davinci_emac: fix for running with dcache enabled

[karo-tx-uboot.git] / drivers / net / davinci_emac.h

diff --git a/drivers/net/davinci_emac.h b/drivers/net/davinci_emac.h
index a42c93aa600e13ec9185c2cc82b210feceb093e8..37c841ca84a129e909b420af693e17bb70c9ba66 100644 (file)
--- a/drivers/net/davinci_emac.h
+++ b/drivers/net/davinci_emac.h
@@ -24,8 +24,9 @@
 /* Ethernet Min/Max packet size */
 #define EMAC_MIN_ETHERNET_PKT_SIZE     60
 #define EMAC_MAX_ETHERNET_PKT_SIZE     1518
-/* 1518 + 18 = 1536 (packet aligned on 32 byte boundry) */
-#define EMAC_PKT_ALIGN                 18
+/* Buffer size (should be aligned on 32 byte and cache line) */
+#define EMAC_RXBUF_SIZE        ALIGN(ALIGN(EMAC_MAX_ETHERNET_PKT_SIZE, 32),\
+                               ARCH_DMA_MINALIGN)
 
 /* Number of RX packet buffers
  * NOTE: Only 1 buffer supported as of now