Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-2.6] / arch / arm / mach-omap2 / board-h4.c
1 /*
2  * linux/arch/arm/mach-omap2/board-h4.c
3  *
4  * Copyright (C) 2005 Nokia Corporation
5  * Author: Paul Mundt <paul.mundt@nokia.com>
6  *
7  * Modified from mach-omap/omap1/board-generic.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
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/delay.h>
20 #include <linux/workqueue.h>
21 #include <linux/input.h>
22
23 #include <asm/hardware.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/flash.h>
28
29 #include <asm/arch/gpio.h>
30 #include <asm/arch/gpioexpander.h>
31 #include <asm/arch/mux.h>
32 #include <asm/arch/usb.h>
33 #include <asm/arch/irda.h>
34 #include <asm/arch/board.h>
35 #include <asm/arch/common.h>
36 #include <asm/arch/keypad.h>
37 #include <asm/arch/menelaus.h>
38 #include <asm/arch/dma.h>
39 #include "prcm-regs.h"
40
41 #include <asm/io.h>
42
43 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
44 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
45
46 static int h4_keymap[] = {
47         KEY(0, 0, KEY_LEFT),
48         KEY(0, 1, KEY_RIGHT),
49         KEY(0, 2, KEY_A),
50         KEY(0, 3, KEY_B),
51         KEY(0, 4, KEY_C),
52         KEY(1, 0, KEY_DOWN),
53         KEY(1, 1, KEY_UP),
54         KEY(1, 2, KEY_E),
55         KEY(1, 3, KEY_F),
56         KEY(1, 4, KEY_G),
57         KEY(2, 0, KEY_ENTER),
58         KEY(2, 1, KEY_I),
59         KEY(2, 2, KEY_J),
60         KEY(2, 3, KEY_K),
61         KEY(2, 4, KEY_3),
62         KEY(3, 0, KEY_M),
63         KEY(3, 1, KEY_N),
64         KEY(3, 2, KEY_O),
65         KEY(3, 3, KEY_P),
66         KEY(3, 4, KEY_Q),
67         KEY(4, 0, KEY_R),
68         KEY(4, 1, KEY_4),
69         KEY(4, 2, KEY_T),
70         KEY(4, 3, KEY_U),
71         KEY(4, 4, KEY_ENTER),
72         KEY(5, 0, KEY_V),
73         KEY(5, 1, KEY_W),
74         KEY(5, 2, KEY_L),
75         KEY(5, 3, KEY_S),
76         KEY(5, 4, KEY_ENTER),
77         0
78 };
79
80 static struct mtd_partition h4_partitions[] = {
81         /* bootloader (U-Boot, etc) in first sector */
82         {
83               .name             = "bootloader",
84               .offset           = 0,
85               .size             = SZ_128K,
86               .mask_flags       = MTD_WRITEABLE, /* force read-only */
87         },
88         /* bootloader params in the next sector */
89         {
90               .name             = "params",
91               .offset           = MTDPART_OFS_APPEND,
92               .size             = SZ_128K,
93               .mask_flags       = 0,
94         },
95         /* kernel */
96         {
97               .name             = "kernel",
98               .offset           = MTDPART_OFS_APPEND,
99               .size             = SZ_2M,
100               .mask_flags       = 0
101         },
102         /* file system */
103         {
104               .name             = "filesystem",
105               .offset           = MTDPART_OFS_APPEND,
106               .size             = MTDPART_SIZ_FULL,
107               .mask_flags       = 0
108         }
109 };
110
111 static struct flash_platform_data h4_flash_data = {
112         .map_name       = "cfi_probe",
113         .width          = 2,
114         .parts          = h4_partitions,
115         .nr_parts       = ARRAY_SIZE(h4_partitions),
116 };
117
118 static struct resource h4_flash_resource = {
119         .start          = H4_CS0_BASE,
120         .end            = H4_CS0_BASE + SZ_64M - 1,
121         .flags          = IORESOURCE_MEM,
122 };
123
124 static struct platform_device h4_flash_device = {
125         .name           = "omapflash",
126         .id             = 0,
127         .dev            = {
128                 .platform_data  = &h4_flash_data,
129         },
130         .num_resources  = 1,
131         .resource       = &h4_flash_resource,
132 };
133
134 static struct resource h4_smc91x_resources[] = {
135         [0] = {
136                 .start  = OMAP24XX_ETHR_START,          /* Physical */
137                 .end    = OMAP24XX_ETHR_START + 0xf,
138                 .flags  = IORESOURCE_MEM,
139         },
140         [1] = {
141                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
142                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
143                 .flags  = IORESOURCE_IRQ,
144         },
145 };
146
147 static struct platform_device h4_smc91x_device = {
148         .name           = "smc91x",
149         .id             = -1,
150         .num_resources  = ARRAY_SIZE(h4_smc91x_resources),
151         .resource       = h4_smc91x_resources,
152 };
153
154 /* Select between the IrDA and aGPS module
155  */
156 static int h4_select_irda(struct device *dev, int state)
157 {
158         unsigned char expa;
159         int err = 0;
160
161         if ((err = read_gpio_expa(&expa, 0x21))) {
162                 printk(KERN_ERR "Error reading from I/O expander\n");
163                 return err;
164         }
165
166         /* 'P6' enable/disable IRDA_TX and IRDA_RX */
167         if (state & IR_SEL) {   /* IrDa */
168                 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
169                         printk(KERN_ERR "Error writing to I/O expander\n");
170                         return err;
171                 }
172         } else {
173                 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
174                         printk(KERN_ERR "Error writing to I/O expander\n");
175                         return err;
176                 }
177         }
178         return err;
179 }
180
181 static void set_trans_mode(struct work_struct *work)
182 {
183         struct omap_irda_config *irda_config =
184                 container_of(work, struct omap_irda_config, gpio_expa.work);
185         int mode = irda_config->mode;
186         unsigned char expa;
187         int err = 0;
188
189         if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
190                 printk(KERN_ERR "Error reading from I/O expander\n");
191         }
192
193         expa &= ~0x01;
194
195         if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
196                 expa |= 0x01;
197         }
198
199         if ((err = write_gpio_expa(expa, 0x20)) != 0) {
200                 printk(KERN_ERR "Error writing to I/O expander\n");
201         }
202 }
203
204 static int h4_transceiver_mode(struct device *dev, int mode)
205 {
206         struct omap_irda_config *irda_config = dev->platform_data;
207
208         irda_config->mode = mode;
209         cancel_delayed_work(&irda_config->gpio_expa);
210         PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
211         schedule_delayed_work(&irda_config->gpio_expa, 0);
212
213         return 0;
214 }
215
216 static struct omap_irda_config h4_irda_data = {
217         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
218         .transceiver_mode       = h4_transceiver_mode,
219         .select_irda            = h4_select_irda,
220         .rx_channel             = OMAP24XX_DMA_UART3_RX,
221         .tx_channel             = OMAP24XX_DMA_UART3_TX,
222         .dest_start             = OMAP_UART3_BASE,
223         .src_start              = OMAP_UART3_BASE,
224         .tx_trigger             = OMAP24XX_DMA_UART3_TX,
225         .rx_trigger             = OMAP24XX_DMA_UART3_RX,
226 };
227
228 static struct resource h4_irda_resources[] = {
229         [0] = {
230                 .start  = INT_24XX_UART3_IRQ,
231                 .end    = INT_24XX_UART3_IRQ,
232                 .flags  = IORESOURCE_IRQ,
233         },
234 };
235
236 static struct platform_device h4_irda_device = {
237         .name           = "omapirda",
238         .id             = -1,
239         .dev            = {
240                 .platform_data  = &h4_irda_data,
241         },
242         .num_resources  = 1,
243         .resource       = h4_irda_resources,
244 };
245
246 static struct omap_kp_platform_data h4_kp_data = {
247         .rows           = 6,
248         .cols           = 7,
249         .keymap         = h4_keymap,
250         .keymapsize     = ARRAY_SIZE(h4_keymap),
251         .rep            = 1,
252         .row_gpios      = row_gpios,
253         .col_gpios      = col_gpios,
254 };
255
256 static struct platform_device h4_kp_device = {
257         .name           = "omap-keypad",
258         .id             = -1,
259         .dev            = {
260                 .platform_data = &h4_kp_data,
261         },
262 };
263
264 static struct platform_device h4_lcd_device = {
265         .name           = "lcd_h4",
266         .id             = -1,
267 };
268
269 static struct resource h4_led_resources[] = {
270         [0] = {
271                 .flags  = IORESOURCE_MEM,
272         },
273 };
274
275 static struct platform_device h4_led_device = {
276         .name           = "omap_dbg_led",
277         .id             = -1,
278         .num_resources  = ARRAY_SIZE(h4_led_resources),
279         .resource       = h4_led_resources,
280 };
281
282 static struct platform_device *h4_devices[] __initdata = {
283         &h4_smc91x_device,
284         &h4_flash_device,
285         &h4_irda_device,
286         &h4_kp_device,
287         &h4_lcd_device,
288         &h4_led_device,
289 };
290
291 static inline void __init h4_init_smc91x(void)
292 {
293         /* Make sure CS1 timings are correct */
294         GPMC_CONFIG1_1 = 0x00011200;
295         GPMC_CONFIG2_1 = 0x001f1f01;
296         GPMC_CONFIG3_1 = 0x00080803;
297         GPMC_CONFIG4_1 = 0x1c091c09;
298         GPMC_CONFIG5_1 = 0x041f1f1f;
299         GPMC_CONFIG6_1 = 0x000004c4;
300         GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
301         udelay(100);
302
303         omap_cfg_reg(M15_24XX_GPIO92);
304         if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
305                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
306                         OMAP24XX_ETHR_GPIO_IRQ);
307                 return;
308         }
309         omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
310 }
311
312 static void __init omap_h4_init_irq(void)
313 {
314         omap2_init_common_hw();
315         omap_init_irq();
316         omap_gpio_init();
317         h4_init_smc91x();
318 }
319
320 static struct omap_uart_config h4_uart_config __initdata = {
321         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
322 };
323
324 static struct omap_mmc_config h4_mmc_config __initdata = {
325         .mmc [0] = {
326                 .enabled        = 1,
327                 .wire4          = 1,
328                 .wp_pin         = -1,
329                 .power_pin      = -1,
330                 .switch_pin     = -1,
331         },
332 };
333
334 static struct omap_lcd_config h4_lcd_config __initdata = {
335         .ctrl_name      = "internal",
336 };
337
338 static struct omap_board_config_kernel h4_config[] = {
339         { OMAP_TAG_UART,        &h4_uart_config },
340         { OMAP_TAG_MMC,         &h4_mmc_config },
341         { OMAP_TAG_LCD,         &h4_lcd_config },
342 };
343
344 static void __init omap_h4_init(void)
345 {
346         /*
347          * Make sure the serial ports are muxed on at this point.
348          * You have to mux them off in device drivers later on
349          * if not needed.
350          */
351 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
352         omap_cfg_reg(K15_24XX_UART3_TX);
353         omap_cfg_reg(K14_24XX_UART3_RX);
354 #endif
355
356 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
357         if (omap_has_menelaus()) {
358                 row_gpios[5] = 0;
359                 col_gpios[2] = 15;
360                 col_gpios[6] = 18;
361         }
362 #endif
363
364         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
365         omap_board_config = h4_config;
366         omap_board_config_size = ARRAY_SIZE(h4_config);
367         omap_serial_init();
368 }
369
370 static void __init omap_h4_map_io(void)
371 {
372         omap2_map_common_io();
373 }
374
375 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
376         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
377         .phys_io        = 0x48000000,
378         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
379         .boot_params    = 0x80000100,
380         .map_io         = omap_h4_map_io,
381         .init_irq       = omap_h4_init_irq,
382         .init_machine   = omap_h4_init,
383         .timer          = &omap_timer,
384 MACHINE_END