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 /* Select between the IrDA and aGPS module
135 */
136 static int h4_select_irda(struct device *dev, int state)
137 {
138 unsigned char expa;
139 int err = 0;
140
141 if ((err = read_gpio_expa(&expa, 0x21))) {
142 printk(KERN_ERR "Error reading from I/O expander\n");
143 return err;
144 }
145
146 /* 'P6' enable/disable IRDA_TX and IRDA_RX */
147 if (state & IR_SEL) { /* IrDa */
148 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
149 printk(KERN_ERR "Error writing to I/O expander\n");
150 return err;
151 }
152 } else {
153 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
154 printk(KERN_ERR "Error writing to I/O expander\n");
155 return err;
156 }
157 }
158 return err;
159 }
160
161 static void set_trans_mode(struct work_struct *work)
162 {
163 struct omap_irda_config *irda_config =
164 container_of(work, struct omap_irda_config, gpio_expa.work);
165 int mode = irda_config->mode;
166 unsigned char expa;
167 int err = 0;
168
169 if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
170 printk(KERN_ERR "Error reading from I/O expander\n");
171 }
172
173 expa &= ~0x01;
174
175 if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
176 expa |= 0x01;
177 }
178
179 if ((err = write_gpio_expa(expa, 0x20)) != 0) {
180 printk(KERN_ERR "Error writing to I/O expander\n");
181 }
182 }
183
184 static int h4_transceiver_mode(struct device *dev, int mode)
185 {
186 struct omap_irda_config *irda_config = dev->platform_data;
187
188 irda_config->mode = mode;
189 cancel_delayed_work(&irda_config->gpio_expa);
190 PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
191 schedule_delayed_work(&irda_config->gpio_expa, 0);
192
193 return 0;
194 }
195
196 static struct omap_irda_config h4_irda_data = {
197 .transceiver_cap = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
198 .transceiver_mode = h4_transceiver_mode,
199 .select_irda = h4_select_irda,
200 .rx_channel = OMAP24XX_DMA_UART3_RX,
201 .tx_channel = OMAP24XX_DMA_UART3_TX,
202 .dest_start = OMAP_UART3_BASE,
203 .src_start = OMAP_UART3_BASE,
204 .tx_trigger = OMAP24XX_DMA_UART3_TX,
205 .rx_trigger = OMAP24XX_DMA_UART3_RX,
206 };
207
208 static struct resource h4_irda_resources[] = {
209 [0] = {
210 .start = INT_24XX_UART3_IRQ,
211 .end = INT_24XX_UART3_IRQ,
212 .flags = IORESOURCE_IRQ,
213 },
214 };
215
216 static struct platform_device h4_irda_device = {
217 .name = "omapirda",
218 .id = -1,
219 .dev = {
220 .platform_data = &h4_irda_data,
221 },
222 .num_resources = 1,
223 .resource = h4_irda_resources,
224 };
225
226 static struct omap_kp_platform_data h4_kp_data = {
227 .rows = 6,
228 .cols = 7,
229 .keymap = h4_keymap,
230 .keymapsize = ARRAY_SIZE(h4_keymap),
231 .rep = 1,
232 .row_gpios = row_gpios,
233 .col_gpios = col_gpios,
234 };
235
236 static struct platform_device h4_kp_device = {
237 .name = "omap-keypad",
238 .id = -1,
239 .dev = {
240 .platform_data = &h4_kp_data,
241 },
242 };
243
244 static struct platform_device h4_lcd_device = {
245 .name = "lcd_h4",
246 .id = -1,
247 };
248
249 static struct platform_device *h4_devices[] __initdata = {
250 &h4_flash_device,
251 &h4_irda_device,
252 &h4_kp_device,
253 &h4_lcd_device,
254 };
255
256 static inline void __init h4_init_debug(void)
257 {
258 /* Make sure CS1 timings are correct */
259 GPMC_CONFIG1_1 = 0x00011200;
260 GPMC_CONFIG2_1 = 0x001f1f01;
261 GPMC_CONFIG3_1 = 0x00080803;
262 GPMC_CONFIG4_1 = 0x1c091c09;
263 GPMC_CONFIG5_1 = 0x041f1f1f;
264 GPMC_CONFIG6_1 = 0x000004c4;
265 GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
266 udelay(100);
267
268 omap_cfg_reg(M15_24XX_GPIO92);
269 if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
270 gpmc_cs_free(eth_cs);
271 }
272
273 static void __init omap_h4_init_irq(void)
274 {
275 omap2_init_common_hw();
276 omap_init_irq();
277 omap_gpio_init();
278 }
279
280 static struct omap_uart_config h4_uart_config __initdata = {
281 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
282 };
283
284 static struct omap_mmc_config h4_mmc_config __initdata = {
285 .mmc [0] = {
286 .enabled = 1,
287 .wire4 = 1,
288 .wp_pin = -1,
289 .power_pin = -1,
290 .switch_pin = -1,
291 },
292 };
293
294 static struct omap_lcd_config h4_lcd_config __initdata = {
295 .ctrl_name = "internal",
296 };
297
298 static struct omap_board_config_kernel h4_config[] = {
299 { OMAP_TAG_UART, &h4_uart_config },
300 { OMAP_TAG_MMC, &h4_mmc_config },
301 { OMAP_TAG_LCD, &h4_lcd_config },
302 };
303
304 static void __init omap_h4_init(void)
305 {
306 /*
307 * Make sure the serial ports are muxed on at this point.
308 * You have to mux them off in device drivers later on
309 * if not needed.
310 */
311 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
312 omap_cfg_reg(K15_24XX_UART3_TX);
313 omap_cfg_reg(K14_24XX_UART3_RX);
314 #endif
315
316 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
317 if (omap_has_menelaus()) {
318 row_gpios[5] = 0;
319 col_gpios[2] = 15;
320 col_gpios[6] = 18;
321 }
322 #endif
323
324 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
325 omap_board_config = h4_config;
326 omap_board_config_size = ARRAY_SIZE(h4_config);
327 omap_serial_init();
328 }
329
330 static void __init omap_h4_map_io(void)
331 {
332 omap2_map_common_io();
333 }
334
335 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
336 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
337 .phys_io = 0x48000000,
338 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
339 .boot_params = 0x80000100,
340 .map_io = omap_h4_map_io,
341 .init_irq = omap_h4_init_irq,
342 .init_machine = omap_h4_init,
343 .timer = &omap_timer,
344 MACHINE_END
345
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