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review.evervolv.com / android_kernel_htc_msm8960 / eda2e5dcc914b4d70f665443efc9780e89a5e5c1 / . / arch / mips / bcm63xx / dev-enet.c
blob: 9f544badd0b4d5dddc25701a690bb63b797cf8f8 [file] [log] [blame]
Maxime Bizon9b1fc552009-08-18 13:23:40 +0100[diff] [blame]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 (!shared_device_registered) {
108 shared_res[0].start = bcm63xx_regset_address(RSET_ENETDMA);
109 shared_res[0].end = shared_res[0].start;
110 if (BCMCPU_IS_6338())
111 shared_res[0].end += (RSET_ENETDMA_SIZE / 2) - 1;
112 else
113 shared_res[0].end += (RSET_ENETDMA_SIZE) - 1;
114
115 ret = platform_device_register(&bcm63xx_enet_shared_device);
116 if (ret)
117 return ret;
118 shared_device_registered = 1;
119 }
120
121 if (unit == 0) {
122 enet0_res[0].start = bcm63xx_regset_address(RSET_ENET0);
123 enet0_res[0].end = enet0_res[0].start;
124 enet0_res[0].end += RSET_ENET_SIZE - 1;
125 enet0_res[1].start = bcm63xx_get_irq_number(IRQ_ENET0);
126 enet0_res[2].start = bcm63xx_get_irq_number(IRQ_ENET0_RXDMA);
127 enet0_res[3].start = bcm63xx_get_irq_number(IRQ_ENET0_TXDMA);
128 pdev = &bcm63xx_enet0_device;
129 } else {
130 enet1_res[0].start = bcm63xx_regset_address(RSET_ENET1);
131 enet1_res[0].end = enet1_res[0].start;
132 enet1_res[0].end += RSET_ENET_SIZE - 1;
133 enet1_res[1].start = bcm63xx_get_irq_number(IRQ_ENET1);
134 enet1_res[2].start = bcm63xx_get_irq_number(IRQ_ENET1_RXDMA);
135 enet1_res[3].start = bcm63xx_get_irq_number(IRQ_ENET1_TXDMA);
136 pdev = &bcm63xx_enet1_device;
137 }
138
139 /* copy given platform data */
140 dpd = pdev->dev.platform_data;
141 memcpy(dpd, pd, sizeof(*pd));
142
143 /* adjust them in case internal phy is used */
144 if (dpd->use_internal_phy) {
145
146 /* internal phy only exists for enet0 */
147 if (unit == 1)
148 return -ENODEV;
149
150 dpd->phy_id = 1;
151 dpd->has_phy_interrupt = 1;
152 dpd->phy_interrupt = bcm63xx_get_irq_number(IRQ_ENET_PHY);
153 }
154
155 ret = platform_device_register(pdev);
156 if (ret)
157 return ret;
158 return 0;
159}