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 <mach/mux.h>
32
33 #include <mach/hardware.h>
34 #include <mach/usb.h>
35
36 #include "common.h"
37 #include "clock.h"
38 #include "mmc.h"
39
40 #define ADS7846_PENDOWN_GPIO 15
41
42 static const unsigned int nokia770_keymap[] = {
43 KEY(1, 0, GROUP_0 | KEY_UP),
44 KEY(2, 0, GROUP_1 | KEY_F5),
45 KEY(0, 1, GROUP_0 | KEY_LEFT),
46 KEY(1, 1, GROUP_0 | KEY_ENTER),
47 KEY(2, 1, GROUP_0 | KEY_RIGHT),
48 KEY(0, 2, GROUP_1 | KEY_ESC),
49 KEY(1, 2, GROUP_0 | KEY_DOWN),
50 KEY(2, 2, GROUP_1 | KEY_F4),
51 KEY(0, 3, GROUP_2 | KEY_F7),
52 KEY(1, 3, GROUP_2 | KEY_F8),
53 KEY(2, 3, GROUP_2 | KEY_F6),
54 };
55
56 static struct resource nokia770_kp_resources[] = {
57 [0] = {
58 .start = INT_KEYBOARD,
59 .end = INT_KEYBOARD,
60 .flags = IORESOURCE_IRQ,
61 },
62 };
63
64 static const struct matrix_keymap_data nokia770_keymap_data = {
65 .keymap = nokia770_keymap,
66 .keymap_size = ARRAY_SIZE(nokia770_keymap),
67 };
68
69 static struct omap_kp_platform_data nokia770_kp_data = {
70 .rows = 8,
71 .cols = 8,
72 .keymap_data = &nokia770_keymap_data,
73 .delay = 4,
74 };
75
76 static struct platform_device nokia770_kp_device = {
77 .name = "omap-keypad",
78 .id = -1,
79 .dev = {
80 .platform_data = &nokia770_kp_data,
81 },
82 .num_resources = ARRAY_SIZE(nokia770_kp_resources),
83 .resource = nokia770_kp_resources,
84 };
85
86 static struct platform_device *nokia770_devices[] __initdata = {
87 &nokia770_kp_device,
88 };
89
mipid_shutdown(struct mipid_platform_data * pdata)90 static void mipid_shutdown(struct mipid_platform_data *pdata)
91 {
92 if (pdata->nreset_gpio != -1) {
93 printk(KERN_INFO "shutdown LCD\n");
94 gpio_set_value(pdata->nreset_gpio, 0);
95 msleep(120);
96 }
97 }
98
99 static struct mipid_platform_data nokia770_mipid_platform_data = {
100 .shutdown = mipid_shutdown,
101 };
102
103 static const struct omap_lcd_config nokia770_lcd_config __initconst = {
104 .ctrl_name = "hwa742",
105 };
106
mipid_dev_init(void)107 static void __init mipid_dev_init(void)
108 {
109 nokia770_mipid_platform_data.nreset_gpio = 13;
110 nokia770_mipid_platform_data.data_lines = 16;
111
112 omapfb_set_lcd_config(&nokia770_lcd_config);
113 }
114
115 static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
116 .x_max = 0x0fff,
117 .y_max = 0x0fff,
118 .x_plate_ohms = 180,
119 .pressure_max = 255,
120 .debounce_max = 10,
121 .debounce_tol = 3,
122 .debounce_rep = 1,
123 .gpio_pendown = ADS7846_PENDOWN_GPIO,
124 };
125
126 static struct spi_board_info nokia770_spi_board_info[] __initdata = {
127 [0] = {
128 .modalias = "lcd_mipid",
129 .bus_num = 2,
130 .chip_select = 3,
131 .max_speed_hz = 12000000,
132 .platform_data = &nokia770_mipid_platform_data,
133 },
134 [1] = {
135 .modalias = "ads7846",
136 .bus_num = 2,
137 .chip_select = 0,
138 .max_speed_hz = 2500000,
139 .platform_data = &nokia770_ads7846_platform_data,
140 },
141 };
142
hwa742_dev_init(void)143 static void __init hwa742_dev_init(void)
144 {
145 clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
146 }
147
148 /* assume no Mini-AB port */
149
150 static struct omap_usb_config nokia770_usb_config __initdata = {
151 .otg = 1,
152 .register_host = 1,
153 .register_dev = 1,
154 .hmc_mode = 16,
155 .pins[0] = 6,
156 .extcon = "tahvo-usb",
157 };
158
159 #if IS_ENABLED(CONFIG_MMC_OMAP)
160
161 #define NOKIA770_GPIO_MMC_POWER 41
162 #define NOKIA770_GPIO_MMC_SWITCH 23
163
nokia770_mmc_set_power(struct device * dev,int slot,int power_on,int vdd)164 static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
165 int vdd)
166 {
167 gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
168 return 0;
169 }
170
nokia770_mmc_get_cover_state(struct device * dev,int slot)171 static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
172 {
173 return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
174 }
175
176 static struct omap_mmc_platform_data nokia770_mmc2_data = {
177 .nr_slots = 1,
178 .max_freq = 12000000,
179 .slots[0] = {
180 .set_power = nokia770_mmc_set_power,
181 .get_cover_state = nokia770_mmc_get_cover_state,
182 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
183 .name = "mmcblk",
184 },
185 };
186
187 static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
188
nokia770_mmc_init(void)189 static void __init nokia770_mmc_init(void)
190 {
191 int ret;
192
193 ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
194 if (ret < 0)
195 return;
196 gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);
197
198 ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
199 if (ret < 0) {
200 gpio_free(NOKIA770_GPIO_MMC_POWER);
201 return;
202 }
203 gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);
204
205 /* Only the second MMC controller is used */
206 nokia770_mmc_data[1] = &nokia770_mmc2_data;
207 omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
208 }
209
210 #else
nokia770_mmc_init(void)211 static inline void nokia770_mmc_init(void)
212 {
213 }
214 #endif
215
216 #if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
217 static struct gpiod_lookup_table nokia770_cbus_gpio_table = {
218 .dev_id = "i2c-cbus-gpio.2",
219 .table = {
220 GPIO_LOOKUP_IDX("mpuio", 9, NULL, 0, 0), /* clk */
221 GPIO_LOOKUP_IDX("mpuio", 10, NULL, 1, 0), /* dat */
222 GPIO_LOOKUP_IDX("mpuio", 11, NULL, 2, 0), /* sel */
223 { },
224 },
225 };
226
227 static struct platform_device nokia770_cbus_device = {
228 .name = "i2c-cbus-gpio",
229 .id = 2,
230 };
231
232 static struct i2c_board_info nokia770_i2c_board_info_2[] __initdata = {
233 {
234 I2C_BOARD_INFO("retu", 0x01),
235 },
236 {
237 I2C_BOARD_INFO("tahvo", 0x02),
238 },
239 };
240
nokia770_cbus_init(void)241 static void __init nokia770_cbus_init(void)
242 {
243 const int retu_irq_gpio = 62;
244 const int tahvo_irq_gpio = 40;
245
246 if (gpio_request_one(retu_irq_gpio, GPIOF_IN, "Retu IRQ"))
247 return;
248 if (gpio_request_one(tahvo_irq_gpio, GPIOF_IN, "Tahvo IRQ")) {
249 gpio_free(retu_irq_gpio);
250 return;
251 }
252 irq_set_irq_type(gpio_to_irq(retu_irq_gpio), IRQ_TYPE_EDGE_RISING);
253 irq_set_irq_type(gpio_to_irq(tahvo_irq_gpio), IRQ_TYPE_EDGE_RISING);
254 nokia770_i2c_board_info_2[0].irq = gpio_to_irq(retu_irq_gpio);
255 nokia770_i2c_board_info_2[1].irq = gpio_to_irq(tahvo_irq_gpio);
256 i2c_register_board_info(2, nokia770_i2c_board_info_2,
257 ARRAY_SIZE(nokia770_i2c_board_info_2));
258 gpiod_add_lookup_table(&nokia770_cbus_gpio_table);
259 platform_device_register(&nokia770_cbus_device);
260 }
261 #else /* CONFIG_I2C_CBUS_GPIO */
nokia770_cbus_init(void)262 static void __init nokia770_cbus_init(void)
263 {
264 }
265 #endif /* CONFIG_I2C_CBUS_GPIO */
266
omap_nokia770_init(void)267 static void __init omap_nokia770_init(void)
268 {
269 /* On Nokia 770, the SleepX signal is masked with an
270 * MPUIO line by default. It has to be unmasked for it
271 * to become functional */
272
273 /* SleepX mask direction */
274 omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
275 /* Unmask SleepX signal */
276 omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
277
278 platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
279 nokia770_spi_board_info[1].irq = gpio_to_irq(15);
280 spi_register_board_info(nokia770_spi_board_info,
281 ARRAY_SIZE(nokia770_spi_board_info));
282 omap_serial_init();
283 omap_register_i2c_bus(1, 100, NULL, 0);
284 hwa742_dev_init();
285 mipid_dev_init();
286 omap1_usb_init(&nokia770_usb_config);
287 nokia770_mmc_init();
288 nokia770_cbus_init();
289 }
290
291 MACHINE_START(NOKIA770, "Nokia 770")
292 .atag_offset = 0x100,
293 .map_io = omap16xx_map_io,
294 .init_early = omap1_init_early,
295 .init_irq = omap1_init_irq,
296 .handle_irq = omap1_handle_irq,
297 .init_machine = omap_nokia770_init,
298 .init_late = omap1_init_late,
299 .init_time = omap1_timer_init,
300 .restart = omap1_restart,
301 MACHINE_END
302