Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
[pandora-kernel.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/mtd/physmap.h>
20 #include <linux/delay.h>
21 #include <linux/workqueue.h>
22 #include <linux/i2c.h>
23 #include <linux/i2c/at24.h>
24 #include <linux/input.h>
25 #include <linux/err.h>
26 #include <linux/clk.h>
27 #include <linux/io.h>
28
29 #include <mach/hardware.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <plat/control.h>
35 #include <mach/gpio.h>
36 #include <plat/mux.h>
37 #include <plat/usb.h>
38 #include <plat/board.h>
39 #include <plat/common.h>
40 #include <plat/keypad.h>
41 #include <plat/menelaus.h>
42 #include <plat/dma.h>
43 #include <plat/gpmc.h>
44
45 #define H4_FLASH_CS     0
46 #define H4_SMC91X_CS    1
47
48 #define H4_ETHR_GPIO_IRQ                92
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 physmap_flash_data h4_flash_data = {
119         .width          = 2,
120         .parts          = h4_partitions,
121         .nr_parts       = ARRAY_SIZE(h4_partitions),
122 };
123
124 static struct resource h4_flash_resource = {
125         .flags          = IORESOURCE_MEM,
126 };
127
128 static struct platform_device h4_flash_device = {
129         .name           = "physmap-flash",
130         .id             = 0,
131         .dev            = {
132                 .platform_data  = &h4_flash_data,
133         },
134         .num_resources  = 1,
135         .resource       = &h4_flash_resource,
136 };
137
138 static struct omap_kp_platform_data h4_kp_data = {
139         .rows           = 6,
140         .cols           = 7,
141         .keymap         = h4_keymap,
142         .keymapsize     = ARRAY_SIZE(h4_keymap),
143         .rep            = 1,
144         .row_gpios      = row_gpios,
145         .col_gpios      = col_gpios,
146 };
147
148 static struct platform_device h4_kp_device = {
149         .name           = "omap-keypad",
150         .id             = -1,
151         .dev            = {
152                 .platform_data = &h4_kp_data,
153         },
154 };
155
156 static struct platform_device h4_lcd_device = {
157         .name           = "lcd_h4",
158         .id             = -1,
159 };
160
161 static struct platform_device *h4_devices[] __initdata = {
162         &h4_flash_device,
163         &h4_kp_device,
164         &h4_lcd_device,
165 };
166
167 /* 2420 Sysboot setup (2430 is different) */
168 static u32 get_sysboot_value(void)
169 {
170         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
171                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
172                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
173                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
174 }
175
176 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
177  *
178  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
179  *  correctly.  The macro needs to look at production_id not just hawkeye.
180  */
181 static u32 is_gpmc_muxed(void)
182 {
183         u32 mux;
184         mux = get_sysboot_value();
185         if ((mux & 0xF) == 0xd)
186                 return 1;       /* NAND config (could be either) */
187         if (mux & 0x2)          /* if mux'ed */
188                 return 1;
189         else
190                 return 0;
191 }
192
193 static inline void __init h4_init_debug(void)
194 {
195         int eth_cs;
196         unsigned long cs_mem_base;
197         unsigned int muxed, rate;
198         struct clk *gpmc_fck;
199
200         eth_cs  = H4_SMC91X_CS;
201
202         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
203         if (IS_ERR(gpmc_fck)) {
204                 WARN_ON(1);
205                 return;
206         }
207
208         clk_enable(gpmc_fck);
209         rate = clk_get_rate(gpmc_fck);
210         clk_disable(gpmc_fck);
211         clk_put(gpmc_fck);
212
213         if (is_gpmc_muxed())
214                 muxed = 0x200;
215         else
216                 muxed = 0;
217
218         /* Make sure CS1 timings are correct */
219         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
220                           0x00011000 | muxed);
221
222         if (rate >= 160000000) {
223                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
224                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
228         } else if (rate >= 130000000) {
229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
234         } else {/* rate = 100000000 */
235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
238                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
240         }
241
242         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
243                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
244                 goto out;
245         }
246
247         udelay(100);
248
249         omap_cfg_reg(M15_24XX_GPIO92);
250         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
251                 gpmc_cs_free(eth_cs);
252
253 out:
254         clk_disable(gpmc_fck);
255         clk_put(gpmc_fck);
256 }
257
258 static void __init h4_init_flash(void)
259 {
260         unsigned long base;
261
262         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
263                 printk("Can't request GPMC CS for flash\n");
264                 return;
265         }
266         h4_flash_resource.start = base;
267         h4_flash_resource.end   = base + SZ_64M - 1;
268 }
269
270 static struct omap_lcd_config h4_lcd_config __initdata = {
271         .ctrl_name      = "internal",
272 };
273
274 static struct omap_usb_config h4_usb_config __initdata = {
275 #ifdef  CONFIG_MACH_OMAP2_H4_USB1
276         /* NOTE:  usb1 could also be used with 3 wire signaling */
277         .pins[1]        = 4,
278 #endif
279
280 #ifdef  CONFIG_MACH_OMAP_H4_OTG
281         /* S1.10 ON -- USB OTG port
282          * usb0 switched to Mini-AB port and isp1301 transceiver;
283          * S2.POS3 = OFF, S2.POS4 = ON ... to allow battery charging
284          */
285         .otg            = 1,
286         .pins[0]        = 4,
287 #ifdef  CONFIG_USB_GADGET_OMAP
288         /* use OTG cable, or standard A-to-MiniB */
289         .hmc_mode       = 0x14, /* 0:dev/otg 1:host 2:disable */
290 #elif   defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
291         /* use OTG cable, or NONSTANDARD (B-to-MiniB) */
292         .hmc_mode       = 0x11, /* 0:host 1:host 2:disable */
293 #endif  /* XX */
294
295 #else
296         /* S1.10 OFF -- usb "download port"
297          * usb0 switched to Mini-B port and isp1105 transceiver;
298          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
299          */
300         .register_dev   = 1,
301         .pins[0]        = 3,
302 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
303         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
304 #endif
305 };
306
307 static struct omap_board_config_kernel h4_config[] = {
308         { OMAP_TAG_LCD,         &h4_lcd_config },
309 };
310
311 static void __init omap_h4_init_irq(void)
312 {
313         omap_board_config = h4_config;
314         omap_board_config_size = ARRAY_SIZE(h4_config);
315         omap2_init_common_hw(NULL, NULL);
316         omap_init_irq();
317         omap_gpio_init();
318         h4_init_flash();
319 }
320
321 static struct at24_platform_data m24c01 = {
322         .byte_len       = SZ_1K / 8,
323         .page_size      = 16,
324 };
325
326 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
327         {
328                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
329                 .irq            = OMAP_GPIO_IRQ(125),
330         },
331         {       /* EEPROM on mainboard */
332                 I2C_BOARD_INFO("24c01", 0x52),
333                 .platform_data  = &m24c01,
334         },
335         {       /* EEPROM on cpu card */
336                 I2C_BOARD_INFO("24c01", 0x57),
337                 .platform_data  = &m24c01,
338         },
339 };
340
341 static void __init omap_h4_init(void)
342 {
343         /*
344          * Make sure the serial ports are muxed on at this point.
345          * You have to mux them off in device drivers later on
346          * if not needed.
347          */
348 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
349         omap_cfg_reg(K15_24XX_UART3_TX);
350         omap_cfg_reg(K14_24XX_UART3_RX);
351 #endif
352
353 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
354         if (omap_has_menelaus()) {
355                 row_gpios[5] = 0;
356                 col_gpios[2] = 15;
357                 col_gpios[6] = 18;
358         }
359 #endif
360
361         i2c_register_board_info(1, h4_i2c_board_info,
362                         ARRAY_SIZE(h4_i2c_board_info));
363
364         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
365         omap_usb_init(&h4_usb_config);
366         omap_serial_init();
367 }
368
369 static void __init omap_h4_map_io(void)
370 {
371         omap2_set_globals_242x();
372         omap242x_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    = ((0xfa000000) >> 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