126 lines
4 KiB
Text
126 lines
4 KiB
Text
|
=======================================
|
||
|
|
FUJITSU FR-V LINUX KERNEL CONFIGURATION
|
||
|
|
=======================================
|
||
|
|
|
||
|
|
=====================
|
||
|
|
CONFIGURATION OPTIONS
|
||
|
|
=====================
|
||
|
|
|
||
|
|
The most important setting is in the "MMU support options" tab (the first
|
||
|
|
presented in the configuration tools available):
|
||
|
|
|
||
|
|
(*) "Kernel Type"
|
||
|
|
|
||
|
|
This options allows selection of normal, MMU-requiring linux, and uClinux
|
||
|
|
(which doesn't require an MMU and doesn't have inter-process protection).
|
||
|
|
|
||
|
|
There are a number of settings in the "Processor type and features" section of
|
||
|
|
the kernel configuration that need to be considered.
|
||
|
|
|
||
|
|
(*) "CPU"
|
||
|
|
|
||
|
|
The register and instruction sets at the core of the processor. This can
|
||
|
|
only be set to "FR40x/45x/55x" at the moment - but this permits usage of
|
||
|
|
the kernel with MB93091 CB10, CB11, CB30, CB41, CB60, CB70 and CB451
|
||
|
|
CPU boards, and with the MB93093 PDK board.
|
||
|
|
|
||
|
|
(*) "System"
|
||
|
|
|
||
|
|
This option allows a choice of basic system. This governs the peripherals
|
||
|
|
that are expected to be available.
|
||
|
|
|
||
|
|
(*) "Motherboard"
|
||
|
|
|
||
|
|
This specifies the type of motherboard being used, and the peripherals
|
||
|
|
upon it. Currently only "MB93090-MB00" can be set here.
|
||
|
|
|
||
|
|
(*) "Default cache-write mode"
|
||
|
|
|
||
|
|
This controls the initial data cache write management mode. By default
|
||
|
|
Write-Through is selected, but Write-Back (Copy-Back) can also be
|
||
|
|
selected. This can be changed dynamically once the kernel is running (see
|
||
|
|
features.txt).
|
||
|
|
|
||
|
|
There are some architecture specific configuration options in the "General
|
||
|
|
Setup" section of the kernel configuration too:
|
||
|
|
|
||
|
|
(*) "Reserve memory uncached for (PCI) DMA"
|
||
|
|
|
||
|
|
This requests that a uClinux kernel set aside some memory in an uncached
|
||
|
|
window for the use as consistent DMA memory (mainly for PCI). At least a
|
||
|
|
megabyte will be allocated in this way, possibly more. Any memory so
|
||
|
|
reserved will not be available for normal allocations.
|
||
|
|
|
||
|
|
(*) "Kernel support for ELF-FDPIC binaries"
|
||
|
|
|
||
|
|
This enables the binary-format driver for the new FDPIC ELF binaries that
|
||
|
|
this platform normally uses. These binaries are totally relocatable -
|
||
|
|
their separate sections can relocated independently, allowing them to be
|
||
|
|
shared on uClinux where possible. This should normally be enabled.
|
||
|
|
|
||
|
|
(*) "Kernel image protection"
|
||
|
|
|
||
|
|
This makes the protection register governing access to the core kernel
|
||
|
|
image prohibit access by userspace programs. This option is available on
|
||
|
|
uClinux only.
|
||
|
|
|
||
|
|
There are also a number of settings in the "Kernel Hacking" section of the
|
||
|
|
kernel configuration especially for debugging a kernel on this
|
||
|
|
architecture. See the "gdbstub.txt" file for information about those.
|
||
|
|
|
||
|
|
|
||
|
|
======================
|
||
|
|
DEFAULT CONFIGURATIONS
|
||
|
|
======================
|
||
|
|
|
||
|
|
The kernel sources include a number of example default configurations:
|
||
|
|
|
||
|
|
(*) defconfig-mb93091
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with both CPU board and
|
||
|
|
MB93090-MB00 motherboard running uClinux.
|
||
|
|
|
||
|
|
|
||
|
|
(*) defconfig-mb93091-fb
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with CPU board,
|
||
|
|
MB93090-MB00 motherboard, and DAV board running uClinux.
|
||
|
|
Includes framebuffer driver.
|
||
|
|
|
||
|
|
|
||
|
|
(*) defconfig-mb93093
|
||
|
|
|
||
|
|
Default configuration for the MB93093-PDK board running uClinux.
|
||
|
|
|
||
|
|
|
||
|
|
(*) defconfig-cb70-standalone
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with only CB70 CPU board
|
||
|
|
running uClinux. This will use the CB70's DM9000 for network access.
|
||
|
|
|
||
|
|
|
||
|
|
(*) defconfig-mmu
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with both CB451 CPU board and
|
||
|
|
MB93090-MB00 motherboard running MMU linux.
|
||
|
|
|
||
|
|
(*) defconfig-mmu-audio
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with CB451 CPU board, DAV
|
||
|
|
board, and MB93090-MB00 motherboard running MMU linux. Includes
|
||
|
|
audio driver.
|
||
|
|
|
||
|
|
(*) defconfig-mmu-fb
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with CB451 CPU board, DAV
|
||
|
|
board, and MB93090-MB00 motherboard running MMU linux. Includes
|
||
|
|
framebuffer driver.
|
||
|
|
|
||
|
|
(*) defconfig-mmu-standalone
|
||
|
|
|
||
|
|
Default configuration for the MB93091-VDK with only CB451 CPU board
|
||
|
|
running MMU linux.
|
||
|
|
|
||
|
|
|
||
|
|
|