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ec70e8af MV |
1 | /* |
2 | * linux/arch/arm/mach-omap1/board-palmz71.c | |
3 | * | |
4 | * Modified from board-generic.c | |
5 | * | |
6 | * Support for the Palm Zire71 PDA. | |
7 | * | |
8 | * Original version : Laurent Gonzalez | |
9 | * | |
10 | * Modified for zire71 : Marek Vasut | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | */ | |
16 | ||
17 | #include <linux/delay.h> | |
2f8163ba | 18 | #include <linux/gpio.h> |
ec70e8af MV |
19 | #include <linux/kernel.h> |
20 | #include <linux/init.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/notifier.h> | |
23 | #include <linux/clk.h> | |
24 | #include <linux/irq.h> | |
25 | #include <linux/input.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/mtd/mtd.h> | |
28 | #include <linux/mtd/partitions.h> | |
561b036a | 29 | #include <linux/mtd/physmap.h> |
ddba6c7f | 30 | #include <linux/omapfb.h> |
2e3ee9f4 TL |
31 | #include <linux/spi/spi.h> |
32 | #include <linux/spi/ads7846.h> | |
cc012729 | 33 | #include <linux/platform_data/omap1_bl.h> |
ec70e8af | 34 | |
ec70e8af MV |
35 | #include <asm/mach-types.h> |
36 | #include <asm/mach/arch.h> | |
37 | #include <asm/mach/map.h> | |
ec70e8af | 38 | |
100f9638 | 39 | #include "flash.h" |
70c494c3 | 40 | #include <mach/mux.h> |
45c3eb7d | 41 | #include <linux/omap-dma.h> |
54b693d4 | 42 | #include <mach/tc.h> |
2203747c | 43 | #include <linux/platform_data/keypad-omap.h> |
ec70e8af | 44 | |
2e3ee9f4 | 45 | #include <mach/hardware.h> |
b924b204 | 46 | #include <mach/usb.h> |
2e3ee9f4 TL |
47 | |
48 | #include "common.h" | |
ec70e8af | 49 | |
b2830810 TL |
50 | #define PALMZ71_USBDETECT_GPIO 0 |
51 | #define PALMZ71_PENIRQ_GPIO 6 | |
52 | #define PALMZ71_MMC_WP_GPIO 8 | |
53 | #define PALMZ71_HDQ_GPIO 11 | |
54 | ||
55 | #define PALMZ71_HOTSYNC_GPIO OMAP_MPUIO(1) | |
56 | #define PALMZ71_CABLE_GPIO OMAP_MPUIO(2) | |
57 | #define PALMZ71_SLIDER_GPIO OMAP_MPUIO(3) | |
58 | #define PALMZ71_MMC_IN_GPIO OMAP_MPUIO(4) | |
59 | ||
da1f026b | 60 | static const unsigned int palmz71_keymap[] = { |
ec70e8af | 61 | KEY(0, 0, KEY_F1), |
da1f026b JK |
62 | KEY(1, 0, KEY_F2), |
63 | KEY(2, 0, KEY_F3), | |
64 | KEY(3, 0, KEY_F4), | |
65 | KEY(4, 0, KEY_POWER), | |
66 | KEY(0, 1, KEY_LEFT), | |
ec70e8af | 67 | KEY(1, 1, KEY_DOWN), |
da1f026b JK |
68 | KEY(2, 1, KEY_UP), |
69 | KEY(3, 1, KEY_RIGHT), | |
70 | KEY(4, 1, KEY_ENTER), | |
71 | KEY(0, 2, KEY_CAMERA), | |
72 | }; | |
73 | ||
74 | static const struct matrix_keymap_data palmz71_keymap_data = { | |
75 | .keymap = palmz71_keymap, | |
76 | .keymap_size = ARRAY_SIZE(palmz71_keymap), | |
ec70e8af MV |
77 | }; |
78 | ||
79 | static struct omap_kp_platform_data palmz71_kp_data = { | |
80 | .rows = 8, | |
81 | .cols = 8, | |
da1f026b JK |
82 | .keymap_data = &palmz71_keymap_data, |
83 | .rep = true, | |
ec70e8af MV |
84 | .delay = 80, |
85 | }; | |
86 | ||
87 | static struct resource palmz71_kp_resources[] = { | |
88 | [0] = { | |
89 | .start = INT_KEYBOARD, | |
90 | .end = INT_KEYBOARD, | |
91 | .flags = IORESOURCE_IRQ, | |
92 | }, | |
93 | }; | |
94 | ||
95 | static struct platform_device palmz71_kp_device = { | |
96 | .name = "omap-keypad", | |
97 | .id = -1, | |
98 | .dev = { | |
99 | .platform_data = &palmz71_kp_data, | |
100 | }, | |
101 | .num_resources = ARRAY_SIZE(palmz71_kp_resources), | |
102 | .resource = palmz71_kp_resources, | |
103 | }; | |
104 | ||
105 | static struct mtd_partition palmz71_rom_partitions[] = { | |
106 | /* PalmOS "Small ROM", contains the bootloader and the debugger */ | |
107 | { | |
108 | .name = "smallrom", | |
109 | .offset = 0, | |
110 | .size = 0xa000, | |
111 | .mask_flags = MTD_WRITEABLE, | |
112 | }, | |
113 | /* PalmOS "Big ROM", a filesystem with all the OS code and data */ | |
114 | { | |
115 | .name = "bigrom", | |
116 | .offset = SZ_128K, | |
117 | /* | |
118 | * 0x5f0000 bytes big in the multi-language ("EFIGS") version, | |
119 | * 0x7b0000 bytes in the English-only ("enUS") version. | |
120 | */ | |
121 | .size = 0x7b0000, | |
122 | .mask_flags = MTD_WRITEABLE, | |
123 | }, | |
124 | }; | |
125 | ||
561b036a | 126 | static struct physmap_flash_data palmz71_rom_data = { |
ec70e8af | 127 | .width = 2, |
561b036a | 128 | .set_vpp = omap1_set_vpp, |
ec70e8af MV |
129 | .parts = palmz71_rom_partitions, |
130 | .nr_parts = ARRAY_SIZE(palmz71_rom_partitions), | |
131 | }; | |
132 | ||
133 | static struct resource palmz71_rom_resource = { | |
134 | .start = OMAP_CS0_PHYS, | |
135 | .end = OMAP_CS0_PHYS + SZ_8M - 1, | |
136 | .flags = IORESOURCE_MEM, | |
137 | }; | |
138 | ||
139 | static struct platform_device palmz71_rom_device = { | |
561b036a | 140 | .name = "physmap-flash", |
ec70e8af MV |
141 | .id = -1, |
142 | .dev = { | |
143 | .platform_data = &palmz71_rom_data, | |
144 | }, | |
145 | .num_resources = 1, | |
146 | .resource = &palmz71_rom_resource, | |
147 | }; | |
148 | ||
149 | static struct platform_device palmz71_lcd_device = { | |
150 | .name = "lcd_palmz71", | |
151 | .id = -1, | |
152 | }; | |
153 | ||
ec70e8af MV |
154 | static struct platform_device palmz71_spi_device = { |
155 | .name = "spi_palmz71", | |
156 | .id = -1, | |
157 | }; | |
158 | ||
ec70e8af MV |
159 | static struct omap_backlight_config palmz71_backlight_config = { |
160 | .default_intensity = 0xa0, | |
161 | }; | |
162 | ||
163 | static struct platform_device palmz71_backlight_device = { | |
164 | .name = "omap-bl", | |
165 | .id = -1, | |
166 | .dev = { | |
167 | .platform_data = &palmz71_backlight_config, | |
168 | }, | |
169 | }; | |
170 | ||
171 | static struct platform_device *devices[] __initdata = { | |
172 | &palmz71_rom_device, | |
173 | &palmz71_kp_device, | |
ec70e8af | 174 | &palmz71_lcd_device, |
ec70e8af MV |
175 | &palmz71_spi_device, |
176 | &palmz71_backlight_device, | |
177 | }; | |
178 | ||
179 | static int | |
180 | palmz71_get_pendown_state(void) | |
181 | { | |
0b84b5ca | 182 | return !gpio_get_value(PALMZ71_PENIRQ_GPIO); |
ec70e8af MV |
183 | } |
184 | ||
185 | static const struct ads7846_platform_data palmz71_ts_info = { | |
186 | .model = 7846, | |
187 | .vref_delay_usecs = 100, /* internal, no capacitor */ | |
188 | .x_plate_ohms = 419, | |
189 | .y_plate_ohms = 486, | |
190 | .get_pendown_state = palmz71_get_pendown_state, | |
191 | }; | |
192 | ||
193 | static struct spi_board_info __initdata palmz71_boardinfo[] = { { | |
194 | /* MicroWire (bus 2) CS0 has an ads7846e */ | |
195 | .modalias = "ads7846", | |
196 | .platform_data = &palmz71_ts_info, | |
ec70e8af MV |
197 | .max_speed_hz = 120000 /* max sample rate at 3V */ |
198 | * 26 /* command + data + overhead */, | |
199 | .bus_num = 2, | |
200 | .chip_select = 0, | |
201 | } }; | |
202 | ||
203 | static struct omap_usb_config palmz71_usb_config __initdata = { | |
204 | .register_dev = 1, /* Mini-B only receptacle */ | |
205 | .hmc_mode = 0, | |
206 | .pins[0] = 2, | |
207 | }; | |
208 | ||
ec70e8af MV |
209 | static struct omap_lcd_config palmz71_lcd_config __initdata = { |
210 | .ctrl_name = "internal", | |
211 | }; | |
212 | ||
ec70e8af MV |
213 | static irqreturn_t |
214 | palmz71_powercable(int irq, void *dev_id) | |
215 | { | |
0b84b5ca | 216 | if (gpio_get_value(PALMZ71_USBDETECT_GPIO)) { |
ec70e8af | 217 | printk(KERN_INFO "PM: Power cable connected\n"); |
6845664a TG |
218 | irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO), |
219 | IRQ_TYPE_EDGE_FALLING); | |
ec70e8af MV |
220 | } else { |
221 | printk(KERN_INFO "PM: Power cable disconnected\n"); | |
6845664a TG |
222 | irq_set_irq_type(gpio_to_irq(PALMZ71_USBDETECT_GPIO), |
223 | IRQ_TYPE_EDGE_RISING); | |
ec70e8af MV |
224 | } |
225 | return IRQ_HANDLED; | |
226 | } | |
227 | ||
228 | static void __init | |
229 | omap_mpu_wdt_mode(int mode) | |
230 | { | |
231 | if (mode) | |
232 | omap_writew(0x8000, OMAP_WDT_TIMER_MODE); | |
233 | else { | |
234 | omap_writew(0x00f5, OMAP_WDT_TIMER_MODE); | |
235 | omap_writew(0x00a0, OMAP_WDT_TIMER_MODE); | |
236 | } | |
237 | } | |
238 | ||
239 | static void __init | |
240 | palmz71_gpio_setup(int early) | |
241 | { | |
242 | if (early) { | |
243 | /* Only set GPIO1 so we have a working serial */ | |
e918edf7 | 244 | gpio_direction_output(1, 1); |
ec70e8af MV |
245 | } else { |
246 | /* Set MMC/SD host WP pin as input */ | |
f2d18fea | 247 | if (gpio_request(PALMZ71_MMC_WP_GPIO, "MMC WP") < 0) { |
ec70e8af MV |
248 | printk(KERN_ERR "Could not reserve WP GPIO!\n"); |
249 | return; | |
250 | } | |
40e3925b | 251 | gpio_direction_input(PALMZ71_MMC_WP_GPIO); |
ec70e8af MV |
252 | |
253 | /* Monitor the Power-cable-connected signal */ | |
f2d18fea | 254 | if (gpio_request(PALMZ71_USBDETECT_GPIO, "USB detect") < 0) { |
ec70e8af MV |
255 | printk(KERN_ERR |
256 | "Could not reserve cable signal GPIO!\n"); | |
257 | return; | |
258 | } | |
40e3925b | 259 | gpio_direction_input(PALMZ71_USBDETECT_GPIO); |
15f74b03 | 260 | if (request_irq(gpio_to_irq(PALMZ71_USBDETECT_GPIO), |
9863fa6c | 261 | palmz71_powercable, 0, "palmz71-cable", NULL)) |
ec70e8af MV |
262 | printk(KERN_ERR |
263 | "IRQ request for power cable failed!\n"); | |
a7022d60 | 264 | palmz71_powercable(gpio_to_irq(PALMZ71_USBDETECT_GPIO), NULL); |
ec70e8af MV |
265 | } |
266 | } | |
267 | ||
268 | static void __init | |
269 | omap_palmz71_init(void) | |
270 | { | |
c33da3a8 JK |
271 | /* mux pins for uarts */ |
272 | omap_cfg_reg(UART1_TX); | |
273 | omap_cfg_reg(UART1_RTS); | |
274 | omap_cfg_reg(UART2_TX); | |
275 | omap_cfg_reg(UART2_RTS); | |
276 | omap_cfg_reg(UART3_TX); | |
277 | omap_cfg_reg(UART3_RX); | |
278 | ||
ec70e8af MV |
279 | palmz71_gpio_setup(1); |
280 | omap_mpu_wdt_mode(0); | |
281 | ||
ec70e8af MV |
282 | platform_add_devices(devices, ARRAY_SIZE(devices)); |
283 | ||
46a0a540 | 284 | palmz71_boardinfo[0].irq = gpio_to_irq(PALMZ71_PENIRQ_GPIO); |
ec70e8af MV |
285 | spi_register_board_info(palmz71_boardinfo, |
286 | ARRAY_SIZE(palmz71_boardinfo)); | |
dd0cdd88 | 287 | omap1_usb_init(&palmz71_usb_config); |
ec70e8af | 288 | omap_serial_init(); |
1ed16a86 | 289 | omap_register_i2c_bus(1, 100, NULL, 0); |
ec70e8af | 290 | palmz71_gpio_setup(0); |
ddba6c7f TV |
291 | |
292 | omapfb_set_lcd_config(&palmz71_lcd_config); | |
ec70e8af MV |
293 | } |
294 | ||
ec70e8af | 295 | MACHINE_START(OMAP_PALMZ71, "OMAP310 based Palm Zire71") |
246e389d | 296 | .atag_offset = 0x100, |
7b88e62f TL |
297 | .map_io = omap15xx_map_io, |
298 | .init_early = omap1_init_early, | |
7b88e62f | 299 | .init_irq = omap1_init_irq, |
b694331c | 300 | .handle_irq = omap1_handle_irq, |
71ee7dad | 301 | .init_machine = omap_palmz71_init, |
82c3bd03 | 302 | .init_late = omap1_init_late, |
6bb27d73 | 303 | .init_time = omap1_timer_init, |
baa95883 | 304 | .restart = omap1_restart, |
ec70e8af | 305 | MACHINE_END |