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
palmte_misc_gpio_setup(void)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
palmte_mmc_init(void)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
palmte_mmc_init(void)228 static void palmte_mmc_init(void)
229 {
230 }
231
232 #endif /* CONFIG_MMC_OMAP */
233
omap_palmte_init(void)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