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 RT305X_RESET_FE BIT(21)
26 #define RT305X_RESET_ESW BIT(23)
27 #define SYSC_REG_RESET_CTRL 0x034
29 static const u32 rt5350_reg_table
[FE_REG_COUNT
] = {
30 [FE_REG_PDMA_GLO_CFG
] = RT5350_PDMA_GLO_CFG
,
31 [FE_REG_PDMA_RST_CFG
] = RT5350_PDMA_RST_CFG
,
32 [FE_REG_DLY_INT_CFG
] = RT5350_DLY_INT_CFG
,
33 [FE_REG_TX_BASE_PTR0
] = RT5350_TX_BASE_PTR0
,
34 [FE_REG_TX_MAX_CNT0
] = RT5350_TX_MAX_CNT0
,
35 [FE_REG_TX_CTX_IDX0
] = RT5350_TX_CTX_IDX0
,
36 [FE_REG_RX_BASE_PTR0
] = RT5350_RX_BASE_PTR0
,
37 [FE_REG_RX_MAX_CNT0
] = RT5350_RX_MAX_CNT0
,
38 [FE_REG_RX_CALC_IDX0
] = RT5350_RX_CALC_IDX0
,
39 [FE_REG_FE_INT_ENABLE
] = RT5350_FE_INT_ENABLE
,
40 [FE_REG_FE_INT_STATUS
] = RT5350_FE_INT_STATUS
,
41 [FE_REG_FE_RST_GL
] = 0,
42 [FE_REG_FE_DMA_VID_BASE
] = 0,
45 static void rt305x_init_data(struct fe_soc_data
*data
,
46 struct net_device
*netdev
)
48 struct fe_priv
*priv
= netdev_priv(netdev
);
50 priv
->flags
= FE_FLAG_PADDING_64B
| FE_FLAG_PADDING_BUG
;
51 netdev
->hw_features
= NETIF_F_SG
| NETIF_F_IP_CSUM
|
52 NETIF_F_RXCSUM
| NETIF_F_HW_VLAN_CTAG_TX
;
55 static int rt3050_fwd_config(struct fe_priv
*priv
)
59 if (ralink_soc
!= RT305X_SOC_RT3052
) {
60 ret
= fe_set_clock_cycle(priv
);
66 if (ralink_soc
!= RT305X_SOC_RT3352
)
67 fe_w32(FE_PSE_FQFC_CFG_INIT
, FE_PSE_FQ_CFG
);
73 static void rt305x_fe_reset(void)
75 rt_sysc_w32(RT305X_RESET_FE
, SYSC_REG_RESET_CTRL
);
76 rt_sysc_w32(0, SYSC_REG_RESET_CTRL
);
79 static void rt5350_init_data(struct fe_soc_data
*data
,
80 struct net_device
*netdev
)
82 netdev
->hw_features
= NETIF_F_SG
| NETIF_F_RXCSUM
;
85 static void rt5350_set_mac(struct fe_priv
*priv
, unsigned char *mac
)
89 spin_lock_irqsave(&priv
->page_lock
, flags
);
90 fe_w32((mac
[0] << 8) | mac
[1], RT5350_SDM_MAC_ADRH
);
91 fe_w32((mac
[2] << 24) | (mac
[3] << 16) | (mac
[4] << 8) | mac
[5],
93 spin_unlock_irqrestore(&priv
->page_lock
, flags
);
96 static void rt5350_rxcsum_config(bool enable
)
99 fe_w32(fe_r32(RT5350_SDM_CFG
) | (RT5350_SDM_ICS_EN
|
100 RT5350_SDM_TCS_EN
| RT5350_SDM_UCS_EN
),
103 fe_w32(fe_r32(RT5350_SDM_CFG
) & ~(RT5350_SDM_ICS_EN
|
104 RT5350_SDM_TCS_EN
| RT5350_SDM_UCS_EN
),
108 static int rt5350_fwd_config(struct fe_priv
*priv
)
110 struct net_device
*dev
= priv_netdev(priv
);
112 rt5350_rxcsum_config((dev
->features
& NETIF_F_RXCSUM
));
117 static void rt5350_tx_dma(struct fe_priv
*priv
, int idx
, struct sk_buff
*skb
)
119 priv
->tx_dma
[idx
].txd4
= 0;
122 static void rt5350_fe_reset(void)
124 rt_sysc_w32(RT305X_RESET_FE
| RT305X_RESET_ESW
, SYSC_REG_RESET_CTRL
);
125 rt_sysc_w32(0, SYSC_REG_RESET_CTRL
);
128 static struct fe_soc_data rt3050_data
= {
129 .mac
= { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
130 .init_data
= rt305x_init_data
,
131 .reset_fe
= rt305x_fe_reset
,
132 .fwd_config
= rt3050_fwd_config
,
133 .pdma_glo_cfg
= FE_PDMA_SIZE_8DWORDS
,
134 .checksum_bit
= RX_DMA_L4VALID
,
135 .tx_udf_bit
= TX_DMA_UDF
,
136 .rx_dly_int
= FE_RX_DLY_INT
,
137 .tx_dly_int
= FE_TX_DLY_INT
,
140 static struct fe_soc_data rt5350_data
= {
141 .mac
= { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55 },
142 .init_data
= rt5350_init_data
,
143 .reg_table
= rt5350_reg_table
,
144 .reset_fe
= rt5350_fe_reset
,
145 .set_mac
= rt5350_set_mac
,
146 .fwd_config
= rt5350_fwd_config
,
147 .tx_dma
= rt5350_tx_dma
,
148 .pdma_glo_cfg
= FE_PDMA_SIZE_8DWORDS
,
149 .checksum_bit
= RX_DMA_L4VALID
,
150 .tx_udf_bit
= TX_DMA_UDF
,
151 .rx_dly_int
= RT5350_RX_DLY_INT
,
152 .tx_dly_int
= RT5350_TX_DLY_INT
,
155 const struct of_device_id of_fe_match
[] = {
156 { .compatible
= "ralink,rt3050-eth", .data
= &rt3050_data
},
157 { .compatible
= "ralink,rt5350-eth", .data
= &rt5350_data
},
161 MODULE_DEVICE_TABLE(of
, of_fe_match
);