GNU Linux-libre 4.19.286-gnu1
[releases.git] / arch / mips / sgi-ip22 / ip22-platform.c
1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/init.h>
3 #include <linux/if_ether.h>
4 #include <linux/kernel.h>
5 #include <linux/platform_device.h>
6
7 #include <asm/paccess.h>
8 #include <asm/sgi/ip22.h>
9 #include <asm/sgi/hpc3.h>
10 #include <asm/sgi/mc.h>
11 #include <asm/sgi/seeq.h>
12 #include <asm/sgi/wd.h>
13
14 static struct resource sgiwd93_0_resources[] = {
15         {
16                 .name   = "eth0 irq",
17                 .start  = SGI_WD93_0_IRQ,
18                 .end    = SGI_WD93_0_IRQ,
19                 .flags  = IORESOURCE_IRQ
20         }
21 };
22
23 static struct sgiwd93_platform_data sgiwd93_0_pd = {
24         .unit   = 0,
25         .irq    = SGI_WD93_0_IRQ,
26 };
27
28 static struct platform_device sgiwd93_0_device = {
29         .name           = "sgiwd93",
30         .id             = 0,
31         .num_resources  = ARRAY_SIZE(sgiwd93_0_resources),
32         .resource       = sgiwd93_0_resources,
33         .dev = {
34                 .platform_data = &sgiwd93_0_pd,
35         },
36 };
37
38 static struct resource sgiwd93_1_resources[] = {
39         {
40                 .name   = "eth0 irq",
41                 .start  = SGI_WD93_1_IRQ,
42                 .end    = SGI_WD93_1_IRQ,
43                 .flags  = IORESOURCE_IRQ
44         }
45 };
46
47 static struct sgiwd93_platform_data sgiwd93_1_pd = {
48         .unit   = 1,
49         .irq    = SGI_WD93_1_IRQ,
50 };
51
52 static struct platform_device sgiwd93_1_device = {
53         .name           = "sgiwd93",
54         .id             = 1,
55         .num_resources  = ARRAY_SIZE(sgiwd93_1_resources),
56         .resource       = sgiwd93_1_resources,
57         .dev = {
58                 .platform_data = &sgiwd93_1_pd,
59         },
60 };
61
62 /*
63  * Create a platform device for the GPI port that receives the
64  * image data from the embedded camera.
65  */
66 static int __init sgiwd93_devinit(void)
67 {
68         int res;
69
70         sgiwd93_0_pd.hregs      = &hpc3c0->scsi_chan0;
71         sgiwd93_0_pd.wdregs     = (unsigned char *) hpc3c0->scsi0_ext;
72
73         res = platform_device_register(&sgiwd93_0_device);
74         if (res)
75                 return res;
76
77         if (!ip22_is_fullhouse())
78                 return 0;
79
80         sgiwd93_1_pd.hregs      = &hpc3c0->scsi_chan1;
81         sgiwd93_1_pd.wdregs     = (unsigned char *) hpc3c0->scsi1_ext;
82
83         return platform_device_register(&sgiwd93_1_device);
84 }
85
86 device_initcall(sgiwd93_devinit);
87
88 static struct resource sgiseeq_0_resources[] = {
89         {
90                 .name   = "eth0 irq",
91                 .start  = SGI_ENET_IRQ,
92                 .end    = SGI_ENET_IRQ,
93                 .flags  = IORESOURCE_IRQ
94         }
95 };
96
97 static struct sgiseeq_platform_data eth0_pd;
98
99 static struct platform_device eth0_device = {
100         .name           = "sgiseeq",
101         .id             = 0,
102         .num_resources  = ARRAY_SIZE(sgiseeq_0_resources),
103         .resource       = sgiseeq_0_resources,
104         .dev = {
105                 .platform_data = &eth0_pd,
106         },
107 };
108
109 static struct resource sgiseeq_1_resources[] = {
110         {
111                 .name   = "eth1 irq",
112                 .start  = SGI_GIO_0_IRQ,
113                 .end    = SGI_GIO_0_IRQ,
114                 .flags  = IORESOURCE_IRQ
115         }
116 };
117
118 static struct sgiseeq_platform_data eth1_pd;
119
120 static struct platform_device eth1_device = {
121         .name           = "sgiseeq",
122         .id             = 1,
123         .num_resources  = ARRAY_SIZE(sgiseeq_1_resources),
124         .resource       = sgiseeq_1_resources,
125         .dev = {
126                 .platform_data = &eth1_pd,
127         },
128 };
129
130 /*
131  * Create a platform device for the GPI port that receives the
132  * image data from the embedded camera.
133  */
134 static int __init sgiseeq_devinit(void)
135 {
136         unsigned int pbdma __maybe_unused;
137         int res, i;
138
139         eth0_pd.hpc = hpc3c0;
140         eth0_pd.irq = SGI_ENET_IRQ;
141 #define EADDR_NVOFS     250
142         for (i = 0; i < 3; i++) {
143                 unsigned short tmp = ip22_nvram_read(EADDR_NVOFS / 2 + i);
144
145                 eth0_pd.mac[2 * i]     = tmp >> 8;
146                 eth0_pd.mac[2 * i + 1] = tmp & 0xff;
147         }
148
149         res = platform_device_register(&eth0_device);
150         if (res)
151                 return res;
152
153         /* Second HPC is missing? */
154         if (ip22_is_fullhouse() ||
155             get_dbe(pbdma, (unsigned int *)&hpc3c1->pbdma[1]))
156                 return 0;
157
158         sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 | SGIMC_GIOPAR_EXP164 |
159                          SGIMC_GIOPAR_HPC264;
160         hpc3c1->pbus_piocfg[0][0] = 0x3ffff;
161         /* interrupt/config register on Challenge S Mezz board */
162         hpc3c1->pbus_extregs[0][0] = 0x30;
163
164         eth1_pd.hpc = hpc3c1;
165         eth1_pd.irq = SGI_GIO_0_IRQ;
166 #define EADDR_NVOFS     250
167         for (i = 0; i < 3; i++) {
168                 unsigned short tmp = ip22_eeprom_read(&hpc3c1->eeprom,
169                                                       EADDR_NVOFS / 2 + i);
170
171                 eth1_pd.mac[2 * i]     = tmp >> 8;
172                 eth1_pd.mac[2 * i + 1] = tmp & 0xff;
173         }
174
175         return platform_device_register(&eth1_device);
176 }
177
178 device_initcall(sgiseeq_devinit);
179
180 static int __init sgi_hal2_devinit(void)
181 {
182         return IS_ERR(platform_device_register_simple("sgihal2", 0, NULL, 0));
183 }
184
185 device_initcall(sgi_hal2_devinit);
186
187 static int __init sgi_button_devinit(void)
188 {
189         if (ip22_is_fullhouse())
190                 return 0; /* full house has no volume buttons */
191
192         return IS_ERR(platform_device_register_simple("sgibtns", -1, NULL, 0));
193 }
194
195 device_initcall(sgi_button_devinit);
196
197 static int __init sgi_ds1286_devinit(void)
198 {
199         struct resource res;
200
201         memset(&res, 0, sizeof(res));
202         res.start = HPC3_CHIP0_BASE + offsetof(struct hpc3_regs, rtcregs);
203         res.end = res.start + sizeof(hpc3c0->rtcregs) - 1;
204         res.flags = IORESOURCE_MEM;
205
206         return IS_ERR(platform_device_register_simple("rtc-ds1286", -1,
207                                                       &res, 1));
208 }
209
210 device_initcall(sgi_ds1286_devinit);