5e9b14675b1e7bc81ff3d9c607d5d004b4bb51e0
[linux-3.10.git] / 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/i2c.h>
22 #include <linux/i2c/at24.h>
23 #include <linux/input.h>
24 #include <linux/err.h>
25 #include <linux/clk.h>
26 #include <linux/io.h>
27
28 #include <mach/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/flash.h>
33
34 #include <mach/control.h>
35 #include <mach/gpio.h>
36 #include <mach/gpioexpander.h>
37 #include <mach/mux.h>
38 #include <mach/usb.h>
39 #include <mach/irda.h>
40 #include <mach/board.h>
41 #include <mach/common.h>
42 #include <mach/keypad.h>
43 #include <mach/menelaus.h>
44 #include <mach/dma.h>
45 #include <mach/gpmc.h>
46
47 #define H4_FLASH_CS     0
48 #define H4_SMC91X_CS    1
49
50 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
51 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
52
53 static int h4_keymap[] = {
54         KEY(0, 0, KEY_LEFT),
55         KEY(0, 1, KEY_RIGHT),
56         KEY(0, 2, KEY_A),
57         KEY(0, 3, KEY_B),
58         KEY(0, 4, KEY_C),
59         KEY(1, 0, KEY_DOWN),
60         KEY(1, 1, KEY_UP),
61         KEY(1, 2, KEY_E),
62         KEY(1, 3, KEY_F),
63         KEY(1, 4, KEY_G),
64         KEY(2, 0, KEY_ENTER),
65         KEY(2, 1, KEY_I),
66         KEY(2, 2, KEY_J),
67         KEY(2, 3, KEY_K),
68         KEY(2, 4, KEY_3),
69         KEY(3, 0, KEY_M),
70         KEY(3, 1, KEY_N),
71         KEY(3, 2, KEY_O),
72         KEY(3, 3, KEY_P),
73         KEY(3, 4, KEY_Q),
74         KEY(4, 0, KEY_R),
75         KEY(4, 1, KEY_4),
76         KEY(4, 2, KEY_T),
77         KEY(4, 3, KEY_U),
78         KEY(4, 4, KEY_ENTER),
79         KEY(5, 0, KEY_V),
80         KEY(5, 1, KEY_W),
81         KEY(5, 2, KEY_L),
82         KEY(5, 3, KEY_S),
83         KEY(5, 4, KEY_ENTER),
84         0
85 };
86
87 static struct mtd_partition h4_partitions[] = {
88         /* bootloader (U-Boot, etc) in first sector */
89         {
90               .name             = "bootloader",
91               .offset           = 0,
92               .size             = SZ_128K,
93               .mask_flags       = MTD_WRITEABLE, /* force read-only */
94         },
95         /* bootloader params in the next sector */
96         {
97               .name             = "params",
98               .offset           = MTDPART_OFS_APPEND,
99               .size             = SZ_128K,
100               .mask_flags       = 0,
101         },
102         /* kernel */
103         {
104               .name             = "kernel",
105               .offset           = MTDPART_OFS_APPEND,
106               .size             = SZ_2M,
107               .mask_flags       = 0
108         },
109         /* file system */
110         {
111               .name             = "filesystem",
112               .offset           = MTDPART_OFS_APPEND,
113               .size             = MTDPART_SIZ_FULL,
114               .mask_flags       = 0
115         }
116 };
117
118 static struct flash_platform_data h4_flash_data = {
119         .map_name       = "cfi_probe",
120         .width          = 2,
121         .parts          = h4_partitions,
122         .nr_parts       = ARRAY_SIZE(h4_partitions),
123 };
124
125 static struct resource h4_flash_resource = {
126         .flags          = IORESOURCE_MEM,
127 };
128
129 static struct platform_device h4_flash_device = {
130         .name           = "omapflash",
131         .id             = 0,
132         .dev            = {
133                 .platform_data  = &h4_flash_data,
134         },
135         .num_resources  = 1,
136         .resource       = &h4_flash_resource,
137 };
138
139 /* Select between the IrDA and aGPS module
140  */
141 static int h4_select_irda(struct device *dev, int state)
142 {
143         unsigned char expa;
144         int err = 0;
145
146         if ((err = read_gpio_expa(&expa, 0x21))) {
147                 printk(KERN_ERR "Error reading from I/O expander\n");
148                 return err;
149         }
150
151         /* 'P6' enable/disable IRDA_TX and IRDA_RX */
152         if (state & IR_SEL) {   /* IrDa */
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         } else {
158                 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
159                         printk(KERN_ERR "Error writing to I/O expander\n");
160                         return err;
161                 }
162         }
163         return err;
164 }
165
166 static void set_trans_mode(struct work_struct *work)
167 {
168         struct omap_irda_config *irda_config =
169                 container_of(work, struct omap_irda_config, gpio_expa.work);
170         int mode = irda_config->mode;
171         unsigned char expa;
172         int err = 0;
173
174         if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
175                 printk(KERN_ERR "Error reading from I/O expander\n");
176         }
177
178         expa &= ~0x01;
179
180         if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
181                 expa |= 0x01;
182         }
183
184         if ((err = write_gpio_expa(expa, 0x20)) != 0) {
185                 printk(KERN_ERR "Error writing to I/O expander\n");
186         }
187 }
188
189 static int h4_transceiver_mode(struct device *dev, int mode)
190 {
191         struct omap_irda_config *irda_config = dev->platform_data;
192
193         irda_config->mode = mode;
194         cancel_delayed_work(&irda_config->gpio_expa);
195         PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
196         schedule_delayed_work(&irda_config->gpio_expa, 0);
197
198         return 0;
199 }
200
201 static struct omap_irda_config h4_irda_data = {
202         .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
203         .transceiver_mode       = h4_transceiver_mode,
204         .select_irda            = h4_select_irda,
205         .rx_channel             = OMAP24XX_DMA_UART3_RX,
206         .tx_channel             = OMAP24XX_DMA_UART3_TX,
207         .dest_start             = OMAP_UART3_BASE,
208         .src_start              = OMAP_UART3_BASE,
209         .tx_trigger             = OMAP24XX_DMA_UART3_TX,
210         .rx_trigger             = OMAP24XX_DMA_UART3_RX,
211 };
212
213 static struct resource h4_irda_resources[] = {
214         [0] = {
215                 .start  = INT_24XX_UART3_IRQ,
216                 .end    = INT_24XX_UART3_IRQ,
217                 .flags  = IORESOURCE_IRQ,
218         },
219 };
220
221 static struct platform_device h4_irda_device = {
222         .name           = "omapirda",
223         .id             = -1,
224         .dev            = {
225                 .platform_data  = &h4_irda_data,
226         },
227         .num_resources  = 1,
228         .resource       = h4_irda_resources,
229 };
230
231 static struct omap_kp_platform_data h4_kp_data = {
232         .rows           = 6,
233         .cols           = 7,
234         .keymap         = h4_keymap,
235         .keymapsize     = ARRAY_SIZE(h4_keymap),
236         .rep            = 1,
237         .row_gpios      = row_gpios,
238         .col_gpios      = col_gpios,
239 };
240
241 static struct platform_device h4_kp_device = {
242         .name           = "omap-keypad",
243         .id             = -1,
244         .dev            = {
245                 .platform_data = &h4_kp_data,
246         },
247 };
248
249 static struct platform_device h4_lcd_device = {
250         .name           = "lcd_h4",
251         .id             = -1,
252 };
253
254 static struct platform_device *h4_devices[] __initdata = {
255         &h4_flash_device,
256         &h4_irda_device,
257         &h4_kp_device,
258         &h4_lcd_device,
259 };
260
261 /* 2420 Sysboot setup (2430 is different) */
262 static u32 get_sysboot_value(void)
263 {
264         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
265                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
266                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
267                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
268 }
269
270 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
271  *
272  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
273  *  correctly.  The macro needs to look at production_id not just hawkeye.
274  */
275 static u32 is_gpmc_muxed(void)
276 {
277         u32 mux;
278         mux = get_sysboot_value();
279         if ((mux & 0xF) == 0xd)
280                 return 1;       /* NAND config (could be either) */
281         if (mux & 0x2)          /* if mux'ed */
282                 return 1;
283         else
284                 return 0;
285 }
286
287 static inline void __init h4_init_debug(void)
288 {
289         int eth_cs;
290         unsigned long cs_mem_base;
291         unsigned int muxed, rate;
292         struct clk *gpmc_fck;
293
294         eth_cs  = H4_SMC91X_CS;
295
296         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
297         if (IS_ERR(gpmc_fck)) {
298                 WARN_ON(1);
299                 return;
300         }
301
302         clk_enable(gpmc_fck);
303         rate = clk_get_rate(gpmc_fck);
304         clk_disable(gpmc_fck);
305         clk_put(gpmc_fck);
306
307         if (is_gpmc_muxed())
308                 muxed = 0x200;
309         else
310                 muxed = 0;
311
312         /* Make sure CS1 timings are correct */
313         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
314                           0x00011000 | muxed);
315
316         if (rate >= 160000000) {
317                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
318                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
319                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
320                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
321                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
322         } else if (rate >= 130000000) {
323                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
324                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
325                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
326                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
327                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
328         } else {/* rate = 100000000 */
329                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
330                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
331                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
332                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
333                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
334         }
335
336         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
337                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
338                 goto out;
339         }
340
341         udelay(100);
342
343         omap_cfg_reg(M15_24XX_GPIO92);
344         if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
345                 gpmc_cs_free(eth_cs);
346
347 out:
348         clk_disable(gpmc_fck);
349         clk_put(gpmc_fck);
350 }
351
352 static void __init h4_init_flash(void)
353 {
354         unsigned long base;
355
356         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
357                 printk("Can't request GPMC CS for flash\n");
358                 return;
359         }
360         h4_flash_resource.start = base;
361         h4_flash_resource.end   = base + SZ_64M - 1;
362 }
363
364 static void __init omap_h4_init_irq(void)
365 {
366         omap2_init_common_hw();
367         omap_init_irq();
368         omap_gpio_init();
369         h4_init_flash();
370 }
371
372 static struct omap_uart_config h4_uart_config __initdata = {
373         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
374 };
375
376 static struct omap_lcd_config h4_lcd_config __initdata = {
377         .ctrl_name      = "internal",
378 };
379
380 static struct omap_board_config_kernel h4_config[] = {
381         { OMAP_TAG_UART,        &h4_uart_config },
382         { OMAP_TAG_LCD,         &h4_lcd_config },
383 };
384
385 static struct at24_platform_data m24c01 = {
386         .byte_len       = SZ_1K / 8,
387         .page_size      = 16,
388 };
389
390 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
391         {
392                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
393                 .irq            = OMAP_GPIO_IRQ(125),
394         },
395         {       /* EEPROM on mainboard */
396                 I2C_BOARD_INFO("24c01", 0x52),
397                 .platform_data  = &m24c01,
398         },
399         {       /* EEPROM on cpu card */
400                 I2C_BOARD_INFO("24c01", 0x57),
401                 .platform_data  = &m24c01,
402         },
403 };
404
405 static void __init omap_h4_init(void)
406 {
407         /*
408          * Make sure the serial ports are muxed on at this point.
409          * You have to mux them off in device drivers later on
410          * if not needed.
411          */
412 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
413         omap_cfg_reg(K15_24XX_UART3_TX);
414         omap_cfg_reg(K14_24XX_UART3_RX);
415 #endif
416
417 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
418         if (omap_has_menelaus()) {
419                 row_gpios[5] = 0;
420                 col_gpios[2] = 15;
421                 col_gpios[6] = 18;
422         }
423 #endif
424
425         i2c_register_board_info(1, h4_i2c_board_info,
426                         ARRAY_SIZE(h4_i2c_board_info));
427
428         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
429         omap_board_config = h4_config;
430         omap_board_config_size = ARRAY_SIZE(h4_config);
431         omap_serial_init();
432 }
433
434 static void __init omap_h4_map_io(void)
435 {
436         omap2_set_globals_242x();
437         omap2_map_common_io();
438 }
439
440 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
441         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
442         .phys_io        = 0x48000000,
443         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
444         .boot_params    = 0x80000100,
445         .map_io         = omap_h4_map_io,
446         .init_irq       = omap_h4_init_irq,
447         .init_machine   = omap_h4_init,
448         .timer          = &omap_timer,
449 MACHINE_END