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

This patch supports the following interrupts.

- One interrupt for multiple (descriptor, error, management)
- One interrupt for emac
- Four interrupts for dma queue (best effort rx/tx, network control rx/tx)

Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi...@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0...@gmail.com>
---

This patch is based on the master branch of David Miller's next networking
tree.

v2 [Yoshihiro Kaneko]
* compile tested only
* As suggested by Sergei Shtylyov
  - add comment to CIE
  - remove comments from CIE bits
  - fix value of TIx_ALL
  - define each bits for CIE, GIE, GID, RIE0, RID0, RIE2, RID2, TIE, TID
  - reversed Christmas tree declaration ordered
  - rename _ravb_emac_interrupt() to ravb_emac_interrupt_unlocked()
  - remove unnecessary clearing of CIE
  - use a bit name corresponding to the target register, RIE0, RIE2, TIE,
    TID, RID2, GID, GIE

 drivers/net/ethernet/renesas/ravb.h      | 213 ++++++++++++++++++++++++++
 drivers/net/ethernet/renesas/ravb_main.c | 247 +++++++++++++++++++++++++++----
 drivers/net/ethernet/renesas/ravb_ptp.c  |  45 ++++--
 3 files changed, 464 insertions(+), 41 deletions(-)

diff --git a/drivers/net/ethernet/renesas/ravb.h 
b/drivers/net/ethernet/renesas/ravb.h
index 9fbe92a..71badd6d 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -157,6 +157,7 @@ enum ravb_reg {
        TIC     = 0x0378,
        TIS     = 0x037C,
        ISS     = 0x0380,
+       CIE     = 0x0384,       /* R-Car Gen3 only */
        GCCR    = 0x0390,
        GMTT    = 0x0394,
        GPTC    = 0x0398,
@@ -170,6 +171,15 @@ enum ravb_reg {
        GCT0    = 0x03B8,
        GCT1    = 0x03BC,
        GCT2    = 0x03C0,
+       GIE     = 0x03CC,
+       GID     = 0x03D0,
+       DIL     = 0x0440,
+       RIE0    = 0x0460,
+       RID0    = 0x0464,
+       RIE2    = 0x0470,
+       RID2    = 0x0474,
+       TIE     = 0x0478,
+       TID     = 0x047c,
 
        /* E-MAC registers */
        ECMR    = 0x0500,
@@ -556,6 +566,17 @@ enum ISS_BIT {
        ISS_DPS15       = 0x80000000,
 };
 
+/* CIE */
+/* R-Car Gen3 only */
+enum CIE_BIT {
+       CIE_CRIE        = 0x00000001,
+       CIE_CTIE        = 0x00000100,
+       CIE_RQFM        = 0x00010000,
+       CIE_CL0M        = 0x00020000,
+       CIE_RFWL        = 0x00040000,
+       CIE_RFFL        = 0x00080000,
+};
+
 /* GCCR */
 enum GCCR_BIT {
        GCCR_TCR        = 0x00000003,
@@ -592,6 +613,196 @@ enum GIS_BIT {
        GIS_PTMF        = 0x00000004,
 };
 
+/* GIE */
+enum GIE_BIT {
+       GIE_PTCS        = 0x00000001,
+       GIE_PTOS        = 0x00000002,
+       GIE_PTMS0       = 0x00000004,
+       GIE_PTMS1       = 0x00000008,
+       GIE_PTMS2       = 0x00000010,
+       GIE_PTMS3       = 0x00000020,
+       GIE_PTMS4       = 0x00000040,
+       GIE_PTMS5       = 0x00000080,
+       GIE_PTMS6       = 0x00000100,
+       GIE_PTMS7       = 0x00000200,
+       GIE_ATCS0       = 0x00010000,
+       GIE_ATCS1       = 0x00020000,
+       GIE_ATCS2       = 0x00040000,
+       GIE_ATCS3       = 0x00080000,
+       GIE_ATCS4       = 0x00100000,
+       GIE_ATCS5       = 0x00200000,
+       GIE_ATCS6       = 0x00400000,
+       GIE_ATCS7       = 0x00800000,
+       GIE_ATCS8       = 0x01000000,
+       GIE_ATCS9       = 0x02000000,
+       GIE_ATCS10      = 0x04000000,
+       GIE_ATCS11      = 0x08000000,
+       GIE_ATCS12      = 0x10000000,
+       GIE_ATCS13      = 0x20000000,
+       GIE_ATCS14      = 0x40000000,
+       GIE_ATCS15      = 0x80000000,
+       GIE_ALL         = 0xffff03ff,
+};
+
+/* GID */
+enum GID_BIT {
+       GID_PTCD        = 0x00000001,
+       GID_PTOD        = 0x00000002,
+       GID_PTMD0       = 0x00000004,
+       GID_PTMD1       = 0x00000008,
+       GID_PTMD2       = 0x00000010,
+       GID_PTMD3       = 0x00000020,
+       GID_PTMD4       = 0x00000040,
+       GID_PTMD5       = 0x00000080,
+       GID_PTMD6       = 0x00000100,
+       GID_PTMD7       = 0x00000200,
+       GID_ATCD0       = 0x00010000,
+       GID_ATCD1       = 0x00020000,
+       GID_ATCD2       = 0x00040000,
+       GID_ATCD3       = 0x00080000,
+       GID_ATCD4       = 0x00100000,
+       GID_ATCD5       = 0x00200000,
+       GID_ATCD6       = 0x00400000,
+       GID_ATCD7       = 0x00800000,
+       GID_ATCD8       = 0x01000000,
+       GID_ATCD9       = 0x02000000,
+       GID_ATCD10      = 0x04000000,
+       GID_ATCD11      = 0x08000000,
+       GID_ATCD12      = 0x10000000,
+       GID_ATCD13      = 0x20000000,
+       GID_ATCD14      = 0x40000000,
+       GID_ATCD15      = 0x80000000,
+       GID_ALL         = 0xffff03ff,
+};
+
+/* RIE0 */
+enum RIE0_BIT {
+       RIE0_FRS0       = 0x00000001,
+       RIE0_FRS1       = 0x00000002,
+       RIE0_FRS2       = 0x00000004,
+       RIE0_FRS3       = 0x00000008,
+       RIE0_FRS4       = 0x00000010,
+       RIE0_FRS5       = 0x00000020,
+       RIE0_FRS6       = 0x00000040,
+       RIE0_FRS7       = 0x00000080,
+       RIE0_FRS8       = 0x00000100,
+       RIE0_FRS9       = 0x00000200,
+       RIE0_FRS10      = 0x00000400,
+       RIE0_FRS11      = 0x00000800,
+       RIE0_FRS12      = 0x00001000,
+       RIE0_FRS13      = 0x00002000,
+       RIE0_FRS14      = 0x00004000,
+       RIE0_FRS15      = 0x00008000,
+       RIE0_FRS16      = 0x00010000,
+       RIE0_FRS17      = 0x00020000,
+       RIE0_ALL        = 0x0003ffff,
+};
+
+/* RID0 */
+enum RID0_BIT {
+       RID0_FRD0       = 0x00000001,
+       RID0_FRD1       = 0x00000002,
+       RID0_FRD2       = 0x00000004,
+       RID0_FRD3       = 0x00000008,
+       RID0_FRD4       = 0x00000010,
+       RID0_FRD5       = 0x00000020,
+       RID0_FRD6       = 0x00000040,
+       RID0_FRD7       = 0x00000080,
+       RID0_FRD8       = 0x00000100,
+       RID0_FRD9       = 0x00000200,
+       RID0_FRD10      = 0x00000400,
+       RID0_FRD11      = 0x00000800,
+       RID0_FRD12      = 0x00001000,
+       RID0_FRD13      = 0x00002000,
+       RID0_FRD14      = 0x00004000,
+       RID0_FRD15      = 0x00008000,
+       RID0_FRD16      = 0x00010000,
+       RID0_FRD17      = 0x00020000,
+       RID0_ALL        = 0x0003ffff,
+};
+
+/* RIE2 */
+enum RIE2_BIT {
+       RIE2_QFS0       = 0x00000001,
+       RIE2_QFS1       = 0x00000002,
+       RIE2_QFS2       = 0x00000004,
+       RIE2_QFS3       = 0x00000008,
+       RIE2_QFS4       = 0x00000010,
+       RIE2_QFS5       = 0x00000020,
+       RIE2_QFS6       = 0x00000040,
+       RIE2_QFS7       = 0x00000080,
+       RIE2_QFS8       = 0x00000100,
+       RIE2_QFS9       = 0x00000200,
+       RIE2_QFS10      = 0x00000400,
+       RIE2_QFS11      = 0x00000800,
+       RIE2_QFS12      = 0x00001000,
+       RIE2_QFS13      = 0x00002000,
+       RIE2_QFS14      = 0x00004000,
+       RIE2_QFS15      = 0x00008000,
+       RIE2_QFS16      = 0x00010000,
+       RIE2_QFS17      = 0x00020000,
+       RIE2_RFFS       = 0x80000000,
+       RIE2_ALL        = 0x8003ffff,
+};
+
+/* RID2 */
+enum RID2_BIT {
+       RID2_QFD0       = 0x00000001,
+       RID2_QFD1       = 0x00000002,
+       RID2_QFD2       = 0x00000004,
+       RID2_QFD3       = 0x00000008,
+       RID2_QFD4       = 0x00000010,
+       RID2_QFD5       = 0x00000020,
+       RID2_QFD6       = 0x00000040,
+       RID2_QFD7       = 0x00000080,
+       RID2_QFD8       = 0x00000100,
+       RID2_QFD9       = 0x00000200,
+       RID2_QFD10      = 0x00000400,
+       RID2_QFD11      = 0x00000800,
+       RID2_QFD12      = 0x00001000,
+       RID2_QFD13      = 0x00002000,
+       RID2_QFD14      = 0x00004000,
+       RID2_QFD15      = 0x00008000,
+       RID2_QFD16      = 0x00010000,
+       RID2_QFD17      = 0x00020000,
+       RID2_RFFD       = 0x80000000,
+       RID2_ALL        = 0x8003ffff,
+};
+
+/* TIE */
+enum TIE_BIT {
+       TIE_FTS0        = 0x00000001,
+       TIE_FTS1        = 0x00000002,
+       TIE_FTS2        = 0x00000004,
+       TIE_FTS3        = 0x00000008,
+       TIE_TFUS        = 0x00000100,
+       TIE_TFWS        = 0x00000200,
+       TIE_MFUS        = 0x00000400,
+       TIE_MFWS        = 0x00000800,
+       TIE_TDPS0       = 0x00010000,
+       TIE_TDPS1       = 0x00020000,
+       TIE_TDPS2       = 0x00040000,
+       TIE_TDPS3       = 0x00080000,
+       TIE_ALL         = 0x000f0f0f,
+};
+
+/* TID */
+enum TID_BIT {
+       TID_FTD0        = 0x00000001,
+       TID_FTD1        = 0x00000002,
+       TID_FTD2        = 0x00000004,
+       TID_FTD3        = 0x00000008,
+       TID_TFUD        = 0x00000100,
+       TID_TFWD        = 0x00000200,
+       TID_MFUD        = 0x00000400,
+       TID_MFWD        = 0x00000800,
+       TID_TDPD0       = 0x00010000,
+       TID_TDPD1       = 0x00020000,
+       TID_TDPD2       = 0x00040000,
+       TID_TDPD3       = 0x00080000,
+       TID_ALL         = 0x000f0f0f,
+};
+
 /* ECMR */
 enum ECMR_BIT {
        ECMR_PRM        = 0x00000001,
@@ -817,6 +1028,8 @@ struct ravb_private {
        int duplex;
        int emac_irq;
        enum ravb_chip_id chip_id;
+       int rx_irqs[NUM_RX_QUEUE];
+       int tx_irqs[NUM_TX_QUEUE];
 
        unsigned no_avb_link:1;
        unsigned avb_link_active_low:1;
diff --git a/drivers/net/ethernet/renesas/ravb_main.c 
b/drivers/net/ethernet/renesas/ravb_main.c
index 0e1ebb3..a101ca1 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -42,6 +42,16 @@
                 NETIF_MSG_RX_ERR | \
                 NETIF_MSG_TX_ERR)
 
+static const char *ravb_rx_irqs[NUM_RX_QUEUE] = {
+       "ch0", /* RAVB_BE */
+       "ch1", /* RAVB_NC */
+};
+
+static const char *ravb_tx_irqs[NUM_TX_QUEUE] = {
+       "ch18", /* RAVB_BE */
+       "ch19", /* RAVB_NC */
+};
+
 int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value)
 {
        int i;
@@ -375,6 +385,7 @@ static void ravb_emac_init(struct net_device *ndev)
 /* Device init function for Ethernet AVB */
 static int ravb_dmac_init(struct net_device *ndev)
 {
+       struct ravb_private *priv = netdev_priv(ndev);
        int error;
 
        /* Set CONFIG mode */
@@ -411,14 +422,27 @@ static int ravb_dmac_init(struct net_device *ndev)
        ravb_write(ndev, TCCR_TFEN, TCCR);
 
        /* Interrupt init: */
-       /* Frame receive */
-       ravb_write(ndev, RIC0_FRE0 | RIC0_FRE1, RIC0);
-       /* Disable FIFO full warning */
-       ravb_write(ndev, 0, RIC1);
-       /* Receive FIFO full error, descriptor empty */
-       ravb_write(ndev, RIC2_QFE0 | RIC2_QFE1 | RIC2_RFFE, RIC2);
-       /* Frame transmitted, timestamp FIFO updated */
-       ravb_write(ndev, TIC_FTE0 | TIC_FTE1 | TIC_TFUE, TIC);
+       if (priv->chip_id == RCAR_GEN2) {
+               /* Frame receive */
+               ravb_write(ndev, RIC0_FRE0 | RIC0_FRE1, RIC0);
+               /* Disable FIFO full warning */
+               ravb_write(ndev, 0, RIC1);
+               /* Receive FIFO full error, descriptor empty */
+               ravb_write(ndev, RIC2_QFE0 | RIC2_QFE1 | RIC2_RFFE, RIC2);
+               /* Frame transmitted, timestamp FIFO updated */
+               ravb_write(ndev, TIC_FTE0 | TIC_FTE1 | TIC_TFUE, TIC);
+       } else {
+               /* Clear DIL.DPLx */
+               ravb_write(ndev, 0, DIL);
+               /* Set queue specific interrupt */
+               ravb_write(ndev, CIE_CRIE | CIE_CTIE | CIE_CL0M, CIE);
+               /* Frame receive */
+               ravb_write(ndev, RIE0_FRS0 | RIE0_FRS1, RIE0);
+               /* Receive FIFO full error, descriptor empty */
+               ravb_write(ndev, RIE2_QFS0 | RIE2_QFS1 | RIE2_RFFS, RIE2);
+               /* Frame transmitted, timestamp FIFO updated */
+               ravb_write(ndev, TIE_FTS0 | TIE_FTS1 | TIE_TFUS, TIE);
+       }
 
        /* Setting the control will start the AVB-DMAC process. */
        ravb_write(ndev, (ravb_read(ndev, CCC) & ~CCC_OPC) | CCC_OPC_OPERATION,
@@ -654,7 +678,7 @@ static int ravb_stop_dma(struct net_device *ndev)
 }
 
 /* E-MAC interrupt handler */
-static void ravb_emac_interrupt(struct net_device *ndev)
+static void ravb_emac_interrupt_unlocked(struct net_device *ndev)
 {
        struct ravb_private *priv = netdev_priv(ndev);
        u32 ecsr, psr;
@@ -680,6 +704,18 @@ static void ravb_emac_interrupt(struct net_device *ndev)
        }
 }
 
+static irqreturn_t ravb_emac_interrupt(int irq, void *dev_id)
+{
+       struct net_device *ndev = dev_id;
+       struct ravb_private *priv = netdev_priv(ndev);
+
+       spin_lock(&priv->lock);
+       ravb_emac_interrupt_unlocked(ndev);
+       mmiowb();
+       spin_unlock(&priv->lock);
+       return IRQ_HANDLED;
+}
+
 /* Error interrupt handler */
 static void ravb_error_interrupt(struct net_device *ndev)
 {
@@ -690,7 +726,10 @@ static void ravb_error_interrupt(struct net_device *ndev)
        ravb_write(ndev, ~EIS_QFS, EIS);
        if (eis & EIS_QFS) {
                ris2 = ravb_read(ndev, RIS2);
-               ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF), RIS2);
+               if (priv->chip_id == RCAR_GEN2)
+                       ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF), RIS2);
+               else
+                       ravb_write(ndev, RID2_QFD0 | RID2_RFFD, RID2);
 
                /* Receive Descriptor Empty int */
                if (ris2 & RIS2_QFF0)
@@ -758,16 +797,43 @@ static irqreturn_t ravb_interrupt(int irq, void *dev_id)
 
        /* E-MAC status summary */
        if (iss & ISS_MS) {
-               ravb_emac_interrupt(ndev);
+               ravb_emac_interrupt_unlocked(ndev);
+               result = IRQ_HANDLED;
+       }
+
+       /* Error status summary */
+       if (iss & ISS_ES) {
+               ravb_error_interrupt(ndev);
                result = IRQ_HANDLED;
        }
 
+       if (iss & ISS_CGIS)
+               result = ravb_ptp_interrupt(ndev);
+
+       mmiowb();
+       spin_unlock(&priv->lock);
+       return result;
+}
+
+/* Descriptor IRQ/Error/Management interrupt handler */
+static irqreturn_t ravb_multi_interrupt(int irq, void *dev_id)
+{
+       struct net_device *ndev = dev_id;
+       struct ravb_private *priv = netdev_priv(ndev);
+       irqreturn_t result = IRQ_NONE;
+       u32 iss;
+
+       spin_lock(&priv->lock);
+       /* Get interrupt status */
+       iss = ravb_read(ndev, ISS);
+
        /* Error status summary */
        if (iss & ISS_ES) {
                ravb_error_interrupt(ndev);
                result = IRQ_HANDLED;
        }
 
+       /* Management */
        if (iss & ISS_CGIS)
                result = ravb_ptp_interrupt(ndev);
 
@@ -776,6 +842,55 @@ static irqreturn_t ravb_interrupt(int irq, void *dev_id)
        return result;
 }
 
+static irqreturn_t ravb_dmaq_interrupt(int irq, void *dev_id, int ravb_queue)
+{
+       struct net_device *ndev = dev_id;
+       struct ravb_private *priv = netdev_priv(ndev);
+       irqreturn_t result = IRQ_NONE;
+       u32 ris0, ric0, tis, tic;
+       int q = ravb_queue;
+
+       spin_lock(&priv->lock);
+
+       ris0 = ravb_read(ndev, RIS0);
+       ric0 = ravb_read(ndev, RIC0);
+       tis  = ravb_read(ndev, TIS);
+       tic  = ravb_read(ndev, TIC);
+
+       /* Timestamp updated */
+       if (tis & TIS_TFUF) {
+               ravb_write(ndev, TID_TFUD, TID);
+               ravb_get_tx_tstamp(ndev);
+               result = IRQ_HANDLED;
+       }
+
+       /* Best effort queue RX/TX */
+       if (((ris0 & ric0) & BIT(q)) ||
+           ((tis  & tic)  & BIT(q))) {
+               if (napi_schedule_prep(&priv->napi[q])) {
+                       /* Mask RX and TX interrupts */
+                       ravb_write(ndev, BIT(q), RID0);
+                       ravb_write(ndev, BIT(q), TID);
+                       __napi_schedule(&priv->napi[q]);
+               }
+               result = IRQ_HANDLED;
+       }
+
+       mmiowb();
+       spin_unlock(&priv->lock);
+       return result;
+}
+
+static irqreturn_t ravb_be_interrupt(int irq, void *dev_id)
+{
+       return ravb_dmaq_interrupt(irq, dev_id, RAVB_BE);
+}
+
+static irqreturn_t ravb_nc_interrupt(int irq, void *dev_id)
+{
+       return ravb_dmaq_interrupt(irq, dev_id, RAVB_NC);
+}
+
 static int ravb_poll(struct napi_struct *napi, int budget)
 {
        struct net_device *ndev = napi->dev;
@@ -815,8 +930,13 @@ static int ravb_poll(struct napi_struct *napi, int budget)
 
        /* Re-enable RX/TX interrupts */
        spin_lock_irqsave(&priv->lock, flags);
-       ravb_write(ndev, ravb_read(ndev, RIC0) | mask, RIC0);
-       ravb_write(ndev, ravb_read(ndev, TIC)  | mask,  TIC);
+       if (priv->chip_id == RCAR_GEN2) {
+               ravb_write(ndev, ravb_read(ndev, RIC0) | mask, RIC0);
+               ravb_write(ndev, ravb_read(ndev, TIC)  | mask, TIC);
+       } else {
+               ravb_write(ndev, mask, RIE0);
+               ravb_write(ndev, mask, TIE);
+       }
        mmiowb();
        spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -1223,23 +1343,68 @@ static const struct ethtool_ops ravb_ethtool_ops = {
 static int ravb_open(struct net_device *ndev)
 {
        struct ravb_private *priv = netdev_priv(ndev);
-       int error;
+       struct platform_device *pdev = priv->pdev;
+       struct device *dev = &pdev->dev;
+       int error, i;
+       char *name;
 
        napi_enable(&priv->napi[RAVB_BE]);
        napi_enable(&priv->napi[RAVB_NC]);
 
-       error = request_irq(ndev->irq, ravb_interrupt, IRQF_SHARED, ndev->name,
-                           ndev);
-       if (error) {
-               netdev_err(ndev, "cannot request IRQ\n");
-               goto out_napi_off;
-       }
-
-       if (priv->chip_id == RCAR_GEN3) {
-               error = request_irq(priv->emac_irq, ravb_interrupt,
-                                   IRQF_SHARED, ndev->name, ndev);
+       if (priv->chip_id == RCAR_GEN2) {
+               error = request_irq(ndev->irq, ravb_interrupt, IRQF_SHARED,
+                                   ndev->name, ndev);
                if (error) {
                        netdev_err(ndev, "cannot request IRQ\n");
+                       goto out_napi_off;
+               }
+       } else {
+               name = devm_kasprintf(dev, GFP_KERNEL, "%s:ch22:multi",
+                                     ndev->name);
+               error = request_irq(ndev->irq, ravb_multi_interrupt,
+                                   IRQF_SHARED, name, ndev);
+               if (error) {
+                       netdev_err(ndev, "cannot request IRQ %s\n", name);
+                       goto out_napi_off;
+               }
+               name = devm_kasprintf(dev, GFP_KERNEL, "%s:ch24:emac",
+                                     ndev->name);
+               error = request_irq(priv->emac_irq, ravb_emac_interrupt,
+                                   IRQF_SHARED, name, ndev);
+               if (error) {
+                       netdev_err(ndev, "cannot request IRQ %s\n", name);
+                       goto out_free_irq;
+               }
+               name = devm_kasprintf(dev, GFP_KERNEL, "%s:ch0:rx_be",
+                                     ndev->name);
+               error = request_irq(priv->rx_irqs[RAVB_BE], ravb_be_interrupt,
+                                   IRQF_SHARED, name, ndev);
+               if (error) {
+                       netdev_err(ndev, "cannot request IRQ %s\n", name);
+                       goto out_free_irq;
+               }
+               name = devm_kasprintf(dev, GFP_KERNEL, "%s:ch18:tx_be",
+                                     ndev->name);
+               error = request_irq(priv->tx_irqs[RAVB_BE], ravb_be_interrupt,
+                                   IRQF_SHARED, name, ndev);
+               if (error) {
+                       netdev_err(ndev, "cannot request IRQ %s\n", name);
+                       goto out_free_irq;
+               }
+               name = devm_kasprintf(dev, GFP_KERNEL, "%s:ch1:rx_nc",
+                                     ndev->name);
+               error = request_irq(priv->rx_irqs[RAVB_NC], ravb_nc_interrupt,
+                                   IRQF_SHARED, name, ndev);
+               if (error) {
+                       netdev_err(ndev, "cannot request IRQ %s\n", name);
+                       goto out_free_irq;
+               }
+               name = devm_kasprintf(dev, GFP_KERNEL, "%s:ch19:tx_nc",
+                                     ndev->name);
+               error = request_irq(priv->tx_irqs[RAVB_NC], ravb_nc_interrupt,
+                                   IRQF_SHARED, name, ndev);
+               if (error) {
+                       netdev_err(ndev, "cannot request IRQ %s\n", name);
                        goto out_free_irq;
                }
        }
@@ -1272,6 +1437,10 @@ out_free_irq2:
                free_irq(priv->emac_irq, ndev);
 out_free_irq:
        free_irq(ndev->irq, ndev);
+       for (i = 0; i < NUM_RX_QUEUE; i++)
+               free_irq(priv->rx_irqs[i], ndev);
+       for (i = 0; i < NUM_TX_QUEUE; i++)
+               free_irq(priv->tx_irqs[i], ndev);
 out_napi_off:
        napi_disable(&priv->napi[RAVB_NC]);
        napi_disable(&priv->napi[RAVB_BE]);
@@ -1494,10 +1663,15 @@ static int ravb_close(struct net_device *ndev)
        netif_tx_stop_all_queues(ndev);
 
        /* Disable interrupts by clearing the interrupt masks. */
-       ravb_write(ndev, 0, RIC0);
-       ravb_write(ndev, 0, RIC2);
-       ravb_write(ndev, 0, TIC);
-
+       if (priv->chip_id == RCAR_GEN2) {
+               ravb_write(ndev, 0, RIC0);
+               ravb_write(ndev, 0, RIC2);
+               ravb_write(ndev, 0, TIC);
+       } else {
+               ravb_write(ndev, RID0_ALL, RID0);
+               ravb_write(ndev, RID2_ALL, RID2);
+               ravb_write(ndev, TID_ALL, TID);
+       }
        /* Stop PTP Clock driver */
        if (priv->chip_id == RCAR_GEN2)
                ravb_ptp_stop(ndev);
@@ -1728,6 +1902,7 @@ static int ravb_probe(struct platform_device *pdev)
        struct net_device *ndev;
        int error, irq, q;
        struct resource *res;
+       int i;
 
        if (!np) {
                dev_err(&pdev->dev,
@@ -1798,6 +1973,22 @@ static int ravb_probe(struct platform_device *pdev)
                        goto out_release;
                }
                priv->emac_irq = irq;
+               for (i = 0; i < NUM_RX_QUEUE; i++) {
+                       irq = platform_get_irq_byname(pdev, ravb_rx_irqs[i]);
+                       if (irq < 0) {
+                               error = irq;
+                               goto out_release;
+                       }
+                       priv->rx_irqs[i] = irq;
+               }
+               for (i = 0; i < NUM_TX_QUEUE; i++) {
+                       irq = platform_get_irq_byname(pdev, ravb_tx_irqs[i]);
+                       if (irq < 0) {
+                               error = irq;
+                               goto out_release;
+                       }
+                       priv->tx_irqs[i] = irq;
+               }
        }
 
        priv->chip_id = chip_id;
diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c 
b/drivers/net/ethernet/renesas/ravb_ptp.c
index 7a8ce92..870d7b7 100644
--- a/drivers/net/ethernet/renesas/ravb_ptp.c
+++ b/drivers/net/ethernet/renesas/ravb_ptp.c
@@ -196,11 +196,18 @@ static int ravb_ptp_extts(struct ptp_clock_info *ptp,
 
        spin_lock_irqsave(&priv->lock, flags);
        gic = ravb_read(ndev, GIC);
-       if (on)
-               gic |= GIC_PTCE;
-       else
-               gic &= ~GIC_PTCE;
-       ravb_write(ndev, gic, GIC);
+       if (priv->chip_id == RCAR_GEN2) {
+               if (on)
+                       gic |= GIC_PTCE;
+               else
+                       gic &= ~GIC_PTCE;
+               ravb_write(ndev, gic, GIC);
+       } else {
+               if (on)
+                       ravb_write(ndev, GIE_PTCS, GIE);
+               else
+                       ravb_write(ndev, GID_PTCD, GID);
+       }
        mmiowb();
        spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -216,7 +223,7 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp,
        struct ravb_ptp_perout *perout;
        unsigned long flags;
        int error = 0;
-       u32 gic;
+       u32 gic = 0;
 
        if (req->index)
                return -EINVAL;
@@ -248,9 +255,13 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp,
                error = ravb_ptp_update_compare(priv, (u32)start_ns);
                if (!error) {
                        /* Unmask interrupt */
-                       gic = ravb_read(ndev, GIC);
-                       gic |= GIC_PTME;
-                       ravb_write(ndev, gic, GIC);
+                       if (priv->chip_id == RCAR_GEN2) {
+                               gic = ravb_read(ndev, GIC);
+                               gic |= GIC_PTME;
+                               ravb_write(ndev, gic, GIC);
+                       } else {
+                               ravb_write(ndev, GIE_PTMS0, GIE);
+                       }
                }
        } else  {
                spin_lock_irqsave(&priv->lock, flags);
@@ -259,9 +270,13 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp,
                perout->period = 0;
 
                /* Mask interrupt */
-               gic = ravb_read(ndev, GIC);
-               gic &= ~GIC_PTME;
-               ravb_write(ndev, gic, GIC);
+               if (priv->chip_id == RCAR_GEN2) {
+                       gic = ravb_read(ndev, GIC);
+                       gic &= ~GIC_PTME;
+                       ravb_write(ndev, gic, GIC);
+               } else {
+                       ravb_write(ndev, GID_PTMD0, GID);
+               }
        }
        mmiowb();
        spin_unlock_irqrestore(&priv->lock, flags);
@@ -352,7 +367,11 @@ void ravb_ptp_stop(struct net_device *ndev)
 {
        struct ravb_private *priv = netdev_priv(ndev);
 
-       ravb_write(ndev, 0, GIC);
+       if (priv->chip_id == RCAR_GEN2)
+               ravb_write(ndev, 0, GIC);
+       else
+               ravb_write(ndev, GID_ALL, GID);
+
        ravb_write(ndev, 0, GIS);
 
        ptp_clock_unregister(priv->ptp.clock);
-- 
1.9.1

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