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Linux/arch/arm/mach-omap1/board-palmte.c

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  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 

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