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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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SPDX-License-Identifier: GPL-2.0
config ARM_PTDUMP_CORE def_bool n
config ARM_PTDUMP_DEBUGFS bool "Export kernel pagetable layout to userspace via debugfs" depends on DEBUG_KERNEL depends on MMU select ARM_PTDUMP_CORE select DEBUG_FS help Say Y here if you want to show the kernel pagetable layout in a debugfs file. This information is only useful for kernel developers who are working in architecture specific areas of the kernel. It is probably not a good idea to enable this feature in a production kernel. If in doubt, say "N"
config ARM_DEBUG_WX bool "Warn on W+X mappings at boot" depends on MMU select ARM_PTDUMP_CORE help Generate a warning if any W+X mappings are found at boot.
This is useful for discovering cases where the kernel is leaving W+X mappings after applying NX, as such mappings are a security risk.
Look for a message in dmesg output like this:
arm/mm: Checked W+X mappings: passed, no W+X pages found.
or like this, if the check failed:
arm/mm: Checked W+X mappings: FAILED, <N> W+X pages found.
Note that even if the check fails, your kernel is possibly still fine, as W+X mappings are not a security hole in themselves, what they do is that they make the exploitation of other unfixed kernel bugs easier.
There is no runtime or memory usage effect of this option once the kernel has booted up - it's a one time check.
If in doubt, say "Y".
choice prompt "Choose kernel unwinder" default UNWINDER_ARM if AEABI default UNWINDER_FRAME_POINTER if !AEABI help This determines which method will be used for unwinding kernel stack traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack, livepatch, lockdep, and more.
config UNWINDER_FRAME_POINTER bool "Frame pointer unwinder" depends on !THUMB2_KERNEL select ARCH_WANT_FRAME_POINTERS select FRAME_POINTER help This option enables the frame pointer unwinder for unwinding kernel stack traces.
config UNWINDER_ARM bool "ARM EABI stack unwinder" depends on AEABI select ARM_UNWIND help This option enables stack unwinding support in the kernel using the information automatically generated by the compiler. The resulting kernel image is slightly bigger but the performance is not affected. Currently, this feature only works with EABI compilers.
endchoice
config ARM_UNWIND bool
config BACKTRACE_VERBOSE bool "Verbose backtrace" depends on EXPERT help When the kernel produces a warning or oops, the kernel prints a trace of the call chain. This option controls whether we include the numeric addresses or only include the symbolic information.
In most cases, say N here, unless you are intending to debug the kernel and have access to the kernel binary image.
config DEBUG_USER bool "Verbose user fault messages" help When a user program crashes due to an exception, the kernel can print a brief message explaining what the problem was. This is sometimes helpful for debugging but serves no purpose on a production system. Most people should say N here.
In addition, you need to pass user_debug=N on the kernel command line to enable this feature. N consists of the sum of:
1 - undefined instruction events 2 - system calls 4 - invalid data aborts 8 - SIGSEGV faults 16 - SIGBUS faults
# These options are only for real kernel hackers who want to get their hands dirty.config DEBUG_LL bool "Kernel low-level debugging functions (read help!)" depends on DEBUG_KERNEL help Say Y here to include definitions of printascii, printch, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.
Note that selecting this option will limit the kernel to a single UART definition, as specified below. Attempting to boot the kernel image on a different platform *will not work*, so this option should not be enabled for kernels that are intended to be portable.
choice prompt "Kernel low-level debugging port" depends on DEBUG_LL
config DEBUG_ALPINE_UART0 bool "Kernel low-level debugging messages via Alpine UART0" depends on ARCH_ALPINE select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Alpine based platforms.
config DEBUG_ASM9260_UART bool "Kernel low-level debugging via asm9260 UART" depends on MACH_ASM9260 help Say Y here if you want the debug print routines to direct their output to an UART or USART port on asm9260 based machines.
DEBUG_UART_PHYS | DEBUG_UART_VIRT
0x80000000 | 0xf0000000 | UART0 0x80004000 | 0xf0004000 | UART1 0x80008000 | 0xf0008000 | UART2 0x8000c000 | 0xf000c000 | UART3 0x80010000 | 0xf0010000 | UART4 0x80014000 | 0xf0014000 | UART5 0x80018000 | 0xf0018000 | UART6 0x8001c000 | 0xf001c000 | UART7 0x80020000 | 0xf0020000 | UART8 0x80024000 | 0xf0024000 | UART9
config DEBUG_AT91_RM9200_DBGU bool "Kernel low-level debugging on AT91RM9200, AT91SAM9, SAM9X60 DBGU" select DEBUG_AT91_UART depends on SOC_AT91RM9200 || SOC_AT91SAM9 || SOC_SAM9X60 help Say Y here if you want kernel low-level debugging support on the DBGU port of: at91rm9200, at91sam9260, at91sam9g20, at91sam9261, at91sam9g10, at91sam9n12, at91sam9rl64, at91sam9x5, sam9x60
config DEBUG_AT91_SAM9263_DBGU bool "Kernel low-level debugging on AT91SAM{9263,9G45,A5D3} DBGU" select DEBUG_AT91_UART depends on SOC_AT91SAM9 || SOC_SAMA5D3 help Say Y here if you want kernel low-level debugging support on the DBGU port of: at91sam9263, at91sam9g45, at91sam9m10, sama5d3
config DEBUG_AT91_SAMA5D2_UART1 bool "Kernel low-level debugging on SAMA5D2 UART1" select DEBUG_AT91_UART depends on SOC_SAMA5D2 help Say Y here if you want kernel low-level debugging support on the UART1 port of sama5d2.
config DEBUG_AT91_SAMA5D4_USART3 bool "Kernel low-level debugging on SAMA5D4 USART3" select DEBUG_AT91_UART depends on SOC_SAMA5D4 help Say Y here if you want kernel low-level debugging support on the USART3 port of sama5d4.
config DEBUG_AT91_SAMV7_USART1 bool "Kernel low-level debugging via SAMV7 USART1" select DEBUG_AT91_UART depends on SOC_SAMV7 help Say Y here if you want the debug print routines to direct their output to the USART1 port on SAMV7 based machines.
config DEBUG_AT91_SAMA7G5_FLEXCOM3 bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3" select DEBUG_AT91_UART depends on SOC_SAMA7G5 help Say Y here if you want kernel low-level debugging support on the FLEXCOM3 port of SAMA7G5.
config DEBUG_AT91_LAN966_FLEXCOM bool "Kernel low-level debugging on LAN966 FLEXCOM USART" select DEBUG_AT91_UART depends on SOC_LAN966 help Say Y here if you want kernel low-level debugging support on the FLEXCOM port of LAN966.
DEBUG_UART_PHYS | DEBUG_UART_VIRT
0xe0040200 | 0xfd040200 | FLEXCOM0 0xe0044200 | 0xfd044200 | FLEXCOM1 0xe0060200 | 0xfd060200 | FLEXCOM2 0xe0064200 | 0xfd064200 | FLEXCOM3 0xe0070200 | 0xfd070200 | FLEXCOM4
By default, enabling FLEXCOM3 port. Based on requirement, use DEBUG_UART_PHYS and DEBUG_UART_VIRT configurations from above table.
config DEBUG_BCM2835 bool "Kernel low-level debugging on BCM2835 PL011 UART" depends on ARCH_BCM2835 && ARCH_MULTI_V6 select DEBUG_UART_PL01X
config DEBUG_BCM2836 bool "Kernel low-level debugging on BCM2836 PL011 UART" depends on ARCH_BCM2835 && ARCH_MULTI_V7 select DEBUG_UART_PL01X
config DEBUG_BCM_5301X bool "Kernel low-level debugging on BCM5301X/NSP UART1" depends on ARCH_BCM_5301X || ARCH_BCM_NSP select DEBUG_UART_8250
config DEBUG_BCMBCA bool "Kernel low-level debugging on BCMBCA UART0" depends on ARCH_BCMBCA
config DEBUG_BCM_HR2 bool "Kernel low-level debugging on Hurricane 2 UART2" depends on ARCH_BCM_HR2 select DEBUG_UART_8250
config DEBUG_BCM_IPROC_UART3 bool "Kernel low-level debugging on BCM IPROC UART3" depends on ARCH_BCM_CYGNUS select DEBUG_UART_8250 help Say Y here if you want the debug print routines to direct their output to the third serial port on these devices.
config DEBUG_BCM_KONA_UART bool "Kernel low-level debugging messages via BCM KONA UART" depends on ARCH_BCM_MOBILE select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Broadcom SoC platforms. This low level debug works for Broadcom mobile SoCs in the Kona family of chips (e.g. bcm28155, bcm11351, etc...)
config DEBUG_BCM63XX_UART bool "Kernel low-level debugging on BCM63XX UART" depends on ARCH_BCMBCA
config DEBUG_BERLIN_UART bool "Marvell Berlin SoC Debug UART" depends on ARCH_BERLIN select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Marvell Berlin SoC based platforms.
config DEBUG_BRCMSTB_UART bool "Use BRCMSTB UART for low-level debug" depends on ARCH_BRCMSTB help Say Y here if you want the debug print routines to direct their output to the first serial port on these devices. The UART physical and virtual address is automatically provided based on the chip identification register value.
If you have a Broadcom STB chip and would like early print messages to appear over the UART, select this option.
config DEBUG_CLPS711X_UART1 bool "Kernel low-level debugging messages via UART1" depends on ARCH_CLPS711X help Say Y here if you want the debug print routines to direct their output to the first serial port on these devices.
config DEBUG_CLPS711X_UART2 bool "Kernel low-level debugging messages via UART2" depends on ARCH_CLPS711X help Say Y here if you want the debug print routines to direct their output to the second serial port on these devices.
config DEBUG_DAVINCI_DA8XX_UART1 bool "Kernel low-level debugging on DaVinci DA8XX using UART1" depends on ARCH_DAVINCI_DA8XX select DEBUG_UART_8250 help Say Y here if you want the debug print routines to direct their output to UART1 serial port on DaVinci DA8XX devices.
config DEBUG_DAVINCI_DA8XX_UART2 bool "Kernel low-level debugging on DaVinci DA8XX using UART2" depends on ARCH_DAVINCI_DA8XX select DEBUG_UART_8250 help Say Y here if you want the debug print routines to direct their output to UART2 serial port on DaVinci DA8XX devices.
config DEBUG_DC21285_PORT bool "Kernel low-level debugging messages via footbridge serial port" depends on FOOTBRIDGE help Say Y here if you want the debug print routines to direct their output to the serial port in the DC21285 (Footbridge).
config DEBUG_DIGICOLOR_UA0 bool "Kernel low-level debugging messages via Digicolor UA0" depends on ARCH_DIGICOLOR help Say Y here if you want the debug print routines to direct their output to the UA0 serial port in the CX92755.
config DEBUG_EP93XX bool "Kernel low-level debugging messages via ep93xx UART" depends on ARCH_EP93XX select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on Cirrus Logic EP93xx based platforms.
config DEBUG_FOOTBRIDGE_COM1 bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1" depends on FOOTBRIDGE select DEBUG_UART_8250 help Say Y here if you want the debug print routines to direct their output to the 8250 at PCI COM1.
config DEBUG_GEMINI bool "Kernel low-level debugging messages via Cortina Systems Gemini UART" depends on ARCH_GEMINI select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Cortina Gemini based platforms.
config DEBUG_HI3620_UART bool "Hisilicon HI3620 Debug UART" depends on ARCH_HI3xxx select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on HI3620 UART.
config DEBUG_HIGHBANK_UART bool "Kernel low-level debugging messages via Highbank UART" depends on ARCH_HIGHBANK select DEBUG_UART_PL01X help Say Y here if you want the debug print routines to direct their output to the UART on Highbank based devices.
config DEBUG_HIP01_UART bool "Hisilicon Hip01 Debug UART" depends on ARCH_HIP01 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on HIP01 UART.
config DEBUG_HIP04_UART bool "Hisilicon HiP04 Debug UART" depends on ARCH_HIP04 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on HIP04 UART.
config DEBUG_HIX5HD2_UART bool "Hisilicon Hix5hd2 Debug UART" depends on ARCH_HIX5HD2 select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on Hix5hd2 UART.
config DEBUG_IMX1_UART bool "i.MX1 Debug UART" depends on SOC_IMX1 help Say Y here if you want kernel low-level debugging support on i.MX1.
config DEBUG_IMX23_UART bool "i.MX23 Debug UART" depends on SOC_IMX23 select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on i.MX23.
config DEBUG_IMX25_UART bool "i.MX25 Debug UART" depends on SOC_IMX25 help Say Y here if you want kernel low-level debugging support on i.MX25.
config DEBUG_IMX27_UART bool "i.MX27 Debug UART" depends on SOC_IMX27 help Say Y here if you want kernel low-level debugging support on i.MX27.
config DEBUG_IMX28_UART bool "i.MX28 Debug UART" depends on SOC_IMX28 select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on i.MX28.
config DEBUG_IMX31_UART bool "i.MX31 Debug UART" depends on SOC_IMX31 help Say Y here if you want kernel low-level debugging support on i.MX31.
config DEBUG_IMX35_UART bool "i.MX35 Debug UART" depends on SOC_IMX35 help Say Y here if you want kernel low-level debugging support on i.MX35.
config DEBUG_IMX50_UART bool "i.MX50 Debug UART" depends on SOC_IMX50 help Say Y here if you want kernel low-level debugging support on i.MX50.
config DEBUG_IMX51_UART bool "i.MX51 Debug UART" depends on SOC_IMX51 help Say Y here if you want kernel low-level debugging support on i.MX51.
config DEBUG_IMX53_UART bool "i.MX53 Debug UART" depends on SOC_IMX53 help Say Y here if you want kernel low-level debugging support on i.MX53.
config DEBUG_IMX6Q_UART bool "i.MX6Q/DL Debug UART" depends on SOC_IMX6Q help Say Y here if you want kernel low-level debugging support on i.MX6Q/DL.
config DEBUG_IMX6SL_UART bool "i.MX6SL Debug UART" depends on SOC_IMX6SL help Say Y here if you want kernel low-level debugging support on i.MX6SL.
config DEBUG_IMX6SX_UART bool "i.MX6SX Debug UART" depends on SOC_IMX6SX help Say Y here if you want kernel low-level debugging support on i.MX6SX.
config DEBUG_IMX6UL_UART bool "i.MX6UL Debug UART" depends on SOC_IMX6UL help Say Y here if you want kernel low-level debugging support on i.MX6UL.
config DEBUG_IMX7D_UART bool "i.MX7D Debug UART" depends on SOC_IMX7D help Say Y here if you want kernel low-level debugging support on i.MX7D.
config DEBUG_INTEGRATOR bool "Kernel low-level debugging messages via ARM Integrator UART" depends on ARCH_INTEGRATOR select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on ARM Integrator platforms.
config DEBUG_KEYSTONE_UART0 bool "Kernel low-level debugging on KEYSTONE2 using UART0" depends on ARCH_KEYSTONE select DEBUG_UART_8250 help Say Y here if you want the debug print routines to direct their output to UART0 serial port on KEYSTONE2 devices.
config DEBUG_KEYSTONE_UART1 bool "Kernel low-level debugging on KEYSTONE2 using UART1" depends on ARCH_KEYSTONE select DEBUG_UART_8250 help Say Y here if you want the debug print routines to direct their output to UART1 serial port on KEYSTONE2 devices.
config DEBUG_LPC18XX_UART0 bool "Kernel low-level debugging via LPC18xx/43xx UART0" depends on ARCH_LPC18XX select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on NXP LPC18xx/43xx UART0.
config DEBUG_LPC32XX bool "Kernel low-level debugging messages via NXP LPC32xx UART" depends on ARCH_LPC32XX select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on NXP LPC32xx based platforms.
config DEBUG_MESON_UARTAO bool "Kernel low-level debugging via Meson6 UARTAO" depends on ARCH_MESON help Say Y here if you want kernel low-lever debugging support on Amlogic Meson6 based platforms on the UARTAO.
config DEBUG_MMP_UART2 bool "Kernel low-level debugging message via MMP UART2" depends on ARCH_MMP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on MMP UART2.
config DEBUG_MMP_UART3 bool "Kernel low-level debugging message via MMP UART3" depends on ARCH_MMP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on MMP UART3.
config DEBUG_MVEBU_UART0 bool "Kernel low-level debugging messages via MVEBU UART0 (old bootloaders)" depends on ARCH_MVEBU depends on ARCH_MVEBU && CPU_V7 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on MVEBU based platforms on UART0.
This option should be used with the old bootloaders that left the internal registers mapped at 0xd0000000. As of today, this is the case on platforms such as the Globalscale Mirabox or the Plathome OpenBlocks AX3, when using the original bootloader.
This option will not work on older Marvell platforms (Kirkwood, Dove, MV78xx0, Orion5x), which should pick the "new bootloader" variant.
If the wrong DEBUG_MVEBU_UART* option is selected, when u-boot hands over to the kernel, the system silently crashes, with no serial output at all.
config DEBUG_MVEBU_UART0_ALTERNATE bool "Kernel low-level debugging messages via MVEBU UART0 (new bootloaders)" depends on ARCH_MVEBU || ARCH_DOVE || ARCH_MV78XX0 || ARCH_ORION5X select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on MVEBU based platforms on UART0. (Armada XP, Armada 3xx, Kirkwood, Dove, MV78xx0, Orion5x).
This option should be used with the new bootloaders that remap the internal registers at 0xf1000000.
If the wrong DEBUG_MVEBU_UART* option is selected, when u-boot hands over to the kernel, the system silently crashes, with no serial output at all.
config DEBUG_MVEBU_UART1_ALTERNATE bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)" depends on ARCH_MVEBU select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on MVEBU based platforms on UART1. (Armada XP, Armada 3xx, Kirkwood, Dove, MV78xx0, Orion5x).
This option should be used with the new bootloaders that remap the internal registers at 0xf1000000. All of the older (pre Armada XP/370) platforms also use this address, regardless of the boot loader version.
If the wrong DEBUG_MVEBU_UART* option is selected, when u-boot hands over to the kernel, the system silently crashes, with no serial output at all.
config DEBUG_MSTARV7_PMUART bool "Kernel low-level debugging messages via MSTARV7 PM UART" depends on ARCH_MSTARV7 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support for MSTAR ARMv7-based platforms on PM UART.
config DEBUG_MT6589_UART0 bool "Mediatek mt6589 UART0" depends on ARCH_MEDIATEK select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support for Mediatek mt6589 based platforms on UART0.
config DEBUG_MT8127_UART0 bool "Mediatek mt8127/mt6592 UART0" depends on ARCH_MEDIATEK select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support for Mediatek mt8127 based platforms on UART0.
config DEBUG_MT8135_UART3 bool "Mediatek mt8135 UART3" depends on ARCH_MEDIATEK select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support for Mediatek mt8135 based platforms on UART3.
config DEBUG_NOMADIK_UART bool "Kernel low-level debugging messages via NOMADIK UART" depends on ARCH_NOMADIK select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on NOMADIK based platforms.
config DEBUG_NSPIRE_CLASSIC_UART bool "Kernel low-level debugging via TI-NSPIRE 8250 UART" depends on ARCH_NSPIRE select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on TI-NSPIRE classic models.
config DEBUG_NSPIRE_CX_UART bool "Kernel low-level debugging via TI-NSPIRE PL011 UART" depends on ARCH_NSPIRE select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on TI-NSPIRE CX models.
config DEBUG_OMAP1UART1 bool "Kernel low-level debugging via OMAP1 UART1" depends on ARCH_OMAP1 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on OMAP1 based platforms (except OMAP730) on the UART1.
config DEBUG_OMAP1UART2 bool "Kernel low-level debugging via OMAP1 UART2" depends on ARCH_OMAP1 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on OMAP1 based platforms (except OMAP730) on the UART2.
config DEBUG_OMAP1UART3 bool "Kernel low-level debugging via OMAP1 UART3" depends on ARCH_OMAP1 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on OMAP1 based platforms (except OMAP730) on the UART3.
config DEBUG_OMAP2UART1 bool "OMAP2/3/4 UART1 (omap2/3 sdp boards and some omap3 boards)" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250 help This covers at least h4, 2430sdp, 3430sdp, 3630sdp, omap3 torpedo and 3530 lv som.
config DEBUG_OMAP2UART2 bool "Kernel low-level debugging messages via OMAP2/3/4 UART2" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_OMAP2UART3 bool "Kernel low-level debugging messages via OMAP2 UART3 (n8x0)" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_OMAP3UART3 bool "Kernel low-level debugging messages via OMAP3 UART3 (most omap3 boards)" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250 help This covers at least cm_t3x, beagle, crane, devkit8000, igep00x0, ldp, n900, n9(50), pandora, overo, touchbook, and 3517evm.
config DEBUG_OMAP4UART3 bool "Kernel low-level debugging messages via OMAP4/5 UART3 (omap4 blaze, panda, omap5 sevm)" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_OMAP3UART4 bool "Kernel low-level debugging messages via OMAP36XX UART4" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_OMAP4UART4 bool "Kernel low-level debugging messages via OMAP4/5 UART4" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_TI81XXUART1 bool "Kernel low-level debugging messages via TI81XX UART1 (ti8148evm)" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_TI81XXUART2 bool "Kernel low-level debugging messages via TI81XX UART2" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_TI81XXUART3 bool "Kernel low-level debugging messages via TI81XX UART3 (ti8168evm)" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_AM33XXUART1 bool "Kernel low-level debugging messages via AM33XX UART1" depends on ARCH_OMAP2PLUS select DEBUG_UART_8250
config DEBUG_ZOOM_UART bool "Kernel low-level debugging messages via Zoom2/3 UART" depends on ARCH_OMAP2PLUS select DEBUG_OMAP2PLUS_UART
config DEBUG_PXA_UART1 depends on ARCH_PXA bool "Use PXA UART1 for low-level debug" select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on PXA UART1.
config DEBUG_QCOM_UARTDM bool "Kernel low-level debugging messages via QCOM UARTDM" depends on ARCH_QCOM help Say Y here if you want the debug print routines to direct their output to the serial port on Qualcomm devices.
ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT APQ8064 0x16640000 0xf0040000 APQ8084 0xf995e000 0xfa75e000 IPQ4019 0x078af000 0xf78af000 MSM8X60 0x19c40000 0xf0040000 MSM8960 0x16440000 0xf0040000 MSM8974 0xf991e000 0xfa71e000
Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration options based on your needs.
config DEBUG_REALVIEW_STD_PORT bool "RealView Default UART" depends on ARCH_REALVIEW select DEBUG_UART_PL01X help Say Y here if you want the debug print routines to direct their output to the serial port on RealView EB, PB11MP, PBA8 and PBX platforms.
config DEBUG_REALVIEW_PB1176_PORT bool "RealView PB1176 UART" depends on MACH_REALVIEW_PB1176 select DEBUG_UART_PL01X help Say Y here if you want the debug print routines to direct their output to the standard serial port on the RealView PB1176 platform.
config DEBUG_RV1108_UART0 bool "Kernel low-level debugging messages via Rockchip RV1108 UART0" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip RV1108 based platforms.
config DEBUG_RV1108_UART1 bool "Kernel low-level debugging messages via Rockchip RV1108 UART1" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip RV1108 based platforms.
config DEBUG_RV1108_UART2 bool "Kernel low-level debugging messages via Rockchip RV1108 UART2" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip RV1108 based platforms.
config DEBUG_RK29_UART0 bool "Kernel low-level debugging messages via Rockchip RK29 UART0" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK29_UART1 bool "Kernel low-level debugging messages via Rockchip RK29 UART1" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK29_UART2 bool "Kernel low-level debugging messages via Rockchip RK29 UART2" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK3X_UART0 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART0" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK3X_UART1 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART1" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK3X_UART2 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART2" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK3X_UART3 bool "Kernel low-level debugging messages via Rockchip RK30/RK31 UART3" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip based platforms.
config DEBUG_RK32_UART2 bool "Kernel low-level debugging messages via Rockchip RK32 UART2" depends on ARCH_ROCKCHIP select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Rockchip RK32xx based platforms.
config DEBUG_R7S72100_SCIF2 bool "Kernel low-level debugging messages via SCIF2 on R7S72100" depends on ARCH_R7S72100 help Say Y here if you want kernel low-level debugging support via SCIF2 on Renesas RZ/A1H (R7S72100).
config DEBUG_R7S9210_SCIF2 bool "Kernel low-level debugging messages via SCIF2 on R7S9210" depends on ARCH_R7S9210 help Say Y here if you want kernel low-level debugging support via SCIF2 on Renesas RZ/A2M (R7S9210).
config DEBUG_R7S9210_SCIF4 bool "Kernel low-level debugging messages via SCIF4 on R7S9210" depends on ARCH_R7S9210 help Say Y here if you want kernel low-level debugging support via SCIF4 on Renesas RZ/A2M (R7S9210).
config DEBUG_RCAR_GEN1_SCIF0 bool "Kernel low-level debugging messages via SCIF0 on R8A7778" depends on ARCH_R8A7778 help Say Y here if you want kernel low-level debugging support via SCIF0 on Renesas R-Car M1A (R8A7778).
config DEBUG_RCAR_GEN1_SCIF2 bool "Kernel low-level debugging messages via SCIF2 on R8A7779" depends on ARCH_R8A7779 help Say Y here if you want kernel low-level debugging support via SCIF2 on Renesas R-Car H1 (R8A7779).
config DEBUG_RCAR_GEN2_SCIF0 bool "Kernel low-level debugging messages via SCIF0 on R-Car Gen2 and RZ/G1" depends on ARCH_R8A7743 || ARCH_R8A7744 || ARCH_R8A7790 || \ ARCH_R8A7791 || ARCH_R8A7792 || ARCH_R8A7793 help Say Y here if you want kernel low-level debugging support via SCIF0 on Renesas RZ/G1M (R8A7743), RZ/G1N (R8A7744), R-Car H2 (R8A7790), M2-W (R8A7791), V2H (R8A7792), or M2-N (R8A7793).
config DEBUG_RCAR_GEN2_SCIF1 bool "Kernel low-level debugging messages via SCIF1 on R8A77470" depends on ARCH_R8A77470 help Say Y here if you want kernel low-level debugging support via SCIF1 on Renesas RZ/G1C (R8A77470).
config DEBUG_RCAR_GEN2_SCIF2 bool "Kernel low-level debugging messages via SCIF2 on R8A7794" depends on ARCH_R8A7794 help Say Y here if you want kernel low-level debugging support via SCIF2 on Renesas R-Car E2 (R8A7794).
config DEBUG_RCAR_GEN2_SCIF4 bool "Kernel low-level debugging messages via SCIF4 on R8A7745" depends on ARCH_R8A7745 help Say Y here if you want kernel low-level debugging support via SCIF4 on Renesas RZ/G1E (R8A7745).
config DEBUG_RCAR_GEN2_SCIFA2 bool "Kernel low-level debugging messages via SCIFA2 on R8A7742" depends on ARCH_R8A7742 help Say Y here if you want kernel low-level debugging support via SCIFA2 on Renesas RZ/G1H (R8A7742).
config DEBUG_RMOBILE_SCIFA0 bool "Kernel low-level debugging messages via SCIFA0 on R8A73A4" depends on ARCH_R8A73A4 help Say Y here if you want kernel low-level debugging support via SCIFA0 on Renesas R-Mobile APE6 (R8A73A4).
config DEBUG_RMOBILE_SCIFA1 bool "Kernel low-level debugging messages via SCIFA1 on R8A7740" depends on ARCH_R8A7740 help Say Y here if you want kernel low-level debugging support via SCIFA1 on Renesas R-Mobile A1 (R8A7740).
config DEBUG_RMOBILE_SCIFA4 bool "Kernel low-level debugging messages via SCIFA4 on SH73A0" depends on ARCH_SH73A0 help Say Y here if you want kernel low-level debugging support via SCIFA4 on Renesas SH-Mobile AG5 (SH73A0).
config DEBUG_S3C_UART0 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS select DEBUG_EXYNOS_UART if ARCH_EXYNOS select DEBUG_S3C64XX_UART if ARCH_S3C64XX select DEBUG_S5PV210_UART if ARCH_S5PV210 bool "Use Samsung S3C UART 0 for low-level debug" help Say Y here if you want the debug print routines to direct their output to UART 0. The port must have been initialised by the boot-loader before use.
config DEBUG_S3C_UART1 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS select DEBUG_EXYNOS_UART if ARCH_EXYNOS select DEBUG_S3C64XX_UART if ARCH_S3C64XX select DEBUG_S5PV210_UART if ARCH_S5PV210 bool "Use Samsung S3C UART 1 for low-level debug" help Say Y here if you want the debug print routines to direct their output to UART 1. The port must have been initialised by the boot-loader before use.
config DEBUG_S3C_UART2 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS select DEBUG_EXYNOS_UART if ARCH_EXYNOS select DEBUG_S3C64XX_UART if ARCH_S3C64XX select DEBUG_S5PV210_UART if ARCH_S5PV210 bool "Use Samsung S3C UART 2 for low-level debug" help Say Y here if you want the debug print routines to direct their output to UART 2. The port must have been initialised by the boot-loader before use.
config DEBUG_S3C_UART3 depends on ARCH_EXYNOS || ARCH_S5PV210 select DEBUG_EXYNOS_UART if ARCH_EXYNOS select DEBUG_S3C64XX_UART if ARCH_S3C64XX select DEBUG_S5PV210_UART if ARCH_S5PV210 bool "Use Samsung S3C UART 3 for low-level debug" help Say Y here if you want the debug print routines to direct their output to UART 3. The port must have been initialised by the boot-loader before use.
config DEBUG_SA1100 depends on ARCH_SA1100 bool "Use SA1100 UARTs for low-level debug" help Say Y here if you want kernel low-level debugging support on SA-11x0 UART ports. The kernel will check for the first enabled UART in a sequence 3-1-2.
config DEBUG_SD5203_UART bool "Hisilicon SD5203 Debug UART" depends on ARCH_SD5203 select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on SD5203 UART.
config DEBUG_SOCFPGA_UART0 depends on ARCH_INTEL_SOCFPGA bool "Use SOCFPGA UART0 for low-level debug" select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
config DEBUG_SOCFPGA_ARRIA10_UART1 depends on ARCH_INTEL_SOCFPGA bool "Use SOCFPGA Arria10 UART1 for low-level debug" select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on SOCFPGA(Arria 10) based platforms.
config DEBUG_SOCFPGA_CYCLONE5_UART1 depends on ARCH_INTEL_SOCFPGA bool "Use SOCFPGA Cyclone 5 UART1 for low-level debug" select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on SOCFPGA(Cyclone 5 and Arria 5) based platforms.
config DEBUG_SUN9I_UART0 bool "Kernel low-level debugging messages via sun9i UART0" depends on MACH_SUN9I select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Allwinner A80 based platforms on the UART0.
config DEBUG_SUNXI_UART0 bool "Kernel low-level debugging messages via sunXi UART0" depends on ARCH_SUNXI select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Allwinner A1X based platforms on the UART0.
config DEBUG_SUNXI_UART1 bool "Kernel low-level debugging messages via sunXi UART1" depends on ARCH_SUNXI select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Allwinner A1X based platforms on the UART1.
config DEBUG_SUNXI_R_UART bool "Kernel low-level debugging messages via sunXi R_UART" depends on MACH_SUN6I || MACH_SUN8I select DEBUG_UART_8250 help Say Y here if you want kernel low-level debugging support on Allwinner A31/A23 based platforms on the R_UART.
config DEBUG_SPEAR3XX bool "Kernel low-level debugging messages via ST SPEAr 3xx/6xx UART" depends on ARCH_SPEAR3XX || ARCH_SPEAR6XX select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on ST SPEAr based platforms.
config DEBUG_SPEAR13XX bool "Kernel low-level debugging messages via ST SPEAr 13xx UART" depends on ARCH_SPEAR13XX select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on ST SPEAr13xx based platforms.
config DEBUG_STIH41X_ASC2 bool "Use StiH415/416 ASC2 UART for low-level debug" depends on ARCH_STI help Say Y here if you want kernel low-level debugging support on STiH415/416 based platforms like b2000, which has default UART wired up to ASC2.
If unsure, say N.
config DEBUG_STIH41X_SBC_ASC1 bool "Use StiH415/416 SBC ASC1 UART for low-level debug" depends on ARCH_STI help Say Y here if you want kernel low-level debugging support on STiH415/416 based platforms like b2020. which has default UART wired up to SBC ASC1.
If unsure, say N.
config DEBUG_STIH418_SBC_ASC0 bool "Use StiH418 SBC ASC0 UART for low-level debug" depends on ARCH_STI help Say Y here if you want kernel low-level debugging support on STiH418 based platforms which has default UART wired up to SBC ASC0.
If unsure, say N.
config STM32F4_DEBUG_UART bool "Use STM32F4 UART for low-level debug" depends on MACH_STM32F429 || MACH_STM32F469 select DEBUG_STM32_UART help Say Y here if you want kernel low-level debugging support on STM32F4 based platforms, which default UART is wired on USART1, but another UART instance can be selected by modifying CONFIG_DEBUG_UART_PHYS.
If unsure, say N.
config STM32F7_DEBUG_UART bool "Use STM32F7 UART for low-level debug" depends on MACH_STM32F746 || MACH_STM32F769 select DEBUG_STM32_UART help Say Y here if you want kernel low-level debugging support on STM32F7 based platforms, which default UART is wired on USART1, but another UART instance can be selected by modifying CONFIG_DEBUG_UART_PHYS.
If unsure, say N.
config STM32H7_DEBUG_UART bool "Use STM32H7 UART for low-level debug" depends on MACH_STM32H743 select DEBUG_STM32_UART help Say Y here if you want kernel low-level debugging support on STM32H7 based platforms, which default UART is wired on USART1, but another UART instance can be selected by modifying CONFIG_DEBUG_UART_PHYS.
If unsure, say N.
config STM32MP1_DEBUG_UART bool "Use STM32MP1 UART for low-level debug" depends on MACH_STM32MP157 select DEBUG_STM32_UART help Say Y here if you want kernel low-level debugging support on STM32MP1-based platforms, where the default UART is wired to UART4, but another UART instance can be selected by modifying CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT.
If unsure, say N.
config TEGRA_DEBUG_UART_AUTO_ODMDATA bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" depends on ARCH_TEGRA select DEBUG_TEGRA_UART help Automatically determines which UART to use for low-level debug based on the ODMDATA value. This value is part of the BCT, and is written to the boot memory device using nvflash, or other flashing tool. When bits 19:18 are 3, then bits 17:15 indicate which UART to use; 0/1/2/3/4 are UART A/B/C/D/E.
config TEGRA_DEBUG_UARTA bool "Kernel low-level debugging messages via Tegra UART A" depends on ARCH_TEGRA select DEBUG_TEGRA_UART help Say Y here if you want kernel low-level debugging support on Tegra based platforms.
config TEGRA_DEBUG_UARTB bool "Kernel low-level debugging messages via Tegra UART B" depends on ARCH_TEGRA select DEBUG_TEGRA_UART help Say Y here if you want kernel low-level debugging support on Tegra based platforms.
config TEGRA_DEBUG_UARTC bool "Kernel low-level debugging messages via Tegra UART C" depends on ARCH_TEGRA select DEBUG_TEGRA_UART help Say Y here if you want kernel low-level debugging support on Tegra based platforms.
config TEGRA_DEBUG_UARTD bool "Kernel low-level debugging messages via Tegra UART D" depends on ARCH_TEGRA select DEBUG_TEGRA_UART help Say Y here if you want kernel low-level debugging support on Tegra based platforms.
config TEGRA_DEBUG_UARTE bool "Kernel low-level debugging messages via Tegra UART E" depends on ARCH_TEGRA select DEBUG_TEGRA_UART help Say Y here if you want kernel low-level debugging support on Tegra based platforms.
config DEBUG_UX500_UART depends on ARCH_U8500 bool "Use Ux500 UART for low-level debug" help Say Y here if you want kernel low-level debugging support on Ux500 based platforms.
config DEBUG_VERSATILE bool "Kernel low-level debugging messages via ARM Versatile UART" depends on ARCH_VERSATILE select DEBUG_UART_PL01X help Say Y here if you want kernel low-level debugging support on ARM Versatile platforms.
config DEBUG_VEXPRESS_UART0_DETECT bool "Autodetect UART0 on Versatile Express Cortex-A core tiles" depends on ARCH_VEXPRESS && CPU_CP15_MMU help This option enables a simple heuristic which tries to determine the motherboard's memory map variant (original or RS1) and then choose the relevant UART0 base address.
Note that this will only work with standard A-class core tiles, and may fail with non-standard SMM or custom software models.
config DEBUG_VEXPRESS_UART0_CA9 bool "Use PL011 UART0 at 0x10009000 (V2P-CA9 core tile)" depends on ARCH_VEXPRESS select DEBUG_UART_PL01X help This option selects UART0 at 0x10009000. Except for custom models, this applies only to the V2P-CA9 tile.
config DEBUG_VEXPRESS_UART0_RS1 bool "Use PL011 UART0 at 0x1c090000 (RS1 complaint tiles)" depends on ARCH_VEXPRESS select DEBUG_UART_PL01X help This option selects UART0 at 0x1c090000. This applies to most of the tiles using the RS1 memory map, including all new A-class core tiles, FPGA-based SMMs and software models.
config DEBUG_VEXPRESS_UART0_CRX bool "Use PL011 UART0 at 0xb0090000 (Cortex-R compliant tiles)" depends on ARCH_VEXPRESS && !MMU select DEBUG_UART_PL01X help This option selects UART0 at 0xb0090000. This is appropriate for Cortex-R series tiles and SMMs, such as Cortex-R5 and Cortex-R7
config DEBUG_VF_UART bool "Vybrid UART" depends on SOC_VF610 help Say Y here if you want kernel low-level debugging support on Vybrid based platforms.
config DEBUG_VT8500_UART0 bool "Use UART0 on VIA/Wondermedia SoCs" depends on ARCH_VT8500 help This option selects UART0 on VIA/Wondermedia System-on-a-chip devices, including VT8500, WM8505, WM8650 and WM8850.
config DEBUG_ZYNQ_UART0 bool "Kernel low-level debugging on Xilinx Zynq using UART0" depends on ARCH_ZYNQ help Say Y here if you want the debug print routines to direct their output to UART0 on the Zynq platform.
config DEBUG_ZYNQ_UART1 bool "Kernel low-level debugging on Xilinx Zynq using UART1" depends on ARCH_ZYNQ help Say Y here if you want the debug print routines to direct their output to UART1 on the Zynq platform.
If you have a ZC702 board and want early boot messages to appear on the USB serial adaptor, select this option.
config DEBUG_ICEDCC bool "Kernel low-level debugging via EmbeddedICE DCC channel" help Say Y here if you want the debug print routines to direct their output to the EmbeddedICE macrocell's DCC channel using co-processor 14. This is known to work on the ARM9 style ICE channel and on the XScale with the PEEDI.
Note that the system will appear to hang during boot if there is nothing connected to read from the DCC.
config DEBUG_SEMIHOSTING bool "Kernel low-level debug output via semihosting I/O" help Semihosting enables code running on an ARM target to use the I/O facilities on a host debugger/emulator through a simple SVC call. The host debugger or emulator must have semihosting enabled for the special svc call to be trapped otherwise the kernel will crash.
This is known to work with OpenOCD, as well as ARM's Fast Models, or any other controlling environment that implements semihosting.
For more details about semihosting, please see chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd.
config DEBUG_LL_UART_8250 bool "Kernel low-level debugging via 8250 UART" help Say Y here if you wish the debug print routes to direct their output to an 8250 UART. You can use this option to provide the parameters for the 8250 UART rather than selecting one of the platform specific options above if you know the parameters for the port.
This option is preferred over the platform specific options; the platform specific options are deprecated and will be soon removed.
config DEBUG_LL_UART_PL01X bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART" help Say Y here if you wish the debug print routes to direct their output to a PL01x Primecell UART. You can use this option to provide the parameters for the UART rather than selecting one of the platform specific options above if you know the parameters for the port.
This option is preferred over the platform specific options; the platform specific options are deprecated and will be soon removed.
endchoice
config DEBUG_AT91_UART bool depends on ARCH_AT91
config DEBUG_EXYNOS_UART bool
config DEBUG_S3C64XX_UART bool
config DEBUG_S5PV210_UART bool
config DEBUG_S3C_UART depends on DEBUG_S3C64XX_UART || DEBUG_S5PV210_UART || \ DEBUG_EXYNOS_UART int default "0" if DEBUG_S3C_UART0 default "1" if DEBUG_S3C_UART1 default "2" if DEBUG_S3C_UART2 default "3" if DEBUG_S3C_UART3
config DEBUG_OMAP2PLUS_UART bool depends on ARCH_OMAP2PLUS
config DEBUG_IMX_UART_PORT int "i.MX Debug UART Port Selection" depends on DEBUG_IMX1_UART || \ DEBUG_IMX25_UART || \ DEBUG_IMX27_UART || \ DEBUG_IMX31_UART || \ DEBUG_IMX35_UART || \ DEBUG_IMX50_UART || \ DEBUG_IMX51_UART || \ DEBUG_IMX53_UART || \ DEBUG_IMX6Q_UART || \ DEBUG_IMX6SL_UART || \ DEBUG_IMX6SX_UART || \ DEBUG_IMX6UL_UART || \ DEBUG_IMX7D_UART default 1 help Choose UART port on which kernel low-level debug messages should be output.
config DEBUG_VF_UART_PORT int "Vybrid Debug UART Port Selection" if DEBUG_VF_UART default 1 range 0 3 depends on SOC_VF610 help Choose UART port on which kernel low-level debug messages should be output.
config DEBUG_TEGRA_UART bool depends on ARCH_TEGRA
config DEBUG_STM32_UART bool depends on ARCH_STM32
config DEBUG_UART_FLOW_CONTROL bool "Enable flow control (CTS) for the debug UART" depends on DEBUG_LL default y if DEBUG_FOOTBRIDGE_COM1 || DEBUG_GEMINI || ARCH_RPC help Some UART ports are connected to terminals that will use modem control signals to indicate whether they are ready to receive text. In practice this means that the terminal is asserting the special control signal CTS (Clear To Send). If your debug UART supports this and your debug terminal will require it, enable this option.
config DEBUG_LL_INCLUDE string default "debug/sa1100.S" if DEBUG_SA1100 default "debug/palmchip.S" if DEBUG_UART_8250_PALMCHIP default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250 default "debug/at91.S" if DEBUG_AT91_UART default "debug/asm9260.S" if DEBUG_ASM9260_UART default "debug/clps711x.S" if DEBUG_CLPS711X_UART1 || DEBUG_CLPS711X_UART2 default "debug/dc21285.S" if DEBUG_DC21285_PORT default "debug/meson.S" if DEBUG_MESON_UARTAO default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X default "debug/exynos.S" if DEBUG_EXYNOS_UART default "debug/icedcc.S" if DEBUG_ICEDCC default "debug/imx.S" if DEBUG_IMX1_UART || \ DEBUG_IMX25_UART || \ DEBUG_IMX27_UART || \ DEBUG_IMX31_UART || \ DEBUG_IMX35_UART || \ DEBUG_IMX50_UART || \ DEBUG_IMX51_UART || \ DEBUG_IMX53_UART || \ DEBUG_IMX6Q_UART || \ DEBUG_IMX6SL_UART || \ DEBUG_IMX6SX_UART || \ DEBUG_IMX6UL_UART || \ DEBUG_IMX7D_UART default "debug/msm.S" if DEBUG_QCOM_UARTDM default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF2 default "debug/renesas-scif.S" if DEBUG_R7S9210_SCIF4 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF0 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN1_SCIF2 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF0 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF1 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF2 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIF4 default "debug/renesas-scif.S" if DEBUG_RCAR_GEN2_SCIFA2 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA0 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA1 default "debug/renesas-scif.S" if DEBUG_RMOBILE_SCIFA4 default "debug/s3c24xx.S" if DEBUG_S3C64XX_UART default "debug/s5pv210.S" if DEBUG_S5PV210_UART default "debug/sti.S" if DEBUG_STIH41X_ASC2 default "debug/sti.S" if DEBUG_STIH41X_SBC_ASC1 default "debug/sti.S" if DEBUG_STIH418_SBC_ASC0 default "debug/stm32.S" if DEBUG_STM32_UART default "debug/tegra.S" if DEBUG_TEGRA_UART default "debug/ux500.S" if DEBUG_UX500_UART default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT default "debug/vf.S" if DEBUG_VF_UART default "debug/vt8500.S" if DEBUG_VT8500_UART0 default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1 default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART || DEBUG_BCMBCA default "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0 default "debug/brcmstb.S" if DEBUG_BRCMSTB_UART default "mach/debug-macro.S"
# Compatibility options for PL01xconfig DEBUG_UART_PL01X bool
# Compatibility options for 8250config DEBUG_UART_8250 def_bool ARCH_IXP4XX || ARCH_RPC
config DEBUG_UART_PHYS hex "Physical base address of debug UART" default 0x01c28000 if DEBUG_SUNXI_UART0 default 0x01c28400 if DEBUG_SUNXI_UART1 default 0x01d0c000 if DEBUG_DAVINCI_DA8XX_UART1 default 0x01d0d000 if DEBUG_DAVINCI_DA8XX_UART2 default 0x01f02800 if DEBUG_SUNXI_R_UART default 0x02530c00 if DEBUG_KEYSTONE_UART0 default 0x02531000 if DEBUG_KEYSTONE_UART1 default 0x03010fe0 if ARCH_RPC default 0x07000000 if DEBUG_SUN9I_UART0 default 0x09530000 if DEBUG_STIH418_SBC_ASC0 default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ DEBUG_VEXPRESS_UART0_CA9 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT default 0x10124000 if DEBUG_RK3X_UART0 default 0x10126000 if DEBUG_RK3X_UART1 default 0x101f1000 if DEBUG_VERSATILE default 0x101fb000 if DEBUG_NOMADIK_UART default 0x10210000 if DEBUG_RV1108_UART2 default 0x10220000 if DEBUG_RV1108_UART1 default 0x10230000 if DEBUG_RV1108_UART0 default 0x11002000 if DEBUG_MT8127_UART0 default 0x11006000 if DEBUG_MT6589_UART0 default 0x11009000 if DEBUG_MT8135_UART3 default 0x16000000 if DEBUG_INTEGRATOR default 0x1600d000 if DEBUG_SD5203_UART default 0x18000300 if DEBUG_BCM_5301X default 0x18000400 if DEBUG_BCM_HR2 default 0x18023000 if DEBUG_BCM_IPROC_UART3 default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1 default 0x1f221000 if DEBUG_MSTARV7_PMUART default 0x20001000 if DEBUG_HIP01_UART default 0x20060000 if DEBUG_RK29_UART0 default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 default 0x20201000 if DEBUG_BCM2835 default 0x3e000000 if DEBUG_BCM_KONA_UART default 0x3f201000 if DEBUG_BCM2836 default 0x40010000 if STM32MP1_DEBUG_UART default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \ STM32H7_DEBUG_UART default 0x40028000 if DEBUG_AT91_SAMV7_USART1 default 0x40081000 if DEBUG_LPC18XX_UART0 default 0x40090000 if DEBUG_LPC32XX default 0x40100000 if DEBUG_PXA_UART1 default 0x42000000 if DEBUG_GEMINI default 0x44e09000 if DEBUG_AM33XXUART1 default 0x48020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 default 0x48022000 if DEBUG_TI81XXUART2 default 0x48024000 if DEBUG_TI81XXUART3 default 0x4806a000 if DEBUG_OMAP2UART1 default 0x4806c000 if DEBUG_OMAP2UART2 default 0x4806e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 default 0x49020000 if DEBUG_OMAP3UART3 default 0x49042000 if DEBUG_OMAP3UART4 default 0x7c0003f8 if DEBUG_FOOTBRIDGE_COM1 default 0x7f005000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 default 0x7f005400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 default 0x7f005800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 default 0x7f005c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 default 0x80010000 if DEBUG_ASM9260_UART default 0x80070000 if DEBUG_IMX23_UART default 0x80074000 if DEBUG_IMX28_UART default 0x808c0000 if DEBUG_EP93XX || ARCH_EP93XX default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX default 0xc8000000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN default 0xc8000003 if ARCH_IXP4XX && CPU_BIG_ENDIAN default 0xd0000000 if DEBUG_SPEAR3XX default 0xd0012000 if DEBUG_MVEBU_UART0 default 0xc81004c0 if DEBUG_MESON_UARTAO default 0xd4017000 if DEBUG_MMP_UART2 default 0xd4018000 if DEBUG_MMP_UART3 default 0xe0000000 if DEBUG_SPEAR13XX default 0xe0064200 if DEBUG_AT91_LAN966_FLEXCOM default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 default 0xe4007000 if DEBUG_HIP04_UART default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 default 0xe6c60000 if DEBUG_RCAR_GEN2_SCIFA2 default 0xe6c80000 if DEBUG_RMOBILE_SCIFA4 default 0xe6e58000 if DEBUG_RCAR_GEN2_SCIF2 default 0xe6e60000 if DEBUG_RCAR_GEN2_SCIF0 default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1 default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4 default 0xe8008000 if DEBUG_R7S72100_SCIF2 || DEBUG_R7S9210_SCIF2 default 0xe8009000 if DEBUG_R7S9210_SCIF4 default 0xf0000000 if DEBUG_DIGICOLOR_UA0 default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE default 0xf7fc9000 if DEBUG_BERLIN_UART default 0xf8020000 if DEBUG_AT91_SAMA5D2_UART1 default 0xf8b00000 if DEBUG_HIX5HD2_UART default 0xf991e000 if DEBUG_QCOM_UARTDM default 0xfc00c000 if DEBUG_AT91_SAMA5D4_USART3 default 0xfcb00000 if DEBUG_HI3620_UART default 0xfd883000 if DEBUG_ALPINE_UART0 default 0xfe531000 if DEBUG_STIH41X_SBC_ASC1 default 0xfed32000 if DEBUG_STIH41X_ASC2 default 0xff690000 if DEBUG_RK32_UART2 default 0xff800640 if DEBUG_BCMBCA default 0xffc02000 if DEBUG_SOCFPGA_UART0 default 0xffc02100 if DEBUG_SOCFPGA_ARRIA10_UART1 default 0xffc03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0 default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2 default 0xfff36000 if DEBUG_HIGHBANK_UART default 0xfffb0000 if DEBUG_OMAP1UART1 default 0xfffb0800 if DEBUG_OMAP1UART2 default 0xfffb9800 if DEBUG_OMAP1UART3 default 0xfffe8600 if DEBUG_BCM63XX_UART default 0xffffee00 if DEBUG_AT91_SAM9263_DBGU default 0xfffff200 if DEBUG_AT91_RM9200_DBGU depends on ARCH_EP93XX || \ DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ DEBUG_R7S9210_SCIF2 || DEBUG_R7S9210_SCIF4 || \ DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF1 || \ DEBUG_RCAR_GEN2_SCIF2 || DEBUG_RCAR_GEN2_SCIF4 || \ DEBUG_RCAR_GEN2_SCIFA2 || \ DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \ DEBUG_RMOBILE_SCIFA4 || \ DEBUG_S3C64XX_UART || \ DEBUG_BCM63XX_UART || DEBUG_BCMBCA || DEBUG_ASM9260_UART || \ DEBUG_DIGICOLOR_UA0 || \ DEBUG_AT91_UART || DEBUG_STM32_UART || \ DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ DEBUG_STIH418_SBC_ASC0
config DEBUG_UART_VIRT hex "Virtual base address of debug UART" default 0xc881f000 if DEBUG_RV1108_UART2 default 0xc8821000 if DEBUG_RV1108_UART1 default 0xc8912000 if DEBUG_RV1108_UART0 default 0xe0010fe0 if ARCH_RPC default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 default 0xf0010000 if DEBUG_ASM9260_UART default 0xf0100000 if DEBUG_DIGICOLOR_UA0 default 0xf01fb000 if DEBUG_NOMADIK_UART default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836 default 0xf0221000 if DEBUG_MSTARV7_PMUART default 0xf1000300 if DEBUG_BCM_5301X default 0xf1000400 if DEBUG_BCM_HR2 default 0xf1002000 if DEBUG_MT8127_UART0 default 0xf1006000 if DEBUG_MT6589_UART0 default 0xf1009000 if DEBUG_MT8135_UART3 default 0xf1023000 if DEBUG_BCM_IPROC_UART3 default 0xf11f1000 if DEBUG_VERSATILE default 0xf1600000 if DEBUG_INTEGRATOR default 0xf1c28000 if DEBUG_SUNXI_UART0 default 0xf1c28400 if DEBUG_SUNXI_UART1 default 0xf1f02800 if DEBUG_SUNXI_R_UART default 0xf31004c0 if DEBUG_MESON_UARTAO default 0xf4090000 if DEBUG_LPC32XX default 0xf4200000 if DEBUG_GEMINI default 0xf6200000 if DEBUG_PXA_UART1 default 0xf7000000 if DEBUG_SUN9I_UART0 default 0xf7000000 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART0 default 0xf7000400 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART1 default 0xf7000800 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART2 default 0xf7000c00 if DEBUG_S3C64XX_UART && DEBUG_S3C_UART3 default 0xf7020000 if DEBUG_AT91_SAMA5D2_UART1 default 0xf7fc9000 if DEBUG_BERLIN_UART default 0xf8007000 if DEBUG_HIP04_UART default 0xf8009000 if DEBUG_VEXPRESS_UART0_CA9 default 0xf8090000 if DEBUG_VEXPRESS_UART0_RS1 default 0xf8ffee00 if DEBUG_AT91_SAM9263_DBGU default 0xf8fff200 if DEBUG_AT91_RM9200_DBGU default 0xf9530000 if DEBUG_STIH418_SBC_ASC0 default 0xf9e09000 if DEBUG_AM33XXUART1 default 0xfa020000 if DEBUG_OMAP4UART3 || DEBUG_TI81XXUART1 default 0xfa022000 if DEBUG_TI81XXUART2 default 0xfa024000 if DEBUG_TI81XXUART3 default 0xfa06a000 if DEBUG_OMAP2UART1 default 0xfa06c000 if DEBUG_OMAP2UART2 default 0xfa06e000 if DEBUG_OMAP2UART3 || DEBUG_OMAP4UART4 default 0xfa71e000 if DEBUG_QCOM_UARTDM default 0xfb009000 if DEBUG_REALVIEW_STD_PORT default 0xfb00c000 if DEBUG_AT91_SAMA5D4_USART3 default 0xfb020000 if DEBUG_OMAP3UART3 default 0xfb042000 if DEBUG_OMAP3UART4 default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT default 0xfcfe8600 if DEBUG_BCM63XX_UART default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX default 0xfd064200 if DEBUG_AT91_LAN966_FLEXCOM default 0xfd531000 if DEBUG_STIH41X_SBC_ASC1 default 0xfd883000 if DEBUG_ALPINE_UART0 default 0xfdd32000 if DEBUG_STIH41X_ASC2 default 0xfe010000 if STM32MP1_DEBUG_UART default 0xfe017000 if DEBUG_MMP_UART2 default 0xfe018000 if DEBUG_MMP_UART3 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART default 0xfe300000 if DEBUG_BCM_KONA_UART default 0xfe300640 if DEBUG_BCMBCA default 0xfeb00000 if DEBUG_HI3620_UART || DEBUG_HIX5HD2_UART default 0xfeb24000 if DEBUG_RK3X_UART0 default 0xfeb26000 if DEBUG_RK3X_UART1 default 0xfeb30c00 if DEBUG_KEYSTONE_UART0 default 0xfeb31000 if DEBUG_KEYSTONE_UART1 default 0xfec02000 if DEBUG_SOCFPGA_UART0 default 0xfec02100 if DEBUG_SOCFPGA_ARRIA10_UART1 default 0xfec03000 if DEBUG_SOCFPGA_CYCLONE5_UART1 default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE default 0xfec90000 if DEBUG_RK32_UART2 default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1 default 0xfed0d000 if DEBUG_DAVINCI_DA8XX_UART2 || DEBUG_SD5203_UART default 0xfed60000 if DEBUG_RK29_UART0 default 0xfed64000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2 default 0xfed68000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3 default 0xfedc0000 if DEBUG_EP93XX default 0xfee003f8 if DEBUG_FOOTBRIDGE_COM1 default 0xfee20000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART default 0xfec00000 if ARCH_IXP4XX && !CPU_BIG_ENDIAN default 0xfec00003 if ARCH_IXP4XX && CPU_BIG_ENDIAN default 0xfef36000 if DEBUG_HIGHBANK_UART default 0xff0b0000 if DEBUG_OMAP1UART1 default 0xff0b0800 if DEBUG_OMAP1UART2 default 0xff0b9800 if DEBUG_OMAP1UART3 default 0xffd01000 if DEBUG_HIP01_UART default DEBUG_UART_PHYS if !MMU depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ DEBUG_QCOM_UARTDM || \ DEBUG_S3C64XX_UART || \ DEBUG_BCM63XX_UART || DEBUG_BCMBCA || DEBUG_ASM9260_UART || \ DEBUG_DIGICOLOR_UA0 || \ DEBUG_AT91_UART || DEBUG_STM32_UART || \ DEBUG_STIH41X_ASC2 || DEBUG_STIH41X_SBC_ASC1 || \ DEBUG_STIH418_SBC_ASC0
config DEBUG_UART_8250_SHIFT int "Register offset shift for the 8250 debug UART" depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 default 0 if DEBUG_FOOTBRIDGE_COM1 || DEBUG_BCM_5301X || \ DEBUG_BCM_HR2 default 3 if DEBUG_MSTARV7_PMUART default 2
config DEBUG_UART_8250_WORD bool "Use 32-bit accesses for 8250 UART" depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 depends on DEBUG_UART_8250_SHIFT >= 2 default y if DEBUG_SOCFPGA_UART0 || DEBUG_SOCFPGA_ARRIA10_UART1 || \ DEBUG_SOCFPGA_CYCLONE5_UART1 || DEBUG_KEYSTONE_UART0 || \ DEBUG_KEYSTONE_UART1 || DEBUG_ALPINE_UART0 || \ DEBUG_DAVINCI_DA8XX_UART1 || DEBUG_DAVINCI_DA8XX_UART2 || \ DEBUG_BCM_IPROC_UART3 || DEBUG_BCM_KONA_UART || \ DEBUG_RK32_UART2
config DEBUG_UART_8250_PALMCHIP bool "8250 UART is Palmchip BK-310x" depends on DEBUG_LL_UART_8250 || DEBUG_UART_8250 help Palmchip provides a UART implementation compatible with 16550 except for having a different register layout. Say Y here if the debug UART is of this type.
config DEBUG_UNCOMPRESS bool "Enable decompressor debugging via DEBUG_LL output" depends on !ARCH_MULTIPLATFORM depends on !(ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100) depends on DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ (!DEBUG_TEGRA_UART || !ZBOOT_ROM) && \ !DEBUG_BRCMSTB_UART && !DEBUG_SEMIHOSTING help Say Y here to enable debug output in the decompressor code, using the selected DEBUG_LL output method.
config UNCOMPRESS_INCLUDE string default "mach/uncompress.h" if ARCH_FOOTBRIDGE || ARCH_RPC || ARCH_SA1100 default "debug/uncompress.h"
config EARLY_PRINTK bool "Early printk" depends on DEBUG_LL help Say Y here if you want to have an early console using the kernel low-level debugging functions. Add earlyprintk to your kernel parameters to enable this console.
config ARM_KPROBES_TEST tristate "Kprobes test module" depends on KPROBES && MODULES help Perform tests of kprobes API and instruction set simulation.
config PID_IN_CONTEXTIDR bool "Write the current PID to the CONTEXTIDR register" depends on CPU_COPY_V6 help Enabling this option causes the kernel to write the current PID to the PROCID field of the CONTEXTIDR register, at the expense of some additional instructions during context switch. Say Y here only if you are planning to use hardware trace tools with this kernel.
source "drivers/hwtracing/coresight/Kconfig"