With this patch the LEON family can access the GRLIB GPTIMER using
the Timer library (TLIB).
A System Clock driver instead of BSP/clock/ck_init.c is provided
using the TLIB. The classic clock driver is split in two parts,
clock driver and timer driver. The BSPs need only to fullfill the
timer interface instead of the clock interface. Currently only
LEON3 uses it. The LEON2 Timer is not ported to TLIB.
The GPTIMER driver is implemented using the Driver Manager, so the
System Clock Driver is at this point only suitable for LEON3 when
the driver manager is initialized during BSP startup. When the DrvMgr
is not initialized during startup the standard BSP/clock dirver is
used.
LEON2 sometimes also needs to access GPTIMER when a off-chip GRLIB AMBA
systems is connected, for example AMBA-over-PCI.
Remove support for using the second timer for time stamping.
Instead the user can configure the system clock timer to a higher
base clock frequency (lower the prescaler). This change does not
affect the GR712RC or LEON4-N2X. The GR712RC does not have two
GPTIMERs and the N2X uses the Interrupt Controller for time
stamping.
Bow that the AMBA initialization code exports the AMBA device,
the frequency can be obtained without an additional AMBA PnP
scanning.
Its now possible to select which timer core will be used for
system clock timer and to control the timer prescaler that
affects all timer instances on that timer core.
The timer and interrupt controller AMBA devices are exported
to make it possible for other code to get detailed information.
For example the frequency of the timer and interrupt controller
is required by the cpucounter support.
Adds the possibility to register drivers before the IO Manager has
completed the initialization. Sometimes the BSP may want to register
a driver dynamically early in the boot process.
The Allocator Mutex should not be locked outside a tested
service call. In an SMP test or heavily multithreaded test,
this is possible since another thread could have the lock
for an extended period of time but this is not the norm
for the tests.
updates 2319.
Fix some UART register addresses and implementation bugs that
were causing malfunction of console driver on real hardware.
hello and ticker samples are tested and working fine now on mor1kx
based SoC on Atlys FPGA board.
BSP_OR1K_OR1KSIM_PERIPHCLK has been changed to 50MHz as with mor1kx/atlys
SoC; this change has no effect on the current simulators that RTEMS run
on.
Split _Watchdog_Adjust() into _Watchdog_Adjust_backward() and
_Watchdog_Adjust_forward(). Remove Watchdog_Adjust_directions,
_Watchdog_Adjust_seconds() and _Watchdog_Adjust_ticks(). This avoids to
check the same condition again.
Update #2307.
The stack pointer must be aligned on 8 byte boundary on ARM, so the size of
the exception frame must be a multiple of 8 bytes. Otherwise we might/will
get an alignment fault, when executing code in the data abort handler for
example.
Close#2318.
Signed-off-by: Daniel Krueger <daniel.krueger@systec-electronic.com>
On uni-processor configurations the change of the thread blocking state
in _Thread_queue_Requeue_priority() did no harm and was simply useless.
However on SMP configurations this resulted in invalid state changes
leading to a wrong resource ownership.
