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Update #2271.
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Closes #2329
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or1ksim BSP was initially named after or1ksim simulator, and it was
intented to only run there. But now it can also run on QEMU, jor1k and
real FPGA boards without modifications. It makes more sense to give
it a new generic name like generic_or1k.
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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.
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Implement uart_read_polled which is needed for any application that
reads input from users. It works fine with pppd, capture, and all
termios tests.
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Fix build error introduced in f535fe5311978af53635c2da8e5cb10ef9d78802.
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This change starts with removing the effectively empty file
timerdrv.h. The prototypes for benchmark_timer_XXX() were in
btimer.h which was not universally used. Thus every use of
timerdrv.h had to be changed to btimer.h. Then the prototypes
for benchmark_timer_read() had to be adjusted to return
benchmark_timer_t rather than int or uint32_t.
I took this opportunity to also correct the file headers to
separate the copyright from the file description comments which
is needed to ensure the copyright isn't propagated into Doxygen
output.
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Implement new cache functions for or1k and create new bspstart function
for or1ksim to initialize instruction and data caches. Also, sim.cfg
is modified to enable/confiure cache units.
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Modify README to provide instruction on how to run or1ksim BSP on
latest or1ksim emulator built from github repo and add commands
to run or1ksim BSP on QEMU.
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This patch avoids unexpected behavior when initializing tick timer registers.
Initializing these registers fires unexpected exceptions and interrupts even
though RTEMS has not enabled interrupts yet. So, a little long interval added
to allow RTEMS to finish the remaining initialization work before running the
application. The tick timer interval is adjusted to reflect an accurate
timing for RTEMS applications.
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This patch allocate a space in the stack to account for red-zone
that gcc may utilize for the use of leaf functions. Care must be
taken to handle this red-zone from many places:
1- Upon creation of a new thread stack.
2- Once an interrupt entred.
Also moving the enable-thread-dispach() and increment ISR level before
checking if dispatch needed was required.
The previous modifications solved the printf bug which disabled ticker
to output strings after context switches that arise from Thread_Delay_ended.
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Apparently, at some point automake output changed and these were
not updated.
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OpenRISC/or1ksim BSP: The new sim.cfg file configures or1ksim emulator with HW
capabilities that the current RTEMS/or1ksim BSP supports.
README: HOWTO run the or1ksim simulator.
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This BSP is intended to run on or1ksim (the main OpenRISC emulator).
Fixed version according to Joel comments from the mailing list.
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