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
|
/*
* linux/arch/arm/mach-mmp/gplugd.c
*
* Support for the Marvell PXA168-based GuruPlug Display (gplugD) Platform.
*
* 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
* publishhed by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/gpio-pxa.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include "irqs.h"
#include "pxa168.h"
#include "mfp-pxa168.h"
#include "common.h"
static unsigned long gplugd_pin_config[] __initdata = {
/* UART3 */
GPIO8_UART3_TXD,
GPIO9_UART3_RXD,
GPIO1O_UART3_CTS,
GPIO11_UART3_RTS,
/* USB OTG PEN */
GPIO18_GPIO,
/* MMC2 */
GPIO28_MMC2_CMD,
GPIO29_MMC2_CLK,
GPIO30_MMC2_DAT0,
GPIO31_MMC2_DAT1,
GPIO32_MMC2_DAT2,
GPIO33_MMC2_DAT3,
/* LCD & HDMI clock selection GPIO: 0: 74.176MHz, 1: 74.25 MHz */
GPIO35_GPIO,
GPIO36_GPIO, /* CEC Interrupt */
/* MMC1 */
GPIO43_MMC1_CLK,
GPIO49_MMC1_CMD,
GPIO41_MMC1_DAT0,
GPIO40_MMC1_DAT1,
GPIO52_MMC1_DAT2,
GPIO51_MMC1_DAT3,
GPIO53_MMC1_CD,
/* LCD */
GPIO56_LCD_FCLK_RD,
GPIO57_LCD_LCLK_A0,
GPIO58_LCD_PCLK_WR,
GPIO59_LCD_DENA_BIAS,
GPIO60_LCD_DD0,
GPIO61_LCD_DD1,
GPIO62_LCD_DD2,
GPIO63_LCD_DD3,
GPIO64_LCD_DD4,
GPIO65_LCD_DD5,
GPIO66_LCD_DD6,
GPIO67_LCD_DD7,
GPIO68_LCD_DD8,
GPIO69_LCD_DD9,
GPIO70_LCD_DD10,
GPIO71_LCD_DD11,
GPIO72_LCD_DD12,
GPIO73_LCD_DD13,
GPIO74_LCD_DD14,
GPIO75_LCD_DD15,
GPIO76_LCD_DD16,
GPIO77_LCD_DD17,
GPIO78_LCD_DD18,
GPIO79_LCD_DD19,
GPIO80_LCD_DD20,
GPIO81_LCD_DD21,
GPIO82_LCD_DD22,
GPIO83_LCD_DD23,
/* GPIO */
GPIO84_GPIO,
GPIO85_GPIO,
/* Fast-Ethernet*/
GPIO86_TX_CLK,
GPIO87_TX_EN,
GPIO88_TX_DQ3,
GPIO89_TX_DQ2,
GPIO90_TX_DQ1,
GPIO91_TX_DQ0,
GPIO92_MII_CRS,
GPIO93_MII_COL,
GPIO94_RX_CLK,
GPIO95_RX_ER,
GPIO96_RX_DQ3,
GPIO97_RX_DQ2,
GPIO98_RX_DQ1,
GPIO99_RX_DQ0,
GPIO100_MII_MDC,
GPIO101_MII_MDIO,
GPIO103_RX_DV,
GPIO104_GPIO, /* Reset PHY */
/* RTC interrupt */
GPIO102_GPIO,
/* I2C */
GPIO105_CI2C_SDA,
GPIO106_CI2C_SCL,
/* SPI NOR Flash on SSP2 */
GPIO107_SSP2_RXD,
GPIO108_SSP2_TXD,
GPIO110_GPIO, /* SPI_CSn */
GPIO111_SSP2_CLK,
/* Select JTAG */
GPIO109_GPIO,
/* I2S */
GPIO114_I2S_FRM,
GPIO115_I2S_BCLK,
GPIO116_I2S_TXD
};
static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
.irq_base = MMP_GPIO_TO_IRQ(0),
};
static struct i2c_board_info gplugd_i2c_board_info[] = {
{
.type = "isl1208",
.addr = 0x6F,
}
};
/* Bring PHY out of reset by setting GPIO 104 */
static int gplugd_eth_init(void)
{
if (unlikely(gpio_request(104, "ETH_RESET_N"))) {
printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet "
"PHY out of reset\n");
return -EIO;
}
gpio_direction_output(104, 1);
gpio_free(104);
return 0;
}
struct pxa168_eth_platform_data gplugd_eth_platform_data = {
.port_number = 0,
.phy_addr = 0,
.speed = 0, /* Autonagotiation */
.intf = PHY_INTERFACE_MODE_RMII,
.init = gplugd_eth_init,
};
static void __init select_disp_freq(void)
{
/* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */
if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) {
printk(KERN_ERR "Can't get hold of GPIO 35 to select display "
"frequency\n");
} else {
gpio_direction_output(35, 1);
gpio_free(35);
}
if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) {
printk(KERN_ERR "Can't get hold of GPIO 85 to select display "
"frequency\n");
} else {
gpio_direction_output(85, 0);
gpio_free(85);
}
}
static void __init gplugd_init(void)
{
mfp_config(ARRAY_AND_SIZE(gplugd_pin_config));
select_disp_freq();
/* on-chip devices */
pxa168_add_uart(3);
pxa168_add_ssp(1);
pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
sizeof(struct pxa_gpio_platform_data));
platform_device_register(&pxa168_device_gpio);
pxa168_add_eth(&gplugd_eth_platform_data);
}
MACHINE_START(GPLUGD, "PXA168-based GuruPlug Display (gplugD) Platform")
.map_io = mmp_map_io,
.nr_irqs = MMP_NR_IRQS,
.init_irq = pxa168_init_irq,
.init_time = pxa168_timer_init,
.init_machine = gplugd_init,
.restart = pxa168_restart,
MACHINE_END
|
