[J-u-boot.git] / drivers / net / armada100_fec.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * (C) Copyright 2011
 * eInfochips Ltd. <www.einfochips.com>
 * Written-by: Ajay Bhargav <[email protected]>
 *
 * (C) Copyright 2010
 * Marvell Semiconductor <www.marvell.com>
 * Contributor: Mahavir Jain <[email protected]>
 */

#ifndef __ARMADA100_FEC_H__
#define __ARMADA100_FEC_H__

#define PORT_NUM		0x0

/* RX & TX descriptor command */
#define BUF_OWNED_BY_DMA        (1<<31)

/* RX descriptor status */
#define RX_EN_INT               (1<<23)
#define RX_FIRST_DESC           (1<<17)
#define RX_LAST_DESC            (1<<16)
#define RX_ERROR                (1<<15)

/* TX descriptor command */
#define TX_EN_INT               (1<<23)
#define TX_GEN_CRC              (1<<22)
#define TX_ZERO_PADDING         (1<<18)
#define TX_FIRST_DESC           (1<<17)
#define TX_LAST_DESC            (1<<16)
#define TX_ERROR                (1<<15)

/* smi register */
#define SMI_BUSY                (1<<28)	/* 0 - Write, 1 - Read  */
#define SMI_R_VALID             (1<<27)	/* 0 - Write, 1 - Read  */
#define SMI_OP_W                (0<<26)	/* Write operation      */
#define SMI_OP_R                (1<<26)	/* Read operation */

#define HASH_ADD                0
#define HASH_DELETE             1
#define HASH_ADDR_TABLE_SIZE    0x4000	/* 16K (1/2K address - PCR_HS == 1) */
#define HOP_NUMBER              12

#define PHY_WAIT_ITERATIONS     1000	/* 1000 iterations * 10uS = 10mS max */
#define PHY_WAIT_MICRO_SECONDS  10

#define ETH_HW_IP_ALIGN         2	/* hw aligns IP header */
#define ETH_EXTRA_HEADER        (6+6+2+4)
					/* dest+src addr+protocol id+crc */
#define MAX_PKT_SIZE            1536


/* Bit definitions of the SDMA Config Reg */
#define SDCR_BSZ_OFF            12
#define SDCR_BSZ8               (3<<SDCR_BSZ_OFF)
#define SDCR_BSZ4               (2<<SDCR_BSZ_OFF)
#define SDCR_BSZ2               (1<<SDCR_BSZ_OFF)
#define SDCR_BSZ1               (0<<SDCR_BSZ_OFF)
#define SDCR_BLMR               (1<<6)
#define SDCR_BLMT               (1<<7)
#define SDCR_RIFB               (1<<9)
#define SDCR_RC_OFF             2
#define SDCR_RC_MAX_RETRANS     (0xf << SDCR_RC_OFF)

/* SDMA_CMD */
#define SDMA_CMD_AT             (1<<31)
#define SDMA_CMD_TXDL           (1<<24)
#define SDMA_CMD_TXDH           (1<<23)
#define SDMA_CMD_AR             (1<<15)
#define SDMA_CMD_ERD            (1<<7)


/* Bit definitions of the Port Config Reg */
#define PCR_HS                  (1<<12)
#define PCR_EN                  (1<<7)
#define PCR_PM                  (1<<0)

/* Bit definitions of the Port Config Extend Reg */
#define PCXR_2BSM               (1<<28)
#define PCXR_DSCP_EN            (1<<21)
#define PCXR_MFL_1518           (0<<14)
#define PCXR_MFL_1536           (1<<14)
#define PCXR_MFL_2048           (2<<14)
#define PCXR_MFL_64K            (3<<14)
#define PCXR_FLP                (1<<11)
#define PCXR_PRIO_TX_OFF        3
#define PCXR_TX_HIGH_PRI        (7<<PCXR_PRIO_TX_OFF)

/*
 *  * Bit definitions of the Interrupt Cause Reg
 *   * and Interrupt MASK Reg is the same
 *    */
#define ICR_RXBUF               (1<<0)
#define ICR_TXBUF_H             (1<<2)
#define ICR_TXBUF_L             (1<<3)
#define ICR_TXEND_H             (1<<6)
#define ICR_TXEND_L             (1<<7)
#define ICR_RXERR               (1<<8)
#define ICR_TXERR_H             (1<<10)
#define ICR_TXERR_L             (1<<11)
#define ICR_TX_UDR              (1<<13)
#define ICR_MII_CH              (1<<28)

#define ALL_INTS (ICR_TXBUF_H  | ICR_TXBUF_L  | ICR_TX_UDR |\
				ICR_TXERR_H  | ICR_TXERR_L |\
				ICR_TXEND_H  | ICR_TXEND_L |\
				ICR_RXBUF | ICR_RXERR  | ICR_MII_CH)

#define PHY_MASK               0x0000001f

#define to_darmdfec(_kd) container_of(_kd, struct armdfec_device, dev)
/* Size of a Tx/Rx descriptor used in chain list data structure */
#define ARMDFEC_RXQ_DESC_ALIGNED_SIZE \
	(((sizeof(struct rx_desc) / PKTALIGN) + 1) * PKTALIGN)

#define RX_BUF_OFFSET		0x2
#define RXQ			0x0	/* RX Queue 0 */
#define TXQ			0x1	/* TX Queue 1 */

struct addr_table_entry_t {
	u32 lo;
	u32 hi;
};

/* Bit fields of a Hash Table Entry */
enum hash_table_entry {
	HTEVALID = 1,
	HTESKIP = 2,
	HTERD = 4,
	HTERDBIT = 2
};

struct tx_desc {
	u32 cmd_sts;		/* Command/status field */
	u16 reserved;
	u16 byte_cnt;		/* buffer byte count */
	u8 *buf_ptr;		/* pointer to buffer for this descriptor */
	struct tx_desc *nextdesc_p;	/* Pointer to next descriptor */
};

struct rx_desc {
	u32 cmd_sts;		/* Descriptor command status */
	u16 byte_cnt;		/* Descriptor buffer byte count */
	u16 buf_size;		/* Buffer size */
	u8 *buf_ptr;		/* Descriptor buffer pointer */
	struct rx_desc *nxtdesc_p;	/* Next descriptor pointer */
};

/*
 * Armada100 Fast Ethernet controller Registers
 * Refer Datasheet Appendix A.22
 */
struct armdfec_reg {
	u32 phyadr;			/* PHY Address */
	u32 pad1[3];
	u32 smi;			/* SMI */
	u32 pad2[0xFB];
	u32 pconf;			/* Port configuration */
	u32 pad3;
	u32 pconf_ext;			/* Port configuration extend */
	u32 pad4;
	u32 pcmd;			/* Port Command */
	u32 pad5;
	u32 pstatus;			/* Port Status */
	u32 pad6;
	u32 spar;			/* Serial Parameters */
	u32 pad7;
	u32 htpr;			/* Hash table pointer */
	u32 pad8;
	u32 fcsal;			/* Flow control source address low */
	u32 pad9;
	u32 fcsah;			/* Flow control source address high */
	u32 pad10;
	u32 sdma_conf;			/* SDMA configuration */
	u32 pad11;
	u32 sdma_cmd;			/* SDMA command */
	u32 pad12;
	u32 ic;				/* Interrupt cause */
	u32 iwc;			/* Interrupt write to clear */
	u32 im;				/* Interrupt mask */
	u32 pad13;
	u32 *eth_idscpp[4];		/* Eth0 IP Differentiated Services Code
					   Point to Priority 0 Low */
	u32 eth_vlan_p;			/* Eth0 VLAN Priority Tag to Priority */
	u32 pad14[3];
	struct rx_desc *rxfdp[4];	/* Ethernet First Rx Descriptor
					   Pointer */
	u32 pad15[4];
	struct rx_desc *rxcdp[4];	/* Ethernet Current Rx Descriptor
					   Pointer */
	u32 pad16[0x0C];
	struct tx_desc *txcdp[2];	/* Ethernet Current Tx Descriptor
					   Pointer */
};

struct armdfec_device {
	struct eth_device dev;
	struct armdfec_reg *regs;
	struct tx_desc *p_txdesc;
	struct rx_desc *p_rxdesc;
	struct rx_desc *p_rxdesc_curr;
	u8 *p_rxbuf;
	u8 *p_aligned_txbuf;
	u8 *htpr;		/* hash pointer */
};

#endif /* __ARMADA100_FEC_H__ */
Commit	Line	Data
83d290c5	1	/* SPDX-License-Identifier: GPL-2.0+ */
79788bb1 AB	2	/*
	3	* (C) Copyright 2011
	4	* eInfochips Ltd. <www.einfochips.com>
c7c47ca2	5	* Written-by: Ajay Bhargav <[email protected]>
79788bb1 AB	6	*
	7	* (C) Copyright 2010
	8	* Marvell Semiconductor <www.marvell.com>
	9	* Contributor: Mahavir Jain <[email protected]>
79788bb1 AB	10	*/
	11
	12	#ifndef __ARMADA100_FEC_H__
	13	#define __ARMADA100_FEC_H__
	14
79788bb1 AB	15	#define PORT_NUM 0x0
	16
	17	/* RX & TX descriptor command */
	18	#define BUF_OWNED_BY_DMA (1<<31)
	19
	20	/* RX descriptor status */
	21	#define RX_EN_INT (1<<23)
	22	#define RX_FIRST_DESC (1<<17)
	23	#define RX_LAST_DESC (1<<16)
	24	#define RX_ERROR (1<<15)
	25
	26	/* TX descriptor command */
	27	#define TX_EN_INT (1<<23)
	28	#define TX_GEN_CRC (1<<22)
	29	#define TX_ZERO_PADDING (1<<18)
	30	#define TX_FIRST_DESC (1<<17)
	31	#define TX_LAST_DESC (1<<16)
	32	#define TX_ERROR (1<<15)
	33
	34	/* smi register */
	35	#define SMI_BUSY (1<<28) /* 0 - Write, 1 - Read */
	36	#define SMI_R_VALID (1<<27) /* 0 - Write, 1 - Read */
	37	#define SMI_OP_W (0<<26) /* Write operation */
	38	#define SMI_OP_R (1<<26) /* Read operation */
	39
	40	#define HASH_ADD 0
	41	#define HASH_DELETE 1
	42	#define HASH_ADDR_TABLE_SIZE 0x4000 /* 16K (1/2K address - PCR_HS == 1) */
	43	#define HOP_NUMBER 12
	44
	45	#define PHY_WAIT_ITERATIONS 1000 /* 1000 iterations * 10uS = 10mS max */
	46	#define PHY_WAIT_MICRO_SECONDS 10
	47
	48	#define ETH_HW_IP_ALIGN 2 /* hw aligns IP header */
	49	#define ETH_EXTRA_HEADER (6+6+2+4)
	50	/* dest+src addr+protocol id+crc */
	51	#define MAX_PKT_SIZE 1536
	52
	53
	54	/* Bit definitions of the SDMA Config Reg */
	55	#define SDCR_BSZ_OFF 12
	56	#define SDCR_BSZ8 (3<<SDCR_BSZ_OFF)
	57	#define SDCR_BSZ4 (2<<SDCR_BSZ_OFF)
	58	#define SDCR_BSZ2 (1<<SDCR_BSZ_OFF)
	59	#define SDCR_BSZ1 (0<<SDCR_BSZ_OFF)
	60	#define SDCR_BLMR (1<<6)
	61	#define SDCR_BLMT (1<<7)
	62	#define SDCR_RIFB (1<<9)
	63	#define SDCR_RC_OFF 2
	64	#define SDCR_RC_MAX_RETRANS (0xf << SDCR_RC_OFF)
	65
	66	/* SDMA_CMD */
	67	#define SDMA_CMD_AT (1<<31)
	68	#define SDMA_CMD_TXDL (1<<24)
	69	#define SDMA_CMD_TXDH (1<<23)
	70	#define SDMA_CMD_AR (1<<15)
	71	#define SDMA_CMD_ERD (1<<7)
	72
	73
	74	/* Bit definitions of the Port Config Reg */
	75	#define PCR_HS (1<<12)
	76	#define PCR_EN (1<<7)
	77	#define PCR_PM (1<<0)
	78
79	/* Bit definitions of the Port Config Extend Reg */
80	#define PCXR_2BSM (1<<28)
81	#define PCXR_DSCP_EN (1<<21)
82	#define PCXR_MFL_1518 (0<<14)
83	#define PCXR_MFL_1536 (1<<14)
84	#define PCXR_MFL_2048 (2<<14)
85	#define PCXR_MFL_64K (3<<14)
86	#define PCXR_FLP (1<<11)
87	#define PCXR_PRIO_TX_OFF 3
88	#define PCXR_TX_HIGH_PRI (7<<PCXR_PRIO_TX_OFF)
89
90	/*
91	* * Bit definitions of the Interrupt Cause Reg
92	* * and Interrupt MASK Reg is the same
93	* */
94	#define ICR_RXBUF (1<<0)
95	#define ICR_TXBUF_H (1<<2)
96	#define ICR_TXBUF_L (1<<3)
97	#define ICR_TXEND_H (1<<6)
98	#define ICR_TXEND_L (1<<7)
99	#define ICR_RXERR (1<<8)
100	#define ICR_TXERR_H (1<<10)
101	#define ICR_TXERR_L (1<<11)
102	#define ICR_TX_UDR (1<<13)
103	#define ICR_MII_CH (1<<28)
104
105	#define ALL_INTS (ICR_TXBUF_H \| ICR_TXBUF_L \| ICR_TX_UDR \|\
106	ICR_TXERR_H \| ICR_TXERR_L \|\
107	ICR_TXEND_H \| ICR_TXEND_L \|\
108	ICR_RXBUF \| ICR_RXERR \| ICR_MII_CH)
109
110	#define PHY_MASK 0x0000001f
111
112	#define to_darmdfec(_kd) container_of(_kd, struct armdfec_device, dev)
113	/* Size of a Tx/Rx descriptor used in chain list data structure */
114	#define ARMDFEC_RXQ_DESC_ALIGNED_SIZE \
115	(((sizeof(struct rx_desc) / PKTALIGN) + 1) * PKTALIGN)
116
117	#define RX_BUF_OFFSET 0x2
118	#define RXQ 0x0 /* RX Queue 0 */
119	#define TXQ 0x1 /* TX Queue 1 */
120
121	struct addr_table_entry_t {
122	u32 lo;
123	u32 hi;
124	};
125
126	/* Bit fields of a Hash Table Entry */
127	enum hash_table_entry {
128	HTEVALID = 1,
129	HTESKIP = 2,
130	HTERD = 4,
131	HTERDBIT = 2
132	};
133
134	struct tx_desc {
135	u32 cmd_sts; /* Command/status field */
136	u16 reserved;
137	u16 byte_cnt; /* buffer byte count */
138	u8 buf_ptr; / pointer to buffer for this descriptor */
139	struct tx_desc nextdesc_p; / Pointer to next descriptor */
140	};
141
142	struct rx_desc {
143	u32 cmd_sts; /* Descriptor command status */
144	u16 byte_cnt; /* Descriptor buffer byte count */
145	u16 buf_size; /* Buffer size */
146	u8 buf_ptr; / Descriptor buffer pointer */
147	struct rx_desc nxtdesc_p; / Next descriptor pointer */
148	};
149
150	/*
151	* Armada100 Fast Ethernet controller Registers
152	* Refer Datasheet Appendix A.22
153	*/
154	struct armdfec_reg {
155	u32 phyadr; /* PHY Address */
156	u32 pad1[3];
157	u32 smi; /* SMI */
158	u32 pad2[0xFB];
159	u32 pconf; /* Port configuration */
160	u32 pad3;
161	u32 pconf_ext; /* Port configuration extend */
162	u32 pad4;
163	u32 pcmd; /* Port Command */
164	u32 pad5;
165	u32 pstatus; /* Port Status */
166	u32 pad6;
167	u32 spar; /* Serial Parameters */
168	u32 pad7;
169	u32 htpr; /* Hash table pointer */
170	u32 pad8;
171	u32 fcsal; /* Flow control source address low */
172	u32 pad9;
173	u32 fcsah; /* Flow control source address high */
174	u32 pad10;
175	u32 sdma_conf; /* SDMA configuration */
176	u32 pad11;
177	u32 sdma_cmd; /* SDMA command */
178	u32 pad12;
179	u32 ic; /* Interrupt cause */
180	u32 iwc; /* Interrupt write to clear */
181	u32 im; /* Interrupt mask */
182	u32 pad13;
183	u32 eth_idscpp[4]; / Eth0 IP Differentiated Services Code
184	Point to Priority 0 Low */
185	u32 eth_vlan_p; /* Eth0 VLAN Priority Tag to Priority */
186	u32 pad14[3];
187	struct rx_desc rxfdp[4]; / Ethernet First Rx Descriptor
188	Pointer */
189	u32 pad15[4];
190	struct rx_desc rxcdp[4]; / Ethernet Current Rx Descriptor
191	Pointer */
192	u32 pad16[0x0C];
193	struct tx_desc txcdp[2]; / Ethernet Current Tx Descriptor
194	Pointer */
195	};
196
197	struct armdfec_device {
198	struct eth_device dev;
199	struct armdfec_reg *regs;
200	struct tx_desc *p_txdesc;
201	struct rx_desc *p_rxdesc;
202	struct rx_desc *p_rxdesc_curr;
203	u8 *p_rxbuf;
204	u8 *p_aligned_txbuf;
205	u8 htpr; / hash pointer */
206	};
207
208	#endif /* __ARMADA100_FEC_H__ */