[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH arm-devs v1 03/15] xilinx_spips: Inhibit interrupts
From: |
Peter Crosthwaite |
Subject: |
[Qemu-devel] [PATCH arm-devs v1 03/15] xilinx_spips: Inhibit interrupts in LQSPI mode |
Date: |
Wed, 3 Apr 2013 14:27:36 +1000 |
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 <address@hidden>
---
hw/xilinx_spips.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/hw/xilinx_spips.c b/hw/xilinx_spips.c
index 261d948..a8691d5 100644
--- a/hw/xilinx_spips.c
+++ b/hw/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 {
--
1.7.0.4
- [Qemu-devel] [PATCH arm-devs v1 00/15] Xilinx SPIPS fixes round 2, Peter Crosthwaite, 2013/04/03
- [Qemu-devel] [PATCH arm-devs v1 01/15] xilinx_spips: seperate SPI and QSPI as two classes, Peter Crosthwaite, 2013/04/03
- [Qemu-devel] [PATCH arm-devs v1 02/15] xilinx_spips: Make interrupts clear on read, Peter Crosthwaite, 2013/04/03
- [Qemu-devel] [PATCH arm-devs v1 03/15] xilinx_spips: Inhibit interrupts in LQSPI mode,
Peter Crosthwaite <=
- [Qemu-devel] [PATCH arm-devs v1 04/15] xilinx_spips: Add verbose LQSPI debug output, Peter Crosthwaite, 2013/04/03
- [Qemu-devel] [PATCH arm-devs v1 05/15] xilinx_spips: lqspi: Dont trash config register, Peter Crosthwaite, 2013/04/03
- [Qemu-devel] [PATCH arm-devs v1 06/15] xilinx_spips: Fix QSPI FIFO size, Peter Crosthwaite, 2013/04/03