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 "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 "mmc.h"
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 platform_device *palmte_devices[] __initdata = {
170 	&palmte_rom_device,
171 	&palmte_kp_device,
172 	&palmte_lcd_device,
173 	&palmte_backlight_device,
174 };
175 
176 static struct omap_usb_config palmte_usb_config __initdata = {
177 	.register_dev	= 1,	/* Mini-B only receptacle */
178 	.hmc_mode	= 0,
179 	.pins[0]	= 2,
180 };
181 
182 static const struct omap_lcd_config palmte_lcd_config __initconst = {
183 	.ctrl_name	= "internal",
184 };
185 
186 static struct spi_board_info palmte_spi_info[] __initdata = {
187 	{
188 		.modalias	= "tsc2102",
189 		.bus_num	= 2,	/* uWire (officially) */
190 		.chip_select	= 0,	/* As opposed to 3 */
191 		.max_speed_hz	= 8000000,
192 	},
193 };
194 
195 static void __init palmte_misc_gpio_setup(void)
196 {
197 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
198 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
199 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
200 		return;
201 	}
202 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
203 
204 	/* Set USB-or-DC-IN pin as input (unused) */
205 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
206 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
207 		return;
208 	}
209 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
210 }
211 
212 #if IS_ENABLED(CONFIG_MMC_OMAP)
213 
214 static struct omap_mmc_platform_data _palmte_mmc_config = {
215 	.nr_slots			= 1,
216 	.slots[0]			= {
217 		.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
218 		.name			= "mmcblk",
219 	},
220 };
221 
222 static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
223 	[0] = &_palmte_mmc_config,
224 };
225 
226 static void palmte_mmc_init(void)
227 {
228 	omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
229 }
230 
231 #else /* CONFIG_MMC_OMAP */
232 
233 static void palmte_mmc_init(void)
234 {
235 }
236 
237 #endif /* CONFIG_MMC_OMAP */
238 
239 static void __init omap_palmte_init(void)
240 {
241 	/* mux pins for uarts */
242 	omap_cfg_reg(UART1_TX);
243 	omap_cfg_reg(UART1_RTS);
244 	omap_cfg_reg(UART2_TX);
245 	omap_cfg_reg(UART2_RTS);
246 	omap_cfg_reg(UART3_TX);
247 	omap_cfg_reg(UART3_RX);
248 
249 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
250 
251 	palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
252 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
253 	palmte_misc_gpio_setup();
254 	omap_serial_init();
255 	omap1_usb_init(&palmte_usb_config);
256 	omap_register_i2c_bus(1, 100, NULL, 0);
257 
258 	omapfb_set_lcd_config(&palmte_lcd_config);
259 	palmte_mmc_init();
260 }
261 
262 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
263 	.atag_offset	= 0x100,
264 	.map_io		= omap15xx_map_io,
265 	.init_early     = omap1_init_early,
266 	.init_irq	= omap1_init_irq,
267 	.handle_irq	= omap1_handle_irq,
268 	.init_machine	= omap_palmte_init,
269 	.init_late	= omap1_init_late,
270 	.init_time	= omap1_timer_init,
271 	.restart	= omap1_restart,
272 MACHINE_END
273