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ff6552e4 JB |
1 | /* |
2 | * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version 2 | |
7 | * of the License, or (at your option) any later version. | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
16 | * MA 02110-1301, USA. | |
17 | */ | |
18 | ||
19 | #include <linux/platform_device.h> | |
7c107dcb SH |
20 | #include <linux/gpio.h> |
21 | #include <linux/irq.h> | |
9db973a5 | 22 | |
ff6552e4 JB |
23 | #include <asm/mach/arch.h> |
24 | ||
9db973a5 SH |
25 | #include <mach/hardware.h> |
26 | #include <mach/common.h> | |
7c107dcb | 27 | #include <mach/mmc.h> |
9db973a5 SH |
28 | #include <mach/imxfb.h> |
29 | #include <mach/iomux.h> | |
30 | ||
31 | #include "devices.h" | |
32 | ||
f231ea44 SH |
33 | static int pcm970_pins[] = { |
34 | /* SDHC */ | |
7c107dcb SH |
35 | PB4_PF_SD2_D0, |
36 | PB5_PF_SD2_D1, | |
37 | PB6_PF_SD2_D2, | |
38 | PB7_PF_SD2_D3, | |
39 | PB8_PF_SD2_CMD, | |
40 | PB9_PF_SD2_CLK, | |
f231ea44 SH |
41 | GPIO_PORTC | 28 | GPIO_GPIO | GPIO_IN, /* card detect */ |
42 | /* display */ | |
43 | PA5_PF_LSCLK, | |
44 | PA6_PF_LD0, | |
45 | PA7_PF_LD1, | |
46 | PA8_PF_LD2, | |
47 | PA9_PF_LD3, | |
48 | PA10_PF_LD4, | |
49 | PA11_PF_LD5, | |
50 | PA12_PF_LD6, | |
51 | PA13_PF_LD7, | |
52 | PA14_PF_LD8, | |
53 | PA15_PF_LD9, | |
54 | PA16_PF_LD10, | |
55 | PA17_PF_LD11, | |
56 | PA18_PF_LD12, | |
57 | PA19_PF_LD13, | |
58 | PA20_PF_LD14, | |
59 | PA21_PF_LD15, | |
60 | PA22_PF_LD16, | |
61 | PA23_PF_LD17, | |
62 | PA24_PF_REV, | |
63 | PA25_PF_CLS, | |
64 | PA26_PF_PS, | |
65 | PA27_PF_SPL_SPR, | |
66 | PA28_PF_HSYNC, | |
67 | PA29_PF_VSYNC, | |
68 | PA30_PF_CONTRAST, | |
69 | PA31_PF_OE_ACD, | |
70 | /* | |
71 | * it seems the data line misses a pullup, so we must enable | |
72 | * the internal pullup as a local workaround | |
73 | */ | |
74 | PD17_PF_I2C_DATA | GPIO_PUEN, | |
75 | PD18_PF_I2C_CLK, | |
76 | /* Camera */ | |
77 | PB10_PF_CSI_D0, | |
78 | PB11_PF_CSI_D1, | |
79 | PB12_PF_CSI_D2, | |
80 | PB13_PF_CSI_D3, | |
81 | PB14_PF_CSI_D4, | |
82 | PB15_PF_CSI_MCLK, | |
83 | PB16_PF_CSI_PIXCLK, | |
84 | PB17_PF_CSI_D5, | |
85 | PB18_PF_CSI_D6, | |
86 | PB19_PF_CSI_D7, | |
87 | PB20_PF_CSI_VSYNC, | |
88 | PB21_PF_CSI_HSYNC, | |
7c107dcb SH |
89 | }; |
90 | ||
f231ea44 SH |
91 | static int pcm970_sdhc2_get_ro(struct device *dev) |
92 | { | |
93 | return gpio_get_value(GPIO_PORTC + 28); | |
94 | } | |
95 | ||
7c107dcb SH |
96 | static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data) |
97 | { | |
98 | int ret; | |
99 | ||
f231ea44 | 100 | ret = request_irq(IRQ_GPIOC(29), detect_irq, IRQF_TRIGGER_FALLING, |
7c107dcb SH |
101 | "imx-mmc-detect", data); |
102 | if (ret) | |
f231ea44 | 103 | return ret; |
7c107dcb SH |
104 | |
105 | ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro"); | |
f231ea44 SH |
106 | if (ret) { |
107 | free_irq(IRQ_GPIOC(29), data); | |
108 | return ret; | |
109 | } | |
7c107dcb | 110 | |
7c107dcb SH |
111 | gpio_direction_input(GPIO_PORTC + 28); |
112 | ||
113 | return 0; | |
7c107dcb SH |
114 | } |
115 | ||
116 | static void pcm970_sdhc2_exit(struct device *dev, void *data) | |
117 | { | |
118 | free_irq(IRQ_GPIOC(29), data); | |
119 | gpio_free(GPIO_PORTC + 28); | |
7c107dcb SH |
120 | } |
121 | ||
122 | static struct imxmmc_platform_data sdhc_pdata = { | |
123 | .get_ro = pcm970_sdhc2_get_ro, | |
124 | .init = pcm970_sdhc2_init, | |
125 | .exit = pcm970_sdhc2_exit, | |
126 | }; | |
127 | ||
9db973a5 SH |
128 | /* |
129 | * Connected is a portrait Sharp-QVGA display | |
130 | * of type: LQ035Q7DH06 | |
131 | */ | |
132 | static struct imx_fb_platform_data pcm038_fb_data = { | |
133 | .pixclock = 188679, /* in ps (5.3MHz) */ | |
134 | .xres = 240, | |
135 | .yres = 320, | |
136 | ||
137 | .bpp = 16, | |
138 | .hsync_len = 7, | |
139 | .left_margin = 5, | |
140 | .right_margin = 16, | |
141 | ||
142 | .vsync_len = 1, | |
143 | .upper_margin = 7, | |
144 | .lower_margin = 9, | |
145 | .fixed_screen_cpu = 0, | |
146 | ||
147 | /* | |
148 | * - HSYNC active high | |
149 | * - VSYNC active high | |
150 | * - clk notenabled while idle | |
151 | * - clock not inverted | |
152 | * - data not inverted | |
153 | * - data enable low active | |
154 | * - enable sharp mode | |
155 | */ | |
156 | .pcr = 0xFA0080C0, | |
157 | .pwmr = 0x00A903FF, | |
158 | .lscr1 = 0x00120300, | |
159 | .dmacr = 0x00020010, | |
9db973a5 SH |
160 | }; |
161 | ||
ff6552e4 JB |
162 | /* |
163 | * system init for baseboard usage. Will be called by pcm038 init. | |
164 | * | |
165 | * Add platform devices present on this baseboard and init | |
166 | * them from CPU side as far as required to use them later on | |
167 | */ | |
168 | void __init pcm970_baseboard_init(void) | |
169 | { | |
f231ea44 SH |
170 | mxc_gpio_setup_multiple_pins(pcm970_pins, ARRAY_SIZE(pcm970_pins), |
171 | "PCM970"); | |
172 | ||
9db973a5 | 173 | mxc_register_device(&mxc_fb_device, &pcm038_fb_data); |
7c107dcb | 174 | mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata); |
ff6552e4 | 175 | } |