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815 OR1200 debug unit: prevent deadlock when trap instruction stalls

As per mailing list post <20120925160925.5725e06f@latmask.vernier.se>,
the debug unit could deadlock with the instruction decoder if the trap
instruction is held back by a pipeline stall. This change prevents that.

The problem can be reproduced by placing a breakpoint at an unfavorable
position with instruction cache enabled. In our test, this occurred
with or1200-cbasic when placing a breakpoint at test_bss using gdb, but
this is dependent on such factors as cache parameters and compilation
result.		 yannv 4257d 04h /
814 orpsoc/or1200: Set correct PC after reset when parameter boot_adr is used

Signed-off-by: Olof Kindgren <olof@opencores.org>
Acked-by: Julius Baxter <juliusbaxter@gmail.com>		 olof 4271d 21h /
813 or1200: Set correct PC after reset when parameter boot_adr is used

Signed-off-by: Olof Kindgren <olof@opencores.org>
Acked-by: Julius Baxter <juliusbaxter@gmail.com>		 olof 4271d 21h /
812 Fix for Bug 86 - Problem with or1k_interrupt_handler_add() stekern 4336d 04h /
811 added exec command to redboot skrzyp 4375d 02h /
810 Added SPI driver skrzyp 4377d 02h /
809 OR1200: Regenerate documentation.

Forgot newline in version history table, so last entry was missing.		 julius 4387d 14h /
808 OR1200: Add DSX bit support to SR.

Updated documentation, revision is now 13.

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=85		 julius 4387d 14h /
807 ORPSoC: Commit for bug 85 - add DSX support to OR1200.

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=85

Also added software tests, and added these tests to default regression test list		 julius 4387d 14h /
806 OR1200: Fix for bug 90

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=90		 julius 4387d 15h /
805 ORPSoC: Fix for bug 90 - EPCR on range exception bug

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=90		 julius 4387d 15h /
804 OR1200: Fix for bug 91

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=91		 julius 4387d 15h /
803 ORPSoC: Fix for bug 91, l.sub not setting overflow flag correctly

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=91		 julius 4387d 15h /
802 OR1200: Fix for bug 88

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=88		 julius 4392d 20h /
801 ORPSoC: Fix bug 88

http://bugzilla.opencores.org/bugzilla4/show_bug.cgi?id=88		 julius 4392d 20h /
800 FreeRTOSV6.1.1
add or32_dma demo task for test dcache manuplation function
add simple driver of wb_dma		 filepang 4405d 11h /
799 FreeRTOSV6.1.1
add cache related function from u-boot from OpenRISC
enable I/D cache if present		 filepang 4406d 12h /
798 Added drivers for ethmac and sdcard_mass_storage_controller skrzyp 4408d 21h /
797 testsuite: kill test processes that timeout pgavin 4417d 02h /
796 Correct orpmon show_rx_buffs and show_mac_regs to use TX_BD_NUM properly. yannv 4420d 04h /

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