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| author | Peter Crosthwaite <peter.crosthwaite@xilinx.com> | 2013-06-03 17:17:41 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2013-06-03 17:17:41 +0100 |
| commit | 3ea728d0c87011845666caedc582eaa9629797db (patch) | |
| tree | 4695dbd7e397536779b3372ef363189ee497dcc0 /hw/ssi/xilinx_spips.c | |
| parent | 87920b44a1e04a45bf74ee0a88a2dfa51c65acdb (diff) | |
| download | focaccia-qemu-3ea728d0c87011845666caedc582eaa9629797db.tar.gz focaccia-qemu-3ea728d0c87011845666caedc582eaa9629797db.zip | |
xilinx_spips: Inhibit interrupts in LQSPI mode
The real hardware does not produce interrupts in LQSPI mode. Inhibit generation of interrupts when the LQ_MODE bit is set. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Message-id: dff794a06872009ea7e5733ce6adcff94d18bbd0.1369117359.git.peter.crosthwaite@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/ssi/xilinx_spips.c')
| -rw-r--r-- | hw/ssi/xilinx_spips.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/hw/ssi/xilinx_spips.c b/hw/ssi/xilinx_spips.c index 261d948ba7..a8691d51c4 100644 --- a/hw/ssi/xilinx_spips.c +++ b/hw/ssi/xilinx_spips.c @@ -204,6 +204,9 @@ static void xilinx_spips_update_cs_lines(XilinxSPIPS *s) static void xilinx_spips_update_ixr(XilinxSPIPS *s) { + if (s->regs[R_LQSPI_CFG] & LQSPI_CFG_LQ_MODE) { + return; + } /* These are set/cleared as they occur */ s->regs[R_INTR_STATUS] &= (IXR_TX_FIFO_UNDERFLOW | IXR_RX_FIFO_OVERFLOW | IXR_TX_FIFO_MODE_FAIL); @@ -256,7 +259,9 @@ static void xilinx_spips_flush_txfifo(XilinxSPIPS *s) for (i = 0; i < num_effective_busses(s); ++i) { if (!i || s->snoop_state == SNOOP_STRIPING) { if (fifo8_is_empty(&s->tx_fifo)) { - s->regs[R_INTR_STATUS] |= IXR_TX_FIFO_UNDERFLOW; + if (!(s->regs[R_LQSPI_CFG] & LQSPI_CFG_LQ_MODE)) { + s->regs[R_INTR_STATUS] |= IXR_TX_FIFO_UNDERFLOW; + } xilinx_spips_update_ixr(s); return; } else { |