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 <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 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 static struct omap_kp_platform_data h4_kp_data = {
 140         .rows           = 6,
 141         .cols           = 7,
 142         .keymap         = h4_keymap,
 143         .keymapsize     = ARRAY_SIZE(h4_keymap),
 144         .rep            = 1,
 145         .row_gpios      = row_gpios,
 146         .col_gpios      = col_gpios,
 147 };
 148
 149 static struct platform_device h4_kp_device = {
 150         .name           = "omap-keypad",
 151         .id             = -1,
 152         .dev            = {
 153                 .platform_data = &h4_kp_data,
 154         },
 155 };
 156
 157 static struct platform_device h4_lcd_device = {
 158         .name           = "lcd_h4",
 159         .id             = -1,
 160 };
 161
 162 static struct platform_device *h4_devices[] __initdata = {
 163         &h4_flash_device,
 164         &h4_kp_device,
 165         &h4_lcd_device,
 166 };
 167
 168 /* 2420 Sysboot setup (2430 is different) */
 169 static u32 get_sysboot_value(void)
 170 {
 171         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 172                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 173                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 174                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 175 }
 176
 177 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 178  *
 179  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 180  *  correctly.  The macro needs to look at production_id not just hawkeye.
 181  */
 182 static u32 is_gpmc_muxed(void)
 183 {
 184         u32 mux;
 185         mux = get_sysboot_value();
 186         if ((mux & 0xF) == 0xd)
 187                 return 1;       /* NAND config (could be either) */
 188         if (mux & 0x2)          /* if mux'ed */
 189                 return 1;
 190         else
 191                 return 0;
 192 }
 193
 194 static inline void __init h4_init_debug(void)
 195 {
 196         int eth_cs;
 197         unsigned long cs_mem_base;
 198         unsigned int muxed, rate;
 199         struct clk *gpmc_fck;
 200
 201         eth_cs  = H4_SMC91X_CS;
 202
 203         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 204         if (IS_ERR(gpmc_fck)) {
 205                 WARN_ON(1);
 206                 return;
 207         }
 208
 209         clk_enable(gpmc_fck);
 210         rate = clk_get_rate(gpmc_fck);
 211         clk_disable(gpmc_fck);
 212         clk_put(gpmc_fck);
 213
 214         if (is_gpmc_muxed())
 215                 muxed = 0x200;
 216         else
 217                 muxed = 0;
 218
 219         /* Make sure CS1 timings are correct */
 220         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 221                           0x00011000 | muxed);
 222
 223         if (rate >= 160000000) {
 224                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 229         } else if (rate >= 130000000) {
 230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 235         } else {/* rate = 100000000 */
 236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 238                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 240                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 241         }
 242
 243         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 244                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 245                 goto out;
 246         }
 247
 248         udelay(100);
 249
 250         omap_cfg_reg(M15_24XX_GPIO92);
 251         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 252                 gpmc_cs_free(eth_cs);
 253
 254 out:
 255         clk_disable(gpmc_fck);
 256         clk_put(gpmc_fck);
 257 }
 258
 259 static void __init h4_init_flash(void)
 260 {
 261         unsigned long base;
 262
 263         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 264                 printk("Can't request GPMC CS for flash\n");
 265                 return;
 266         }
 267         h4_flash_resource.start = base;
 268         h4_flash_resource.end   = base + SZ_64M - 1;
 269 }
 270
 271 static struct omap_lcd_config h4_lcd_config __initdata = {
 272         .ctrl_name      = "internal",
 273 };
 274
 275 static struct omap_usb_config h4_usb_config __initdata = {
 276 #ifdef  CONFIG_MACH_OMAP2_H4_USB1
 277         /* NOTE:  usb1 could also be used with 3 wire signaling */
 278         .pins[1]        = 4,
 279 #endif
 280
 281 #ifdef  CONFIG_MACH_OMAP_H4_OTG
 282         /* S1.10 ON -- USB OTG port
 283          * usb0 switched to Mini-AB port and isp1301 transceiver;
 284          * S2.POS3 = OFF, S2.POS4 = ON ... to allow battery charging
 285          */
 286         .otg            = 1,
 287         .pins[0]        = 4,
 288 #ifdef  CONFIG_USB_GADGET_OMAP
 289         /* use OTG cable, or standard A-to-MiniB */
 290         .hmc_mode       = 0x14, /* 0:dev/otg 1:host 2:disable */
 291 #elif   defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 292         /* use OTG cable, or NONSTANDARD (B-to-MiniB) */
 293         .hmc_mode       = 0x11, /* 0:host 1:host 2:disable */
 294 #endif  /* XX */
 295
 296 #else
 297         /* S1.10 OFF -- usb "download port"
 298          * usb0 switched to Mini-B port and isp1105 transceiver;
 299          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
 300          */
 301         .register_dev   = 1,
 302         .pins[0]        = 3,
 303 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
 304         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
 305 #endif
 306 };
 307
 308 static struct omap_board_config_kernel h4_config[] = {
 309         { OMAP_TAG_LCD,         &h4_lcd_config },
 310 };
 311
 312 static void __init omap_h4_init_irq(void)
 313 {
 314         omap_board_config = h4_config;
 315         omap_board_config_size = ARRAY_SIZE(h4_config);
 316         omap2_init_common_hw(NULL, NULL);
 317         omap_init_irq();
 318         omap_gpio_init();
 319         h4_init_flash();
 320 }
 321
 322 static struct at24_platform_data m24c01 = {
 323         .byte_len       = SZ_1K / 8,
 324         .page_size      = 16,
 325 };
 326
 327 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 328         {
 329                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 330                 .irq            = OMAP_GPIO_IRQ(125),
 331         },
 332         {       /* EEPROM on mainboard */
 333                 I2C_BOARD_INFO("24c01", 0x52),
 334                 .platform_data  = &m24c01,
 335         },
 336         {       /* EEPROM on cpu card */
 337                 I2C_BOARD_INFO("24c01", 0x57),
 338                 .platform_data  = &m24c01,
 339         },
 340 };
 341
 342 static void __init omap_h4_init(void)
 343 {
 344         /*
 345          * Make sure the serial ports are muxed on at this point.
 346          * You have to mux them off in device drivers later on
 347          * if not needed.
 348          */
 349 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
 350         omap_cfg_reg(K15_24XX_UART3_TX);
 351         omap_cfg_reg(K14_24XX_UART3_RX);
 352 #endif
 353
 354 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 355         if (omap_has_menelaus()) {
 356                 row_gpios[5] = 0;
 357                 col_gpios[2] = 15;
 358                 col_gpios[6] = 18;
 359         }
 360 #endif
 361
 362         i2c_register_board_info(1, h4_i2c_board_info,
 363                         ARRAY_SIZE(h4_i2c_board_info));
 364
 365         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 366         omap_usb_init(&h4_usb_config);
 367         omap_serial_init();
 368 }
 369
 370 static void __init omap_h4_map_io(void)
 371 {
 372         omap2_set_globals_242x();
 373         omap2_map_common_io();
 374 }
 375
 376 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 377         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 378         .phys_io        = 0x48000000,
 379         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 380         .boot_params    = 0x80000100,
 381         .map_io         = omap_h4_map_io,
 382         .init_irq       = omap_h4_init_irq,
 383         .init_machine   = omap_h4_init,
 384         .timer          = &omap_timer,
 385 MACHINE_END