xref: /openbmc/u-boot/drivers/net/designware.h (revision 95de1e2f) 
1 /*
2  * (C) Copyright 2010
3  * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #ifndef _DW_ETH_H
9 #define _DW_ETH_H
10 
11 #define CONFIG_TX_DESCR_NUM	16
12 #define CONFIG_RX_DESCR_NUM	16
13 #define CONFIG_ETH_BUFSIZE	2048
14 #define TX_TOTAL_BUFSIZE	(CONFIG_ETH_BUFSIZE * CONFIG_TX_DESCR_NUM)
15 #define RX_TOTAL_BUFSIZE	(CONFIG_ETH_BUFSIZE * CONFIG_RX_DESCR_NUM)
16 
17 #define CONFIG_MACRESET_TIMEOUT	(3 * CONFIG_SYS_HZ)
18 #define CONFIG_MDIO_TIMEOUT	(3 * CONFIG_SYS_HZ)
19 
20 struct eth_mac_regs {
21 	u32 conf;		/* 0x00 */
22 	u32 framefilt;		/* 0x04 */
23 	u32 hashtablehigh;	/* 0x08 */
24 	u32 hashtablelow;	/* 0x0c */
25 	u32 miiaddr;		/* 0x10 */
26 	u32 miidata;		/* 0x14 */
27 	u32 flowcontrol;	/* 0x18 */
28 	u32 vlantag;		/* 0x1c */
29 	u32 version;		/* 0x20 */
30 	u8 reserved_1[20];
31 	u32 intreg;		/* 0x38 */
32 	u32 intmask;		/* 0x3c */
33 	u32 macaddr0hi;		/* 0x40 */
34 	u32 macaddr0lo;		/* 0x44 */
35 };
36 
37 /* MAC configuration register definitions */
38 #define FRAMEBURSTENABLE	(1 << 21)
39 #define MII_PORTSELECT		(1 << 15)
40 #define FES_100			(1 << 14)
41 #define DISABLERXOWN		(1 << 13)
42 #define FULLDPLXMODE		(1 << 11)
43 #define RXENABLE		(1 << 2)
44 #define TXENABLE		(1 << 3)
45 
46 /* MII address register definitions */
47 #define MII_BUSY		(1 << 0)
48 #define MII_WRITE		(1 << 1)
49 #define MII_CLKRANGE_60_100M	(0)
50 #define MII_CLKRANGE_100_150M	(0x4)
51 #define MII_CLKRANGE_20_35M	(0x8)
52 #define MII_CLKRANGE_35_60M	(0xC)
53 #define MII_CLKRANGE_150_250M	(0x10)
54 #define MII_CLKRANGE_250_300M	(0x14)
55 
56 #define MIIADDRSHIFT		(11)
57 #define MIIREGSHIFT		(6)
58 #define MII_REGMSK		(0x1F << 6)
59 #define MII_ADDRMSK		(0x1F << 11)
60 
61 
62 struct eth_dma_regs {
63 	u32 busmode;		/* 0x00 */
64 	u32 txpolldemand;	/* 0x04 */
65 	u32 rxpolldemand;	/* 0x08 */
66 	u32 rxdesclistaddr;	/* 0x0c */
67 	u32 txdesclistaddr;	/* 0x10 */
68 	u32 status;		/* 0x14 */
69 	u32 opmode;		/* 0x18 */
70 	u32 intenable;		/* 0x1c */
71 	u32 reserved1[2];
72 	u32 axibus;		/* 0x28 */
73 	u32 reserved2[7];
74 	u32 currhosttxdesc;	/* 0x48 */
75 	u32 currhostrxdesc;	/* 0x4c */
76 	u32 currhosttxbuffaddr;	/* 0x50 */
77 	u32 currhostrxbuffaddr;	/* 0x54 */
78 };
79 
80 #define DW_DMA_BASE_OFFSET	(0x1000)
81 
82 /* Default DMA Burst length */
83 #ifndef CONFIG_DW_GMAC_DEFAULT_DMA_PBL
84 #define CONFIG_DW_GMAC_DEFAULT_DMA_PBL 8
85 #endif
86 
87 /* Bus mode register definitions */
88 #define FIXEDBURST		(1 << 16)
89 #define PRIORXTX_41		(3 << 14)
90 #define PRIORXTX_31		(2 << 14)
91 #define PRIORXTX_21		(1 << 14)
92 #define PRIORXTX_11		(0 << 14)
93 #define DMA_PBL			(CONFIG_DW_GMAC_DEFAULT_DMA_PBL<<8)
94 #define RXHIGHPRIO		(1 << 1)
95 #define DMAMAC_SRST		(1 << 0)
96 
97 /* Poll demand definitions */
98 #define POLL_DATA		(0xFFFFFFFF)
99 
100 /* Operation mode definitions */
101 #define STOREFORWARD		(1 << 21)
102 #define FLUSHTXFIFO		(1 << 20)
103 #define TXSTART			(1 << 13)
104 #define TXSECONDFRAME		(1 << 2)
105 #define RXSTART			(1 << 1)
106 
107 /* Descriptior related definitions */
108 #define MAC_MAX_FRAME_SZ	(1600)
109 
110 struct dmamacdescr {
111 	u32 txrx_status;
112 	u32 dmamac_cntl;
113 	void *dmamac_addr;
114 	struct dmamacdescr *dmamac_next;
115 } __aligned(ARCH_DMA_MINALIGN);
116 
117 /*
118  * txrx_status definitions
119  */
120 
121 /* tx status bits definitions */
122 #if defined(CONFIG_DW_ALTDESCRIPTOR)
123 
124 #define DESC_TXSTS_OWNBYDMA		(1 << 31)
125 #define DESC_TXSTS_TXINT		(1 << 30)
126 #define DESC_TXSTS_TXLAST		(1 << 29)
127 #define DESC_TXSTS_TXFIRST		(1 << 28)
128 #define DESC_TXSTS_TXCRCDIS		(1 << 27)
129 
130 #define DESC_TXSTS_TXPADDIS		(1 << 26)
131 #define DESC_TXSTS_TXCHECKINSCTRL	(3 << 22)
132 #define DESC_TXSTS_TXRINGEND		(1 << 21)
133 #define DESC_TXSTS_TXCHAIN		(1 << 20)
134 #define DESC_TXSTS_MSK			(0x1FFFF << 0)
135 
136 #else
137 
138 #define DESC_TXSTS_OWNBYDMA		(1 << 31)
139 #define DESC_TXSTS_MSK			(0x1FFFF << 0)
140 
141 #endif
142 
143 /* rx status bits definitions */
144 #define DESC_RXSTS_OWNBYDMA		(1 << 31)
145 #define DESC_RXSTS_DAFILTERFAIL		(1 << 30)
146 #define DESC_RXSTS_FRMLENMSK		(0x3FFF << 16)
147 #define DESC_RXSTS_FRMLENSHFT		(16)
148 
149 #define DESC_RXSTS_ERROR		(1 << 15)
150 #define DESC_RXSTS_RXTRUNCATED		(1 << 14)
151 #define DESC_RXSTS_SAFILTERFAIL		(1 << 13)
152 #define DESC_RXSTS_RXIPC_GIANTFRAME	(1 << 12)
153 #define DESC_RXSTS_RXDAMAGED		(1 << 11)
154 #define DESC_RXSTS_RXVLANTAG		(1 << 10)
155 #define DESC_RXSTS_RXFIRST		(1 << 9)
156 #define DESC_RXSTS_RXLAST		(1 << 8)
157 #define DESC_RXSTS_RXIPC_GIANT		(1 << 7)
158 #define DESC_RXSTS_RXCOLLISION		(1 << 6)
159 #define DESC_RXSTS_RXFRAMEETHER		(1 << 5)
160 #define DESC_RXSTS_RXWATCHDOG		(1 << 4)
161 #define DESC_RXSTS_RXMIIERROR		(1 << 3)
162 #define DESC_RXSTS_RXDRIBBLING		(1 << 2)
163 #define DESC_RXSTS_RXCRC		(1 << 1)
164 
165 /*
166  * dmamac_cntl definitions
167  */
168 
169 /* tx control bits definitions */
170 #if defined(CONFIG_DW_ALTDESCRIPTOR)
171 
172 #define DESC_TXCTRL_SIZE1MASK		(0x1FFF << 0)
173 #define DESC_TXCTRL_SIZE1SHFT		(0)
174 #define DESC_TXCTRL_SIZE2MASK		(0x1FFF << 16)
175 #define DESC_TXCTRL_SIZE2SHFT		(16)
176 
177 #else
178 
179 #define DESC_TXCTRL_TXINT		(1 << 31)
180 #define DESC_TXCTRL_TXLAST		(1 << 30)
181 #define DESC_TXCTRL_TXFIRST		(1 << 29)
182 #define DESC_TXCTRL_TXCHECKINSCTRL	(3 << 27)
183 #define DESC_TXCTRL_TXCRCDIS		(1 << 26)
184 #define DESC_TXCTRL_TXRINGEND		(1 << 25)
185 #define DESC_TXCTRL_TXCHAIN		(1 << 24)
186 
187 #define DESC_TXCTRL_SIZE1MASK		(0x7FF << 0)
188 #define DESC_TXCTRL_SIZE1SHFT		(0)
189 #define DESC_TXCTRL_SIZE2MASK		(0x7FF << 11)
190 #define DESC_TXCTRL_SIZE2SHFT		(11)
191 
192 #endif
193 
194 /* rx control bits definitions */
195 #if defined(CONFIG_DW_ALTDESCRIPTOR)
196 
197 #define DESC_RXCTRL_RXINTDIS		(1 << 31)
198 #define DESC_RXCTRL_RXRINGEND		(1 << 15)
199 #define DESC_RXCTRL_RXCHAIN		(1 << 14)
200 
201 #define DESC_RXCTRL_SIZE1MASK		(0x1FFF << 0)
202 #define DESC_RXCTRL_SIZE1SHFT		(0)
203 #define DESC_RXCTRL_SIZE2MASK		(0x1FFF << 16)
204 #define DESC_RXCTRL_SIZE2SHFT		(16)
205 
206 #else
207 
208 #define DESC_RXCTRL_RXINTDIS		(1 << 31)
209 #define DESC_RXCTRL_RXRINGEND		(1 << 25)
210 #define DESC_RXCTRL_RXCHAIN		(1 << 24)
211 
212 #define DESC_RXCTRL_SIZE1MASK		(0x7FF << 0)
213 #define DESC_RXCTRL_SIZE1SHFT		(0)
214 #define DESC_RXCTRL_SIZE2MASK		(0x7FF << 11)
215 #define DESC_RXCTRL_SIZE2SHFT		(11)
216 
217 #endif
218 
219 struct dw_eth_dev {
220 	struct dmamacdescr tx_mac_descrtable[CONFIG_TX_DESCR_NUM];
221 	struct dmamacdescr rx_mac_descrtable[CONFIG_RX_DESCR_NUM];
222 	char txbuffs[TX_TOTAL_BUFSIZE] __aligned(ARCH_DMA_MINALIGN);
223 	char rxbuffs[RX_TOTAL_BUFSIZE] __aligned(ARCH_DMA_MINALIGN);
224 
225 	u32 interface;
226 	u32 tx_currdescnum;
227 	u32 rx_currdescnum;
228 
229 	struct eth_mac_regs *mac_regs_p;
230 	struct eth_dma_regs *dma_regs_p;
231 #ifndef CONFIG_DM_ETH
232 	struct eth_device *dev;
233 #endif
234 	struct phy_device *phydev;
235 	struct mii_dev *bus;
236 };
237 
238 #endif
239