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
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/mtd/mtd.h>
25#include <linux/mtd/nand.h>
26#include <linux/mtd/partitions.h>
27#include <linux/input.h>
28
29#include <asm/setup.h>
30#include <asm/page.h>
31#include <asm/hardware.h>
32#include <asm/mach-types.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/flash.h>
35#include <asm/mach/map.h>
36
37#include <asm/arch/gpio.h>
38#include <asm/arch/gpioexpander.h>
39#include <asm/arch/irqs.h>
40#include <asm/arch/mux.h>
41#include <asm/arch/tc.h>
42#include <asm/arch/irda.h>
43#include <asm/arch/usb.h>
44#include <asm/arch/keypad.h>
45#include <asm/arch/dma.h>
46#include <asm/arch/common.h>
47
48extern int omap_gpio_init(void);
49
50static int h3_keymap[] = {
51	KEY(0, 0, KEY_LEFT),
52	KEY(0, 1, KEY_RIGHT),
53	KEY(0, 2, KEY_3),
54	KEY(0, 3, KEY_F10),
55	KEY(0, 4, KEY_F5),
56	KEY(0, 5, KEY_9),
57	KEY(1, 0, KEY_DOWN),
58	KEY(1, 1, KEY_UP),
59	KEY(1, 2, KEY_2),
60	KEY(1, 3, KEY_F9),
61	KEY(1, 4, KEY_F7),
62	KEY(1, 5, KEY_0),
63	KEY(2, 0, KEY_ENTER),
64	KEY(2, 1, KEY_6),
65	KEY(2, 2, KEY_1),
66	KEY(2, 3, KEY_F2),
67	KEY(2, 4, KEY_F6),
68	KEY(2, 5, KEY_HOME),
69	KEY(3, 0, KEY_8),
70	KEY(3, 1, KEY_5),
71	KEY(3, 2, KEY_F12),
72	KEY(3, 3, KEY_F3),
73	KEY(3, 4, KEY_F8),
74	KEY(3, 5, KEY_END),
75	KEY(4, 0, KEY_7),
76	KEY(4, 1, KEY_4),
77	KEY(4, 2, KEY_F11),
78	KEY(4, 3, KEY_F1),
79	KEY(4, 4, KEY_F4),
80	KEY(4, 5, KEY_ESC),
81	KEY(5, 0, KEY_F13),
82	KEY(5, 1, KEY_F14),
83	KEY(5, 2, KEY_F15),
84	KEY(5, 3, KEY_F16),
85	KEY(5, 4, KEY_SLEEP),
86	0
87};
88
89
90static struct mtd_partition nor_partitions[] = {
91	/* bootloader (U-Boot, etc) in first sector */
92	{
93	      .name		= "bootloader",
94	      .offset		= 0,
95	      .size		= SZ_128K,
96	      .mask_flags	= MTD_WRITEABLE, /* force read-only */
97	},
98	/* bootloader params in the next sector */
99	{
100	      .name		= "params",
101	      .offset		= MTDPART_OFS_APPEND,
102	      .size		= SZ_128K,
103	      .mask_flags	= 0,
104	},
105	/* kernel */
106	{
107	      .name		= "kernel",
108	      .offset		= MTDPART_OFS_APPEND,
109	      .size		= SZ_2M,
110	      .mask_flags	= 0
111	},
112	/* file system */
113	{
114	      .name		= "filesystem",
115	      .offset		= MTDPART_OFS_APPEND,
116	      .size		= MTDPART_SIZ_FULL,
117	      .mask_flags	= 0
118	}
119};
120
121static struct flash_platform_data nor_data = {
122	.map_name	= "cfi_probe",
123	.width		= 2,
124	.parts		= nor_partitions,
125	.nr_parts	= ARRAY_SIZE(nor_partitions),
126};
127
128static struct resource nor_resource = {
129	/* This is on CS3, wherever it's mapped */
130	.flags		= IORESOURCE_MEM,
131};
132
133static struct platform_device nor_device = {
134	.name		= "omapflash",
135	.id		= 0,
136	.dev		= {
137		.platform_data	= &nor_data,
138	},
139	.num_resources	= 1,
140	.resource	= &nor_resource,
141};
142
143static struct mtd_partition nand_partitions[] = {
144	{
145		.name		= "filesystem",
146		.size		= MTDPART_SIZ_FULL,
147		.offset		= MTDPART_OFS_APPEND,
148	},
149};
150
151/* dip switches control NAND chip access:  8 bit, 16 bit, or neither */
152static struct nand_platform_data nand_data = {
153	.options	= NAND_SAMSUNG_LP_OPTIONS,
154	.parts		= nand_partitions,
155	.nr_parts	= ARRAY_SIZE(nand_partitions),
156};
157
158static struct resource nand_resource = {
159	.flags		= IORESOURCE_MEM,
160};
161
162static struct platform_device nand_device = {
163	.name		= "omapnand",
164	.id		= 0,
165	.dev		= {
166		.platform_data	= &nand_data,
167	},
168	.num_resources	= 1,
169	.resource	= &nand_resource,
170};
171
172static struct resource smc91x_resources[] = {
173	[0] = {
174		.start	= OMAP1710_ETHR_START,		/* Physical */
175		.end	= OMAP1710_ETHR_START + 0xf,
176		.flags	= IORESOURCE_MEM,
177	},
178	[1] = {
179		.start	= OMAP_GPIO_IRQ(40),
180		.end	= OMAP_GPIO_IRQ(40),
181		.flags	= IORESOURCE_IRQ,
182	},
183};
184
185static struct platform_device smc91x_device = {
186	.name		= "smc91x",
187	.id		= 0,
188	.num_resources	= ARRAY_SIZE(smc91x_resources),
189	.resource	= smc91x_resources,
190};
191
192#define GPTIMER_BASE		0xFFFB1400
193#define GPTIMER_REGS(x)	(0xFFFB1400 + (x * 0x800))
194#define GPTIMER_REGS_SIZE	0x46
195
196static struct resource intlat_resources[] = {
197	[0] = {
198		.start  = GPTIMER_REGS(0),	      /* Physical */
199		.end    = GPTIMER_REGS(0) + GPTIMER_REGS_SIZE,
200		.flags  = IORESOURCE_MEM,
201	},
202	[1] = {
203		.start  = INT_1610_GPTIMER1,
204		.end    = INT_1610_GPTIMER1,
205		.flags  = IORESOURCE_IRQ,
206	},
207};
208
209static struct platform_device intlat_device = {
210	.name	   = "omap_intlat",
211	.id	     = 0,
212	.num_resources  = ARRAY_SIZE(intlat_resources),
213	.resource       = intlat_resources,
214};
215
216static struct resource h3_kp_resources[] = {
217	[0] = {
218		.start	= INT_KEYBOARD,
219		.end	= INT_KEYBOARD,
220		.flags	= IORESOURCE_IRQ,
221	},
222};
223
224static struct omap_kp_platform_data h3_kp_data = {
225	.rows		= 8,
226	.cols		= 8,
227	.keymap		= h3_keymap,
228	.keymapsize	= ARRAY_SIZE(h3_keymap),
229	.rep		= 1,
230	.delay		= 9,
231	.dbounce	= 1,
232};
233
234static struct platform_device h3_kp_device = {
235	.name		= "omap-keypad",
236	.id		= -1,
237	.dev		= {
238		.platform_data = &h3_kp_data,
239	},
240	.num_resources	= ARRAY_SIZE(h3_kp_resources),
241	.resource	= h3_kp_resources,
242};
243
244
245/* Select between the IrDA and aGPS module
246 */
247static int h3_select_irda(struct device *dev, int state)
248{
249	unsigned char expa;
250	int err = 0;
251
252	if ((err = read_gpio_expa(&expa, 0x26))) {
253		printk(KERN_ERR "Error reading from I/O EXPANDER \n");
254		return err;
255	}
256
257	/* 'P6' enable/disable IRDA_TX and IRDA_RX */
258	if (state & IR_SEL) { /* IrDA */
259		if ((err = write_gpio_expa(expa | 0x40, 0x26))) {
260			printk(KERN_ERR "Error writing to I/O EXPANDER \n");
261			return err;
262		}
263	} else {
264		if ((err = write_gpio_expa(expa & ~0x40, 0x26))) {
265			printk(KERN_ERR "Error writing to I/O EXPANDER \n");
266			return err;
267		}
268	}
269	return err;
270}
271
272static void set_trans_mode(void *data)
273{
274	int *mode = data;
275	unsigned char expa;
276	int err = 0;
277
278	if ((err = read_gpio_expa(&expa, 0x27)) != 0) {
279		printk(KERN_ERR "Error reading from I/O expander\n");
280	}
281
282	expa &= ~0x03;
283
284	if (*mode & IR_SIRMODE) {
285		expa |= 0x01;
286	} else { /* MIR/FIR */
287		expa |= 0x03;
288	}
289
290	if ((err = write_gpio_expa(expa, 0x27)) != 0) {
291		printk(KERN_ERR "Error writing to I/O expander\n");
292	}
293}
294
295static int h3_transceiver_mode(struct device *dev, int mode)
296{
297	struct omap_irda_config *irda_config = dev->platform_data;
298
299	cancel_delayed_work(&irda_config->gpio_expa);
300	PREPARE_WORK(&irda_config->gpio_expa, set_trans_mode, &mode);
301#error this is not permitted - mode is an argument variable
302	schedule_delayed_work(&irda_config->gpio_expa, 0);
303
304	return 0;
305}
306
307static struct omap_irda_config h3_irda_data = {
308	.transceiver_cap	= IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
309	.transceiver_mode	= h3_transceiver_mode,
310	.select_irda	 	= h3_select_irda,
311	.rx_channel		= OMAP_DMA_UART3_RX,
312	.tx_channel		= OMAP_DMA_UART3_TX,
313	.dest_start		= UART3_THR,
314	.src_start		= UART3_RHR,
315	.tx_trigger		= 0,
316	.rx_trigger		= 0,
317};
318
319static struct resource h3_irda_resources[] = {
320	[0] = {
321		.start	= INT_UART3,
322		.end	= INT_UART3,
323		.flags	= IORESOURCE_IRQ,
324	},
325};
326
327static struct platform_device h3_irda_device = {
328	.name		= "omapirda",
329	.id		= 0,
330	.dev		= {
331		.platform_data	= &h3_irda_data,
332	},
333	.num_resources	= ARRAY_SIZE(h3_irda_resources),
334	.resource	= h3_irda_resources,
335};
336
337static struct platform_device h3_lcd_device = {
338	.name		= "lcd_h3",
339	.id		= -1,
340};
341
342static struct platform_device *devices[] __initdata = {
343	&nor_device,
344	&nand_device,
345        &smc91x_device,
346	&intlat_device,
347	&h3_irda_device,
348	&h3_kp_device,
349	&h3_lcd_device,
350};
351
352static struct omap_usb_config h3_usb_config __initdata = {
353	/* usb1 has a Mini-AB port and external isp1301 transceiver */
354	.otg	    = 2,
355
356#ifdef CONFIG_USB_GADGET_OMAP
357	.hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
358#elif  defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
359	/* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
360	.hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
361#endif
362
363	.pins[1]	= 3,
364};
365
366static struct omap_mmc_config h3_mmc_config __initdata = {
367	.mmc[0] = {
368		.enabled 	= 1,
369		.power_pin	= -1,   /* tps65010 GPIO4 */
370		.switch_pin	= OMAP_MPUIO(1),
371	},
372};
373
374static struct omap_uart_config h3_uart_config __initdata = {
375	.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
376};
377
378static struct omap_lcd_config h3_lcd_config __initdata = {
379	.ctrl_name	= "internal",
380};
381
382static struct omap_board_config_kernel h3_config[] = {
383	{ OMAP_TAG_USB,		&h3_usb_config },
384	{ OMAP_TAG_MMC,		&h3_mmc_config },
385	{ OMAP_TAG_UART,	&h3_uart_config },
386	{ OMAP_TAG_LCD,		&h3_lcd_config },
387};
388
389#define H3_NAND_RB_GPIO_PIN	10
390
391static int nand_dev_ready(struct nand_platform_data *data)
392{
393	return omap_get_gpio_datain(H3_NAND_RB_GPIO_PIN);
394}
395
396static void __init h3_init(void)
397{
398	/* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
399	 * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
400	 * notice whether a NAND chip is enabled at probe time.
401	 *
402	 * H3 support NAND-boot, with a dip switch to put NOR on CS2B and NAND
403	 * (which on H2 may be 16bit) on CS3.  Try detecting that in code here,
404	 * to avoid probing every possible flash configuration...
405	 */
406	nor_resource.end = nor_resource.start = omap_cs3_phys();
407	nor_resource.end += SZ_32M - 1;
408
409	nand_resource.end = nand_resource.start = OMAP_CS2B_PHYS;
410	nand_resource.end += SZ_4K - 1;
411	if (!(omap_request_gpio(H3_NAND_RB_GPIO_PIN)))
412		nand_data.dev_ready = nand_dev_ready;
413
414	/* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
415	/* GPIO10 pullup/down register, Enable pullup on GPIO10 */
416	omap_cfg_reg(V2_1710_GPIO10);
417
418	platform_add_devices(devices, ARRAY_SIZE(devices));
419	omap_board_config = h3_config;
420	omap_board_config_size = ARRAY_SIZE(h3_config);
421	omap_serial_init();
422}
423
424static void __init h3_init_smc91x(void)
425{
426	omap_cfg_reg(W15_1710_GPIO40);
427	if (omap_request_gpio(40) < 0) {
428		printk("Error requesting gpio 40 for smc91x irq\n");
429		return;
430	}
431}
432
433static void __init h3_init_irq(void)
434{
435	omap1_init_common_hw();
436	omap_init_irq();
437	omap_gpio_init();
438	h3_init_smc91x();
439}
440
441static void __init h3_map_io(void)
442{
443	omap1_map_common_io();
444}
445
446MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
447	/* Maintainer: Texas Instruments, Inc. */
448	.phys_io	= 0xfff00000,
449	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
450	.boot_params	= 0x10000100,
451	.map_io		= h3_map_io,
452	.init_irq	= h3_init_irq,
453	.init_machine	= h3_init,
454	.timer		= &omap_timer,
455MACHINE_END
456