diff options
Diffstat (limited to 'arch/mn10300/Kconfig')
| -rw-r--r-- | arch/mn10300/Kconfig | 286 |
1 files changed, 218 insertions, 68 deletions
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 7c2a2f7f8dc..41ba38513c8 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -1,16 +1,20 @@ -# -# For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. -# - -mainmenu "Linux Kernel Configuration" - config MN10300 def_bool y select HAVE_OPROFILE -config AM33 - def_bool y +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 @@ -37,7 +41,7 @@ config GENERIC_CALIBRATE_DELAY def_bool y config GENERIC_CMOS_UPDATE - def_bool y + def_bool n config GENERIC_FIND_NEXT_BIT def_bool y @@ -45,6 +49,27 @@ config GENERIC_FIND_NEXT_BIT config GENERIC_HWEIGHT def_bool y +config GENERIC_TIME + def_bool y + +config GENERIC_CLOCKEVENTS + def_bool y + +config GENERIC_CLOCKEVENTS_BUILD + def_bool y + depends on GENERIC_CLOCKEVENTS + +config GENERIC_CLOCKEVENTS_BROADCAST + bool + +config CEVT_MN10300 + def_bool y + depends on GENERIC_CLOCKEVENTS + +config CSRC_MN10300 + def_bool y + depends on GENERIC_TIME + config GENERIC_BUG def_bool y @@ -61,18 +86,12 @@ config GENERIC_HARDIRQS config HOTPLUG_CPU def_bool n -config HZ - int - default 1000 - -mainmenu "Matsushita MN10300/AM33 Kernel Configuration" - source "init/Kconfig" source "kernel/Kconfig.freezer" -menu "Matsushita MN10300 system setup" +menu "Panasonic MN10300 system setup" choice prompt "Unit type" @@ -87,6 +106,10 @@ config MN10300_UNIT_ASB2303 config MN10300_UNIT_ASB2305 bool "ASB2305" +config MN10300_UNIT_ASB2364 + bool "ASB2364" + select SMSC911X_ARCH_HOOKS if SMSC911X + endchoice choice @@ -99,57 +122,51 @@ choice 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 -choice - prompt "Processor core support" - default MN10300_CPU_AM33V2 +config MN10300_HAS_ATOMIC_OPS_UNIT + def_bool n help - This option specifies the processor core for which the kernel will be - compiled. It affects the instruction set used. - -config MN10300_CPU_AM33V2 - bool "AM33v2" - -endchoice + 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 + depends on MN10300_PROC_MN103E010 || MN10300_PROC_MN2WS0050 -choice - prompt "CPU Caching mode" - default MN10300_CACHE_WBACK +config LAZY_SAVE_FPU + bool "Save FPU state lazily" + default y + depends on FPU && !SMP help - This option determines the caching mode for the kernel. + 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. - Write-Back caching mode involves the all reads and writes causing - the affected cacheline to be read into the cache first before being - operated upon. Memory is not then updated by a write until the cache - is filled and a cacheline needs to be displaced from the cache to - make room. Only at that point is it written back. + 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. - Write-Through caching only fetches cachelines from memory on a - read. Writes always get written directly to memory. If the affected - cacheline is also in cache, it will be updated too. +source "arch/mn10300/mm/Kconfig.cache" - The final option is to turn of caching entirely. - -config MN10300_CACHE_WBACK - bool "Write-Back" - -config MN10300_CACHE_WTHRU - bool "Write-Through" - -config MN10300_CACHE_DISABLED - bool "Disabled" - -endchoice +config MN10300_TLB_USE_PIDR + def_bool y menu "Memory layout options" @@ -170,24 +187,55 @@ config KERNEL_TEXT_ADDRESS config KERNEL_ZIMAGE_BASE_ADDRESS hex "Base address of compressed vmlinux image" - default "0x90700000" + 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 PREEMPT - bool "Preemptible Kernel" - help - This option reduces the latency of the kernel when reacting to - real-time or interactive events by allowing a low priority process to - be preempted even if it is in kernel mode executing a system call. - This allows applications to run more reliably even when the system is - under load. +config SMP + bool "Symmetric multi-processing support" + default y + 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. - Say Y here if you are building a kernel for a desktop, embedded - or real-time system. Say N if you are unsure. + 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/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" + +config USE_GENERIC_SMP_HELPERS + bool + depends on SMP + default y + +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 @@ -209,12 +257,15 @@ config MN10300_USING_JTAG 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 + 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. @@ -306,14 +357,23 @@ config MN10300_TTYSM1 choice prompt "Select the timer to supply the clock for SIF1" - default MN10300_TTYSM0_TIMER9 + 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 @@ -328,17 +388,107 @@ config MN10300_TTYSM2 choice prompt "Select the timer to supply the clock for SIF2" - default MN10300_TTYSM0_TIMER10 + 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 + 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 GDBSTUB_IRQ_LEVEL + int "GDBSTUB interrupt priority" + depends on GDBSTUB + 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 GDBSTUB 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 |