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
|
/*
* Atheros AR71XX/AR724X/AR913X common devices
*
* Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/platform_data/gpio-ath79.h>
#include <linux/serial_8250.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/ar71xx_regs.h>
#include "common.h"
#include "dev-common.h"
static struct resource ath79_uart_resources[] = {
{
.start = AR71XX_UART_BASE,
.end = AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
.flags = IORESOURCE_MEM,
},
};
#define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
static struct plat_serial8250_port ath79_uart_data[] = {
{
.mapbase = AR71XX_UART_BASE,
.irq = ATH79_MISC_IRQ(3),
.flags = AR71XX_UART_FLAGS,
.iotype = UPIO_MEM32,
.regshift = 2,
}, {
/* terminating entry */
}
};
static struct platform_device ath79_uart_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.resource = ath79_uart_resources,
.num_resources = ARRAY_SIZE(ath79_uart_resources),
.dev = {
.platform_data = ath79_uart_data
},
};
static struct resource ar933x_uart_resources[] = {
{
.start = AR933X_UART_BASE,
.end = AR933X_UART_BASE + AR71XX_UART_SIZE - 1,
.flags = IORESOURCE_MEM,
},
{
.start = ATH79_MISC_IRQ(3),
.end = ATH79_MISC_IRQ(3),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ar933x_uart_device = {
.name = "ar933x-uart",
.id = -1,
.resource = ar933x_uart_resources,
.num_resources = ARRAY_SIZE(ar933x_uart_resources),
};
void __init ath79_register_uart(void)
{
unsigned long uart_clk_rate;
uart_clk_rate = ath79_get_sys_clk_rate("uart");
if (soc_is_ar71xx() ||
soc_is_ar724x() ||
soc_is_ar913x() ||
soc_is_ar934x() ||
soc_is_qca955x()) {
ath79_uart_data[0].uartclk = uart_clk_rate;
platform_device_register(&ath79_uart_device);
} else if (soc_is_ar933x()) {
platform_device_register(&ar933x_uart_device);
} else {
BUG();
}
}
void __init ath79_register_wdt(void)
{
struct resource res;
memset(&res, 0, sizeof(res));
res.flags = IORESOURCE_MEM;
res.start = AR71XX_RESET_BASE + AR71XX_RESET_REG_WDOG_CTRL;
res.end = res.start + 0x8 - 1;
platform_device_register_simple("ath79-wdt", -1, &res, 1);
}
static struct ath79_gpio_platform_data ath79_gpio_pdata;
static struct resource ath79_gpio_resources[] = {
{
.flags = IORESOURCE_MEM,
.start = AR71XX_GPIO_BASE,
.end = AR71XX_GPIO_BASE + AR71XX_GPIO_SIZE - 1,
},
{
.start = ATH79_MISC_IRQ(2),
.end = ATH79_MISC_IRQ(2),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device ath79_gpio_device = {
.name = "ath79-gpio",
.id = -1,
.resource = ath79_gpio_resources,
.num_resources = ARRAY_SIZE(ath79_gpio_resources),
.dev = {
.platform_data = &ath79_gpio_pdata
},
};
void __init ath79_gpio_init(void)
{
if (soc_is_ar71xx()) {
ath79_gpio_pdata.ngpios = AR71XX_GPIO_COUNT;
} else if (soc_is_ar7240()) {
ath79_gpio_pdata.ngpios = AR7240_GPIO_COUNT;
} else if (soc_is_ar7241() || soc_is_ar7242()) {
ath79_gpio_pdata.ngpios = AR7241_GPIO_COUNT;
} else if (soc_is_ar913x()) {
ath79_gpio_pdata.ngpios = AR913X_GPIO_COUNT;
} else if (soc_is_ar933x()) {
ath79_gpio_pdata.ngpios = AR933X_GPIO_COUNT;
} else if (soc_is_ar934x()) {
ath79_gpio_pdata.ngpios = AR934X_GPIO_COUNT;
ath79_gpio_pdata.oe_inverted = 1;
} else if (soc_is_qca955x()) {
ath79_gpio_pdata.ngpios = QCA955X_GPIO_COUNT;
ath79_gpio_pdata.oe_inverted = 1;
} else {
BUG();
}
platform_device_register(&ath79_gpio_device);
}
|
