197fb5e8dSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2b9b17debSTimur Tabi /* Copyright (c) 2013-2016, The Linux Foundation. All rights reserved. 3b9b17debSTimur Tabi */ 4b9b17debSTimur Tabi 5b9b17debSTimur Tabi /* Qualcomm Technologies, Inc. EMAC Gigabit Ethernet Driver */ 6b9b17debSTimur Tabi 7b9b17debSTimur Tabi #include <linux/if_ether.h> 8b9b17debSTimur Tabi #include <linux/if_vlan.h> 9b9b17debSTimur Tabi #include <linux/interrupt.h> 10b9b17debSTimur Tabi #include <linux/io.h> 11b9b17debSTimur Tabi #include <linux/module.h> 12b9b17debSTimur Tabi #include <linux/of.h> 13b9b17debSTimur Tabi #include <linux/of_net.h> 14b9b17debSTimur Tabi #include <linux/of_device.h> 15b9b17debSTimur Tabi #include <linux/phy.h> 16b9b17debSTimur Tabi #include <linux/platform_device.h> 175f3d3807STimur Tabi #include <linux/acpi.h> 18b9b17debSTimur Tabi #include "emac.h" 19b9b17debSTimur Tabi #include "emac-mac.h" 20b9b17debSTimur Tabi #include "emac-phy.h" 21b9b17debSTimur Tabi #include "emac-sgmii.h" 22b9b17debSTimur Tabi 23b9b17debSTimur Tabi #define EMAC_MSG_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK | \ 24b9b17debSTimur Tabi NETIF_MSG_TIMER | NETIF_MSG_IFDOWN | NETIF_MSG_IFUP) 25b9b17debSTimur Tabi 26b9b17debSTimur Tabi #define EMAC_RRD_SIZE 4 27b9b17debSTimur Tabi /* The RRD size if timestamping is enabled: */ 28b9b17debSTimur Tabi #define EMAC_TS_RRD_SIZE 6 29b9b17debSTimur Tabi #define EMAC_TPD_SIZE 4 30b9b17debSTimur Tabi #define EMAC_RFD_SIZE 2 31b9b17debSTimur Tabi 32b9b17debSTimur Tabi #define REG_MAC_RX_STATUS_BIN EMAC_RXMAC_STATC_REG0 33b9b17debSTimur Tabi #define REG_MAC_RX_STATUS_END EMAC_RXMAC_STATC_REG22 34b9b17debSTimur Tabi #define REG_MAC_TX_STATUS_BIN EMAC_TXMAC_STATC_REG0 35b9b17debSTimur Tabi #define REG_MAC_TX_STATUS_END EMAC_TXMAC_STATC_REG24 36b9b17debSTimur Tabi 37b9b17debSTimur Tabi #define RXQ0_NUM_RFD_PREF_DEF 8 38b9b17debSTimur Tabi #define TXQ0_NUM_TPD_PREF_DEF 5 39b9b17debSTimur Tabi 40b9b17debSTimur Tabi #define EMAC_PREAMBLE_DEF 7 41b9b17debSTimur Tabi 42b9b17debSTimur Tabi #define DMAR_DLY_CNT_DEF 15 43b9b17debSTimur Tabi #define DMAW_DLY_CNT_DEF 4 44b9b17debSTimur Tabi 4524609669STimur Tabi #define IMR_NORMAL_MASK (ISR_ERROR | ISR_OVER | ISR_TX_PKT) 46b9b17debSTimur Tabi 47b9b17debSTimur Tabi #define ISR_TX_PKT (\ 48b9b17debSTimur Tabi TX_PKT_INT |\ 49b9b17debSTimur Tabi TX_PKT_INT1 |\ 50b9b17debSTimur Tabi TX_PKT_INT2 |\ 51b9b17debSTimur Tabi TX_PKT_INT3) 52b9b17debSTimur Tabi 53b9b17debSTimur Tabi #define ISR_OVER (\ 54b9b17debSTimur Tabi RFD0_UR_INT |\ 55b9b17debSTimur Tabi RFD1_UR_INT |\ 56b9b17debSTimur Tabi RFD2_UR_INT |\ 57b9b17debSTimur Tabi RFD3_UR_INT |\ 58b9b17debSTimur Tabi RFD4_UR_INT |\ 59b9b17debSTimur Tabi RXF_OF_INT |\ 60b9b17debSTimur Tabi TXF_UR_INT) 61b9b17debSTimur Tabi 62b9b17debSTimur Tabi #define ISR_ERROR (\ 63b9b17debSTimur Tabi DMAR_TO_INT |\ 64b9b17debSTimur Tabi DMAW_TO_INT |\ 65b9b17debSTimur Tabi TXQ_TO_INT) 66b9b17debSTimur Tabi 67b9b17debSTimur Tabi /* in sync with enum emac_clk_id */ 68b9b17debSTimur Tabi static const char * const emac_clk_name[] = { 69b9b17debSTimur Tabi "axi_clk", "cfg_ahb_clk", "high_speed_clk", "mdio_clk", "tx_clk", 70b9b17debSTimur Tabi "rx_clk", "sys_clk" 71b9b17debSTimur Tabi }; 72b9b17debSTimur Tabi 73b9b17debSTimur Tabi void emac_reg_update32(void __iomem *addr, u32 mask, u32 val) 74b9b17debSTimur Tabi { 75b9b17debSTimur Tabi u32 data = readl(addr); 76b9b17debSTimur Tabi 77b9b17debSTimur Tabi writel(((data & ~mask) | val), addr); 78b9b17debSTimur Tabi } 79b9b17debSTimur Tabi 80b9b17debSTimur Tabi /* reinitialize */ 81b9b17debSTimur Tabi int emac_reinit_locked(struct emac_adapter *adpt) 82b9b17debSTimur Tabi { 83b9b17debSTimur Tabi int ret; 84b9b17debSTimur Tabi 85b9b17debSTimur Tabi mutex_lock(&adpt->reset_lock); 86b9b17debSTimur Tabi 87b9b17debSTimur Tabi emac_mac_down(adpt); 88b9b17debSTimur Tabi emac_sgmii_reset(adpt); 89b9b17debSTimur Tabi ret = emac_mac_up(adpt); 90b9b17debSTimur Tabi 91b9b17debSTimur Tabi mutex_unlock(&adpt->reset_lock); 92b9b17debSTimur Tabi 93b9b17debSTimur Tabi return ret; 94b9b17debSTimur Tabi } 95b9b17debSTimur Tabi 96b9b17debSTimur Tabi /* NAPI */ 97b9b17debSTimur Tabi static int emac_napi_rtx(struct napi_struct *napi, int budget) 98b9b17debSTimur Tabi { 99b9b17debSTimur Tabi struct emac_rx_queue *rx_q = 100b9b17debSTimur Tabi container_of(napi, struct emac_rx_queue, napi); 101b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(rx_q->netdev); 102b9b17debSTimur Tabi struct emac_irq *irq = rx_q->irq; 103b9b17debSTimur Tabi int work_done = 0; 104b9b17debSTimur Tabi 105b9b17debSTimur Tabi emac_mac_rx_process(adpt, rx_q, &work_done, budget); 106b9b17debSTimur Tabi 107b9b17debSTimur Tabi if (work_done < budget) { 1086ad20165SEric Dumazet napi_complete_done(napi, work_done); 109b9b17debSTimur Tabi 110b9b17debSTimur Tabi irq->mask |= rx_q->intr; 111b9b17debSTimur Tabi writel(irq->mask, adpt->base + EMAC_INT_MASK); 112b9b17debSTimur Tabi } 113b9b17debSTimur Tabi 114b9b17debSTimur Tabi return work_done; 115b9b17debSTimur Tabi } 116b9b17debSTimur Tabi 117b9b17debSTimur Tabi /* Transmit the packet */ 118b9b17debSTimur Tabi static int emac_start_xmit(struct sk_buff *skb, struct net_device *netdev) 119b9b17debSTimur Tabi { 120b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 121b9b17debSTimur Tabi 122b9b17debSTimur Tabi return emac_mac_tx_buf_send(adpt, &adpt->tx_q, skb); 123b9b17debSTimur Tabi } 124b9b17debSTimur Tabi 125d009313cSColin Ian King static irqreturn_t emac_isr(int _irq, void *data) 126b9b17debSTimur Tabi { 127b9b17debSTimur Tabi struct emac_irq *irq = data; 128b9b17debSTimur Tabi struct emac_adapter *adpt = 129b9b17debSTimur Tabi container_of(irq, struct emac_adapter, irq); 130b9b17debSTimur Tabi struct emac_rx_queue *rx_q = &adpt->rx_q; 131b9b17debSTimur Tabi u32 isr, status; 132b9b17debSTimur Tabi 133b9b17debSTimur Tabi /* disable the interrupt */ 134b9b17debSTimur Tabi writel(0, adpt->base + EMAC_INT_MASK); 135b9b17debSTimur Tabi 136b9b17debSTimur Tabi isr = readl_relaxed(adpt->base + EMAC_INT_STATUS); 137b9b17debSTimur Tabi 138b9b17debSTimur Tabi status = isr & irq->mask; 139b9b17debSTimur Tabi if (status == 0) 140b9b17debSTimur Tabi goto exit; 141b9b17debSTimur Tabi 142b9b17debSTimur Tabi if (status & ISR_ERROR) { 143740d6f18STimur Tabi net_err_ratelimited("%s: error interrupt 0x%lx\n", 144740d6f18STimur Tabi adpt->netdev->name, status & ISR_ERROR); 145b9b17debSTimur Tabi /* reset MAC */ 146b9b17debSTimur Tabi schedule_work(&adpt->work_thread); 147b9b17debSTimur Tabi } 148b9b17debSTimur Tabi 149b9b17debSTimur Tabi /* Schedule the napi for receive queue with interrupt 150b9b17debSTimur Tabi * status bit set 151b9b17debSTimur Tabi */ 152b9b17debSTimur Tabi if (status & rx_q->intr) { 153b9b17debSTimur Tabi if (napi_schedule_prep(&rx_q->napi)) { 154b9b17debSTimur Tabi irq->mask &= ~rx_q->intr; 155b9b17debSTimur Tabi __napi_schedule(&rx_q->napi); 156b9b17debSTimur Tabi } 157b9b17debSTimur Tabi } 158b9b17debSTimur Tabi 159b9b17debSTimur Tabi if (status & TX_PKT_INT) 160b9b17debSTimur Tabi emac_mac_tx_process(adpt, &adpt->tx_q); 161b9b17debSTimur Tabi 162b9b17debSTimur Tabi if (status & ISR_OVER) 163740d6f18STimur Tabi net_warn_ratelimited("%s: TX/RX overflow interrupt\n", 164740d6f18STimur Tabi adpt->netdev->name); 165b9b17debSTimur Tabi 166b9b17debSTimur Tabi exit: 167b9b17debSTimur Tabi /* enable the interrupt */ 168b9b17debSTimur Tabi writel(irq->mask, adpt->base + EMAC_INT_MASK); 169b9b17debSTimur Tabi 170b9b17debSTimur Tabi return IRQ_HANDLED; 171b9b17debSTimur Tabi } 172b9b17debSTimur Tabi 173b9b17debSTimur Tabi /* Configure VLAN tag strip/insert feature */ 174b9b17debSTimur Tabi static int emac_set_features(struct net_device *netdev, 175b9b17debSTimur Tabi netdev_features_t features) 176b9b17debSTimur Tabi { 177b9b17debSTimur Tabi netdev_features_t changed = features ^ netdev->features; 178b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 179b9b17debSTimur Tabi 180b9b17debSTimur Tabi /* We only need to reprogram the hardware if the VLAN tag features 181b9b17debSTimur Tabi * have changed, and if it's already running. 182b9b17debSTimur Tabi */ 183b9b17debSTimur Tabi if (!(changed & (NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX))) 184b9b17debSTimur Tabi return 0; 185b9b17debSTimur Tabi 186b9b17debSTimur Tabi if (!netif_running(netdev)) 187b9b17debSTimur Tabi return 0; 188b9b17debSTimur Tabi 189b9b17debSTimur Tabi /* emac_mac_mode_config() uses netdev->features to configure the EMAC, 190b9b17debSTimur Tabi * so make sure it's set first. 191b9b17debSTimur Tabi */ 192b9b17debSTimur Tabi netdev->features = features; 193b9b17debSTimur Tabi 194b9b17debSTimur Tabi return emac_reinit_locked(adpt); 195b9b17debSTimur Tabi } 196b9b17debSTimur Tabi 197b9b17debSTimur Tabi /* Configure Multicast and Promiscuous modes */ 198b9b17debSTimur Tabi static void emac_rx_mode_set(struct net_device *netdev) 199b9b17debSTimur Tabi { 200b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 201b9b17debSTimur Tabi struct netdev_hw_addr *ha; 202b9b17debSTimur Tabi 203b9b17debSTimur Tabi emac_mac_mode_config(adpt); 204b9b17debSTimur Tabi 205b9b17debSTimur Tabi /* update multicast address filtering */ 206b9b17debSTimur Tabi emac_mac_multicast_addr_clear(adpt); 207b9b17debSTimur Tabi netdev_for_each_mc_addr(ha, netdev) 208b9b17debSTimur Tabi emac_mac_multicast_addr_set(adpt, ha->addr); 209b9b17debSTimur Tabi } 210b9b17debSTimur Tabi 211b9b17debSTimur Tabi /* Change the Maximum Transfer Unit (MTU) */ 212b9b17debSTimur Tabi static int emac_change_mtu(struct net_device *netdev, int new_mtu) 213b9b17debSTimur Tabi { 214b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 215b9b17debSTimur Tabi 21654093866SFlorian Fainelli netif_dbg(adpt, hw, adpt->netdev, 217b9b17debSTimur Tabi "changing MTU from %d to %d\n", netdev->mtu, 218b9b17debSTimur Tabi new_mtu); 219b9b17debSTimur Tabi netdev->mtu = new_mtu; 220b9b17debSTimur Tabi 221b9b17debSTimur Tabi if (netif_running(netdev)) 222b9b17debSTimur Tabi return emac_reinit_locked(adpt); 223b9b17debSTimur Tabi 224b9b17debSTimur Tabi return 0; 225b9b17debSTimur Tabi } 226b9b17debSTimur Tabi 227b9b17debSTimur Tabi /* Called when the network interface is made active */ 228b9b17debSTimur Tabi static int emac_open(struct net_device *netdev) 229b9b17debSTimur Tabi { 230b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 2314404323cSTimur Tabi struct emac_irq *irq = &adpt->irq; 232b9b17debSTimur Tabi int ret; 233b9b17debSTimur Tabi 2344404323cSTimur Tabi ret = request_irq(irq->irq, emac_isr, 0, "emac-core0", irq); 2354404323cSTimur Tabi if (ret) { 2364404323cSTimur Tabi netdev_err(adpt->netdev, "could not request emac-core0 irq\n"); 2374404323cSTimur Tabi return ret; 2384404323cSTimur Tabi } 2394404323cSTimur Tabi 240b9b17debSTimur Tabi /* allocate rx/tx dma buffer & descriptors */ 241b9b17debSTimur Tabi ret = emac_mac_rx_tx_rings_alloc_all(adpt); 242b9b17debSTimur Tabi if (ret) { 243b9b17debSTimur Tabi netdev_err(adpt->netdev, "error allocating rx/tx rings\n"); 2444404323cSTimur Tabi free_irq(irq->irq, irq); 245b9b17debSTimur Tabi return ret; 246b9b17debSTimur Tabi } 247b9b17debSTimur Tabi 2489e6881d3SHemanth Puranik ret = emac_sgmii_open(adpt); 249b9b17debSTimur Tabi if (ret) { 250b9b17debSTimur Tabi emac_mac_rx_tx_rings_free_all(adpt); 2514404323cSTimur Tabi free_irq(irq->irq, irq); 252b9b17debSTimur Tabi return ret; 253b9b17debSTimur Tabi } 254b9b17debSTimur Tabi 255ac3241d5SHemanth Puranik ret = emac_mac_up(adpt); 256fd0e97b8STimur Tabi if (ret) { 257fd0e97b8STimur Tabi emac_mac_rx_tx_rings_free_all(adpt); 258fd0e97b8STimur Tabi free_irq(irq->irq, irq); 2599e6881d3SHemanth Puranik emac_sgmii_close(adpt); 260fd0e97b8STimur Tabi return ret; 261fd0e97b8STimur Tabi } 262fd0e97b8STimur Tabi 263b9b17debSTimur Tabi return 0; 264b9b17debSTimur Tabi } 265b9b17debSTimur Tabi 266b9b17debSTimur Tabi /* Called when the network interface is disabled */ 267b9b17debSTimur Tabi static int emac_close(struct net_device *netdev) 268b9b17debSTimur Tabi { 269b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 270b9b17debSTimur Tabi 271b9b17debSTimur Tabi mutex_lock(&adpt->reset_lock); 272b9b17debSTimur Tabi 2739e6881d3SHemanth Puranik emac_sgmii_close(adpt); 274b9b17debSTimur Tabi emac_mac_down(adpt); 275b9b17debSTimur Tabi emac_mac_rx_tx_rings_free_all(adpt); 276b9b17debSTimur Tabi 2774404323cSTimur Tabi free_irq(adpt->irq.irq, &adpt->irq); 2784404323cSTimur Tabi 279b9b17debSTimur Tabi mutex_unlock(&adpt->reset_lock); 280b9b17debSTimur Tabi 281b9b17debSTimur Tabi return 0; 282b9b17debSTimur Tabi } 283b9b17debSTimur Tabi 284b9b17debSTimur Tabi /* Respond to a TX hang */ 2850290bd29SMichael S. Tsirkin static void emac_tx_timeout(struct net_device *netdev, unsigned int txqueue) 286b9b17debSTimur Tabi { 287b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 288b9b17debSTimur Tabi 289b9b17debSTimur Tabi schedule_work(&adpt->work_thread); 290b9b17debSTimur Tabi } 291b9b17debSTimur Tabi 29279f664edSTimur Tabi /** 29379f664edSTimur Tabi * emac_update_hw_stats - read the EMAC stat registers 29479f664edSTimur Tabi * 29579f664edSTimur Tabi * Reads the stats registers and write the values to adpt->stats. 29679f664edSTimur Tabi * 29779f664edSTimur Tabi * adpt->stats.lock must be held while calling this function, 29879f664edSTimur Tabi * and while reading from adpt->stats. 29979f664edSTimur Tabi */ 30079f664edSTimur Tabi void emac_update_hw_stats(struct emac_adapter *adpt) 301b9b17debSTimur Tabi { 302b9b17debSTimur Tabi struct emac_stats *stats = &adpt->stats; 303b9b17debSTimur Tabi u64 *stats_itr = &adpt->stats.rx_ok; 30479f664edSTimur Tabi void __iomem *base = adpt->base; 30579f664edSTimur Tabi unsigned int addr; 306b9b17debSTimur Tabi 30779f664edSTimur Tabi addr = REG_MAC_RX_STATUS_BIN; 308b9b17debSTimur Tabi while (addr <= REG_MAC_RX_STATUS_END) { 30979f664edSTimur Tabi *stats_itr += readl_relaxed(base + addr); 310b9b17debSTimur Tabi stats_itr++; 311b9b17debSTimur Tabi addr += sizeof(u32); 312b9b17debSTimur Tabi } 313b9b17debSTimur Tabi 314b9b17debSTimur Tabi /* additional rx status */ 31579f664edSTimur Tabi stats->rx_crc_align += readl_relaxed(base + EMAC_RXMAC_STATC_REG23); 31679f664edSTimur Tabi stats->rx_jabbers += readl_relaxed(base + EMAC_RXMAC_STATC_REG24); 317b9b17debSTimur Tabi 318b9b17debSTimur Tabi /* update tx status */ 319b9b17debSTimur Tabi addr = REG_MAC_TX_STATUS_BIN; 32079f664edSTimur Tabi stats_itr = &stats->tx_ok; 321b9b17debSTimur Tabi 322b9b17debSTimur Tabi while (addr <= REG_MAC_TX_STATUS_END) { 32379f664edSTimur Tabi *stats_itr += readl_relaxed(base + addr); 32479f664edSTimur Tabi stats_itr++; 325b9b17debSTimur Tabi addr += sizeof(u32); 326b9b17debSTimur Tabi } 327b9b17debSTimur Tabi 328b9b17debSTimur Tabi /* additional tx status */ 32979f664edSTimur Tabi stats->tx_col += readl_relaxed(base + EMAC_TXMAC_STATC_REG25); 33079f664edSTimur Tabi } 33179f664edSTimur Tabi 33279f664edSTimur Tabi /* Provide network statistics info for the interface */ 33379f664edSTimur Tabi static void emac_get_stats64(struct net_device *netdev, 33479f664edSTimur Tabi struct rtnl_link_stats64 *net_stats) 33579f664edSTimur Tabi { 33679f664edSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 33779f664edSTimur Tabi struct emac_stats *stats = &adpt->stats; 33879f664edSTimur Tabi 33979f664edSTimur Tabi spin_lock(&stats->lock); 34079f664edSTimur Tabi 34179f664edSTimur Tabi emac_update_hw_stats(adpt); 342b9b17debSTimur Tabi 343b9b17debSTimur Tabi /* return parsed statistics */ 344b9b17debSTimur Tabi net_stats->rx_packets = stats->rx_ok; 345b9b17debSTimur Tabi net_stats->tx_packets = stats->tx_ok; 346b9b17debSTimur Tabi net_stats->rx_bytes = stats->rx_byte_cnt; 347b9b17debSTimur Tabi net_stats->tx_bytes = stats->tx_byte_cnt; 348b9b17debSTimur Tabi net_stats->multicast = stats->rx_mcast; 349b9b17debSTimur Tabi net_stats->collisions = stats->tx_1_col + stats->tx_2_col * 2 + 350b9b17debSTimur Tabi stats->tx_late_col + stats->tx_abort_col; 351b9b17debSTimur Tabi 352b9b17debSTimur Tabi net_stats->rx_errors = stats->rx_frag + stats->rx_fcs_err + 353b9b17debSTimur Tabi stats->rx_len_err + stats->rx_sz_ov + 354b9b17debSTimur Tabi stats->rx_align_err; 355b9b17debSTimur Tabi net_stats->rx_fifo_errors = stats->rx_rxf_ov; 356b9b17debSTimur Tabi net_stats->rx_length_errors = stats->rx_len_err; 357b9b17debSTimur Tabi net_stats->rx_crc_errors = stats->rx_fcs_err; 358b9b17debSTimur Tabi net_stats->rx_frame_errors = stats->rx_align_err; 359b9b17debSTimur Tabi net_stats->rx_over_errors = stats->rx_rxf_ov; 360b9b17debSTimur Tabi net_stats->rx_missed_errors = stats->rx_rxf_ov; 361b9b17debSTimur Tabi 362b9b17debSTimur Tabi net_stats->tx_errors = stats->tx_late_col + stats->tx_abort_col + 363b9b17debSTimur Tabi stats->tx_underrun + stats->tx_trunc; 364b9b17debSTimur Tabi net_stats->tx_fifo_errors = stats->tx_underrun; 365b9b17debSTimur Tabi net_stats->tx_aborted_errors = stats->tx_abort_col; 366b9b17debSTimur Tabi net_stats->tx_window_errors = stats->tx_late_col; 367b9b17debSTimur Tabi 368b9b17debSTimur Tabi spin_unlock(&stats->lock); 369b9b17debSTimur Tabi } 370b9b17debSTimur Tabi 371b9b17debSTimur Tabi static const struct net_device_ops emac_netdev_ops = { 372b9b17debSTimur Tabi .ndo_open = emac_open, 373b9b17debSTimur Tabi .ndo_stop = emac_close, 374b9b17debSTimur Tabi .ndo_validate_addr = eth_validate_addr, 375b9b17debSTimur Tabi .ndo_start_xmit = emac_start_xmit, 376b9b17debSTimur Tabi .ndo_set_mac_address = eth_mac_addr, 377b9b17debSTimur Tabi .ndo_change_mtu = emac_change_mtu, 378fd786fb1SHeiner Kallweit .ndo_do_ioctl = phy_do_ioctl_running, 379b9b17debSTimur Tabi .ndo_tx_timeout = emac_tx_timeout, 380b9b17debSTimur Tabi .ndo_get_stats64 = emac_get_stats64, 381b9b17debSTimur Tabi .ndo_set_features = emac_set_features, 382b9b17debSTimur Tabi .ndo_set_rx_mode = emac_rx_mode_set, 383b9b17debSTimur Tabi }; 384b9b17debSTimur Tabi 385b9b17debSTimur Tabi /* Watchdog task routine, called to reinitialize the EMAC */ 386b9b17debSTimur Tabi static void emac_work_thread(struct work_struct *work) 387b9b17debSTimur Tabi { 388b9b17debSTimur Tabi struct emac_adapter *adpt = 389b9b17debSTimur Tabi container_of(work, struct emac_adapter, work_thread); 390b9b17debSTimur Tabi 391b9b17debSTimur Tabi emac_reinit_locked(adpt); 392b9b17debSTimur Tabi } 393b9b17debSTimur Tabi 394b9b17debSTimur Tabi /* Initialize various data structures */ 395b9b17debSTimur Tabi static void emac_init_adapter(struct emac_adapter *adpt) 396b9b17debSTimur Tabi { 397b9b17debSTimur Tabi u32 reg; 398b9b17debSTimur Tabi 399b44700e9STimur Tabi adpt->rrd_size = EMAC_RRD_SIZE; 400b44700e9STimur Tabi adpt->tpd_size = EMAC_TPD_SIZE; 401b44700e9STimur Tabi adpt->rfd_size = EMAC_RFD_SIZE; 402b44700e9STimur Tabi 403b9b17debSTimur Tabi /* descriptors */ 404b9b17debSTimur Tabi adpt->tx_desc_cnt = EMAC_DEF_TX_DESCS; 405b9b17debSTimur Tabi adpt->rx_desc_cnt = EMAC_DEF_RX_DESCS; 406b9b17debSTimur Tabi 407b9b17debSTimur Tabi /* dma */ 408b9b17debSTimur Tabi adpt->dma_order = emac_dma_ord_out; 409b9b17debSTimur Tabi adpt->dmar_block = emac_dma_req_4096; 410b9b17debSTimur Tabi adpt->dmaw_block = emac_dma_req_128; 411b9b17debSTimur Tabi adpt->dmar_dly_cnt = DMAR_DLY_CNT_DEF; 412b9b17debSTimur Tabi adpt->dmaw_dly_cnt = DMAW_DLY_CNT_DEF; 413b9b17debSTimur Tabi adpt->tpd_burst = TXQ0_NUM_TPD_PREF_DEF; 414b9b17debSTimur Tabi adpt->rfd_burst = RXQ0_NUM_RFD_PREF_DEF; 415b9b17debSTimur Tabi 416b9b17debSTimur Tabi /* irq moderator */ 417b9b17debSTimur Tabi reg = ((EMAC_DEF_RX_IRQ_MOD >> 1) << IRQ_MODERATOR2_INIT_SHFT) | 418b9b17debSTimur Tabi ((EMAC_DEF_TX_IRQ_MOD >> 1) << IRQ_MODERATOR_INIT_SHFT); 419b9b17debSTimur Tabi adpt->irq_mod = reg; 420b9b17debSTimur Tabi 421b9b17debSTimur Tabi /* others */ 422b9b17debSTimur Tabi adpt->preamble = EMAC_PREAMBLE_DEF; 423b44700e9STimur Tabi 424b44700e9STimur Tabi /* default to automatic flow control */ 425b44700e9STimur Tabi adpt->automatic = true; 4264a7a3860STimur Tabi 4274a7a3860STimur Tabi /* Disable single-pause-frame mode by default */ 4284a7a3860STimur Tabi adpt->single_pause_mode = false; 429b9b17debSTimur Tabi } 430b9b17debSTimur Tabi 431b9b17debSTimur Tabi /* Get the clock */ 432b9b17debSTimur Tabi static int emac_clks_get(struct platform_device *pdev, 433b9b17debSTimur Tabi struct emac_adapter *adpt) 434b9b17debSTimur Tabi { 435b9b17debSTimur Tabi unsigned int i; 436b9b17debSTimur Tabi 437b9b17debSTimur Tabi for (i = 0; i < EMAC_CLK_CNT; i++) { 438b9b17debSTimur Tabi struct clk *clk = devm_clk_get(&pdev->dev, emac_clk_name[i]); 439b9b17debSTimur Tabi 440b9b17debSTimur Tabi if (IS_ERR(clk)) { 441b9b17debSTimur Tabi dev_err(&pdev->dev, 442b9b17debSTimur Tabi "could not claim clock %s (error=%li)\n", 443b9b17debSTimur Tabi emac_clk_name[i], PTR_ERR(clk)); 444b9b17debSTimur Tabi 445b9b17debSTimur Tabi return PTR_ERR(clk); 446b9b17debSTimur Tabi } 447b9b17debSTimur Tabi 448b9b17debSTimur Tabi adpt->clk[i] = clk; 449b9b17debSTimur Tabi } 450b9b17debSTimur Tabi 451b9b17debSTimur Tabi return 0; 452b9b17debSTimur Tabi } 453b9b17debSTimur Tabi 454b9b17debSTimur Tabi /* Initialize clocks */ 455b9b17debSTimur Tabi static int emac_clks_phase1_init(struct platform_device *pdev, 456b9b17debSTimur Tabi struct emac_adapter *adpt) 457b9b17debSTimur Tabi { 458b9b17debSTimur Tabi int ret; 459b9b17debSTimur Tabi 460026acd5fSTimur Tabi /* On ACPI platforms, clocks are controlled by firmware and/or 461026acd5fSTimur Tabi * ACPI, not by drivers. 462026acd5fSTimur Tabi */ 463026acd5fSTimur Tabi if (has_acpi_companion(&pdev->dev)) 464026acd5fSTimur Tabi return 0; 465026acd5fSTimur Tabi 466b9b17debSTimur Tabi ret = emac_clks_get(pdev, adpt); 467b9b17debSTimur Tabi if (ret) 468b9b17debSTimur Tabi return ret; 469b9b17debSTimur Tabi 470b9b17debSTimur Tabi ret = clk_prepare_enable(adpt->clk[EMAC_CLK_AXI]); 471b9b17debSTimur Tabi if (ret) 472b9b17debSTimur Tabi return ret; 473b9b17debSTimur Tabi 474b9b17debSTimur Tabi ret = clk_prepare_enable(adpt->clk[EMAC_CLK_CFG_AHB]); 475b9b17debSTimur Tabi if (ret) 476b9b17debSTimur Tabi return ret; 477b9b17debSTimur Tabi 478b9b17debSTimur Tabi ret = clk_set_rate(adpt->clk[EMAC_CLK_HIGH_SPEED], 19200000); 479b9b17debSTimur Tabi if (ret) 480b9b17debSTimur Tabi return ret; 481b9b17debSTimur Tabi 482b9b17debSTimur Tabi return clk_prepare_enable(adpt->clk[EMAC_CLK_HIGH_SPEED]); 483b9b17debSTimur Tabi } 484b9b17debSTimur Tabi 485b9b17debSTimur Tabi /* Enable clocks; needs emac_clks_phase1_init to be called before */ 486b9b17debSTimur Tabi static int emac_clks_phase2_init(struct platform_device *pdev, 487b9b17debSTimur Tabi struct emac_adapter *adpt) 488b9b17debSTimur Tabi { 489b9b17debSTimur Tabi int ret; 490b9b17debSTimur Tabi 491026acd5fSTimur Tabi if (has_acpi_companion(&pdev->dev)) 492026acd5fSTimur Tabi return 0; 493026acd5fSTimur Tabi 494b9b17debSTimur Tabi ret = clk_set_rate(adpt->clk[EMAC_CLK_TX], 125000000); 495b9b17debSTimur Tabi if (ret) 496b9b17debSTimur Tabi return ret; 497b9b17debSTimur Tabi 498b9b17debSTimur Tabi ret = clk_prepare_enable(adpt->clk[EMAC_CLK_TX]); 499b9b17debSTimur Tabi if (ret) 500b9b17debSTimur Tabi return ret; 501b9b17debSTimur Tabi 502b9b17debSTimur Tabi ret = clk_set_rate(adpt->clk[EMAC_CLK_HIGH_SPEED], 125000000); 503b9b17debSTimur Tabi if (ret) 504b9b17debSTimur Tabi return ret; 505b9b17debSTimur Tabi 506b9b17debSTimur Tabi ret = clk_set_rate(adpt->clk[EMAC_CLK_MDIO], 25000000); 507b9b17debSTimur Tabi if (ret) 508b9b17debSTimur Tabi return ret; 509b9b17debSTimur Tabi 510b9b17debSTimur Tabi ret = clk_prepare_enable(adpt->clk[EMAC_CLK_MDIO]); 511b9b17debSTimur Tabi if (ret) 512b9b17debSTimur Tabi return ret; 513b9b17debSTimur Tabi 514b9b17debSTimur Tabi ret = clk_prepare_enable(adpt->clk[EMAC_CLK_RX]); 515b9b17debSTimur Tabi if (ret) 516b9b17debSTimur Tabi return ret; 517b9b17debSTimur Tabi 518b9b17debSTimur Tabi return clk_prepare_enable(adpt->clk[EMAC_CLK_SYS]); 519b9b17debSTimur Tabi } 520b9b17debSTimur Tabi 521b9b17debSTimur Tabi static void emac_clks_teardown(struct emac_adapter *adpt) 522b9b17debSTimur Tabi { 523b9b17debSTimur Tabi 524b9b17debSTimur Tabi unsigned int i; 525b9b17debSTimur Tabi 526b9b17debSTimur Tabi for (i = 0; i < EMAC_CLK_CNT; i++) 527b9b17debSTimur Tabi clk_disable_unprepare(adpt->clk[i]); 528b9b17debSTimur Tabi } 529b9b17debSTimur Tabi 530b9b17debSTimur Tabi /* Get the resources */ 531b9b17debSTimur Tabi static int emac_probe_resources(struct platform_device *pdev, 532b9b17debSTimur Tabi struct emac_adapter *adpt) 533b9b17debSTimur Tabi { 534b9b17debSTimur Tabi struct net_device *netdev = adpt->netdev; 5350de709acSTimur Tabi char maddr[ETH_ALEN]; 536b9b17debSTimur Tabi int ret = 0; 537b9b17debSTimur Tabi 538b9b17debSTimur Tabi /* get mac address */ 5390de709acSTimur Tabi if (device_get_mac_address(&pdev->dev, maddr, ETH_ALEN)) 540b9b17debSTimur Tabi ether_addr_copy(netdev->dev_addr, maddr); 5410de709acSTimur Tabi else 5420de709acSTimur Tabi eth_hw_addr_random(netdev); 543b9b17debSTimur Tabi 544b9b17debSTimur Tabi /* Core 0 interrupt */ 545b9b17debSTimur Tabi ret = platform_get_irq(pdev, 0); 546d1a55841SStephen Boyd if (ret < 0) 547b9b17debSTimur Tabi return ret; 548b9b17debSTimur Tabi adpt->irq.irq = ret; 549b9b17debSTimur Tabi 550b9b17debSTimur Tabi /* base register address */ 551c792c008SYueHaibing adpt->base = devm_platform_ioremap_resource(pdev, 0); 552b9b17debSTimur Tabi if (IS_ERR(adpt->base)) 553b9b17debSTimur Tabi return PTR_ERR(adpt->base); 554b9b17debSTimur Tabi 555b9b17debSTimur Tabi /* CSR register address */ 556c792c008SYueHaibing adpt->csr = devm_platform_ioremap_resource(pdev, 1); 557b9b17debSTimur Tabi if (IS_ERR(adpt->csr)) 558b9b17debSTimur Tabi return PTR_ERR(adpt->csr); 559b9b17debSTimur Tabi 560b9b17debSTimur Tabi netdev->base_addr = (unsigned long)adpt->base; 561b9b17debSTimur Tabi 562b9b17debSTimur Tabi return 0; 563b9b17debSTimur Tabi } 564b9b17debSTimur Tabi 565b9b17debSTimur Tabi static const struct of_device_id emac_dt_match[] = { 566b9b17debSTimur Tabi { 567b9b17debSTimur Tabi .compatible = "qcom,fsm9900-emac", 568b9b17debSTimur Tabi }, 569b9b17debSTimur Tabi {} 570b9b17debSTimur Tabi }; 57170972685SJavier Martinez Canillas MODULE_DEVICE_TABLE(of, emac_dt_match); 572b9b17debSTimur Tabi 5735f3d3807STimur Tabi #if IS_ENABLED(CONFIG_ACPI) 5745f3d3807STimur Tabi static const struct acpi_device_id emac_acpi_match[] = { 5755f3d3807STimur Tabi { 5765f3d3807STimur Tabi .id = "QCOM8070", 5775f3d3807STimur Tabi }, 5785f3d3807STimur Tabi {} 5795f3d3807STimur Tabi }; 5805f3d3807STimur Tabi MODULE_DEVICE_TABLE(acpi, emac_acpi_match); 5815f3d3807STimur Tabi #endif 5825f3d3807STimur Tabi 583b9b17debSTimur Tabi static int emac_probe(struct platform_device *pdev) 584b9b17debSTimur Tabi { 585b9b17debSTimur Tabi struct net_device *netdev; 586b9b17debSTimur Tabi struct emac_adapter *adpt; 58741c1093fSTimur Tabi struct emac_sgmii *phy; 588b9b17debSTimur Tabi u16 devid, revid; 589b9b17debSTimur Tabi u32 reg; 590b9b17debSTimur Tabi int ret; 591b9b17debSTimur Tabi 592df262dbdSWang Dongsheng /* The TPD buffer address is limited to: 593df262dbdSWang Dongsheng * 1. PTP: 45bits. (Driver doesn't support yet.) 594df262dbdSWang Dongsheng * 2. NON-PTP: 46bits. 595df262dbdSWang Dongsheng */ 596df262dbdSWang Dongsheng ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(46)); 597b9b17debSTimur Tabi if (ret) { 598b9b17debSTimur Tabi dev_err(&pdev->dev, "could not set DMA mask\n"); 599b9b17debSTimur Tabi return ret; 600b9b17debSTimur Tabi } 601b9b17debSTimur Tabi 602b9b17debSTimur Tabi netdev = alloc_etherdev(sizeof(struct emac_adapter)); 603b9b17debSTimur Tabi if (!netdev) 604b9b17debSTimur Tabi return -ENOMEM; 605b9b17debSTimur Tabi 606b9b17debSTimur Tabi dev_set_drvdata(&pdev->dev, netdev); 607b9b17debSTimur Tabi SET_NETDEV_DEV(netdev, &pdev->dev); 60879f664edSTimur Tabi emac_set_ethtool_ops(netdev); 609b9b17debSTimur Tabi 610b9b17debSTimur Tabi adpt = netdev_priv(netdev); 611b9b17debSTimur Tabi adpt->netdev = netdev; 612b9b17debSTimur Tabi adpt->msg_enable = EMAC_MSG_DEFAULT; 613b9b17debSTimur Tabi 614b9b17debSTimur Tabi phy = &adpt->phy; 615fd0e97b8STimur Tabi atomic_set(&phy->decode_error_count, 0); 616b9b17debSTimur Tabi 617b9b17debSTimur Tabi mutex_init(&adpt->reset_lock); 618b9b17debSTimur Tabi spin_lock_init(&adpt->stats.lock); 619b9b17debSTimur Tabi 620b9b17debSTimur Tabi adpt->irq.mask = RX_PKT_INT0 | IMR_NORMAL_MASK; 621b9b17debSTimur Tabi 622b9b17debSTimur Tabi ret = emac_probe_resources(pdev, adpt); 623b9b17debSTimur Tabi if (ret) 624b9b17debSTimur Tabi goto err_undo_netdev; 625b9b17debSTimur Tabi 626b9b17debSTimur Tabi /* initialize clocks */ 627b9b17debSTimur Tabi ret = emac_clks_phase1_init(pdev, adpt); 628b9b17debSTimur Tabi if (ret) { 629b9b17debSTimur Tabi dev_err(&pdev->dev, "could not initialize clocks\n"); 630b9b17debSTimur Tabi goto err_undo_netdev; 631b9b17debSTimur Tabi } 632b9b17debSTimur Tabi 633b9b17debSTimur Tabi netdev->watchdog_timeo = EMAC_WATCHDOG_TIME; 634b9b17debSTimur Tabi netdev->irq = adpt->irq.irq; 635b9b17debSTimur Tabi 636b9b17debSTimur Tabi netdev->netdev_ops = &emac_netdev_ops; 637b9b17debSTimur Tabi 638b9b17debSTimur Tabi emac_init_adapter(adpt); 639b9b17debSTimur Tabi 640b9b17debSTimur Tabi /* init external phy */ 641b9b17debSTimur Tabi ret = emac_phy_config(pdev, adpt); 642b9b17debSTimur Tabi if (ret) 643b9b17debSTimur Tabi goto err_undo_clocks; 644b9b17debSTimur Tabi 645b9b17debSTimur Tabi /* init internal sgmii phy */ 646b9b17debSTimur Tabi ret = emac_sgmii_config(pdev, adpt); 647b9b17debSTimur Tabi if (ret) 648b9b17debSTimur Tabi goto err_undo_mdiobus; 649b9b17debSTimur Tabi 650b9b17debSTimur Tabi /* enable clocks */ 651b9b17debSTimur Tabi ret = emac_clks_phase2_init(pdev, adpt); 652b9b17debSTimur Tabi if (ret) { 653b9b17debSTimur Tabi dev_err(&pdev->dev, "could not initialize clocks\n"); 654b9b17debSTimur Tabi goto err_undo_mdiobus; 655b9b17debSTimur Tabi } 656b9b17debSTimur Tabi 657b9b17debSTimur Tabi /* set hw features */ 658b9b17debSTimur Tabi netdev->features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_RXCSUM | 659b9b17debSTimur Tabi NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_HW_VLAN_CTAG_RX | 660b9b17debSTimur Tabi NETIF_F_HW_VLAN_CTAG_TX; 661b9b17debSTimur Tabi netdev->hw_features = netdev->features; 662b9b17debSTimur Tabi 663b9b17debSTimur Tabi netdev->vlan_features |= NETIF_F_SG | NETIF_F_HW_CSUM | 664b9b17debSTimur Tabi NETIF_F_TSO | NETIF_F_TSO6; 665b9b17debSTimur Tabi 666d894be57SJarod Wilson /* MTU range: 46 - 9194 */ 667d894be57SJarod Wilson netdev->min_mtu = EMAC_MIN_ETH_FRAME_SIZE - 668d894be57SJarod Wilson (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); 669d894be57SJarod Wilson netdev->max_mtu = EMAC_MAX_ETH_FRAME_SIZE - 670d894be57SJarod Wilson (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN); 671d894be57SJarod Wilson 672b9b17debSTimur Tabi INIT_WORK(&adpt->work_thread, emac_work_thread); 673b9b17debSTimur Tabi 674b9b17debSTimur Tabi /* Initialize queues */ 675b9b17debSTimur Tabi emac_mac_rx_tx_ring_init_all(pdev, adpt); 676b9b17debSTimur Tabi 677b9b17debSTimur Tabi netif_napi_add(netdev, &adpt->rx_q.napi, emac_napi_rtx, 678b9b17debSTimur Tabi NAPI_POLL_WEIGHT); 679b9b17debSTimur Tabi 680b9b17debSTimur Tabi ret = register_netdev(netdev); 681b9b17debSTimur Tabi if (ret) { 682b9b17debSTimur Tabi dev_err(&pdev->dev, "could not register net device\n"); 683b9b17debSTimur Tabi goto err_undo_napi; 684b9b17debSTimur Tabi } 685b9b17debSTimur Tabi 686b9b17debSTimur Tabi reg = readl_relaxed(adpt->base + EMAC_DMA_MAS_CTRL); 687b9b17debSTimur Tabi devid = (reg & DEV_ID_NUM_BMSK) >> DEV_ID_NUM_SHFT; 688b9b17debSTimur Tabi revid = (reg & DEV_REV_NUM_BMSK) >> DEV_REV_NUM_SHFT; 689b9b17debSTimur Tabi reg = readl_relaxed(adpt->base + EMAC_CORE_HW_VERSION); 690b9b17debSTimur Tabi 691b9b17debSTimur Tabi netif_info(adpt, probe, netdev, 692b9b17debSTimur Tabi "hardware id %d.%d, hardware version %d.%d.%d\n", 693b9b17debSTimur Tabi devid, revid, 694b9b17debSTimur Tabi (reg & MAJOR_BMSK) >> MAJOR_SHFT, 695b9b17debSTimur Tabi (reg & MINOR_BMSK) >> MINOR_SHFT, 696b9b17debSTimur Tabi (reg & STEP_BMSK) >> STEP_SHFT); 697b9b17debSTimur Tabi 698b9b17debSTimur Tabi return 0; 699b9b17debSTimur Tabi 700b9b17debSTimur Tabi err_undo_napi: 701b9b17debSTimur Tabi netif_napi_del(&adpt->rx_q.napi); 702b9b17debSTimur Tabi err_undo_mdiobus: 7036ffe1c4cSJohan Hovold put_device(&adpt->phydev->mdio.dev); 704b9b17debSTimur Tabi mdiobus_unregister(adpt->mii_bus); 705b9b17debSTimur Tabi err_undo_clocks: 706b9b17debSTimur Tabi emac_clks_teardown(adpt); 707b9b17debSTimur Tabi err_undo_netdev: 708b9b17debSTimur Tabi free_netdev(netdev); 709b9b17debSTimur Tabi 710b9b17debSTimur Tabi return ret; 711b9b17debSTimur Tabi } 712b9b17debSTimur Tabi 713b9b17debSTimur Tabi static int emac_remove(struct platform_device *pdev) 714b9b17debSTimur Tabi { 715b9b17debSTimur Tabi struct net_device *netdev = dev_get_drvdata(&pdev->dev); 716b9b17debSTimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 717b9b17debSTimur Tabi 718b9b17debSTimur Tabi unregister_netdev(netdev); 719b9b17debSTimur Tabi netif_napi_del(&adpt->rx_q.napi); 720b9b17debSTimur Tabi 721b9b17debSTimur Tabi emac_clks_teardown(adpt); 722b9b17debSTimur Tabi 7236ffe1c4cSJohan Hovold put_device(&adpt->phydev->mdio.dev); 724b9b17debSTimur Tabi mdiobus_unregister(adpt->mii_bus); 725b9b17debSTimur Tabi free_netdev(netdev); 726b9b17debSTimur Tabi 72754e19bc7STimur Tabi if (adpt->phy.digital) 72854e19bc7STimur Tabi iounmap(adpt->phy.digital); 72954e19bc7STimur Tabi iounmap(adpt->phy.base); 73054e19bc7STimur Tabi 731b9b17debSTimur Tabi return 0; 732b9b17debSTimur Tabi } 733b9b17debSTimur Tabi 73403eb3eb4STimur Tabi static void emac_shutdown(struct platform_device *pdev) 73503eb3eb4STimur Tabi { 73603eb3eb4STimur Tabi struct net_device *netdev = dev_get_drvdata(&pdev->dev); 73703eb3eb4STimur Tabi struct emac_adapter *adpt = netdev_priv(netdev); 73803eb3eb4STimur Tabi 739c98b0537STimur Tabi if (netdev->flags & IFF_UP) { 74003eb3eb4STimur Tabi /* Closing the SGMII turns off its interrupts */ 7419e6881d3SHemanth Puranik emac_sgmii_close(adpt); 74203eb3eb4STimur Tabi 74303eb3eb4STimur Tabi /* Resetting the MAC turns off all DMA and its interrupts */ 74403eb3eb4STimur Tabi emac_mac_reset(adpt); 74503eb3eb4STimur Tabi } 746c98b0537STimur Tabi } 74703eb3eb4STimur Tabi 748b9b17debSTimur Tabi static struct platform_driver emac_platform_driver = { 749b9b17debSTimur Tabi .probe = emac_probe, 750b9b17debSTimur Tabi .remove = emac_remove, 751b9b17debSTimur Tabi .driver = { 752b9b17debSTimur Tabi .name = "qcom-emac", 753b9b17debSTimur Tabi .of_match_table = emac_dt_match, 7545f3d3807STimur Tabi .acpi_match_table = ACPI_PTR(emac_acpi_match), 755b9b17debSTimur Tabi }, 75603eb3eb4STimur Tabi .shutdown = emac_shutdown, 757b9b17debSTimur Tabi }; 758b9b17debSTimur Tabi 759b9b17debSTimur Tabi module_platform_driver(emac_platform_driver); 760b9b17debSTimur Tabi 761b9b17debSTimur Tabi MODULE_LICENSE("GPL v2"); 762b9b17debSTimur Tabi MODULE_ALIAS("platform:qcom-emac"); 763