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
|
/*
* Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
*
* 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.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <asm/mach/arch.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/mmc.h>
#include <mach/imxfb.h>
#include <mach/iomux.h>
#include "devices.h"
static int pcm970_sdhc2_get_ro(struct device *dev)
{
return gpio_get_value(GPIO_PORTC + 28);
}
static int pcm970_sdhc2_pins[] = {
PB4_PF_SD2_D0,
PB5_PF_SD2_D1,
PB6_PF_SD2_D2,
PB7_PF_SD2_D3,
PB8_PF_SD2_CMD,
PB9_PF_SD2_CLK,
};
static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data)
{
int ret;
ret = mxc_gpio_setup_multiple_pins(pcm970_sdhc2_pins,
ARRAY_SIZE(pcm970_sdhc2_pins), "sdhc2");
if(ret)
return ret;
ret = request_irq(IRQ_GPIOC(29), detect_irq, 0,
"imx-mmc-detect", data);
if (ret)
goto out_release_gpio;
set_irq_type(IRQ_GPIOC(29), IRQF_TRIGGER_FALLING);
ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro");
if (ret)
goto out_release_gpio;
mxc_gpio_mode((GPIO_PORTC | 28) | GPIO_GPIO | GPIO_IN);
gpio_direction_input(GPIO_PORTC + 28);
return 0;
out_release_gpio:
mxc_gpio_release_multiple_pins(pcm970_sdhc2_pins,
ARRAY_SIZE(pcm970_sdhc2_pins));
return ret;
}
static void pcm970_sdhc2_exit(struct device *dev, void *data)
{
free_irq(IRQ_GPIOC(29), data);
gpio_free(GPIO_PORTC + 28);
mxc_gpio_release_multiple_pins(pcm970_sdhc2_pins,
ARRAY_SIZE(pcm970_sdhc2_pins));
}
static struct imxmmc_platform_data sdhc_pdata = {
.get_ro = pcm970_sdhc2_get_ro,
.init = pcm970_sdhc2_init,
.exit = pcm970_sdhc2_exit,
};
static int mxc_fb_pins[] = {
PA5_PF_LSCLK, PA6_PF_LD0, PA7_PF_LD1, PA8_PF_LD2,
PA9_PF_LD3, PA10_PF_LD4, PA11_PF_LD5, PA12_PF_LD6,
PA13_PF_LD7, PA14_PF_LD8, PA15_PF_LD9, PA16_PF_LD10,
PA17_PF_LD11, PA18_PF_LD12, PA19_PF_LD13, PA20_PF_LD14,
PA21_PF_LD15, PA22_PF_LD16, PA23_PF_LD17, PA24_PF_REV,
PA25_PF_CLS, PA26_PF_PS, PA27_PF_SPL_SPR, PA28_PF_HSYNC,
PA29_PF_VSYNC, PA30_PF_CONTRAST, PA31_PF_OE_ACD
};
static int pcm038_fb_init(struct platform_device *pdev)
{
return mxc_gpio_setup_multiple_pins(mxc_fb_pins,
ARRAY_SIZE(mxc_fb_pins), "FB");
}
static int pcm038_fb_exit(struct platform_device *pdev)
{
mxc_gpio_release_multiple_pins(mxc_fb_pins, ARRAY_SIZE(mxc_fb_pins));
return 0;
}
/*
* Connected is a portrait Sharp-QVGA display
* of type: LQ035Q7DH06
*/
static struct imx_fb_platform_data pcm038_fb_data = {
.pixclock = 188679, /* in ps (5.3MHz) */
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 7,
.left_margin = 5,
.right_margin = 16,
.vsync_len = 1,
.upper_margin = 7,
.lower_margin = 9,
.fixed_screen_cpu = 0,
/*
* - HSYNC active high
* - VSYNC active high
* - clk notenabled while idle
* - clock not inverted
* - data not inverted
* - data enable low active
* - enable sharp mode
*/
.pcr = 0xFA0080C0,
.pwmr = 0x00A903FF,
.lscr1 = 0x00120300,
.dmacr = 0x00020010,
.init = pcm038_fb_init,
.exit = pcm038_fb_exit,
};
/*
* system init for baseboard usage. Will be called by pcm038 init.
*
* Add platform devices present on this baseboard and init
* them from CPU side as far as required to use them later on
*/
void __init pcm970_baseboard_init(void)
{
mxc_register_device(&mxc_fb_device, &pcm038_fb_data);
mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
}
|
