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141 lines
3.5 KiB
141 lines
3.5 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef GRETH_H |
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#define GRETH_H |
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#include <linux/phy.h> |
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/* Register bits and masks */ |
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#define GRETH_RESET 0x40 |
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#define GRETH_MII_BUSY 0x8 |
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#define GRETH_MII_NVALID 0x10 |
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#define GRETH_CTRL_FD 0x10 |
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#define GRETH_CTRL_PR 0x20 |
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#define GRETH_CTRL_SP 0x80 |
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#define GRETH_CTRL_GB 0x100 |
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#define GRETH_CTRL_PSTATIEN 0x400 |
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#define GRETH_CTRL_MCEN 0x800 |
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#define GRETH_CTRL_DISDUPLEX 0x1000 |
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#define GRETH_STATUS_PHYSTAT 0x100 |
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#define GRETH_BD_EN 0x800 |
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#define GRETH_BD_WR 0x1000 |
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#define GRETH_BD_IE 0x2000 |
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#define GRETH_BD_LEN 0x7FF |
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#define GRETH_TXEN 0x1 |
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#define GRETH_INT_TE 0x2 |
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#define GRETH_INT_TX 0x8 |
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#define GRETH_TXI 0x4 |
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#define GRETH_TXBD_STATUS 0x0001C000 |
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#define GRETH_TXBD_MORE 0x20000 |
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#define GRETH_TXBD_IPCS 0x40000 |
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#define GRETH_TXBD_TCPCS 0x80000 |
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#define GRETH_TXBD_UDPCS 0x100000 |
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#define GRETH_TXBD_CSALL (GRETH_TXBD_IPCS | GRETH_TXBD_TCPCS | GRETH_TXBD_UDPCS) |
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#define GRETH_TXBD_ERR_LC 0x10000 |
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#define GRETH_TXBD_ERR_UE 0x4000 |
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#define GRETH_TXBD_ERR_AL 0x8000 |
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#define GRETH_INT_RE 0x1 |
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#define GRETH_INT_RX 0x4 |
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#define GRETH_RXEN 0x2 |
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#define GRETH_RXI 0x8 |
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#define GRETH_RXBD_STATUS 0xFFFFC000 |
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#define GRETH_RXBD_ERR_AE 0x4000 |
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#define GRETH_RXBD_ERR_FT 0x8000 |
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#define GRETH_RXBD_ERR_CRC 0x10000 |
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#define GRETH_RXBD_ERR_OE 0x20000 |
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#define GRETH_RXBD_ERR_LE 0x40000 |
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#define GRETH_RXBD_IP 0x80000 |
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#define GRETH_RXBD_IP_CSERR 0x100000 |
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#define GRETH_RXBD_UDP 0x200000 |
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#define GRETH_RXBD_UDP_CSERR 0x400000 |
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#define GRETH_RXBD_TCP 0x800000 |
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#define GRETH_RXBD_TCP_CSERR 0x1000000 |
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#define GRETH_RXBD_IP_FRAG 0x2000000 |
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#define GRETH_RXBD_MCAST 0x4000000 |
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/* Descriptor parameters */ |
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#define GRETH_TXBD_NUM 128 |
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#define GRETH_TXBD_NUM_MASK (GRETH_TXBD_NUM-1) |
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#define GRETH_TX_BUF_SIZE 2048 |
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#define GRETH_RXBD_NUM 128 |
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#define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1) |
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#define GRETH_RX_BUF_SIZE 2048 |
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/* Buffers per page */ |
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#define GRETH_RX_BUF_PPGAE (PAGE_SIZE/GRETH_RX_BUF_SIZE) |
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#define GRETH_TX_BUF_PPGAE (PAGE_SIZE/GRETH_TX_BUF_SIZE) |
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/* How many pages are needed for buffers */ |
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#define GRETH_RX_BUF_PAGE_NUM (GRETH_RXBD_NUM/GRETH_RX_BUF_PPGAE) |
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#define GRETH_TX_BUF_PAGE_NUM (GRETH_TXBD_NUM/GRETH_TX_BUF_PPGAE) |
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/* Buffer size. |
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* Gbit MAC uses tagged maximum frame size which is 1518 excluding CRC. |
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* Set to 1520 to make all buffers word aligned for non-gbit MAC. |
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*/ |
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#define MAX_FRAME_SIZE 1520 |
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/* GRETH APB registers */ |
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struct greth_regs { |
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u32 control; |
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u32 status; |
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u32 esa_msb; |
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u32 esa_lsb; |
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u32 mdio; |
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u32 tx_desc_p; |
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u32 rx_desc_p; |
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u32 edclip; |
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u32 hash_msb; |
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u32 hash_lsb; |
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}; |
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/* GRETH buffer descriptor */ |
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struct greth_bd { |
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u32 stat; |
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u32 addr; |
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}; |
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struct greth_private { |
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struct sk_buff *rx_skbuff[GRETH_RXBD_NUM]; |
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struct sk_buff *tx_skbuff[GRETH_TXBD_NUM]; |
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unsigned char *tx_bufs[GRETH_TXBD_NUM]; |
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unsigned char *rx_bufs[GRETH_RXBD_NUM]; |
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u16 tx_bufs_length[GRETH_TXBD_NUM]; |
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u16 tx_next; |
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u16 tx_last; |
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u16 tx_free; /* only used on 10/100Mbit */ |
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u16 rx_cur; |
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struct greth_regs *regs; /* Address of controller registers. */ |
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struct greth_bd *rx_bd_base; /* Address of Rx BDs. */ |
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struct greth_bd *tx_bd_base; /* Address of Tx BDs. */ |
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dma_addr_t rx_bd_base_phys; |
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dma_addr_t tx_bd_base_phys; |
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int irq; |
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struct device *dev; /* Pointer to platform_device->dev */ |
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struct net_device *netdev; |
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struct napi_struct napi; |
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spinlock_t devlock; |
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struct mii_bus *mdio; |
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unsigned int link; |
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unsigned int speed; |
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unsigned int duplex; |
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u32 msg_enable; |
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u8 phyaddr; |
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u8 multicast; |
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u8 gbit_mac; |
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u8 mdio_int_en; |
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u8 edcl; |
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}; |
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#endif
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