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 #define PALMTE_DC_GPIO OMAP_MPUIO(2)
55 #define PALMTE_MMC_SWITCH_GPIO OMAP_MPUIO(4)
56 #define PALMTE_MMC1_GPIO OMAP_MPUIO(6)
57 #define PALMTE_MMC2_GPIO OMAP_MPUIO(7)
58 #define PALMTE_MMC3_GPIO OMAP_MPUIO(11)
59
60 static const unsigned int palmte_keymap[] = {
61 KEY(0, 0, KEY_F1), /* Calendar */
62 KEY(1, 0, KEY_F2), /* Contacts */
63 KEY(2, 0, KEY_F3), /* Tasks List */
64 KEY(3, 0, KEY_F4), /* Note Pad */
65 KEY(4, 0, KEY_POWER),
66 KEY(0, 1, KEY_LEFT),
67 KEY(1, 1, KEY_DOWN),
68 KEY(2, 1, KEY_UP),
69 KEY(3, 1, KEY_RIGHT),
70 KEY(4, 1, KEY_ENTER),
71 };
72
73 static const struct matrix_keymap_data palmte_keymap_data = {
74 .keymap = palmte_keymap,
75 .keymap_size = ARRAY_SIZE(palmte_keymap),
76 };
77
78 static struct omap_kp_platform_data palmte_kp_data = {
79 .rows = 8,
80 .cols = 8,
81 .keymap_data = &palmte_keymap_data,
82 .rep = true,
83 .delay = 12,
84 };
85
86 static struct resource palmte_kp_resources[] = {
87 [0] = {
88 .start = INT_KEYBOARD,
89 .end = INT_KEYBOARD,
90 .flags = IORESOURCE_IRQ,
91 },
92 };
93
94 static struct platform_device palmte_kp_device = {
95 .name = "omap-keypad",
96 .id = -1,
97 .dev = {
98 .platform_data = &palmte_kp_data,
99 },
100 .num_resources = ARRAY_SIZE(palmte_kp_resources),
101 .resource = palmte_kp_resources,
102 };
103
104 static struct mtd_partition palmte_rom_partitions[] = {
105 /* PalmOS "Small ROM", contains the bootloader and the debugger */
106 {
107 .name = "smallrom",
108 .offset = 0,
109 .size = 0xa000,
110 .mask_flags = MTD_WRITEABLE,
111 },
112 /* PalmOS "Big ROM", a filesystem with all the OS code and data */
113 {
114 .name = "bigrom",
115 .offset = SZ_128K,
116 /*
117 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
118 * 0x7b0000 bytes in the English-only ("enUS") version.
119 */
120 .size = 0x7b0000,
121 .mask_flags = MTD_WRITEABLE,
122 },
123 };
124
125 static struct physmap_flash_data palmte_rom_data = {
126 .width = 2,
127 .set_vpp = omap1_set_vpp,
128 .parts = palmte_rom_partitions,
129 .nr_parts = ARRAY_SIZE(palmte_rom_partitions),
130 };
131
132 static struct resource palmte_rom_resource = {
133 .start = OMAP_CS0_PHYS,
134 .end = OMAP_CS0_PHYS + SZ_8M - 1,
135 .flags = IORESOURCE_MEM,
136 };
137
138 static struct platform_device palmte_rom_device = {
139 .name = "physmap-flash",
140 .id = -1,
141 .dev = {
142 .platform_data = &palmte_rom_data,
143 },
144 .num_resources = 1,
145 .resource = &palmte_rom_resource,
146 };
147
148 static struct platform_device palmte_lcd_device = {
149 .name = "lcd_palmte",
150 .id = -1,
151 };
152
153 static struct omap_backlight_config palmte_backlight_config = {
154 .default_intensity = 0xa0,
155 };
156
157 static struct platform_device palmte_backlight_device = {
158 .name = "omap-bl",
159 .id = -1,
160 .dev = {
161 .platform_data = &palmte_backlight_config,
162 },
163 };
164
165 static struct platform_device *palmte_devices[] __initdata = {
166 &palmte_rom_device,
167 &palmte_kp_device,
168 &palmte_lcd_device,
169 &palmte_backlight_device,
170 };
171
172 static struct omap_usb_config palmte_usb_config __initdata = {
173 .register_dev = 1, /* Mini-B only receptacle */
174 .hmc_mode = 0,
175 .pins[0] = 2,
176 };
177
178 static const struct omap_lcd_config palmte_lcd_config __initconst = {
179 .ctrl_name = "internal",
180 };
181
182 static struct spi_board_info palmte_spi_info[] __initdata = {
183 {
184 .modalias = "tsc2102",
185 .bus_num = 2, /* uWire (officially) */
186 .chip_select = 0, /* As opposed to 3 */
187 .max_speed_hz = 8000000,
188 },
189 };
190
191 #if IS_ENABLED(CONFIG_MMC_OMAP)
192
193 static struct omap_mmc_platform_data _palmte_mmc_config = {
194 .nr_slots = 1,
195 .slots[0] = {
196 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
197 .name = "mmcblk",
198 },
199 };
200
201 static struct omap_mmc_platform_data *palmte_mmc_config[OMAP15XX_NR_MMC] = {
202 [0] = &_palmte_mmc_config,
203 };
204
palmte_mmc_init(void)205 static void palmte_mmc_init(void)
206 {
207 omap1_init_mmc(palmte_mmc_config, OMAP15XX_NR_MMC);
208 }
209
210 #else /* CONFIG_MMC_OMAP */
211
palmte_mmc_init(void)212 static void palmte_mmc_init(void)
213 {
214 }
215
216 #endif /* CONFIG_MMC_OMAP */
217
218 static struct gpiod_lookup_table palmte_irq_gpio_table = {
219 .dev_id = NULL,
220 .table = {
221 /* GPIO used for TSC2102 PINTDAV IRQ */
222 GPIO_LOOKUP("gpio-0-15", PALMTE_PINTDAV_GPIO, "tsc2102_irq",
223 GPIO_ACTIVE_HIGH),
224 /* GPIO used for USB or DC input detection */
225 GPIO_LOOKUP("gpio-0-15", PALMTE_USB_OR_DC_GPIO, "usb_dc_irq",
226 GPIO_ACTIVE_HIGH),
227 { }
228 },
229 };
230
omap_palmte_init(void)231 static void __init omap_palmte_init(void)
232 {
233 struct gpio_desc *d;
234
235 /* mux pins for uarts */
236 omap_cfg_reg(UART1_TX);
237 omap_cfg_reg(UART1_RTS);
238 omap_cfg_reg(UART2_TX);
239 omap_cfg_reg(UART2_RTS);
240 omap_cfg_reg(UART3_TX);
241 omap_cfg_reg(UART3_RX);
242
243 platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
244
245 gpiod_add_lookup_table(&palmte_irq_gpio_table);
246 d = gpiod_get(NULL, "tsc2102_irq", GPIOD_IN);
247 if (IS_ERR(d))
248 pr_err("Unable to get TSC2102 IRQ GPIO descriptor\n");
249 else
250 palmte_spi_info[0].irq = gpiod_to_irq(d);
251 spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
252
253 /* We are getting this just to set it up as input */
254 d = gpiod_get(NULL, "usb_dc_irq", GPIOD_IN);
255 if (IS_ERR(d))
256 pr_err("Unable to get USB/DC IRQ GPIO descriptor\n");
257 else
258 gpiod_put(d);
259
260 omap_serial_init();
261 omap1_usb_init(&palmte_usb_config);
262 omap_register_i2c_bus(1, 100, NULL, 0);
263
264 omapfb_set_lcd_config(&palmte_lcd_config);
265 palmte_mmc_init();
266 }
267
268 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
269 .atag_offset = 0x100,
270 .map_io = omap1_map_io,
271 .init_early = omap1_init_early,
272 .init_irq = omap1_init_irq,
273 .init_machine = omap_palmte_init,
274 .init_late = omap1_init_late,
275 .init_time = omap1_timer_init,
276 .restart = omap1_restart,
277 MACHINE_END
278