diff options
Diffstat (limited to 'roms/u-boot/drivers/net/altera_tse.h')
-rw-r--r-- | roms/u-boot/drivers/net/altera_tse.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/net/altera_tse.h b/roms/u-boot/drivers/net/altera_tse.h new file mode 100644 index 000000000..79509b808 --- /dev/null +++ b/roms/u-boot/drivers/net/altera_tse.h @@ -0,0 +1,232 @@ +/* + * Altera 10/100/1000 triple speed ethernet mac + * + * Copyright (C) 2008 Altera Corporation. + * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _ALTERA_TSE_H_ +#define _ALTERA_TSE_H_ + +#include <linux/bitops.h> +#define __packed_1_ __packed __aligned(1) + +/* dma type */ +#define ALT_SGDMA 0 +#define ALT_MSGDMA 1 + +/* SGDMA Stuff */ +#define ALT_SGDMA_STATUS_BUSY_MSK BIT(4) + +#define ALT_SGDMA_CONTROL_RUN_MSK BIT(5) +#define ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK BIT(6) +#define ALT_SGDMA_CONTROL_SOFTWARERESET_MSK BIT(16) + +/* + * Descriptor control bit masks & offsets + * + * Note: The control byte physically occupies bits [31:24] in memory. + * The following bit-offsets are expressed relative to the LSB of + * the control register bitfield. + */ +#define ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK BIT(0) +#define ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK BIT(1) +#define ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK BIT(2) +#define ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK BIT(7) + +/* + * Descriptor status bit masks & offsets + * + * Note: The status byte physically occupies bits [23:16] in memory. + * The following bit-offsets are expressed relative to the LSB of + * the status register bitfield. + */ +#define ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK BIT(7) + +/* + * The SGDMA controller buffer descriptor allocates + * 64 bits for each address. To support ANSI C, the + * struct implementing a descriptor places 32-bits + * of padding directly above each address; each pad must + * be cleared when initializing a descriptor. + */ + +/* + * Buffer Descriptor data structure + * + */ +struct alt_sgdma_descriptor { + u32 source; /* the address of data to be read. */ + u32 source_pad; + + u32 destination; /* the address to write data */ + u32 destination_pad; + + u32 next; /* the next descriptor in the list. */ + u32 next_pad; + + u16 bytes_to_transfer; /* the number of bytes to transfer */ + u8 read_burst; + u8 write_burst; + + u16 actual_bytes_transferred;/* bytes transferred by DMA */ + u8 descriptor_status; + u8 descriptor_control; + +} __packed_1_; + +/* SG-DMA Control/Status Slave registers map */ + +struct alt_sgdma_registers { + u32 status; + u32 status_pad[3]; + u32 control; + u32 control_pad[3]; + u32 next_descriptor_pointer; + u32 descriptor_pad[3]; +}; + +/* mSGDMA Stuff */ + +/* mSGDMA extended descriptor format */ +struct msgdma_extended_desc { + u32 read_addr_lo; /* data buffer source address low bits */ + u32 write_addr_lo; /* data buffer destination address low bits */ + u32 len; + u32 burst_seq_num; + u32 stride; + u32 read_addr_hi; /* data buffer source address high bits */ + u32 write_addr_hi; /* data buffer destination address high bits */ + u32 control; /* characteristics of the transfer */ +}; + +/* mSGDMA descriptor control field bit definitions */ +#define MSGDMA_DESC_CTL_GEN_SOP BIT(8) +#define MSGDMA_DESC_CTL_GEN_EOP BIT(9) +#define MSGDMA_DESC_CTL_END_ON_EOP BIT(12) +#define MSGDMA_DESC_CTL_END_ON_LEN BIT(13) +#define MSGDMA_DESC_CTL_GO BIT(31) + +/* Tx buffer control flags */ +#define MSGDMA_DESC_CTL_TX_SINGLE (MSGDMA_DESC_CTL_GEN_SOP | \ + MSGDMA_DESC_CTL_GEN_EOP | \ + MSGDMA_DESC_CTL_GO) + +#define MSGDMA_DESC_CTL_RX_SINGLE (MSGDMA_DESC_CTL_END_ON_EOP | \ + MSGDMA_DESC_CTL_END_ON_LEN | \ + MSGDMA_DESC_CTL_GO) + +/* mSGDMA extended descriptor stride definitions */ +#define MSGDMA_DESC_TX_STRIDE 0x00010001 +#define MSGDMA_DESC_RX_STRIDE 0x00010001 + +/* mSGDMA dispatcher control and status register map */ +struct msgdma_csr { + u32 status; /* Read/Clear */ + u32 control; /* Read/Write */ + u32 rw_fill_level; + u32 resp_fill_level; /* bit 15:0 */ + u32 rw_seq_num; + u32 pad[3]; /* reserved */ +}; + +/* mSGDMA CSR status register bit definitions */ +#define MSGDMA_CSR_STAT_BUSY BIT(0) +#define MSGDMA_CSR_STAT_RESETTING BIT(6) +#define MSGDMA_CSR_STAT_MASK 0x3FF + +/* mSGDMA CSR control register bit definitions */ +#define MSGDMA_CSR_CTL_RESET BIT(1) + +/* mSGDMA response register map */ +struct msgdma_response { + u32 bytes_transferred; + u32 status; +}; + +/* TSE Stuff */ +#define ALTERA_TSE_CMD_TX_ENA_MSK BIT(0) +#define ALTERA_TSE_CMD_RX_ENA_MSK BIT(1) +#define ALTERA_TSE_CMD_ETH_SPEED_MSK BIT(3) +#define ALTERA_TSE_CMD_HD_ENA_MSK BIT(10) +#define ALTERA_TSE_CMD_SW_RESET_MSK BIT(13) +#define ALTERA_TSE_CMD_ENA_10_MSK BIT(25) + +#define ALT_TSE_SW_RESET_TIMEOUT (3 * CONFIG_SYS_HZ) +#define ALT_TSE_SGDMA_BUSY_TIMEOUT (3 * CONFIG_SYS_HZ) + +/* MAC register Space */ + +struct alt_tse_mac { + u32 megacore_revision; + u32 scratch_pad; + u32 command_config; + u32 mac_addr_0; + u32 mac_addr_1; + u32 max_frame_length; + u32 pause_quanta; + u32 rx_sel_empty_threshold; + u32 rx_sel_full_threshold; + u32 tx_sel_empty_threshold; + u32 tx_sel_full_threshold; + u32 rx_almost_empty_threshold; + u32 rx_almost_full_threshold; + u32 tx_almost_empty_threshold; + u32 tx_almost_full_threshold; + u32 mdio_phy0_addr; + u32 mdio_phy1_addr; + + u32 reserved1[0x29]; + + /*FIFO control register. */ + u32 tx_cmd_stat; + u32 rx_cmd_stat; + + u32 reserved2[0x44]; + + /*Registers 0 to 31 within PHY device 0/1 */ + u32 mdio_phy0[0x20]; + u32 mdio_phy1[0x20]; + + /*4 Supplemental MAC Addresses */ + u32 supp_mac_addr_0_0; + u32 supp_mac_addr_0_1; + u32 supp_mac_addr_1_0; + u32 supp_mac_addr_1_1; + u32 supp_mac_addr_2_0; + u32 supp_mac_addr_2_1; + u32 supp_mac_addr_3_0; + u32 supp_mac_addr_3_1; + + u32 reserved3[0x38]; +}; + +struct tse_ops { + int (*send)(struct udevice *dev, void *packet, int length); + int (*recv)(struct udevice *dev, int flags, uchar **packetp); + int (*free_pkt)(struct udevice *dev, uchar *packet, int length); + void (*stop)(struct udevice *dev); +}; + +struct altera_tse_priv { + struct alt_tse_mac *mac_dev; + void *sgdma_rx; + void *sgdma_tx; + unsigned int rx_fifo_depth; + unsigned int tx_fifo_depth; + void *rx_desc; + void *tx_desc; + void *rx_resp; + unsigned char *rx_buf; + unsigned int phyaddr; + unsigned int interface; + struct phy_device *phydev; + struct mii_dev *bus; + const struct tse_ops *ops; + int dma_type; +}; + +#endif /* _ALTERA_TSE_H_ */ |