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 #include <linux/input/matrix_keypad.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <plat/usb.h>
  36 #include <plat/board.h>
  37 #include "common.h"
  38 #include <plat/menelaus.h>
  39 #include <plat/dma.h>
  40 #include <plat/gpmc.h>
  41
  42 #include <video/omapdss.h>
  43 #include <video/omap-panel-generic-dpi.h>
  44
  45 #include "mux.h"
  46 #include "control.h"
  47
  48 #define H4_FLASH_CS     0
  49 #define H4_SMC91X_CS    1
  50
  51 #define H4_ETHR_GPIO_IRQ                92
  52
  53 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
  54 static const uint32_t board_matrix_keys[] = {
  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 const struct matrix_keymap_data board_keymap_data = {
  88         .keymap                 = board_matrix_keys,
  89         .keymap_size            = ARRAY_SIZE(board_matrix_keys),
  90 };
  91
  92 static unsigned int board_keypad_row_gpios[] = {
  93         88, 89, 124, 11, 6, 96
  94 };
  95
  96 static unsigned int board_keypad_col_gpios[] = {
  97         90, 91, 100, 36, 12, 97, 98
  98 };
  99
 100 static struct matrix_keypad_platform_data board_keypad_platform_data = {
 101         .keymap_data    = &board_keymap_data,
 102         .row_gpios      = board_keypad_row_gpios,
 103         .num_row_gpios  = ARRAY_SIZE(board_keypad_row_gpios),
 104         .col_gpios      = board_keypad_col_gpios,
 105         .num_col_gpios  = ARRAY_SIZE(board_keypad_col_gpios),
 106         .active_low     = 1,
 107
 108         .debounce_ms            = 20,
 109         .col_scan_delay_us      = 5,
 110 };
 111
 112 static struct platform_device board_keyboard = {
 113         .name   = "matrix-keypad",
 114         .id     = -1,
 115         .dev    = {
 116                 .platform_data = &board_keypad_platform_data,
 117         },
 118 };
 119 static void __init board_mkp_init(void)
 120 {
 121         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 122         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 123         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 124         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 125         if (omap_has_menelaus()) {
 126                 omap_mux_init_signal("sdrc_a14.gpio0",
 127                         OMAP_PULL_ENA | OMAP_PULL_UP);
 128                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 129                 omap_mux_init_signal("gpio_98", 0);
 130                 board_keypad_row_gpios[5] = 0;
 131                 board_keypad_col_gpios[2] = 15;
 132                 board_keypad_col_gpios[6] = 18;
 133         } else {
 134                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 135                 omap_mux_init_signal("gpio_100", 0);
 136                 omap_mux_init_signal("gpio_98", 0);
 137         }
 138         omap_mux_init_signal("gpio_90", 0);
 139         omap_mux_init_signal("gpio_91", 0);
 140         omap_mux_init_signal("gpio_36", 0);
 141         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 142         omap_mux_init_signal("gpio_97", 0);
 143
 144         platform_device_register(&board_keyboard);
 145 }
 146 #else
 147 static inline void board_mkp_init(void)
 148 {
 149 }
 150 #endif
 151
 152 static struct mtd_partition h4_partitions[] = {
 153         /* bootloader (U-Boot, etc) in first sector */
 154         {
 155               .name             = "bootloader",
 156               .offset           = 0,
 157               .size             = SZ_128K,
 158               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 159         },
 160         /* bootloader params in the next sector */
 161         {
 162               .name             = "params",
 163               .offset           = MTDPART_OFS_APPEND,
 164               .size             = SZ_128K,
 165               .mask_flags       = 0,
 166         },
 167         /* kernel */
 168         {
 169               .name             = "kernel",
 170               .offset           = MTDPART_OFS_APPEND,
 171               .size             = SZ_2M,
 172               .mask_flags       = 0
 173         },
 174         /* file system */
 175         {
 176               .name             = "filesystem",
 177               .offset           = MTDPART_OFS_APPEND,
 178               .size             = MTDPART_SIZ_FULL,
 179               .mask_flags       = 0
 180         }
 181 };
 182
 183 static struct physmap_flash_data h4_flash_data = {
 184         .width          = 2,
 185         .parts          = h4_partitions,
 186         .nr_parts       = ARRAY_SIZE(h4_partitions),
 187 };
 188
 189 static struct resource h4_flash_resource = {
 190         .flags          = IORESOURCE_MEM,
 191 };
 192
 193 static struct platform_device h4_flash_device = {
 194         .name           = "physmap-flash",
 195         .id             = 0,
 196         .dev            = {
 197                 .platform_data  = &h4_flash_data,
 198         },
 199         .num_resources  = 1,
 200         .resource       = &h4_flash_resource,
 201 };
 202
 203 static struct platform_device *h4_devices[] __initdata = {
 204         &h4_flash_device,
 205 };
 206
 207 static struct panel_generic_dpi_data h4_panel_data = {
 208         .name                   = "h4",
 209 };
 210
 211 static struct omap_dss_device h4_lcd_device = {
 212         .name                   = "lcd",
 213         .driver_name            = "generic_dpi_panel",
 214         .type                   = OMAP_DISPLAY_TYPE_DPI,
 215         .phy.dpi.data_lines     = 16,
 216         .data                   = &h4_panel_data,
 217 };
 218
 219 static struct omap_dss_device *h4_dss_devices[] = {
 220         &h4_lcd_device,
 221 };
 222
 223 static struct omap_dss_board_info h4_dss_data = {
 224         .num_devices    = ARRAY_SIZE(h4_dss_devices),
 225         .devices        = h4_dss_devices,
 226         .default_device = &h4_lcd_device,
 227 };
 228
 229 /* 2420 Sysboot setup (2430 is different) */
 230 static u32 get_sysboot_value(void)
 231 {
 232         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 233                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 234                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 235                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 236 }
 237
 238 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 239  *
 240  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 241  *  correctly.  The macro needs to look at production_id not just hawkeye.
 242  */
 243 static u32 is_gpmc_muxed(void)
 244 {
 245         u32 mux;
 246         mux = get_sysboot_value();
 247         if ((mux & 0xF) == 0xd)
 248                 return 1;       /* NAND config (could be either) */
 249         if (mux & 0x2)          /* if mux'ed */
 250                 return 1;
 251         else
 252                 return 0;
 253 }
 254
 255 static inline void __init h4_init_debug(void)
 256 {
 257         int eth_cs;
 258         unsigned long cs_mem_base;
 259         unsigned int muxed, rate;
 260         struct clk *gpmc_fck;
 261
 262         eth_cs  = H4_SMC91X_CS;
 263
 264         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 265         if (IS_ERR(gpmc_fck)) {
 266                 WARN_ON(1);
 267                 return;
 268         }
 269
 270         clk_enable(gpmc_fck);
 271         rate = clk_get_rate(gpmc_fck);
 272         clk_disable(gpmc_fck);
 273         clk_put(gpmc_fck);
 274
 275         if (is_gpmc_muxed())
 276                 muxed = 0x200;
 277         else
 278                 muxed = 0;
 279
 280         /* Make sure CS1 timings are correct */
 281         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 282                           0x00011000 | muxed);
 283
 284         if (rate >= 160000000) {
 285                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 286                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 287                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 288                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 289                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 290         } else if (rate >= 130000000) {
 291                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 294                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 295                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 296         } else {/* rate = 100000000 */
 297                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 298                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 299                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 300                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 301                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 302         }
 303
 304         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 305                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 306                 goto out;
 307         }
 308
 309         udelay(100);
 310
 311         omap_mux_init_gpio(92, 0);
 312         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 313                 gpmc_cs_free(eth_cs);
 314
 315 out:
 316         clk_disable(gpmc_fck);
 317         clk_put(gpmc_fck);
 318 }
 319
 320 static void __init h4_init_flash(void)
 321 {
 322         unsigned long base;
 323
 324         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 325                 printk("Can't request GPMC CS for flash\n");
 326                 return;
 327         }
 328         h4_flash_resource.start = base;
 329         h4_flash_resource.end   = base + SZ_64M - 1;
 330 }
 331
 332 static struct omap_usb_config h4_usb_config __initdata = {
 333         /* S1.10 OFF -- usb "download port"
 334          * usb0 switched to Mini-B port and isp1105 transceiver;
 335          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
 336          */
 337         .register_dev   = 1,
 338         .pins[0]        = 3,
 339 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
 340         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
 341 };
 342
 343 static struct at24_platform_data m24c01 = {
 344         .byte_len       = SZ_1K / 8,
 345         .page_size      = 16,
 346 };
 347
 348 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 349         {
 350                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 351                 .irq            = OMAP_GPIO_IRQ(125),
 352         },
 353         {       /* EEPROM on mainboard */
 354                 I2C_BOARD_INFO("24c01", 0x52),
 355                 .platform_data  = &m24c01,
 356         },
 357         {       /* EEPROM on cpu card */
 358                 I2C_BOARD_INFO("24c01", 0x57),
 359                 .platform_data  = &m24c01,
 360         },
 361 };
 362
 363 #ifdef CONFIG_OMAP_MUX
 364 static struct omap_board_mux board_mux[] __initdata = {
 365         { .reg_offset = OMAP_MUX_TERMINATOR },
 366 };
 367 #endif
 368
 369 static void __init omap_h4_init(void)
 370 {
 371         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 372
 373         /*
 374          * Make sure the serial ports are muxed on at this point.
 375          * You have to mux them off in device drivers later on
 376          * if not needed.
 377          */
 378
 379         board_mkp_init();
 380         i2c_register_board_info(1, h4_i2c_board_info,
 381                         ARRAY_SIZE(h4_i2c_board_info));
 382
 383         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 384         omap2_usbfs_init(&h4_usb_config);
 385         omap_serial_init();
 386         omap_sdrc_init(NULL, NULL);
 387         h4_init_flash();
 388
 389         omap_display_init(&h4_dss_data);
 390 }
 391
 392 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 393         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 394         .atag_offset    = 0x100,
 395         .reserve        = omap_reserve,
 396         .map_io         = omap242x_map_io,
 397         .init_early     = omap2420_init_early,
 398         .init_irq       = omap2_init_irq,
 399         .handle_irq     = omap2_intc_handle_irq,
 400         .init_machine   = omap_h4_init,
 401         .timer          = &omap2_timer,
 402         .restart        = omap_prcm_restart,
 403 MACHINE_END