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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*******************************************************************************
3
4 Header file for stmmac platform data
5
6 Copyright (C) 2009 STMicroelectronics Ltd
7
8
9 Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
10*******************************************************************************/
11
12#ifndef __STMMAC_PLATFORM_DATA
13#define __STMMAC_PLATFORM_DATA
14
15#include <linux/platform_device.h>
16#include <linux/phylink.h>
17
18#define MTL_MAX_RX_QUEUES 8
19#define MTL_MAX_TX_QUEUES 8
20#define STMMAC_CH_MAX 8
21
22#define STMMAC_RX_COE_NONE 0
23#define STMMAC_RX_COE_TYPE1 1
24#define STMMAC_RX_COE_TYPE2 2
25
26/* Define the macros for CSR clock range parameters to be passed by
27 * platform code.
28 * This could also be configured at run time using CPU freq framework. */
29
30/* MDC Clock Selection define*/
31#define STMMAC_CSR_60_100M 0x0 /* MDC = clk_scr_i/42 */
32#define STMMAC_CSR_100_150M 0x1 /* MDC = clk_scr_i/62 */
33#define STMMAC_CSR_20_35M 0x2 /* MDC = clk_scr_i/16 */
34#define STMMAC_CSR_35_60M 0x3 /* MDC = clk_scr_i/26 */
35#define STMMAC_CSR_150_250M 0x4 /* MDC = clk_scr_i/102 */
36#define STMMAC_CSR_250_300M 0x5 /* MDC = clk_scr_i/124 */
37#define STMMAC_CSR_300_500M 0x6 /* MDC = clk_scr_i/204 */
38#define STMMAC_CSR_500_800M 0x7 /* MDC = clk_scr_i/324 */
39
40/* MTL algorithms identifiers */
41#define MTL_TX_ALGORITHM_WRR 0x0
42#define MTL_TX_ALGORITHM_WFQ 0x1
43#define MTL_TX_ALGORITHM_DWRR 0x2
44#define MTL_TX_ALGORITHM_SP 0x3
45#define MTL_RX_ALGORITHM_SP 0x4
46#define MTL_RX_ALGORITHM_WSP 0x5
47
48/* RX/TX Queue Mode */
49#define MTL_QUEUE_AVB 0x0
50#define MTL_QUEUE_DCB 0x1
51
52/* The MDC clock could be set higher than the IEEE 802.3
53 * specified frequency limit 0f 2.5 MHz, by programming a clock divider
54 * of value different than the above defined values. The resultant MDIO
55 * clock frequency of 12.5 MHz is applicable for the interfacing chips
56 * supporting higher MDC clocks.
57 * The MDC clock selection macros need to be defined for MDC clock rate
58 * of 12.5 MHz, corresponding to the following selection.
59 */
60#define STMMAC_CSR_I_4 0x8 /* clk_csr_i/4 */
61#define STMMAC_CSR_I_6 0x9 /* clk_csr_i/6 */
62#define STMMAC_CSR_I_8 0xA /* clk_csr_i/8 */
63#define STMMAC_CSR_I_10 0xB /* clk_csr_i/10 */
64#define STMMAC_CSR_I_12 0xC /* clk_csr_i/12 */
65#define STMMAC_CSR_I_14 0xD /* clk_csr_i/14 */
66#define STMMAC_CSR_I_16 0xE /* clk_csr_i/16 */
67#define STMMAC_CSR_I_18 0xF /* clk_csr_i/18 */
68
69/* AXI DMA Burst length supported */
70#define DMA_AXI_BLEN_4 (1 << 1)
71#define DMA_AXI_BLEN_8 (1 << 2)
72#define DMA_AXI_BLEN_16 (1 << 3)
73#define DMA_AXI_BLEN_32 (1 << 4)
74#define DMA_AXI_BLEN_64 (1 << 5)
75#define DMA_AXI_BLEN_128 (1 << 6)
76#define DMA_AXI_BLEN_256 (1 << 7)
77#define DMA_AXI_BLEN_ALL (DMA_AXI_BLEN_4 | DMA_AXI_BLEN_8 | DMA_AXI_BLEN_16 \
78 | DMA_AXI_BLEN_32 | DMA_AXI_BLEN_64 \
79 | DMA_AXI_BLEN_128 | DMA_AXI_BLEN_256)
80
81struct clk;
82struct stmmac_priv;
83
84/* Platfrom data for platform device structure's platform_data field */
85
86struct stmmac_mdio_bus_data {
87 unsigned int phy_mask;
88 unsigned int pcs_mask;
89 unsigned int default_an_inband;
90 int *irqs;
91 int probed_phy_irq;
92 bool needs_reset;
93};
94
95struct stmmac_dma_cfg {
96 int pbl;
97 int txpbl;
98 int rxpbl;
99 bool pblx8;
100 int fixed_burst;
101 int mixed_burst;
102 bool aal;
103 bool eame;
104 bool multi_msi_en;
105 bool dche;
106 bool atds;
107};
108
109#define AXI_BLEN 7
110struct stmmac_axi {
111 bool axi_lpi_en;
112 bool axi_xit_frm;
113 u32 axi_wr_osr_lmt;
114 u32 axi_rd_osr_lmt;
115 bool axi_kbbe;
116 u32 axi_blen_regval;
117 bool axi_fb;
118 bool axi_mb;
119 bool axi_rb;
120};
121
122struct stmmac_rxq_cfg {
123 u8 mode_to_use;
124 u32 chan;
125 u8 pkt_route;
126 bool use_prio;
127 u32 prio;
128};
129
130struct stmmac_txq_cfg {
131 u32 weight;
132 bool coe_unsupported;
133 u8 mode_to_use;
134 /* Credit Base Shaper parameters */
135 u32 send_slope;
136 u32 idle_slope;
137 u32 high_credit;
138 u32 low_credit;
139 bool use_prio;
140 u32 prio;
141 int tbs_en;
142};
143
144struct stmmac_safety_feature_cfg {
145 u32 tsoee;
146 u32 mrxpee;
147 u32 mestee;
148 u32 mrxee;
149 u32 mtxee;
150 u32 epsi;
151 u32 edpp;
152 u32 prtyen;
153 u32 tmouten;
154};
155
156/* Addresses that may be customized by a platform */
157struct dwmac4_addrs {
158 u32 dma_chan;
159 u32 dma_chan_offset;
160 u32 mtl_chan;
161 u32 mtl_chan_offset;
162 u32 mtl_ets_ctrl;
163 u32 mtl_ets_ctrl_offset;
164 u32 mtl_txq_weight;
165 u32 mtl_txq_weight_offset;
166 u32 mtl_send_slp_cred;
167 u32 mtl_send_slp_cred_offset;
168 u32 mtl_high_cred;
169 u32 mtl_high_cred_offset;
170 u32 mtl_low_cred;
171 u32 mtl_low_cred_offset;
172};
173
174enum dwmac_core_type {
175 DWMAC_CORE_MAC100,
176 DWMAC_CORE_GMAC,
177 DWMAC_CORE_GMAC4,
178 DWMAC_CORE_XGMAC,
179};
180
181#define STMMAC_FLAG_SPH_DISABLE BIT(1)
182#define STMMAC_FLAG_USE_PHY_WOL BIT(2)
183#define STMMAC_FLAG_HAS_SUN8I BIT(3)
184#define STMMAC_FLAG_TSO_EN BIT(4)
185#define STMMAC_FLAG_SERDES_UP_AFTER_PHY_LINKUP BIT(5)
186#define STMMAC_FLAG_VLAN_FAIL_Q_EN BIT(6)
187#define STMMAC_FLAG_MULTI_MSI_EN BIT(7)
188#define STMMAC_FLAG_EXT_SNAPSHOT_EN BIT(8)
189#define STMMAC_FLAG_INT_SNAPSHOT_EN BIT(9)
190#define STMMAC_FLAG_RX_CLK_RUNS_IN_LPI BIT(10)
191#define STMMAC_FLAG_EN_TX_LPI_CLOCKGATING BIT(11)
192#define STMMAC_FLAG_EN_TX_LPI_CLK_PHY_CAP BIT(12)
193#define STMMAC_FLAG_HWTSTAMP_CORRECT_LATENCY BIT(13)
194
195struct mac_device_info;
196
197struct plat_stmmacenet_data {
198 enum dwmac_core_type core_type;
199 int bus_id;
200 int phy_addr;
201 /* MAC ----- optional PCS ----- SerDes ----- optional PHY ----- Media
202 * ^
203 * phy_interface
204 *
205 * The Synopsys dwmac core only covers the MAC and an optional
206 * integrated PCS. Where the integrated PCS is used with a SerDes,
207 * e.g. for 1000base-X or Cisco SGMII, the connection between the
208 * PCS and SerDes will be TBI.
209 *
210 * Where the Synopsys dwmac core has been instantiated with multiple
211 * interface modes, these are selected via core-external configuration
212 * which is sampled when the dwmac core is reset. How this is done is
213 * platform glue specific, but this defines the interface used from
214 * the Synopsys dwmac core to the rest of the SoC.
215 *
216 * Where PCS other than the optional integrated Synopsys dwmac PCS
217 * is used, this counts as "the rest of the SoC" in the above
218 * paragraph.
219 *
220 * phy_interface is the PHY-side interface - the interface used by
221 * an attached PHY or SFP etc. This is equivalent to the interface
222 * that phylink uses.
223 */
224 phy_interface_t phy_interface;
225 struct stmmac_mdio_bus_data *mdio_bus_data;
226 struct device_node *phy_node;
227 struct fwnode_handle *port_node;
228 struct device_node *mdio_node;
229 struct stmmac_dma_cfg *dma_cfg;
230 struct stmmac_safety_feature_cfg *safety_feat_cfg;
231 int clk_csr;
232 int enh_desc;
233 int tx_coe;
234 int rx_coe;
235 int bugged_jumbo;
236 int pmt;
237 int force_sf_dma_mode;
238 int force_thresh_dma_mode;
239 int riwt_off;
240 int max_speed;
241 int maxmtu;
242 int multicast_filter_bins;
243 int unicast_filter_entries;
244 int tx_fifo_size;
245 int rx_fifo_size;
246 u32 host_dma_width;
247 u32 rx_queues_to_use;
248 u32 tx_queues_to_use;
249 u8 rx_sched_algorithm;
250 u8 tx_sched_algorithm;
251 struct stmmac_rxq_cfg rx_queues_cfg[MTL_MAX_RX_QUEUES];
252 struct stmmac_txq_cfg tx_queues_cfg[MTL_MAX_TX_QUEUES];
253 void (*get_interfaces)(struct stmmac_priv *priv, void *bsp_priv,
254 unsigned long *interfaces);
255 int (*set_phy_intf_sel)(void *priv, u8 phy_intf_sel);
256 int (*set_clk_tx_rate)(void *priv, struct clk *clk_tx_i,
257 phy_interface_t interface, int speed);
258 void (*fix_mac_speed)(void *priv, int speed, unsigned int mode);
259 int (*fix_soc_reset)(struct stmmac_priv *priv, void __iomem *ioaddr);
260 int (*serdes_powerup)(struct net_device *ndev, void *priv);
261 void (*serdes_powerdown)(struct net_device *ndev, void *priv);
262 int (*mac_finish)(struct net_device *ndev,
263 void *priv,
264 unsigned int mode,
265 phy_interface_t interface);
266 void (*ptp_clk_freq_config)(struct stmmac_priv *priv);
267 int (*init)(struct device *dev, void *priv);
268 void (*exit)(struct device *dev, void *priv);
269 int (*suspend)(struct device *dev, void *priv);
270 int (*resume)(struct device *dev, void *priv);
271 int (*mac_setup)(void *priv, struct mac_device_info *mac);
272 int (*clks_config)(void *priv, bool enabled);
273 int (*crosststamp)(ktime_t *device, struct system_counterval_t *system,
274 void *ctx);
275 void (*dump_debug_regs)(void *priv);
276 int (*pcs_init)(struct stmmac_priv *priv);
277 void (*pcs_exit)(struct stmmac_priv *priv);
278 struct phylink_pcs *(*select_pcs)(struct stmmac_priv *priv,
279 phy_interface_t interface);
280 void *bsp_priv;
281 struct clk *stmmac_clk;
282 struct clk *pclk;
283 struct clk *clk_ptp_ref;
284 struct clk *clk_tx_i; /* clk_tx_i to MAC core */
285 unsigned long clk_ptp_rate;
286 unsigned long clk_ref_rate;
287 struct clk_bulk_data *clks;
288 int num_clks;
289 unsigned int mult_fact_100ns;
290 s32 ptp_max_adj;
291 u32 cdc_error_adj;
292 struct reset_control *stmmac_rst;
293 struct reset_control *stmmac_ahb_rst;
294 struct stmmac_axi *axi;
295 int rss_en;
296 int mac_port_sel_speed;
297 u8 vlan_fail_q;
298 struct pci_dev *pdev;
299 int int_snapshot_num;
300 int msi_mac_vec;
301 int msi_wol_vec;
302 int msi_lpi_vec;
303 int msi_sfty_ce_vec;
304 int msi_sfty_ue_vec;
305 int msi_rx_base_vec;
306 int msi_tx_base_vec;
307 const struct dwmac4_addrs *dwmac4_addrs;
308 unsigned int flags;
309};
310#endif
311

source code of linux/include/linux/stmmac.h