Merge commit 'v2.6.39' into 20110526
[linux-2.6.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 <mach/gpio.h>
35 #include <plat/usb.h>
36 #include <plat/board.h>
37 #include <plat/common.h>
38 #include <plat/keypad.h>
39 #include <plat/menelaus.h>
40 #include <plat/dma.h>
41 #include <plat/gpmc.h>
42
43 #include "mux.h"
44 #include "control.h"
45
46 #define H4_FLASH_CS     0
47 #define H4_SMC91X_CS    1
48
49 #define H4_ETHR_GPIO_IRQ                92
50
51 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
52 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
53
54 static const unsigned int h4_keymap[] = {
55         KEY(0, 0, KEY_LEFT),
56         KEY(1, 0, KEY_RIGHT),
57         KEY(2, 0, KEY_A),
58         KEY(3, 0, KEY_B),
59         KEY(4, 0, KEY_C),
60         KEY(0, 1, KEY_DOWN),
61         KEY(1, 1, KEY_UP),
62         KEY(2, 1, KEY_E),
63         KEY(3, 1, KEY_F),
64         KEY(4, 1, KEY_G),
65         KEY(0, 2, KEY_ENTER),
66         KEY(1, 2, KEY_I),
67         KEY(2, 2, KEY_J),
68         KEY(3, 2, KEY_K),
69         KEY(4, 2, KEY_3),
70         KEY(0, 3, KEY_M),
71         KEY(1, 3, KEY_N),
72         KEY(2, 3, KEY_O),
73         KEY(3, 3, KEY_P),
74         KEY(4, 3, KEY_Q),
75         KEY(0, 4, KEY_R),
76         KEY(1, 4, KEY_4),
77         KEY(2, 4, KEY_T),
78         KEY(3, 4, KEY_U),
79         KEY(4, 4, KEY_ENTER),
80         KEY(0, 5, KEY_V),
81         KEY(1, 5, KEY_W),
82         KEY(2, 5, KEY_L),
83         KEY(3, 5, KEY_S),
84         KEY(4, 5, KEY_ENTER),
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 const struct matrix_keymap_data h4_keymap_data = {
139         .keymap         = h4_keymap,
140         .keymap_size    = ARRAY_SIZE(h4_keymap),
141 };
142
143 static struct omap_kp_platform_data h4_kp_data = {
144         .rows           = 6,
145         .cols           = 7,
146         .keymap_data    = &h4_keymap_data,
147         .rep            = true,
148         .row_gpios      = row_gpios,
149         .col_gpios      = col_gpios,
150 };
151
152 static struct platform_device h4_kp_device = {
153         .name           = "omap-keypad",
154         .id             = -1,
155         .dev            = {
156                 .platform_data = &h4_kp_data,
157         },
158 };
159
160 static struct platform_device h4_lcd_device = {
161         .name           = "lcd_h4",
162         .id             = -1,
163 };
164
165 static struct platform_device *h4_devices[] __initdata = {
166         &h4_flash_device,
167         &h4_kp_device,
168         &h4_lcd_device,
169 };
170
171 /* 2420 Sysboot setup (2430 is different) */
172 static u32 get_sysboot_value(void)
173 {
174         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
175                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
176                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
177                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
178 }
179
180 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
181  *
182  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
183  *  correctly.  The macro needs to look at production_id not just hawkeye.
184  */
185 static u32 is_gpmc_muxed(void)
186 {
187         u32 mux;
188         mux = get_sysboot_value();
189         if ((mux & 0xF) == 0xd)
190                 return 1;       /* NAND config (could be either) */
191         if (mux & 0x2)          /* if mux'ed */
192                 return 1;
193         else
194                 return 0;
195 }
196
197 static inline void __init h4_init_debug(void)
198 {
199         int eth_cs;
200         unsigned long cs_mem_base;
201         unsigned int muxed, rate;
202         struct clk *gpmc_fck;
203
204         eth_cs  = H4_SMC91X_CS;
205
206         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
207         if (IS_ERR(gpmc_fck)) {
208                 WARN_ON(1);
209                 return;
210         }
211
212         clk_enable(gpmc_fck);
213         rate = clk_get_rate(gpmc_fck);
214         clk_disable(gpmc_fck);
215         clk_put(gpmc_fck);
216
217         if (is_gpmc_muxed())
218                 muxed = 0x200;
219         else
220                 muxed = 0;
221
222         /* Make sure CS1 timings are correct */
223         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
224                           0x00011000 | muxed);
225
226         if (rate >= 160000000) {
227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
232         } else if (rate >= 130000000) {
233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
238         } else {/* rate = 100000000 */
239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
240                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
241                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
242                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
243                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
244         }
245
246         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
247                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
248                 goto out;
249         }
250
251         udelay(100);
252
253         omap_mux_init_gpio(92, 0);
254         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
255                 gpmc_cs_free(eth_cs);
256
257 out:
258         clk_disable(gpmc_fck);
259         clk_put(gpmc_fck);
260 }
261
262 static void __init h4_init_flash(void)
263 {
264         unsigned long base;
265
266         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
267                 printk("Can't request GPMC CS for flash\n");
268                 return;
269         }
270         h4_flash_resource.start = base;
271         h4_flash_resource.end   = base + SZ_64M - 1;
272 }
273
274 static struct omap_lcd_config h4_lcd_config __initdata = {
275         .ctrl_name      = "internal",
276 };
277
278 static struct omap_usb_config h4_usb_config __initdata = {
279         /* S1.10 OFF -- usb "download port"
280          * usb0 switched to Mini-B port and isp1105 transceiver;
281          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
282          */
283         .register_dev   = 1,
284         .pins[0]        = 3,
285 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
286         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
287 };
288
289 static struct omap_board_config_kernel h4_config[] __initdata = {
290         { OMAP_TAG_LCD,         &h4_lcd_config },
291 };
292
293 static void __init omap_h4_init_early(void)
294 {
295         omap2_init_common_infrastructure();
296         omap2_init_common_devices(NULL, NULL);
297 }
298
299 static void __init omap_h4_init_irq(void)
300 {
301         omap_init_irq();
302 }
303
304 static struct at24_platform_data m24c01 = {
305         .byte_len       = SZ_1K / 8,
306         .page_size      = 16,
307 };
308
309 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
310         {
311                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
312                 .irq            = OMAP_GPIO_IRQ(125),
313         },
314         {       /* EEPROM on mainboard */
315                 I2C_BOARD_INFO("24c01", 0x52),
316                 .platform_data  = &m24c01,
317         },
318         {       /* EEPROM on cpu card */
319                 I2C_BOARD_INFO("24c01", 0x57),
320                 .platform_data  = &m24c01,
321         },
322 };
323
324 #ifdef CONFIG_OMAP_MUX
325 static struct omap_board_mux board_mux[] __initdata = {
326         { .reg_offset = OMAP_MUX_TERMINATOR },
327 };
328 #endif
329
330 static void __init omap_h4_init(void)
331 {
332         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
333
334         omap_board_config = h4_config;
335         omap_board_config_size = ARRAY_SIZE(h4_config);
336
337         /*
338          * Make sure the serial ports are muxed on at this point.
339          * You have to mux them off in device drivers later on
340          * if not needed.
341          */
342
343 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
344         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
345         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
346         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
347         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
348         if (omap_has_menelaus()) {
349                 omap_mux_init_signal("sdrc_a14.gpio0",
350                         OMAP_PULL_ENA | OMAP_PULL_UP);
351                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
352                 omap_mux_init_signal("gpio_98", 0);
353                 row_gpios[5] = 0;
354                 col_gpios[2] = 15;
355                 col_gpios[6] = 18;
356         } else {
357                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
358                 omap_mux_init_signal("gpio_100", 0);
359                 omap_mux_init_signal("gpio_98", 0);
360         }
361         omap_mux_init_signal("gpio_90", 0);
362         omap_mux_init_signal("gpio_91", 0);
363         omap_mux_init_signal("gpio_36", 0);
364         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
365         omap_mux_init_signal("gpio_97", 0);
366 #endif
367
368         i2c_register_board_info(1, h4_i2c_board_info,
369                         ARRAY_SIZE(h4_i2c_board_info));
370
371         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
372         omap2_usbfs_init(&h4_usb_config);
373         omap_serial_init();
374         h4_init_flash();
375 }
376
377 static void __init omap_h4_map_io(void)
378 {
379         omap2_set_globals_242x();
380         omap242x_map_common_io();
381 }
382
383 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
384         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
385         .boot_params    = 0x80000100,
386         .reserve        = omap_reserve,
387         .map_io         = omap_h4_map_io,
388         .init_early     = omap_h4_init_early,
389         .init_irq       = omap_h4_init_irq,
390         .init_machine   = omap_h4_init,
391         .timer          = &omap_timer,
392 MACHINE_END