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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 | ||
7c107dcb SH |
19 | #include <linux/gpio.h> |
20 | #include <linux/irq.h> | |
bff0b53b | 21 | #include <linux/platform_device.h> |
61b032ef | 22 | #include <linux/can/platform/sja1000.h> |
9db973a5 | 23 | |
ff6552e4 JB |
24 | #include <asm/mach/arch.h> |
25 | ||
e3372474 | 26 | #include "common.h" |
ad851bff | 27 | #include "devices-imx27.h" |
50f2de61 | 28 | #include "hardware.h" |
267dd34c | 29 | #include "iomux-mx27.h" |
9db973a5 | 30 | |
6c80ee51 | 31 | static const int pcm970_pins[] __initconst = { |
f231ea44 | 32 | /* SDHC */ |
7c107dcb SH |
33 | PB4_PF_SD2_D0, |
34 | PB5_PF_SD2_D1, | |
35 | PB6_PF_SD2_D2, | |
36 | PB7_PF_SD2_D3, | |
37 | PB8_PF_SD2_CMD, | |
38 | PB9_PF_SD2_CLK, | |
f231ea44 SH |
39 | /* display */ |
40 | PA5_PF_LSCLK, | |
41 | PA6_PF_LD0, | |
42 | PA7_PF_LD1, | |
43 | PA8_PF_LD2, | |
44 | PA9_PF_LD3, | |
45 | PA10_PF_LD4, | |
46 | PA11_PF_LD5, | |
47 | PA12_PF_LD6, | |
48 | PA13_PF_LD7, | |
49 | PA14_PF_LD8, | |
50 | PA15_PF_LD9, | |
51 | PA16_PF_LD10, | |
52 | PA17_PF_LD11, | |
53 | PA18_PF_LD12, | |
54 | PA19_PF_LD13, | |
55 | PA20_PF_LD14, | |
56 | PA21_PF_LD15, | |
57 | PA22_PF_LD16, | |
58 | PA23_PF_LD17, | |
59 | PA24_PF_REV, | |
60 | PA25_PF_CLS, | |
61 | PA26_PF_PS, | |
62 | PA27_PF_SPL_SPR, | |
63 | PA28_PF_HSYNC, | |
64 | PA29_PF_VSYNC, | |
65 | PA30_PF_CONTRAST, | |
66 | PA31_PF_OE_ACD, | |
67 | /* | |
68 | * it seems the data line misses a pullup, so we must enable | |
69 | * the internal pullup as a local workaround | |
70 | */ | |
71 | PD17_PF_I2C_DATA | GPIO_PUEN, | |
72 | PD18_PF_I2C_CLK, | |
73 | /* Camera */ | |
74 | PB10_PF_CSI_D0, | |
75 | PB11_PF_CSI_D1, | |
76 | PB12_PF_CSI_D2, | |
77 | PB13_PF_CSI_D3, | |
78 | PB14_PF_CSI_D4, | |
79 | PB15_PF_CSI_MCLK, | |
80 | PB16_PF_CSI_PIXCLK, | |
81 | PB17_PF_CSI_D5, | |
82 | PB18_PF_CSI_D6, | |
83 | PB19_PF_CSI_D7, | |
84 | PB20_PF_CSI_VSYNC, | |
85 | PB21_PF_CSI_HSYNC, | |
7c107dcb SH |
86 | }; |
87 | ||
f231ea44 SH |
88 | static int pcm970_sdhc2_get_ro(struct device *dev) |
89 | { | |
90 | return gpio_get_value(GPIO_PORTC + 28); | |
91 | } | |
92 | ||
7c107dcb SH |
93 | static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data) |
94 | { | |
95 | int ret; | |
96 | ||
438196c3 SG |
97 | ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq, |
98 | IRQF_TRIGGER_FALLING, "imx-mmc-detect", data); | |
7c107dcb | 99 | if (ret) |
f231ea44 | 100 | return ret; |
7c107dcb SH |
101 | |
102 | ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro"); | |
f231ea44 | 103 | if (ret) { |
438196c3 | 104 | free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data); |
f231ea44 SH |
105 | return ret; |
106 | } | |
7c107dcb | 107 | |
7c107dcb SH |
108 | gpio_direction_input(GPIO_PORTC + 28); |
109 | ||
110 | return 0; | |
7c107dcb SH |
111 | } |
112 | ||
113 | static void pcm970_sdhc2_exit(struct device *dev, void *data) | |
114 | { | |
438196c3 | 115 | free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data); |
7c107dcb | 116 | gpio_free(GPIO_PORTC + 28); |
7c107dcb SH |
117 | } |
118 | ||
9d3d945a | 119 | static const struct imxmmc_platform_data sdhc_pdata __initconst = { |
7c107dcb SH |
120 | .get_ro = pcm970_sdhc2_get_ro, |
121 | .init = pcm970_sdhc2_init, | |
122 | .exit = pcm970_sdhc2_exit, | |
123 | }; | |
124 | ||
343684ff SH |
125 | static struct imx_fb_videomode pcm970_modes[] = { |
126 | { | |
127 | .mode = { | |
128 | .name = "Sharp-LQ035Q7", | |
129 | .refresh = 60, | |
130 | .xres = 240, | |
131 | .yres = 320, | |
132 | .pixclock = 188679, /* in ps (5.3MHz) */ | |
133 | .hsync_len = 7, | |
134 | .left_margin = 5, | |
135 | .right_margin = 16, | |
136 | .vsync_len = 1, | |
137 | .upper_margin = 7, | |
138 | .lower_margin = 9, | |
139 | }, | |
140 | /* | |
141 | * - HSYNC active high | |
142 | * - VSYNC active high | |
143 | * - clk notenabled while idle | |
144 | * - clock not inverted | |
145 | * - data not inverted | |
146 | * - data enable low active | |
147 | * - enable sharp mode | |
148 | */ | |
149 | .pcr = 0xF00080C0, | |
150 | .bpp = 16, | |
151 | }, { | |
152 | .mode = { | |
153 | .name = "TX090", | |
154 | .refresh = 60, | |
155 | .xres = 240, | |
156 | .yres = 320, | |
157 | .pixclock = 38255, | |
158 | .left_margin = 144, | |
159 | .right_margin = 0, | |
160 | .upper_margin = 7, | |
161 | .lower_margin = 40, | |
162 | .hsync_len = 96, | |
163 | .vsync_len = 1, | |
164 | }, | |
165 | /* | |
166 | * - HSYNC active low (1 << 22) | |
167 | * - VSYNC active low (1 << 23) | |
168 | * - clk notenabled while idle | |
169 | * - clock not inverted | |
170 | * - data not inverted | |
171 | * - data enable low active | |
172 | * - enable sharp mode | |
173 | */ | |
174 | .pcr = 0xF0008080 | (1<<22) | (1<<23) | (1<<19), | |
175 | .bpp = 32, | |
176 | }, | |
177 | }; | |
9db973a5 | 178 | |
ad851bff | 179 | static const struct imx_fb_platform_data pcm038_fb_data __initconst = { |
343684ff SH |
180 | .mode = pcm970_modes, |
181 | .num_modes = ARRAY_SIZE(pcm970_modes), | |
9db973a5 | 182 | |
9db973a5 SH |
183 | .pwmr = 0x00A903FF, |
184 | .lscr1 = 0x00120300, | |
185 | .dmacr = 0x00020010, | |
9db973a5 SH |
186 | }; |
187 | ||
61b032ef SH |
188 | static struct resource pcm970_sja1000_resources[] = { |
189 | { | |
3f35d1f5 UKK |
190 | .start = MX27_CS4_BASE_ADDR, |
191 | .end = MX27_CS4_BASE_ADDR + 0x100 - 1, | |
61b032ef SH |
192 | .flags = IORESOURCE_MEM, |
193 | }, { | |
438196c3 | 194 | /* irq number is run-time assigned */ |
61b032ef SH |
195 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE, |
196 | }, | |
197 | }; | |
198 | ||
214b4310 | 199 | static struct sja1000_platform_data pcm970_sja1000_platform_data = { |
56e6943b WG |
200 | .osc_freq = 16000000, |
201 | .ocr = OCR_TX1_PULLDOWN | OCR_TX0_PUSHPULL, | |
202 | .cdr = CDR_CBP, | |
61b032ef SH |
203 | }; |
204 | ||
205 | static struct platform_device pcm970_sja1000 = { | |
206 | .name = "sja1000_platform", | |
207 | .dev = { | |
208 | .platform_data = &pcm970_sja1000_platform_data, | |
209 | }, | |
210 | .resource = pcm970_sja1000_resources, | |
211 | .num_resources = ARRAY_SIZE(pcm970_sja1000_resources), | |
212 | }; | |
213 | ||
ff6552e4 JB |
214 | /* |
215 | * system init for baseboard usage. Will be called by pcm038 init. | |
216 | * | |
217 | * Add platform devices present on this baseboard and init | |
218 | * them from CPU side as far as required to use them later on | |
219 | */ | |
220 | void __init pcm970_baseboard_init(void) | |
221 | { | |
f231ea44 SH |
222 | mxc_gpio_setup_multiple_pins(pcm970_pins, ARRAY_SIZE(pcm970_pins), |
223 | "PCM970"); | |
224 | ||
ad851bff | 225 | imx27_add_imx_fb(&pcm038_fb_data); |
a90c31a3 | 226 | mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_IN); |
9d3d945a | 227 | imx27_add_mxc_mmc(1, &sdhc_pdata); |
438196c3 SG |
228 | pcm970_sja1000_resources[1].start = gpio_to_irq(IMX_GPIO_NR(5, 19)); |
229 | pcm970_sja1000_resources[1].end = gpio_to_irq(IMX_GPIO_NR(5, 19)); | |
61b032ef | 230 | platform_device_register(&pcm970_sja1000); |
ff6552e4 | 231 | } |