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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 <bcm63xx_dev_enet.h> | |
13 | #include <bcm63xx_io.h> | |
14 | #include <bcm63xx_regs.h> | |
15 | ||
16 | static struct resource shared_res[] = { | |
17 | { | |
18 | .start = -1, /* filled at runtime */ | |
19 | .end = -1, /* filled at runtime */ | |
20 | .flags = IORESOURCE_MEM, | |
21 | }, | |
22 | }; | |
23 | ||
24 | static 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 | ||
31 | static int shared_device_registered; | |
32 | ||
33 | static 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 | ||
53 | static struct bcm63xx_enet_platform_data enet0_pd; | |
54 | ||
55 | static 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 | ||
65 | static 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 | ||
85 | static struct bcm63xx_enet_platform_data enet1_pd; | |
86 | ||
87 | static 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 | ||
97 | int __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 | ||
7f13f65e FF |
107 | if (unit == 1 && BCMCPU_IS_6338()) |
108 | return -ENODEV; | |
109 | ||
9b1fc55a MB |
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 | } |