summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/renesas/sh_eth.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/renesas/sh_eth.c')
-rw-r--r--drivers/net/ethernet/renesas/sh_eth.c1975
1 files changed, 1975 insertions, 0 deletions
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
new file mode 100644
index 000000000000..9b230740c6ab
--- /dev/null
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -0,0 +1,1975 @@
+/*
+ * SuperH Ethernet device driver
+ *
+ * Copyright (C) 2006-2008 Nobuhiro Iwamatsu
+ * Copyright (C) 2008-2009 Renesas Solutions Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mdio-bitbang.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/cache.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/ethtool.h>
+#include <linux/sh_eth.h>
+
+#include "sh_eth.h"
+
+#define SH_ETH_DEF_MSG_ENABLE \
+ (NETIF_MSG_LINK | \
+ NETIF_MSG_TIMER | \
+ NETIF_MSG_RX_ERR| \
+ NETIF_MSG_TX_ERR)
+
+/* There is CPU dependent code */
+#if defined(CONFIG_CPU_SUBTYPE_SH7724)
+#define SH_ETH_RESET_DEFAULT 1
+static void sh_eth_set_duplex(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ if (mdp->duplex) /* Full */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
+ else /* Half */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
+}
+
+static void sh_eth_set_rate(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ switch (mdp->speed) {
+ case 10: /* 10BASE */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_RTM, ECMR);
+ break;
+ case 100:/* 100BASE */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_RTM, ECMR);
+ break;
+ default:
+ break;
+ }
+}
+
+/* SH7724 */
+static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+ .set_duplex = sh_eth_set_duplex,
+ .set_rate = sh_eth_set_rate,
+
+ .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD,
+ .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP,
+ .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x01ff009f,
+
+ .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
+ .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE |
+ EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI,
+ .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE,
+
+ .apr = 1,
+ .mpr = 1,
+ .tpauser = 1,
+ .hw_swap = 1,
+ .rpadir = 1,
+ .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */
+};
+#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
+#define SH_ETH_HAS_BOTH_MODULES 1
+#define SH_ETH_HAS_TSU 1
+static void sh_eth_set_duplex(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ if (mdp->duplex) /* Full */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
+ else /* Half */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
+}
+
+static void sh_eth_set_rate(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ switch (mdp->speed) {
+ case 10: /* 10BASE */
+ sh_eth_write(ndev, 0, RTRATE);
+ break;
+ case 100:/* 100BASE */
+ sh_eth_write(ndev, 1, RTRATE);
+ break;
+ default:
+ break;
+ }
+}
+
+/* SH7757 */
+static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+ .set_duplex = sh_eth_set_duplex,
+ .set_rate = sh_eth_set_rate,
+
+ .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+ .rmcr_value = 0x00000001,
+
+ .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
+ .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE |
+ EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI,
+ .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE,
+
+ .apr = 1,
+ .mpr = 1,
+ .tpauser = 1,
+ .hw_swap = 1,
+ .no_ade = 1,
+ .rpadir = 1,
+ .rpadir_value = 2 << 16,
+};
+
+#define SH_GIGA_ETH_BASE 0xfee00000
+#define GIGA_MALR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8)
+#define GIGA_MAHR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0)
+static void sh_eth_chip_reset_giga(struct net_device *ndev)
+{
+ int i;
+ unsigned long mahr[2], malr[2];
+
+ /* save MAHR and MALR */
+ for (i = 0; i < 2; i++) {
+ malr[i] = ioread32((void *)GIGA_MALR(i));
+ mahr[i] = ioread32((void *)GIGA_MAHR(i));
+ }
+
+ /* reset device */
+ iowrite32(ARSTR_ARSTR, (void *)(SH_GIGA_ETH_BASE + 0x1800));
+ mdelay(1);
+
+ /* restore MAHR and MALR */
+ for (i = 0; i < 2; i++) {
+ iowrite32(malr[i], (void *)GIGA_MALR(i));
+ iowrite32(mahr[i], (void *)GIGA_MAHR(i));
+ }
+}
+
+static int sh_eth_is_gether(struct sh_eth_private *mdp);
+static void sh_eth_reset(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int cnt = 100;
+
+ if (sh_eth_is_gether(mdp)) {
+ sh_eth_write(ndev, 0x03, EDSR);
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER,
+ EDMR);
+ while (cnt > 0) {
+ if (!(sh_eth_read(ndev, EDMR) & 0x3))
+ break;
+ mdelay(1);
+ cnt--;
+ }
+ if (cnt < 0)
+ printk(KERN_ERR "Device reset fail\n");
+
+ /* Table Init */
+ sh_eth_write(ndev, 0x0, TDLAR);
+ sh_eth_write(ndev, 0x0, TDFAR);
+ sh_eth_write(ndev, 0x0, TDFXR);
+ sh_eth_write(ndev, 0x0, TDFFR);
+ sh_eth_write(ndev, 0x0, RDLAR);
+ sh_eth_write(ndev, 0x0, RDFAR);
+ sh_eth_write(ndev, 0x0, RDFXR);
+ sh_eth_write(ndev, 0x0, RDFFR);
+ } else {
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER,
+ EDMR);
+ mdelay(3);
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER,
+ EDMR);
+ }
+}
+
+static void sh_eth_set_duplex_giga(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ if (mdp->duplex) /* Full */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
+ else /* Half */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
+}
+
+static void sh_eth_set_rate_giga(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ switch (mdp->speed) {
+ case 10: /* 10BASE */
+ sh_eth_write(ndev, 0x00000000, GECMR);
+ break;
+ case 100:/* 100BASE */
+ sh_eth_write(ndev, 0x00000010, GECMR);
+ break;
+ case 1000: /* 1000BASE */
+ sh_eth_write(ndev, 0x00000020, GECMR);
+ break;
+ default:
+ break;
+ }
+}
+
+/* SH7757(GETHERC) */
+static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = {
+ .chip_reset = sh_eth_chip_reset_giga,
+ .set_duplex = sh_eth_set_duplex_giga,
+ .set_rate = sh_eth_set_rate_giga,
+
+ .ecsr_value = ECSR_ICD | ECSR_MPD,
+ .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+ .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+
+ .tx_check = EESR_TC1 | EESR_FTC,
+ .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
+ EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
+ EESR_ECI,
+ .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
+ EESR_TFE,
+ .fdr_value = 0x0000072f,
+ .rmcr_value = 0x00000001,
+
+ .apr = 1,
+ .mpr = 1,
+ .tpauser = 1,
+ .bculr = 1,
+ .hw_swap = 1,
+ .rpadir = 1,
+ .rpadir_value = 2 << 16,
+ .no_trimd = 1,
+ .no_ade = 1,
+};
+
+static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
+{
+ if (sh_eth_is_gether(mdp))
+ return &sh_eth_my_cpu_data_giga;
+ else
+ return &sh_eth_my_cpu_data;
+}
+
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
+#define SH_ETH_HAS_TSU 1
+static void sh_eth_chip_reset(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ /* reset device */
+ sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR);
+ mdelay(1);
+}
+
+static void sh_eth_reset(struct net_device *ndev)
+{
+ int cnt = 100;
+
+ sh_eth_write(ndev, EDSR_ENALL, EDSR);
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR);
+ while (cnt > 0) {
+ if (!(sh_eth_read(ndev, EDMR) & 0x3))
+ break;
+ mdelay(1);
+ cnt--;
+ }
+ if (cnt == 0)
+ printk(KERN_ERR "Device reset fail\n");
+
+ /* Table Init */
+ sh_eth_write(ndev, 0x0, TDLAR);
+ sh_eth_write(ndev, 0x0, TDFAR);
+ sh_eth_write(ndev, 0x0, TDFXR);
+ sh_eth_write(ndev, 0x0, TDFFR);
+ sh_eth_write(ndev, 0x0, RDLAR);
+ sh_eth_write(ndev, 0x0, RDFAR);
+ sh_eth_write(ndev, 0x0, RDFXR);
+ sh_eth_write(ndev, 0x0, RDFFR);
+}
+
+static void sh_eth_set_duplex(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ if (mdp->duplex) /* Full */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR);
+ else /* Half */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR);
+}
+
+static void sh_eth_set_rate(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ switch (mdp->speed) {
+ case 10: /* 10BASE */
+ sh_eth_write(ndev, GECMR_10, GECMR);
+ break;
+ case 100:/* 100BASE */
+ sh_eth_write(ndev, GECMR_100, GECMR);
+ break;
+ case 1000: /* 1000BASE */
+ sh_eth_write(ndev, GECMR_1000, GECMR);
+ break;
+ default:
+ break;
+ }
+}
+
+/* sh7763 */
+static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+ .chip_reset = sh_eth_chip_reset,
+ .set_duplex = sh_eth_set_duplex,
+ .set_rate = sh_eth_set_rate,
+
+ .ecsr_value = ECSR_ICD | ECSR_MPD,
+ .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP,
+ .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+
+ .tx_check = EESR_TC1 | EESR_FTC,
+ .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \
+ EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \
+ EESR_ECI,
+ .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \
+ EESR_TFE,
+
+ .apr = 1,
+ .mpr = 1,
+ .tpauser = 1,
+ .bculr = 1,
+ .hw_swap = 1,
+ .no_trimd = 1,
+ .no_ade = 1,
+ .tsu = 1,
+};
+
+#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
+#define SH_ETH_RESET_DEFAULT 1
+static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+ .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+
+ .apr = 1,
+ .mpr = 1,
+ .tpauser = 1,
+ .hw_swap = 1,
+};
+#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
+#define SH_ETH_RESET_DEFAULT 1
+#define SH_ETH_HAS_TSU 1
+static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
+ .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
+ .tsu = 1,
+};
+#endif
+
+static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
+{
+ if (!cd->ecsr_value)
+ cd->ecsr_value = DEFAULT_ECSR_INIT;
+
+ if (!cd->ecsipr_value)
+ cd->ecsipr_value = DEFAULT_ECSIPR_INIT;
+
+ if (!cd->fcftr_value)
+ cd->fcftr_value = DEFAULT_FIFO_F_D_RFF | \
+ DEFAULT_FIFO_F_D_RFD;
+
+ if (!cd->fdr_value)
+ cd->fdr_value = DEFAULT_FDR_INIT;
+
+ if (!cd->rmcr_value)
+ cd->rmcr_value = DEFAULT_RMCR_VALUE;
+
+ if (!cd->tx_check)
+ cd->tx_check = DEFAULT_TX_CHECK;
+
+ if (!cd->eesr_err_check)
+ cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK;
+
+ if (!cd->tx_error_check)
+ cd->tx_error_check = DEFAULT_TX_ERROR_CHECK;
+}
+
+#if defined(SH_ETH_RESET_DEFAULT)
+/* Chip Reset */
+static void sh_eth_reset(struct net_device *ndev)
+{
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, EDMR);
+ mdelay(3);
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, EDMR);
+}
+#endif
+
+#if defined(CONFIG_CPU_SH4)
+static void sh_eth_set_receive_align(struct sk_buff *skb)
+{
+ int reserve;
+
+ reserve = SH4_SKB_RX_ALIGN - ((u32)skb->data & (SH4_SKB_RX_ALIGN - 1));
+ if (reserve)
+ skb_reserve(skb, reserve);
+}
+#else
+static void sh_eth_set_receive_align(struct sk_buff *skb)
+{
+ skb_reserve(skb, SH2_SH3_SKB_RX_ALIGN);
+}
+#endif
+
+
+/* CPU <-> EDMAC endian convert */
+static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x)
+{
+ switch (mdp->edmac_endian) {
+ case EDMAC_LITTLE_ENDIAN:
+ return cpu_to_le32(x);
+ case EDMAC_BIG_ENDIAN:
+ return cpu_to_be32(x);
+ }
+ return x;
+}
+
+static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x)
+{
+ switch (mdp->edmac_endian) {
+ case EDMAC_LITTLE_ENDIAN:
+ return le32_to_cpu(x);
+ case EDMAC_BIG_ENDIAN:
+ return be32_to_cpu(x);
+ }
+ return x;
+}
+
+/*
+ * Program the hardware MAC address from dev->dev_addr.
+ */
+static void update_mac_address(struct net_device *ndev)
+{
+ sh_eth_write(ndev,
+ (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) |
+ (ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]), MAHR);
+ sh_eth_write(ndev,
+ (ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]), MALR);
+}
+
+/*
+ * Get MAC address from SuperH MAC address register
+ *
+ * SuperH's Ethernet device doesn't have 'ROM' to MAC address.
+ * This driver get MAC address that use by bootloader(U-boot or sh-ipl+g).
+ * When you want use this device, you must set MAC address in bootloader.
+ *
+ */
+static void read_mac_address(struct net_device *ndev, unsigned char *mac)
+{
+ if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) {
+ memcpy(ndev->dev_addr, mac, 6);
+ } else {
+ ndev->dev_addr[0] = (sh_eth_read(ndev, MAHR) >> 24);
+ ndev->dev_addr[1] = (sh_eth_read(ndev, MAHR) >> 16) & 0xFF;
+ ndev->dev_addr[2] = (sh_eth_read(ndev, MAHR) >> 8) & 0xFF;
+ ndev->dev_addr[3] = (sh_eth_read(ndev, MAHR) & 0xFF);
+ ndev->dev_addr[4] = (sh_eth_read(ndev, MALR) >> 8) & 0xFF;
+ ndev->dev_addr[5] = (sh_eth_read(ndev, MALR) & 0xFF);
+ }
+}
+
+static int sh_eth_is_gether(struct sh_eth_private *mdp)
+{
+ if (mdp->reg_offset == sh_eth_offset_gigabit)
+ return 1;
+ else
+ return 0;
+}
+
+static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp)
+{
+ if (sh_eth_is_gether(mdp))
+ return EDTRR_TRNS_GETHER;
+ else
+ return EDTRR_TRNS_ETHER;
+}
+
+struct bb_info {
+ void (*set_gate)(void *addr);
+ struct mdiobb_ctrl ctrl;
+ void *addr;
+ u32 mmd_msk;/* MMD */
+ u32 mdo_msk;
+ u32 mdi_msk;
+ u32 mdc_msk;
+};
+
+/* PHY bit set */
+static void bb_set(void *addr, u32 msk)
+{
+ iowrite32(ioread32(addr) | msk, addr);
+}
+
+/* PHY bit clear */
+static void bb_clr(void *addr, u32 msk)
+{
+ iowrite32((ioread32(addr) & ~msk), addr);
+}
+
+/* PHY bit read */
+static int bb_read(void *addr, u32 msk)
+{
+ return (ioread32(addr) & msk) != 0;
+}
+
+/* Data I/O pin control */
+static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit)
+{
+ struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
+ if (bitbang->set_gate)
+ bitbang->set_gate(bitbang->addr);
+
+ if (bit)
+ bb_set(bitbang->addr, bitbang->mmd_msk);
+ else
+ bb_clr(bitbang->addr, bitbang->mmd_msk);
+}
+
+/* Set bit data*/
+static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit)
+{
+ struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
+ if (bitbang->set_gate)
+ bitbang->set_gate(bitbang->addr);
+
+ if (bit)
+ bb_set(bitbang->addr, bitbang->mdo_msk);
+ else
+ bb_clr(bitbang->addr, bitbang->mdo_msk);
+}
+
+/* Get bit data*/
+static int sh_get_mdio(struct mdiobb_ctrl *ctrl)
+{
+ struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
+ if (bitbang->set_gate)
+ bitbang->set_gate(bitbang->addr);
+
+ return bb_read(bitbang->addr, bitbang->mdi_msk);
+}
+
+/* MDC pin control */
+static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit)
+{
+ struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl);
+
+ if (bitbang->set_gate)
+ bitbang->set_gate(bitbang->addr);
+
+ if (bit)
+ bb_set(bitbang->addr, bitbang->mdc_msk);
+ else
+ bb_clr(bitbang->addr, bitbang->mdc_msk);
+}
+
+/* mdio bus control struct */
+static struct mdiobb_ops bb_ops = {
+ .owner = THIS_MODULE,
+ .set_mdc = sh_mdc_ctrl,
+ .set_mdio_dir = sh_mmd_ctrl,
+ .set_mdio_data = sh_set_mdio,
+ .get_mdio_data = sh_get_mdio,
+};
+
+/* free skb and descriptor buffer */
+static void sh_eth_ring_free(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int i;
+
+ /* Free Rx skb ringbuffer */
+ if (mdp->rx_skbuff) {
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ if (mdp->rx_skbuff[i])
+ dev_kfree_skb(mdp->rx_skbuff[i]);
+ }
+ }
+ kfree(mdp->rx_skbuff);
+
+ /* Free Tx skb ringbuffer */
+ if (mdp->tx_skbuff) {
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ if (mdp->tx_skbuff[i])
+ dev_kfree_skb(mdp->tx_skbuff[i]);
+ }
+ }
+ kfree(mdp->tx_skbuff);
+}
+
+/* format skb and descriptor buffer */
+static void sh_eth_ring_format(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int i;
+ struct sk_buff *skb;
+ struct sh_eth_rxdesc *rxdesc = NULL;
+ struct sh_eth_txdesc *txdesc = NULL;
+ int rx_ringsize = sizeof(*rxdesc) * RX_RING_SIZE;
+ int tx_ringsize = sizeof(*txdesc) * TX_RING_SIZE;
+
+ mdp->cur_rx = mdp->cur_tx = 0;
+ mdp->dirty_rx = mdp->dirty_tx = 0;
+
+ memset(mdp->rx_ring, 0, rx_ringsize);
+
+ /* build Rx ring buffer */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ /* skb */
+ mdp->rx_skbuff[i] = NULL;
+ skb = dev_alloc_skb(mdp->rx_buf_sz);
+ mdp->rx_skbuff[i] = skb;
+ if (skb == NULL)
+ break;
+ dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz,
+ DMA_FROM_DEVICE);
+ skb->dev = ndev; /* Mark as being used by this device. */
+ sh_eth_set_receive_align(skb);
+
+ /* RX descriptor */
+ rxdesc = &mdp->rx_ring[i];
+ rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4));
+ rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP);
+
+ /* The size of the buffer is 16 byte boundary. */
+ rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
+ /* Rx descriptor address set */
+ if (i == 0) {
+ sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR);
+ if (sh_eth_is_gether(mdp))
+ sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR);
+ }
+ }
+
+ mdp->dirty_rx = (u32) (i - RX_RING_SIZE);
+
+ /* Mark the last entry as wrapping the ring. */
+ rxdesc->status |= cpu_to_edmac(mdp, RD_RDEL);
+
+ memset(mdp->tx_ring, 0, tx_ringsize);
+
+ /* build Tx ring buffer */
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ mdp->tx_skbuff[i] = NULL;
+ txdesc = &mdp->tx_ring[i];
+ txdesc->status = cpu_to_edmac(mdp, TD_TFP);
+ txdesc->buffer_length = 0;
+ if (i == 0) {
+ /* Tx descriptor address set */
+ sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR);
+ if (sh_eth_is_gether(mdp))
+ sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR);
+ }
+ }
+
+ txdesc->status |= cpu_to_edmac(mdp, TD_TDLE);
+}
+
+/* Get skb and descriptor buffer */
+static int sh_eth_ring_init(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int rx_ringsize, tx_ringsize, ret = 0;
+
+ /*
+ * +26 gets the maximum ethernet encapsulation, +7 & ~7 because the
+ * card needs room to do 8 byte alignment, +2 so we can reserve
+ * the first 2 bytes, and +16 gets room for the status word from the
+ * card.
+ */
+ mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ :
+ (((ndev->mtu + 26 + 7) & ~7) + 2 + 16));
+ if (mdp->cd->rpadir)
+ mdp->rx_buf_sz += NET_IP_ALIGN;
+
+ /* Allocate RX and TX skb rings */
+ mdp->rx_skbuff = kmalloc(sizeof(*mdp->rx_skbuff) * RX_RING_SIZE,
+ GFP_KERNEL);
+ if (!mdp->rx_skbuff) {
+ dev_err(&ndev->dev, "Cannot allocate Rx skb\n");
+ ret = -ENOMEM;
+ return ret;
+ }
+
+ mdp->tx_skbuff = kmalloc(sizeof(*mdp->tx_skbuff) * TX_RING_SIZE,
+ GFP_KERNEL);
+ if (!mdp->tx_skbuff) {
+ dev_err(&ndev->dev, "Cannot allocate Tx skb\n");
+ ret = -ENOMEM;
+ goto skb_ring_free;
+ }
+
+ /* Allocate all Rx descriptors. */
+ rx_ringsize = sizeof(struct sh_eth_rxdesc) * RX_RING_SIZE;
+ mdp->rx_ring = dma_alloc_coherent(NULL, rx_ringsize, &mdp->rx_desc_dma,
+ GFP_KERNEL);
+
+ if (!mdp->rx_ring) {
+ dev_err(&ndev->dev, "Cannot allocate Rx Ring (size %d bytes)\n",
+ rx_ringsize);
+ ret = -ENOMEM;
+ goto desc_ring_free;
+ }
+
+ mdp->dirty_rx = 0;
+
+ /* Allocate all Tx descriptors. */
+ tx_ringsize = sizeof(struct sh_eth_txdesc) * TX_RING_SIZE;
+ mdp->tx_ring = dma_alloc_coherent(NULL, tx_ringsize, &mdp->tx_desc_dma,
+ GFP_KERNEL);
+ if (!mdp->tx_ring) {
+ dev_err(&ndev->dev, "Cannot allocate Tx Ring (size %d bytes)\n",
+ tx_ringsize);
+ ret = -ENOMEM;
+ goto desc_ring_free;
+ }
+ return ret;
+
+desc_ring_free:
+ /* free DMA buffer */
+ dma_free_coherent(NULL, rx_ringsize, mdp->rx_ring, mdp->rx_desc_dma);
+
+skb_ring_free:
+ /* Free Rx and Tx skb ring buffer */
+ sh_eth_ring_free(ndev);
+
+ return ret;
+}
+
+static int sh_eth_dev_init(struct net_device *ndev)
+{
+ int ret = 0;
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ u_int32_t rx_int_var, tx_int_var;
+ u32 val;
+
+ /* Soft Reset */
+ sh_eth_reset(ndev);
+
+ /* Descriptor format */
+ sh_eth_ring_format(ndev);
+ if (mdp->cd->rpadir)
+ sh_eth_write(ndev, mdp->cd->rpadir_value, RPADIR);
+
+ /* all sh_eth int mask */
+ sh_eth_write(ndev, 0, EESIPR);
+
+#if defined(__LITTLE_ENDIAN__)
+ if (mdp->cd->hw_swap)
+ sh_eth_write(ndev, EDMR_EL, EDMR);
+ else
+#endif
+ sh_eth_write(ndev, 0, EDMR);
+
+ /* FIFO size set */
+ sh_eth_write(ndev, mdp->cd->fdr_value, FDR);
+ sh_eth_write(ndev, 0, TFTR);
+
+ /* Frame recv control */
+ sh_eth_write(ndev, mdp->cd->rmcr_value, RMCR);
+
+ rx_int_var = mdp->rx_int_var = DESC_I_RINT8 | DESC_I_RINT5;
+ tx_int_var = mdp->tx_int_var = DESC_I_TINT2;
+ sh_eth_write(ndev, rx_int_var | tx_int_var, TRSCER);
+
+ if (mdp->cd->bculr)
+ sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */
+
+ sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR);
+
+ if (!mdp->cd->no_trimd)
+ sh_eth_write(ndev, 0, TRIMD);
+
+ /* Recv frame limit set register */
+ sh_eth_write(ndev, RFLR_VALUE, RFLR);
+
+ sh_eth_write(ndev, sh_eth_read(ndev, EESR), EESR);
+ sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR);
+
+ /* PAUSE Prohibition */
+ val = (sh_eth_read(ndev, ECMR) & ECMR_DM) |
+ ECMR_ZPF | (mdp->duplex ? ECMR_DM : 0) | ECMR_TE | ECMR_RE;
+
+ sh_eth_write(ndev, val, ECMR);
+
+ if (mdp->cd->set_rate)
+ mdp->cd->set_rate(ndev);
+
+ /* E-MAC Status Register clear */
+ sh_eth_write(ndev, mdp->cd->ecsr_value, ECSR);
+
+ /* E-MAC Interrupt Enable register */
+ sh_eth_write(ndev, mdp->cd->ecsipr_value, ECSIPR);
+
+ /* Set MAC address */
+ update_mac_address(ndev);
+
+ /* mask reset */
+ if (mdp->cd->apr)
+ sh_eth_write(ndev, APR_AP, APR);
+ if (mdp->cd->mpr)
+ sh_eth_write(ndev, MPR_MP, MPR);
+ if (mdp->cd->tpauser)
+ sh_eth_write(ndev, TPAUSER_UNLIMITED, TPAUSER);
+
+ /* Setting the Rx mode will start the Rx process. */
+ sh_eth_write(ndev, EDRRR_R, EDRRR);
+
+ netif_start_queue(ndev);
+
+ return ret;
+}
+
+/* free Tx skb function */
+static int sh_eth_txfree(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct sh_eth_txdesc *txdesc;
+ int freeNum = 0;
+ int entry = 0;
+
+ for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
+ entry = mdp->dirty_tx % TX_RING_SIZE;
+ txdesc = &mdp->tx_ring[entry];
+ if (txdesc->status & cpu_to_edmac(mdp, TD_TACT))
+ break;
+ /* Free the original skb. */
+ if (mdp->tx_skbuff[entry]) {
+ dma_unmap_single(&ndev->dev, txdesc->addr,
+ txdesc->buffer_length, DMA_TO_DEVICE);
+ dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
+ mdp->tx_skbuff[entry] = NULL;
+ freeNum++;
+ }
+ txdesc->status = cpu_to_edmac(mdp, TD_TFP);
+ if (entry >= TX_RING_SIZE - 1)
+ txdesc->status |= cpu_to_edmac(mdp, TD_TDLE);
+
+ mdp->stats.tx_packets++;
+ mdp->stats.tx_bytes += txdesc->buffer_length;
+ }
+ return freeNum;
+}
+
+/* Packet receive function */
+static int sh_eth_rx(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct sh_eth_rxdesc *rxdesc;
+
+ int entry = mdp->cur_rx % RX_RING_SIZE;
+ int boguscnt = (mdp->dirty_rx + RX_RING_SIZE) - mdp->cur_rx;
+ struct sk_buff *skb;
+ u16 pkt_len = 0;
+ u32 desc_status;
+
+ rxdesc = &mdp->rx_ring[entry];
+ while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) {
+ desc_status = edmac_to_cpu(mdp, rxdesc->status);
+ pkt_len = rxdesc->frame_length;
+
+ if (--boguscnt < 0)
+ break;
+
+ if (!(desc_status & RDFEND))
+ mdp->stats.rx_length_errors++;
+
+ if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 |
+ RD_RFS5 | RD_RFS6 | RD_RFS10)) {
+ mdp->stats.rx_errors++;
+ if (desc_status & RD_RFS1)
+ mdp->stats.rx_crc_errors++;
+ if (desc_status & RD_RFS2)
+ mdp->stats.rx_frame_errors++;
+ if (desc_status & RD_RFS3)
+ mdp->stats.rx_length_errors++;
+ if (desc_status & RD_RFS4)
+ mdp->stats.rx_length_errors++;
+ if (desc_status & RD_RFS6)
+ mdp->stats.rx_missed_errors++;
+ if (desc_status & RD_RFS10)
+ mdp->stats.rx_over_errors++;
+ } else {
+ if (!mdp->cd->hw_swap)
+ sh_eth_soft_swap(
+ phys_to_virt(ALIGN(rxdesc->addr, 4)),
+ pkt_len + 2);
+ skb = mdp->rx_skbuff[entry];
+ mdp->rx_skbuff[entry] = NULL;
+ if (mdp->cd->rpadir)
+ skb_reserve(skb, NET_IP_ALIGN);
+ skb_put(skb, pkt_len);
+ skb->protocol = eth_type_trans(skb, ndev);
+ netif_rx(skb);
+ mdp->stats.rx_packets++;
+ mdp->stats.rx_bytes += pkt_len;
+ }
+ rxdesc->status |= cpu_to_edmac(mdp, RD_RACT);
+ entry = (++mdp->cur_rx) % RX_RING_SIZE;
+ rxdesc = &mdp->rx_ring[entry];
+ }
+
+ /* Refill the Rx ring buffers. */
+ for (; mdp->cur_rx - mdp->dirty_rx > 0; mdp->dirty_rx++) {
+ entry = mdp->dirty_rx % RX_RING_SIZE;
+ rxdesc = &mdp->rx_ring[entry];
+ /* The size of the buffer is 16 byte boundary. */
+ rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16);
+
+ if (mdp->rx_skbuff[entry] == NULL) {
+ skb = dev_alloc_skb(mdp->rx_buf_sz);
+ mdp->rx_skbuff[entry] = skb;
+ if (skb == NULL)
+ break; /* Better luck next round. */
+ dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz,
+ DMA_FROM_DEVICE);
+ skb->dev = ndev;
+ sh_eth_set_receive_align(skb);
+
+ skb_checksum_none_assert(skb);
+ rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4));
+ }
+ if (entry >= RX_RING_SIZE - 1)
+ rxdesc->status |=
+ cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL);
+ else
+ rxdesc->status |=
+ cpu_to_edmac(mdp, RD_RACT | RD_RFP);
+ }
+
+ /* Restart Rx engine if stopped. */
+ /* If we don't need to check status, don't. -KDU */
+ if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R))
+ sh_eth_write(ndev, EDRRR_R, EDRRR);
+
+ return 0;
+}
+
+static void sh_eth_rcv_snd_disable(struct net_device *ndev)
+{
+ /* disable tx and rx */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) &
+ ~(ECMR_RE | ECMR_TE), ECMR);
+}
+
+static void sh_eth_rcv_snd_enable(struct net_device *ndev)
+{
+ /* enable tx and rx */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECMR) |
+ (ECMR_RE | ECMR_TE), ECMR);
+}
+
+/* error control function */
+static void sh_eth_error(struct net_device *ndev, int intr_status)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ u32 felic_stat;
+ u32 link_stat;
+ u32 mask;
+
+ if (intr_status & EESR_ECI) {
+ felic_stat = sh_eth_read(ndev, ECSR);
+ sh_eth_write(ndev, felic_stat, ECSR); /* clear int */
+ if (felic_stat & ECSR_ICD)
+ mdp->stats.tx_carrier_errors++;
+ if (felic_stat & ECSR_LCHNG) {
+ /* Link Changed */
+ if (mdp->cd->no_psr || mdp->no_ether_link) {
+ if (mdp->link == PHY_DOWN)
+ link_stat = 0;
+ else
+ link_stat = PHY_ST_LINK;
+ } else {
+ link_stat = (sh_eth_read(ndev, PSR));
+ if (mdp->ether_link_active_low)
+ link_stat = ~link_stat;
+ }
+ if (!(link_stat & PHY_ST_LINK))
+ sh_eth_rcv_snd_disable(ndev);
+ else {
+ /* Link Up */
+ sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) &
+ ~DMAC_M_ECI, EESIPR);
+ /*clear int */
+ sh_eth_write(ndev, sh_eth_read(ndev, ECSR),
+ ECSR);
+ sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) |
+ DMAC_M_ECI, EESIPR);
+ /* enable tx and rx */
+ sh_eth_rcv_snd_enable(ndev);
+ }
+ }
+ }
+
+ if (intr_status & EESR_TWB) {
+ /* Write buck end. unused write back interrupt */
+ if (intr_status & EESR_TABT) /* Transmit Abort int */
+ mdp->stats.tx_aborted_errors++;
+ if (netif_msg_tx_err(mdp))
+ dev_err(&ndev->dev, "Transmit Abort\n");
+ }
+
+ if (intr_status & EESR_RABT) {
+ /* Receive Abort int */
+ if (intr_status & EESR_RFRMER) {
+ /* Receive Frame Overflow int */
+ mdp->stats.rx_frame_errors++;
+ if (netif_msg_rx_err(mdp))
+ dev_err(&ndev->dev, "Receive Abort\n");
+ }
+ }
+
+ if (intr_status & EESR_TDE) {
+ /* Transmit Descriptor Empty int */
+ mdp->stats.tx_fifo_errors++;
+ if (netif_msg_tx_err(mdp))
+ dev_err(&ndev->dev, "Transmit Descriptor Empty\n");
+ }
+
+ if (intr_status & EESR_TFE) {
+ /* FIFO under flow */
+ mdp->stats.tx_fifo_errors++;
+ if (netif_msg_tx_err(mdp))
+ dev_err(&ndev->dev, "Transmit FIFO Under flow\n");
+ }
+
+ if (intr_status & EESR_RDE) {
+ /* Receive Descriptor Empty int */
+ mdp->stats.rx_over_errors++;
+
+ if (sh_eth_read(ndev, EDRRR) ^ EDRRR_R)
+ sh_eth_write(ndev, EDRRR_R, EDRRR);
+ if (netif_msg_rx_err(mdp))
+ dev_err(&ndev->dev, "Receive Descriptor Empty\n");
+ }
+
+ if (intr_status & EESR_RFE) {
+ /* Receive FIFO Overflow int */
+ mdp->stats.rx_fifo_errors++;
+ if (netif_msg_rx_err(mdp))
+ dev_err(&ndev->dev, "Receive FIFO Overflow\n");
+ }
+
+ if (!mdp->cd->no_ade && (intr_status & EESR_ADE)) {
+ /* Address Error */
+ mdp->stats.tx_fifo_errors++;
+ if (netif_msg_tx_err(mdp))
+ dev_err(&ndev->dev, "Address Error\n");
+ }
+
+ mask = EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE;
+ if (mdp->cd->no_ade)
+ mask &= ~EESR_ADE;
+ if (intr_status & mask) {
+ /* Tx error */
+ u32 edtrr = sh_eth_read(ndev, EDTRR);
+ /* dmesg */
+ dev_err(&ndev->dev, "TX error. status=%8.8x cur_tx=%8.8x ",
+ intr_status, mdp->cur_tx);
+ dev_err(&ndev->dev, "dirty_tx=%8.8x state=%8.8x EDTRR=%8.8x.\n",
+ mdp->dirty_tx, (u32) ndev->state, edtrr);
+ /* dirty buffer free */
+ sh_eth_txfree(ndev);
+
+ /* SH7712 BUG */
+ if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) {
+ /* tx dma start */
+ sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR);
+ }
+ /* wakeup */
+ netif_wake_queue(ndev);
+ }
+}
+
+static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
+{
+ struct net_device *ndev = netdev;
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct sh_eth_cpu_data *cd = mdp->cd;
+ irqreturn_t ret = IRQ_NONE;
+ u32 intr_status = 0;
+
+ spin_lock(&mdp->lock);
+
+ /* Get interrpt stat */
+ intr_status = sh_eth_read(ndev, EESR);
+ /* Clear interrupt */
+ if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF |
+ EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF |
+ cd->tx_check | cd->eesr_err_check)) {
+ sh_eth_write(ndev, intr_status, EESR);
+ ret = IRQ_HANDLED;
+ } else
+ goto other_irq;
+
+ if (intr_status & (EESR_FRC | /* Frame recv*/
+ EESR_RMAF | /* Multi cast address recv*/
+ EESR_RRF | /* Bit frame recv */
+ EESR_RTLF | /* Long frame recv*/
+ EESR_RTSF | /* short frame recv */
+ EESR_PRE | /* PHY-LSI recv error */
+ EESR_CERF)){ /* recv frame CRC error */
+ sh_eth_rx(ndev);
+ }
+
+ /* Tx Check */
+ if (intr_status & cd->tx_check) {
+ sh_eth_txfree(ndev);
+ netif_wake_queue(ndev);
+ }
+
+ if (intr_status & cd->eesr_err_check)
+ sh_eth_error(ndev, intr_status);
+
+other_irq:
+ spin_unlock(&mdp->lock);
+
+ return ret;
+}
+
+static void sh_eth_timer(unsigned long data)
+{
+ struct net_device *ndev = (struct net_device *)data;
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ mod_timer(&mdp->timer, jiffies + (10 * HZ));
+}
+
+/* PHY state control function */
+static void sh_eth_adjust_link(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct phy_device *phydev = mdp->phydev;
+ int new_state = 0;
+
+ if (phydev->link != PHY_DOWN) {
+ if (phydev->duplex != mdp->duplex) {
+ new_state = 1;
+ mdp->duplex = phydev->duplex;
+ if (mdp->cd->set_duplex)
+ mdp->cd->set_duplex(ndev);
+ }
+
+ if (phydev->speed != mdp->speed) {
+ new_state = 1;
+ mdp->speed = phydev->speed;
+ if (mdp->cd->set_rate)
+ mdp->cd->set_rate(ndev);
+ }
+ if (mdp->link == PHY_DOWN) {
+ sh_eth_write(ndev,
+ (sh_eth_read(ndev, ECMR) & ~ECMR_TXF), ECMR);
+ new_state = 1;
+ mdp->link = phydev->link;
+ }
+ } else if (mdp->link) {
+ new_state = 1;
+ mdp->link = PHY_DOWN;
+ mdp->speed = 0;
+ mdp->duplex = -1;
+ }
+
+ if (new_state && netif_msg_link(mdp))
+ phy_print_status(phydev);
+}
+
+/* PHY init function */
+static int sh_eth_phy_init(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ char phy_id[MII_BUS_ID_SIZE + 3];
+ struct phy_device *phydev = NULL;
+
+ snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT,
+ mdp->mii_bus->id , mdp->phy_id);
+
+ mdp->link = PHY_DOWN;
+ mdp->speed = 0;
+ mdp->duplex = -1;
+
+ /* Try connect to PHY */
+ phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link,
+ 0, mdp->phy_interface);
+ if (IS_ERR(phydev)) {
+ dev_err(&ndev->dev, "phy_connect failed\n");
+ return PTR_ERR(phydev);
+ }
+
+ dev_info(&ndev->dev, "attached phy %i to driver %s\n",
+ phydev->addr, phydev->drv->name);
+
+ mdp->phydev = phydev;
+
+ return 0;
+}
+
+/* PHY control start function */
+static int sh_eth_phy_start(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int ret;
+
+ ret = sh_eth_phy_init(ndev);
+ if (ret)
+ return ret;
+
+ /* reset phy - this also wakes it from PDOWN */
+ phy_write(mdp->phydev, MII_BMCR, BMCR_RESET);
+ phy_start(mdp->phydev);
+
+ return 0;
+}
+
+static int sh_eth_get_settings(struct net_device *ndev,
+ struct ethtool_cmd *ecmd)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&mdp->lock, flags);
+ ret = phy_ethtool_gset(mdp->phydev, ecmd);
+ spin_unlock_irqrestore(&mdp->lock, flags);
+
+ return ret;
+}
+
+static int sh_eth_set_settings(struct net_device *ndev,
+ struct ethtool_cmd *ecmd)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&mdp->lock, flags);
+
+ /* disable tx and rx */
+ sh_eth_rcv_snd_disable(ndev);
+
+ ret = phy_ethtool_sset(mdp->phydev, ecmd);
+ if (ret)
+ goto error_exit;
+
+ if (ecmd->duplex == DUPLEX_FULL)
+ mdp->duplex = 1;
+ else
+ mdp->duplex = 0;
+
+ if (mdp->cd->set_duplex)
+ mdp->cd->set_duplex(ndev);
+
+error_exit:
+ mdelay(1);
+
+ /* enable tx and rx */
+ sh_eth_rcv_snd_enable(ndev);
+
+ spin_unlock_irqrestore(&mdp->lock, flags);
+
+ return ret;
+}
+
+static int sh_eth_nway_reset(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&mdp->lock, flags);
+ ret = phy_start_aneg(mdp->phydev);
+ spin_unlock_irqrestore(&mdp->lock, flags);
+
+ return ret;
+}
+
+static u32 sh_eth_get_msglevel(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ return mdp->msg_enable;
+}
+
+static void sh_eth_set_msglevel(struct net_device *ndev, u32 value)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ mdp->msg_enable = value;
+}
+
+static const char sh_eth_gstrings_stats[][ETH_GSTRING_LEN] = {
+ "rx_current", "tx_current",
+ "rx_dirty", "tx_dirty",
+};
+#define SH_ETH_STATS_LEN ARRAY_SIZE(sh_eth_gstrings_stats)
+
+static int sh_eth_get_sset_count(struct net_device *netdev, int sset)
+{
+ switch (sset) {
+ case ETH_SS_STATS:
+ return SH_ETH_STATS_LEN;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static void sh_eth_get_ethtool_stats(struct net_device *ndev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int i = 0;
+
+ /* device-specific stats */
+ data[i++] = mdp->cur_rx;
+ data[i++] = mdp->cur_tx;
+ data[i++] = mdp->dirty_rx;
+ data[i++] = mdp->dirty_tx;
+}
+
+static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+ switch (stringset) {
+ case ETH_SS_STATS:
+ memcpy(data, *sh_eth_gstrings_stats,
+ sizeof(sh_eth_gstrings_stats));
+ break;
+ }
+}
+
+static struct ethtool_ops sh_eth_ethtool_ops = {
+ .get_settings = sh_eth_get_settings,
+ .set_settings = sh_eth_set_settings,
+ .nway_reset = sh_eth_nway_reset,
+ .get_msglevel = sh_eth_get_msglevel,
+ .set_msglevel = sh_eth_set_msglevel,
+ .get_link = ethtool_op_get_link,
+ .get_strings = sh_eth_get_strings,
+ .get_ethtool_stats = sh_eth_get_ethtool_stats,
+ .get_sset_count = sh_eth_get_sset_count,
+};
+
+/* network device open function */
+static int sh_eth_open(struct net_device *ndev)
+{
+ int ret = 0;
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ pm_runtime_get_sync(&mdp->pdev->dev);
+
+ ret = request_irq(ndev->irq, sh_eth_interrupt,
+#if defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7764) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7757)
+ IRQF_SHARED,
+#else
+ 0,
+#endif
+ ndev->name, ndev);
+ if (ret) {
+ dev_err(&ndev->dev, "Can not assign IRQ number\n");
+ return ret;
+ }
+
+ /* Descriptor set */
+ ret = sh_eth_ring_init(ndev);
+ if (ret)
+ goto out_free_irq;
+
+ /* device init */
+ ret = sh_eth_dev_init(ndev);
+ if (ret)
+ goto out_free_irq;
+
+ /* PHY control start*/
+ ret = sh_eth_phy_start(ndev);
+ if (ret)
+ goto out_free_irq;
+
+ /* Set the timer to check for link beat. */
+ init_timer(&mdp->timer);
+ mdp->timer.expires = (jiffies + (24 * HZ)) / 10;/* 2.4 sec. */
+ setup_timer(&mdp->timer, sh_eth_timer, (unsigned long)ndev);
+
+ return ret;
+
+out_free_irq:
+ free_irq(ndev->irq, ndev);
+ pm_runtime_put_sync(&mdp->pdev->dev);
+ return ret;
+}
+
+/* Timeout function */
+static void sh_eth_tx_timeout(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct sh_eth_rxdesc *rxdesc;
+ int i;
+
+ netif_stop_queue(ndev);
+
+ if (netif_msg_timer(mdp))
+ dev_err(&ndev->dev, "%s: transmit timed out, status %8.8x,"
+ " resetting...\n", ndev->name, (int)sh_eth_read(ndev, EESR));
+
+ /* tx_errors count up */
+ mdp->stats.tx_errors++;
+
+ /* timer off */
+ del_timer_sync(&mdp->timer);
+
+ /* Free all the skbuffs in the Rx queue. */
+ for (i = 0; i < RX_RING_SIZE; i++) {
+ rxdesc = &mdp->rx_ring[i];
+ rxdesc->status = 0;
+ rxdesc->addr = 0xBADF00D0;
+ if (mdp->rx_skbuff[i])
+ dev_kfree_skb(mdp->rx_skbuff[i]);
+ mdp->rx_skbuff[i] = NULL;
+ }
+ for (i = 0; i < TX_RING_SIZE; i++) {
+ if (mdp->tx_skbuff[i])
+ dev_kfree_skb(mdp->tx_skbuff[i]);
+ mdp->tx_skbuff[i] = NULL;
+ }
+
+ /* device init */
+ sh_eth_dev_init(ndev);
+
+ /* timer on */
+ mdp->timer.expires = (jiffies + (24 * HZ)) / 10;/* 2.4 sec. */
+ add_timer(&mdp->timer);
+}
+
+/* Packet transmit function */
+static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct sh_eth_txdesc *txdesc;
+ u32 entry;
+ unsigned long flags;
+
+ spin_lock_irqsave(&mdp->lock, flags);
+ if ((mdp->cur_tx - mdp->dirty_tx) >= (TX_RING_SIZE - 4)) {
+ if (!sh_eth_txfree(ndev)) {
+ if (netif_msg_tx_queued(mdp))
+ dev_warn(&ndev->dev, "TxFD exhausted.\n");
+ netif_stop_queue(ndev);
+ spin_unlock_irqrestore(&mdp->lock, flags);
+ return NETDEV_TX_BUSY;
+ }
+ }
+ spin_unlock_irqrestore(&mdp->lock, flags);
+
+ entry = mdp->cur_tx % TX_RING_SIZE;
+ mdp->tx_skbuff[entry] = skb;
+ txdesc = &mdp->tx_ring[entry];
+ /* soft swap. */
+ if (!mdp->cd->hw_swap)
+ sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)),
+ skb->len + 2);
+ txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len,
+ DMA_TO_DEVICE);
+ if (skb->len < ETHERSMALL)
+ txdesc->buffer_length = ETHERSMALL;
+ else
+ txdesc->buffer_length = skb->len;
+
+ if (entry >= TX_RING_SIZE - 1)
+ txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE);
+ else
+ txdesc->status |= cpu_to_edmac(mdp, TD_TACT);
+
+ mdp->cur_tx++;
+
+ if (!(sh_eth_read(ndev, EDTRR) & sh_eth_get_edtrr_trns(mdp)))
+ sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR);
+
+ return NETDEV_TX_OK;
+}
+
+/* device close function */
+static int sh_eth_close(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int ringsize;
+
+ netif_stop_queue(ndev);
+
+ /* Disable interrupts by clearing the interrupt mask. */
+ sh_eth_write(ndev, 0x0000, EESIPR);
+
+ /* Stop the chip's Tx and Rx processes. */
+ sh_eth_write(ndev, 0, EDTRR);
+ sh_eth_write(ndev, 0, EDRRR);
+
+ /* PHY Disconnect */
+ if (mdp->phydev) {
+ phy_stop(mdp->phydev);
+ phy_disconnect(mdp->phydev);
+ }
+
+ free_irq(ndev->irq, ndev);
+
+ del_timer_sync(&mdp->timer);
+
+ /* Free all the skbuffs in the Rx queue. */
+ sh_eth_ring_free(ndev);
+
+ /* free DMA buffer */
+ ringsize = sizeof(struct sh_eth_rxdesc) * RX_RING_SIZE;
+ dma_free_coherent(NULL, ringsize, mdp->rx_ring, mdp->rx_desc_dma);
+
+ /* free DMA buffer */
+ ringsize = sizeof(struct sh_eth_txdesc) * TX_RING_SIZE;
+ dma_free_coherent(NULL, ringsize, mdp->tx_ring, mdp->tx_desc_dma);
+
+ pm_runtime_put_sync(&mdp->pdev->dev);
+
+ return 0;
+}
+
+static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ pm_runtime_get_sync(&mdp->pdev->dev);
+
+ mdp->stats.tx_dropped += sh_eth_read(ndev, TROCR);
+ sh_eth_write(ndev, 0, TROCR); /* (write clear) */
+ mdp->stats.collisions += sh_eth_read(ndev, CDCR);
+ sh_eth_write(ndev, 0, CDCR); /* (write clear) */
+ mdp->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR);
+ sh_eth_write(ndev, 0, LCCR); /* (write clear) */
+ if (sh_eth_is_gether(mdp)) {
+ mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR);
+ sh_eth_write(ndev, 0, CERCR); /* (write clear) */
+ mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR);
+ sh_eth_write(ndev, 0, CEECR); /* (write clear) */
+ } else {
+ mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR);
+ sh_eth_write(ndev, 0, CNDCR); /* (write clear) */
+ }
+ pm_runtime_put_sync(&mdp->pdev->dev);
+
+ return &mdp->stats;
+}
+
+/* ioctl to device funciotn*/
+static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq,
+ int cmd)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ struct phy_device *phydev = mdp->phydev;
+
+ if (!netif_running(ndev))
+ return -EINVAL;
+
+ if (!phydev)
+ return -ENODEV;
+
+ return phy_mii_ioctl(phydev, rq, cmd);
+}
+
+#if defined(SH_ETH_HAS_TSU)
+/* Multicast reception directions set */
+static void sh_eth_set_multicast_list(struct net_device *ndev)
+{
+ if (ndev->flags & IFF_PROMISC) {
+ /* Set promiscuous. */
+ sh_eth_write(ndev, (sh_eth_read(ndev, ECMR) & ~ECMR_MCT) |
+ ECMR_PRM, ECMR);
+ } else {
+ /* Normal, unicast/broadcast-only mode. */
+ sh_eth_write(ndev, (sh_eth_read(ndev, ECMR) & ~ECMR_PRM) |
+ ECMR_MCT, ECMR);
+ }
+}
+#endif /* SH_ETH_HAS_TSU */
+
+/* SuperH's TSU register init function */
+static void sh_eth_tsu_init(struct sh_eth_private *mdp)
+{
+ sh_eth_tsu_write(mdp, 0, TSU_FWEN0); /* Disable forward(0->1) */
+ sh_eth_tsu_write(mdp, 0, TSU_FWEN1); /* Disable forward(1->0) */
+ sh_eth_tsu_write(mdp, 0, TSU_FCM); /* forward fifo 3k-3k */
+ sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL0);
+ sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL1);
+ sh_eth_tsu_write(mdp, 0, TSU_PRISL0);
+ sh_eth_tsu_write(mdp, 0, TSU_PRISL1);
+ sh_eth_tsu_write(mdp, 0, TSU_FWSL0);
+ sh_eth_tsu_write(mdp, 0, TSU_FWSL1);
+ sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC);
+ if (sh_eth_is_gether(mdp)) {
+ sh_eth_tsu_write(mdp, 0, TSU_QTAG0); /* Disable QTAG(0->1) */
+ sh_eth_tsu_write(mdp, 0, TSU_QTAG1); /* Disable QTAG(1->0) */
+ } else {
+ sh_eth_tsu_write(mdp, 0, TSU_QTAGM0); /* Disable QTAG(0->1) */
+ sh_eth_tsu_write(mdp, 0, TSU_QTAGM1); /* Disable QTAG(1->0) */
+ }
+ sh_eth_tsu_write(mdp, 0, TSU_FWSR); /* all interrupt status clear */
+ sh_eth_tsu_write(mdp, 0, TSU_FWINMK); /* Disable all interrupt */
+ sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */
+ sh_eth_tsu_write(mdp, 0, TSU_POST1); /* Disable CAM entry [ 0- 7] */
+ sh_eth_tsu_write(mdp, 0, TSU_POST2); /* Disable CAM entry [ 8-15] */
+ sh_eth_tsu_write(mdp, 0, TSU_POST3); /* Disable CAM entry [16-23] */
+ sh_eth_tsu_write(mdp, 0, TSU_POST4); /* Disable CAM entry [24-31] */
+}
+
+/* MDIO bus release function */
+static int sh_mdio_release(struct net_device *ndev)
+{
+ struct mii_bus *bus = dev_get_drvdata(&ndev->dev);
+
+ /* unregister mdio bus */
+ mdiobus_unregister(bus);
+
+ /* remove mdio bus info from net_device */
+ dev_set_drvdata(&ndev->dev, NULL);
+
+ /* free interrupts memory */
+ kfree(bus->irq);
+
+ /* free bitbang info */
+ free_mdio_bitbang(bus);
+
+ return 0;
+}
+
+/* MDIO bus init function */
+static int sh_mdio_init(struct net_device *ndev, int id,
+ struct sh_eth_plat_data *pd)
+{
+ int ret, i;
+ struct bb_info *bitbang;
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ /* create bit control struct for PHY */
+ bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL);
+ if (!bitbang) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* bitbang init */
+ bitbang->addr = mdp->addr + mdp->reg_offset[PIR];
+ bitbang->set_gate = pd->set_mdio_gate;
+ bitbang->mdi_msk = 0x08;
+ bitbang->mdo_msk = 0x04;
+ bitbang->mmd_msk = 0x02;/* MMD */
+ bitbang->mdc_msk = 0x01;
+ bitbang->ctrl.ops = &bb_ops;
+
+ /* MII controller setting */
+ mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl);
+ if (!mdp->mii_bus) {
+ ret = -ENOMEM;
+ goto out_free_bitbang;
+ }
+
+ /* Hook up MII support for ethtool */
+ mdp->mii_bus->name = "sh_mii";
+ mdp->mii_bus->parent = &ndev->dev;
+ snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%x", id);
+
+ /* PHY IRQ */
+ mdp->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL);
+ if (!mdp->mii_bus->irq) {
+ ret = -ENOMEM;
+ goto out_free_bus;
+ }
+
+ for (i = 0; i < PHY_MAX_ADDR; i++)
+ mdp->mii_bus->irq[i] = PHY_POLL;
+
+ /* regist mdio bus */
+ ret = mdiobus_register(mdp->mii_bus);
+ if (ret)
+ goto out_free_irq;
+
+ dev_set_drvdata(&ndev->dev, mdp->mii_bus);
+
+ return 0;
+
+out_free_irq:
+ kfree(mdp->mii_bus->irq);
+
+out_free_bus:
+ free_mdio_bitbang(mdp->mii_bus);
+
+out_free_bitbang:
+ kfree(bitbang);
+
+out:
+ return ret;
+}
+
+static const u16 *sh_eth_get_register_offset(int register_type)
+{
+ const u16 *reg_offset = NULL;
+
+ switch (register_type) {
+ case SH_ETH_REG_GIGABIT:
+ reg_offset = sh_eth_offset_gigabit;
+ break;
+ case SH_ETH_REG_FAST_SH4:
+ reg_offset = sh_eth_offset_fast_sh4;
+ break;
+ case SH_ETH_REG_FAST_SH3_SH2:
+ reg_offset = sh_eth_offset_fast_sh3_sh2;
+ break;
+ default:
+ printk(KERN_ERR "Unknown register type (%d)\n", register_type);
+ break;
+ }
+
+ return reg_offset;
+}
+
+static const struct net_device_ops sh_eth_netdev_ops = {
+ .ndo_open = sh_eth_open,
+ .ndo_stop = sh_eth_close,
+ .ndo_start_xmit = sh_eth_start_xmit,
+ .ndo_get_stats = sh_eth_get_stats,
+#if defined(SH_ETH_HAS_TSU)
+ .ndo_set_rx_mode = sh_eth_set_multicast_list,
+#endif
+ .ndo_tx_timeout = sh_eth_tx_timeout,
+ .ndo_do_ioctl = sh_eth_do_ioctl,
+ .ndo_validate_addr = eth_validate_addr,
+ .ndo_set_mac_address = eth_mac_addr,
+ .ndo_change_mtu = eth_change_mtu,
+};
+
+static int sh_eth_drv_probe(struct platform_device *pdev)
+{
+ int ret, devno = 0;
+ struct resource *res;
+ struct net_device *ndev = NULL;
+ struct sh_eth_private *mdp = NULL;
+ struct sh_eth_plat_data *pd;
+
+ /* get base addr */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (unlikely(res == NULL)) {
+ dev_err(&pdev->dev, "invalid resource\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ndev = alloc_etherdev(sizeof(struct sh_eth_private));
+ if (!ndev) {
+ dev_err(&pdev->dev, "Could not allocate device.\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ /* The sh Ether-specific entries in the device structure. */
+ ndev->base_addr = res->start;
+ devno = pdev->id;
+ if (devno < 0)
+ devno = 0;
+
+ ndev->dma = -1;
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ ret = -ENODEV;
+ goto out_release;
+ }
+ ndev->irq = ret;
+
+ SET_NETDEV_DEV(ndev, &pdev->dev);
+
+ /* Fill in the fields of the device structure with ethernet values. */
+ ether_setup(ndev);
+
+ mdp = netdev_priv(ndev);
+ mdp->addr = ioremap(res->start, resource_size(res));
+ if (mdp->addr == NULL) {
+ ret = -ENOMEM;
+ dev_err(&pdev->dev, "ioremap failed.\n");
+ goto out_release;
+ }
+
+ spin_lock_init(&mdp->lock);
+ mdp->pdev = pdev;
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_resume(&pdev->dev);
+
+ pd = (struct sh_eth_plat_data *)(pdev->dev.platform_data);
+ /* get PHY ID */
+ mdp->phy_id = pd->phy;
+ mdp->phy_interface = pd->phy_interface;
+ /* EDMAC endian */
+ mdp->edmac_endian = pd->edmac_endian;
+ mdp->no_ether_link = pd->no_ether_link;
+ mdp->ether_link_active_low = pd->ether_link_active_low;
+ mdp->reg_offset = sh_eth_get_register_offset(pd->register_type);
+
+ /* set cpu data */
+#if defined(SH_ETH_HAS_BOTH_MODULES)
+ mdp->cd = sh_eth_get_cpu_data(mdp);
+#else
+ mdp->cd = &sh_eth_my_cpu_data;
+#endif
+ sh_eth_set_default_cpu_data(mdp->cd);
+
+ /* set function */
+ ndev->netdev_ops = &sh_eth_netdev_ops;
+ SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops);
+ ndev->watchdog_timeo = TX_TIMEOUT;
+
+ /* debug message level */
+ mdp->msg_enable = SH_ETH_DEF_MSG_ENABLE;
+ mdp->post_rx = POST_RX >> (devno << 1);
+ mdp->post_fw = POST_FW >> (devno << 1);
+
+ /* read and set MAC address */
+ read_mac_address(ndev, pd->mac_addr);
+
+ /* First device only init */
+ if (!devno) {
+ if (mdp->cd->tsu) {
+ struct resource *rtsu;
+ rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ if (!rtsu) {
+ dev_err(&pdev->dev, "Not found TSU resource\n");
+ goto out_release;
+ }
+ mdp->tsu_addr = ioremap(rtsu->start,
+ resource_size(rtsu));
+ }
+ if (mdp->cd->chip_reset)
+ mdp->cd->chip_reset(ndev);
+
+ if (mdp->cd->tsu) {
+ /* TSU init (Init only)*/
+ sh_eth_tsu_init(mdp);
+ }
+ }
+
+ /* network device register */
+ ret = register_netdev(ndev);
+ if (ret)
+ goto out_release;
+
+ /* mdio bus init */
+ ret = sh_mdio_init(ndev, pdev->id, pd);
+ if (ret)
+ goto out_unregister;
+
+ /* print device information */
+ pr_info("Base address at 0x%x, %pM, IRQ %d.\n",
+ (u32)ndev->base_addr, ndev->dev_addr, ndev->irq);
+
+ platform_set_drvdata(pdev, ndev);
+
+ return ret;
+
+out_unregister:
+ unregister_netdev(ndev);
+
+out_release:
+ /* net_dev free */
+ if (mdp && mdp->addr)
+ iounmap(mdp->addr);
+ if (mdp && mdp->tsu_addr)
+ iounmap(mdp->tsu_addr);
+ if (ndev)
+ free_netdev(ndev);
+
+out:
+ return ret;
+}
+
+static int sh_eth_drv_remove(struct platform_device *pdev)
+{
+ struct net_device *ndev = platform_get_drvdata(pdev);
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+
+ iounmap(mdp->tsu_addr);
+ sh_mdio_release(ndev);
+ unregister_netdev(ndev);
+ pm_runtime_disable(&pdev->dev);
+ iounmap(mdp->addr);
+ free_netdev(ndev);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static int sh_eth_runtime_nop(struct device *dev)
+{
+ /*
+ * Runtime PM callback shared between ->runtime_suspend()
+ * and ->runtime_resume(). Simply returns success.
+ *
+ * This driver re-initializes all registers after
+ * pm_runtime_get_sync() anyway so there is no need
+ * to save and restore registers here.
+ */
+ return 0;
+}
+
+static struct dev_pm_ops sh_eth_dev_pm_ops = {
+ .runtime_suspend = sh_eth_runtime_nop,
+ .runtime_resume = sh_eth_runtime_nop,
+};
+
+static struct platform_driver sh_eth_driver = {
+ .probe = sh_eth_drv_probe,
+ .remove = sh_eth_drv_remove,
+ .driver = {
+ .name = CARDNAME,
+ .pm = &sh_eth_dev_pm_ops,
+ },
+};
+
+static int __init sh_eth_init(void)
+{
+ return platform_driver_register(&sh_eth_driver);
+}
+
+static void __exit sh_eth_cleanup(void)
+{
+ platform_driver_unregister(&sh_eth_driver);
+}
+
+module_init(sh_eth_init);
+module_exit(sh_eth_cleanup);
+
+MODULE_AUTHOR("Nobuhiro Iwamatsu, Yoshihiro Shimoda");
+MODULE_DESCRIPTION("Renesas SuperH Ethernet driver");
+MODULE_LICENSE("GPL v2");