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 
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35 
36 #include <plat/flash.h>
37 #include <plat/mux.h>
38 #include <plat/tc.h>
39 #include <plat/dma.h>
40 #include <plat/board.h>
41 #include <plat/irda.h>
42 #include <plat/keypad.h>
43 
44 #include <mach/hardware.h>
45 #include <mach/usb.h>
46 
47 #include "common.h"
48 
49 #define PALMTE_USBDETECT_GPIO	0
50 #define PALMTE_USB_OR_DC_GPIO	1
51 #define PALMTE_TSC_GPIO		4
52 #define PALMTE_PINTDAV_GPIO	6
53 #define PALMTE_MMC_WP_GPIO	8
54 #define PALMTE_MMC_POWER_GPIO	9
55 #define PALMTE_HDQ_GPIO		11
56 #define PALMTE_HEADPHONES_GPIO	14
57 #define PALMTE_SPEAKER_GPIO	15
58 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
59 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
60 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
61 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
62 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)
63 
64 static const unsigned int palmte_keymap[] = {
65 	KEY(0, 0, KEY_F1),		/* Calendar */
66 	KEY(1, 0, KEY_F2),		/* Contacts */
67 	KEY(2, 0, KEY_F3),		/* Tasks List */
68 	KEY(3, 0, KEY_F4),		/* Note Pad */
69 	KEY(4, 0, KEY_POWER),
70 	KEY(0, 1, KEY_LEFT),
71 	KEY(1, 1, KEY_DOWN),
72 	KEY(2, 1, KEY_UP),
73 	KEY(3, 1, KEY_RIGHT),
74 	KEY(4, 1, KEY_ENTER),
75 };
76 
77 static const struct matrix_keymap_data palmte_keymap_data = {
78 	.keymap		= palmte_keymap,
79 	.keymap_size	= ARRAY_SIZE(palmte_keymap),
80 };
81 
82 static struct omap_kp_platform_data palmte_kp_data = {
83 	.rows	= 8,
84 	.cols	= 8,
85 	.keymap_data = &palmte_keymap_data,
86 	.rep	= true,
87 	.delay	= 12,
88 };
89 
90 static struct resource palmte_kp_resources[] = {
91 	[0]	= {
92 		.start	= INT_KEYBOARD,
93 		.end	= INT_KEYBOARD,
94 		.flags	= IORESOURCE_IRQ,
95 	},
96 };
97 
98 static struct platform_device palmte_kp_device = {
99 	.name		= "omap-keypad",
100 	.id		= -1,
101 	.dev		= {
102 		.platform_data	= &palmte_kp_data,
103 	},
104 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
105 	.resource	= palmte_kp_resources,
106 };
107 
108 static struct mtd_partition palmte_rom_partitions[] = {
109 	/* PalmOS "Small ROM", contains the bootloader and the debugger */
110 	{
111 		.name		= "smallrom",
112 		.offset		= 0,
113 		.size		= 0xa000,
114 		.mask_flags	= MTD_WRITEABLE,
115 	},
116 	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
117 	{
118 		.name		= "bigrom",
119 		.offset		= SZ_128K,
120 		/*
121 		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
122 		 * 0x7b0000 bytes in the English-only ("enUS") version.
123 		 */
124 		.size		= 0x7b0000,
125 		.mask_flags	= MTD_WRITEABLE,
126 	},
127 };
128 
129 static struct physmap_flash_data palmte_rom_data = {
130 	.width		= 2,
131 	.set_vpp	= omap1_set_vpp,
132 	.parts		= palmte_rom_partitions,
133 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
134 };
135 
136 static struct resource palmte_rom_resource = {
137 	.start		= OMAP_CS0_PHYS,
138 	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
139 	.flags		= IORESOURCE_MEM,
140 };
141 
142 static struct platform_device palmte_rom_device = {
143 	.name		= "physmap-flash",
144 	.id		= -1,
145 	.dev		= {
146 		.platform_data	= &palmte_rom_data,
147 	},
148 	.num_resources	= 1,
149 	.resource	= &palmte_rom_resource,
150 };
151 
152 static struct platform_device palmte_lcd_device = {
153 	.name		= "lcd_palmte",
154 	.id		= -1,
155 };
156 
157 static struct omap_backlight_config palmte_backlight_config = {
158 	.default_intensity	= 0xa0,
159 };
160 
161 static struct platform_device palmte_backlight_device = {
162 	.name		= "omap-bl",
163 	.id		= -1,
164 	.dev		= {
165 		.platform_data	= &palmte_backlight_config,
166 	},
167 };
168 
169 static struct omap_irda_config palmte_irda_config = {
170 	.transceiver_cap	= IR_SIRMODE,
171 	.rx_channel		= OMAP_DMA_UART3_RX,
172 	.tx_channel		= OMAP_DMA_UART3_TX,
173 	.dest_start		= UART3_THR,
174 	.src_start		= UART3_RHR,
175 	.tx_trigger		= 0,
176 	.rx_trigger		= 0,
177 };
178 
179 static struct resource palmte_irda_resources[] = {
180 	[0]	= {
181 		.start	= INT_UART3,
182 		.end	= INT_UART3,
183 		.flags	= IORESOURCE_IRQ,
184 	},
185 };
186 
187 static struct platform_device palmte_irda_device = {
188 	.name		= "omapirda",
189 	.id		= -1,
190 	.dev		= {
191 		.platform_data	= &palmte_irda_config,
192 	},
193 	.num_resources	= ARRAY_SIZE(palmte_irda_resources),
194 	.resource	= palmte_irda_resources,
195 };
196 
197 static struct platform_device *palmte_devices[] __initdata = {
198 	&palmte_rom_device,
199 	&palmte_kp_device,
200 	&palmte_lcd_device,
201 	&palmte_backlight_device,
202 	&palmte_irda_device,
203 };
204 
205 static struct omap_usb_config palmte_usb_config __initdata = {
206 	.register_dev	= 1,	/* Mini-B only receptacle */
207 	.hmc_mode	= 0,
208 	.pins[0]	= 2,
209 };
210 
211 static struct omap_lcd_config palmte_lcd_config __initdata = {
212 	.ctrl_name	= "internal",
213 };
214 
215 static struct spi_board_info palmte_spi_info[] __initdata = {
216 	{
217 		.modalias	= "tsc2102",
218 		.bus_num	= 2,	/* uWire (officially) */
219 		.chip_select	= 0,	/* As opposed to 3 */
220 		.max_speed_hz	= 8000000,
221 	},
222 };
223 
224 static void __init palmte_misc_gpio_setup(void)
225 {
226 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
227 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
228 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
229 		return;
230 	}
231 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
232 
233 	/* Set USB-or-DC-IN pin as input (unused) */
234 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
235 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
236 		return;
237 	}
238 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
239 }
240 
241 static void __init omap_palmte_init(void)
242 {
243 	/* mux pins for uarts */
244 	omap_cfg_reg(UART1_TX);
245 	omap_cfg_reg(UART1_RTS);
246 	omap_cfg_reg(UART2_TX);
247 	omap_cfg_reg(UART2_RTS);
248 	omap_cfg_reg(UART3_TX);
249 	omap_cfg_reg(UART3_RX);
250 
251 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
252 
253 	palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
254 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
255 	palmte_misc_gpio_setup();
256 	omap_serial_init();
257 	omap1_usb_init(&palmte_usb_config);
258 	omap_register_i2c_bus(1, 100, NULL, 0);
259 
260 	omapfb_set_lcd_config(&palmte_lcd_config);
261 }
262 
263 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
264 	.atag_offset	= 0x100,
265 	.map_io		= omap15xx_map_io,
266 	.init_early     = omap1_init_early,
267 	.reserve	= omap_reserve,
268 	.init_irq	= omap1_init_irq,
269 	.init_machine	= omap_palmte_init,
270 	.init_late	= omap1_init_late,
271 	.timer		= &omap1_timer,
272 	.restart	= omap1_restart,
273 MACHINE_END
274