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authorAlistair Francis <alistair.francis@xilinx.com>2014-01-13 13:35:26 +1000
committerEdgar E. Iglesias <edgar.iglesias@xilinx.com>2014-01-14 11:08:36 +1000
commit73c694565c6144e0c4e15041b5250a04a25107c3 (patch)
treea8ea3af63195bd6e0f183d6bc3f7e15393d35935 /target-microblaze/cpu.h
parent83e6813a93e38976391b8c382c3375e3e188df3e (diff)
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Microblaze: Convert Microblaze-pic handling to GPIOs
This patch uses inbound GPIO lines (IRQ and FIR) for interrupts instead of using the old pic_cpu method, which doesn't correspond to real hardware. This creates the CPU's inbound IRQ and FIR GPIO lines and updates the Microblaze boards to use this new method. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Suggested-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reveiwed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Diffstat (limited to 'target-microblaze/cpu.h')
-rw-r--r--target-microblaze/cpu.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h
index e1415f043c..1df014e92e 100644
--- a/target-microblaze/cpu.h
+++ b/target-microblaze/cpu.h
@@ -48,6 +48,10 @@ typedef struct CPUMBState CPUMBState;
/* MicroBlaze-specific interrupt pending bits. */
#define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3
+/* Meanings of the MBCPU object's two inbound GPIO lines */
+#define MB_CPU_IRQ 0
+#define MB_CPU_FIR 1
+
/* Register aliases. R0 - R15 */
#define R_SP 1
#define SR_PC 0