diff options
| -rw-r--r-- | c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 96348ae758..6d2cefb2b6 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c +++ b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c @@ -2209,6 +2209,7 @@ int grspw_dma_start(void *c) struct grspw_dma_priv *dma = c; struct grspw_dma_regs *dregs = dma->regs; unsigned int ctrl; + IRQFLAGS_TYPE irqflags; if (dma->started) return 0; @@ -2264,7 +2265,10 @@ int grspw_dma_start(void *c) ctrl |= GRSPW_DMACTRL_RI; if (dma->cfg.tx_irq_en_cnt != 0) ctrl |= GRSPW_DMACTRL_TI; + SPIN_LOCK_IRQ(&dma->core->devlock, irqflags); + ctrl |= REG_READ(&dma->regs->ctrl) & GRSPW_DMACTRL_EN; REG_WRITE(&dregs->ctrl, ctrl); + SPIN_UNLOCK_IRQ(&dma->core->devlock, irqflags); dma->started = 1; /* open up other DMA interfaces */ |