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 <mach/irda.h>
42 #include <linux/platform_data/keypad-omap.h>
43 
44 #include <mach/hardware.h>
45 #include <mach/usb.h>
46 
47 #include "common.h"
48 #include "dma.h"
49 
50 #define PALMTE_USBDETECT_GPIO	0
51 #define PALMTE_USB_OR_DC_GPIO	1
52 #define PALMTE_TSC_GPIO		4
53 #define PALMTE_PINTDAV_GPIO	6
54 #define PALMTE_MMC_WP_GPIO	8
55 #define PALMTE_MMC_POWER_GPIO	9
56 #define PALMTE_HDQ_GPIO		11
57 #define PALMTE_HEADPHONES_GPIO	14
58 #define PALMTE_SPEAKER_GPIO	15
59 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
60 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
61 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
62 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
63 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)
64 
65 static const unsigned int palmte_keymap[] = {
66 	KEY(0, 0, KEY_F1),		/* Calendar */
67 	KEY(1, 0, KEY_F2),		/* Contacts */
68 	KEY(2, 0, KEY_F3),		/* Tasks List */
69 	KEY(3, 0, KEY_F4),		/* Note Pad */
70 	KEY(4, 0, KEY_POWER),
71 	KEY(0, 1, KEY_LEFT),
72 	KEY(1, 1, KEY_DOWN),
73 	KEY(2, 1, KEY_UP),
74 	KEY(3, 1, KEY_RIGHT),
75 	KEY(4, 1, KEY_ENTER),
76 };
77 
78 static const struct matrix_keymap_data palmte_keymap_data = {
79 	.keymap		= palmte_keymap,
80 	.keymap_size	= ARRAY_SIZE(palmte_keymap),
81 };
82 
83 static struct omap_kp_platform_data palmte_kp_data = {
84 	.rows	= 8,
85 	.cols	= 8,
86 	.keymap_data = &palmte_keymap_data,
87 	.rep	= true,
88 	.delay	= 12,
89 };
90 
91 static struct resource palmte_kp_resources[] = {
92 	[0]	= {
93 		.start	= INT_KEYBOARD,
94 		.end	= INT_KEYBOARD,
95 		.flags	= IORESOURCE_IRQ,
96 	},
97 };
98 
99 static struct platform_device palmte_kp_device = {
100 	.name		= "omap-keypad",
101 	.id		= -1,
102 	.dev		= {
103 		.platform_data	= &palmte_kp_data,
104 	},
105 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
106 	.resource	= palmte_kp_resources,
107 };
108 
109 static struct mtd_partition palmte_rom_partitions[] = {
110 	/* PalmOS "Small ROM", contains the bootloader and the debugger */
111 	{
112 		.name		= "smallrom",
113 		.offset		= 0,
114 		.size		= 0xa000,
115 		.mask_flags	= MTD_WRITEABLE,
116 	},
117 	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
118 	{
119 		.name		= "bigrom",
120 		.offset		= SZ_128K,
121 		/*
122 		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
123 		 * 0x7b0000 bytes in the English-only ("enUS") version.
124 		 */
125 		.size		= 0x7b0000,
126 		.mask_flags	= MTD_WRITEABLE,
127 	},
128 };
129 
130 static struct physmap_flash_data palmte_rom_data = {
131 	.width		= 2,
132 	.set_vpp	= omap1_set_vpp,
133 	.parts		= palmte_rom_partitions,
134 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
135 };
136 
137 static struct resource palmte_rom_resource = {
138 	.start		= OMAP_CS0_PHYS,
139 	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
140 	.flags		= IORESOURCE_MEM,
141 };
142 
143 static struct platform_device palmte_rom_device = {
144 	.name		= "physmap-flash",
145 	.id		= -1,
146 	.dev		= {
147 		.platform_data	= &palmte_rom_data,
148 	},
149 	.num_resources	= 1,
150 	.resource	= &palmte_rom_resource,
151 };
152 
153 static struct platform_device palmte_lcd_device = {
154 	.name		= "lcd_palmte",
155 	.id		= -1,
156 };
157 
158 static struct omap_backlight_config palmte_backlight_config = {
159 	.default_intensity	= 0xa0,
160 };
161 
162 static struct platform_device palmte_backlight_device = {
163 	.name		= "omap-bl",
164 	.id		= -1,
165 	.dev		= {
166 		.platform_data	= &palmte_backlight_config,
167 	},
168 };
169 
170 static struct omap_irda_config palmte_irda_config = {
171 	.transceiver_cap	= IR_SIRMODE,
172 	.rx_channel		= OMAP_DMA_UART3_RX,
173 	.tx_channel		= OMAP_DMA_UART3_TX,
174 	.dest_start		= UART3_THR,
175 	.src_start		= UART3_RHR,
176 	.tx_trigger		= 0,
177 	.rx_trigger		= 0,
178 };
179 
180 static struct resource palmte_irda_resources[] = {
181 	[0]	= {
182 		.start	= INT_UART3,
183 		.end	= INT_UART3,
184 		.flags	= IORESOURCE_IRQ,
185 	},
186 };
187 
188 static struct platform_device palmte_irda_device = {
189 	.name		= "omapirda",
190 	.id		= -1,
191 	.dev		= {
192 		.platform_data	= &palmte_irda_config,
193 	},
194 	.num_resources	= ARRAY_SIZE(palmte_irda_resources),
195 	.resource	= palmte_irda_resources,
196 };
197 
198 static struct platform_device *palmte_devices[] __initdata = {
199 	&palmte_rom_device,
200 	&palmte_kp_device,
201 	&palmte_lcd_device,
202 	&palmte_backlight_device,
203 	&palmte_irda_device,
204 };
205 
206 static struct omap_usb_config palmte_usb_config __initdata = {
207 	.register_dev	= 1,	/* Mini-B only receptacle */
208 	.hmc_mode	= 0,
209 	.pins[0]	= 2,
210 };
211 
212 static struct omap_lcd_config palmte_lcd_config __initdata = {
213 	.ctrl_name	= "internal",
214 };
215 
216 static struct spi_board_info palmte_spi_info[] __initdata = {
217 	{
218 		.modalias	= "tsc2102",
219 		.bus_num	= 2,	/* uWire (officially) */
220 		.chip_select	= 0,	/* As opposed to 3 */
221 		.max_speed_hz	= 8000000,
222 	},
223 };
224 
225 static void __init palmte_misc_gpio_setup(void)
226 {
227 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
228 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
229 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
230 		return;
231 	}
232 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
233 
234 	/* Set USB-or-DC-IN pin as input (unused) */
235 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
236 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
237 		return;
238 	}
239 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
240 }
241 
242 static void __init omap_palmte_init(void)
243 {
244 	/* mux pins for uarts */
245 	omap_cfg_reg(UART1_TX);
246 	omap_cfg_reg(UART1_RTS);
247 	omap_cfg_reg(UART2_TX);
248 	omap_cfg_reg(UART2_RTS);
249 	omap_cfg_reg(UART3_TX);
250 	omap_cfg_reg(UART3_RX);
251 
252 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
253 
254 	palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
255 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
256 	palmte_misc_gpio_setup();
257 	omap_serial_init();
258 	omap1_usb_init(&palmte_usb_config);
259 	omap_register_i2c_bus(1, 100, NULL, 0);
260 
261 	omapfb_set_lcd_config(&palmte_lcd_config);
262 }
263 
264 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
265 	.atag_offset	= 0x100,
266 	.map_io		= omap15xx_map_io,
267 	.init_early     = omap1_init_early,
268 	.init_irq	= omap1_init_irq,
269 	.init_machine	= omap_palmte_init,
270 	.init_late	= omap1_init_late,
271 	.init_time	= omap1_timer_init,
272 	.restart	= omap1_restart,
273 MACHINE_END
274