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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 */
8
9#include <linux/init.h>
10#include <linux/kernel.h>
11#include <linux/platform_device.h>
12#include <linux/export.h>
13#include <bcm63xx_dev_enet.h>
14#include <bcm63xx_io.h>
15#include <bcm63xx_regs.h>
16
17static const unsigned long bcm6348_regs_enetdmac[] = {
18 [ENETDMAC_CHANCFG] = ENETDMAC_CHANCFG_REG,
19 [ENETDMAC_IR] = ENETDMAC_IR_REG,
20 [ENETDMAC_IRMASK] = ENETDMAC_IRMASK_REG,
21 [ENETDMAC_MAXBURST] = ENETDMAC_MAXBURST_REG,
22};
23
24static const unsigned long bcm6345_regs_enetdmac[] = {
25 [ENETDMAC_CHANCFG] = ENETDMA_6345_CHANCFG_REG,
26 [ENETDMAC_IR] = ENETDMA_6345_IR_REG,
27 [ENETDMAC_IRMASK] = ENETDMA_6345_IRMASK_REG,
28 [ENETDMAC_MAXBURST] = ENETDMA_6345_MAXBURST_REG,
29 [ENETDMAC_BUFALLOC] = ENETDMA_6345_BUFALLOC_REG,
30 [ENETDMAC_RSTART] = ENETDMA_6345_RSTART_REG,
31 [ENETDMAC_FC] = ENETDMA_6345_FC_REG,
32 [ENETDMAC_LEN] = ENETDMA_6345_LEN_REG,
33};
34
35const unsigned long *bcm63xx_regs_enetdmac;
36EXPORT_SYMBOL(bcm63xx_regs_enetdmac);
37
38static __init void bcm63xx_enetdmac_regs_init(void)
39{
40 if (BCMCPU_IS_6345())
41 bcm63xx_regs_enetdmac = bcm6345_regs_enetdmac;
42 else
43 bcm63xx_regs_enetdmac = bcm6348_regs_enetdmac;
44}
45
46static struct resource shared_res[] = {
47 {
48 .start = -1, /* filled at runtime */
49 .end = -1, /* filled at runtime */
50 .flags = IORESOURCE_MEM,
51 },
52 {
53 .start = -1, /* filled at runtime */
54 .end = -1, /* filled at runtime */
55 .flags = IORESOURCE_MEM,
56 },
57 {
58 .start = -1, /* filled at runtime */
59 .end = -1, /* filled at runtime */
60 .flags = IORESOURCE_MEM,
61 },
62};
63
64static struct platform_device bcm63xx_enet_shared_device = {
65 .name = "bcm63xx_enet_shared",
66 .id = 0,
67 .num_resources = ARRAY_SIZE(shared_res),
68 .resource = shared_res,
69};
70
71static int shared_device_registered;
72
73static struct resource enet0_res[] = {
74 {
75 .start = -1, /* filled at runtime */
76 .end = -1, /* filled at runtime */
77 .flags = IORESOURCE_MEM,
78 },
79 {
80 .start = -1, /* filled at runtime */
81 .flags = IORESOURCE_IRQ,
82 },
83 {
84 .start = -1, /* filled at runtime */
85 .flags = IORESOURCE_IRQ,
86 },
87 {
88 .start = -1, /* filled at runtime */
89 .flags = IORESOURCE_IRQ,
90 },
91};
92
93static struct bcm63xx_enet_platform_data enet0_pd;
94
95static struct platform_device bcm63xx_enet0_device = {
96 .name = "bcm63xx_enet",
97 .id = 0,
98 .num_resources = ARRAY_SIZE(enet0_res),
99 .resource = enet0_res,
100 .dev = {
101 .platform_data = &enet0_pd,
102 },
103};
104
105static struct resource enet1_res[] = {
106 {
107 .start = -1, /* filled at runtime */
108 .end = -1, /* filled at runtime */
109 .flags = IORESOURCE_MEM,
110 },
111 {
112 .start = -1, /* filled at runtime */
113 .flags = IORESOURCE_IRQ,
114 },
115 {
116 .start = -1, /* filled at runtime */
117 .flags = IORESOURCE_IRQ,
118 },
119 {
120 .start = -1, /* filled at runtime */
121 .flags = IORESOURCE_IRQ,
122 },
123};
124
125static struct bcm63xx_enet_platform_data enet1_pd;
126
127static struct platform_device bcm63xx_enet1_device = {
128 .name = "bcm63xx_enet",
129 .id = 1,
130 .num_resources = ARRAY_SIZE(enet1_res),
131 .resource = enet1_res,
132 .dev = {
133 .platform_data = &enet1_pd,
134 },
135};
136
137static struct resource enetsw_res[] = {
138 {
139 /* start & end filled at runtime */
140 .flags = IORESOURCE_MEM,
141 },
142 {
143 /* start filled at runtime */
144 .flags = IORESOURCE_IRQ,
145 },
146 {
147 /* start filled at runtime */
148 .flags = IORESOURCE_IRQ,
149 },
150};
151
152static struct bcm63xx_enetsw_platform_data enetsw_pd;
153
154static struct platform_device bcm63xx_enetsw_device = {
155 .name = "bcm63xx_enetsw",
156 .num_resources = ARRAY_SIZE(enetsw_res),
157 .resource = enetsw_res,
158 .dev = {
159 .platform_data = &enetsw_pd,
160 },
161};
162
163static int __init register_shared(void)
164{
165 int ret, chan_count;
166
167 if (shared_device_registered)
168 return 0;
169
170 bcm63xx_enetdmac_regs_init();
171
172 shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
173 shared_res[0].end = shared_res[0].start;
174 if (BCMCPU_IS_6345())
175 shared_res[0].end += (RSET_6345_ENETDMA_SIZE) - 1;
176 else
177 shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
178
179 if (BCMCPU_IS_6328() || BCMCPU_IS_6362() || BCMCPU_IS_6368())
180 chan_count = 32;
181 else if (BCMCPU_IS_6345())
182 chan_count = 8;
183 else
184 chan_count = 16;
185
186 shared_res[1].start = bcm63xx_regset_address(RSET_ENETDMAC);
187 shared_res[1].end = shared_res[1].start;
188 shared_res[1].end += RSET_ENETDMAC_SIZE(chan_count) - 1;
189
190 shared_res[2].start = bcm63xx_regset_address(RSET_ENETDMAS);
191 shared_res[2].end = shared_res[2].start;
192 shared_res[2].end += RSET_ENETDMAS_SIZE(chan_count) - 1;
193
194 ret = platform_device_register(&bcm63xx_enet_shared_device);
195 if (ret)
196 return ret;
197 shared_device_registered = 1;
198
199 return 0;
200}
201
202int __init bcm63xx_enet_register(int unit,
203 const struct bcm63xx_enet_platform_data *pd)
204{
205 struct platform_device *pdev;
206 struct bcm63xx_enet_platform_data *dpd;
207 int ret;
208
209 if (unit > 1)
210 return -ENODEV;
211
212 if (unit == 1 && (BCMCPU_IS_6338() || BCMCPU_IS_6345()))
213 return -ENODEV;
214
215 ret = register_shared();
216 if (ret)
217 return ret;
218
219 if (unit == 0) {
220 enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
221 enet0_res[0].end = enet0_res[0].start;
222 enet0_res[0].end += RSET_ENET_SIZE - 1;
223 enet0_res[1].start = bcm63xx_get_irq_number(IRQ_ENET0);
224 enet0_res[2].start = bcm63xx_get_irq_number(IRQ_ENET0_RXDMA);
225 enet0_res[3].start = bcm63xx_get_irq_number(IRQ_ENET0_TXDMA);
226 pdev = &bcm63xx_enet0_device;
227 } else {
228 enet1_res[0].start = bcm63xx_regset_address(RSET_ENET1);
229 enet1_res[0].end = enet1_res[0].start;
230 enet1_res[0].end += RSET_ENET_SIZE - 1;
231 enet1_res[1].start = bcm63xx_get_irq_number(IRQ_ENET1);
232 enet1_res[2].start = bcm63xx_get_irq_number(IRQ_ENET1_RXDMA);
233 enet1_res[3].start = bcm63xx_get_irq_number(IRQ_ENET1_TXDMA);
234 pdev = &bcm63xx_enet1_device;
235 }
236
237 /* copy given platform data */
238 dpd = pdev->dev.platform_data;
239 memcpy(dpd, pd, sizeof(*pd));
240
241 /* adjust them in case internal phy is used */
242 if (dpd->use_internal_phy) {
243
244 /* internal phy only exists for enet0 */
245 if (unit == 1)
246 return -ENODEV;
247
248 dpd->phy_id = 1;
249 dpd->has_phy_interrupt = 1;
250 dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
251 }
252
253 dpd->dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
254 dpd->dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
255 if (BCMCPU_IS_6345()) {
256 dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_CHAINING_MASK;
257 dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_WRAP_EN_MASK;
258 dpd->dma_chan_en_mask |= ENETDMAC_CHANCFG_FLOWC_EN_MASK;
259 dpd->dma_chan_int_mask |= ENETDMA_IR_BUFDONE_MASK;
260 dpd->dma_chan_int_mask |= ENETDMA_IR_NOTOWNER_MASK;
261 dpd->dma_chan_width = ENETDMA_6345_CHAN_WIDTH;
262 dpd->dma_desc_shift = ENETDMA_6345_DESC_SHIFT;
263 } else {
264 dpd->dma_has_sram = true;
265 dpd->dma_chan_width = ENETDMA_CHAN_WIDTH;
266 }
267
268 if (unit == 0) {
269 dpd->rx_chan = 0;
270 dpd->tx_chan = 1;
271 } else {
272 dpd->rx_chan = 2;
273 dpd->tx_chan = 3;
274 }
275
276 ret = platform_device_register(pdev);
277 if (ret)
278 return ret;
279 return 0;
280}
281
282int __init
283bcm63xx_enetsw_register(const struct bcm63xx_enetsw_platform_data *pd)
284{
285 int ret;
286
287 if (!BCMCPU_IS_6328() && !BCMCPU_IS_6362() && !BCMCPU_IS_6368())
288 return -ENODEV;
289
290 ret = register_shared();
291 if (ret)
292 return ret;
293
294 enetsw_res[0].start = bcm63xx_regset_address(RSET_ENETSW);
295 enetsw_res[0].end = enetsw_res[0].start;
296 enetsw_res[0].end += RSET_ENETSW_SIZE - 1;
297 enetsw_res[1].start = bcm63xx_get_irq_number(IRQ_ENETSW_RXDMA0);
298 enetsw_res[2].start = bcm63xx_get_irq_number(IRQ_ENETSW_TXDMA0);
299 if (!enetsw_res[2].start)
300 enetsw_res[2].start = -1;
301
302 memcpy(bcm63xx_enetsw_device.dev.platform_data, pd, sizeof(*pd));
303
304 if (BCMCPU_IS_6328())
305 enetsw_pd.num_ports = ENETSW_PORTS_6328;
306 else if (BCMCPU_IS_6362() || BCMCPU_IS_6368())
307 enetsw_pd.num_ports = ENETSW_PORTS_6368;
308
309 enetsw_pd.dma_has_sram = true;
310 enetsw_pd.dma_chan_width = ENETDMA_CHAN_WIDTH;
311 enetsw_pd.dma_chan_en_mask = ENETDMAC_CHANCFG_EN_MASK;
312 enetsw_pd.dma_chan_int_mask = ENETDMAC_IR_PKTDONE_MASK;
313
314 ret = platform_device_register(&bcm63xx_enetsw_device);
315 if (ret)
316 return ret;
317
318 return 0;
319}
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
7 */
8
9#include <linux/init.h>
10#include <linux/kernel.h>
11#include <linux/platform_device.h>
12#include <bcm63xx_dev_enet.h>
13#include <bcm63xx_io.h>
14#include <bcm63xx_regs.h>
15
16static struct resource shared_res[] = {
17 {
18 .start = -1, /* filled at runtime */
19 .end = -1, /* filled at runtime */
20 .flags = IORESOURCE_MEM,
21 },
22};
23
24static struct platform_device bcm63xx_enet_shared_device = {
25 .name = "bcm63xx_enet_shared",
26 .id = 0,
27 .num_resources = ARRAY_SIZE(shared_res),
28 .resource = shared_res,
29};
30
31static int shared_device_registered;
32
33static struct resource enet0_res[] = {
34 {
35 .start = -1, /* filled at runtime */
36 .end = -1, /* filled at runtime */
37 .flags = IORESOURCE_MEM,
38 },
39 {
40 .start = -1, /* filled at runtime */
41 .flags = IORESOURCE_IRQ,
42 },
43 {
44 .start = -1, /* filled at runtime */
45 .flags = IORESOURCE_IRQ,
46 },
47 {
48 .start = -1, /* filled at runtime */
49 .flags = IORESOURCE_IRQ,
50 },
51};
52
53static struct bcm63xx_enet_platform_data enet0_pd;
54
55static struct platform_device bcm63xx_enet0_device = {
56 .name = "bcm63xx_enet",
57 .id = 0,
58 .num_resources = ARRAY_SIZE(enet0_res),
59 .resource = enet0_res,
60 .dev = {
61 .platform_data = &enet0_pd,
62 },
63};
64
65static struct resource enet1_res[] = {
66 {
67 .start = -1, /* filled at runtime */
68 .end = -1, /* filled at runtime */
69 .flags = IORESOURCE_MEM,
70 },
71 {
72 .start = -1, /* filled at runtime */
73 .flags = IORESOURCE_IRQ,
74 },
75 {
76 .start = -1, /* filled at runtime */
77 .flags = IORESOURCE_IRQ,
78 },
79 {
80 .start = -1, /* filled at runtime */
81 .flags = IORESOURCE_IRQ,
82 },
83};
84
85static struct bcm63xx_enet_platform_data enet1_pd;
86
87static struct platform_device bcm63xx_enet1_device = {
88 .name = "bcm63xx_enet",
89 .id = 1,
90 .num_resources = ARRAY_SIZE(enet1_res),
91 .resource = enet1_res,
92 .dev = {
93 .platform_data = &enet1_pd,
94 },
95};
96
97int __init bcm63xx_enet_register(int unit,
98 const struct bcm63xx_enet_platform_data *pd)
99{
100 struct platform_device *pdev;
101 struct bcm63xx_enet_platform_data *dpd;
102 int ret;
103
104 if (unit > 1)
105 return -ENODEV;
106
107 if (unit == 1 && BCMCPU_IS_6338())
108 return -ENODEV;
109
110 if (!shared_device_registered) {
111 shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
112 shared_res[0].end = shared_res[0].start;
113 if (BCMCPU_IS_6338())
114 shared_res[0].end += (RSET_ENETDMA_SIZE / 2) - 1;
115 else
116 shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
117
118 ret = platform_device_register(&bcm63xx_enet_shared_device);
119 if (ret)
120 return ret;
121 shared_device_registered = 1;
122 }
123
124 if (unit == 0) {
125 enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
126 enet0_res[0].end = enet0_res[0].start;
127 enet0_res[0].end += RSET_ENET_SIZE - 1;
128 enet0_res[1].start = bcm63xx_get_irq_number(IRQ_ENET0);
129 enet0_res[2].start = bcm63xx_get_irq_number(IRQ_ENET0_RXDMA);
130 enet0_res[3].start = bcm63xx_get_irq_number(IRQ_ENET0_TXDMA);
131 pdev = &bcm63xx_enet0_device;
132 } else {
133 enet1_res[0].start = bcm63xx_regset_address(RSET_ENET1);
134 enet1_res[0].end = enet1_res[0].start;
135 enet1_res[0].end += RSET_ENET_SIZE - 1;
136 enet1_res[1].start = bcm63xx_get_irq_number(IRQ_ENET1);
137 enet1_res[2].start = bcm63xx_get_irq_number(IRQ_ENET1_RXDMA);
138 enet1_res[3].start = bcm63xx_get_irq_number(IRQ_ENET1_TXDMA);
139 pdev = &bcm63xx_enet1_device;
140 }
141
142 /* copy given platform data */
143 dpd = pdev->dev.platform_data;
144 memcpy(dpd, pd, sizeof(*pd));
145
146 /* adjust them in case internal phy is used */
147 if (dpd->use_internal_phy) {
148
149 /* internal phy only exists for enet0 */
150 if (unit == 1)
151 return -ENODEV;
152
153 dpd->phy_id = 1;
154 dpd->has_phy_interrupt = 1;
155 dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
156 }
157
158 ret = platform_device_register(pdev);
159 if (ret)
160 return ret;
161 return 0;
162}