Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[pandora-kernel.git] / arch / arm / mach-imx / pcm970-baseboard.c
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/gpio.h>
20 #include <linux/irq.h>
21 #include <linux/platform_device.h>
22 #include <linux/can/platform/sja1000.h>
23
24 #include <asm/mach/arch.h>
25
26 #include <mach/common.h>
27 #include <mach/iomux-mx27.h>
28 #include <mach/hardware.h>
29
30 #include "devices-imx27.h"
31
32 static const int pcm970_pins[] __initconst = {
33         /* SDHC */
34         PB4_PF_SD2_D0,
35         PB5_PF_SD2_D1,
36         PB6_PF_SD2_D2,
37         PB7_PF_SD2_D3,
38         PB8_PF_SD2_CMD,
39         PB9_PF_SD2_CLK,
40         /* display */
41         PA5_PF_LSCLK,
42         PA6_PF_LD0,
43         PA7_PF_LD1,
44         PA8_PF_LD2,
45         PA9_PF_LD3,
46         PA10_PF_LD4,
47         PA11_PF_LD5,
48         PA12_PF_LD6,
49         PA13_PF_LD7,
50         PA14_PF_LD8,
51         PA15_PF_LD9,
52         PA16_PF_LD10,
53         PA17_PF_LD11,
54         PA18_PF_LD12,
55         PA19_PF_LD13,
56         PA20_PF_LD14,
57         PA21_PF_LD15,
58         PA22_PF_LD16,
59         PA23_PF_LD17,
60         PA24_PF_REV,
61         PA25_PF_CLS,
62         PA26_PF_PS,
63         PA27_PF_SPL_SPR,
64         PA28_PF_HSYNC,
65         PA29_PF_VSYNC,
66         PA30_PF_CONTRAST,
67         PA31_PF_OE_ACD,
68         /*
69          * it seems the data line misses a pullup, so we must enable
70          * the internal pullup as a local workaround
71          */
72         PD17_PF_I2C_DATA | GPIO_PUEN,
73         PD18_PF_I2C_CLK,
74         /* Camera */
75         PB10_PF_CSI_D0,
76         PB11_PF_CSI_D1,
77         PB12_PF_CSI_D2,
78         PB13_PF_CSI_D3,
79         PB14_PF_CSI_D4,
80         PB15_PF_CSI_MCLK,
81         PB16_PF_CSI_PIXCLK,
82         PB17_PF_CSI_D5,
83         PB18_PF_CSI_D6,
84         PB19_PF_CSI_D7,
85         PB20_PF_CSI_VSYNC,
86         PB21_PF_CSI_HSYNC,
87 };
88
89 static int pcm970_sdhc2_get_ro(struct device *dev)
90 {
91         return gpio_get_value(GPIO_PORTC + 28);
92 }
93
94 static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data)
95 {
96         int ret;
97
98         ret = request_irq(IRQ_GPIOC(29), detect_irq, IRQF_TRIGGER_FALLING,
99                                 "imx-mmc-detect", data);
100         if (ret)
101                 return ret;
102
103         ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro");
104         if (ret) {
105                 free_irq(IRQ_GPIOC(29), data);
106                 return ret;
107         }
108
109         gpio_direction_input(GPIO_PORTC + 28);
110
111         return 0;
112 }
113
114 static void pcm970_sdhc2_exit(struct device *dev, void *data)
115 {
116         free_irq(IRQ_GPIOC(29), data);
117         gpio_free(GPIO_PORTC + 28);
118 }
119
120 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
121         .get_ro = pcm970_sdhc2_get_ro,
122         .init = pcm970_sdhc2_init,
123         .exit = pcm970_sdhc2_exit,
124 };
125
126 static struct imx_fb_videomode pcm970_modes[] = {
127         {
128                 .mode = {
129                         .name           = "Sharp-LQ035Q7",
130                         .refresh        = 60,
131                         .xres           = 240,
132                         .yres           = 320,
133                         .pixclock       = 188679, /* in ps (5.3MHz) */
134                         .hsync_len      = 7,
135                         .left_margin    = 5,
136                         .right_margin   = 16,
137                         .vsync_len      = 1,
138                         .upper_margin   = 7,
139                         .lower_margin   = 9,
140                 },
141                 /*
142                  * - HSYNC active high
143                  * - VSYNC active high
144                  * - clk notenabled while idle
145                  * - clock not inverted
146                  * - data not inverted
147                  * - data enable low active
148                  * - enable sharp mode
149                  */
150                 .pcr            = 0xF00080C0,
151                 .bpp            = 16,
152         }, {
153                 .mode = {
154                         .name           = "TX090",
155                         .refresh        = 60,
156                         .xres           = 240,
157                         .yres           = 320,
158                         .pixclock       = 38255,
159                         .left_margin    = 144,
160                         .right_margin   = 0,
161                         .upper_margin   = 7,
162                         .lower_margin   = 40,
163                         .hsync_len      = 96,
164                         .vsync_len      = 1,
165                 },
166                 /*
167                  * - HSYNC active low (1 << 22)
168                  * - VSYNC active low (1 << 23)
169                  * - clk notenabled while idle
170                  * - clock not inverted
171                  * - data not inverted
172                  * - data enable low active
173                  * - enable sharp mode
174                  */
175                 .pcr = 0xF0008080 | (1<<22) | (1<<23) | (1<<19),
176                 .bpp = 32,
177         },
178 };
179
180 static const struct imx_fb_platform_data pcm038_fb_data __initconst = {
181         .mode = pcm970_modes,
182         .num_modes = ARRAY_SIZE(pcm970_modes),
183
184         .pwmr           = 0x00A903FF,
185         .lscr1          = 0x00120300,
186         .dmacr          = 0x00020010,
187 };
188
189 static struct resource pcm970_sja1000_resources[] = {
190         {
191                 .start   = MX27_CS4_BASE_ADDR,
192                 .end     = MX27_CS4_BASE_ADDR + 0x100 - 1,
193                 .flags   = IORESOURCE_MEM,
194         }, {
195                 .start   = IRQ_GPIOE(19),
196                 .end     = IRQ_GPIOE(19),
197                 .flags   = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
198         },
199 };
200
201 static struct sja1000_platform_data pcm970_sja1000_platform_data = {
202         .osc_freq       = 16000000,
203         .ocr            = OCR_TX1_PULLDOWN | OCR_TX0_PUSHPULL,
204         .cdr            = CDR_CBP,
205 };
206
207 static struct platform_device pcm970_sja1000 = {
208         .name = "sja1000_platform",
209         .dev = {
210                 .platform_data = &pcm970_sja1000_platform_data,
211         },
212         .resource = pcm970_sja1000_resources,
213         .num_resources = ARRAY_SIZE(pcm970_sja1000_resources),
214 };
215
216 /*
217  * system init for baseboard usage. Will be called by pcm038 init.
218  *
219  * Add platform devices present on this baseboard and init
220  * them from CPU side as far as required to use them later on
221  */
222 void __init pcm970_baseboard_init(void)
223 {
224         mxc_gpio_setup_multiple_pins(pcm970_pins, ARRAY_SIZE(pcm970_pins),
225                         "PCM970");
226
227         imx27_add_imx_fb(&pcm038_fb_data);
228         mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_IN);
229         imx27_add_mxc_mmc(1, &sdhc_pdata);
230         platform_device_register(&pcm970_sja1000);
231 }