Remove miniIMFS. Statically initialize the root IMFS.
Add configuration options to disable individual
features of the root IMFS, e.g.
o CONFIGURE_IMFS_DISABLE_CHOWN,
o CONFIGURE_IMFS_DISABLE_FCHMOD,
o CONFIGURE_IMFS_DISABLE_LINK,
o CONFIGURE_IMFS_DISABLE_MKNOD,
o CONFIGURE_IMFS_DISABLE_MOUNT,
o CONFIGURE_IMFS_DISABLE_READLINK,
o CONFIGURE_IMFS_DISABLE_RENAME,
o CONFIGURE_IMFS_DISABLE_RMNOD,
o CONFIGURE_IMFS_DISABLE_SYMLINK,
o CONFIGURE_IMFS_DISABLE_UNMOUNT, and
o CONFIGURE_IMFS_DISABLE_UTIME.
This allows it to be wrapped by another function at link-time
and can be used to trace interrupts. If not placed in a separate
file, the function pointer address used in BSP_shared_interrupt_init
will be resolved at compile-time, and the function will not be wrappable.
The structure tms570_sci_context holds state variable
tx_chars_in_hw which holds if and how many characters
(in the optional FIFO support for some Ti SCIs) are submitted
into hardware.
When field is not writable then code breaks when RTEMS
is build for Flash area.
The problem found and analyzed by Martin Galvan from tallertechnologies.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Add AltiVec and FPU support to the Context_Control in case we use the
e6500 multilib.
Add PPC_MULTILIB_ALTIVEC and PPC_MULTILIB_FPU multilib defines. Add
non-volatile AltiVec and FPU context to Context_Control. Add save/restore of
non-volatile AltiVec and FPU to _CPU_Context_switch(). Add save/restore
of volatile AltiVec and FPU context to the exception code. Adjust data
cache optimizations for the new context and cache line size.
This allows the BSP to define an optional spin delay which is
useful for making time appear to pass at a rate closer to
wall time. On the Edison, this was used with a polled console
driver to slow polling to a reasonable rate and make time
pass reasonably close to correctly even with no clock tick
support.
This allows the support for the legacy COM1-COM4 serial ports
to be completely disabled. It is needed to prevent hangs on some
hardware. In particular, the Intel Edison where it is not present.
This allows the IDE support to be completely disabled. It is needed to
prevent hangs on some hardware. In particular, the Intel Edison where
it is not present.
This allows the VGA and keyboard console to be completely disabled.
It is useful on PCs without displays and prevents a very slow boot
time on the Intel Edison.
