1 #ifndef FS_ENET_H 2 #define FS_ENET_H 3 4 #include <linux/mii.h> 5 #include <linux/netdevice.h> 6 #include <linux/types.h> 7 #include <linux/list.h> 8 #include <linux/phy.h> 9 #include <linux/dma-mapping.h> 10 11 #include <linux/fs_enet_pd.h> 12 #include <asm/fs_pd.h> 13 14 #ifdef CONFIG_CPM1 15 #include <asm/cpm1.h> 16 #endif 17 18 #if defined(CONFIG_FS_ENET_HAS_FEC) 19 #include <asm/cpm.h> 20 21 #if defined(CONFIG_FS_ENET_MPC5121_FEC) 22 /* MPC5121 FEC has different register layout */ 23 struct fec { 24 u32 fec_reserved0; 25 u32 fec_ievent; /* Interrupt event reg */ 26 u32 fec_imask; /* Interrupt mask reg */ 27 u32 fec_reserved1; 28 u32 fec_r_des_active; /* Receive descriptor reg */ 29 u32 fec_x_des_active; /* Transmit descriptor reg */ 30 u32 fec_reserved2[3]; 31 u32 fec_ecntrl; /* Ethernet control reg */ 32 u32 fec_reserved3[6]; 33 u32 fec_mii_data; /* MII manage frame reg */ 34 u32 fec_mii_speed; /* MII speed control reg */ 35 u32 fec_reserved4[7]; 36 u32 fec_mib_ctrlstat; /* MIB control/status reg */ 37 u32 fec_reserved5[7]; 38 u32 fec_r_cntrl; /* Receive control reg */ 39 u32 fec_reserved6[15]; 40 u32 fec_x_cntrl; /* Transmit Control reg */ 41 u32 fec_reserved7[7]; 42 u32 fec_addr_low; /* Low 32bits MAC address */ 43 u32 fec_addr_high; /* High 16bits MAC address */ 44 u32 fec_opd; /* Opcode + Pause duration */ 45 u32 fec_reserved8[10]; 46 u32 fec_hash_table_high; /* High 32bits hash table */ 47 u32 fec_hash_table_low; /* Low 32bits hash table */ 48 u32 fec_grp_hash_table_high; /* High 32bits hash table */ 49 u32 fec_grp_hash_table_low; /* Low 32bits hash table */ 50 u32 fec_reserved9[7]; 51 u32 fec_x_wmrk; /* FIFO transmit water mark */ 52 u32 fec_reserved10; 53 u32 fec_r_bound; /* FIFO receive bound reg */ 54 u32 fec_r_fstart; /* FIFO receive start reg */ 55 u32 fec_reserved11[11]; 56 u32 fec_r_des_start; /* Receive descriptor ring */ 57 u32 fec_x_des_start; /* Transmit descriptor ring */ 58 u32 fec_r_buff_size; /* Maximum receive buff size */ 59 u32 fec_reserved12[26]; 60 u32 fec_dma_control; /* DMA Endian and other ctrl */ 61 }; 62 #endif 63 64 struct fec_info { 65 struct fec __iomem *fecp; 66 u32 mii_speed; 67 }; 68 #endif 69 70 #ifdef CONFIG_CPM2 71 #include <asm/cpm2.h> 72 #endif 73 74 /* hw driver ops */ 75 struct fs_ops { 76 int (*setup_data)(struct net_device *dev); 77 int (*allocate_bd)(struct net_device *dev); 78 void (*free_bd)(struct net_device *dev); 79 void (*cleanup_data)(struct net_device *dev); 80 void (*set_multicast_list)(struct net_device *dev); 81 void (*adjust_link)(struct net_device *dev); 82 void (*restart)(struct net_device *dev); 83 void (*stop)(struct net_device *dev); 84 void (*napi_clear_rx_event)(struct net_device *dev); 85 void (*napi_enable_rx)(struct net_device *dev); 86 void (*napi_disable_rx)(struct net_device *dev); 87 void (*napi_clear_tx_event)(struct net_device *dev); 88 void (*napi_enable_tx)(struct net_device *dev); 89 void (*napi_disable_tx)(struct net_device *dev); 90 void (*rx_bd_done)(struct net_device *dev); 91 void (*tx_kickstart)(struct net_device *dev); 92 u32 (*get_int_events)(struct net_device *dev); 93 void (*clear_int_events)(struct net_device *dev, u32 int_events); 94 void (*ev_error)(struct net_device *dev, u32 int_events); 95 int (*get_regs)(struct net_device *dev, void *p, int *sizep); 96 int (*get_regs_len)(struct net_device *dev); 97 void (*tx_restart)(struct net_device *dev); 98 }; 99 100 struct phy_info { 101 unsigned int id; 102 const char *name; 103 void (*startup) (struct net_device * dev); 104 void (*shutdown) (struct net_device * dev); 105 void (*ack_int) (struct net_device * dev); 106 }; 107 108 /* The FEC stores dest/src/type, data, and checksum for receive packets. 109 */ 110 #define MAX_MTU 1508 /* Allow fullsized pppoe packets over VLAN */ 111 #define MIN_MTU 46 /* this is data size */ 112 #define CRC_LEN 4 113 114 #define PKT_MAXBUF_SIZE (MAX_MTU+ETH_HLEN+CRC_LEN) 115 #define PKT_MINBUF_SIZE (MIN_MTU+ETH_HLEN+CRC_LEN) 116 117 /* Must be a multiple of 32 (to cover both FEC & FCC) */ 118 #define PKT_MAXBLR_SIZE ((PKT_MAXBUF_SIZE + 31) & ~31) 119 /* This is needed so that invalidate_xxx wont invalidate too much */ 120 #define ENET_RX_ALIGN 16 121 #define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1) 122 123 struct fs_enet_private { 124 struct napi_struct napi; 125 struct napi_struct napi_tx; 126 struct device *dev; /* pointer back to the device (must be initialized first) */ 127 struct net_device *ndev; 128 spinlock_t lock; /* during all ops except TX pckt processing */ 129 spinlock_t tx_lock; /* during fs_start_xmit and fs_tx */ 130 struct fs_platform_info *fpi; 131 const struct fs_ops *ops; 132 int rx_ring, tx_ring; 133 dma_addr_t ring_mem_addr; 134 void __iomem *ring_base; 135 struct sk_buff **rx_skbuff; 136 struct sk_buff **tx_skbuff; 137 char *mapped_as_page; 138 cbd_t __iomem *rx_bd_base; /* Address of Rx and Tx buffers. */ 139 cbd_t __iomem *tx_bd_base; 140 cbd_t __iomem *dirty_tx; /* ring entries to be free()ed. */ 141 cbd_t __iomem *cur_rx; 142 cbd_t __iomem *cur_tx; 143 int tx_free; 144 struct net_device_stats stats; 145 struct timer_list phy_timer_list; 146 const struct phy_info *phy; 147 u32 msg_enable; 148 struct mii_if_info mii_if; 149 unsigned int last_mii_status; 150 int interrupt; 151 152 int oldduplex, oldspeed, oldlink; /* current settings */ 153 154 /* event masks */ 155 u32 ev_napi_rx; /* mask of NAPI rx events */ 156 u32 ev_napi_tx; /* mask of NAPI rx events */ 157 u32 ev_rx; /* rx event mask */ 158 u32 ev_tx; /* tx event mask */ 159 u32 ev_err; /* error event mask */ 160 161 u16 bd_rx_empty; /* mask of BD rx empty */ 162 u16 bd_rx_err; /* mask of BD rx errors */ 163 164 union { 165 struct { 166 int idx; /* FEC1 = 0, FEC2 = 1 */ 167 void __iomem *fecp; /* hw registers */ 168 u32 hthi, htlo; /* state for multicast */ 169 } fec; 170 171 struct { 172 int idx; /* FCC1-3 = 0-2 */ 173 void __iomem *fccp; /* hw registers */ 174 void __iomem *ep; /* parameter ram */ 175 void __iomem *fcccp; /* hw registers cont. */ 176 void __iomem *mem; /* FCC DPRAM */ 177 u32 gaddrh, gaddrl; /* group address */ 178 } fcc; 179 180 struct { 181 int idx; /* FEC1 = 0, FEC2 = 1 */ 182 void __iomem *sccp; /* hw registers */ 183 void __iomem *ep; /* parameter ram */ 184 u32 hthi, htlo; /* state for multicast */ 185 } scc; 186 187 }; 188 }; 189 190 /***************************************************************************/ 191 192 void fs_init_bds(struct net_device *dev); 193 void fs_cleanup_bds(struct net_device *dev); 194 195 /***************************************************************************/ 196 197 #define DRV_MODULE_NAME "fs_enet" 198 #define PFX DRV_MODULE_NAME ": " 199 #define DRV_MODULE_VERSION "1.1" 200 #define DRV_MODULE_RELDATE "Sep 22, 2014" 201 202 /***************************************************************************/ 203 204 int fs_enet_platform_init(void); 205 void fs_enet_platform_cleanup(void); 206 207 /***************************************************************************/ 208 /* buffer descriptor access macros */ 209 210 /* access macros */ 211 #if defined(CONFIG_CPM1) 212 /* for a a CPM1 __raw_xxx's are sufficient */ 213 #define __cbd_out32(addr, x) __raw_writel(x, addr) 214 #define __cbd_out16(addr, x) __raw_writew(x, addr) 215 #define __cbd_in32(addr) __raw_readl(addr) 216 #define __cbd_in16(addr) __raw_readw(addr) 217 #else 218 /* for others play it safe */ 219 #define __cbd_out32(addr, x) out_be32(addr, x) 220 #define __cbd_out16(addr, x) out_be16(addr, x) 221 #define __cbd_in32(addr) in_be32(addr) 222 #define __cbd_in16(addr) in_be16(addr) 223 #endif 224 225 /* write */ 226 #define CBDW_SC(_cbd, _sc) __cbd_out16(&(_cbd)->cbd_sc, (_sc)) 227 #define CBDW_DATLEN(_cbd, _datlen) __cbd_out16(&(_cbd)->cbd_datlen, (_datlen)) 228 #define CBDW_BUFADDR(_cbd, _bufaddr) __cbd_out32(&(_cbd)->cbd_bufaddr, (_bufaddr)) 229 230 /* read */ 231 #define CBDR_SC(_cbd) __cbd_in16(&(_cbd)->cbd_sc) 232 #define CBDR_DATLEN(_cbd) __cbd_in16(&(_cbd)->cbd_datlen) 233 #define CBDR_BUFADDR(_cbd) __cbd_in32(&(_cbd)->cbd_bufaddr) 234 235 /* set bits */ 236 #define CBDS_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) | (_sc)) 237 238 /* clear bits */ 239 #define CBDC_SC(_cbd, _sc) CBDW_SC(_cbd, CBDR_SC(_cbd) & ~(_sc)) 240 241 /*******************************************************************/ 242 243 extern const struct fs_ops fs_fec_ops; 244 extern const struct fs_ops fs_fcc_ops; 245 extern const struct fs_ops fs_scc_ops; 246 247 /*******************************************************************/ 248 249 #endif 250