1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mach-omap1/board-palmtt.c
4 *
5 * Modified from board-palmtt2.c
6 *
7 * Modified and amended for Palm Tungsten|T
8 * by Marek Vasut <marek.vasut@gmail.com>
9 */
10
11#include <linux/delay.h>
12#include <linux/gpio.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16#include <linux/notifier.h>
17#include <linux/clk.h>
18#include <linux/input.h>
19#include <linux/interrupt.h>
20#include <linux/mtd/mtd.h>
21#include <linux/mtd/partitions.h>
22#include <linux/mtd/physmap.h>
23#include <linux/leds.h>
24#include <linux/omapfb.h>
25#include <linux/spi/spi.h>
26#include <linux/spi/ads7846.h>
27#include <linux/platform_data/omap1_bl.h>
28#include <linux/platform_data/leds-omap.h>
29
30#include <asm/mach-types.h>
31#include <asm/mach/arch.h>
32#include <asm/mach/map.h>
33
34#include "flash.h"
35#include <mach/mux.h>
36#include <linux/omap-dma.h>
37#include <mach/tc.h>
38#include <linux/platform_data/keypad-omap.h>
39
40#include <mach/hardware.h>
41#include <mach/usb.h>
42
43#include "common.h"
44
45#define PALMTT_USBDETECT_GPIO	0
46#define PALMTT_CABLE_GPIO	1
47#define PALMTT_LED_GPIO		3
48#define PALMTT_PENIRQ_GPIO	6
49#define PALMTT_MMC_WP_GPIO	8
50#define PALMTT_HDQ_GPIO		11
51
52static const unsigned int palmtt_keymap[] = {
53	KEY(0, 0, KEY_ESC),
54	KEY(1, 0, KEY_SPACE),
55	KEY(2, 0, KEY_LEFTCTRL),
56	KEY(3, 0, KEY_TAB),
57	KEY(4, 0, KEY_ENTER),
58	KEY(0, 1, KEY_LEFT),
59	KEY(1, 1, KEY_DOWN),
60	KEY(2, 1, KEY_UP),
61	KEY(3, 1, KEY_RIGHT),
62	KEY(0, 2, KEY_SLEEP),
63	KEY(4, 2, KEY_Y),
64};
65
66static struct mtd_partition palmtt_partitions[] = {
67	{
68		.name		= "write8k",
69		.offset		= 0,
70		.size		= SZ_8K,
71		.mask_flags	= 0,
72	},
73	{
74		.name		= "PalmOS-BootLoader(ro)",
75		.offset		= SZ_8K,
76		.size		= 7 * SZ_8K,
77		.mask_flags	= MTD_WRITEABLE,
78	},
79	{
80		.name		= "u-boot",
81		.offset		= MTDPART_OFS_APPEND,
82		.size		= 8 * SZ_8K,
83		.mask_flags	= 0,
84	},
85	{
86		.name		= "PalmOS-FS(ro)",
87		.offset		= MTDPART_OFS_APPEND,
88		.size		= 7 * SZ_1M + 4 * SZ_64K - 16 * SZ_8K,
89		.mask_flags	= MTD_WRITEABLE,
90	},
91	{
92		.name		= "u-boot(rez)",
93		.offset		= MTDPART_OFS_APPEND,
94		.size		= SZ_128K,
95		.mask_flags	= 0
96	},
97	{
98		.name		= "empty",
99		.offset		= MTDPART_OFS_APPEND,
100		.size		= MTDPART_SIZ_FULL,
101		.mask_flags	= 0
102	}
103};
104
105static struct physmap_flash_data palmtt_flash_data = {
106	.width		= 2,
107	.set_vpp	= omap1_set_vpp,
108	.parts		= palmtt_partitions,
109	.nr_parts	= ARRAY_SIZE(palmtt_partitions),
110};
111
112static struct resource palmtt_flash_resource = {
113	.start		= OMAP_CS0_PHYS,
114	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
115	.flags		= IORESOURCE_MEM,
116};
117
118static struct platform_device palmtt_flash_device = {
119	.name		= "physmap-flash",
120	.id		= 0,
121	.dev		= {
122		.platform_data	= &palmtt_flash_data,
123	},
124	.num_resources	= 1,
125	.resource	= &palmtt_flash_resource,
126};
127
128static struct resource palmtt_kp_resources[] = {
129	[0] = {
130		.start	= INT_KEYBOARD,
131		.end	= INT_KEYBOARD,
132		.flags	= IORESOURCE_IRQ,
133	},
134};
135
136static const struct matrix_keymap_data palmtt_keymap_data = {
137	.keymap		= palmtt_keymap,
138	.keymap_size	= ARRAY_SIZE(palmtt_keymap),
139};
140
141static struct omap_kp_platform_data palmtt_kp_data = {
142	.rows	= 6,
143	.cols	= 3,
144	.keymap_data = &palmtt_keymap_data,
145};
146
147static struct platform_device palmtt_kp_device = {
148	.name		= "omap-keypad",
149	.id		= -1,
150	.dev		= {
151		.platform_data = &palmtt_kp_data,
152	},
153	.num_resources	= ARRAY_SIZE(palmtt_kp_resources),
154	.resource	= palmtt_kp_resources,
155};
156
157static struct platform_device palmtt_lcd_device = {
158	.name		= "lcd_palmtt",
159	.id		= -1,
160};
161
162static struct platform_device palmtt_spi_device = {
163	.name		= "spi_palmtt",
164	.id		= -1,
165};
166
167static struct omap_backlight_config palmtt_backlight_config = {
168	.default_intensity	= 0xa0,
169};
170
171static struct platform_device palmtt_backlight_device = {
172	.name		= "omap-bl",
173	.id		= -1,
174	.dev		= {
175		.platform_data= &palmtt_backlight_config,
176	},
177};
178
179static struct omap_led_config palmtt_led_config[] = {
180	{
181		.cdev	= {
182			.name	= "palmtt:led0",
183		},
184		.gpio	= PALMTT_LED_GPIO,
185	},
186};
187
188static struct omap_led_platform_data palmtt_led_data = {
189	.nr_leds	= ARRAY_SIZE(palmtt_led_config),
190	.leds		= palmtt_led_config,
191};
192
193static struct platform_device palmtt_led_device = {
194	.name	= "omap-led",
195	.id	= -1,
196	.dev	= {
197		.platform_data	= &palmtt_led_data,
198	},
199};
200
201static struct platform_device *palmtt_devices[] __initdata = {
202	&palmtt_flash_device,
203	&palmtt_kp_device,
204	&palmtt_lcd_device,
205	&palmtt_spi_device,
206	&palmtt_backlight_device,
207	&palmtt_led_device,
208};
209
210static int palmtt_get_pendown_state(void)
211{
212	return !gpio_get_value(6);
213}
214
215static const struct ads7846_platform_data palmtt_ts_info = {
216	.model			= 7846,
217	.vref_delay_usecs	= 100,	/* internal, no capacitor */
218	.x_plate_ohms		= 419,
219	.y_plate_ohms		= 486,
220	.get_pendown_state	= palmtt_get_pendown_state,
221};
222
223static struct spi_board_info __initdata palmtt_boardinfo[] = {
224	{
225		/* MicroWire (bus 2) CS0 has an ads7846e */
226		.modalias	= "ads7846",
227		.platform_data	= &palmtt_ts_info,
228		.max_speed_hz	= 120000	/* max sample rate at 3V */
229					* 26	/* command + data + overhead */,
230		.bus_num	= 2,
231		.chip_select	= 0,
232	}
233};
234
235static struct omap_usb_config palmtt_usb_config __initdata = {
236	.register_dev	= 1,
237	.hmc_mode	= 0,
238	.pins[0]	= 2,
239};
240
241static const struct omap_lcd_config palmtt_lcd_config __initconst = {
242	.ctrl_name	= "internal",
243};
244
245static void __init omap_mpu_wdt_mode(int mode) {
246	if (mode)
247		omap_writew(0x8000, OMAP_WDT_TIMER_MODE);
248	else {
249		omap_writew(0x00f5, OMAP_WDT_TIMER_MODE);
250		omap_writew(0x00a0, OMAP_WDT_TIMER_MODE);
251	}
252}
253
254static void __init omap_palmtt_init(void)
255{
256	/* mux pins for uarts */
257	omap_cfg_reg(UART1_TX);
258	omap_cfg_reg(UART1_RTS);
259	omap_cfg_reg(UART2_TX);
260	omap_cfg_reg(UART2_RTS);
261	omap_cfg_reg(UART3_TX);
262	omap_cfg_reg(UART3_RX);
263
264	omap_mpu_wdt_mode(0);
265
266	platform_add_devices(palmtt_devices, ARRAY_SIZE(palmtt_devices));
267
268	palmtt_boardinfo[0].irq = gpio_to_irq(6);
269	spi_register_board_info(palmtt_boardinfo,ARRAY_SIZE(palmtt_boardinfo));
270	omap_serial_init();
271	omap1_usb_init(&palmtt_usb_config);
272	omap_register_i2c_bus(1, 100, NULL, 0);
273
274	omapfb_set_lcd_config(&palmtt_lcd_config);
275}
276
277MACHINE_START(OMAP_PALMTT, "OMAP1510 based Palm Tungsten|T")
278	.atag_offset	= 0x100,
279	.map_io		= omap15xx_map_io,
280	.init_early     = omap1_init_early,
281	.init_irq	= omap1_init_irq,
282	.handle_irq	= omap1_handle_irq,
283	.init_machine	= omap_palmtt_init,
284	.init_late	= omap1_init_late,
285	.init_time	= omap1_timer_init,
286	.restart	= omap1_restart,
287MACHINE_END
288