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/platform_data/omap1_bl.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 <mach/tc.h>
37 #include <linux/omap-dma.h>
38 #include <linux/platform_data/keypad-omap.h>
39 
40 #include <mach/hardware.h>
41 #include <mach/usb.h>
42 
43 #include "mmc.h"
44 #include "common.h"
45 
46 #define PALMTE_USBDETECT_GPIO	0
47 #define PALMTE_USB_OR_DC_GPIO	1
48 #define PALMTE_TSC_GPIO		4
49 #define PALMTE_PINTDAV_GPIO	6
50 #define PALMTE_MMC_WP_GPIO	8
51 #define PALMTE_MMC_POWER_GPIO	9
52 #define PALMTE_HDQ_GPIO		11
53 #define PALMTE_HEADPHONES_GPIO	14
54 #define PALMTE_SPEAKER_GPIO	15
55 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
56 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
57 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
58 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
59 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)
60 
61 static const unsigned int palmte_keymap[] = {
62 	KEY(0, 0, KEY_F1),		/* Calendar */
63 	KEY(1, 0, KEY_F2),		/* Contacts */
64 	KEY(2, 0, KEY_F3),		/* Tasks List */
65 	KEY(3, 0, KEY_F4),		/* Note Pad */
66 	KEY(4, 0, KEY_POWER),
67 	KEY(0, 1, KEY_LEFT),
68 	KEY(1, 1, KEY_DOWN),
69 	KEY(2, 1, KEY_UP),
70 	KEY(3, 1, KEY_RIGHT),
71 	KEY(4, 1, KEY_ENTER),
72 };
73 
74 static const struct matrix_keymap_data palmte_keymap_data = {
75 	.keymap		= palmte_keymap,
76 	.keymap_size	= ARRAY_SIZE(palmte_keymap),
77 };
78 
79 static struct omap_kp_platform_data palmte_kp_data = {
80 	.rows	= 8,
81 	.cols	= 8,
82 	.keymap_data = &palmte_keymap_data,
83 	.rep	= true,
84 	.delay	= 12,
85 };
86 
87 static struct resource palmte_kp_resources[] = {
88 	[0]	= {
89 		.start	= INT_KEYBOARD,
90 		.end	= INT_KEYBOARD,
91 		.flags	= IORESOURCE_IRQ,
92 	},
93 };
94 
95 static struct platform_device palmte_kp_device = {
96 	.name		= "omap-keypad",
97 	.id		= -1,
98 	.dev		= {
99 		.platform_data	= &palmte_kp_data,
100 	},
101 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
102 	.resource	= palmte_kp_resources,
103 };
104 
105 static struct mtd_partition palmte_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 
126 static struct physmap_flash_data palmte_rom_data = {
127 	.width		= 2,
128 	.set_vpp	= omap1_set_vpp,
129 	.parts		= palmte_rom_partitions,
130 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
131 };
132 
133 static struct resource palmte_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 palmte_rom_device = {
140 	.name		= "physmap-flash",
141 	.id		= -1,
142 	.dev		= {
143 		.platform_data	= &palmte_rom_data,
144 	},
145 	.num_resources	= 1,
146 	.resource	= &palmte_rom_resource,
147 };
148 
149 static struct platform_device palmte_lcd_device = {
150 	.name		= "lcd_palmte",
151 	.id		= -1,
152 };
153 
154 static struct omap_backlight_config palmte_backlight_config = {
155 	.default_intensity	= 0xa0,
156 };
157 
158 static struct platform_device palmte_backlight_device = {
159 	.name		= "omap-bl",
160 	.id		= -1,
161 	.dev		= {
162 		.platform_data	= &palmte_backlight_config,
163 	},
164 };
165 
166 static struct platform_device *palmte_devices[] __initdata = {
167 	&palmte_rom_device,
168 	&palmte_kp_device,
169 	&palmte_lcd_device,
170 	&palmte_backlight_device,
171 };
172 
173 static struct omap_usb_config palmte_usb_config __initdata = {
174 	.register_dev	= 1,	/* Mini-B only receptacle */
175 	.hmc_mode	= 0,
176 	.pins[0]	= 2,
177 };
178 
179 static const struct omap_lcd_config palmte_lcd_config __initconst = {
180 	.ctrl_name	= "internal",
181 };
182 
183 static struct spi_board_info palmte_spi_info[] __initdata = {
184 	{
185 		.modalias	= "tsc2102",
186 		.bus_num	= 2,	/* uWire (officially) */
187 		.chip_select	= 0,	/* As opposed to 3 */
188 		.max_speed_hz	= 8000000,
189 	},
190 };
191 
192 static void __init palmte_misc_gpio_setup(void)
193 {
194 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
195 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
196 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
197 		return;
198 	}
199 	gpio_direction_input(PALMTE_PINTDAV_GPIO);
200 
201 	/* Set USB-or-DC-IN pin as input (unused) */
202 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
203 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
204 		return;
205 	}
206 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
207 }
208 
209 #if IS_ENABLED(CONFIG_MMC_OMAP)
210 
211 static struct omap_mmc_platform_data _palmte_mmc_config = {
212 	.nr_slots			= 1,
213 	.slots[0]			= {
214 		.ocr_mask		= MMC_VDD_32_33|MMC_VDD_33_34,
215 		.name			= "mmcblk",
216 	},
217 };
218 
219 static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
220 	[0] = &_palmte_mmc_config,
221 };
222 
223 static void palmte_mmc_init(void)
224 {
225 	omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
226 }
227 
228 #else /* CONFIG_MMC_OMAP */
229 
230 static void palmte_mmc_init(void)
231 {
232 }
233 
234 #endif /* CONFIG_MMC_OMAP */
235 
236 static void __init omap_palmte_init(void)
237 {
238 	/* mux pins for uarts */
239 	omap_cfg_reg(UART1_TX);
240 	omap_cfg_reg(UART1_RTS);
241 	omap_cfg_reg(UART2_TX);
242 	omap_cfg_reg(UART2_RTS);
243 	omap_cfg_reg(UART3_TX);
244 	omap_cfg_reg(UART3_RX);
245 
246 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
247 
248 	palmte_spi_info[0].irq = gpio_to_irq(PALMTE_PINTDAV_GPIO);
249 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
250 	palmte_misc_gpio_setup();
251 	omap_serial_init();
252 	omap1_usb_init(&palmte_usb_config);
253 	omap_register_i2c_bus(1, 100, NULL, 0);
254 
255 	omapfb_set_lcd_config(&palmte_lcd_config);
256 	palmte_mmc_init();
257 }
258 
259 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
260 	.atag_offset	= 0x100,
261 	.map_io		= omap15xx_map_io,
262 	.init_early     = omap1_init_early,
263 	.init_irq	= omap1_init_irq,
264 	.handle_irq	= omap1_handle_irq,
265 	.init_machine	= omap_palmte_init,
266 	.init_late	= omap1_init_late,
267 	.init_time	= omap1_timer_init,
268 	.restart	= omap1_restart,
269 MACHINE_END
270