83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
209 lines
6.1 KiB
C
209 lines
6.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2011
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* eInfochips Ltd. <www.einfochips.com>
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* Written-by: Ajay Bhargav <contact@8051projects.net>
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*
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* (C) Copyright 2010
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* Marvell Semiconductor <www.marvell.com>
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* Contributor: Mahavir Jain <mjain@marvell.com>
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*/
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#ifndef __ARMADA100_FEC_H__
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#define __ARMADA100_FEC_H__
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#define PORT_NUM 0x0
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/* RX & TX descriptor command */
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#define BUF_OWNED_BY_DMA (1<<31)
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/* RX descriptor status */
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#define RX_EN_INT (1<<23)
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#define RX_FIRST_DESC (1<<17)
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#define RX_LAST_DESC (1<<16)
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#define RX_ERROR (1<<15)
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/* TX descriptor command */
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#define TX_EN_INT (1<<23)
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#define TX_GEN_CRC (1<<22)
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#define TX_ZERO_PADDING (1<<18)
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#define TX_FIRST_DESC (1<<17)
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#define TX_LAST_DESC (1<<16)
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#define TX_ERROR (1<<15)
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/* smi register */
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#define SMI_BUSY (1<<28) /* 0 - Write, 1 - Read */
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#define SMI_R_VALID (1<<27) /* 0 - Write, 1 - Read */
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#define SMI_OP_W (0<<26) /* Write operation */
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#define SMI_OP_R (1<<26) /* Read operation */
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#define HASH_ADD 0
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#define HASH_DELETE 1
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#define HASH_ADDR_TABLE_SIZE 0x4000 /* 16K (1/2K address - PCR_HS == 1) */
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#define HOP_NUMBER 12
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#define PHY_WAIT_ITERATIONS 1000 /* 1000 iterations * 10uS = 10mS max */
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#define PHY_WAIT_MICRO_SECONDS 10
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#define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */
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#define ETH_EXTRA_HEADER (6+6+2+4)
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/* dest+src addr+protocol id+crc */
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#define MAX_PKT_SIZE 1536
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/* Bit definitions of the SDMA Config Reg */
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#define SDCR_BSZ_OFF 12
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#define SDCR_BSZ8 (3<<SDCR_BSZ_OFF)
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#define SDCR_BSZ4 (2<<SDCR_BSZ_OFF)
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#define SDCR_BSZ2 (1<<SDCR_BSZ_OFF)
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#define SDCR_BSZ1 (0<<SDCR_BSZ_OFF)
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#define SDCR_BLMR (1<<6)
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#define SDCR_BLMT (1<<7)
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#define SDCR_RIFB (1<<9)
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#define SDCR_RC_OFF 2
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#define SDCR_RC_MAX_RETRANS (0xf << SDCR_RC_OFF)
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/* SDMA_CMD */
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#define SDMA_CMD_AT (1<<31)
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#define SDMA_CMD_TXDL (1<<24)
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#define SDMA_CMD_TXDH (1<<23)
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#define SDMA_CMD_AR (1<<15)
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#define SDMA_CMD_ERD (1<<7)
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/* Bit definitions of the Port Config Reg */
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#define PCR_HS (1<<12)
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#define PCR_EN (1<<7)
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#define PCR_PM (1<<0)
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/* Bit definitions of the Port Config Extend Reg */
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#define PCXR_2BSM (1<<28)
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#define PCXR_DSCP_EN (1<<21)
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#define PCXR_MFL_1518 (0<<14)
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#define PCXR_MFL_1536 (1<<14)
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#define PCXR_MFL_2048 (2<<14)
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#define PCXR_MFL_64K (3<<14)
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#define PCXR_FLP (1<<11)
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#define PCXR_PRIO_TX_OFF 3
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#define PCXR_TX_HIGH_PRI (7<<PCXR_PRIO_TX_OFF)
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/*
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* * Bit definitions of the Interrupt Cause Reg
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* * and Interrupt MASK Reg is the same
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* */
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#define ICR_RXBUF (1<<0)
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#define ICR_TXBUF_H (1<<2)
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#define ICR_TXBUF_L (1<<3)
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#define ICR_TXEND_H (1<<6)
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#define ICR_TXEND_L (1<<7)
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#define ICR_RXERR (1<<8)
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#define ICR_TXERR_H (1<<10)
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#define ICR_TXERR_L (1<<11)
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#define ICR_TX_UDR (1<<13)
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#define ICR_MII_CH (1<<28)
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#define ALL_INTS (ICR_TXBUF_H | ICR_TXBUF_L | ICR_TX_UDR |\
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ICR_TXERR_H | ICR_TXERR_L |\
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ICR_TXEND_H | ICR_TXEND_L |\
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ICR_RXBUF | ICR_RXERR | ICR_MII_CH)
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#define PHY_MASK 0x0000001f
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#define to_darmdfec(_kd) container_of(_kd, struct armdfec_device, dev)
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/* Size of a Tx/Rx descriptor used in chain list data structure */
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#define ARMDFEC_RXQ_DESC_ALIGNED_SIZE \
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(((sizeof(struct rx_desc) / PKTALIGN) + 1) * PKTALIGN)
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#define RX_BUF_OFFSET 0x2
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#define RXQ 0x0 /* RX Queue 0 */
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#define TXQ 0x1 /* TX Queue 1 */
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struct addr_table_entry_t {
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u32 lo;
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u32 hi;
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};
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/* Bit fields of a Hash Table Entry */
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enum hash_table_entry {
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HTEVALID = 1,
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HTESKIP = 2,
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HTERD = 4,
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HTERDBIT = 2
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};
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struct tx_desc {
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u32 cmd_sts; /* Command/status field */
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u16 reserved;
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u16 byte_cnt; /* buffer byte count */
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u8 *buf_ptr; /* pointer to buffer for this descriptor */
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struct tx_desc *nextdesc_p; /* Pointer to next descriptor */
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};
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struct rx_desc {
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u32 cmd_sts; /* Descriptor command status */
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u16 byte_cnt; /* Descriptor buffer byte count */
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u16 buf_size; /* Buffer size */
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u8 *buf_ptr; /* Descriptor buffer pointer */
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struct rx_desc *nxtdesc_p; /* Next descriptor pointer */
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};
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/*
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* Armada100 Fast Ethernet controller Registers
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* Refer Datasheet Appendix A.22
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*/
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struct armdfec_reg {
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u32 phyadr; /* PHY Address */
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u32 pad1[3];
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u32 smi; /* SMI */
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u32 pad2[0xFB];
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u32 pconf; /* Port configuration */
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u32 pad3;
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u32 pconf_ext; /* Port configuration extend */
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u32 pad4;
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u32 pcmd; /* Port Command */
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u32 pad5;
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u32 pstatus; /* Port Status */
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u32 pad6;
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u32 spar; /* Serial Parameters */
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u32 pad7;
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u32 htpr; /* Hash table pointer */
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u32 pad8;
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u32 fcsal; /* Flow control source address low */
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u32 pad9;
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u32 fcsah; /* Flow control source address high */
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u32 pad10;
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u32 sdma_conf; /* SDMA configuration */
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u32 pad11;
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u32 sdma_cmd; /* SDMA command */
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u32 pad12;
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u32 ic; /* Interrupt cause */
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u32 iwc; /* Interrupt write to clear */
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u32 im; /* Interrupt mask */
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u32 pad13;
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u32 *eth_idscpp[4]; /* Eth0 IP Differentiated Services Code
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Point to Priority 0 Low */
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u32 eth_vlan_p; /* Eth0 VLAN Priority Tag to Priority */
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u32 pad14[3];
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struct rx_desc *rxfdp[4]; /* Ethernet First Rx Descriptor
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Pointer */
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u32 pad15[4];
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struct rx_desc *rxcdp[4]; /* Ethernet Current Rx Descriptor
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Pointer */
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u32 pad16[0x0C];
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struct tx_desc *txcdp[2]; /* Ethernet Current Tx Descriptor
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Pointer */
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};
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struct armdfec_device {
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struct eth_device dev;
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struct armdfec_reg *regs;
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struct tx_desc *p_txdesc;
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struct rx_desc *p_rxdesc;
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struct rx_desc *p_rxdesc_curr;
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u8 *p_rxbuf;
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u8 *p_aligned_txbuf;
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u8 *htpr; /* hash pointer */
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};
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#endif /* __ARMADA100_FEC_H__ */
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