glantank.c
4.7 KB
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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
/*
* arch/arm/mach-iop32x/glantank.c
*
* Board support code for the GLAN Tank.
*
* Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/f75375s.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/string.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/pci.h>
#include <asm/mach/time.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <mach/time.h>
#include "gpio-iop32x.h"
/*
* GLAN Tank timer tick configuration.
*/
static void __init glantank_timer_init(void)
{
/* 33.333 MHz crystal. */
iop_init_time(200000000);
}
/*
* GLAN Tank I/O.
*/
static struct map_desc glantank_io_desc[] __initdata = {
{ /* on-board devices */
.virtual = GLANTANK_UART,
.pfn = __phys_to_pfn(GLANTANK_UART),
.length = 0x00100000,
.type = MT_DEVICE
},
};
void __init glantank_map_io(void)
{
iop3xx_map_io();
iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
}
/*
* GLAN Tank PCI.
*/
#define INTA IRQ_IOP32X_XINT0
#define INTB IRQ_IOP32X_XINT1
#define INTC IRQ_IOP32X_XINT2
#define INTD IRQ_IOP32X_XINT3
static int __init
glantank_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
static int pci_irq_table[][4] = {
/*
* PCI IDSEL/INTPIN->INTLINE
* A B C D
*/
{INTD, INTD, INTD, INTD}, /* UART (8250) */
{INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
{INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
{INTC, INTC, INTC, INTC}, /* USB (NEC) */
};
BUG_ON(pin < 1 || pin > 4);
return pci_irq_table[slot % 4][pin - 1];
}
static struct hw_pci glantank_pci __initdata = {
.nr_controllers = 1,
.ops = &iop3xx_ops,
.setup = iop3xx_pci_setup,
.preinit = iop3xx_pci_preinit,
.map_irq = glantank_pci_map_irq,
};
static int __init glantank_pci_init(void)
{
if (machine_is_glantank())
pci_common_init(&glantank_pci);
return 0;
}
subsys_initcall(glantank_pci_init);
/*
* GLAN Tank machine initialization.
*/
static struct physmap_flash_data glantank_flash_data = {
.width = 2,
};
static struct resource glantank_flash_resource = {
.start = 0xf0000000,
.end = 0xf007ffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device glantank_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &glantank_flash_data,
},
.num_resources = 1,
.resource = &glantank_flash_resource,
};
static struct plat_serial8250_port glantank_serial_port[] = {
{
.mapbase = GLANTANK_UART,
.membase = (char *)GLANTANK_UART,
.irq = IRQ_IOP32X_XINT3,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = 1843200,
},
{ },
};
static struct resource glantank_uart_resource = {
.start = GLANTANK_UART,
.end = GLANTANK_UART + 7,
.flags = IORESOURCE_MEM,
};
static struct platform_device glantank_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = glantank_serial_port,
},
.num_resources = 1,
.resource = &glantank_uart_resource,
};
static struct f75375s_platform_data glantank_f75375s = {
.pwm = { 255, 255 },
.pwm_enable = { 0, 0 },
};
static struct i2c_board_info __initdata glantank_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372a", 0x32),
},
{
I2C_BOARD_INFO("f75375", 0x2e),
.platform_data = &glantank_f75375s,
},
};
static void glantank_power_off(void)
{
__raw_writeb(0x01, IOMEM(0xfe8d0004));
while (1)
;
}
static void __init glantank_init_machine(void)
{
register_iop32x_gpio();
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&glantank_flash_device);
platform_device_register(&glantank_serial_device);
platform_device_register(&iop3xx_dma_0_channel);
platform_device_register(&iop3xx_dma_1_channel);
i2c_register_board_info(0, glantank_i2c_devices,
ARRAY_SIZE(glantank_i2c_devices));
pm_power_off = glantank_power_off;
}
MACHINE_START(GLANTANK, "GLAN Tank")
/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
.atag_offset = 0x100,
.map_io = glantank_map_io,
.init_irq = iop32x_init_irq,
.init_time = glantank_timer_init,
.init_machine = glantank_init_machine,
.restart = iop3xx_restart,
MACHINE_END