SPI has a mode where it automatically starts based on tx fifo
occupancy. Implemented.
Signed-off-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
---
hw/xilinx_spips.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/hw/xilinx_spips.c b/hw/xilinx_spips.c
index 4f921f8..f7d942e 100644
--- a/hw/xilinx_spips.c
+++ b/hw/xilinx_spips.c
@@ -446,7 +446,8 @@ static void xilinx_spips_write(void *opaque, hwaddr addr,
}
s->regs[addr] = (s->regs[addr] & ~mask) | (value & mask);
no_reg_update:
- if (man_start_com) {
+ if ((man_start_com && s->regs[R_CONFIG] & MAN_START_EN) ||
+ (fifo8_is_empty(&s->tx_fifo) && s->regs[R_CONFIG] & MAN_START_EN))
{
xilinx_spips_flush_txfifo(s);
}
xilinx_spips_update_ixr(s);
--
1.7.0.4
