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) 2007 Ralf Baechle (ralf@linux-mips.org)
7  */
8 #include <linux/init.h>
9 #include <linux/platform_device.h>
10 #include <linux/serial_8250.h>
11 #include <linux/rtc/ds1685.h>
12 
13 #include <asm/ip32/mace.h>
14 #include <asm/ip32/ip32_ints.h>
15 
16 extern void ip32_prepare_poweroff(void);
17 
18 #define MACEISA_SERIAL1_OFFS   offsetof(struct sgi_mace, isa.serial1)
19 #define MACEISA_SERIAL2_OFFS   offsetof(struct sgi_mace, isa.serial2)
20 
21 #define MACE_PORT(offset,_irq)						\
22 {									\
23 	.mapbase	= MACE_BASE + offset,				\
24 	.irq		= _irq,						\
25 	.uartclk	= 1843200,					\
26 	.iotype		= UPIO_MEM,					\
27 	.flags		= UPF_SKIP_TEST|UPF_IOREMAP,			\
28 	.regshift	= 8,						\
29 }
30 
31 static struct plat_serial8250_port uart8250_data[] = {
32 	MACE_PORT(MACEISA_SERIAL1_OFFS, MACEISA_SERIAL1_IRQ),
33 	MACE_PORT(MACEISA_SERIAL2_OFFS, MACEISA_SERIAL2_IRQ),
34 	{ },
35 };
36 
37 static struct platform_device uart8250_device = {
38 	.name			= "serial8250",
39 	.id			= PLAT8250_DEV_PLATFORM,
40 	.dev			= {
41 		.platform_data	= uart8250_data,
42 	},
43 };
44 
45 static int __init uart8250_init(void)
46 {
47 	return platform_device_register(&uart8250_device);
48 }
49 
50 device_initcall(uart8250_init);
51 
52 static __init int meth_devinit(void)
53 {
54 	struct platform_device *pd;
55 	int ret;
56 
57 	pd = platform_device_alloc("meth", -1);
58 	if (!pd)
59 		return -ENOMEM;
60 
61 	ret = platform_device_add(pd);
62 	if (ret)
63 		platform_device_put(pd);
64 
65 	return ret;
66 }
67 
68 device_initcall(meth_devinit);
69 
70 static __init int sgio2audio_devinit(void)
71 {
72 	struct platform_device *pd;
73 	int ret;
74 
75 	pd = platform_device_alloc("sgio2audio", -1);
76 	if (!pd)
77 		return -ENOMEM;
78 
79 	ret = platform_device_add(pd);
80 	if (ret)
81 		platform_device_put(pd);
82 
83 	return ret;
84 }
85 
86 device_initcall(sgio2audio_devinit);
87 
88 static __init int sgio2btns_devinit(void)
89 {
90 	return IS_ERR(platform_device_register_simple("sgibtns", -1, NULL, 0));
91 }
92 
93 device_initcall(sgio2btns_devinit);
94 
95 #define MACE_RTC_RES_START (MACE_BASE + offsetof(struct sgi_mace, isa.rtc))
96 #define MACE_RTC_RES_END (MACE_RTC_RES_START + 32767)
97 
98 static struct resource ip32_rtc_resources[] = {
99 	{
100 		.start	= MACEISA_RTC_IRQ,
101 		.end	= MACEISA_RTC_IRQ,
102 		.flags	= IORESOURCE_IRQ
103 	}, {
104 		.start	= MACE_RTC_RES_START,
105 		.end	= MACE_RTC_RES_END,
106 		.flags	= IORESOURCE_MEM,
107 	}
108 };
109 
110 /* RTC registers on IP32 are each padded by 256 bytes (0x100). */
111 static struct ds1685_rtc_platform_data
112 ip32_rtc_platform_data[] = {
113 	{
114 		.regstep = 0x100,
115 		.bcd_mode = true,
116 		.no_irq = false,
117 		.uie_unsupported = false,
118 		.access_type = ds1685_reg_direct,
119 		.plat_prepare_poweroff = ip32_prepare_poweroff,
120 	},
121 };
122 
123 struct platform_device ip32_rtc_device = {
124 	.name			= "rtc-ds1685",
125 	.id			= -1,
126 	.dev			= {
127 		.platform_data	= ip32_rtc_platform_data,
128 	},
129 	.num_resources		= ARRAY_SIZE(ip32_rtc_resources),
130 	.resource		= ip32_rtc_resources,
131 };
132 
133 static __init int sgio2_rtc_devinit(void)
134 {
135 	return platform_device_register(&ip32_rtc_device);
136 }
137 
138 device_initcall(sgio2_rtc_devinit);
139