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.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/input.h>
20 #include <linux/platform_device.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/partitions.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/spi/spi.h>
25 #include <linux/interrupt.h>
26 #include <linux/apm-emulation.h>
27 #include <linux/omapfb.h>
28 #include <linux/omap-dma.h>
29 #include <linux/platform_data/keypad-omap.h>
30 #include <linux/platform_data/omap1_bl.h>
31 
32 #include <asm/mach-types.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
35 
36 #include "tc.h"
37 #include "flash.h"
38 #include "mux.h"
39 #include "hardware.h"
40 #include "usb.h"
41 #include "mmc.h"
42 #include "common.h"
43 
44 #define PALMTE_USBDETECT_GPIO	0
45 #define PALMTE_USB_OR_DC_GPIO	1
46 #define PALMTE_TSC_GPIO		4
47 #define PALMTE_PINTDAV_GPIO	6
48 #define PALMTE_MMC_WP_GPIO	8
49 #define PALMTE_MMC_POWER_GPIO	9
50 #define PALMTE_HDQ_GPIO		11
51 #define PALMTE_HEADPHONES_GPIO	14
52 #define PALMTE_SPEAKER_GPIO	15
53 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
54 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
55 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
56 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
57 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)
58 
59 static const unsigned int palmte_keymap[] = {
60 	KEY(0, 0, KEY_F1),		/* Calendar */
61 	KEY(1, 0, KEY_F2),		/* Contacts */
62 	KEY(2, 0, KEY_F3),		/* Tasks List */
63 	KEY(3, 0, KEY_F4),		/* Note Pad */
64 	KEY(4, 0, KEY_POWER),
65 	KEY(0, 1, KEY_LEFT),
66 	KEY(1, 1, KEY_DOWN),
67 	KEY(2, 1, KEY_UP),
68 	KEY(3, 1, KEY_RIGHT),
69 	KEY(4, 1, KEY_ENTER),
70 };
71 
72 static const struct matrix_keymap_data palmte_keymap_data = {
73 	.keymap		= palmte_keymap,
74 	.keymap_size	= ARRAY_SIZE(palmte_keymap),
75 };
76 
77 static struct omap_kp_platform_data palmte_kp_data = {
78 	.rows	= 8,
79 	.cols	= 8,
80 	.keymap_data = &palmte_keymap_data,
81 	.rep	= true,
82 	.delay	= 12,
83 };
84 
85 static struct resource palmte_kp_resources[] = {
86 	[0]	= {
87 		.start	= INT_KEYBOARD,
88 		.end	= INT_KEYBOARD,
89 		.flags	= IORESOURCE_IRQ,
90 	},
91 };
92 
93 static struct platform_device palmte_kp_device = {
94 	.name		= "omap-keypad",
95 	.id		= -1,
96 	.dev		= {
97 		.platform_data	= &palmte_kp_data,
98 	},
99 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
100 	.resource	= palmte_kp_resources,
101 };
102 
103 static struct mtd_partition palmte_rom_partitions[] = {
104 	/* PalmOS "Small ROM", contains the bootloader and the debugger */
105 	{
106 		.name		= "smallrom",
107 		.offset		= 0,
108 		.size		= 0xa000,
109 		.mask_flags	= MTD_WRITEABLE,
110 	},
111 	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
112 	{
113 		.name		= "bigrom",
114 		.offset		= SZ_128K,
115 		/*
116 		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
117 		 * 0x7b0000 bytes in the English-only ("enUS") version.
118 		 */
119 		.size		= 0x7b0000,
120 		.mask_flags	= MTD_WRITEABLE,
121 	},
122 };
123 
124 static struct physmap_flash_data palmte_rom_data = {
125 	.width		= 2,
126 	.set_vpp	= omap1_set_vpp,
127 	.parts		= palmte_rom_partitions,
128 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
129 };
130 
131 static struct resource palmte_rom_resource = {
132 	.start		= OMAP_CS0_PHYS,
133 	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
134 	.flags		= IORESOURCE_MEM,
135 };
136 
137 static struct platform_device palmte_rom_device = {
138 	.name		= "physmap-flash",
139 	.id		= -1,
140 	.dev		= {
141 		.platform_data	= &palmte_rom_data,
142 	},
143 	.num_resources	= 1,
144 	.resource	= &palmte_rom_resource,
145 };
146 
147 static struct platform_device palmte_lcd_device = {
148 	.name		= "lcd_palmte",
149 	.id		= -1,
150 };
151 
152 static struct omap_backlight_config palmte_backlight_config = {
153 	.default_intensity	= 0xa0,
154 };
155 
156 static struct platform_device palmte_backlight_device = {
157 	.name		= "omap-bl",
158 	.id		= -1,
159 	.dev		= {
160 		.platform_data	= &palmte_backlight_config,
161 	},
162 };
163 
164 static struct platform_device *palmte_devices[] __initdata = {
165 	&palmte_rom_device,
166 	&palmte_kp_device,
167 	&palmte_lcd_device,
168 	&palmte_backlight_device,
169 };
170 
171 static struct omap_usb_config palmte_usb_config __initdata = {
172 	.register_dev	= 1,	/* Mini-B only receptacle */
173 	.hmc_mode	= 0,
174 	.pins[0]	= 2,
175 };
176 
177 static const struct omap_lcd_config palmte_lcd_config __initconst = {
178 	.ctrl_name	= "internal",
179 };
180 
181 static struct spi_board_info palmte_spi_info[] __initdata = {
182 	{
183 		.modalias	= "tsc2102",
184 		.bus_num	= 2,	/* uWire (officially) */
185 		.chip_select	= 0,	/* As opposed to 3 */
186 		.max_speed_hz	= 8000000,
187 	},
188 };
189 
190 static void __init palmte_misc_gpio_setup(void)
191 {
192 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
193 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
194 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
195 		return;
196 	}
197 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
198 
199 	/* Set USB-or-DC-IN pin as input (unused) */
200 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
201 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
202 		return;
203 	}
204 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
205 }
206 
207 #if IS_ENABLED(CONFIG_MMC_OMAP)
208 
209 static struct omap_mmc_platform_data _palmte_mmc_config = {
210 	.nr_slots			= 1,
211 	.slots[0]			= {
212 		.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
213 		.name			= "mmcblk",
214 	},
215 };
216 
217 static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
218 	[0] = &_palmte_mmc_config,
219 };
220 
221 static void palmte_mmc_init(void)
222 {
223 	omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
224 }
225 
226 #else /* CONFIG_MMC_OMAP */
227 
228 static void palmte_mmc_init(void)
229 {
230 }
231 
232 #endif /* CONFIG_MMC_OMAP */
233 
234 static void __init omap_palmte_init(void)
235 {
236 	/* mux pins for uarts */
237 	omap_cfg_reg(UART1_TX);
238 	omap_cfg_reg(UART1_RTS);
239 	omap_cfg_reg(UART2_TX);
240 	omap_cfg_reg(UART2_RTS);
241 	omap_cfg_reg(UART3_TX);
242 	omap_cfg_reg(UART3_RX);
243 
244 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
245 
246 	palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
247 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
248 	palmte_misc_gpio_setup();
249 	omap_serial_init();
250 	omap1_usb_init(&palmte_usb_config);
251 	omap_register_i2c_bus(1, 100, NULL, 0);
252 
253 	omapfb_set_lcd_config(&palmte_lcd_config);
254 	palmte_mmc_init();
255 }
256 
257 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
258 	.atag_offset	= 0x100,
259 	.map_io		= omap1_map_io,
260 	.init_early     = omap1_init_early,
261 	.init_irq	= omap1_init_irq,
262 	.handle_irq	= omap1_handle_irq,
263 	.init_machine	= omap_palmte_init,
264 	.init_late	= omap1_init_late,
265 	.init_time	= omap1_timer_init,
266 	.restart	= omap1_restart,
267 MACHINE_END
268