# SPDX-License-Identifier: GPL-2.0

  config TRACE_IRQFLAGS_SUPPORT
  	bool
  	default y

  config EARLY_PRINTK

  	bool "Early printk" if EXPERT

  	depends on SYS_HAS_EARLY_PRINTK
  	default y
  	help
  	  This option enables special console drivers which allow the kernel
  	  to print messages very early in the bootup process.
  
  	  This is useful for kernel debugging when your machine crashes very
  	  early before the console code is initialized. For normal operation,
  	  it is not recommended because it looks ugly on some machines and
  	  doesn't cooperate with an X server. You should normally say N here,
  	  unless you want to debug such a crash.

  config EARLY_PRINTK_8250

  	bool
  	depends on EARLY_PRINTK && USE_GENERIC_EARLY_PRINTK_8250
  	default y

  	help

  	  "8250/16550 and compatible serial early printk driver"

  	  If you say Y here, it will be possible to use a 8250/16550 serial
  	  port as the boot console.

  config USE_GENERIC_EARLY_PRINTK_8250
  	bool

  config CMDLINE_BOOL
  	bool "Built-in kernel command line"

  	help
  	  For most systems, it is firmware or second stage bootloader that
  	  by default specifies the kernel command line options.  However,
  	  it might be necessary or advantageous to either override the
  	  default kernel command line or add a few extra options to it.
  	  For such cases, this option allows you to hardcode your own
  	  command line options directly into the kernel.  For that, you
  	  should choose 'Y' here, and fill in the extra boot arguments
  	  in CONFIG_CMDLINE.
  
  	  The built-in options will be concatenated to the default command
  	  line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default
  	  command line will be ignored and replaced by the built-in string.
  
  	  Most MIPS systems will normally expect 'N' here and rely upon
  	  the command line from the firmware or the second-stage bootloader.

  config CMDLINE
  	string "Default kernel command string"

  	depends on CMDLINE_BOOL

  	help

  	  On some platforms, there is currently no way for the boot loader to

  	  pass arguments to the kernel.  For these platforms, and for the cases
  	  when you want to add some extra options to the command line or ignore
  	  the default command line, you can supply some command-line options at
  	  build time by entering them here.  In other cases you can specify
  	  kernel args so that you don't have to set them up in board prom
  	  initialization routines.
  
  	  For more information, see the CMDLINE_BOOL and CMDLINE_OVERRIDE
  	  options.
  
  config CMDLINE_OVERRIDE

  	bool "Built-in command line overrides firmware arguments"

  	depends on CMDLINE_BOOL
  	help
  	  By setting this option to 'Y' you will have your kernel ignore
  	  command line arguments from firmware or second stage bootloader.
  	  Instead, the built-in command line will be used exclusively.
  
  	  Normally, you will choose 'N' here.

  config SB1XXX_CORELIS
  	bool "Corelis Debugger"
  	depends on SIBYTE_SB1xxx_SOC

  	select DEBUG_INFO if !COMPILE_TEST

  	help
  	  Select compile flags that produce code that can be processed by the
  	  Corelis mksym utility and UDB Emulator.

  config DEBUG_ZBOOT
  	bool "Enable compressed kernel support debugging"
  	depends on DEBUG_KERNEL && SYS_SUPPORTS_ZBOOT
  	default n
  	help
  	  If you want to add compressed kernel support to a new board, and the
  	  board supports uart16550 compatible serial port, please select
  	  SYS_SUPPORTS_ZBOOT_UART16550 for your board and enable this option to
  	  debug it.
  
  	  If your board doesn't support uart16550 compatible serial port, you
  	  can try to select SYS_SUPPORTS_ZBOOT and use the other methods to
  	  debug it. for example, add a new serial port support just as
  	  arch/mips/boot/compressed/uart-16550.c does.
  
  	  After the compressed kernel support works, please disable this option
  	  to reduce the kernel image size and speed up the booting procedure a
  	  little.

  config SPINLOCK_TEST
  	bool "Enable spinlock timing tests in debugfs"
  	depends on DEBUG_FS
  	default n
  	help
  	  Add several files to the debugfs to test spinlock speed.

  config SCACHE_DEBUGFS
  	bool "L2 cache debugfs entries"
  	depends on DEBUG_FS
  	help
  	  Enable this to allow parts of the L2 cache configuration, such as
  	  whether or not prefetching is enabled, to be exposed to userland
  	  via debugfs.
  
  	  If unsure, say N.

  menuconfig MIPS_CPS_NS16550_BOOL

  	bool "CPS SMP NS16550 UART output"
  	depends on MIPS_CPS
  	help
  	  Output debug information via an ns16550 compatible UART if exceptions
  	  occur early in the boot process of a secondary core.

  if MIPS_CPS_NS16550_BOOL
  
  config MIPS_CPS_NS16550
  	def_bool MIPS_CPS_NS16550_BASE != 0

  
  config MIPS_CPS_NS16550_BASE
  	hex "UART Base Address"
  	default 0x1b0003f8 if MIPS_MALTA

  	default 0

  	help
  	  The base address of the ns16550 compatible UART on which to output
  	  debug information from the early stages of core startup.

  	  This is only used if non-zero.

  config MIPS_CPS_NS16550_SHIFT
  	int "UART Register Shift"

  	default 0

  	help
  	  The number of bits to shift ns16550 register indices by in order to
  	  form their addresses. That is, log base 2 of the span between
  	  adjacent ns16550 registers in the system.

  config MIPS_CPS_NS16550_WIDTH
  	int "UART Register Width"
  	default 1
  	help
  	  ns16550 registers width. UART registers IO access methods will be
  	  selected in accordance with this parameter. By setting it to 1, 2 or
  	  4 UART registers will be accessed by means of lb/sb, lh/sh or lw/sw
  	  instructions respectively. Any value not from that set activates
  	  lb/sb instructions.

  endif # MIPS_CPS_NS16550_BOOL