2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; version 2 of the License
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
15 * Copyright (C) 2009-2013 John Crispin <blogic@openwrt.org>
18 #include <linux/module.h>
20 #include <asm/mach-ralink/ralink_regs.h>
22 #include "ralink_soc_eth.h"
23 #include "mdio_rt2880.h"
25 #define RT3883_SYSC_REG_RSTCTRL 0x34
26 #define RT3883_RSTCTRL_FE BIT(21)
28 static void rt3883_fe_reset(void)
32 t = rt_sysc_r32(RT3883_SYSC_REG_RSTCTRL);
33 t |= RT3883_RSTCTRL_FE;
34 rt_sysc_w32(t , RT3883_SYSC_REG_RSTCTRL);
36 t &= ~RT3883_RSTCTRL_FE;
37 rt_sysc_w32(t, RT3883_SYSC_REG_RSTCTRL);
40 static int rt3883_fwd_config(struct fe_priv *priv)
44 ret = fe_set_clock_cycle(priv);
49 fe_w32(FE_PSE_FQFC_CFG_256Q, FE_PSE_FQ_CFG);
55 static void rt3883_init_data(struct fe_soc_data *data,
56 struct net_device *netdev)
58 struct fe_priv *priv = netdev_priv(netdev);
60 priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_PADDING_BUG |
62 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
63 NETIF_F_RXCSUM | NETIF_F_HW_VLAN_CTAG_TX;
66 static struct fe_soc_data rt3883_data = {
67 .mac = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
68 .init_data = rt3883_init_data,
69 .reset_fe = rt3883_fe_reset,
70 .fwd_config = rt3883_fwd_config,
71 .pdma_glo_cfg = FE_PDMA_SIZE_8DWORDS,
72 .rx_dly_int = FE_RX_DLY_INT,
73 .tx_dly_int = FE_TX_DLY_INT,
74 .checksum_bit = RX_DMA_L4VALID,
75 .tx_udf_bit = TX_DMA_UDF,
76 .mdio_read = rt2880_mdio_read,
77 .mdio_write = rt2880_mdio_write,
78 .mdio_adjust_link = rt2880_mdio_link_adjust,
79 .port_init = rt2880_port_init,
82 const struct of_device_id of_fe_match[] = {
83 { .compatible = "ralink,rt3883-eth", .data = &rt3883_data },
87 MODULE_DEVICE_TABLE(of, of_fe_match);