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(reg_cfg: UART1_TX); |
232 | omap_cfg_reg(reg_cfg: UART1_RTS); |
233 | omap_cfg_reg(reg_cfg: UART2_TX); |
234 | omap_cfg_reg(reg_cfg: UART2_RTS); |
235 | omap_cfg_reg(reg_cfg: UART3_TX); |
236 | omap_cfg_reg(reg_cfg: UART3_RX); |
237 | |
238 | platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices)); |
239 | |
240 | gpiod_add_lookup_table(table: &palmte_irq_gpio_table); |
241 | d = gpiod_get(NULL, con_id: "tsc2102_irq" , flags: GPIOD_IN); |
242 | if (IS_ERR(ptr: d)) |
243 | pr_err("Unable to get TSC2102 IRQ GPIO descriptor\n" ); |
244 | else |
245 | palmte_spi_info[0].irq = gpiod_to_irq(desc: d); |
246 | spi_register_board_info(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, con_id: "usb_dc_irq" , flags: GPIOD_IN); |
250 | if (IS_ERR(ptr: d)) |
251 | pr_err("Unable to get USB/DC IRQ GPIO descriptor\n" ); |
252 | else |
253 | gpiod_put(desc: d); |
254 | |
255 | omap_serial_init(); |
256 | omap1_usb_init(pdata: &palmte_usb_config); |
257 | omap_register_i2c_bus(bus_id: 1, clkrate: 100, NULL, len: 0); |
258 | |
259 | omapfb_set_lcd_config(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 | |