1 /*
2  * linux/arch/arm/mach-omap1/board-palmte.c
3  *
4  * Modified from board-generic.c
5  *
6  * Support for the Palm Tungsten E PDA.
7  *
8  * Original version : Laurent Gonzalez
9  *
10  * Maintainers : http://palmtelinux.sf.net
11  *                palmtelinux-developpers@lists.sf.net
12  *
13  * Copyright (c) 2006 Andrzej Zaborowski  <balrog@zabor.org>
14  *
15  * This program is free software; you can redistribute it and/or modify
16  * it under the terms of the GNU General Public License version 2 as
17  * published by the Free Software Foundation.
18  */
19 #include <linux/gpio.h>
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/input.h>
23 #include <linux/platform_device.h>
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/partitions.h>
26 #include <linux/mtd/physmap.h>
27 #include <linux/spi/spi.h>
28 #include <linux/interrupt.h>
29 #include <linux/apm-emulation.h>
30 #include <linux/omapfb.h>
31 #include <linux/platform_data/omap1_bl.h>
32 
33 #include <asm/mach-types.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 
37 #include <mach/flash.h>
38 #include <mach/mux.h>
39 #include <mach/tc.h>
40 #include <linux/omap-dma.h>
41 #include <linux/platform_data/keypad-omap.h>
42 
43 #include <mach/hardware.h>
44 #include <mach/usb.h>
45 
46 #include "common.h"
47 
48 #define PALMTE_USBDETECT_GPIO	0
49 #define PALMTE_USB_OR_DC_GPIO	1
50 #define PALMTE_TSC_GPIO		4
51 #define PALMTE_PINTDAV_GPIO	6
52 #define PALMTE_MMC_WP_GPIO	8
53 #define PALMTE_MMC_POWER_GPIO	9
54 #define PALMTE_HDQ_GPIO		11
55 #define PALMTE_HEADPHONES_GPIO	14
56 #define PALMTE_SPEAKER_GPIO	15
57 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
58 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
59 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
60 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
61 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)
62 
63 static const unsigned int palmte_keymap[] = {
64 	KEY(0, 0, KEY_F1),		/* Calendar */
65 	KEY(1, 0, KEY_F2),		/* Contacts */
66 	KEY(2, 0, KEY_F3),		/* Tasks List */
67 	KEY(3, 0, KEY_F4),		/* Note Pad */
68 	KEY(4, 0, KEY_POWER),
69 	KEY(0, 1, KEY_LEFT),
70 	KEY(1, 1, KEY_DOWN),
71 	KEY(2, 1, KEY_UP),
72 	KEY(3, 1, KEY_RIGHT),
73 	KEY(4, 1, KEY_ENTER),
74 };
75 
76 static const struct matrix_keymap_data palmte_keymap_data = {
77 	.keymap		= palmte_keymap,
78 	.keymap_size	= ARRAY_SIZE(palmte_keymap),
79 };
80 
81 static struct omap_kp_platform_data palmte_kp_data = {
82 	.rows	= 8,
83 	.cols	= 8,
84 	.keymap_data = &palmte_keymap_data,
85 	.rep	= true,
86 	.delay	= 12,
87 };
88 
89 static struct resource palmte_kp_resources[] = {
90 	[0]	= {
91 		.start	= INT_KEYBOARD,
92 		.end	= INT_KEYBOARD,
93 		.flags	= IORESOURCE_IRQ,
94 	},
95 };
96 
97 static struct platform_device palmte_kp_device = {
98 	.name		= "omap-keypad",
99 	.id		= -1,
100 	.dev		= {
101 		.platform_data	= &palmte_kp_data,
102 	},
103 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
104 	.resource	= palmte_kp_resources,
105 };
106 
107 static struct mtd_partition palmte_rom_partitions[] = {
108 	/* PalmOS "Small ROM", contains the bootloader and the debugger */
109 	{
110 		.name		= "smallrom",
111 		.offset		= 0,
112 		.size		= 0xa000,
113 		.mask_flags	= MTD_WRITEABLE,
114 	},
115 	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
116 	{
117 		.name		= "bigrom",
118 		.offset		= SZ_128K,
119 		/*
120 		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
121 		 * 0x7b0000 bytes in the English-only ("enUS") version.
122 		 */
123 		.size		= 0x7b0000,
124 		.mask_flags	= MTD_WRITEABLE,
125 	},
126 };
127 
128 static struct physmap_flash_data palmte_rom_data = {
129 	.width		= 2,
130 	.set_vpp	= omap1_set_vpp,
131 	.parts		= palmte_rom_partitions,
132 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
133 };
134 
135 static struct resource palmte_rom_resource = {
136 	.start		= OMAP_CS0_PHYS,
137 	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
138 	.flags		= IORESOURCE_MEM,
139 };
140 
141 static struct platform_device palmte_rom_device = {
142 	.name		= "physmap-flash",
143 	.id		= -1,
144 	.dev		= {
145 		.platform_data	= &palmte_rom_data,
146 	},
147 	.num_resources	= 1,
148 	.resource	= &palmte_rom_resource,
149 };
150 
151 static struct platform_device palmte_lcd_device = {
152 	.name		= "lcd_palmte",
153 	.id		= -1,
154 };
155 
156 static struct omap_backlight_config palmte_backlight_config = {
157 	.default_intensity	= 0xa0,
158 };
159 
160 static struct platform_device palmte_backlight_device = {
161 	.name		= "omap-bl",
162 	.id		= -1,
163 	.dev		= {
164 		.platform_data	= &palmte_backlight_config,
165 	},
166 };
167 
168 static struct platform_device *palmte_devices[] __initdata = {
169 	&palmte_rom_device,
170 	&palmte_kp_device,
171 	&palmte_lcd_device,
172 	&palmte_backlight_device,
173 };
174 
175 static struct omap_usb_config palmte_usb_config __initdata = {
176 	.register_dev	= 1,	/* Mini-B only receptacle */
177 	.hmc_mode	= 0,
178 	.pins[0]	= 2,
179 };
180 
181 static struct omap_lcd_config palmte_lcd_config __initdata = {
182 	.ctrl_name	= "internal",
183 };
184 
185 static struct spi_board_info palmte_spi_info[] __initdata = {
186 	{
187 		.modalias	= "tsc2102",
188 		.bus_num	= 2,	/* uWire (officially) */
189 		.chip_select	= 0,	/* As opposed to 3 */
190 		.max_speed_hz	= 8000000,
191 	},
192 };
193 
194 static void __init palmte_misc_gpio_setup(void)
195 {
196 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
197 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
198 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
199 		return;
200 	}
201 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
202 
203 	/* Set USB-or-DC-IN pin as input (unused) */
204 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
205 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
206 		return;
207 	}
208 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
209 }
210 
211 static void __init omap_palmte_init(void)
212 {
213 	/* mux pins for uarts */
214 	omap_cfg_reg(UART1_TX);
215 	omap_cfg_reg(UART1_RTS);
216 	omap_cfg_reg(UART2_TX);
217 	omap_cfg_reg(UART2_RTS);
218 	omap_cfg_reg(UART3_TX);
219 	omap_cfg_reg(UART3_RX);
220 
221 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
222 
223 	palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
224 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
225 	palmte_misc_gpio_setup();
226 	omap_serial_init();
227 	omap1_usb_init(&palmte_usb_config);
228 	omap_register_i2c_bus(1, 100, NULL, 0);
229 
230 	omapfb_set_lcd_config(&palmte_lcd_config);
231 }
232 
233 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
234 	.atag_offset	= 0x100,
235 	.map_io		= omap15xx_map_io,
236 	.init_early     = omap1_init_early,
237 	.init_irq	= omap1_init_irq,
238 	.init_machine	= omap_palmte_init,
239 	.init_late	= omap1_init_late,
240 	.init_time	= omap1_timer_init,
241 	.restart	= omap1_restart,
242 MACHINE_END
243