The MER register only has two valid bits. This is now used by
the linux kernel to auto-detect endianness, and causes Linux 3.15-rc1
and later to hang when run under qemu-microblaze. Mask valid bits before
writing the register to solve the problem.
Signed-off-by: Guenter Roeck <li...@roeck-us.net>
---
hw/intc/xilinx_intc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/intc/xilinx_intc.c b/hw/intc/xilinx_intc.c
index 1b228ff..2aad605 100644
--- a/hw/intc/xilinx_intc.c
+++ b/hw/intc/xilinx_intc.c
@@ -121,6 +121,9 @@ pic_write(void *opaque, hwaddr addr,
case R_CIE:
p->regs[R_IER] &= ~value; /* Atomic clear ie. */
break;
+ case R_MER:
+ p->regs[R_MER] = value & 0x3;
+ break;
case R_ISR:
if ((p->regs[R_MER] & 2)) {
break;
--
1.7.9.7
