[PATCH 01/10] dp8393x: Mask EOL bit from descriptor addresses

[Finn Thain]

The LSB of descriptor address registers is used as an EOL flag.
It has to be masked when those registers are to be used as actual
addresses for copying memory around. But when the registers are
to be updated the EOL bit should not be masked.

Signed-off-by: Finn Thain <fth...@telegraphics.com.au>
---
 hw/net/dp8393x.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index 3d991af163..164311c055 100644
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -197,7 +197,7 @@ static uint32_t dp8393x_crba(dp8393xState *s)
 
 static uint32_t dp8393x_crda(dp8393xState *s)
 {
-    return (s->regs[SONIC_URDA] << 16) | s->regs[SONIC_CRDA];
+    return (s->regs[SONIC_URDA] << 16) | (s->regs[SONIC_CRDA] & 0xfffe);
 }
 
 static uint32_t dp8393x_rbwc(dp8393xState *s)
@@ -217,7 +217,7 @@ static uint32_t dp8393x_tsa(dp8393xState *s)
 
 static uint32_t dp8393x_ttda(dp8393xState *s)
 {
-    return (s->regs[SONIC_UTDA] << 16) | s->regs[SONIC_TTDA];
+    return (s->regs[SONIC_UTDA] << 16) | (s->regs[SONIC_TTDA] & 0xfffe);
 }
 
 static uint32_t dp8393x_wt(dp8393xState *s)
@@ -506,8 +506,8 @@ static void dp8393x_do_transmit_packets(dp8393xState *s)
                              sizeof(uint16_t) *
                              (4 + 3 * s->regs[SONIC_TFC]) * width,
                 MEMTXATTRS_UNSPECIFIED, (uint8_t *)s->data, size, 0);
-            s->regs[SONIC_CTDA] = dp8393x_get(s, width, 0) & ~0x1;
-            if (dp8393x_get(s, width, 0) & 0x1) {
+            s->regs[SONIC_CTDA] = dp8393x_get(s, width, 0);
+            if (s->regs[SONIC_CTDA] & 0x1) {
                 /* EOL detected */
                 break;
             }
-- 
2.23.0