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Juergen Beisertff6552e2008-07-05 10:03:01 +02001/*
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
Sascha Hauer7c107dc2008-12-19 14:32:07 +010019#include <linux/gpio.h>
20#include <linux/irq.h>
Sascha Hauerbff0b532009-04-29 09:17:03 +020021#include <linux/platform_device.h>
Sascha Hauer61b032e2009-06-23 13:21:42 +020022#include <linux/can/platform/sja1000.h>
Sascha Hauer9db973a2009-01-15 12:44:45 +010023
Juergen Beisertff6552e2008-07-05 10:03:01 +020024#include <asm/mach/arch.h>
25
Sascha Hauer9db973a2009-01-15 12:44:45 +010026#include <mach/common.h>
Uwe Kleine-Könige835d882010-02-16 11:07:49 +010027#include <mach/iomux-mx27.h>
Sascha Hauerbff0b532009-04-29 09:17:03 +020028#include <mach/imxfb.h>
29#include <mach/hardware.h>
30#include <mach/mmc.h>
Sascha Hauer9db973a2009-01-15 12:44:45 +010031
32#include "devices.h"
33
Uwe Kleine-König6c80ee52010-09-28 21:53:31 +020034static const int pcm970_pins[] __initconst = {
Sascha Hauerf231ea42009-04-16 15:45:45 +020035 /* SDHC */
Sascha Hauer7c107dc2008-12-19 14:32:07 +010036 PB4_PF_SD2_D0,
37 PB5_PF_SD2_D1,
38 PB6_PF_SD2_D2,
39 PB7_PF_SD2_D3,
40 PB8_PF_SD2_CMD,
41 PB9_PF_SD2_CLK,
Sascha Hauerf231ea42009-04-16 15:45:45 +020042 /* 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,
Sascha Hauer7c107dc2008-12-19 14:32:07 +010089};
90
Sascha Hauerf231ea42009-04-16 15:45:45 +020091static int pcm970_sdhc2_get_ro(struct device *dev)
92{
93 return gpio_get_value(GPIO_PORTC + 28);
94}
95
Sascha Hauer7c107dc2008-12-19 14:32:07 +010096static int pcm970_sdhc2_init(struct device *dev, irq_handler_t detect_irq, void *data)
97{
98 int ret;
99
Sascha Hauerf231ea42009-04-16 15:45:45 +0200100 ret = request_irq(IRQ_GPIOC(29), detect_irq, IRQF_TRIGGER_FALLING,
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100101 "imx-mmc-detect", data);
102 if (ret)
Sascha Hauerf231ea42009-04-16 15:45:45 +0200103 return ret;
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100104
105 ret = gpio_request(GPIO_PORTC + 28, "imx-mmc-ro");
Sascha Hauerf231ea42009-04-16 15:45:45 +0200106 if (ret) {
107 free_irq(IRQ_GPIOC(29), data);
108 return ret;
109 }
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100110
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100111 gpio_direction_input(GPIO_PORTC + 28);
112
113 return 0;
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100114}
115
116static void pcm970_sdhc2_exit(struct device *dev, void *data)
117{
118 free_irq(IRQ_GPIOC(29), data);
119 gpio_free(GPIO_PORTC + 28);
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100120}
121
122static 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
Sascha Hauer343684f2009-03-19 08:25:41 +0100128static struct imx_fb_videomode pcm970_modes[] = {
129 {
130 .mode = {
131 .name = "Sharp-LQ035Q7",
132 .refresh = 60,
133 .xres = 240,
134 .yres = 320,
135 .pixclock = 188679, /* in ps (5.3MHz) */
136 .hsync_len = 7,
137 .left_margin = 5,
138 .right_margin = 16,
139 .vsync_len = 1,
140 .upper_margin = 7,
141 .lower_margin = 9,
142 },
143 /*
144 * - HSYNC active high
145 * - VSYNC active high
146 * - clk notenabled while idle
147 * - clock not inverted
148 * - data not inverted
149 * - data enable low active
150 * - enable sharp mode
151 */
152 .pcr = 0xF00080C0,
153 .bpp = 16,
154 }, {
155 .mode = {
156 .name = "TX090",
157 .refresh = 60,
158 .xres = 240,
159 .yres = 320,
160 .pixclock = 38255,
161 .left_margin = 144,
162 .right_margin = 0,
163 .upper_margin = 7,
164 .lower_margin = 40,
165 .hsync_len = 96,
166 .vsync_len = 1,
167 },
168 /*
169 * - HSYNC active low (1 << 22)
170 * - VSYNC active low (1 << 23)
171 * - clk notenabled while idle
172 * - clock not inverted
173 * - data not inverted
174 * - data enable low active
175 * - enable sharp mode
176 */
177 .pcr = 0xF0008080 | (1<<22) | (1<<23) | (1<<19),
178 .bpp = 32,
179 },
180};
181
Sascha Hauer9db973a2009-01-15 12:44:45 +0100182static struct imx_fb_platform_data pcm038_fb_data = {
Sascha Hauer343684f2009-03-19 08:25:41 +0100183 .mode = pcm970_modes,
184 .num_modes = ARRAY_SIZE(pcm970_modes),
Sascha Hauer9db973a2009-01-15 12:44:45 +0100185
Sascha Hauer9db973a2009-01-15 12:44:45 +0100186 .pwmr = 0x00A903FF,
187 .lscr1 = 0x00120300,
188 .dmacr = 0x00020010,
Sascha Hauer9db973a2009-01-15 12:44:45 +0100189};
190
Sascha Hauer61b032e2009-06-23 13:21:42 +0200191static struct resource pcm970_sja1000_resources[] = {
192 {
Uwe Kleine-König3f35d1f2009-12-09 11:32:11 +0100193 .start = MX27_CS4_BASE_ADDR,
194 .end = MX27_CS4_BASE_ADDR + 0x100 - 1,
Sascha Hauer61b032e2009-06-23 13:21:42 +0200195 .flags = IORESOURCE_MEM,
196 }, {
197 .start = IRQ_GPIOE(19),
198 .end = IRQ_GPIOE(19),
199 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
200 },
201};
202
Uwe Kleine-König214b4312010-09-28 21:55:22 +0200203static struct sja1000_platform_data pcm970_sja1000_platform_data = {
Wolfgang Grandegger56e6943b92010-05-17 22:39:48 -0700204 .osc_freq = 16000000,
205 .ocr = OCR_TX1_PULLDOWN | OCR_TX0_PUSHPULL,
206 .cdr = CDR_CBP,
Sascha Hauer61b032e2009-06-23 13:21:42 +0200207};
208
209static struct platform_device pcm970_sja1000 = {
210 .name = "sja1000_platform",
211 .dev = {
212 .platform_data = &pcm970_sja1000_platform_data,
213 },
214 .resource = pcm970_sja1000_resources,
215 .num_resources = ARRAY_SIZE(pcm970_sja1000_resources),
216};
217
Juergen Beisertff6552e2008-07-05 10:03:01 +0200218/*
219 * system init for baseboard usage. Will be called by pcm038 init.
220 *
221 * Add platform devices present on this baseboard and init
222 * them from CPU side as far as required to use them later on
223 */
224void __init pcm970_baseboard_init(void)
225{
Sascha Hauerf231ea42009-04-16 15:45:45 +0200226 mxc_gpio_setup_multiple_pins(pcm970_pins, ARRAY_SIZE(pcm970_pins),
227 "PCM970");
228
Sascha Hauer9db973a2009-01-15 12:44:45 +0100229 mxc_register_device(&mxc_fb_device, &pcm038_fb_data);
Sascha Hauera90c31a2009-10-06 09:18:17 +0200230 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_IN);
Sascha Hauer7c107dc2008-12-19 14:32:07 +0100231 mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
Sascha Hauer61b032e2009-06-23 13:21:42 +0200232 platform_device_register(&pcm970_sja1000);
Juergen Beisertff6552e2008-07-05 10:03:01 +0200233}