1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * linux/arch/arm/mach-omap1/board-nokia770.c |
4 | * |
5 | * Modified from board-generic.c |
6 | */ |
7 | #include <linux/clkdev.h> |
8 | #include <linux/irq.h> |
9 | #include <linux/gpio/consumer.h> |
10 | #include <linux/gpio/machine.h> |
11 | #include <linux/gpio/property.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/init.h> |
14 | #include <linux/mutex.h> |
15 | #include <linux/platform_device.h> |
16 | #include <linux/property.h> |
17 | #include <linux/input.h> |
18 | #include <linux/omapfb.h> |
19 | |
20 | #include <linux/spi/spi.h> |
21 | #include <linux/workqueue.h> |
22 | #include <linux/delay.h> |
23 | |
24 | #include <linux/platform_data/keypad-omap.h> |
25 | #include <linux/platform_data/lcd-mipid.h> |
26 | #include <linux/platform_data/gpio-omap.h> |
27 | |
28 | #include <asm/mach-types.h> |
29 | #include <asm/mach/arch.h> |
30 | #include <asm/mach/map.h> |
31 | |
32 | #include "mux.h" |
33 | #include "hardware.h" |
34 | #include "usb.h" |
35 | #include "common.h" |
36 | #include "clock.h" |
37 | #include "mmc.h" |
38 | |
39 | static const struct software_node nokia770_mpuio_gpiochip_node = { |
40 | .name = "mpuio" , |
41 | }; |
42 | |
43 | static const struct software_node nokia770_gpiochip1_node = { |
44 | .name = "gpio-0-15" , |
45 | }; |
46 | |
47 | static const struct software_node nokia770_gpiochip2_node = { |
48 | .name = "gpio-16-31" , |
49 | }; |
50 | |
51 | static const struct software_node *nokia770_gpiochip_nodes[] = { |
52 | &nokia770_mpuio_gpiochip_node, |
53 | &nokia770_gpiochip1_node, |
54 | &nokia770_gpiochip2_node, |
55 | NULL |
56 | }; |
57 | |
58 | #define ADS7846_PENDOWN_GPIO 15 |
59 | |
60 | static const unsigned int nokia770_keymap[] = { |
61 | KEY(1, 0, GROUP_0 | KEY_UP), |
62 | KEY(2, 0, GROUP_1 | KEY_F5), |
63 | KEY(0, 1, GROUP_0 | KEY_LEFT), |
64 | KEY(1, 1, GROUP_0 | KEY_ENTER), |
65 | KEY(2, 1, GROUP_0 | KEY_RIGHT), |
66 | KEY(0, 2, GROUP_1 | KEY_ESC), |
67 | KEY(1, 2, GROUP_0 | KEY_DOWN), |
68 | KEY(2, 2, GROUP_1 | KEY_F4), |
69 | KEY(0, 3, GROUP_2 | KEY_F7), |
70 | KEY(1, 3, GROUP_2 | KEY_F8), |
71 | KEY(2, 3, GROUP_2 | KEY_F6), |
72 | }; |
73 | |
74 | static struct resource nokia770_kp_resources[] = { |
75 | [0] = { |
76 | .start = INT_KEYBOARD, |
77 | .end = INT_KEYBOARD, |
78 | .flags = IORESOURCE_IRQ, |
79 | }, |
80 | }; |
81 | |
82 | static const struct matrix_keymap_data nokia770_keymap_data = { |
83 | .keymap = nokia770_keymap, |
84 | .keymap_size = ARRAY_SIZE(nokia770_keymap), |
85 | }; |
86 | |
87 | static struct omap_kp_platform_data nokia770_kp_data = { |
88 | .rows = 8, |
89 | .cols = 8, |
90 | .keymap_data = &nokia770_keymap_data, |
91 | .delay = 4, |
92 | }; |
93 | |
94 | static struct platform_device nokia770_kp_device = { |
95 | .name = "omap-keypad" , |
96 | .id = -1, |
97 | .dev = { |
98 | .platform_data = &nokia770_kp_data, |
99 | }, |
100 | .num_resources = ARRAY_SIZE(nokia770_kp_resources), |
101 | .resource = nokia770_kp_resources, |
102 | }; |
103 | |
104 | static struct platform_device *nokia770_devices[] __initdata = { |
105 | &nokia770_kp_device, |
106 | }; |
107 | |
108 | static struct mipid_platform_data nokia770_mipid_platform_data = { }; |
109 | |
110 | static const struct omap_lcd_config nokia770_lcd_config __initconst = { |
111 | .ctrl_name = "hwa742" , |
112 | }; |
113 | |
114 | static const struct property_entry nokia770_mipid_props[] = { |
115 | PROPERTY_ENTRY_GPIO("reset-gpios" , &nokia770_gpiochip1_node, |
116 | 13, GPIO_ACTIVE_LOW), |
117 | { } |
118 | }; |
119 | |
120 | static const struct software_node nokia770_mipid_swnode = { |
121 | .name = "lcd_mipid" , |
122 | .properties = nokia770_mipid_props, |
123 | }; |
124 | |
125 | static void __init mipid_dev_init(void) |
126 | { |
127 | nokia770_mipid_platform_data.data_lines = 16; |
128 | |
129 | omapfb_set_lcd_config(config: &nokia770_lcd_config); |
130 | } |
131 | |
132 | static const struct property_entry nokia770_ads7846_props[] = { |
133 | PROPERTY_ENTRY_STRING("compatible" , "ti,ads7846" ), |
134 | PROPERTY_ENTRY_U32("touchscreen-size-x" , 4096), |
135 | PROPERTY_ENTRY_U32("touchscreen-size-y" , 4096), |
136 | PROPERTY_ENTRY_U32("touchscreen-max-pressure" , 256), |
137 | PROPERTY_ENTRY_U32("touchscreen-average-samples" , 10), |
138 | PROPERTY_ENTRY_U16("ti,x-plate-ohms" , 180), |
139 | PROPERTY_ENTRY_U16("ti,debounce-tol" , 3), |
140 | PROPERTY_ENTRY_U16("ti,debounce-rep" , 1), |
141 | PROPERTY_ENTRY_GPIO("pendown-gpios" , &nokia770_gpiochip1_node, |
142 | ADS7846_PENDOWN_GPIO, GPIO_ACTIVE_LOW), |
143 | { } |
144 | }; |
145 | |
146 | static const struct software_node nokia770_ads7846_swnode = { |
147 | .name = "ads7846" , |
148 | .properties = nokia770_ads7846_props, |
149 | }; |
150 | |
151 | static struct spi_board_info nokia770_spi_board_info[] __initdata = { |
152 | [0] = { |
153 | .modalias = "lcd_mipid" , |
154 | .bus_num = 2, |
155 | .chip_select = 3, |
156 | .max_speed_hz = 12000000, |
157 | .platform_data = &nokia770_mipid_platform_data, |
158 | .swnode = &nokia770_mipid_swnode, |
159 | }, |
160 | [1] = { |
161 | .modalias = "ads7846" , |
162 | .bus_num = 2, |
163 | .chip_select = 0, |
164 | .max_speed_hz = 2500000, |
165 | .swnode = &nokia770_ads7846_swnode, |
166 | }, |
167 | }; |
168 | |
169 | static void __init hwa742_dev_init(void) |
170 | { |
171 | clk_add_alias("hwa_sys_ck" , NULL, "bclk" , NULL); |
172 | } |
173 | |
174 | /* assume no Mini-AB port */ |
175 | |
176 | static struct omap_usb_config nokia770_usb_config __initdata = { |
177 | .otg = 1, |
178 | .register_host = 1, |
179 | .register_dev = 1, |
180 | .hmc_mode = 16, |
181 | .pins[0] = 6, |
182 | .extcon = "tahvo-usb" , |
183 | }; |
184 | |
185 | #if IS_ENABLED(CONFIG_MMC_OMAP) |
186 | |
187 | static struct gpiod_lookup_table nokia770_mmc_gpio_table = { |
188 | .dev_id = "mmci-omap.1" , |
189 | .table = { |
190 | /* Slot index 0, VSD power, GPIO 41 */ |
191 | GPIO_LOOKUP_IDX("gpio-32-47" , 9, |
192 | "vsd" , 0, GPIO_ACTIVE_HIGH), |
193 | /* Slot index 0, switch, GPIO 23 */ |
194 | GPIO_LOOKUP_IDX("gpio-16-31" , 7, |
195 | "cover" , 0, GPIO_ACTIVE_HIGH), |
196 | { } |
197 | }, |
198 | }; |
199 | |
200 | static struct omap_mmc_platform_data nokia770_mmc2_data = { |
201 | .nr_slots = 1, |
202 | .max_freq = 12000000, |
203 | .slots[0] = { |
204 | .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, |
205 | .name = "mmcblk" , |
206 | }, |
207 | }; |
208 | |
209 | static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC]; |
210 | |
211 | static void __init nokia770_mmc_init(void) |
212 | { |
213 | gpiod_add_lookup_table(&nokia770_mmc_gpio_table); |
214 | /* Only the second MMC controller is used */ |
215 | nokia770_mmc_data[1] = &nokia770_mmc2_data; |
216 | omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC); |
217 | } |
218 | |
219 | #else |
220 | static inline void nokia770_mmc_init(void) |
221 | { |
222 | } |
223 | #endif |
224 | |
225 | #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO) |
226 | |
227 | static const struct software_node_ref_args nokia770_cbus_gpio_refs[] = { |
228 | SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 9, 0), |
229 | SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 10, 0), |
230 | SOFTWARE_NODE_REFERENCE(&nokia770_mpuio_gpiochip_node, 11, 0), |
231 | }; |
232 | |
233 | static const struct property_entry nokia770_cbus_props[] = { |
234 | PROPERTY_ENTRY_REF_ARRAY("gpios" , nokia770_cbus_gpio_refs), |
235 | { } |
236 | }; |
237 | |
238 | static struct platform_device nokia770_cbus_device = { |
239 | .name = "i2c-cbus-gpio" , |
240 | .id = 2, |
241 | }; |
242 | |
243 | static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = { |
244 | { |
245 | I2C_BOARD_INFO("retu" , 0x01), |
246 | }, |
247 | { |
248 | I2C_BOARD_INFO("tahvo" , 0x02), |
249 | }, |
250 | }; |
251 | |
252 | static void __init nokia770_cbus_init(void) |
253 | { |
254 | struct gpio_desc *d; |
255 | int irq; |
256 | |
257 | d = gpiod_get(NULL, con_id: "retu_irq" , flags: GPIOD_IN); |
258 | if (IS_ERR(ptr: d)) { |
259 | pr_err("Unable to get CBUS Retu IRQ GPIO descriptor\n" ); |
260 | } else { |
261 | irq = gpiod_to_irq(desc: d); |
262 | irq_set_irq_type(irq, type: IRQ_TYPE_EDGE_RISING); |
263 | nokia770_i2c_board_info_2[0].irq = irq; |
264 | } |
265 | d = gpiod_get(NULL, con_id: "tahvo_irq" , flags: GPIOD_IN); |
266 | if (IS_ERR(ptr: d)) { |
267 | pr_err("Unable to get CBUS Tahvo IRQ GPIO descriptor\n" ); |
268 | } else { |
269 | irq = gpiod_to_irq(desc: d); |
270 | irq_set_irq_type(irq, type: IRQ_TYPE_EDGE_RISING); |
271 | nokia770_i2c_board_info_2[1].irq = irq; |
272 | } |
273 | i2c_register_board_info(busnum: 2, info: nokia770_i2c_board_info_2, |
274 | ARRAY_SIZE(nokia770_i2c_board_info_2)); |
275 | device_create_managed_software_node(dev: &nokia770_cbus_device.dev, |
276 | properties: nokia770_cbus_props, NULL); |
277 | platform_device_register(&nokia770_cbus_device); |
278 | } |
279 | #else /* CONFIG_I2C_CBUS_GPIO */ |
280 | static void __init nokia770_cbus_init(void) |
281 | { |
282 | } |
283 | #endif /* CONFIG_I2C_CBUS_GPIO */ |
284 | |
285 | static struct gpiod_lookup_table nokia770_irq_gpio_table = { |
286 | .dev_id = NULL, |
287 | .table = { |
288 | /* GPIO used by SPI device 1 */ |
289 | GPIO_LOOKUP("gpio-0-15" , 15, "ads7846_irq" , |
290 | GPIO_ACTIVE_HIGH), |
291 | /* GPIO used for retu IRQ */ |
292 | GPIO_LOOKUP("gpio-48-63" , 15, "retu_irq" , |
293 | GPIO_ACTIVE_HIGH), |
294 | /* GPIO used for tahvo IRQ */ |
295 | GPIO_LOOKUP("gpio-32-47" , 8, "tahvo_irq" , |
296 | GPIO_ACTIVE_HIGH), |
297 | /* GPIOs used by serial wakeup IRQs */ |
298 | GPIO_LOOKUP_IDX("gpio-32-47" , 5, "wakeup" , 0, |
299 | GPIO_ACTIVE_HIGH), |
300 | GPIO_LOOKUP_IDX("gpio-16-31" , 2, "wakeup" , 1, |
301 | GPIO_ACTIVE_HIGH), |
302 | GPIO_LOOKUP_IDX("gpio-48-63" , 1, "wakeup" , 2, |
303 | GPIO_ACTIVE_HIGH), |
304 | { } |
305 | }, |
306 | }; |
307 | |
308 | static void __init omap_nokia770_init(void) |
309 | { |
310 | struct gpio_desc *d; |
311 | |
312 | /* On Nokia 770, the SleepX signal is masked with an |
313 | * MPUIO line by default. It has to be unmasked for it |
314 | * to become functional */ |
315 | |
316 | /* SleepX mask direction */ |
317 | omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008); |
318 | /* Unmask SleepX signal */ |
319 | omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004); |
320 | |
321 | software_node_register_node_group(node_group: nokia770_gpiochip_nodes); |
322 | platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices)); |
323 | |
324 | gpiod_add_lookup_table(table: &nokia770_irq_gpio_table); |
325 | d = gpiod_get(NULL, con_id: "ads7846_irq" , flags: GPIOD_IN); |
326 | if (IS_ERR(ptr: d)) |
327 | pr_err("Unable to get ADS7846 IRQ GPIO descriptor\n" ); |
328 | else |
329 | nokia770_spi_board_info[1].irq = gpiod_to_irq(desc: d); |
330 | |
331 | spi_register_board_info(info: nokia770_spi_board_info, |
332 | ARRAY_SIZE(nokia770_spi_board_info)); |
333 | omap_serial_init(); |
334 | omap_register_i2c_bus(bus_id: 1, clkrate: 100, NULL, len: 0); |
335 | hwa742_dev_init(); |
336 | mipid_dev_init(); |
337 | omap1_usb_init(pdata: &nokia770_usb_config); |
338 | nokia770_mmc_init(); |
339 | nokia770_cbus_init(); |
340 | } |
341 | |
342 | MACHINE_START(NOKIA770, "Nokia 770" ) |
343 | .atag_offset = 0x100, |
344 | .map_io = omap1_map_io, |
345 | .init_early = omap1_init_early, |
346 | .init_irq = omap1_init_irq, |
347 | .init_machine = omap_nokia770_init, |
348 | .init_late = omap1_init_late, |
349 | .init_time = omap1_timer_init, |
350 | .restart = omap1_restart, |
351 | MACHINE_END |
352 | |