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
42static 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
56static struct resource nokia770_kp_resources[] = {
57	[0] = {
58		.start	= INT_KEYBOARD,
59		.end	= INT_KEYBOARD,
60		.flags	= IORESOURCE_IRQ,
61	},
62};
63
64static const struct matrix_keymap_data nokia770_keymap_data = {
65	.keymap		= nokia770_keymap,
66	.keymap_size	= ARRAY_SIZE(nokia770_keymap),
67};
68
69static 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
76static 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
86static struct platform_device *nokia770_devices[] __initdata = {
87	&nokia770_kp_device,
88};
89
90static 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
99static struct mipid_platform_data nokia770_mipid_platform_data = {
100	.shutdown = mipid_shutdown,
101};
102
103static const struct omap_lcd_config nokia770_lcd_config __initconst = {
104	.ctrl_name	= "hwa742",
105};
106
107static 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
115static 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
126static 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
143static 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
150static 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
164static 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
171static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
172{
173	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
174}
175
176static 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
187static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];
188
189static 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
211static inline void nokia770_mmc_init(void)
212{
213}
214#endif
215
216#if IS_ENABLED(CONFIG_I2C_CBUS_GPIO)
217static 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
227static struct platform_device nokia770_cbus_device = {
228	.name   = "i2c-cbus-gpio",
229	.id     = 2,
230};
231
232static 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
241static 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 */
262static void __init nokia770_cbus_init(void)
263{
264}
265#endif /* CONFIG_I2C_CBUS_GPIO */
266
267static 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
291MACHINE_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,
301MACHINE_END
302