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authorPeter Crosthwaite <peter.crosthwaite@xilinx.com>2012-12-05 16:53:42 +1000
committerEdgar E. Iglesias <edgar.iglesias@gmail.com>2012-12-05 09:20:36 +0100
commitd4d230da08918183929c7d6cb54824b391536904 (patch)
tree20778c617d57e72f4988c12d7a7bc448108d8361
parent16c6c80ac3a772b42a87b77dfdf0fdac7c607b0e (diff)
downloadqemu-d4d230da08918183929c7d6cb54824b391536904.tar.gz
xilinx_axienet: Implement R_IS behaviour
The interrupt status register R_IS is the standard clear-on-write behaviour. This was unimplemented and defaulting to updating the register to the written value. Implemented clear-on-write. Reported-by: Jason Wu <huanyu@xilinx.com> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
-rw-r--r--hw/xilinx_axienet.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/xilinx_axienet.c b/hw/xilinx_axienet.c
index baae02bd66..f2e3bf1274 100644
--- a/hw/xilinx_axienet.c
+++ b/hw/xilinx_axienet.c
@@ -591,6 +591,10 @@ static void enet_write(void *opaque, hwaddr addr,
s->maddr[s->fmi & 3][addr & 1] = value;
break;
+ case R_IS:
+ s->regs[addr] &= ~value;
+ break;
+
case 0x8000 ... 0x83ff:
s->ext_mtable[addr - 0x8000] = value;
break;