mach-mx23evk.c
5.78 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
/*
* Copyright 2010 Freescale Semiconductor, Inc. All Rights Reserved.
*
* 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.
*/
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/common.h>
#include <mach/iomux-mx23.h>
#include "devices-mx23.h"
#define MX23EVK_LCD_ENABLE MXS_GPIO_NR(1, 18)
#define MX23EVK_BL_ENABLE MXS_GPIO_NR(1, 28)
#define MX23EVK_MMC0_WRITE_PROTECT MXS_GPIO_NR(1, 30)
#define MX23EVK_MMC0_SLOT_POWER MXS_GPIO_NR(1, 29)
static const iomux_cfg_t mx23evk_pads[] __initconst = {
/* duart */
MX23_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
MX23_PAD_PWM1__DUART_TX | MXS_PAD_CTRL,
/* auart */
MX23_PAD_AUART1_RX__AUART1_RX | MXS_PAD_CTRL,
MX23_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,
MX23_PAD_AUART1_CTS__AUART1_CTS | MXS_PAD_CTRL,
MX23_PAD_AUART1_RTS__AUART1_RTS | MXS_PAD_CTRL,
/* mxsfb (lcdif) */
MX23_PAD_LCD_D00__LCD_D00 | MXS_PAD_CTRL,
MX23_PAD_LCD_D01__LCD_D01 | MXS_PAD_CTRL,
MX23_PAD_LCD_D02__LCD_D02 | MXS_PAD_CTRL,
MX23_PAD_LCD_D03__LCD_D03 | MXS_PAD_CTRL,
MX23_PAD_LCD_D04__LCD_D04 | MXS_PAD_CTRL,
MX23_PAD_LCD_D05__LCD_D05 | MXS_PAD_CTRL,
MX23_PAD_LCD_D06__LCD_D06 | MXS_PAD_CTRL,
MX23_PAD_LCD_D07__LCD_D07 | MXS_PAD_CTRL,
MX23_PAD_LCD_D08__LCD_D08 | MXS_PAD_CTRL,
MX23_PAD_LCD_D09__LCD_D09 | MXS_PAD_CTRL,
MX23_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL,
MX23_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL,
MX23_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL,
MX23_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL,
MX23_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL,
MX23_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL,
MX23_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL,
MX23_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL,
MX23_PAD_GPMI_D08__LCD_D18 | MXS_PAD_CTRL,
MX23_PAD_GPMI_D09__LCD_D19 | MXS_PAD_CTRL,
MX23_PAD_GPMI_D10__LCD_D20 | MXS_PAD_CTRL,
MX23_PAD_GPMI_D11__LCD_D21 | MXS_PAD_CTRL,
MX23_PAD_GPMI_D12__LCD_D22 | MXS_PAD_CTRL,
MX23_PAD_GPMI_D13__LCD_D23 | MXS_PAD_CTRL,
MX23_PAD_LCD_VSYNC__LCD_VSYNC | MXS_PAD_CTRL,
MX23_PAD_LCD_HSYNC__LCD_HSYNC | MXS_PAD_CTRL,
MX23_PAD_LCD_DOTCK__LCD_DOTCK | MXS_PAD_CTRL,
MX23_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL,
/* LCD panel enable */
MX23_PAD_LCD_RESET__GPIO_1_18 | MXS_PAD_CTRL,
/* backlight control */
MX23_PAD_PWM2__GPIO_1_28 | MXS_PAD_CTRL,
/* mmc */
MX23_PAD_SSP1_DATA0__SSP1_DATA0 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_SSP1_DATA1__SSP1_DATA1 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_SSP1_DATA2__SSP1_DATA2 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_SSP1_DATA3__SSP1_DATA3 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_GPMI_D08__SSP1_DATA4 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_GPMI_D09__SSP1_DATA5 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_GPMI_D10__SSP1_DATA6 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_GPMI_D11__SSP1_DATA7 |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_SSP1_CMD__SSP1_CMD |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
MX23_PAD_SSP1_DETECT__SSP1_DETECT |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
MX23_PAD_SSP1_SCK__SSP1_SCK |
(MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* write protect */
MX23_PAD_PWM4__GPIO_1_30 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
/* slot power enable */
MX23_PAD_PWM3__GPIO_1_29 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
};
/* mxsfb (lcdif) */
static struct fb_videomode mx23evk_video_modes[] = {
{
.name = "Samsung-LMS430HF02",
.refresh = 60,
.xres = 480,
.yres = 272,
.pixclock = 108096, /* picosecond (9.2 MHz) */
.left_margin = 15,
.right_margin = 8,
.upper_margin = 12,
.lower_margin = 4,
.hsync_len = 1,
.vsync_len = 1,
.sync = FB_SYNC_DATA_ENABLE_HIGH_ACT |
FB_SYNC_DOTCLK_FAILING_ACT,
},
};
static const struct mxsfb_platform_data mx23evk_mxsfb_pdata __initconst = {
.mode_list = mx23evk_video_modes,
.mode_count = ARRAY_SIZE(mx23evk_video_modes),
.default_bpp = 32,
.ld_intf_width = STMLCDIF_24BIT,
};
static struct mxs_mmc_platform_data mx23evk_mmc_pdata __initdata = {
.wp_gpio = MX23EVK_MMC0_WRITE_PROTECT,
.flags = SLOTF_8_BIT_CAPABLE,
};
static void __init mx23evk_init(void)
{
int ret;
mxs_iomux_setup_multiple_pads(mx23evk_pads, ARRAY_SIZE(mx23evk_pads));
mx23_add_duart();
mx23_add_auart0();
/* power on mmc slot by writing 0 to the gpio */
ret = gpio_request_one(MX23EVK_MMC0_SLOT_POWER, GPIOF_OUT_INIT_LOW,
"mmc0-slot-power");
if (ret)
pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
mx23_add_mxs_mmc(0, &mx23evk_mmc_pdata);
ret = gpio_request_one(MX23EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
if (ret)
pr_warn("failed to request gpio lcd-enable: %d\n", ret);
else
gpio_set_value(MX23EVK_LCD_ENABLE, 1);
ret = gpio_request_one(MX23EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable");
if (ret)
pr_warn("failed to request gpio bl-enable: %d\n", ret);
else
gpio_set_value(MX23EVK_BL_ENABLE, 1);
mx23_add_mxsfb(&mx23evk_mxsfb_pdata);
mx23_add_rtc_stmp3xxx();
}
static void __init mx23evk_timer_init(void)
{
mx23_clocks_init();
}
static struct sys_timer mx23evk_timer = {
.init = mx23evk_timer_init,
};
MACHINE_START(MX23EVK, "Freescale MX23 EVK")
/* Maintainer: Freescale Semiconductor, Inc. */
.map_io = mx23_map_io,
.init_irq = mx23_init_irq,
.timer = &mx23evk_timer,
.init_machine = mx23evk_init,
.restart = mxs_restart,
MACHINE_END