1 /*
2  * linux/arch/arm/mach-omap1/board-h3.c
3  *
4  * This file contains OMAP1710 H3 specific code.
5  *
6  * Copyright (C) 2004 Texas Instruments, Inc.
7  * Copyright (C) 2002 MontaVista Software, Inc.
8  * Copyright (C) 2001 RidgeRun, Inc.
9  * Author: RidgeRun, Inc.
10  *         Greg Lonnon (glonnon@ridgerun.com) or info@ridgerun.com
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2 as
14  * published by the Free Software Foundation.
15  */
16 #include <linux/gpio.h>
17 #include <linux/types.h>
18 #include <linux/init.h>
19 #include <linux/major.h>
20 #include <linux/kernel.h>
21 #include <linux/platform_device.h>
22 #include <linux/errno.h>
23 #include <linux/workqueue.h>
24 #include <linux/i2c.h>
25 #include <linux/mtd/mtd.h>
26 #include <linux/mtd/nand.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/mtd/physmap.h>
29 #include <linux/input.h>
30 #include <linux/spi/spi.h>
31 #include <linux/i2c/tps65010.h>
32 #include <linux/smc91x.h>
33 
34 #include <asm/setup.h>
35 #include <asm/page.h>
36 #include <mach/hardware.h>
37 
38 #include <asm/mach-types.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 
42 #include <mach/irqs.h>
43 #include <plat/mux.h>
44 #include <plat/tc.h>
45 #include <plat/usb.h>
46 #include <plat/keypad.h>
47 #include <plat/dma.h>
48 #include "common.h"
49 #include <plat/flash.h>
50 
51 #include "board-h3.h"
52 
53 /* In OMAP1710 H3 the Ethernet is directly connected to CS1 */
54 #define OMAP1710_ETHR_START		0x04000300
55 
56 #define H3_TS_GPIO	48
57 
58 static const unsigned int h3_keymap[] = {
59 	KEY(0, 0, KEY_LEFT),
60 	KEY(1, 0, KEY_RIGHT),
61 	KEY(2, 0, KEY_3),
62 	KEY(3, 0, KEY_F10),
63 	KEY(4, 0, KEY_F5),
64 	KEY(5, 0, KEY_9),
65 	KEY(0, 1, KEY_DOWN),
66 	KEY(1, 1, KEY_UP),
67 	KEY(2, 1, KEY_2),
68 	KEY(3, 1, KEY_F9),
69 	KEY(4, 1, KEY_F7),
70 	KEY(5, 1, KEY_0),
71 	KEY(0, 2, KEY_ENTER),
72 	KEY(1, 2, KEY_6),
73 	KEY(2, 2, KEY_1),
74 	KEY(3, 2, KEY_F2),
75 	KEY(4, 2, KEY_F6),
76 	KEY(5, 2, KEY_HOME),
77 	KEY(0, 3, KEY_8),
78 	KEY(1, 3, KEY_5),
79 	KEY(2, 3, KEY_F12),
80 	KEY(3, 3, KEY_F3),
81 	KEY(4, 3, KEY_F8),
82 	KEY(5, 3, KEY_END),
83 	KEY(0, 4, KEY_7),
84 	KEY(1, 4, KEY_4),
85 	KEY(2, 4, KEY_F11),
86 	KEY(3, 4, KEY_F1),
87 	KEY(4, 4, KEY_F4),
88 	KEY(5, 4, KEY_ESC),
89 	KEY(0, 5, KEY_F13),
90 	KEY(1, 5, KEY_F14),
91 	KEY(2, 5, KEY_F15),
92 	KEY(3, 5, KEY_F16),
93 	KEY(4, 5, KEY_SLEEP),
94 };
95 
96 
97 static struct mtd_partition nor_partitions[] = {
98 	/* bootloader (U-Boot, etc) in first sector */
99 	{
100 	      .name		= "bootloader",
101 	      .offset		= 0,
102 	      .size		= SZ_128K,
103 	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
104 	},
105 	/* bootloader params in the next sector */
106 	{
107 	      .name		= "params",
108 	      .offset		= MTDPART_OFS_APPEND,
109 	      .size		= SZ_128K,
110 	      .mask_flags	= 0,
111 	},
112 	/* kernel */
113 	{
114 	      .name		= "kernel",
115 	      .offset		= MTDPART_OFS_APPEND,
116 	      .size		= SZ_2M,
117 	      .mask_flags	= 0
118 	},
119 	/* file system */
120 	{
121 	      .name		= "filesystem",
122 	      .offset		= MTDPART_OFS_APPEND,
123 	      .size		= MTDPART_SIZ_FULL,
124 	      .mask_flags	= 0
125 	}
126 };
127 
128 static struct physmap_flash_data nor_data = {
129 	.width		= 2,
130 	.set_vpp	= omap1_set_vpp,
131 	.parts		= nor_partitions,
132 	.nr_parts	= ARRAY_SIZE(nor_partitions),
133 };
134 
135 static struct resource nor_resource = {
136 	/* This is on CS3, wherever it's mapped */
137 	.flags		= IORESOURCE_MEM,
138 };
139 
140 static struct platform_device nor_device = {
141 	.name		= "physmap-flash",
142 	.id		= 0,
143 	.dev		= {
144 		.platform_data	= &nor_data,
145 	},
146 	.num_resources	= 1,
147 	.resource	= &nor_resource,
148 };
149 
150 static struct mtd_partition nand_partitions[] = {
151 #if 0
152 	/* REVISIT: enable these partitions if you make NAND BOOT work */
153 	{
154 		.name		= "xloader",
155 		.offset		= 0,
156 		.size		= 64 * 1024,
157 		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
158 	},
159 	{
160 		.name		= "bootloader",
161 		.offset		= MTDPART_OFS_APPEND,
162 		.size		= 256 * 1024,
163 		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
164 	},
165 	{
166 		.name		= "params",
167 		.offset		= MTDPART_OFS_APPEND,
168 		.size		= 192 * 1024,
169 	},
170 	{
171 		.name		= "kernel",
172 		.offset		= MTDPART_OFS_APPEND,
173 		.size		= 2 * SZ_1M,
174 	},
175 #endif
176 	{
177 		.name		= "filesystem",
178 		.size		= MTDPART_SIZ_FULL,
179 		.offset		= MTDPART_OFS_APPEND,
180 	},
181 };
182 
nand_cmd_ctl(struct mtd_info * mtd,int cmd,unsigned int ctrl)183 static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
184 {
185 	struct nand_chip *this = mtd->priv;
186 	unsigned long mask;
187 
188 	if (cmd == NAND_CMD_NONE)
189 		return;
190 
191 	mask = (ctrl & NAND_CLE) ? 0x02 : 0;
192 	if (ctrl & NAND_ALE)
193 		mask |= 0x04;
194 	writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
195 }
196 
197 #define H3_NAND_RB_GPIO_PIN	10
198 
nand_dev_ready(struct mtd_info * mtd)199 static int nand_dev_ready(struct mtd_info *mtd)
200 {
201 	return gpio_get_value(H3_NAND_RB_GPIO_PIN);
202 }
203 
204 static const char *part_probes[] = { "cmdlinepart", NULL };
205 
206 static struct platform_nand_data nand_platdata = {
207 	.chip	= {
208 		.nr_chips		= 1,
209 		.chip_offset		= 0,
210 		.nr_partitions		= ARRAY_SIZE(nand_partitions),
211 		.partitions		= nand_partitions,
212 		.options		= NAND_SAMSUNG_LP_OPTIONS,
213 		.part_probe_types	= part_probes,
214 	},
215 	.ctrl	= {
216 		.cmd_ctrl	= nand_cmd_ctl,
217 		.dev_ready	= nand_dev_ready,
218 
219 	},
220 };
221 
222 static struct resource nand_resource = {
223 	.flags		= IORESOURCE_MEM,
224 };
225 
226 static struct platform_device nand_device = {
227 	.name		= "gen_nand",
228 	.id		= 0,
229 	.dev		= {
230 		.platform_data	= &nand_platdata,
231 	},
232 	.num_resources	= 1,
233 	.resource	= &nand_resource,
234 };
235 
236 static struct smc91x_platdata smc91x_info = {
237 	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT,
238 	.leda	= RPC_LED_100_10,
239 	.ledb	= RPC_LED_TX_RX,
240 };
241 
242 static struct resource smc91x_resources[] = {
243 	[0] = {
244 		.start	= OMAP1710_ETHR_START,		/* Physical */
245 		.end	= OMAP1710_ETHR_START + 0xf,
246 		.flags	= IORESOURCE_MEM,
247 	},
248 	[1] = {
249 		.start	= OMAP_GPIO_IRQ(40),
250 		.end	= OMAP_GPIO_IRQ(40),
251 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
252 	},
253 };
254 
255 static struct platform_device smc91x_device = {
256 	.name		= "smc91x",
257 	.id		= 0,
258 	.dev	= {
259 		.platform_data	= &smc91x_info,
260 	},
261 	.num_resources	= ARRAY_SIZE(smc91x_resources),
262 	.resource	= smc91x_resources,
263 };
264 
h3_init_smc91x(void)265 static void __init h3_init_smc91x(void)
266 {
267 	omap_cfg_reg(W15_1710_GPIO40);
268 	if (gpio_request(40, "SMC91x irq") < 0) {
269 		printk("Error requesting gpio 40 for smc91x irq\n");
270 		return;
271 	}
272 }
273 
274 #define GPTIMER_BASE		0xFFFB1400
275 #define GPTIMER_REGS(x)	(0xFFFB1400 + (x * 0x800))
276 #define GPTIMER_REGS_SIZE	0x46
277 
278 static struct resource intlat_resources[] = {
279 	[0] = {
280 		.start  = GPTIMER_REGS(0),	      /* Physical */
281 		.end    = GPTIMER_REGS(0) + GPTIMER_REGS_SIZE,
282 		.flags  = IORESOURCE_MEM,
283 	},
284 	[1] = {
285 		.start  = INT_1610_GPTIMER1,
286 		.end    = INT_1610_GPTIMER1,
287 		.flags  = IORESOURCE_IRQ,
288 	},
289 };
290 
291 static struct platform_device intlat_device = {
292 	.name	   = "omap_intlat",
293 	.id	     = 0,
294 	.num_resources  = ARRAY_SIZE(intlat_resources),
295 	.resource       = intlat_resources,
296 };
297 
298 static struct resource h3_kp_resources[] = {
299 	[0] = {
300 		.start	= INT_KEYBOARD,
301 		.end	= INT_KEYBOARD,
302 		.flags	= IORESOURCE_IRQ,
303 	},
304 };
305 
306 static const struct matrix_keymap_data h3_keymap_data = {
307 	.keymap		= h3_keymap,
308 	.keymap_size	= ARRAY_SIZE(h3_keymap),
309 };
310 
311 static struct omap_kp_platform_data h3_kp_data = {
312 	.rows		= 8,
313 	.cols		= 8,
314 	.keymap_data	= &h3_keymap_data,
315 	.rep		= true,
316 	.delay		= 9,
317 	.dbounce	= true,
318 };
319 
320 static struct platform_device h3_kp_device = {
321 	.name		= "omap-keypad",
322 	.id		= -1,
323 	.dev		= {
324 		.platform_data = &h3_kp_data,
325 	},
326 	.num_resources	= ARRAY_SIZE(h3_kp_resources),
327 	.resource	= h3_kp_resources,
328 };
329 
330 static struct platform_device h3_lcd_device = {
331 	.name		= "lcd_h3",
332 	.id		= -1,
333 };
334 
335 static struct spi_board_info h3_spi_board_info[] __initdata = {
336 	[0] = {
337 		.modalias	= "tsc2101",
338 		.bus_num	= 2,
339 		.chip_select	= 0,
340 		.irq		= OMAP_GPIO_IRQ(H3_TS_GPIO),
341 		.max_speed_hz	= 16000000,
342 		/* .platform_data	= &tsc_platform_data, */
343 	},
344 };
345 
346 static struct platform_device *devices[] __initdata = {
347 	&nor_device,
348 	&nand_device,
349         &smc91x_device,
350 	&intlat_device,
351 	&h3_kp_device,
352 	&h3_lcd_device,
353 };
354 
355 static struct omap_usb_config h3_usb_config __initdata = {
356 	/* usb1 has a Mini-AB port and external isp1301 transceiver */
357 	.otg	    = 2,
358 
359 #ifdef CONFIG_USB_GADGET_OMAP
360 	.hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
361 #elif  defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
362 	/* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
363 	.hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
364 #endif
365 
366 	.pins[1]	= 3,
367 };
368 
369 static struct omap_lcd_config h3_lcd_config __initdata = {
370 	.ctrl_name	= "internal",
371 };
372 
373 static struct omap_board_config_kernel h3_config[] __initdata = {
374 	{ OMAP_TAG_LCD,		&h3_lcd_config },
375 };
376 
377 static struct i2c_board_info __initdata h3_i2c_board_info[] = {
378        {
379 		I2C_BOARD_INFO("tps65013", 0x48),
380                /* .irq         = OMAP_GPIO_IRQ(??), */
381        },
382 	{
383 		I2C_BOARD_INFO("isp1301_omap", 0x2d),
384 		.irq		= OMAP_GPIO_IRQ(14),
385 	},
386 };
387 
h3_init(void)388 static void __init h3_init(void)
389 {
390 	h3_init_smc91x();
391 
392 	/* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
393 	 * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
394 	 * notice whether a NAND chip is enabled at probe time.
395 	 *
396 	 * H3 support NAND-boot, with a dip switch to put NOR on CS2B and NAND
397 	 * (which on H2 may be 16bit) on CS3.  Try detecting that in code here,
398 	 * to avoid probing every possible flash configuration...
399 	 */
400 	nor_resource.end = nor_resource.start = omap_cs3_phys();
401 	nor_resource.end += SZ_32M - 1;
402 
403 	nand_resource.end = nand_resource.start = OMAP_CS2B_PHYS;
404 	nand_resource.end += SZ_4K - 1;
405 	if (gpio_request(H3_NAND_RB_GPIO_PIN, "NAND ready") < 0)
406 		BUG();
407 	gpio_direction_input(H3_NAND_RB_GPIO_PIN);
408 
409 	/* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
410 	/* GPIO10 pullup/down register, Enable pullup on GPIO10 */
411 	omap_cfg_reg(V2_1710_GPIO10);
412 
413 	/* Mux pins for keypad */
414 	omap_cfg_reg(F18_1610_KBC0);
415 	omap_cfg_reg(D20_1610_KBC1);
416 	omap_cfg_reg(D19_1610_KBC2);
417 	omap_cfg_reg(E18_1610_KBC3);
418 	omap_cfg_reg(C21_1610_KBC4);
419 	omap_cfg_reg(G18_1610_KBR0);
420 	omap_cfg_reg(F19_1610_KBR1);
421 	omap_cfg_reg(H14_1610_KBR2);
422 	omap_cfg_reg(E20_1610_KBR3);
423 	omap_cfg_reg(E19_1610_KBR4);
424 	omap_cfg_reg(N19_1610_KBR5);
425 
426 	platform_add_devices(devices, ARRAY_SIZE(devices));
427 	spi_register_board_info(h3_spi_board_info,
428 				ARRAY_SIZE(h3_spi_board_info));
429 	omap_board_config = h3_config;
430 	omap_board_config_size = ARRAY_SIZE(h3_config);
431 	omap_serial_init();
432 	omap_register_i2c_bus(1, 100, h3_i2c_board_info,
433 			      ARRAY_SIZE(h3_i2c_board_info));
434 	omap1_usb_init(&h3_usb_config);
435 	h3_mmc_init();
436 }
437 
438 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
439 	/* Maintainer: Texas Instruments, Inc. */
440 	.atag_offset	= 0x100,
441 	.map_io		= omap16xx_map_io,
442 	.init_early     = omap1_init_early,
443 	.reserve	= omap_reserve,
444 	.init_irq	= omap1_init_irq,
445 	.init_machine	= h3_init,
446 	.timer		= &omap1_timer,
447 	.restart	= omap1_restart,
448 MACHINE_END
449