1/*
2 * linux/arch/arm/mach-omap1/board-palmtt.c
3 *
4 * Modified from board-palmtt2.c
5 *
6 * Modified and amended for Palm Tungsten|T
7 * by Marek Vasut <marek.vasut@gmail.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <linux/delay.h>
15#include <linux/gpio.h>
16#include <linux/kernel.h>
17#include <linux/init.h>
18#include <linux/platform_device.h>
19#include <linux/notifier.h>
20#include <linux/clk.h>
21#include <linux/input.h>
22#include <linux/interrupt.h>
23#include <linux/mtd/mtd.h>
24#include <linux/mtd/partitions.h>
25#include <linux/mtd/physmap.h>
26#include <linux/leds.h>
27#include <linux/omapfb.h>
28#include <linux/spi/spi.h>
29#include <linux/spi/ads7846.h>
30#include <linux/platform_data/omap1_bl.h>
31#include <linux/platform_data/leds-omap.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 <linux/omap-dma.h>
40#include <mach/tc.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 PALMTT_USBDETECT_GPIO	0
49#define PALMTT_CABLE_GPIO	1
50#define PALMTT_LED_GPIO		3
51#define PALMTT_PENIRQ_GPIO	6
52#define PALMTT_MMC_WP_GPIO	8
53#define PALMTT_HDQ_GPIO		11
54
55static const unsigned int palmtt_keymap[] = {
56	KEY(0, 0, KEY_ESC),
57	KEY(1, 0, KEY_SPACE),
58	KEY(2, 0, KEY_LEFTCTRL),
59	KEY(3, 0, KEY_TAB),
60	KEY(4, 0, KEY_ENTER),
61	KEY(0, 1, KEY_LEFT),
62	KEY(1, 1, KEY_DOWN),
63	KEY(2, 1, KEY_UP),
64	KEY(3, 1, KEY_RIGHT),
65	KEY(0, 2, KEY_SLEEP),
66	KEY(4, 2, KEY_Y),
67};
68
69static struct mtd_partition palmtt_partitions[] = {
70	{
71		.name		= "write8k",
72		.offset		= 0,
73		.size		= SZ_8K,
74		.mask_flags	= 0,
75	},
76	{
77		.name		= "PalmOS-BootLoader(ro)",
78		.offset		= SZ_8K,
79		.size		= 7 * SZ_8K,
80		.mask_flags	= MTD_WRITEABLE,
81	},
82	{
83		.name		= "u-boot",
84		.offset		= MTDPART_OFS_APPEND,
85		.size		= 8 * SZ_8K,
86		.mask_flags	= 0,
87	},
88	{
89		.name		= "PalmOS-FS(ro)",
90		.offset		= MTDPART_OFS_APPEND,
91		.size		= 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
92		.mask_flags	= MTD_WRITEABLE,
93	},
94	{
95		.name		= "u-boot(rez)",
96		.offset		= MTDPART_OFS_APPEND,
97		.size		= SZ_128K,
98		.mask_flags	= 0
99	},
100	{
101		.name		= "empty",
102		.offset		= MTDPART_OFS_APPEND,
103		.size		= MTDPART_SIZ_FULL,
104		.mask_flags	= 0
105	}
106};
107
108static struct physmap_flash_data palmtt_flash_data = {
109	.width		= 2,
110	.set_vpp	= omap1_set_vpp,
111	.parts		= palmtt_partitions,
112	.nr_parts	= ARRAY_SIZE(palmtt_partitions),
113};
114
115static struct resource palmtt_flash_resource = {
116	.start		= OMAP_CS0_PHYS,
117	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
118	.flags		= IORESOURCE_MEM,
119};
120
121static struct platform_device palmtt_flash_device = {
122	.name		= "physmap-flash",
123	.id		= 0,
124	.dev		= {
125		.platform_data	= &palmtt_flash_data,
126	},
127	.num_resources	= 1,
128	.resource	= &palmtt_flash_resource,
129};
130
131static struct resource palmtt_kp_resources[] = {
132	[0] = {
133		.start	= INT_KEYBOARD,
134		.end	= INT_KEYBOARD,
135		.flags	= IORESOURCE_IRQ,
136	},
137};
138
139static const struct matrix_keymap_data palmtt_keymap_data = {
140	.keymap		= palmtt_keymap,
141	.keymap_size	= ARRAY_SIZE(palmtt_keymap),
142};
143
144static struct omap_kp_platform_data palmtt_kp_data = {
145	.rows	= 6,
146	.cols	= 3,
147	.keymap_data = &palmtt_keymap_data,
148};
149
150static struct platform_device palmtt_kp_device = {
151	.name		= "omap-keypad",
152	.id		= -1,
153	.dev		= {
154		.platform_data = &palmtt_kp_data,
155	},
156	.num_resources	= ARRAY_SIZE(palmtt_kp_resources),
157	.resource	= palmtt_kp_resources,
158};
159
160static struct platform_device palmtt_lcd_device = {
161	.name		= "lcd_palmtt",
162	.id		= -1,
163};
164
165static struct platform_device palmtt_spi_device = {
166	.name		= "spi_palmtt",
167	.id		= -1,
168};
169
170static struct omap_backlight_config palmtt_backlight_config = {
171	.default_intensity	= 0xa0,
172};
173
174static struct platform_device palmtt_backlight_device = {
175	.name		= "omap-bl",
176	.id		= -1,
177	.dev		= {
178		.platform_data= &palmtt_backlight_config,
179	},
180};
181
182static struct omap_led_config palmtt_led_config[] = {
183	{
184		.cdev	= {
185			.name	= "palmtt:led0",
186		},
187		.gpio	= PALMTT_LED_GPIO,
188	},
189};
190
191static struct omap_led_platform_data palmtt_led_data = {
192	.nr_leds	= ARRAY_SIZE(palmtt_led_config),
193	.leds		= palmtt_led_config,
194};
195
196static struct platform_device palmtt_led_device = {
197	.name	= "omap-led",
198	.id	= -1,
199	.dev	= {
200		.platform_data	= &palmtt_led_data,
201	},
202};
203
204static struct platform_device *palmtt_devices[] __initdata = {
205	&palmtt_flash_device,
206	&palmtt_kp_device,
207	&palmtt_lcd_device,
208	&palmtt_spi_device,
209	&palmtt_backlight_device,
210	&palmtt_led_device,
211};
212
213static int palmtt_get_pendown_state(void)
214{
215	return !gpio_get_value(6);
216}
217
218static const struct ads7846_platform_data palmtt_ts_info = {
219	.model			= 7846,
220	.vref_delay_usecs	= 100,	/* internal, no capacitor */
221	.x_plate_ohms		= 419,
222	.y_plate_ohms		= 486,
223	.get_pendown_state	= palmtt_get_pendown_state,
224};
225
226static struct spi_board_info __initdata palmtt_boardinfo[] = {
227	{
228		/* MicroWire (bus 2) CS0 has an ads7846e */
229		.modalias	= "ads7846",
230		.platform_data	= &palmtt_ts_info,
231		.max_speed_hz	= 120000	/* max sample rate at 3V */
232					* 26	/* command + data + overhead */,
233		.bus_num	= 2,
234		.chip_select	= 0,
235	}
236};
237
238static struct omap_usb_config palmtt_usb_config __initdata = {
239	.register_dev	= 1,
240	.hmc_mode	= 0,
241	.pins[0]	= 2,
242};
243
244static struct omap_lcd_config palmtt_lcd_config __initdata = {
245	.ctrl_name	= "internal",
246};
247
248static void __init omap_mpu_wdt_mode(int mode) {
249	if (mode)
250		omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
251	else {
252		omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
253		omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
254	}
255}
256
257static void __init omap_palmtt_init(void)
258{
259	/* mux pins for uarts */
260	omap_cfg_reg(UART1_TX);
261	omap_cfg_reg(UART1_RTS);
262	omap_cfg_reg(UART2_TX);
263	omap_cfg_reg(UART2_RTS);
264	omap_cfg_reg(UART3_TX);
265	omap_cfg_reg(UART3_RX);
266
267	omap_mpu_wdt_mode(0);
268
269	platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
270
271	palmtt_boardinfo[0].irq = gpio_to_irq(6);
272	spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
273	omap_serial_init();
274	omap1_usb_init(&palmtt_usb_config);
275	omap_register_i2c_bus(1, 100, NULL, 0);
276
277	omapfb_set_lcd_config(&palmtt_lcd_config);
278}
279
280MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
281	.atag_offset	= 0x100,
282	.map_io		= omap15xx_map_io,
283	.init_early     = omap1_init_early,
284	.init_irq	= omap1_init_irq,
285	.handle_irq	= omap1_handle_irq,
286	.init_machine	= omap_palmtt_init,
287	.init_late	= omap1_init_late,
288	.init_time	= omap1_timer_init,
289	.restart	= omap1_restart,
290MACHINE_END
291