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linux/arch/mn10300/Kconfig
Michael S. Tsirkin 34f1bdee19 mn10300: switch to GENERIC_PCI_IOMAP 
The pci_iomap variant that arch/mn10300/unit-asb2305/pci-iomap.c
uses differs from the generic one in that it does
not use ioremap_nocache for PCI addresses.
However, it turns out that PCI addresses are
automatically noncached, so switching to ioremap_nocache
and to the generic implementation is safe.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-12-04 16:00:17 +02:00

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config MN10300
def_bool y
select HAVE_OPROFILE
select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select HAVE_ARCH_TRACEHOOK
select HAVE_ARCH_KGDB
config AM33_2
def_bool n
config AM33_3
def_bool n
config AM34_2
def_bool n
select MN10300_HAS_ATOMIC_OPS_UNIT
select MN10300_HAS_CACHE_SNOOP
config ERRATUM_NEED_TO_RELOAD_MMUCTR
def_bool y if AM33_3 || AM34_2
config MMU
def_bool y
config HIGHMEM
def_bool n
config NUMA
def_bool n
config UID16
def_bool y
config RWSEM_GENERIC_SPINLOCK
def_bool y
config RWSEM_XCHGADD_ALGORITHM
bool
config GENERIC_CALIBRATE_DELAY
def_bool y
config GENERIC_CMOS_UPDATE
def_bool n
config GENERIC_HWEIGHT
def_bool y
config GENERIC_CLOCKEVENTS
def_bool y
config GENERIC_BUG
def_bool y
config QUICKLIST
def_bool y
config ARCH_HAS_ILOG2_U32
def_bool y
config HOTPLUG_CPU
def_bool n
source "init/Kconfig"
source "kernel/Kconfig.freezer"
menu "Panasonic MN10300 system setup"
choice
prompt "Unit type"
default MN10300_UNIT_ASB2303
help
This option specifies board for which the kernel will be
compiled. It affects the external peripherals catered for.
config MN10300_UNIT_ASB2303
bool "ASB2303"
config MN10300_UNIT_ASB2305
bool "ASB2305"
config MN10300_UNIT_ASB2364
bool "ASB2364"
select SMSC911X_ARCH_HOOKS if SMSC911X
endchoice
choice
prompt "Processor support"
default MN10300_PROC_MN103E010
help
This option specifies the processor for which the kernel will be
compiled. It affects the on-chip peripherals catered for.
config MN10300_PROC_MN103E010
bool "MN103E010"
depends on MN10300_UNIT_ASB2303 || MN10300_UNIT_ASB2305
select AM33_2
select MN10300_PROC_HAS_TTYSM0
select MN10300_PROC_HAS_TTYSM1
select MN10300_PROC_HAS_TTYSM2
config MN10300_PROC_MN2WS0050
bool "MN2WS0050"
depends on MN10300_UNIT_ASB2364
select AM34_2
select MN10300_PROC_HAS_TTYSM0
select MN10300_PROC_HAS_TTYSM1
select MN10300_PROC_HAS_TTYSM2
endchoice
config MN10300_HAS_ATOMIC_OPS_UNIT
def_bool n
help
This should be enabled if the processor has an atomic ops unit
capable of doing LL/SC equivalent operations.
config FPU
bool "FPU present"
default y
depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
config LAZY_SAVE_FPU
bool "Save FPU state lazily"
default y
depends on FPU && !SMP
help
Enable this to be lazy in the saving of the FPU state to the owning
task's thread struct. This is useful if most tasks on the system
don't use the FPU as only those tasks that use it will pass it
between them, and the state needn't be saved for a task that isn't
using it.
This can't be so easily used on SMP as the process that owns the FPU
state on a CPU may be currently running on another CPU, so for the
moment, it is disabled.
source "arch/mn10300/mm/Kconfig.cache"
config MN10300_TLB_USE_PIDR
def_bool y
menu "Memory layout options"
config KERNEL_RAM_BASE_ADDRESS
hex "Base address of kernel RAM"
default "0x90000000"
config INTERRUPT_VECTOR_BASE
hex "Base address of vector table"
default "0x90000000"
help
The base address of the vector table will be programmed into
the TBR register. It must be on 16MiB address boundary.
config KERNEL_TEXT_ADDRESS
hex "Base address of kernel"
default "0x90001000"
config KERNEL_ZIMAGE_BASE_ADDRESS
hex "Base address of compressed vmlinux image"
default "0x50700000"
config BOOT_STACK_OFFSET
hex
default "0xF00" if SMP
default "0xFF0" if !SMP
config BOOT_STACK_SIZE
hex
depends on SMP
default "0x100"
endmenu
config SMP
bool "Symmetric multi-processing support"
default y
select USE_GENERIC_SMP_HELPERS
depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050
---help---
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
you have a system with more than one CPU, say Y.
If you say N here, the kernel will run on single and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
singleprocessor machines. On a singleprocessor machine, the kernel
will run faster if you say N here.
See also <file:Documentation/x86/i386/IO-APIC.txt>,
<file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
config NR_CPUS
int
depends on SMP
default "2"
source "kernel/Kconfig.preempt"
config MN10300_CURRENT_IN_E2
bool "Hold current task address in E2 register"
depends on !SMP
default y
help
This option removes the E2/R2 register from the set available to gcc
for normal use and instead uses it to store the address of the
current process's task_struct whilst in the kernel.
This means the kernel doesn't need to calculate the address each time
"current" is used (take SP, AND with mask and dereference pointer
just to get the address), and instead can just use E2+offset
addressing each time.
This has no effect on userspace.
config MN10300_USING_JTAG
bool "Using JTAG to debug kernel"
default y
help
This options indicates that JTAG will be used to debug the kernel. It
suppresses the use of certain hardware debugging features, such as
single-stepping, which are taken over completely by the JTAG unit.
source "kernel/Kconfig.hz"
source "kernel/time/Kconfig"
config MN10300_RTC
bool "Using MN10300 RTC"
depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050
select GENERIC_CMOS_UPDATE
default n
help
This option enables support for the RTC, thus enabling time to be
tracked, even when system is powered down. This is available on-chip
on the MN103E010.
config MN10300_WD_TIMER
bool "Using MN10300 watchdog timer"
default y
help
This options indicates that the watchdog timer will be used.
config PCI
bool "Use PCI"
depends on MN10300_UNIT_ASB2305
default y
select GENERIC_PCI_IOMAP
help
Some systems (such as the ASB2305) have PCI onboard. If you have one
of these boards and you wish to use the PCI facilities, say Y here.
The PCI-HOWTO, available from
<http://www.tldp.org/docs.html#howto>, contains valuable
information about which PCI hardware does work under Linux and which
doesn't.
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
menu "MN10300 internal serial options"
config MN10300_PROC_HAS_TTYSM0
bool
default n
config MN10300_PROC_HAS_TTYSM1
bool
default n
config MN10300_PROC_HAS_TTYSM2
bool
default n
config MN10300_TTYSM
bool "Support for ttySM serial ports"
depends on MN10300
default y
select SERIAL_CORE
help
This option enables support for the on-chip serial ports that the
MN10300 has available.
config MN10300_TTYSM_CONSOLE
bool "Support for console on ttySM serial ports"
depends on MN10300_TTYSM
select SERIAL_CORE_CONSOLE
help
This option enables support for a console on the on-chip serial ports
that the MN10300 has available.
#
# /dev/ttySM0
#
config MN10300_TTYSM0
bool "Enable SIF0 (/dev/ttySM0)"
depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM0
help
Enable access to SIF0 through /dev/ttySM0 or gdb-stub
choice
prompt "Select the timer to supply the clock for SIF0"
default MN10300_TTYSM0_TIMER8
depends on MN10300_TTYSM0
config MN10300_TTYSM0_TIMER8
bool "Use timer 8 (16-bit)"
config MN10300_TTYSM0_TIMER2
bool "Use timer 2 (8-bit)"
endchoice
#
# /dev/ttySM1
#
config MN10300_TTYSM1
bool "Enable SIF1 (/dev/ttySM1)"
depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM1
help
Enable access to SIF1 through /dev/ttySM1 or gdb-stub
choice
prompt "Select the timer to supply the clock for SIF1"
default MN10300_TTYSM1_TIMER12 \
if !(AM33_2 || AM33_3)
default MN10300_TTYSM1_TIMER9 \
if AM33_2 || AM33_3
depends on MN10300_TTYSM1
config MN10300_TTYSM1_TIMER12
bool "Use timer 12 (16-bit)"
depends on !(AM33_2 || AM33_3)
config MN10300_TTYSM1_TIMER9
bool "Use timer 9 (16-bit)"
depends on AM33_2 || AM33_3
config MN10300_TTYSM1_TIMER3
bool "Use timer 3 (8-bit)"
depends on AM33_2 || AM33_3
endchoice
#
# /dev/ttySM2
#
config MN10300_TTYSM2
bool "Enable SIF2 (/dev/ttySM2)"
depends on MN10300_TTYSM && MN10300_PROC_HAS_TTYSM2
help
Enable access to SIF2 through /dev/ttySM2 or gdb-stub
choice
prompt "Select the timer to supply the clock for SIF2"
default MN10300_TTYSM2_TIMER3 \
if !(AM33_2 || AM33_3)
default MN10300_TTYSM2_TIMER10 \
if AM33_2 || AM33_3
depends on MN10300_TTYSM2
config MN10300_TTYSM2_TIMER9
bool "Use timer 9 (16-bit)"
depends on !(AM33_2 || AM33_3)
config MN10300_TTYSM2_TIMER1
bool "Use timer 1 (8-bit)"
depends on !(AM33_2 || AM33_3)
config MN10300_TTYSM2_TIMER3
bool "Use timer 3 (8-bit)"
depends on !(AM33_2 || AM33_3)
config MN10300_TTYSM2_TIMER10
bool "Use timer 10 (16-bit)"
depends on AM33_2 || AM33_3
endchoice
config MN10300_TTYSM2_CTS
bool "Enable the use of the CTS line /dev/ttySM2"
depends on MN10300_TTYSM2 && AM33_2
endmenu
menu "Interrupt request priority options"
comment "[!] NOTE: A lower number/level indicates a higher priority (0 is highest, 6 is lowest)"
comment "____Non-maskable interrupt levels____"
comment "The following must be set to a higher priority than local_irq_disable() and on-chip serial"
config DEBUGGER_IRQ_LEVEL
int "DEBUGGER interrupt priority"
depends on KERNEL_DEBUGGER
range 0 1 if LINUX_CLI_LEVEL = 2
range 0 2 if LINUX_CLI_LEVEL = 3
range 0 3 if LINUX_CLI_LEVEL = 4
range 0 4 if LINUX_CLI_LEVEL = 5
range 0 5 if LINUX_CLI_LEVEL = 6
default 0
comment "The following must be set to a higher priority than local_irq_disable()"
config MN10300_SERIAL_IRQ_LEVEL
int "MN10300 on-chip serial interrupt priority"
depends on MN10300_TTYSM
range 1 1 if LINUX_CLI_LEVEL = 2
range 1 2 if LINUX_CLI_LEVEL = 3
range 1 3 if LINUX_CLI_LEVEL = 4
range 1 4 if LINUX_CLI_LEVEL = 5
range 1 5 if LINUX_CLI_LEVEL = 6
default 1
comment "-"
comment "____Maskable interrupt levels____"
config LINUX_CLI_LEVEL
int "The highest interrupt priority excluded by local_irq_disable() (2-6)"
range 2 6
default 2
help
local_irq_disable() doesn't actually disable maskable interrupts -
what it does is restrict the levels of interrupt which are permitted
(a lower level indicates a higher priority) by lowering the value in
EPSW.IM from 7. Any interrupt is permitted for which the level is
lower than EPSW.IM.
Certain interrupts, such as DEBUGGER and virtual MN10300 on-chip
serial DMA interrupts are allowed to interrupt normal disabled
sections.
comment "The following must be set to a equal to or lower priority than LINUX_CLI_LEVEL"
config TIMER_IRQ_LEVEL
int "Kernel timer interrupt priority"
range LINUX_CLI_LEVEL 6
default 4
config PCI_IRQ_LEVEL
int "PCI interrupt priority"
depends on PCI
range LINUX_CLI_LEVEL 6
default 5
config ETHERNET_IRQ_LEVEL
int "Ethernet interrupt priority"
depends on SMC91X || SMC911X || SMSC911X
range LINUX_CLI_LEVEL 6
default 6
config EXT_SERIAL_IRQ_LEVEL
int "External serial port interrupt priority"
depends on SERIAL_8250
range LINUX_CLI_LEVEL 6
default 6
endmenu
source "mm/Kconfig"
menu "Power management options"
source kernel/power/Kconfig
endmenu
endmenu
menu "Executable formats"
source "fs/Kconfig.binfmt"
endmenu
source "net/Kconfig"
source "drivers/Kconfig"
source "fs/Kconfig"
source "arch/mn10300/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
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