sh_eth: add support for RMIIMODE register

This register is prsent on the r8a7790 SoC.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index a753928bab9c683d54036f92350e6db466eaa7b9..87af49f1414d16e67aa2c8c498272b4e48be28a6 100644 (file)
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -189,6 +189,7 @@ static const u16 sh_eth_offset_fast_rcar[SH_ETH_MAX_REGISTER_OFFSET] = {
        [RMCR]          = 0x0258,
        [TFUCR]         = 0x0264,
        [RFOCR]         = 0x0268,
+       [RMIIMODE]      = 0x026c,
        [FCFTR]         = 0x0270,
        [TRIMD]         = 0x027c,
 };
@@ -1124,6 +1125,9 @@ static int sh_eth_dev_init(struct net_device *ndev, bool start)
        if (ret)
                goto out;
 
+       if (mdp->cd->rmiimode)
+               sh_eth_write(ndev, 0x1, RMIIMODE);
+
        /* Descriptor format */
        sh_eth_ring_format(ndev);
        if (mdp->cd->rpadir)

diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index 99995bf38c403a3eb641a9d1f79fe5fc54aa6b8b..da93f5cf41f81d049af75b6fc8ec26ce2789ea02 100644 (file)
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -60,6 +60,7 @@ enum {
        EDOCR,
        TFUCR,
        RFOCR,
+       RMIIMODE,
        FCFTR,
        RPADIR,
        TRIMD,
@@ -482,6 +483,7 @@ struct sh_eth_cpu_data {
        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 */
+       unsigned rmiimode:1;    /* EtherC has RMIIMODE register */
 };
 
 struct sh_eth_private {