[arm-devs,v1,5/5] sd/sdhci:ADMA: fix interrupt

Submitted by Peter Crosthwaite on May 21, 2013, 6:53 a.m.

Details

Message ID 33f283ecd38bc94fe7a464f71cce4a42aeae1579.1369118806.git.peter.crosthwaite@xilinx.com
State New
Headers show

Commit Message

Peter Crosthwaite May 21, 2013, 6:53 a.m.
From: Peter Crosthwaite <peter.crosthwaite@xilinx.com>

The end of transfer check was occurring and potentially returning before
the interrupt flag was checked. This means the interrupt will be missed
if it occurs on the last packet. Fix by checking for the interrupt
before checking for the end of transfer.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---

 hw/sd/sdhci.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

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diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c
index 15345dc..e64899c 100644
--- a/hw/sd/sdhci.c
+++ b/hw/sd/sdhci.c
@@ -730,6 +730,15 @@  static void sdhci_do_adma(SDHCIState *s)
             break;
         }
 
+        if (dscr.attr & SDHC_ADMA_ATTR_INT) {
+            DPRINT_L1("ADMA interrupt: admasysaddr=0x%lx\n", s->admasysaddr);
+            if (s->norintstsen & SDHC_NISEN_DMA) {
+                s->norintsts |= SDHC_NIS_DMA;
+            }
+
+            sdhci_update_irq(s);
+        }
+
         /* ADMA transfer terminates if blkcnt == 0 or by END attribute */
         if (((s->trnmod & SDHC_TRNS_BLK_CNT_EN) &&
                     (s->blkcnt == 0)) || (dscr.attr & SDHC_ADMA_ATTR_END)) {
@@ -752,15 +761,6 @@  static void sdhci_do_adma(SDHCIState *s)
             return;
         }
 
-        if (dscr.attr & SDHC_ADMA_ATTR_INT) {
-            DPRINT_L1("ADMA interrupt: admasysaddr=0x%lx\n", s->admasysaddr);
-            if (s->norintstsen & SDHC_NISEN_DMA) {
-                s->norintsts |= SDHC_NIS_DMA;
-            }
-
-            sdhci_update_irq(s);
-            return;
-        }
     }
 
     /* we have unfinished business - reschedule to continue ADMA */