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.h>
10 #include <linux/gpio/machine.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/mutex.h>
14 #include <linux/platform_device.h>
15 #include <linux/input.h>
16 #include <linux/omapfb.h>
17
18 #include <linux/spi/spi.h>
19 #include <linux/spi/ads7846.h>
20 #include <linux/workqueue.h>
21 #include <linux/delay.h>
22
23 #include <linux/platform_data/keypad-omap.h>
24 #include <linux/platform_data/lcd-mipid.h>
25 #include <linux/platform_data/gpio-omap.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30
31 #include "mux.h"
32 #include "hardware.h"
33 #include "usb.h"
34 #include "common.h"
35 #include "clock.h"
36 #include "mmc.h"
37
38 #define ADS7846_PENDOWN_GPIO 15
39
40 static const unsigned int nokia770_keymap[] = {
41 KEY(1, 0, GROUP_0 | KEY_UP),
42 KEY(2, 0, GROUP_1 | KEY_F5),
43 KEY(0, 1, GROUP_0 | KEY_LEFT),
44 KEY(1, 1, GROUP_0 | KEY_ENTER),
45 KEY(2, 1, GROUP_0 | KEY_RIGHT),
46 KEY(0, 2, GROUP_1 | KEY_ESC),
47 KEY(1, 2, GROUP_0 | KEY_DOWN),
48 KEY(2, 2, GROUP_1 | KEY_F4),
49 KEY(0, 3, GROUP_2 | KEY_F7),
50 KEY(1, 3, GROUP_2 | KEY_F8),
51 KEY(2, 3, GROUP_2 | KEY_F6),
52 };
53
54 static struct resource nokia770_kp_resources[] = {
55 [0] = {
56 .start = INT_KEYBOARD,
57 .end = INT_KEYBOARD,
58 .flags = IORESOURCE_IRQ,
59 },
60 };
61
62 static const struct matrix_keymap_data nokia770_keymap_data = {
63 .keymap = nokia770_keymap,
64 .keymap_size = ARRAY_SIZE(nokia770_keymap),
65 };
66
67 static struct omap_kp_platform_data nokia770_kp_data = {
68 .rows = 8,
69 .cols = 8,
70 .keymap_data = &nokia770_keymap_data,
71 .delay = 4,
72 };
73
74 static struct platform_device nokia770_kp_device = {
75 .name = "omap-keypad",
76 .id = -1,
77 .dev = {
78 .platform_data = &nokia770_kp_data,
79 },
80 .num_resources = ARRAY_SIZE(nokia770_kp_resources),
81 .resource = nokia770_kp_resources,
82 };
83
84 static struct platform_device *nokia770_devices[] __initdata = {
85 &nokia770_kp_device,
86 };
87
mipid_shutdown(struct mipid_platform_data * pdata)88 static void mipid_shutdown(struct mipid_platform_data *pdata)
89 {
90 if (pdata->nreset_gpio != -1) {
91 printk(KERN_INFO "shutdown LCD\n");
92 gpio_set_value(pdata->nreset_gpio, 0);
93 msleep(120);
94 }
95 }
96
97 static struct mipid_platform_data nokia770_mipid_platform_data = {
98 .shutdown = mipid_shutdown,
99 };
100
101 static const struct omap_lcd_config nokia770_lcd_config __initconst = {
102 .ctrl_name = "hwa742",
103 };
104
mipid_dev_init(void)105 static void __init mipid_dev_init(void)
106 {
107 nokia770_mipid_platform_data.nreset_gpio = 13;
108 nokia770_mipid_platform_data.data_lines = 16;
109
110 omapfb_set_lcd_config(&nokia770_lcd_config);
111 }
112
113 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
114 .x_max = 0x0fff,
115 .y_max = 0x0fff,
116 .x_plate_ohms = 180,
117 .pressure_max = 255,
118 .debounce_max = 10,
119 .debounce_tol = 3,
120 .debounce_rep = 1,
121 .gpio_pendown = ADS7846_PENDOWN_GPIO,
122 };
123
124 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
125 [0] = {
126 .modalias = "lcd_mipid",
127 .bus_num = 2,
128 .chip_select = 3,
129 .max_speed_hz = 12000000,
130 .platform_data = &nokia770_mipid_platform_data,
131 },
132 [1] = {
133 .modalias = "ads7846",
134 .bus_num = 2,
135 .chip_select = 0,
136 .max_speed_hz = 2500000,
137 .platform_data = &nokia770_ads7846_platform_data,
138 },
139 };
140
hwa742_dev_init(void)141 static void __init hwa742_dev_init(void)
142 {
143 clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
144 }
145
146 /* assume no Mini-AB port */
147
148 static struct omap_usb_config nokia770_usb_config __initdata = {
149 .otg = 1,
150 .register_host = 1,
151 .register_dev = 1,
152 .hmc_mode = 16,
153 .pins[0] = 6,
154 .extcon = "tahvo-usb",
155 };
156
157 #if IS_ENABLED(CONFIG_MMC_OMAP)
158
159 #define NOKIA770_GPIO_MMC_POWER 41
160 #define NOKIA770_GPIO_MMC_SWITCH 23
161
nokia770_mmc_set_power(struct device * dev,int slot,int power_on,int vdd)162 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
163 int vdd)
164 {
165 gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
166 return 0;
167 }
168
nokia770_mmc_get_cover_state(struct device * dev,int slot)169 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
170 {
171 return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
172 }
173
174 static struct omap_mmc_platform_data nokia770_mmc2_data = {
175 .nr_slots = 1,
176 .max_freq = 12000000,
177 .slots[0] = {
178 .set_power = nokia770_mmc_set_power,
179 .get_cover_state = nokia770_mmc_get_cover_state,
180 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
181 .name = "mmcblk",
182 },
183 };
184
185 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
186
nokia770_mmc_init(void)187 static void __init nokia770_mmc_init(void)
188 {
189 int ret;
190
191 ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
192 if (ret < 0)
193 return;
194 gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
195
196 ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
197 if (ret < 0) {
198 gpio_free(NOKIA770_GPIO_MMC_POWER);
199 return;
200 }
201 gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
202
203 /* Only the second MMC controller is used */
204 nokia770_mmc_data[1] = &nokia770_mmc2_data;
205 omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
206 }
207
208 #else
nokia770_mmc_init(void)209 static inline void nokia770_mmc_init(void)
210 {
211 }
212 #endif
213
214 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
215 static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
216 .dev_id = "i2c-cbus-gpio.2",
217 .table = {
218 GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
219 GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
220 GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
221 { },
222 },
223 };
224
225 static struct platform_device nokia770_cbus_device = {
226 .name = "i2c-cbus-gpio",
227 .id = 2,
228 };
229
230 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
231 {
232 I2C_BOARD_INFO("retu", 0x01),
233 },
234 {
235 I2C_BOARD_INFO("tahvo", 0x02),
236 },
237 };
238
nokia770_cbus_init(void)239 static void __init nokia770_cbus_init(void)
240 {
241 const int retu_irq_gpio = 62;
242 const int tahvo_irq_gpio = 40;
243
244 if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
245 return;
246 if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
247 gpio_free(retu_irq_gpio);
248 return;
249 }
250 irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
251 irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
252 nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
253 nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
254 i2c_register_board_info(2, nokia770_i2c_board_info_2,
255 ARRAY_SIZE(nokia770_i2c_board_info_2));
256 gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
257 platform_device_register(&nokia770_cbus_device);
258 }
259 #else /* CONFIG_I2C_CBUS_GPIO */
nokia770_cbus_init(void)260 static void __init nokia770_cbus_init(void)
261 {
262 }
263 #endif /* CONFIG_I2C_CBUS_GPIO */
264
omap_nokia770_init(void)265 static void __init omap_nokia770_init(void)
266 {
267 /* On Nokia 770, the SleepX signal is masked with an
268 * MPUIO line by default. It has to be unmasked for it
269 * to become functional */
270
271 /* SleepX mask direction */
272 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
273 /* Unmask SleepX signal */
274 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
275
276 platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
277 nokia770_spi_board_info[1].irq = gpio_to_irq(15);
278 spi_register_board_info(nokia770_spi_board_info,
279 ARRAY_SIZE(nokia770_spi_board_info));
280 omap_serial_init();
281 omap_register_i2c_bus(1, 100, NULL, 0);
282 hwa742_dev_init();
283 mipid_dev_init();
284 omap1_usb_init(&nokia770_usb_config);
285 nokia770_mmc_init();
286 nokia770_cbus_init();
287 }
288
289 MACHINE_START(NOKIA770, "Nokia 770")
290 .atag_offset = 0x100,
291 .map_io = omap16xx_map_io,
292 .init_early = omap1_init_early,
293 .init_irq = omap1_init_irq,
294 .handle_irq = omap1_handle_irq,
295 .init_machine = omap_nokia770_init,
296 .init_late = omap1_init_late,
297 .init_time = omap1_timer_init,
298 .restart = omap1_restart,
299 MACHINE_END
300
