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
55 static 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
68 static const struct matrix_keymap_data palmte_keymap_data = {
69 .keymap = palmte_keymap,
70 .keymap_size = ARRAY_SIZE(palmte_keymap),
71 };
72
73 static 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
81 static struct resource palmte_kp_resources[] = {
82 [0] = {
83 .start = INT_KEYBOARD,
84 .end = INT_KEYBOARD,
85 .flags = IORESOURCE_IRQ,
86 },
87 };
88
89 static 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
99 static 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
120 static 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
127 static struct resource palmte_rom_resource = {
128 .start = OMAP_CS0_PHYS,
129 .end = OMAP_CS0_PHYS + SZ_8M - 1,
130 .flags = IORESOURCE_MEM,
131 };
132
133 static 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
143 static struct platform_device palmte_lcd_device = {
144 .name = "lcd_palmte",
145 .id = -1,
146 };
147
148 static struct omap_backlight_config palmte_backlight_config = {
149 .default_intensity = 0xa0,
150 };
151
152 static struct platform_device palmte_backlight_device = {
153 .name = "omap-bl",
154 .id = -1,
155 .dev = {
156 .platform_data = &palmte_backlight_config,
157 },
158 };
159
160 static struct platform_device *palmte_devices[] __initdata = {
161 &palmte_rom_device,
162 &palmte_kp_device,
163 &palmte_lcd_device,
164 &palmte_backlight_device,
165 };
166
167 static 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
173 static const struct omap_lcd_config palmte_lcd_config __initconst = {
174 .ctrl_name = "internal",
175 };
176
177 static 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
188 static 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
196 static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
197 [0] = &_palmte_mmc_config,
198 };
199
200 static void palmte_mmc_init(void)
201 {
202 omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
203 }
204
205 #else /* CONFIG_MMC_OMAP */
206
207 static void palmte_mmc_init(void)
208 {
209 }
210
211 #endif /* CONFIG_MMC_OMAP */
212
213 static 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
226 static 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
263 MACHINE_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,
272 MACHINE_END
273
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.