1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2006, 07 MIPS Technologies, Inc.
* written by Ralf Baechle (ralf@linux-mips.org)
* written by Ralf Baechle <ralf@linux-mips.org>
*
* Copyright (C) 2008 Wind River Systems, Inc.
* updated by Tiejun Chen <tiejun.chen@windriver.com>
*
* 1. Probe driver for the Malta's UART ports:
*
* o 2 ports in the SMC SuperIO
* o 1 port in the CBUS UART, a discrete 16550 which normally is only used
* for bringups.
*
* We don't use 8250_platform.c on Malta as it would result in the CBUS
* UART becoming ttyS0.
*
* 2. Register RTC-CMOS platform device on Malta.
*/
#include <linux/init.h>
#include <linux/serial_8250.h>
#include <linux/mc146818rtc.h>
#include <linux/module.h>
#include <linux/irq.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <mtd/mtd-abi.h>
#define SMC_PORT(base, int) \
{ \
.iobase = base, \
.irq = int, \
.uartclk = 1843200, \
.iotype = UPIO_PORT, \
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
.regshift = 0, \
}
#define CBUS_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
static struct plat_serial8250_port uart8250_data[] = {
SMC_PORT(0x3F8, 4),
SMC_PORT(0x2F8, 3),
{
.mapbase = 0x1f000900, /* The CBUS UART */
.irq = MIPS_CPU_IRQ_BASE + 2,
.uartclk = 3686400, /* Twice the usual clk! */
.iotype = UPIO_MEM32,
.flags = CBUS_UART_FLAGS,
.regshift = 3,
},
{ },
};
static struct platform_device malta_uart8250_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = uart8250_data,
},
};
struct resource malta_rtc_resources[] = {
{
.start = RTC_PORT(0),
.end = RTC_PORT(7),
.flags = IORESOURCE_IO,
}, {
.start = RTC_IRQ,
.end = RTC_IRQ,
.flags = IORESOURCE_IRQ,
}
};
static struct platform_device malta_rtc_device = {
.name = "rtc_cmos",
.id = -1,
.resource = malta_rtc_resources,
.num_resources = ARRAY_SIZE(malta_rtc_resources),
};
static struct mtd_partition malta_mtd_partitions[] = {
{
.name = "YAMON",
.offset = 0x0,
.size = 0x100000,
.mask_flags = MTD_WRITEABLE
}, {
.name = "User FS",
.offset = 0x100000,
.size = 0x2e0000
}, {
.name = "Board Config",
.offset = 0x3e0000,
.size = 0x020000,
.mask_flags = MTD_WRITEABLE
}
};
static struct physmap_flash_data malta_flash_data = {
.width = 4,
.nr_parts = ARRAY_SIZE(malta_mtd_partitions),
.parts = malta_mtd_partitions
};
static struct resource malta_flash_resource = {
.start = 0x1e000000,
.end = 0x1e3fffff,
.flags = IORESOURCE_MEM
};
static struct platform_device malta_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &malta_flash_data,
},
.num_resources = 1,
.resource = &malta_flash_resource,
};
static struct platform_device *malta_devices[] __initdata = {
&malta_uart8250_device,
&malta_rtc_device,
&malta_flash_device,
};
static int __init malta_add_devices(void)
{
int err;
err = platform_add_devices(malta_devices, ARRAY_SIZE(malta_devices));
if (err)
return err;
return 0;
}
device_initcall(malta_add_devices);
|
