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path: root/drivers/net/ethernet/renesas
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Diffstat (limited to 'drivers/net/ethernet/renesas')
-rw-r--r--drivers/net/ethernet/renesas/sh_eth.c6
-rw-r--r--drivers/net/ethernet/renesas/sh_eth.h1
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 4b4c586d2c4f..7732f11f14ad 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -656,6 +656,7 @@ static struct sh_eth_cpu_data r8a7740_data = {
.no_ade = 1,
.tsu = 1,
.select_mii = 1,
+ .shift_rd0 = 1,
};
static struct sh_eth_cpu_data sh7619_data = {
@@ -1259,7 +1260,6 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
if (!(desc_status & RDFEND))
ndev->stats.rx_length_errors++;
-#if defined(CONFIG_ARCH_R8A7740)
/*
* In case of almost all GETHER/ETHERs, the Receive Frame State
* (RFS) bits in the Receive Descriptor 0 are from bit 9 to
@@ -1267,8 +1267,8 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
* bits are from bit 25 to bit 16. So, the driver needs right
* shifting by 16.
*/
- desc_status >>= 16;
-#endif
+ if (mdp->cd->shift_rd0)
+ desc_status >>= 16;
if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 |
RD_RFS5 | RD_RFS6 | RD_RFS10)) {
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 7540dc35fdb8..a78fb0c424f8 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -481,6 +481,7 @@ struct sh_eth_cpu_data {
unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */
unsigned hw_crc:1; /* E-DMAC have CSMR */
unsigned select_mii:1; /* EtherC have RMII_MII (MII select register) */
+ unsigned shift_rd0:1; /* shift Rx descriptor word 0 right by 16 */
};
struct sh_eth_private {