#define REG_TX_INTSTATE(idx) (0x0030 + (idx) * 4)
#define REG_RX_INTSTATE(idx) (0x0040 + (idx) * 4)
+#define REG_GLOBAL_INTSTATE(idx) (0x0050 + (idx) * 4)
#define REG_CHAN_INTSTATUS(ch, idx) (0x8010 + (ch) * 0x200 + (idx) * 4)
#define REG_CHAN_INTMASK(ch, idx) (0x8020 + (ch) * 0x200 + (idx) * 4)
static irqreturn_t admac_interrupt(int irq, void *devid)
{
struct admac_data *ad = devid;
- u32 rx_intstate, tx_intstate;
+ u32 rx_intstate, tx_intstate, global_intstate;
int i;
rx_intstate = readl_relaxed(ad->base + REG_RX_INTSTATE(ad->irq_index));
tx_intstate = readl_relaxed(ad->base + REG_TX_INTSTATE(ad->irq_index));
+ global_intstate = readl_relaxed(ad->base + REG_GLOBAL_INTSTATE(ad->irq_index));
- if (!tx_intstate && !rx_intstate)
+ if (!tx_intstate && !rx_intstate && !global_intstate)
return IRQ_NONE;
for (i = 0; i < ad->nchannels; i += 2) {
rx_intstate >>= 1;
}
+ if (global_intstate) {
+ dev_warn(ad->dev, "clearing unknown global interrupt flag: %x\n",
+ global_intstate);
+ writel_relaxed(~(u32) 0, ad->base + REG_GLOBAL_INTSTATE(ad->irq_index));
+ }
+
return IRQ_HANDLED;
}