[PATCH/RFC net-next 4/5] ravb: remove undocumented processing

[Simon Horman]

From: Kazuya Mizuguchi <kazuya.mizuguchi...@renesas.com>

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi...@renesas.com>
Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
---
 drivers/net/ethernet/renesas/ravb.h      |  5 -----
 drivers/net/ethernet/renesas/ravb_main.c | 15 ---------------
 2 files changed, 20 deletions(-)

diff --git a/drivers/net/ethernet/renesas/ravb.h 
b/drivers/net/ethernet/renesas/ravb.h
index 57eea4a77826..fcd04dbc7dde 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -197,15 +197,11 @@ enum ravb_reg {
        MAHR    = 0x05c0,
        MALR    = 0x05c8,
        TROCR   = 0x0700,       /* Undocumented? */
-       CDCR    = 0x0708,       /* Undocumented? */
-       LCCR    = 0x0710,       /* Undocumented? */
        CEFCR   = 0x0740,
        FRECR   = 0x0748,
        TSFRCR  = 0x0750,
        TLFRCR  = 0x0758,
        RFCR    = 0x0760,
-       CERCR   = 0x0768,       /* Undocumented? */
-       CEECR   = 0x0770,       /* Undocumented? */
        MAFCR   = 0x0778,
 };
 
@@ -223,7 +219,6 @@ enum CCC_BIT {
        CCC_CSEL_HPB    = 0x00010000,
        CCC_CSEL_ETH_TX = 0x00020000,
        CCC_CSEL_GMII_REF = 0x00030000,
-       CCC_BOC         = 0x00100000,   /* Undocumented? */
        CCC_LBME        = 0x01000000,
 };
 
diff --git a/drivers/net/ethernet/renesas/ravb_main.c 
b/drivers/net/ethernet/renesas/ravb_main.c
index 736ca2f76a35..88056dd912ed 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -451,12 +451,6 @@ static int ravb_dmac_init(struct net_device *ndev)
        ravb_ring_format(ndev, RAVB_BE);
        ravb_ring_format(ndev, RAVB_NC);
 
-#if defined(__LITTLE_ENDIAN)
-       ravb_modify(ndev, CCC, CCC_BOC, 0);
-#else
-       ravb_modify(ndev, CCC, CCC_BOC, CCC_BOC);
-#endif
-
        /* Set AVB RX */
        ravb_write(ndev,
                   RCR_EFFS | RCR_ENCF | RCR_ETS0 | RCR_ESF | 0x18000000, RCR);
@@ -1660,15 +1654,6 @@ static struct net_device_stats *ravb_get_stats(struct 
net_device *ndev)
 
        nstats->tx_dropped += ravb_read(ndev, TROCR);
        ravb_write(ndev, 0, TROCR);     /* (write clear) */
-       nstats->collisions += ravb_read(ndev, CDCR);
-       ravb_write(ndev, 0, CDCR);      /* (write clear) */
-       nstats->tx_carrier_errors += ravb_read(ndev, LCCR);
-       ravb_write(ndev, 0, LCCR);      /* (write clear) */
-
-       nstats->tx_carrier_errors += ravb_read(ndev, CERCR);
-       ravb_write(ndev, 0, CERCR);     /* (write clear) */
-       nstats->tx_carrier_errors += ravb_read(ndev, CEECR);
-       ravb_write(ndev, 0, CEECR);     /* (write clear) */
 
        nstats->rx_packets = stats0->rx_packets + stats1->rx_packets;
        nstats->tx_packets = stats0->tx_packets + stats1->tx_packets;
-- 
2.11.0