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);
211