1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mach-omap1/board-palmte.c
4 *
5 * Modified from board-generic.c
6 *
7 * Support for the Palm Tungsten E PDA.
8 *
9 * Original version : Laurent Gonzalez
10 *
11 * Maintainers : http://palmtelinux.sf.net
12 *                palmtelinux-developpers@lists.sf.net
13 *
14 * Copyright (c) 2006 Andrzej Zaborowski  <balrog@zabor.org>
15 */
16#include <linux/gpio/machine.h>
17#include <linux/gpio/consumer.h>
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/input.h>
21#include <linux/platform_device.h>
22#include <linux/mtd/mtd.h>
23#include <linux/mtd/partitions.h>
24#include <linux/mtd/physmap.h>
25#include <linux/spi/spi.h>
26#include <linux/interrupt.h>
27#include <linux/apm-emulation.h>
28#include <linux/omapfb.h>
29#include <linux/omap-dma.h>
30#include <linux/platform_data/keypad-omap.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 "tc.h"
38#include "flash.h"
39#include "mux.h"
40#include "hardware.h"
41#include "usb.h"
42#include "mmc.h"
43#include "common.h"
44
45#define PALMTE_USBDETECT_GPIO	0
46#define PALMTE_USB_OR_DC_GPIO	1
47#define PALMTE_TSC_GPIO		4
48#define PALMTE_PINTDAV_GPIO	6
49#define PALMTE_MMC_WP_GPIO	8
50#define PALMTE_MMC_POWER_GPIO	9
51#define PALMTE_HDQ_GPIO		11
52#define PALMTE_HEADPHONES_GPIO	14
53#define PALMTE_SPEAKER_GPIO	15
54
55static const unsigned int palmte_keymap[] = {
56	KEY(0, 0, KEY_F1),		/* Calendar */
57	KEY(1, 0, KEY_F2),		/* Contacts */
58	KEY(2, 0, KEY_F3),		/* Tasks List */
59	KEY(3, 0, KEY_F4),		/* Note Pad */
60	KEY(4, 0, KEY_POWER),
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(4, 1, KEY_ENTER),
66};
67
68static const struct matrix_keymap_data palmte_keymap_data = {
69	.keymap		= palmte_keymap,
70	.keymap_size	= ARRAY_SIZE(palmte_keymap),
71};
72
73static struct omap_kp_platform_data palmte_kp_data = {
74	.rows	= 8,
75	.cols	= 8,
76	.keymap_data = &palmte_keymap_data,
77	.rep	= true,
78	.delay	= 12,
79};
80
81static struct resource palmte_kp_resources[] = {
82	[0]	= {
83		.start	= INT_KEYBOARD,
84		.end	= INT_KEYBOARD,
85		.flags	= IORESOURCE_IRQ,
86	},
87};
88
89static struct platform_device palmte_kp_device = {
90	.name		= "omap-keypad",
91	.id		= -1,
92	.dev		= {
93		.platform_data	= &palmte_kp_data,
94	},
95	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
96	.resource	= palmte_kp_resources,
97};
98
99static struct mtd_partition palmte_rom_partitions[] = {
100	/* PalmOS "Small ROM", contains the bootloader and the debugger */
101	{
102		.name		= "smallrom",
103		.offset		= 0,
104		.size		= 0xa000,
105		.mask_flags	= MTD_WRITEABLE,
106	},
107	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
108	{
109		.name		= "bigrom",
110		.offset		= SZ_128K,
111		/*
112		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
113		 * 0x7b0000 bytes in the English-only ("enUS") version.
114		 */
115		.size		= 0x7b0000,
116		.mask_flags	= MTD_WRITEABLE,
117	},
118};
119
120static struct physmap_flash_data palmte_rom_data = {
121	.width		= 2,
122	.set_vpp	= omap1_set_vpp,
123	.parts		= palmte_rom_partitions,
124	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
125};
126
127static struct resource palmte_rom_resource = {
128	.start		= OMAP_CS0_PHYS,
129	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
130	.flags		= IORESOURCE_MEM,
131};
132
133static struct platform_device palmte_rom_device = {
134	.name		= "physmap-flash",
135	.id		= -1,
136	.dev		= {
137		.platform_data	= &palmte_rom_data,
138	},
139	.num_resources	= 1,
140	.resource	= &palmte_rom_resource,
141};
142
143static struct platform_device palmte_lcd_device = {
144	.name		= "lcd_palmte",
145	.id		= -1,
146};
147
148static struct omap_backlight_config palmte_backlight_config = {
149	.default_intensity	= 0xa0,
150};
151
152static struct platform_device palmte_backlight_device = {
153	.name		= "omap-bl",
154	.id		= -1,
155	.dev		= {
156		.platform_data	= &palmte_backlight_config,
157	},
158};
159
160static struct platform_device *palmte_devices[] __initdata = {
161	&palmte_rom_device,
162	&palmte_kp_device,
163	&palmte_lcd_device,
164	&palmte_backlight_device,
165};
166
167static struct omap_usb_config palmte_usb_config __initdata = {
168	.register_dev	= 1,	/* Mini-B only receptacle */
169	.hmc_mode	= 0,
170	.pins[0]	= 2,
171};
172
173static const struct omap_lcd_config palmte_lcd_config __initconst = {
174	.ctrl_name	= "internal",
175};
176
177static struct spi_board_info palmte_spi_info[] __initdata = {
178	{
179		.modalias	= "tsc2102",
180		.bus_num	= 2,	/* uWire (officially) */
181		.chip_select	= 0,	/* As opposed to 3 */
182		.max_speed_hz	= 8000000,
183	},
184};
185
186#if IS_ENABLED(CONFIG_MMC_OMAP)
187
188static struct omap_mmc_platform_data _palmte_mmc_config = {
189	.nr_slots			= 1,
190	.slots[0]			= {
191		.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
192		.name			= "mmcblk",
193	},
194};
195
196static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
197	[0] = &_palmte_mmc_config,
198};
199
200static void palmte_mmc_init(void)
201{
202	omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
203}
204
205#else /* CONFIG_MMC_OMAP */
206
207static void palmte_mmc_init(void)
208{
209}
210
211#endif /* CONFIG_MMC_OMAP */
212
213static struct gpiod_lookup_table palmte_irq_gpio_table = {
214	.dev_id = NULL,
215	.table = {
216		/* GPIO used for TSC2102 PINTDAV IRQ */
217		GPIO_LOOKUP("gpio-0-15", PALMTE_PINTDAV_GPIO, "tsc2102_irq",
218			    GPIO_ACTIVE_HIGH),
219		/* GPIO used for USB or DC input detection */
220		GPIO_LOOKUP("gpio-0-15", PALMTE_USB_OR_DC_GPIO, "usb_dc_irq",
221			    GPIO_ACTIVE_HIGH),
222		{ }
223	},
224};
225
226static void __init omap_palmte_init(void)
227{
228	struct gpio_desc *d;
229
230	/* mux pins for uarts */
231	omap_cfg_reg(UART1_TX);
232	omap_cfg_reg(UART1_RTS);
233	omap_cfg_reg(UART2_TX);
234	omap_cfg_reg(UART2_RTS);
235	omap_cfg_reg(UART3_TX);
236	omap_cfg_reg(UART3_RX);
237
238	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
239
240	gpiod_add_lookup_table(&palmte_irq_gpio_table);
241	d = gpiod_get(NULL, "tsc2102_irq", GPIOD_IN);
242	if (IS_ERR(d))
243		pr_err("Unable to get TSC2102 IRQ GPIO descriptor\n");
244	else
245		palmte_spi_info[0].irq = gpiod_to_irq(d);
246	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
247
248	/* We are getting this just to set it up as input */
249	d = gpiod_get(NULL, "usb_dc_irq", GPIOD_IN);
250	if (IS_ERR(d))
251		pr_err("Unable to get USB/DC IRQ GPIO descriptor\n");
252	else
253		gpiod_put(d);
254
255	omap_serial_init();
256	omap1_usb_init(&palmte_usb_config);
257	omap_register_i2c_bus(1, 100, NULL, 0);
258
259	omapfb_set_lcd_config(&palmte_lcd_config);
260	palmte_mmc_init();
261}
262
263MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
264	.atag_offset	= 0x100,
265	.map_io		= omap1_map_io,
266	.init_early     = omap1_init_early,
267	.init_irq	= omap1_init_irq,
268	.init_machine	= omap_palmte_init,
269	.init_late	= omap1_init_late,
270	.init_time	= omap1_timer_init,
271	.restart	= omap1_restart,
272MACHINE_END
273