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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/*
* arch/arm/mach-iop32x/em7210.c
*
* Board support code for the Lanner EM7210 platforms.
*
* Based on arch/arm/mach-iop32x/iq31244.c file.
*
* Copyright (C) 2007 Arnaud Patard <arnaud.patard@rtp-net.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/serial_core.h>
#include <linux/serial_8250.h>
#include <linux/mtd/physmap.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <mach/hardware.h>
#include <linux/io.h>
#include <linux/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 <mach/time.h>
#include "gpio-iop32x.h"
static void __init em7210_timer_init(void)
{
/* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */
/* 33.333 MHz crystal. */
iop_init_time(200000000);
}
/*
* EM7210 RTC
*/
static struct i2c_board_info __initdata em7210_i2c_devices[] = {
{
I2C_BOARD_INFO("rs5c372a", 0x32),
},
};
/*
* EM7210 I/O
*/
static struct map_desc em7210_io_desc[] __initdata = {
{ /* on-board devices */
.virtual = IQ31244_UART,
.pfn = __phys_to_pfn(IQ31244_UART),
.length = 0x00100000,
.type = MT_DEVICE,
},
};
void __init em7210_map_io(void)
{
iop3xx_map_io();
iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc));
}
/*
* EM7210 PCI
*/
#define INTA IRQ_IOP32X_XINT0
#define INTB IRQ_IOP32X_XINT1
#define INTC IRQ_IOP32X_XINT2
#define INTD IRQ_IOP32X_XINT3
static int __init
em7210_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
*/
{INTB, INTB, INTB, INTB}, /* console / uart */
{INTA, INTA, INTA, INTA}, /* 1st 82541 */
{INTD, INTD, INTD, INTD}, /* 2nd 82541 */
{INTC, INTC, INTC, INTC}, /* GD31244 */
{INTD, INTA, INTA, INTA}, /* mini-PCI */
{INTD, INTC, INTA, INTA}, /* NEC USB */
};
if (pin < 1 || pin > 4)
return -1;
return pci_irq_table[slot % 6][pin - 1];
}
static struct hw_pci em7210_pci __initdata = {
.nr_controllers = 1,
.ops = &iop3xx_ops,
.setup = iop3xx_pci_setup,
.preinit = iop3xx_pci_preinit,
.map_irq = em7210_pci_map_irq,
};
static int __init em7210_pci_init(void)
{
if (machine_is_em7210())
pci_common_init(&em7210_pci);
return 0;
}
subsys_initcall(em7210_pci_init);
/*
* EM7210 Flash
*/
static struct physmap_flash_data em7210_flash_data = {
.width = 2,
};
static struct resource em7210_flash_resource = {
.start = 0xf0000000,
.end = 0xf1ffffff,
.flags = IORESOURCE_MEM,
};
static struct platform_device em7210_flash_device = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &em7210_flash_data,
},
.num_resources = 1,
.resource = &em7210_flash_resource,
};
/*
* EM7210 UART
* The physical address of the serial port is 0xfe800000,
* so it can be used for physical and virtual address.
*/
static struct plat_serial8250_port em7210_serial_port[] = {
{
.mapbase = IQ31244_UART,
.membase = (char *)IQ31244_UART,
.irq = IRQ_IOP32X_XINT1,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = 1843200,
},
{ },
};
static struct resource em7210_uart_resource = {
.start = IQ31244_UART,
.end = IQ31244_UART + 7,
.flags = IORESOURCE_MEM,
};
static struct platform_device em7210_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = em7210_serial_port,
},
.num_resources = 1,
.resource = &em7210_uart_resource,
};
#define EM7210_HARDWARE_POWER 0
void em7210_power_off(void)
{
int ret;
ret = gpio_direction_output(EM7210_HARDWARE_POWER, 1);
if (ret)
pr_crit("could not drive power off GPIO high\n");
}
static int __init em7210_request_gpios(void)
{
int ret;
if (!machine_is_em7210())
return 0;
ret = gpio_request(EM7210_HARDWARE_POWER, "power");
if (ret) {
pr_err("could not request power off GPIO\n");
return 0;
}
pm_power_off = em7210_power_off;
return 0;
}
device_initcall(em7210_request_gpios);
static void __init em7210_init_machine(void)
{
register_iop32x_gpio();
platform_device_register(&em7210_serial_device);
platform_device_register(&iop3xx_i2c0_device);
platform_device_register(&iop3xx_i2c1_device);
platform_device_register(&em7210_flash_device);
platform_device_register(&iop3xx_dma_0_channel);
platform_device_register(&iop3xx_dma_1_channel);
i2c_register_board_info(0, em7210_i2c_devices,
ARRAY_SIZE(em7210_i2c_devices));
}
MACHINE_START(EM7210, "Lanner EM7210")
.atag_offset = 0x100,
.map_io = em7210_map_io,
.init_irq = iop32x_init_irq,
.init_time = em7210_timer_init,
.init_machine = em7210_init_machine,
.restart = iop3xx_restart,
MACHINE_END
|
