xref: /openbmc/u-boot/drivers/net/designware.h (revision b616d9b0) 
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 #include <asm/gpio.h>
12 
13 #define CONFIG_TX_DESCR_NUM	16
14 #define CONFIG_RX_DESCR_NUM	16
15 #define CONFIG_ETH_BUFSIZE	2048
16 #define TX_TOTAL_BUFSIZE	(CONFIG_ETH_BUFSIZE * CONFIG_TX_DESCR_NUM)
17 #define RX_TOTAL_BUFSIZE	(CONFIG_ETH_BUFSIZE * CONFIG_RX_DESCR_NUM)
18 
19 #define CONFIG_MACRESET_TIMEOUT	(3 * CONFIG_SYS_HZ)
20 #define CONFIG_MDIO_TIMEOUT	(3 * CONFIG_SYS_HZ)
21 
22 struct eth_mac_regs {
23 	u32 conf;		/* 0x00 */
24 	u32 framefilt;		/* 0x04 */
25 	u32 hashtablehigh;	/* 0x08 */
26 	u32 hashtablelow;	/* 0x0c */
27 	u32 miiaddr;		/* 0x10 */
28 	u32 miidata;		/* 0x14 */
29 	u32 flowcontrol;	/* 0x18 */
30 	u32 vlantag;		/* 0x1c */
31 	u32 version;		/* 0x20 */
32 	u8 reserved_1[20];
33 	u32 intreg;		/* 0x38 */
34 	u32 intmask;		/* 0x3c */
35 	u32 macaddr0hi;		/* 0x40 */
36 	u32 macaddr0lo;		/* 0x44 */
37 };
38 
39 /* MAC configuration register definitions */
40 #define FRAMEBURSTENABLE	(1 << 21)
41 #define MII_PORTSELECT		(1 << 15)
42 #define FES_100			(1 << 14)
43 #define DISABLERXOWN		(1 << 13)
44 #define FULLDPLXMODE		(1 << 11)
45 #define RXENABLE		(1 << 2)
46 #define TXENABLE		(1 << 3)
47 
48 /* MII address register definitions */
49 #define MII_BUSY		(1 << 0)
50 #define MII_WRITE		(1 << 1)
51 #define MII_CLKRANGE_60_100M	(0)
52 #define MII_CLKRANGE_100_150M	(0x4)
53 #define MII_CLKRANGE_20_35M	(0x8)
54 #define MII_CLKRANGE_35_60M	(0xC)
55 #define MII_CLKRANGE_150_250M	(0x10)
56 #define MII_CLKRANGE_250_300M	(0x14)
57 
58 #define MIIADDRSHIFT		(11)
59 #define MIIREGSHIFT		(6)
60 #define MII_REGMSK		(0x1F << 6)
61 #define MII_ADDRMSK		(0x1F << 11)
62 
63 
64 struct eth_dma_regs {
65 	u32 busmode;		/* 0x00 */
66 	u32 txpolldemand;	/* 0x04 */
67 	u32 rxpolldemand;	/* 0x08 */
68 	u32 rxdesclistaddr;	/* 0x0c */
69 	u32 txdesclistaddr;	/* 0x10 */
70 	u32 status;		/* 0x14 */
71 	u32 opmode;		/* 0x18 */
72 	u32 intenable;		/* 0x1c */
73 	u32 reserved1[2];
74 	u32 axibus;		/* 0x28 */
75 	u32 reserved2[7];
76 	u32 currhosttxdesc;	/* 0x48 */
77 	u32 currhostrxdesc;	/* 0x4c */
78 	u32 currhosttxbuffaddr;	/* 0x50 */
79 	u32 currhostrxbuffaddr;	/* 0x54 */
80 };
81 
82 #define DW_DMA_BASE_OFFSET	(0x1000)
83 
84 /* Default DMA Burst length */
85 #ifndef CONFIG_DW_GMAC_DEFAULT_DMA_PBL
86 #define CONFIG_DW_GMAC_DEFAULT_DMA_PBL 8
87 #endif
88 
89 /* Bus mode register definitions */
90 #define FIXEDBURST		(1 << 16)
91 #define PRIORXTX_41		(3 << 14)
92 #define PRIORXTX_31		(2 << 14)
93 #define PRIORXTX_21		(1 << 14)
94 #define PRIORXTX_11		(0 << 14)
95 #define DMA_PBL			(CONFIG_DW_GMAC_DEFAULT_DMA_PBL<<8)
96 #define RXHIGHPRIO		(1 << 1)
97 #define DMAMAC_SRST		(1 << 0)
98 
99 /* Poll demand definitions */
100 #define POLL_DATA		(0xFFFFFFFF)
101 
102 /* Operation mode definitions */
103 #define STOREFORWARD		(1 << 21)
104 #define FLUSHTXFIFO		(1 << 20)
105 #define TXSTART			(1 << 13)
106 #define TXSECONDFRAME		(1 << 2)
107 #define RXSTART			(1 << 1)
108 
109 /* Descriptior related definitions */
110 #define MAC_MAX_FRAME_SZ	(1600)
111 
112 struct dmamacdescr {
113 	u32 txrx_status;
114 	u32 dmamac_cntl;
115 	u32 dmamac_addr;
116 	u32 dmamac_next;
117 } __aligned(ARCH_DMA_MINALIGN);
118 
119 /*
120  * txrx_status definitions
121  */
122 
123 /* tx status bits definitions */
124 #if defined(CONFIG_DW_ALTDESCRIPTOR)
125 
126 #define DESC_TXSTS_OWNBYDMA		(1 << 31)
127 #define DESC_TXSTS_TXINT		(1 << 30)
128 #define DESC_TXSTS_TXLAST		(1 << 29)
129 #define DESC_TXSTS_TXFIRST		(1 << 28)
130 #define DESC_TXSTS_TXCRCDIS		(1 << 27)
131 
132 #define DESC_TXSTS_TXPADDIS		(1 << 26)
133 #define DESC_TXSTS_TXCHECKINSCTRL	(3 << 22)
134 #define DESC_TXSTS_TXRINGEND		(1 << 21)
135 #define DESC_TXSTS_TXCHAIN		(1 << 20)
136 #define DESC_TXSTS_MSK			(0x1FFFF << 0)
137 
138 #else
139 
140 #define DESC_TXSTS_OWNBYDMA		(1 << 31)
141 #define DESC_TXSTS_MSK			(0x1FFFF << 0)
142 
143 #endif
144 
145 /* rx status bits definitions */
146 #define DESC_RXSTS_OWNBYDMA		(1 << 31)
147 #define DESC_RXSTS_DAFILTERFAIL		(1 << 30)
148 #define DESC_RXSTS_FRMLENMSK		(0x3FFF << 16)
149 #define DESC_RXSTS_FRMLENSHFT		(16)
150 
151 #define DESC_RXSTS_ERROR		(1 << 15)
152 #define DESC_RXSTS_RXTRUNCATED		(1 << 14)
153 #define DESC_RXSTS_SAFILTERFAIL		(1 << 13)
154 #define DESC_RXSTS_RXIPC_GIANTFRAME	(1 << 12)
155 #define DESC_RXSTS_RXDAMAGED		(1 << 11)
156 #define DESC_RXSTS_RXVLANTAG		(1 << 10)
157 #define DESC_RXSTS_RXFIRST		(1 << 9)
158 #define DESC_RXSTS_RXLAST		(1 << 8)
159 #define DESC_RXSTS_RXIPC_GIANT		(1 << 7)
160 #define DESC_RXSTS_RXCOLLISION		(1 << 6)
161 #define DESC_RXSTS_RXFRAMEETHER		(1 << 5)
162 #define DESC_RXSTS_RXWATCHDOG		(1 << 4)
163 #define DESC_RXSTS_RXMIIERROR		(1 << 3)
164 #define DESC_RXSTS_RXDRIBBLING		(1 << 2)
165 #define DESC_RXSTS_RXCRC		(1 << 1)
166 
167 /*
168  * dmamac_cntl definitions
169  */
170 
171 /* tx control bits definitions */
172 #if defined(CONFIG_DW_ALTDESCRIPTOR)
173 
174 #define DESC_TXCTRL_SIZE1MASK		(0x1FFF << 0)
175 #define DESC_TXCTRL_SIZE1SHFT		(0)
176 #define DESC_TXCTRL_SIZE2MASK		(0x1FFF << 16)
177 #define DESC_TXCTRL_SIZE2SHFT		(16)
178 
179 #else
180 
181 #define DESC_TXCTRL_TXINT		(1 << 31)
182 #define DESC_TXCTRL_TXLAST		(1 << 30)
183 #define DESC_TXCTRL_TXFIRST		(1 << 29)
184 #define DESC_TXCTRL_TXCHECKINSCTRL	(3 << 27)
185 #define DESC_TXCTRL_TXCRCDIS		(1 << 26)
186 #define DESC_TXCTRL_TXRINGEND		(1 << 25)
187 #define DESC_TXCTRL_TXCHAIN		(1 << 24)
188 
189 #define DESC_TXCTRL_SIZE1MASK		(0x7FF << 0)
190 #define DESC_TXCTRL_SIZE1SHFT		(0)
191 #define DESC_TXCTRL_SIZE2MASK		(0x7FF << 11)
192 #define DESC_TXCTRL_SIZE2SHFT		(11)
193 
194 #endif
195 
196 /* rx control bits definitions */
197 #if defined(CONFIG_DW_ALTDESCRIPTOR)
198 
199 #define DESC_RXCTRL_RXINTDIS		(1 << 31)
200 #define DESC_RXCTRL_RXRINGEND		(1 << 15)
201 #define DESC_RXCTRL_RXCHAIN		(1 << 14)
202 
203 #define DESC_RXCTRL_SIZE1MASK		(0x1FFF << 0)
204 #define DESC_RXCTRL_SIZE1SHFT		(0)
205 #define DESC_RXCTRL_SIZE2MASK		(0x1FFF << 16)
206 #define DESC_RXCTRL_SIZE2SHFT		(16)
207 
208 #else
209 
210 #define DESC_RXCTRL_RXINTDIS		(1 << 31)
211 #define DESC_RXCTRL_RXRINGEND		(1 << 25)
212 #define DESC_RXCTRL_RXCHAIN		(1 << 24)
213 
214 #define DESC_RXCTRL_SIZE1MASK		(0x7FF << 0)
215 #define DESC_RXCTRL_SIZE1SHFT		(0)
216 #define DESC_RXCTRL_SIZE2MASK		(0x7FF << 11)
217 #define DESC_RXCTRL_SIZE2SHFT		(11)
218 
219 #endif
220 
221 struct dw_eth_dev {
222 	struct dmamacdescr tx_mac_descrtable[CONFIG_TX_DESCR_NUM];
223 	struct dmamacdescr rx_mac_descrtable[CONFIG_RX_DESCR_NUM];
224 	char txbuffs[TX_TOTAL_BUFSIZE] __aligned(ARCH_DMA_MINALIGN);
225 	char rxbuffs[RX_TOTAL_BUFSIZE] __aligned(ARCH_DMA_MINALIGN);
226 
227 	u32 interface;
228 	u32 max_speed;
229 	u32 tx_currdescnum;
230 	u32 rx_currdescnum;
231 
232 	struct eth_mac_regs *mac_regs_p;
233 	struct eth_dma_regs *dma_regs_p;
234 #ifndef CONFIG_DM_ETH
235 	struct eth_device *dev;
236 #endif
237 	struct gpio_desc reset_gpio;
238 	struct phy_device *phydev;
239 	struct mii_dev *bus;
240 };
241 
242 #ifdef CONFIG_DM_ETH
243 struct dw_eth_pdata {
244 	struct eth_pdata eth_pdata;
245 	u32 reset_delays[3];
246 };
247 #endif
248 
249 #endif
250