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 #include "mux.h"
  46
  47 #define H4_FLASH_CS     0
  48 #define H4_SMC91X_CS    1
  49
  50 #define H4_ETHR_GPIO_IRQ                92
  51
  52 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
  53 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
  54
  55 static int h4_keymap[] = {
  56         KEY(0, 0, KEY_LEFT),
  57         KEY(0, 1, KEY_RIGHT),
  58         KEY(0, 2, KEY_A),
  59         KEY(0, 3, KEY_B),
  60         KEY(0, 4, KEY_C),
  61         KEY(1, 0, KEY_DOWN),
  62         KEY(1, 1, KEY_UP),
  63         KEY(1, 2, KEY_E),
  64         KEY(1, 3, KEY_F),
  65         KEY(1, 4, KEY_G),
  66         KEY(2, 0, KEY_ENTER),
  67         KEY(2, 1, KEY_I),
  68         KEY(2, 2, KEY_J),
  69         KEY(2, 3, KEY_K),
  70         KEY(2, 4, KEY_3),
  71         KEY(3, 0, KEY_M),
  72         KEY(3, 1, KEY_N),
  73         KEY(3, 2, KEY_O),
  74         KEY(3, 3, KEY_P),
  75         KEY(3, 4, KEY_Q),
  76         KEY(4, 0, KEY_R),
  77         KEY(4, 1, KEY_4),
  78         KEY(4, 2, KEY_T),
  79         KEY(4, 3, KEY_U),
  80         KEY(4, 4, KEY_ENTER),
  81         KEY(5, 0, KEY_V),
  82         KEY(5, 1, KEY_W),
  83         KEY(5, 2, KEY_L),
  84         KEY(5, 3, KEY_S),
  85         KEY(5, 4, KEY_ENTER),
  86         0
  87 };
  88
  89 static struct mtd_partition h4_partitions[] = {
  90         /* bootloader (U-Boot, etc) in first sector */
  91         {
  92               .name             = "bootloader",
  93               .offset           = 0,
  94               .size             = SZ_128K,
  95               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  96         },
  97         /* bootloader params in the next sector */
  98         {
  99               .name             = "params",
 100               .offset           = MTDPART_OFS_APPEND,
 101               .size             = SZ_128K,
 102               .mask_flags       = 0,
 103         },
 104         /* kernel */
 105         {
 106               .name             = "kernel",
 107               .offset           = MTDPART_OFS_APPEND,
 108               .size             = SZ_2M,
 109               .mask_flags       = 0
 110         },
 111         /* file system */
 112         {
 113               .name             = "filesystem",
 114               .offset           = MTDPART_OFS_APPEND,
 115               .size             = MTDPART_SIZ_FULL,
 116               .mask_flags       = 0
 117         }
 118 };
 119
 120 static struct physmap_flash_data h4_flash_data = {
 121         .width          = 2,
 122         .parts          = h4_partitions,
 123         .nr_parts       = ARRAY_SIZE(h4_partitions),
 124 };
 125
 126 static struct resource h4_flash_resource = {
 127         .flags          = IORESOURCE_MEM,
 128 };
 129
 130 static struct platform_device h4_flash_device = {
 131         .name           = "physmap-flash",
 132         .id             = 0,
 133         .dev            = {
 134                 .platform_data  = &h4_flash_data,
 135         },
 136         .num_resources  = 1,
 137         .resource       = &h4_flash_resource,
 138 };
 139
 140 static struct omap_kp_platform_data h4_kp_data = {
 141         .rows           = 6,
 142         .cols           = 7,
 143         .keymap         = h4_keymap,
 144         .keymapsize     = ARRAY_SIZE(h4_keymap),
 145         .rep            = 1,
 146         .row_gpios      = row_gpios,
 147         .col_gpios      = col_gpios,
 148 };
 149
 150 static struct platform_device h4_kp_device = {
 151         .name           = "omap-keypad",
 152         .id             = -1,
 153         .dev            = {
 154                 .platform_data = &h4_kp_data,
 155         },
 156 };
 157
 158 static struct platform_device h4_lcd_device = {
 159         .name           = "lcd_h4",
 160         .id             = -1,
 161 };
 162
 163 static struct platform_device *h4_devices[] __initdata = {
 164         &h4_flash_device,
 165         &h4_kp_device,
 166         &h4_lcd_device,
 167 };
 168
 169 /* 2420 Sysboot setup (2430 is different) */
 170 static u32 get_sysboot_value(void)
 171 {
 172         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 173                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 174                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 175                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 176 }
 177
 178 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 179  *
 180  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 181  *  correctly.  The macro needs to look at production_id not just hawkeye.
 182  */
 183 static u32 is_gpmc_muxed(void)
 184 {
 185         u32 mux;
 186         mux = get_sysboot_value();
 187         if ((mux & 0xF) == 0xd)
 188                 return 1;       /* NAND config (could be either) */
 189         if (mux & 0x2)          /* if mux'ed */
 190                 return 1;
 191         else
 192                 return 0;
 193 }
 194
 195 static inline void __init h4_init_debug(void)
 196 {
 197         int eth_cs;
 198         unsigned long cs_mem_base;
 199         unsigned int muxed, rate;
 200         struct clk *gpmc_fck;
 201
 202         eth_cs  = H4_SMC91X_CS;
 203
 204         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 205         if (IS_ERR(gpmc_fck)) {
 206                 WARN_ON(1);
 207                 return;
 208         }
 209
 210         clk_enable(gpmc_fck);
 211         rate = clk_get_rate(gpmc_fck);
 212         clk_disable(gpmc_fck);
 213         clk_put(gpmc_fck);
 214
 215         if (is_gpmc_muxed())
 216                 muxed = 0x200;
 217         else
 218                 muxed = 0;
 219
 220         /* Make sure CS1 timings are correct */
 221         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 222                           0x00011000 | muxed);
 223
 224         if (rate >= 160000000) {
 225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 230         } else if (rate >= 130000000) {
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 236         } else {/* rate = 100000000 */
 237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 238                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 240                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 241                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 242         }
 243
 244         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 245                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 246                 goto out;
 247         }
 248
 249         udelay(100);
 250
 251         omap_cfg_reg(M15_24XX_GPIO92);
 252         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 253                 gpmc_cs_free(eth_cs);
 254
 255 out:
 256         clk_disable(gpmc_fck);
 257         clk_put(gpmc_fck);
 258 }
 259
 260 static void __init h4_init_flash(void)
 261 {
 262         unsigned long base;
 263
 264         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 265                 printk("Can't request GPMC CS for flash\n");
 266                 return;
 267         }
 268         h4_flash_resource.start = base;
 269         h4_flash_resource.end   = base + SZ_64M - 1;
 270 }
 271
 272 static struct omap_lcd_config h4_lcd_config __initdata = {
 273         .ctrl_name      = "internal",
 274 };
 275
 276 static struct omap_usb_config h4_usb_config __initdata = {
 277 #ifdef  CONFIG_MACH_OMAP2_H4_USB1
 278         /* NOTE:  usb1 could also be used with 3 wire signaling */
 279         .pins[1]        = 4,
 280 #endif
 281
 282 #ifdef  CONFIG_MACH_OMAP_H4_OTG
 283         /* S1.10 ON -- USB OTG port
 284          * usb0 switched to Mini-AB port and isp1301 transceiver;
 285          * S2.POS3 = OFF, S2.POS4 = ON ... to allow battery charging
 286          */
 287         .otg            = 1,
 288         .pins[0]        = 4,
 289 #ifdef  CONFIG_USB_GADGET_OMAP
 290         /* use OTG cable, or standard A-to-MiniB */
 291         .hmc_mode       = 0x14, /* 0:dev/otg 1:host 2:disable */
 292 #elif   defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 293         /* use OTG cable, or NONSTANDARD (B-to-MiniB) */
 294         .hmc_mode       = 0x11, /* 0:host 1:host 2:disable */
 295 #endif  /* XX */
 296
 297 #else
 298         /* S1.10 OFF -- usb "download port"
 299          * usb0 switched to Mini-B port and isp1105 transceiver;
 300          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
 301          */
 302         .register_dev   = 1,
 303         .pins[0]        = 3,
 304 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
 305         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
 306 #endif
 307 };
 308
 309 static struct omap_board_config_kernel h4_config[] = {
 310         { OMAP_TAG_LCD,         &h4_lcd_config },
 311 };
 312
 313 static void __init omap_h4_init_irq(void)
 314 {
 315         omap_board_config = h4_config;
 316         omap_board_config_size = ARRAY_SIZE(h4_config);
 317         omap2_init_common_hw(NULL, NULL);
 318         omap_init_irq();
 319         omap_gpio_init();
 320         h4_init_flash();
 321 }
 322
 323 static struct at24_platform_data m24c01 = {
 324         .byte_len       = SZ_1K / 8,
 325         .page_size      = 16,
 326 };
 327
 328 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 329         {
 330                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 331                 .irq            = OMAP_GPIO_IRQ(125),
 332         },
 333         {       /* EEPROM on mainboard */
 334                 I2C_BOARD_INFO("24c01", 0x52),
 335                 .platform_data  = &m24c01,
 336         },
 337         {       /* EEPROM on cpu card */
 338                 I2C_BOARD_INFO("24c01", 0x57),
 339                 .platform_data  = &m24c01,
 340         },
 341 };
 342
 343 #ifdef CONFIG_OMAP_MUX
 344 static struct omap_board_mux board_mux[] __initdata = {
 345         { .reg_offset = OMAP_MUX_TERMINATOR },
 346 };
 347 #else
 348 #define board_mux       NULL
 349 #endif
 350
 351 static void __init omap_h4_init(void)
 352 {
 353         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 354
 355         /*
 356          * Make sure the serial ports are muxed on at this point.
 357          * You have to mux them off in device drivers later on
 358          * if not needed.
 359          */
 360 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
 361         omap_cfg_reg(K15_24XX_UART3_TX);
 362         omap_cfg_reg(K14_24XX_UART3_RX);
 363 #endif
 364
 365 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 366         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 367         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 368         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 369         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 370         if (omap_has_menelaus()) {
 371                 omap_mux_init_signal("sdrc_a14.gpio0",
 372                         OMAP_PULL_ENA | OMAP_PULL_UP);
 373                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 374                 omap_mux_init_signal("gpio_98", 0);
 375                 row_gpios[5] = 0;
 376                 col_gpios[2] = 15;
 377                 col_gpios[6] = 18;
 378         } else {
 379                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 380                 omap_mux_init_signal("gpio_100", 0);
 381                 omap_mux_init_signal("gpio_98", 0);
 382         }
 383         omap_mux_init_signal("gpio_90", 0);
 384         omap_mux_init_signal("gpio_91", 0);
 385         omap_mux_init_signal("gpio_36", 0);
 386         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 387         omap_mux_init_signal("gpio_97", 0);
 388 #endif
 389
 390         i2c_register_board_info(1, h4_i2c_board_info,
 391                         ARRAY_SIZE(h4_i2c_board_info));
 392
 393         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 394         omap2_usbfs_init(&h4_usb_config);
 395         omap_serial_init();
 396 }
 397
 398 static void __init omap_h4_map_io(void)
 399 {
 400         omap2_set_globals_242x();
 401         omap242x_map_common_io();
 402 }
 403
 404 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 405         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 406         .phys_io        = 0x48000000,
 407         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 408         .boot_params    = 0x80000100,
 409         .map_io         = omap_h4_map_io,
 410         .init_irq       = omap_h4_init_irq,
 411         .init_machine   = omap_h4_init,
 412         .timer          = &omap_timer,
 413 MACHINE_END