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 #include <linux/gpio.h>
  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/usb.h>
  35 #include <plat/board.h>
  36 #include <plat/common.h>
  37 #include <plat/keypad.h>
  38 #include <plat/menelaus.h>
  39 #include <plat/dma.h>
  40 #include <plat/gpmc.h>
  41
  42 #include "mux.h"
  43 #include "control.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 const unsigned int h4_keymap[] = {
  54         KEY(0, 0, KEY_LEFT),
  55         KEY(1, 0, KEY_RIGHT),
  56         KEY(2, 0, KEY_A),
  57         KEY(3, 0, KEY_B),
  58         KEY(4, 0, KEY_C),
  59         KEY(0, 1, KEY_DOWN),
  60         KEY(1, 1, KEY_UP),
  61         KEY(2, 1, KEY_E),
  62         KEY(3, 1, KEY_F),
  63         KEY(4, 1, KEY_G),
  64         KEY(0, 2, KEY_ENTER),
  65         KEY(1, 2, KEY_I),
  66         KEY(2, 2, KEY_J),
  67         KEY(3, 2, KEY_K),
  68         KEY(4, 2, KEY_3),
  69         KEY(0, 3, KEY_M),
  70         KEY(1, 3, KEY_N),
  71         KEY(2, 3, KEY_O),
  72         KEY(3, 3, KEY_P),
  73         KEY(4, 3, KEY_Q),
  74         KEY(0, 4, KEY_R),
  75         KEY(1, 4, KEY_4),
  76         KEY(2, 4, KEY_T),
  77         KEY(3, 4, KEY_U),
  78         KEY(4, 4, KEY_ENTER),
  79         KEY(0, 5, KEY_V),
  80         KEY(1, 5, KEY_W),
  81         KEY(2, 5, KEY_L),
  82         KEY(3, 5, KEY_S),
  83         KEY(4, 5, KEY_ENTER),
  84 };
  85
  86 static struct mtd_partition h4_partitions[] = {
  87         /* bootloader (U-Boot, etc) in first sector */
  88         {
  89               .name             = "bootloader",
  90               .offset           = 0,
  91               .size             = SZ_128K,
  92               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  93         },
  94         /* bootloader params in the next sector */
  95         {
  96               .name             = "params",
  97               .offset           = MTDPART_OFS_APPEND,
  98               .size             = SZ_128K,
  99               .mask_flags       = 0,
 100         },
 101         /* kernel */
 102         {
 103               .name             = "kernel",
 104               .offset           = MTDPART_OFS_APPEND,
 105               .size             = SZ_2M,
 106               .mask_flags       = 0
 107         },
 108         /* file system */
 109         {
 110               .name             = "filesystem",
 111               .offset           = MTDPART_OFS_APPEND,
 112               .size             = MTDPART_SIZ_FULL,
 113               .mask_flags       = 0
 114         }
 115 };
 116
 117 static struct physmap_flash_data h4_flash_data = {
 118         .width          = 2,
 119         .parts          = h4_partitions,
 120         .nr_parts       = ARRAY_SIZE(h4_partitions),
 121 };
 122
 123 static struct resource h4_flash_resource = {
 124         .flags          = IORESOURCE_MEM,
 125 };
 126
 127 static struct platform_device h4_flash_device = {
 128         .name           = "physmap-flash",
 129         .id             = 0,
 130         .dev            = {
 131                 .platform_data  = &h4_flash_data,
 132         },
 133         .num_resources  = 1,
 134         .resource       = &h4_flash_resource,
 135 };
 136
 137 static const struct matrix_keymap_data h4_keymap_data = {
 138         .keymap         = h4_keymap,
 139         .keymap_size    = ARRAY_SIZE(h4_keymap),
 140 };
 141
 142 static struct omap_kp_platform_data h4_kp_data = {
 143         .rows           = 6,
 144         .cols           = 7,
 145         .keymap_data    = &h4_keymap_data,
 146         .rep            = true,
 147         .row_gpios      = row_gpios,
 148         .col_gpios      = col_gpios,
 149 };
 150
 151 static struct platform_device h4_kp_device = {
 152         .name           = "omap-keypad",
 153         .id             = -1,
 154         .dev            = {
 155                 .platform_data = &h4_kp_data,
 156         },
 157 };
 158
 159 static struct platform_device h4_lcd_device = {
 160         .name           = "lcd_h4",
 161         .id             = -1,
 162 };
 163
 164 static struct platform_device *h4_devices[] __initdata = {
 165         &h4_flash_device,
 166         &h4_kp_device,
 167         &h4_lcd_device,
 168 };
 169
 170 /* 2420 Sysboot setup (2430 is different) */
 171 static u32 get_sysboot_value(void)
 172 {
 173         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 174                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 175                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 176                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 177 }
 178
 179 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 180  *
 181  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 182  *  correctly.  The macro needs to look at production_id not just hawkeye.
 183  */
 184 static u32 is_gpmc_muxed(void)
 185 {
 186         u32 mux;
 187         mux = get_sysboot_value();
 188         if ((mux & 0xF) == 0xd)
 189                 return 1;       /* NAND config (could be either) */
 190         if (mux & 0x2)          /* if mux'ed */
 191                 return 1;
 192         else
 193                 return 0;
 194 }
 195
 196 static inline void __init h4_init_debug(void)
 197 {
 198         int eth_cs;
 199         unsigned long cs_mem_base;
 200         unsigned int muxed, rate;
 201         struct clk *gpmc_fck;
 202
 203         eth_cs  = H4_SMC91X_CS;
 204
 205         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 206         if (IS_ERR(gpmc_fck)) {
 207                 WARN_ON(1);
 208                 return;
 209         }
 210
 211         clk_enable(gpmc_fck);
 212         rate = clk_get_rate(gpmc_fck);
 213         clk_disable(gpmc_fck);
 214         clk_put(gpmc_fck);
 215
 216         if (is_gpmc_muxed())
 217                 muxed = 0x200;
 218         else
 219                 muxed = 0;
 220
 221         /* Make sure CS1 timings are correct */
 222         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 223                           0x00011000 | muxed);
 224
 225         if (rate >= 160000000) {
 226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 231         } else if (rate >= 130000000) {
 232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 237         } else {/* rate = 100000000 */
 238                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 240                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 241                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 242                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 243         }
 244
 245         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 246                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 247                 goto out;
 248         }
 249
 250         udelay(100);
 251
 252         omap_mux_init_gpio(92, 0);
 253         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 254                 gpmc_cs_free(eth_cs);
 255
 256 out:
 257         clk_disable(gpmc_fck);
 258         clk_put(gpmc_fck);
 259 }
 260
 261 static void __init h4_init_flash(void)
 262 {
 263         unsigned long base;
 264
 265         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 266                 printk("Can't request GPMC CS for flash\n");
 267                 return;
 268         }
 269         h4_flash_resource.start = base;
 270         h4_flash_resource.end   = base + SZ_64M - 1;
 271 }
 272
 273 static struct omap_lcd_config h4_lcd_config __initdata = {
 274         .ctrl_name      = "internal",
 275 };
 276
 277 static struct omap_usb_config h4_usb_config __initdata = {
 278         /* S1.10 OFF -- usb "download port"
 279          * usb0 switched to Mini-B port and isp1105 transceiver;
 280          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
 281          */
 282         .register_dev   = 1,
 283         .pins[0]        = 3,
 284 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
 285         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
 286 };
 287
 288 static struct omap_board_config_kernel h4_config[] __initdata = {
 289         { OMAP_TAG_LCD,         &h4_lcd_config },
 290 };
 291
 292 static void __init omap_h4_init_early(void)
 293 {
 294         omap2_init_common_infrastructure();
 295         omap2_init_common_devices(NULL, NULL);
 296 }
 297
 298 static void __init omap_h4_init_irq(void)
 299 {
 300         omap2_init_irq();
 301 }
 302
 303 static struct at24_platform_data m24c01 = {
 304         .byte_len       = SZ_1K / 8,
 305         .page_size      = 16,
 306 };
 307
 308 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 309         {
 310                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 311                 .irq            = OMAP_GPIO_IRQ(125),
 312         },
 313         {       /* EEPROM on mainboard */
 314                 I2C_BOARD_INFO("24c01", 0x52),
 315                 .platform_data  = &m24c01,
 316         },
 317         {       /* EEPROM on cpu card */
 318                 I2C_BOARD_INFO("24c01", 0x57),
 319                 .platform_data  = &m24c01,
 320         },
 321 };
 322
 323 #ifdef CONFIG_OMAP_MUX
 324 static struct omap_board_mux board_mux[] __initdata = {
 325         { .reg_offset = OMAP_MUX_TERMINATOR },
 326 };
 327 #endif
 328
 329 static void __init omap_h4_init(void)
 330 {
 331         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 332
 333         omap_board_config = h4_config;
 334         omap_board_config_size = ARRAY_SIZE(h4_config);
 335
 336         /*
 337          * Make sure the serial ports are muxed on at this point.
 338          * You have to mux them off in device drivers later on
 339          * if not needed.
 340          */
 341
 342 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 343         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 344         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 345         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 346         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 347         if (omap_has_menelaus()) {
 348                 omap_mux_init_signal("sdrc_a14.gpio0",
 349                         OMAP_PULL_ENA | OMAP_PULL_UP);
 350                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 351                 omap_mux_init_signal("gpio_98", 0);
 352                 row_gpios[5] = 0;
 353                 col_gpios[2] = 15;
 354                 col_gpios[6] = 18;
 355         } else {
 356                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 357                 omap_mux_init_signal("gpio_100", 0);
 358                 omap_mux_init_signal("gpio_98", 0);
 359         }
 360         omap_mux_init_signal("gpio_90", 0);
 361         omap_mux_init_signal("gpio_91", 0);
 362         omap_mux_init_signal("gpio_36", 0);
 363         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 364         omap_mux_init_signal("gpio_97", 0);
 365 #endif
 366
 367         i2c_register_board_info(1, h4_i2c_board_info,
 368                         ARRAY_SIZE(h4_i2c_board_info));
 369
 370         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 371         omap2_usbfs_init(&h4_usb_config);
 372         omap_serial_init();
 373         h4_init_flash();
 374 }
 375
 376 static void __init omap_h4_map_io(void)
 377 {
 378         omap2_set_globals_242x();
 379         omap242x_map_common_io();
 380 }
 381
 382 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 383         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 384         .atag_offset    = 0x100,
 385         .reserve        = omap_reserve,
 386         .map_io         = omap_h4_map_io,
 387         .init_early     = omap_h4_init_early,
 388         .init_irq       = omap_h4_init_irq,
 389         .init_machine   = omap_h4_init,
 390         .timer          = &omap2_timer,
 391 MACHINE_END