diff options
Diffstat (limited to 'hw')
-rw-r--r-- | hw/dma/sifive_pdma.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/dma/sifive_pdma.c b/hw/dma/sifive_pdma.c index d92e27dfdc..a8ce3e6699 100644 --- a/hw/dma/sifive_pdma.c +++ b/hw/dma/sifive_pdma.c @@ -252,6 +252,15 @@ static void sifive_pdma_write(void *opaque, hwaddr offset, s->chan[ch].control = value; + /* + * If channel was not claimed before run bit is set, + * DMA won't run. + */ + if (!claimed) { + s->chan[ch].control &= ~CONTROL_RUN; + return; + } + if (value & CONTROL_RUN) { sifive_pdma_run(s, ch); } |