1/*
2 * linux/arch/arm/mach-omap2/board-ldp.c
3 *
4 * Copyright (C) 2008 Texas Instruments Inc.
5 * Nishant Kamat <nskamat@ti.com>
6 *
7 * Modified from mach-omap2/board-3430sdp.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13#include <linux/gpio.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/platform_device.h>
17#include <linux/delay.h>
18#include <linux/input.h>
19#include <linux/input/matrix_keypad.h>
20#include <linux/gpio_keys.h>
21#include <linux/workqueue.h>
22#include <linux/err.h>
23#include <linux/clk.h>
24#include <linux/spi/spi.h>
25#include <linux/regulator/fixed.h>
26#include <linux/regulator/machine.h>
27#include <linux/i2c/twl.h>
28#include <linux/io.h>
29#include <linux/smsc911x.h>
30#include <linux/mmc/host.h>
31#include <linux/usb/phy.h>
32#include <linux/platform_data/spi-omap2-mcspi.h>
33
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/map.h>
37
38#include "common.h"
39#include "gpmc.h"
40#include "gpmc-smsc911x.h"
41
42#include <video/omapdss.h>
43#include <video/omap-panel-data.h>
44
45#include "board-flash.h"
46#include "mux.h"
47#include "hsmmc.h"
48#include "control.h"
49#include "common-board-devices.h"
50
51#define LDP_SMSC911X_CS		1
52#define LDP_SMSC911X_GPIO	152
53#define DEBUG_BASE		0x08000000
54#define LDP_ETHR_START		DEBUG_BASE
55
56static uint32_t board_keymap[] = {
57	KEY(0, 0, KEY_1),
58	KEY(1, 0, KEY_2),
59	KEY(2, 0, KEY_3),
60	KEY(0, 1, KEY_4),
61	KEY(1, 1, KEY_5),
62	KEY(2, 1, KEY_6),
63	KEY(3, 1, KEY_F5),
64	KEY(0, 2, KEY_7),
65	KEY(1, 2, KEY_8),
66	KEY(2, 2, KEY_9),
67	KEY(3, 2, KEY_F6),
68	KEY(0, 3, KEY_F7),
69	KEY(1, 3, KEY_0),
70	KEY(2, 3, KEY_F8),
71	PERSISTENT_KEY(4, 5),
72	KEY(4, 4, KEY_VOLUMEUP),
73	KEY(5, 5, KEY_VOLUMEDOWN),
74	0
75};
76
77static struct matrix_keymap_data board_map_data = {
78	.keymap			= board_keymap,
79	.keymap_size		= ARRAY_SIZE(board_keymap),
80};
81
82static struct twl4030_keypad_data ldp_kp_twl4030_data = {
83	.keymap_data	= &board_map_data,
84	.rows		= 6,
85	.cols		= 6,
86	.rep		= 1,
87};
88
89static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
90	[0] = {
91		.code			= KEY_ENTER,
92		.gpio			= 101,
93		.desc			= "enter sw",
94		.active_low		= 1,
95		.debounce_interval	= 30,
96	},
97	[1] = {
98		.code			= KEY_F1,
99		.gpio			= 102,
100		.desc			= "func 1",
101		.active_low		= 1,
102		.debounce_interval	= 30,
103	},
104	[2] = {
105		.code			= KEY_F2,
106		.gpio			= 103,
107		.desc			= "func 2",
108		.active_low		= 1,
109		.debounce_interval	= 30,
110	},
111	[3] = {
112		.code			= KEY_F3,
113		.gpio			= 104,
114		.desc			= "func 3",
115		.active_low		= 1,
116		.debounce_interval 	= 30,
117	},
118	[4] = {
119		.code			= KEY_F4,
120		.gpio			= 105,
121		.desc			= "func 4",
122		.active_low		= 1,
123		.debounce_interval	= 30,
124	},
125	[5] = {
126		.code			= KEY_LEFT,
127		.gpio			= 106,
128		.desc			= "left sw",
129		.active_low		= 1,
130		.debounce_interval	= 30,
131	},
132	[6] = {
133		.code			= KEY_RIGHT,
134		.gpio			= 107,
135		.desc			= "right sw",
136		.active_low		= 1,
137		.debounce_interval	= 30,
138	},
139	[7] = {
140		.code			= KEY_UP,
141		.gpio			= 108,
142		.desc			= "up sw",
143		.active_low		= 1,
144		.debounce_interval	= 30,
145	},
146	[8] = {
147		.code			= KEY_DOWN,
148		.gpio			= 109,
149		.desc			= "down sw",
150		.active_low		= 1,
151		.debounce_interval	= 30,
152	},
153};
154
155static struct gpio_keys_platform_data ldp_gpio_keys = {
156	.buttons		= ldp_gpio_keys_buttons,
157	.nbuttons		= ARRAY_SIZE(ldp_gpio_keys_buttons),
158	.rep			= 1,
159};
160
161static struct platform_device ldp_gpio_keys_device = {
162	.name		= "gpio-keys",
163	.id		= -1,
164	.dev		= {
165		.platform_data	= &ldp_gpio_keys,
166	},
167};
168
169static struct omap_smsc911x_platform_data smsc911x_cfg = {
170	.cs             = LDP_SMSC911X_CS,
171	.gpio_irq       = LDP_SMSC911X_GPIO,
172	.gpio_reset     = -EINVAL,
173	.flags		= SMSC911X_USE_32BIT,
174};
175
176static inline void __init ldp_init_smsc911x(void)
177{
178	gpmc_smsc911x_init(&smsc911x_cfg);
179}
180
181/* LCD */
182
183#define LCD_PANEL_RESET_GPIO		55
184#define LCD_PANEL_QVGA_GPIO		56
185
186static const struct display_timing ldp_lcd_videomode = {
187	.pixelclock	= { 0, 5400000, 0 },
188
189	.hactive = { 0, 240, 0 },
190	.hfront_porch = { 0, 3, 0 },
191	.hback_porch = { 0, 39, 0 },
192	.hsync_len = { 0, 3, 0 },
193
194	.vactive = { 0, 320, 0 },
195	.vfront_porch = { 0, 2, 0 },
196	.vback_porch = { 0, 7, 0 },
197	.vsync_len = { 0, 1, 0 },
198
199	.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
200		DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
201};
202
203static struct panel_dpi_platform_data ldp_lcd_pdata = {
204	.name                   = "lcd",
205	.source                 = "dpi.0",
206
207	.data_lines		= 18,
208
209	.display_timing		= &ldp_lcd_videomode,
210
211	.enable_gpio		= -1,	/* filled in code */
212	.backlight_gpio		= -1,	/* filled in code */
213};
214
215static struct platform_device ldp_lcd_device = {
216	.name                   = "panel-dpi",
217	.id                     = 0,
218	.dev.platform_data      = &ldp_lcd_pdata,
219};
220
221static struct omap_dss_board_info ldp_dss_data = {
222	.default_display_name = "lcd",
223};
224
225static void __init ldp_display_init(void)
226{
227	int r;
228
229	static struct gpio gpios[] __initdata = {
230		{LCD_PANEL_RESET_GPIO, GPIOF_OUT_INIT_HIGH, "LCD RESET"},
231		{LCD_PANEL_QVGA_GPIO, GPIOF_OUT_INIT_HIGH, "LCD QVGA"},
232	};
233
234	r = gpio_request_array(gpios, ARRAY_SIZE(gpios));
235	if (r) {
236		pr_err("Cannot request LCD GPIOs, error %d\n", r);
237		return;
238	}
239
240	omap_display_init(&ldp_dss_data);
241}
242
243static int ldp_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio)
244{
245	int res;
246
247	/* LCD enable GPIO */
248	ldp_lcd_pdata.enable_gpio = gpio + 7;
249
250	/* Backlight enable GPIO */
251	ldp_lcd_pdata.backlight_gpio = gpio + 15;
252
253	res = platform_device_register(&ldp_lcd_device);
254	if (res)
255		pr_err("Unable to register LCD: %d\n", res);
256
257	return 0;
258}
259
260static struct twl4030_gpio_platform_data ldp_gpio_data = {
261	.setup		= ldp_twl_gpio_setup,
262};
263
264static struct regulator_consumer_supply ldp_vmmc1_supply[] = {
265	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
266};
267
268/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
269static struct regulator_init_data ldp_vmmc1 = {
270	.constraints = {
271		.min_uV			= 1850000,
272		.max_uV			= 3150000,
273		.valid_modes_mask	= REGULATOR_MODE_NORMAL
274					| REGULATOR_MODE_STANDBY,
275		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
276					| REGULATOR_CHANGE_MODE
277					| REGULATOR_CHANGE_STATUS,
278	},
279	.num_consumer_supplies	= ARRAY_SIZE(ldp_vmmc1_supply),
280	.consumer_supplies	= ldp_vmmc1_supply,
281};
282
283/* ads7846 on SPI */
284static struct regulator_consumer_supply ldp_vaux1_supplies[] = {
285	REGULATOR_SUPPLY("vcc", "spi1.0"),
286};
287
288/* VAUX1 */
289static struct regulator_init_data ldp_vaux1 = {
290	.constraints = {
291		.min_uV			= 3000000,
292		.max_uV			= 3000000,
293		.apply_uV		= true,
294		.valid_modes_mask	= REGULATOR_MODE_NORMAL
295					| REGULATOR_MODE_STANDBY,
296		.valid_ops_mask		= REGULATOR_CHANGE_MODE
297					| REGULATOR_CHANGE_STATUS,
298	},
299	.num_consumer_supplies		= ARRAY_SIZE(ldp_vaux1_supplies),
300	.consumer_supplies		= ldp_vaux1_supplies,
301};
302
303static struct regulator_consumer_supply ldp_vpll2_supplies[] = {
304	REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
305	REGULATOR_SUPPLY("vdds_dsi", "omapdss_dpi.0"),
306	REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi.0"),
307};
308
309static struct regulator_init_data ldp_vpll2 = {
310	.constraints = {
311		.name			= "VDVI",
312		.min_uV			= 1800000,
313		.max_uV			= 1800000,
314		.apply_uV		= true,
315		.valid_modes_mask	= REGULATOR_MODE_NORMAL
316					| REGULATOR_MODE_STANDBY,
317		.valid_ops_mask		= REGULATOR_CHANGE_MODE
318					| REGULATOR_CHANGE_STATUS,
319	},
320	.num_consumer_supplies	= ARRAY_SIZE(ldp_vpll2_supplies),
321	.consumer_supplies	= ldp_vpll2_supplies,
322};
323
324static struct twl4030_platform_data ldp_twldata = {
325	/* platform_data for children goes here */
326	.vmmc1		= &ldp_vmmc1,
327	.vaux1		= &ldp_vaux1,
328	.vpll2		= &ldp_vpll2,
329	.gpio		= &ldp_gpio_data,
330	.keypad		= &ldp_kp_twl4030_data,
331};
332
333static int __init omap_i2c_init(void)
334{
335	omap3_pmic_get_config(&ldp_twldata,
336			  TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC, 0);
337	omap3_pmic_init("twl4030", &ldp_twldata);
338	omap_register_i2c_bus(2, 400, NULL, 0);
339	omap_register_i2c_bus(3, 400, NULL, 0);
340	return 0;
341}
342
343static struct omap2_hsmmc_info mmc[] __initdata = {
344	{
345		.mmc		= 1,
346		.caps		= MMC_CAP_4_BIT_DATA,
347		.gpio_cd	= -EINVAL,
348		.gpio_wp	= -EINVAL,
349	},
350	{}	/* Terminator */
351};
352
353static struct platform_device *ldp_devices[] __initdata = {
354	&ldp_gpio_keys_device,
355};
356
357#ifdef CONFIG_OMAP_MUX
358static struct omap_board_mux board_mux[] __initdata = {
359	{ .reg_offset = OMAP_MUX_TERMINATOR },
360};
361#endif
362
363static struct mtd_partition ldp_nand_partitions[] = {
364	/* All the partition sizes are listed in terms of NAND block size */
365	{
366		.name		= "X-Loader-NAND",
367		.offset		= 0,
368		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
369		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
370	},
371	{
372		.name		= "U-Boot-NAND",
373		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
374		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
375		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
376	},
377	{
378		.name		= "Boot Env-NAND",
379		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
380		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
381	},
382	{
383		.name		= "Kernel-NAND",
384		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
385		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
386	},
387	{
388		.name		= "File System - NAND",
389		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
390		.size		= MTDPART_SIZ_FULL,	/* 96MB, 0x6000000 */
391	},
392
393};
394
395static struct regulator_consumer_supply dummy_supplies[] = {
396	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
397	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
398};
399
400static void __init omap_ldp_init(void)
401{
402	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
403	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
404	ldp_init_smsc911x();
405	omap_i2c_init();
406	platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
407	omap_ads7846_init(1, 54, 310, NULL);
408	omap_serial_init();
409	omap_sdrc_init(NULL, NULL);
410	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
411	usb_musb_init(NULL);
412	board_nand_init(ldp_nand_partitions, ARRAY_SIZE(ldp_nand_partitions),
413			0, 0, nand_default_timings);
414
415	omap_hsmmc_init(mmc);
416	ldp_display_init();
417}
418
419MACHINE_START(OMAP_LDP, "OMAP LDP board")
420	.atag_offset	= 0x100,
421	.reserve	= omap_reserve,
422	.map_io		= omap3_map_io,
423	.init_early	= omap3430_init_early,
424	.init_irq	= omap3_init_irq,
425	.init_machine	= omap_ldp_init,
426	.init_late	= omap3430_init_late,
427	.init_time	= omap3_sync32k_timer_init,
428	.restart	= omap3xxx_restart,
429MACHINE_END
430