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omap: Fix gpio_request calls to happen as arch_initcall
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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/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 #include <asm/gpio.h>
38
39 #include <asm/mach-types.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42
43 #include <mach/irqs.h>
44 #include <plat/mux.h>
45 #include <plat/tc.h>
46 #include <plat/usb.h>
47 #include <plat/keypad.h>
48 #include <plat/dma.h>
49 #include <plat/common.h>
50 #include <plat/flash.h>
51
52 #include "board-h3.h"
53
54 /* In OMAP1710 H3 the Ethernet is directly connected to CS1 */
55 #define OMAP1710_ETHR_START             0x04000300
56
57 #define H3_TS_GPIO      48
58
59 static int h3_keymap[] = {
60         KEY(0, 0, KEY_LEFT),
61         KEY(0, 1, KEY_RIGHT),
62         KEY(0, 2, KEY_3),
63         KEY(0, 3, KEY_F10),
64         KEY(0, 4, KEY_F5),
65         KEY(0, 5, KEY_9),
66         KEY(1, 0, KEY_DOWN),
67         KEY(1, 1, KEY_UP),
68         KEY(1, 2, KEY_2),
69         KEY(1, 3, KEY_F9),
70         KEY(1, 4, KEY_F7),
71         KEY(1, 5, KEY_0),
72         KEY(2, 0, KEY_ENTER),
73         KEY(2, 1, KEY_6),
74         KEY(2, 2, KEY_1),
75         KEY(2, 3, KEY_F2),
76         KEY(2, 4, KEY_F6),
77         KEY(2, 5, KEY_HOME),
78         KEY(3, 0, KEY_8),
79         KEY(3, 1, KEY_5),
80         KEY(3, 2, KEY_F12),
81         KEY(3, 3, KEY_F3),
82         KEY(3, 4, KEY_F8),
83         KEY(3, 5, KEY_END),
84         KEY(4, 0, KEY_7),
85         KEY(4, 1, KEY_4),
86         KEY(4, 2, KEY_F11),
87         KEY(4, 3, KEY_F1),
88         KEY(4, 4, KEY_F4),
89         KEY(4, 5, KEY_ESC),
90         KEY(5, 0, KEY_F13),
91         KEY(5, 1, KEY_F14),
92         KEY(5, 2, KEY_F15),
93         KEY(5, 3, KEY_F16),
94         KEY(5, 4, KEY_SLEEP),
95         0
96 };
97
98
99 static struct mtd_partition nor_partitions[] = {
100         /* bootloader (U-Boot, etc) in first sector */
101         {
102               .name             = "bootloader",
103               .offset           = 0,
104               .size             = SZ_128K,
105               .mask_flags       = MTD_WRITEABLE, /* force read-only */
106         },
107         /* bootloader params in the next sector */
108         {
109               .name             = "params",
110               .offset           = MTDPART_OFS_APPEND,
111               .size             = SZ_128K,
112               .mask_flags       = 0,
113         },
114         /* kernel */
115         {
116               .name             = "kernel",
117               .offset           = MTDPART_OFS_APPEND,
118               .size             = SZ_2M,
119               .mask_flags       = 0
120         },
121         /* file system */
122         {
123               .name             = "filesystem",
124               .offset           = MTDPART_OFS_APPEND,
125               .size             = MTDPART_SIZ_FULL,
126               .mask_flags       = 0
127         }
128 };
129
130 static struct physmap_flash_data nor_data = {
131         .width          = 2,
132         .set_vpp        = omap1_set_vpp,
133         .parts          = nor_partitions,
134         .nr_parts       = ARRAY_SIZE(nor_partitions),
135 };
136
137 static struct resource nor_resource = {
138         /* This is on CS3, wherever it's mapped */
139         .flags          = IORESOURCE_MEM,
140 };
141
142 static struct platform_device nor_device = {
143         .name           = "physmap-flash",
144         .id             = 0,
145         .dev            = {
146                 .platform_data  = &nor_data,
147         },
148         .num_resources  = 1,
149         .resource       = &nor_resource,
150 };
151
152 static struct mtd_partition nand_partitions[] = {
153 #if 0
154         /* REVISIT: enable these partitions if you make NAND BOOT work */
155         {
156                 .name           = "xloader",
157                 .offset         = 0,
158                 .size           = 64 * 1024,
159                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
160         },
161         {
162                 .name           = "bootloader",
163                 .offset         = MTDPART_OFS_APPEND,
164                 .size           = 256 * 1024,
165                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
166         },
167         {
168                 .name           = "params",
169                 .offset         = MTDPART_OFS_APPEND,
170                 .size           = 192 * 1024,
171         },
172         {
173                 .name           = "kernel",
174                 .offset         = MTDPART_OFS_APPEND,
175                 .size           = 2 * SZ_1M,
176         },
177 #endif
178         {
179                 .name           = "filesystem",
180                 .size           = MTDPART_SIZ_FULL,
181                 .offset         = MTDPART_OFS_APPEND,
182         },
183 };
184
185 static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
186 {
187         struct nand_chip *this = mtd->priv;
188         unsigned long mask;
189
190         if (cmd == NAND_CMD_NONE)
191                 return;
192
193         mask = (ctrl & NAND_CLE) ? 0x02 : 0;
194         if (ctrl & NAND_ALE)
195                 mask |= 0x04;
196         writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
197 }
198
199 #define H3_NAND_RB_GPIO_PIN     10
200
201 static int nand_dev_ready(struct mtd_info *mtd)
202 {
203         return gpio_get_value(H3_NAND_RB_GPIO_PIN);
204 }
205
206 static const char *part_probes[] = { "cmdlinepart", NULL };
207
208 struct platform_nand_data nand_platdata = {
209         .chip   = {
210                 .nr_chips               = 1,
211                 .chip_offset            = 0,
212                 .nr_partitions          = ARRAY_SIZE(nand_partitions),
213                 .partitions             = nand_partitions,
214                 .options                = NAND_SAMSUNG_LP_OPTIONS,
215                 .part_probe_types       = part_probes,
216         },
217         .ctrl   = {
218                 .cmd_ctrl       = nand_cmd_ctl,
219                 .dev_ready      = nand_dev_ready,
220
221         },
222 };
223
224 static struct resource nand_resource = {
225         .flags          = IORESOURCE_MEM,
226 };
227
228 static struct platform_device nand_device = {
229         .name           = "gen_nand",
230         .id             = 0,
231         .dev            = {
232                 .platform_data  = &nand_platdata,
233         },
234         .num_resources  = 1,
235         .resource       = &nand_resource,
236 };
237
238 static struct smc91x_platdata smc91x_info = {
239         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
240         .leda   = RPC_LED_100_10,
241         .ledb   = RPC_LED_TX_RX,
242 };
243
244 static struct resource smc91x_resources[] = {
245         [0] = {
246                 .start  = OMAP1710_ETHR_START,          /* Physical */
247                 .end    = OMAP1710_ETHR_START + 0xf,
248                 .flags  = IORESOURCE_MEM,
249         },
250         [1] = {
251                 .start  = OMAP_GPIO_IRQ(40),
252                 .end    = OMAP_GPIO_IRQ(40),
253                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
254         },
255 };
256
257 static struct platform_device smc91x_device = {
258         .name           = "smc91x",
259         .id             = 0,
260         .dev    = {
261                 .platform_data  = &smc91x_info,
262         },
263         .num_resources  = ARRAY_SIZE(smc91x_resources),
264         .resource       = smc91x_resources,
265 };
266
267 static void __init h3_init_smc91x(void)
268 {
269         omap_cfg_reg(W15_1710_GPIO40);
270         if (gpio_request(40, "SMC91x irq") < 0) {
271                 printk("Error requesting gpio 40 for smc91x irq\n");
272                 return;
273         }
274 }
275
276 #define GPTIMER_BASE            0xFFFB1400
277 #define GPTIMER_REGS(x) (0xFFFB1400 + (x * 0x800))
278 #define GPTIMER_REGS_SIZE       0x46
279
280 static struct resource intlat_resources[] = {
281         [0] = {
282                 .start  = GPTIMER_REGS(0),            /* Physical */
283                 .end    = GPTIMER_REGS(0) + GPTIMER_REGS_SIZE,
284                 .flags  = IORESOURCE_MEM,
285         },
286         [1] = {
287                 .start  = INT_1610_GPTIMER1,
288                 .end    = INT_1610_GPTIMER1,
289                 .flags  = IORESOURCE_IRQ,
290         },
291 };
292
293 static struct platform_device intlat_device = {
294         .name      = "omap_intlat",
295         .id          = 0,
296         .num_resources  = ARRAY_SIZE(intlat_resources),
297         .resource       = intlat_resources,
298 };
299
300 static struct resource h3_kp_resources[] = {
301         [0] = {
302                 .start  = INT_KEYBOARD,
303                 .end    = INT_KEYBOARD,
304                 .flags  = IORESOURCE_IRQ,
305         },
306 };
307
308 static struct omap_kp_platform_data h3_kp_data = {
309         .rows           = 8,
310         .cols           = 8,
311         .keymap         = h3_keymap,
312         .keymapsize     = ARRAY_SIZE(h3_keymap),
313         .rep            = 1,
314         .delay          = 9,
315         .dbounce        = 1,
316 };
317
318 static struct platform_device h3_kp_device = {
319         .name           = "omap-keypad",
320         .id             = -1,
321         .dev            = {
322                 .platform_data = &h3_kp_data,
323         },
324         .num_resources  = ARRAY_SIZE(h3_kp_resources),
325         .resource       = h3_kp_resources,
326 };
327
328 static struct platform_device h3_lcd_device = {
329         .name           = "lcd_h3",
330         .id             = -1,
331 };
332
333 static struct spi_board_info h3_spi_board_info[] __initdata = {
334         [0] = {
335                 .modalias       = "tsc2101",
336                 .bus_num        = 2,
337                 .chip_select    = 0,
338                 .irq            = OMAP_GPIO_IRQ(H3_TS_GPIO),
339                 .max_speed_hz   = 16000000,
340                 /* .platform_data       = &tsc_platform_data, */
341         },
342 };
343
344 static struct platform_device *devices[] __initdata = {
345         &nor_device,
346         &nand_device,
347         &smc91x_device,
348         &intlat_device,
349         &h3_kp_device,
350         &h3_lcd_device,
351 };
352
353 static struct omap_usb_config h3_usb_config __initdata = {
354         /* usb1 has a Mini-AB port and external isp1301 transceiver */
355         .otg        = 2,
356
357 #ifdef CONFIG_USB_GADGET_OMAP
358         .hmc_mode       = 19,   /* 0:host(off) 1:dev|otg 2:disabled */
359 #elif  defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
360         /* NONSTANDARD CABLE NEEDED (B-to-Mini-B) */
361         .hmc_mode       = 20,   /* 1:dev|otg(off) 1:host 2:disabled */
362 #endif
363
364         .pins[1]        = 3,
365 };
366
367 static struct omap_lcd_config h3_lcd_config __initdata = {
368         .ctrl_name      = "internal",
369 };
370
371 static struct omap_board_config_kernel h3_config[] __initdata = {
372         { OMAP_TAG_LCD,         &h3_lcd_config },
373 };
374
375 static struct i2c_board_info __initdata h3_i2c_board_info[] = {
376        {
377                 I2C_BOARD_INFO("tps65013", 0x48),
378                /* .irq         = OMAP_GPIO_IRQ(??), */
379        },
380         {
381                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
382                 .irq            = OMAP_GPIO_IRQ(14),
383         },
384 };
385
386 static void __init h3_init(void)
387 {
388         h3_init_smc91x();
389
390         /* Here we assume the NOR boot config:  NOR on CS3 (possibly swapped
391          * to address 0 by a dip switch), NAND on CS2B.  The NAND driver will
392          * notice whether a NAND chip is enabled at probe time.
393          *
394          * H3 support NAND-boot, with a dip switch to put NOR on CS2B and NAND
395          * (which on H2 may be 16bit) on CS3.  Try detecting that in code here,
396          * to avoid probing every possible flash configuration...
397          */
398         nor_resource.end = nor_resource.start = omap_cs3_phys();
399         nor_resource.end += SZ_32M - 1;
400
401         nand_resource.end = nand_resource.start = OMAP_CS2B_PHYS;
402         nand_resource.end += SZ_4K - 1;
403         if (gpio_request(H3_NAND_RB_GPIO_PIN, "NAND ready") < 0)
404                 BUG();
405         gpio_direction_input(H3_NAND_RB_GPIO_PIN);
406
407         /* GPIO10 Func_MUX_CTRL reg bit 29:27, Configure V2 to mode1 as GPIO */
408         /* GPIO10 pullup/down register, Enable pullup on GPIO10 */
409         omap_cfg_reg(V2_1710_GPIO10);
410
411         /* Mux pins for keypad */
412         omap_cfg_reg(F18_1610_KBC0);
413         omap_cfg_reg(D20_1610_KBC1);
414         omap_cfg_reg(D19_1610_KBC2);
415         omap_cfg_reg(E18_1610_KBC3);
416         omap_cfg_reg(C21_1610_KBC4);
417         omap_cfg_reg(G18_1610_KBR0);
418         omap_cfg_reg(F19_1610_KBR1);
419         omap_cfg_reg(H14_1610_KBR2);
420         omap_cfg_reg(E20_1610_KBR3);
421         omap_cfg_reg(E19_1610_KBR4);
422         omap_cfg_reg(N19_1610_KBR5);
423
424         platform_add_devices(devices, ARRAY_SIZE(devices));
425         spi_register_board_info(h3_spi_board_info,
426                                 ARRAY_SIZE(h3_spi_board_info));
427         omap_board_config = h3_config;
428         omap_board_config_size = ARRAY_SIZE(h3_config);
429         omap_serial_init();
430         omap_register_i2c_bus(1, 100, h3_i2c_board_info,
431                               ARRAY_SIZE(h3_i2c_board_info));
432         omap1_usb_init(&h3_usb_config);
433         h3_mmc_init();
434 }
435
436 static void __init h3_init_irq(void)
437 {
438         omap1_init_common_hw();
439         omap_init_irq();
440         omap_gpio_init();
441 }
442
443 static void __init h3_map_io(void)
444 {
445         omap1_map_common_io();
446 }
447
448 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
449         /* Maintainer: Texas Instruments, Inc. */
450         .boot_params    = 0x10000100,
451         .map_io         = h3_map_io,
452         .reserve        = omap_reserve,
453         .init_irq       = h3_init_irq,
454         .init_machine   = h3_init,
455         .timer          = &omap_timer,
456 MACHINE_END