinus Torvalds default "debug/ux500.S" if DEBUG_UX500_UART 13154e218b99SRussell King default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT 1316c7c3eac6SShawn Guo default "debug/vf.S" if DEBUG_VF_UART 1317b61a2722STony Prisk default "debug/vt8500.S" if DEBUG_VT8500_UART0 1318385f02b1SJosh Cartwright default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 1319b51312beSFlorian Fainelli default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX 1320e23814daSBaruch Siach default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 132191a9fec0SRob Herring default "mach/debug-macro.S" 132291a9fec0SRob Herring 1323f8f1279cSRussell King# Compatibility options for PL01x 13245c972af4SRussell Kingconfig DEBUG_UART_PL01X 1325a61cbf51SDaniel Thompson bool 13265c972af4SRussell King 1327f8f1279cSRussell King# Compatibility options for 8250 13287610b607SRussell Kingconfig DEBUG_UART_8250 13294a003647SRussell King def_bool ARCH_DOVE || ARCH_EBSA110 || \ 13304a003647SRussell King (FOOTBRIDGE && !DEBUG_DC21285_PORT) || \ 13314a003647SRussell King ARCH_GEMINI || ARCH_IOP13XX || ARCH_IOP32X || \ 1332ba364fc7SAndrew Lunn ARCH_IOP33X || ARCH_IXP4XX || \ 13334a003647SRussell King ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC 13344a003647SRussell King 1335b51312beSFlorian Fainelli# Compatibility options for BCM63xx 1336b51312beSFlorian Fainelliconfig DEBUG_UART_BCM63XX 1337b51312beSFlorian Fainelli def_bool ARCH_BCM_63XX 1338b51312beSFlorian Fainelli 1339c3faa9b7SRussell Kingconfig DEBUG_UART_PHYS 1340c3faa9b7SRussell King hex "Physical base address of debug UART" 13414d31e664SDaniel Thompson default 0x00100a00 if DEBUG_NETX_UART 134297bd1a48SRussell King default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0 1343c3faa9b7SRussell King default 0x01c28000 if DEBUG_SUNXI_UART0 1344c3faa9b7SRussell King default 0x01c28400 if DEBUG_SUNXI_UART1 134597bd1a48SRussell King default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 134697bd1a48SRussell King default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 1347c4718543SChen-Yu Tsai default 0x01f02800 if DEBUG_SUNXI_R_UART 1348f2acf003SRussell King default 0x02530c00 if DEBUG_KEYSTONE_UART0 1349f2acf003SRussell King default 0x02531000 if DEBUG_KEYSTONE_UART1 1350c3faa9b7SRussell King default 0x03010fe0 if ARCH_RPC 1351d4da889aSChen-Yu Tsai default 0x07000000 if DEBUG_SUN9I_UART0 1352b125170aSKrzysztof Hałasa default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ 13535c972af4SRussell King DEBUG_VEXPRESS_UART0_CA9 13545c972af4SRussell King default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT 1355c3faa9b7SRussell King default 0x10124000 if DEBUG_RK3X_UART0 1356c3faa9b7SRussell King default 0x10126000 if DEBUG_RK3X_UART1 13575c972af4SRussell King default 0x101f1000 if ARCH_VERSATILE 13585c972af4SRussell King default 0x101fb000 if DEBUG_NOMADIK_UART 135965ec48c0SJoe.C default 0x11002000 if DEBUG_MT8127_UART0 1360d6682085SMatthias Brugger default 0x11006000 if DEBUG_MT6589_UART0 136165ec48c0SJoe.C default 0x11009000 if DEBUG_MT8135_UART3 13625c972af4SRussell King default 0x16000000 if ARCH_INTEGRATOR 136306580275SHauke Mehrtens default 0x18000300 if DEBUG_BCM_5301X 136401ea63d9SGuo Zeng default 0x18010000 if DEBUG_SIRFATLAS7_UART0 136501ea63d9SGuo Zeng default 0x18020000 if DEBUG_SIRFATLAS7_UART1 13665c972af4SRussell King default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 136727dafaa8SWang Long default 0x20001000 if DEBUG_HIP01_UART 1368c3faa9b7SRussell King default 0x20060000 if DEBUG_RK29_UART0 1369c3faa9b7SRussell King default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1370c3faa9b7SRussell King default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 13715c972af4SRussell King default 0x20201000 if DEBUG_BCM2835 1372753d1243SChristian Daudt default 0x3e000000 if DEBUG_BCM_KONA_UART 1373494e492dSUwe Kleine-König default 0x4000e400 if DEBUG_LL_UART_EFM32 1374c3faa9b7SRussell King default 0x40090000 if ARCH_LPC32XX 1375c3faa9b7SRussell King default 0x40100000 if DEBUG_PXA_UART1 1376c3faa9b7SRussell King default 0x42000000 if ARCH_GEMINI 13771899de28SHeiko Stuebner default 0x50000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 13781899de28SHeiko Stuebner DEBUG_S3C2410_UART0) 13791899de28SHeiko Stuebner default 0x50004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 13801899de28SHeiko Stuebner DEBUG_S3C2410_UART1) 13811899de28SHeiko Stuebner default 0x50008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 13821899de28SHeiko Stuebner DEBUG_S3C2410_UART2) 1383c3ca2130SKrzysztof Hałasa default 0x78000000 if DEBUG_CNS3XXX 1384c3faa9b7SRussell King default 0x7c0003f8 if FOOTBRIDGE 1385d5bd4e8dSOleksij Rempel default 0x80010000 if DEBUG_ASM9260_UART 13865c972af4SRussell King default 0x80070000 if DEBUG_IMX23_UART 13875c972af4SRussell King default 0x80074000 if DEBUG_IMX28_UART 1388c39e1ef7SAlexander Shiyan default 0x80230000 if DEBUG_PICOXCELL_UART 13895c972af4SRussell King default 0x808c0000 if ARCH_EP93XX 13905c972af4SRussell King default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 13917098cff2SIvan T. Ivanov default 0xa9a00000 if DEBUG_MSM_UART 139201ea63d9SGuo Zeng default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1 13935c972af4SRussell King default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX 13945c972af4SRussell King default 0xc0013000 if DEBUG_U300_UART 1395c3faa9b7SRussell King default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1396c3faa9b7SRussell King default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 13970dc0e475SRussell King default 0xd0000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX 1398d91125ddSMaxime Ripard default 0xd0012000 if DEBUG_MVEBU_UART0 1399d8a00916SCarlo Caione default 0xc81004c0 if DEBUG_MESON_UARTAO 1400c3faa9b7SRussell King default 0xd4017000 if DEBUG_MMP_UART2 1401c3faa9b7SRussell King default 0xd4018000 if DEBUG_MMP_UART3 14020dc0e475SRussell King default 0xe0000000 if ARCH_SPEAR13XX 1403c9a1df48SHaojian Zhuang default 0xe4007000 if DEBUG_HIP04_UART 14047a2071c5SGeert Uytterhoeven default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 14057a2071c5SGeert Uytterhoeven default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 14067a2071c5SGeert Uytterhoeven default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 14077a2071c5SGeert Uytterhoeven default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 14087a2071c5SGeert Uytterhoeven default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 14097a2071c5SGeert Uytterhoeven default 0xe8008000 if DEBUG_R7S72100_SCIF2 1410c3faa9b7SRussell King default 0xf0000be0 if ARCH_EBSA110 141181b43a6eSMarc Carino default 0xf040ab00 if DEBUG_BRCMSTB_UART 1412d91125ddSMaxime Ripard default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE 1413bd920490SMaxime Ripard default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE 1414ba364fc7SAndrew Lunn default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \ 1415c3faa9b7SRussell King ARCH_ORION5X 1416caad0b41SSebastian Hesselbarth default 0xf7fc9000 if DEBUG_BERLIN_UART 141712aae309SHaifeng Yan default 0xf8b00000 if DEBUG_HIX5HD2_UART 14187098cff2SIvan T. Ivanov default 0xf991e000 if DEBUG_QCOM_UARTDM 14198d258bebSHaojian Zhuang default 0xfcb00000 if DEBUG_HI3620_UART 1420c3faa9b7SRussell King default 0xfe800000 if ARCH_IOP32X 1421efd02ee9SHeiko Stuebner default 0xff690000 if DEBUG_RK32_UART2 14220b4cccbeSRussell King default 0xffc02000 if DEBUG_SOCFPGA_UART 1423c3faa9b7SRussell King default 0xffd82340 if ARCH_IOP13XX 14247a2071c5SGeert Uytterhoeven default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 14257a2071c5SGeert Uytterhoeven default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 14265c972af4SRussell King default 0xfff36000 if DEBUG_HIGHBANK_UART 1427c26b9993SDaniel Thompson default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1428c26b9993SDaniel Thompson default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1429c26b9993SDaniel Thompson default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1430b51312beSFlorian Fainelli default 0xfffe8600 if DEBUG_UART_BCM63XX 1431c3faa9b7SRussell King default 0xfffff700 if ARCH_IOP33X 1432d02fde7fSDaniel Thompson depends on ARCH_EP93XX || \ 1433d02fde7fSDaniel Thompson DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1434494e492dSUwe Kleine-König DEBUG_LL_UART_EFM32 || \ 1435d8a00916SCarlo Caione DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 14364d31e664SDaniel Thompson DEBUG_MSM_UART || DEBUG_NETX_UART || \ 14374d31e664SDaniel Thompson DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ 14387a2071c5SGeert Uytterhoeven DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ 14397a2071c5SGeert Uytterhoeven DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \ 14407a2071c5SGeert Uytterhoeven DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ 14417a2071c5SGeert Uytterhoeven DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \ 144201ea63d9SGuo Zeng DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ 1443e23814daSBaruch Siach DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 1444c3faa9b7SRussell King 1445c3faa9b7SRussell Kingconfig DEBUG_UART_VIRT 1446c3faa9b7SRussell King hex "Virtual base address of debug UART" 14474d31e664SDaniel Thompson default 0xe0000a00 if DEBUG_NETX_UART 1448c3faa9b7SRussell King default 0xe0010fe0 if ARCH_RPC 14497098cff2SIvan T. Ivanov default 0xe1000000 if DEBUG_MSM_UART 1450c3faa9b7SRussell King default 0xf0000be0 if ARCH_EBSA110 1451d5bd4e8dSOleksij Rempel default 0xf0010000 if DEBUG_ASM9260_UART 14525c972af4SRussell King default 0xf01fb000 if DEBUG_NOMADIK_UART 14535c972af4SRussell King default 0xf0201000 if DEBUG_BCM2835 145406580275SHauke Mehrtens default 0xf1000300 if DEBUG_BCM_5301X 145565ec48c0SJoe.C default 0xf1002000 if DEBUG_MT8127_UART0 1456d6682085SMatthias Brugger default 0xf1006000 if DEBUG_MT6589_UART0 145765ec48c0SJoe.C default 0xf1009000 if DEBUG_MT8135_UART3 14585c972af4SRussell King default 0xf11f1000 if ARCH_VERSATILE 14595c972af4SRussell King default 0xf1600000 if ARCH_INTEGRATOR 1460c3faa9b7SRussell King default 0xf1c28000 if DEBUG_SUNXI_UART0 1461c3faa9b7SRussell King default 0xf1c28400 if DEBUG_SUNXI_UART1 1462c4718543SChen-Yu Tsai default 0xf1f02800 if DEBUG_SUNXI_R_UART 1463cde7fc87SRobert Jarzmik default 0xf6200000 if DEBUG_PXA_UART1 1464c3faa9b7SRussell King default 0xf4090000 if ARCH_LPC32XX 1465c3faa9b7SRussell King default 0xf4200000 if ARCH_GEMINI 1466d4da889aSChen-Yu Tsai default 0xf7000000 if DEBUG_SUN9I_UART0 14671899de28SHeiko Stuebner default 0xf7000000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART0 || \ 14681899de28SHeiko Stuebner DEBUG_S3C2410_UART0) 14691899de28SHeiko Stuebner default 0xf7004000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART1 || \ 14701899de28SHeiko Stuebner DEBUG_S3C2410_UART1) 14711899de28SHeiko Stuebner default 0xf7008000 if DEBUG_S3C24XX_UART && (DEBUG_S3C_UART2 || \ 14721899de28SHeiko Stuebner DEBUG_S3C2410_UART2) 1473caad0b41SSebastian Hesselbarth default 0xf7fc9000 if DEBUG_BERLIN_UART 1474c9a1df48SHaojian Zhuang default 0xf8007000 if DEBUG_HIP04_UART 14755c972af4SRussell King default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 14765c972af4SRussell King default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 14777098cff2SIvan T. Ivanov default 0xfa71e000 if DEBUG_QCOM_UARTDM 1478b125170aSKrzysztof Hałasa default 0xfb002000 if DEBUG_CNS3XXX 14795c972af4SRussell King default 0xfb009000 if DEBUG_REALVIEW_STD_PORT 14805c972af4SRussell King default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT 148181b43a6eSMarc Carino default 0xfc40ab00 if DEBUG_BRCMSTB_UART 1482b51312beSFlorian Fainelli default 0xfcfe8600 if DEBUG_UART_BCM63XX 14830dc0e475SRussell King default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX 14840dc0e475SRussell King default 0xfd000000 if ARCH_SPEAR13XX 1485c3faa9b7SRussell King default 0xfd012000 if ARCH_MV78XX0 1486c3faa9b7SRussell King default 0xfde12000 if ARCH_DOVE 1487c3faa9b7SRussell King default 0xfe012000 if ARCH_ORION5X 1488d8a00916SCarlo Caione default 0xf31004c0 if DEBUG_MESON_UARTAO 1489c3faa9b7SRussell King default 0xfe017000 if DEBUG_MMP_UART2 1490c3faa9b7SRussell King default 0xfe018000 if DEBUG_MMP_UART3 14915c972af4SRussell King default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART 14920b4cccbeSRussell King default 0xfe230000 if DEBUG_PICOXCELL_UART 1493753d1243SChristian Daudt default 0xfe300000 if DEBUG_BCM_KONA_UART 1494c3faa9b7SRussell King default 0xfe800000 if ARCH_IOP32X 149512aae309SHaifeng Yan default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART 1496c3faa9b7SRussell King default 0xfeb24000 if DEBUG_RK3X_UART0 1497c3faa9b7SRussell King default 0xfeb26000 if DEBUG_RK3X_UART1 1498f2acf003SRussell King default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 1499f2acf003SRussell King default 0xfeb31000 if DEBUG_KEYSTONE_UART1 15000b4cccbeSRussell King default 0xfec02000 if DEBUG_SOCFPGA_UART 1501d91125ddSMaxime Ripard default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE 1502bd920490SMaxime Ripard default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE 150301ea63d9SGuo Zeng default 0xfec10000 if DEBUG_SIRFATLAS7_UART0 150497bd1a48SRussell King default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0 150501ea63d9SGuo Zeng default 0xfec20000 if DEBUG_SIRFATLAS7_UART1 150601ea63d9SGuo Zeng default 0xfec60000 if DEBUG_SIRFPRIMA2_UART1 1507efd02ee9SHeiko Stuebner default 0xfec90000 if DEBUG_RK32_UART2 150897bd1a48SRussell King default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 150997bd1a48SRussell King default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 1510c39e1ef7SAlexander Shiyan default 0xfed60000 if DEBUG_RK29_UART0 1511c39e1ef7SAlexander Shiyan default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 1512c39e1ef7SAlexander Shiyan default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 15135c972af4SRussell King default 0xfedc0000 if ARCH_EP93XX 1514c3faa9b7SRussell King default 0xfee003f8 if FOOTBRIDGE 15155c972af4SRussell King default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART 1516c3faa9b7SRussell King default 0xfee82340 if ARCH_IOP13XX 1517c3faa9b7SRussell King default 0xfef00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN 1518c3faa9b7SRussell King default 0xfef00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN 1519c39e1ef7SAlexander Shiyan default 0xfef36000 if DEBUG_HIGHBANK_UART 1520c26b9993SDaniel Thompson default 0xfefb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1 1521c26b9993SDaniel Thompson default 0xfefb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2 1522c26b9993SDaniel Thompson default 0xfefb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3 1523c3faa9b7SRussell King default 0xfefff700 if ARCH_IOP33X 15245c972af4SRussell King default 0xff003000 if DEBUG_U300_UART 152527dafaa8SWang Long default 0xffd01000 if DEBUG_HIP01_UART 15265c972af4SRussell King default DEBUG_UART_PHYS if !MMU 1527f8f1279cSRussell King depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ 1528d8a00916SCarlo Caione DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ 15294d31e664SDaniel Thompson DEBUG_MSM_UART || DEBUG_NETX_UART || \ 15304d31e664SDaniel Thompson DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ 1531e23814daSBaruch Siach DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ 1532e23814daSBaruch Siach DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 1533c3faa9b7SRussell King 15344a003647SRussell Kingconfig DEBUG_UART_8250_SHIFT 15354a003647SRussell King int "Register offset shift for the 8250 debug UART" 1536f8f1279cSRussell King depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 1537c26b9993SDaniel Thompson default 0 if FOOTBRIDGE || ARCH_IOP32X || DEBUG_BCM_5301X || \ 1538c26b9993SDaniel Thompson DEBUG_OMAP7XXUART1 || DEBUG_OMAP7XXUART2 || DEBUG_OMAP7XXUART3 15394a003647SRussell King default 2 15407610b607SRussell King 15410b4cccbeSRussell Kingconfig DEBUG_UART_8250_WORD 15420b4cccbeSRussell King bool "Use 32-bit accesses for 8250 UART" 1543f8f1279cSRussell King depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 15440b4cccbeSRussell King depends on DEBUG_UART_8250_SHIFT >= 2 1545f2acf003SRussell King default y if DEBUG_PICOXCELL_UART || DEBUG_SOCFPGA_UART || \ 154697bd1a48SRussell King ARCH_KEYSTONE || \ 154797bd1a48SRussell King DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \ 15489d6eccb9SArnd Bergmann DEBUG_DAVINCI_DA8XX_UART2 || \ 154981b43a6eSMarc Carino DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \ 155081b43a6eSMarc Carino DEBUG_BRCMSTB_UART 15510b4cccbeSRussell King 15527610b607SRussell Kingconfig DEBUG_UART_8250_FLOW_CONTROL 15537610b607SRussell King bool "Enable flow control for 8250 UART" 1554f8f1279cSRussell King depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 15557610b607SRussell King default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_GEMINI || ARCH_RPC 15567610b607SRussell King 15573b4af9bcSShawn Guoconfig DEBUG_UNCOMPRESS 15583b4af9bcSShawn Guo bool 155990266754SHeiko Stuebner depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG 1560b6992fa9SRussell King default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ 1561ae3c99a2SStephen Warren (!DEBUG_TEGRA_UART || !ZBOOT_ROM) 1562b6992fa9SRussell King help 1563b6992fa9SRussell King This option influences the normal decompressor output for 1564b6992fa9SRussell King multiplatform kernels. Normally, multiplatform kernels disable 1565b6992fa9SRussell King decompressor output because it is not possible to know where to 1566b6992fa9SRussell King send the decompressor output. 1567b6992fa9SRussell King 1568b6992fa9SRussell King When this option is set, the selected DEBUG_LL output method 1569b6992fa9SRussell King will be re-used for normal decompressor output on multiplatform 1570b6992fa9SRussell King kernels. 1571b6992fa9SRussell King 15723b4af9bcSShawn Guo 1573615967b0SShawn Guoconfig UNCOMPRESS_INCLUDE 1574615967b0SShawn Guo string 1575ffd80eccSSachin Kamat default "debug/uncompress.h" if ARCH_MULTIPLATFORM || ARCH_MSM || \ 15762bf73dd6SLinus Torvalds PLAT_SAMSUNG || ARCH_EFM32 1577615967b0SShawn Guo default "mach/uncompress.h" 1578615967b0SShawn Guo 15791da177e4SLinus Torvaldsconfig EARLY_PRINTK 15801da177e4SLinus Torvalds bool "Early printk" 15811da177e4SLinus Torvalds depends on DEBUG_LL 15821da177e4SLinus Torvalds help 15831da177e4SLinus Torvalds Say Y here if you want to have an early console using the 15841da177e4SLinus Torvalds kernel low-level debugging functions. Add earlyprintk to your 15851da177e4SLinus Torvalds kernel parameters to enable this console. 15861da177e4SLinus Torvalds 15871da177e4SLinus Torvaldsconfig ARM_KPROBES_TEST 15881da177e4SLinus Torvalds tristate "Kprobes test module" 15891da177e4SLinus Torvalds depends on KPROBES && MODULES 15901da177e4SLinus Torvalds help 15911da177e4SLinus Torvalds Perform tests of kprobes API and instruction set simulation. 15921da177e4SLinus Torvalds 1593575320d6SWill Deaconconfig PID_IN_CONTEXTIDR 1594575320d6SWill Deacon bool "Write the current PID to the CONTEXTIDR register" 1595575320d6SWill Deacon depends on CPU_COPY_V6 1596575320d6SWill Deacon help 1597575320d6SWill Deacon Enabling this option causes the kernel to write the current PID to 1598575320d6SWill Deacon the PROCID field of the CONTEXTIDR register, at the expense of some 1599575320d6SWill Deacon additional instructions during context switch. Say Y here only if you 1600575320d6SWill Deacon are planning to use hardware trace tools with this kernel. 1601575320d6SWill Deacon 1602dca9aa92SLaura Abbottconfig DEBUG_SET_MODULE_RONX 1603dca9aa92SLaura Abbott bool "Set loadable kernel module data as NX and text as RO" 1604dca9aa92SLaura Abbott depends on MODULES 1605dca9aa92SLaura Abbott ---help--- 1606dca9aa92SLaura Abbott This option helps catch unintended modifications to loadable 1607dca9aa92SLaura Abbott kernel module's text and read-only data. It also prevents execution 1608dca9aa92SLaura Abbott of module data. Such protection may interfere with run-time code 1609dca9aa92SLaura Abbott patching and dynamic kernel tracing - and they might also protect 1610dca9aa92SLaura Abbott against certain classes of kernel exploits. 1611dca9aa92SLaura Abbott If in doubt, say "N". 1612dca9aa92SLaura Abbott 1613a06ae860SPratik Patelmenuconfig CORESIGHT 1614a06ae860SPratik Patel bool "CoreSight Tracing Support" 1615a06ae860SPratik Patel select ARM_AMBA 1616a06ae860SPratik Patel help 1617a06ae860SPratik Patel This framework provides a kernel interface for the CoreSight debug 1618a06ae860SPratik Patel and trace drivers to register themselves with. It's intended to build 1619a06ae860SPratik Patel a topological view of the CoreSight components based on a DT 1620a06ae860SPratik Patel specification and configure the right serie of components when a 1621a06ae860SPratik Patel trace source gets enabled. 1622bc4bf7feSPratik Patel 1623bc4bf7feSPratik Patelif CORESIGHT 1624bc4bf7feSPratik Patelconfig CORESIGHT_LINKS_AND_SINKS 1625bc4bf7feSPratik Patel bool "CoreSight Link and Sink drivers" 1626bc4bf7feSPratik Patel help 1627bc4bf7feSPratik Patel This enables support for CoreSight link and sink drivers that are 1628bc4bf7feSPratik Patel responsible for transporting and collecting the trace data 1629bc4bf7feSPratik Patel respectively. Link and sinks are dynamically aggregated with a trace 1630bc4bf7feSPratik Patel entity at run time to form a complete trace path. 1631bc4bf7feSPratik Patel 1632bc4bf7feSPratik Patelconfig CORESIGHT_LINK_AND_SINK_TMC 1633bc4bf7feSPratik Patel bool "Coresight generic TMC driver" 1634bc4bf7feSPratik Patel depends on CORESIGHT_LINKS_AND_SINKS 1635bc4bf7feSPratik Patel help 1636bc4bf7feSPratik Patel This enables support for the Trace Memory Controller driver. Depending 1637bc4bf7feSPratik Patel on its configuration the device can act as a link (embedded trace router 1638bc4bf7feSPratik Patel - ETR) or sink (embedded trace FIFO). The driver complies with the 1639bc4bf7feSPratik Patel generic implementation of the component without special enhancement or 1640bc4bf7feSPratik Patel added features. 1641dc161b9fSPratik Patel 1642dc161b9fSPratik Patelconfig CORESIGHT_SINK_TPIU 1643dc161b9fSPratik Patel bool "Coresight generic TPIU driver" 1644dc161b9fSPratik Patel depends on CORESIGHT_LINKS_AND_SINKS 1645dc161b9fSPratik Patel help 1646dc161b9fSPratik Patel This enables support for the Trace Port Interface Unit driver, responsible 1647dc161b9fSPratik Patel for bridging the gap between the on-chip coresight components and a trace 1648dc161b9fSPratik Patel port collection engine, typically connected to an external host for use 1649dc161b9fSPratik Patel case capturing more traces than the on-board coresight memory can handle. 1650fdfc0d8aSPratik Patel 1651fdfc0d8aSPratik Patelconfig CORESIGHT_SINK_ETBV10 1652fdfc0d8aSPratik Patel bool "Coresight ETBv1.0 driver" 1653fdfc0d8aSPratik Patel depends on CORESIGHT_LINKS_AND_SINKS 1654fdfc0d8aSPratik Patel help 1655fdfc0d8aSPratik Patel This enables support for the Embedded Trace Buffer version 1.0 driver 1656fdfc0d8aSPratik Patel that complies with the generic implementation of the component without 1657fdfc0d8aSPratik Patel special enhancement or added features. 1658a939fc5aSPratik Patel 1659a939fc5aSPratik Patelconfig CORESIGHT_SOURCE_ETM3X 1660a939fc5aSPratik Patel bool "CoreSight Embedded Trace Macrocell 3.x driver" 1661a939fc5aSPratik Patel select CORESIGHT_LINKS_AND_SINKS 1662a939fc5aSPratik Patel help 1663a939fc5aSPratik Patel This driver provides support for processor ETM3.x and PTM1.x modules, 1664a939fc5aSPratik Patel which allows tracing the instructions that a processor is executing 1665a939fc5aSPratik Patel This is primarily useful for instruction level tracing. Depending 1666a939fc5aSPratik Patel the ETM version data tracing may also be available. 1667bc4bf7feSPratik Patelendif 16681da177e4SLinus Torvaldsendmenu 1669