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[net-next-2.6.git] / arch / arm / mach-omap2 / board-h4.c
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1dbae815 1/*
f30c2269 2 * linux/arch/arm/mach-omap2/board-h4.c
1dbae815
TL		 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>
9b6553cd
TL		 20#include <linux/workqueue.h>
21#include <linux/input.h>
1dbae815
TL		 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>
9b6553cd 30#include <asm/arch/gpioexpander.h>
1dbae815
TL		 31#include <asm/arch/mux.h>
32#include <asm/arch/usb.h>
9b6553cd 33#include <asm/arch/irda.h>
1dbae815
TL		 34#include <asm/arch/board.h>
35#include <asm/arch/common.h>
9b6553cd
TL		 36#include <asm/arch/keypad.h>
37#include <asm/arch/menelaus.h>
38#include <asm/arch/dma.h>
39#include "prcm-regs.h"
1dbae815
TL		 40
41#include <asm/io.h>
42#include <asm/delay.h>
43
9b6553cd
TL		 44static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
45static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
46
47static int h4_keymap[] = {
48 KEY(0, 0, KEY_LEFT),
49 KEY(0, 1, KEY_RIGHT),
50 KEY(0, 2, KEY_A),
51 KEY(0, 3, KEY_B),
52 KEY(0, 4, KEY_C),
53 KEY(1, 0, KEY_DOWN),
54 KEY(1, 1, KEY_UP),
55 KEY(1, 2, KEY_E),
56 KEY(1, 3, KEY_F),
57 KEY(1, 4, KEY_G),
58 KEY(2, 0, KEY_ENTER),
59 KEY(2, 1, KEY_I),
60 KEY(2, 2, KEY_J),
61 KEY(2, 3, KEY_K),
62 KEY(2, 4, KEY_3),
63 KEY(3, 0, KEY_M),
64 KEY(3, 1, KEY_N),
65 KEY(3, 2, KEY_O),
66 KEY(3, 3, KEY_P),
67 KEY(3, 4, KEY_Q),
68 KEY(4, 0, KEY_R),
69 KEY(4, 1, KEY_4),
70 KEY(4, 2, KEY_T),
71 KEY(4, 3, KEY_U),
72 KEY(4, 4, KEY_ENTER),
73 KEY(5, 0, KEY_V),
74 KEY(5, 1, KEY_W),
75 KEY(5, 2, KEY_L),
76 KEY(5, 3, KEY_S),
77 KEY(5, 4, KEY_ENTER),
78 0
79};
80
1dbae815
TL		 81static struct mtd_partition h4_partitions[] = {
82 /* bootloader (U-Boot, etc) in first sector */
83 {
84 .name = "bootloader",
85 .offset = 0,
86 .size = SZ_128K,
87 .mask_flags = MTD_WRITEABLE, /* force read-only */
88 },
89 /* bootloader params in the next sector */
90 {
91 .name = "params",
92 .offset = MTDPART_OFS_APPEND,
93 .size = SZ_128K,
94 .mask_flags = 0,
95 },
96 /* kernel */
97 {
98 .name = "kernel",
99 .offset = MTDPART_OFS_APPEND,
100 .size = SZ_2M,
101 .mask_flags = 0
102 },
103 /* file system */
104 {
105 .name = "filesystem",
106 .offset = MTDPART_OFS_APPEND,
107 .size = MTDPART_SIZ_FULL,
108 .mask_flags = 0
109 }
110};
111
112static struct flash_platform_data h4_flash_data = {
113 .map_name = "cfi_probe",
114 .width = 2,
115 .parts = h4_partitions,
116 .nr_parts = ARRAY_SIZE(h4_partitions),
117};
118
119static struct resource h4_flash_resource = {
120 .start = H4_CS0_BASE,
121 .end = H4_CS0_BASE + SZ_64M - 1,
122 .flags = IORESOURCE_MEM,
123};
124
125static struct platform_device h4_flash_device = {
126 .name = "omapflash",
127 .id = 0,
128 .dev = {
129 .platform_data = &h4_flash_data,
130 },
131 .num_resources = 1,
132 .resource = &h4_flash_resource,
133};
134
135static struct resource h4_smc91x_resources[] = {
136 [0] = {
137 .start = OMAP24XX_ETHR_START, /* Physical */
138 .end = OMAP24XX_ETHR_START + 0xf,
139 .flags = IORESOURCE_MEM,
140 },
141 [1] = {
142 .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
143 .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
144 .flags = IORESOURCE_IRQ,
145 },
146};
147
148static struct platform_device h4_smc91x_device = {
149 .name = "smc91x",
150 .id = -1,
151 .num_resources = ARRAY_SIZE(h4_smc91x_resources),
152 .resource = h4_smc91x_resources,
153};
154
9b6553cd
TL		 155/* Select between the IrDA and aGPS module
156 */
157static int h4_select_irda(struct device *dev, int state)
158{
159 unsigned char expa;
160 int err = 0;
161
162 if ((err = read_gpio_expa(&expa, 0x21))) {
163 printk(KERN_ERR "Error reading from I/O expander\n");
164 return err;
165 }
166
167 /* 'P6' enable/disable IRDA_TX and IRDA_RX */
168 if (state & IR_SEL) { /* IrDa */
169 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
170 printk(KERN_ERR "Error writing to I/O expander\n");
171 return err;
172 }
173 } else {
174 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
175 printk(KERN_ERR "Error writing to I/O expander\n");
176 return err;
177 }
178 }
179 return err;
180}
181
182static void set_trans_mode(void *data)
183{
184 int *mode = data;
185 unsigned char expa;
186 int err = 0;
187
188 if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
189 printk(KERN_ERR "Error reading from I/O expander\n");
190 }
191
192 expa &= ~0x01;
193
194 if (!(*mode & IR_SIRMODE)) { /* MIR/FIR */
195 expa |= 0x01;
196 }
197
198 if ((err = write_gpio_expa(expa, 0x20)) != 0) {
199 printk(KERN_ERR "Error writing to I/O expander\n");
200 }
201}
202
203static int h4_transceiver_mode(struct device *dev, int mode)
204{
205 struct omap_irda_config *irda_config = dev->platform_data;
206
207 cancel_delayed_work(&irda_config->gpio_expa);
208 PREPARE_WORK(&irda_config->gpio_expa, set_trans_mode, &mode);
209 schedule_work(&irda_config->gpio_expa);
210
211 return 0;
212}
213
214static struct omap_irda_config h4_irda_data = {
215 .transceiver_cap = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
216 .transceiver_mode = h4_transceiver_mode,
217 .select_irda = h4_select_irda,
218 .rx_channel = OMAP24XX_DMA_UART3_RX,
219 .tx_channel = OMAP24XX_DMA_UART3_TX,
220 .dest_start = OMAP_UART3_BASE,
221 .src_start = OMAP_UART3_BASE,
222 .tx_trigger = OMAP24XX_DMA_UART3_TX,
223 .rx_trigger = OMAP24XX_DMA_UART3_RX,
224};
225
226static struct resource h4_irda_resources[] = {
227 [0] = {
228 .start = INT_24XX_UART3_IRQ,
229 .end = INT_24XX_UART3_IRQ,
230 .flags = IORESOURCE_IRQ,
231 },
232};
233
234static struct platform_device h4_irda_device = {
235 .name = "omapirda",
236 .id = -1,
237 .dev = {
238 .platform_data = &h4_irda_data,
239 },
240 .num_resources = 1,
241 .resource = h4_irda_resources,
242};
243
244static struct omap_kp_platform_data h4_kp_data = {
245 .rows = 6,
246 .cols = 7,
247 .keymap = h4_keymap,
4d24607b 248 .keymapsize = ARRAY_SIZE(h4_keymap),
9b6553cd
TL		 249 .rep = 1,
250 .row_gpios = row_gpios,
251 .col_gpios = col_gpios,
252};
253
254static struct platform_device h4_kp_device = {
255 .name = "omap-keypad",
256 .id = -1,
257 .dev = {
258 .platform_data = &h4_kp_data,
259 },
260};
261
262static struct platform_device h4_lcd_device = {
263 .name = "lcd_h4",
264 .id = -1,
265};
266
1dbae815
TL		 267static struct platform_device *h4_devices[] __initdata = {
268 &h4_smc91x_device,
269 &h4_flash_device,
9b6553cd
TL		 270 &h4_irda_device,
271 &h4_kp_device,
272 &h4_lcd_device,
1dbae815
TL		 273};
274
275static inline void __init h4_init_smc91x(void)
276{
277 /* Make sure CS1 timings are correct */
278 GPMC_CONFIG1_1 = 0x00011200;
279 GPMC_CONFIG2_1 = 0x001f1f01;
280 GPMC_CONFIG3_1 = 0x00080803;
281 GPMC_CONFIG4_1 = 0x1c091c09;
282 GPMC_CONFIG5_1 = 0x041f1f1f;
283 GPMC_CONFIG6_1 = 0x000004c4;
284 GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
285 udelay(100);
286
287 omap_cfg_reg(M15_24XX_GPIO92);
288 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
289 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
290 OMAP24XX_ETHR_GPIO_IRQ);
291 return;
292 }
293 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
294}
295
296static void __init omap_h4_init_irq(void)
297{
18f49ea2 298 omap2_init_common_hw();
1dbae815
TL		 299 omap_init_irq();
300 omap_gpio_init();
301 h4_init_smc91x();
302}
303
304static struct omap_uart_config h4_uart_config __initdata = {
305 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
306};
307
308static struct omap_mmc_config h4_mmc_config __initdata = {
309 .mmc [0] = {
310 .enabled = 1,
311 .wire4 = 1,
312 .wp_pin = -1,
313 .power_pin = -1,
314 .switch_pin = -1,
315 },
316};
317
318static struct omap_lcd_config h4_lcd_config __initdata = {
1dbae815
TL		 319 .ctrl_name = "internal",
320};
321
322static struct omap_board_config_kernel h4_config[] = {
323 { OMAP_TAG_UART, &h4_uart_config },
324 { OMAP_TAG_MMC, &h4_mmc_config },
325 { OMAP_TAG_LCD, &h4_lcd_config },
326};
327
328static void __init omap_h4_init(void)
329{
330 /*
331 * Make sure the serial ports are muxed on at this point.
332 * You have to mux them off in device drivers later on
333 * if not needed.
334 */
9b6553cd
TL		 335#if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
336 omap_cfg_reg(K15_24XX_UART3_TX);
337 omap_cfg_reg(K14_24XX_UART3_RX);
338#endif
339
340#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
341 if (omap_has_menelaus()) {
342 row_gpios[5] = 0;
343 col_gpios[2] = 15;
344 col_gpios[6] = 18;
345 }
346#endif
347
1dbae815
TL		 348 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
349 omap_board_config = h4_config;
350 omap_board_config_size = ARRAY_SIZE(h4_config);
351 omap_serial_init();
352}
353
354static void __init omap_h4_map_io(void)
355{
18f49ea2 356 omap2_map_common_io();
1dbae815
TL		 357}
358
359MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
360 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
1dbae815
TL		 361 .phys_io = 0x48000000,
362 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
363 .boot_params = 0x80000100,
364 .map_io = omap_h4_map_io,
365 .init_irq = omap_h4_init_irq,
366 .init_machine = omap_h4_init,
367 .timer = &omap_timer,
368MACHINE_END
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