diff options
Diffstat (limited to 'arch/xtensa/Kconfig')
| -rw-r--r-- | arch/xtensa/Kconfig | 57 |
1 files changed, 36 insertions, 21 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 0d472595467a..9e53ec481bf9 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -78,9 +78,6 @@ config TRACE_IRQFLAGS_SUPPORT config MMU def_bool n -config VARIANT_IRQ_SWITCH - def_bool n - config HAVE_XTENSA_GPIO32 def_bool n @@ -252,6 +249,23 @@ config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX If in doubt, say Y. +config MEMMAP_CACHEATTR + hex "Cache attributes for the memory address space" + depends on !MMU + default 0x22222222 + help + These cache attributes are set up for noMMU systems. Each hex digit + specifies cache attributes for the corresponding 512MB memory + region: bits 0..3 -- for addresses 0x00000000..0x1fffffff, + bits 4..7 -- for addresses 0x20000000..0x3fffffff, and so on. + + Cache attribute values are specific for the MMU type, so e.g. + for region protection MMUs: 2 is cache bypass, 4 is WB cached, + 1 is WT cached, f is illegal. For ful MMU: bit 0 makes it executable, + bit 1 makes it writable, bits 2..3 meaning is 0: cache bypass, + 1: WB cache, 2: WT cache, 3: special (c and e are illegal, f is + reserved). + config KSEG_PADDR hex "Physical address of the KSEG mapping" depends on INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX && MMU @@ -421,6 +435,10 @@ config XTENSA_PLATFORM_XTFPGA endchoice +config PLATFORM_NR_IRQS + int + default 3 if XTENSA_PLATFORM_XT2000 + default 0 config XTENSA_CPU_CLOCK int "CPU clock rate [MHz]" @@ -458,6 +476,15 @@ config BUILTIN_DTB string "DTB to build into the kernel image" depends on OF +config PARSE_BOOTPARAM + bool "Parse bootparam block" + default y + help + Parse parameters passed to the kernel from the bootloader. It may + be disabled if the kernel is known to run without the bootloader. + + If unsure, say Y. + config BLK_DEV_SIMDISK tristate "Host file-based simulated block device support" default n @@ -516,25 +543,13 @@ config PLATFORM_WANT_DEFAULT_MEM def_bool n config DEFAULT_MEM_START - hex "Physical address of the default memory area start" - depends on PLATFORM_WANT_DEFAULT_MEM - default 0x00000000 if MMU - default 0x60000000 if !MMU - help - This is the base address of the default memory area. - Default memory area has platform-specific meaning, it may be used - for e.g. early cache initialization. - - If unsure, leave the default value here. - -config DEFAULT_MEM_SIZE - hex "Maximal size of the default memory area" - depends on PLATFORM_WANT_DEFAULT_MEM - default 0x04000000 + hex + prompt "PAGE_OFFSET/PHYS_OFFSET" if !MMU && PLATFORM_WANT_DEFAULT_MEM + default 0x60000000 if PLATFORM_WANT_DEFAULT_MEM + default 0x00000000 help - This is the size of the default memory area. - Default memory area has platform-specific meaning, it may be used - for e.g. early cache initialization. + This is the base address used for both PAGE_OFFSET and PHYS_OFFSET + in noMMU configurations. If unsure, leave the default value here. |