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 
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 
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35 
36 #include <mach/gpio.h>
37 #include <plat/flash.h>
38 #include <plat/mux.h>
39 #include <plat/usb.h>
40 #include <plat/tc.h>
41 #include <plat/dma.h>
42 #include <plat/board.h>
43 #include <plat/irda.h>
44 #include <plat/keypad.h>
45 #include <plat/common.h>
46 
47 #define PALMTE_USBDETECT_GPIO	0
48 #define PALMTE_USB_OR_DC_GPIO	1
49 #define PALMTE_TSC_GPIO		4
50 #define PALMTE_PINTDAV_GPIO	6
51 #define PALMTE_MMC_WP_GPIO	8
52 #define PALMTE_MMC_POWER_GPIO	9
53 #define PALMTE_HDQ_GPIO		11
54 #define PALMTE_HEADPHONES_GPIO	14
55 #define PALMTE_SPEAKER_GPIO	15
56 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
57 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
58 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
59 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
60 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)
61 
62 static void __init omap_palmte_init_irq(void)
63 {
64 	omap1_init_common_hw();
65 	omap1_init_irq();
66 }
67 
68 static const unsigned int palmte_keymap[] = {
69 	KEY(0, 0, KEY_F1),		/* Calendar */
70 	KEY(1, 0, KEY_F2),		/* Contacts */
71 	KEY(2, 0, KEY_F3),		/* Tasks List */
72 	KEY(3, 0, KEY_F4),		/* Note Pad */
73 	KEY(4, 0, KEY_POWER),
74 	KEY(0, 1, KEY_LEFT),
75 	KEY(1, 1, KEY_DOWN),
76 	KEY(2, 1, KEY_UP),
77 	KEY(3, 1, KEY_RIGHT),
78 	KEY(4, 1, KEY_ENTER),
79 };
80 
81 static const struct matrix_keymap_data palmte_keymap_data = {
82 	.keymap		= palmte_keymap,
83 	.keymap_size	= ARRAY_SIZE(palmte_keymap),
84 };
85 
86 static struct omap_kp_platform_data palmte_kp_data = {
87 	.rows	= 8,
88 	.cols	= 8,
89 	.keymap_data = &palmte_keymap_data,
90 	.rep	= true,
91 	.delay	= 12,
92 };
93 
94 static struct resource palmte_kp_resources[] = {
95 	[0]	= {
96 		.start	= INT_KEYBOARD,
97 		.end	= INT_KEYBOARD,
98 		.flags	= IORESOURCE_IRQ,
99 	},
100 };
101 
102 static struct platform_device palmte_kp_device = {
103 	.name		= "omap-keypad",
104 	.id		= -1,
105 	.dev		= {
106 		.platform_data	= &palmte_kp_data,
107 	},
108 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
109 	.resource	= palmte_kp_resources,
110 };
111 
112 static struct mtd_partition palmte_rom_partitions[] = {
113 	/* PalmOS "Small ROM", contains the bootloader and the debugger */
114 	{
115 		.name		= "smallrom",
116 		.offset		= 0,
117 		.size		= 0xa000,
118 		.mask_flags	= MTD_WRITEABLE,
119 	},
120 	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
121 	{
122 		.name		= "bigrom",
123 		.offset		= SZ_128K,
124 		/*
125 		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
126 		 * 0x7b0000 bytes in the English-only ("enUS") version.
127 		 */
128 		.size		= 0x7b0000,
129 		.mask_flags	= MTD_WRITEABLE,
130 	},
131 };
132 
133 static struct physmap_flash_data palmte_rom_data = {
134 	.width		= 2,
135 	.set_vpp	= omap1_set_vpp,
136 	.parts		= palmte_rom_partitions,
137 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
138 };
139 
140 static struct resource palmte_rom_resource = {
141 	.start		= OMAP_CS0_PHYS,
142 	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
143 	.flags		= IORESOURCE_MEM,
144 };
145 
146 static struct platform_device palmte_rom_device = {
147 	.name		= "physmap-flash",
148 	.id		= -1,
149 	.dev		= {
150 		.platform_data	= &palmte_rom_data,
151 	},
152 	.num_resources	= 1,
153 	.resource	= &palmte_rom_resource,
154 };
155 
156 static struct platform_device palmte_lcd_device = {
157 	.name		= "lcd_palmte",
158 	.id		= -1,
159 };
160 
161 static struct omap_backlight_config palmte_backlight_config = {
162 	.default_intensity	= 0xa0,
163 };
164 
165 static struct platform_device palmte_backlight_device = {
166 	.name		= "omap-bl",
167 	.id		= -1,
168 	.dev		= {
169 		.platform_data	= &palmte_backlight_config,
170 	},
171 };
172 
173 static struct omap_irda_config palmte_irda_config = {
174 	.transceiver_cap	= IR_SIRMODE,
175 	.rx_channel		= OMAP_DMA_UART3_RX,
176 	.tx_channel		= OMAP_DMA_UART3_TX,
177 	.dest_start		= UART3_THR,
178 	.src_start		= UART3_RHR,
179 	.tx_trigger		= 0,
180 	.rx_trigger		= 0,
181 };
182 
183 static struct resource palmte_irda_resources[] = {
184 	[0]	= {
185 		.start	= INT_UART3,
186 		.end	= INT_UART3,
187 		.flags	= IORESOURCE_IRQ,
188 	},
189 };
190 
191 static struct platform_device palmte_irda_device = {
192 	.name		= "omapirda",
193 	.id		= -1,
194 	.dev		= {
195 		.platform_data	= &palmte_irda_config,
196 	},
197 	.num_resources	= ARRAY_SIZE(palmte_irda_resources),
198 	.resource	= palmte_irda_resources,
199 };
200 
201 static struct platform_device *palmte_devices[] __initdata = {
202 	&palmte_rom_device,
203 	&palmte_kp_device,
204 	&palmte_lcd_device,
205 	&palmte_backlight_device,
206 	&palmte_irda_device,
207 };
208 
209 static struct omap_usb_config palmte_usb_config __initdata = {
210 	.register_dev	= 1,	/* Mini-B only receptacle */
211 	.hmc_mode	= 0,
212 	.pins[0]	= 2,
213 };
214 
215 static struct omap_lcd_config palmte_lcd_config __initdata = {
216 	.ctrl_name	= "internal",
217 };
218 
219 static struct omap_board_config_kernel palmte_config[] __initdata = {
220 	{ OMAP_TAG_LCD,		&palmte_lcd_config },
221 };
222 
223 static struct spi_board_info palmte_spi_info[] __initdata = {
224 	{
225 		.modalias	= "tsc2102",
226 		.bus_num	= 2,	/* uWire (officially) */
227 		.chip_select	= 0,	/* As opposed to 3 */
228 		.irq		= OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
229 		.max_speed_hz	= 8000000,
230 	},
231 };
232 
233 static void __init palmte_misc_gpio_setup(void)
234 {
235 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
236 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
237 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
238 		return;
239 	}
240 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
241 
242 	/* Set USB-or-DC-IN pin as input (unused) */
243 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
244 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
245 		return;
246 	}
247 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
248 }
249 
250 static void __init omap_palmte_init(void)
251 {
252 	/* mux pins for uarts */
253 	omap_cfg_reg(UART1_TX);
254 	omap_cfg_reg(UART1_RTS);
255 	omap_cfg_reg(UART2_TX);
256 	omap_cfg_reg(UART2_RTS);
257 	omap_cfg_reg(UART3_TX);
258 	omap_cfg_reg(UART3_RX);
259 
260 	omap_board_config = palmte_config;
261 	omap_board_config_size = ARRAY_SIZE(palmte_config);
262 
263 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
264 
265 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
266 	palmte_misc_gpio_setup();
267 	omap_serial_init();
268 	omap1_usb_init(&palmte_usb_config);
269 	omap_register_i2c_bus(1, 100, NULL, 0);
270 }
271 
272 static void __init omap_palmte_map_io(void)
273 {
274 	omap1_map_common_io();
275 }
276 
277 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
278 	.boot_params	= 0x10000100,
279 	.map_io		= omap_palmte_map_io,
280 	.reserve	= omap_reserve,
281 	.init_irq	= omap_palmte_init_irq,
282 	.init_machine	= omap_palmte_init,
283 	.timer		= &omap1_timer,
284 MACHINE_END
285