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/board.h>
  36 #include "common.h"
  37 #include <plat/menelaus.h>
  38 #include <plat/dma.h>
  39 #include <plat/gpmc.h>
  40
  41 #include <video/omapdss.h>
  42 #include <video/omap-panel-generic-dpi.h>
  43
  44 #include "mux.h"
  45 #include "control.h"
  46
  47 #define H4_FLASH_CS     0
  48 #define H4_SMC91X_CS    1
  49
  50 #define H4_ETHR_GPIO_IRQ                92
  51
  52 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
  53 static const uint32_t board_matrix_keys[] = {
  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 const struct matrix_keymap_data board_keymap_data = {
  87         .keymap                 = board_matrix_keys,
  88         .keymap_size            = ARRAY_SIZE(board_matrix_keys),
  89 };
  90
  91 static unsigned int board_keypad_row_gpios[] = {
  92         88, 89, 124, 11, 6, 96
  93 };
  94
  95 static unsigned int board_keypad_col_gpios[] = {
  96         90, 91, 100, 36, 12, 97, 98
  97 };
  98
  99 static struct matrix_keypad_platform_data board_keypad_platform_data = {
 100         .keymap_data    = &board_keymap_data,
 101         .row_gpios      = board_keypad_row_gpios,
 102         .num_row_gpios  = ARRAY_SIZE(board_keypad_row_gpios),
 103         .col_gpios      = board_keypad_col_gpios,
 104         .num_col_gpios  = ARRAY_SIZE(board_keypad_col_gpios),
 105         .active_low     = 1,
 106
 107         .debounce_ms            = 20,
 108         .col_scan_delay_us      = 5,
 109 };
 110
 111 static struct platform_device board_keyboard = {
 112         .name   = "matrix-keypad",
 113         .id     = -1,
 114         .dev    = {
 115                 .platform_data = &board_keypad_platform_data,
 116         },
 117 };
 118 static void __init board_mkp_init(void)
 119 {
 120         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 121         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 122         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 123         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 124         if (omap_has_menelaus()) {
 125                 omap_mux_init_signal("sdrc_a14.gpio0",
 126                         OMAP_PULL_ENA | OMAP_PULL_UP);
 127                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 128                 omap_mux_init_signal("gpio_98", 0);
 129                 board_keypad_row_gpios[5] = 0;
 130                 board_keypad_col_gpios[2] = 15;
 131                 board_keypad_col_gpios[6] = 18;
 132         } else {
 133                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 134                 omap_mux_init_signal("gpio_100", 0);
 135                 omap_mux_init_signal("gpio_98", 0);
 136         }
 137         omap_mux_init_signal("gpio_90", 0);
 138         omap_mux_init_signal("gpio_91", 0);
 139         omap_mux_init_signal("gpio_36", 0);
 140         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 141         omap_mux_init_signal("gpio_97", 0);
 142
 143         platform_device_register(&board_keyboard);
 144 }
 145 #else
 146 static inline void board_mkp_init(void)
 147 {
 148 }
 149 #endif
 150
 151 static struct mtd_partition h4_partitions[] = {
 152         /* bootloader (U-Boot, etc) in first sector */
 153         {
 154               .name             = "bootloader",
 155               .offset           = 0,
 156               .size             = SZ_128K,
 157               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 158         },
 159         /* bootloader params in the next sector */
 160         {
 161               .name             = "params",
 162               .offset           = MTDPART_OFS_APPEND,
 163               .size             = SZ_128K,
 164               .mask_flags       = 0,
 165         },
 166         /* kernel */
 167         {
 168               .name             = "kernel",
 169               .offset           = MTDPART_OFS_APPEND,
 170               .size             = SZ_2M,
 171               .mask_flags       = 0
 172         },
 173         /* file system */
 174         {
 175               .name             = "filesystem",
 176               .offset           = MTDPART_OFS_APPEND,
 177               .size             = MTDPART_SIZ_FULL,
 178               .mask_flags       = 0
 179         }
 180 };
 181
 182 static struct physmap_flash_data h4_flash_data = {
 183         .width          = 2,
 184         .parts          = h4_partitions,
 185         .nr_parts       = ARRAY_SIZE(h4_partitions),
 186 };
 187
 188 static struct resource h4_flash_resource = {
 189         .flags          = IORESOURCE_MEM,
 190 };
 191
 192 static struct platform_device h4_flash_device = {
 193         .name           = "physmap-flash",
 194         .id             = 0,
 195         .dev            = {
 196                 .platform_data  = &h4_flash_data,
 197         },
 198         .num_resources  = 1,
 199         .resource       = &h4_flash_resource,
 200 };
 201
 202 static struct platform_device *h4_devices[] __initdata = {
 203         &h4_flash_device,
 204 };
 205
 206 static struct panel_generic_dpi_data h4_panel_data = {
 207         .name                   = "h4",
 208 };
 209
 210 static struct omap_dss_device h4_lcd_device = {
 211         .name                   = "lcd",
 212         .driver_name            = "generic_dpi_panel",
 213         .type                   = OMAP_DISPLAY_TYPE_DPI,
 214         .phy.dpi.data_lines     = 16,
 215         .data                   = &h4_panel_data,
 216 };
 217
 218 static struct omap_dss_device *h4_dss_devices[] = {
 219         &h4_lcd_device,
 220 };
 221
 222 static struct omap_dss_board_info h4_dss_data = {
 223         .num_devices    = ARRAY_SIZE(h4_dss_devices),
 224         .devices        = h4_dss_devices,
 225         .default_device = &h4_lcd_device,
 226 };
 227
 228 /* 2420 Sysboot setup (2430 is different) */
 229 static u32 get_sysboot_value(void)
 230 {
 231         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 232                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 233                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 234                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 235 }
 236
 237 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 238  *
 239  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 240  *  correctly.  The macro needs to look at production_id not just hawkeye.
 241  */
 242 static u32 is_gpmc_muxed(void)
 243 {
 244         u32 mux;
 245         mux = get_sysboot_value();
 246         if ((mux & 0xF) == 0xd)
 247                 return 1;       /* NAND config (could be either) */
 248         if (mux & 0x2)          /* if mux'ed */
 249                 return 1;
 250         else
 251                 return 0;
 252 }
 253
 254 static inline void __init h4_init_debug(void)
 255 {
 256         int eth_cs;
 257         unsigned long cs_mem_base;
 258         unsigned int muxed, rate;
 259         struct clk *gpmc_fck;
 260
 261         eth_cs  = H4_SMC91X_CS;
 262
 263         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 264         if (IS_ERR(gpmc_fck)) {
 265                 WARN_ON(1);
 266                 return;
 267         }
 268
 269         clk_enable(gpmc_fck);
 270         rate = clk_get_rate(gpmc_fck);
 271         clk_disable(gpmc_fck);
 272         clk_put(gpmc_fck);
 273
 274         if (is_gpmc_muxed())
 275                 muxed = 0x200;
 276         else
 277                 muxed = 0;
 278
 279         /* Make sure CS1 timings are correct */
 280         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 281                           0x00011000 | muxed);
 282
 283         if (rate >= 160000000) {
 284                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 285                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 286                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 287                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 288                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 289         } else if (rate >= 130000000) {
 290                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 291                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 294                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 295         } else {/* rate = 100000000 */
 296                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 297                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 298                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 299                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 300                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 301         }
 302
 303         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 304                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 305                 goto out;
 306         }
 307
 308         udelay(100);
 309
 310         omap_mux_init_gpio(92, 0);
 311         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 312                 gpmc_cs_free(eth_cs);
 313
 314 out:
 315         clk_disable(gpmc_fck);
 316         clk_put(gpmc_fck);
 317 }
 318
 319 static void __init h4_init_flash(void)
 320 {
 321         unsigned long base;
 322
 323         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 324                 printk("Can't request GPMC CS for flash\n");
 325                 return;
 326         }
 327         h4_flash_resource.start = base;
 328         h4_flash_resource.end   = base + SZ_64M - 1;
 329 }
 330
 331 static struct at24_platform_data m24c01 = {
 332         .byte_len       = SZ_1K / 8,
 333         .page_size      = 16,
 334 };
 335
 336 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 337         {
 338                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 339         },
 340         {       /* EEPROM on mainboard */
 341                 I2C_BOARD_INFO("24c01", 0x52),
 342                 .platform_data  = &m24c01,
 343         },
 344         {       /* EEPROM on cpu card */
 345                 I2C_BOARD_INFO("24c01", 0x57),
 346                 .platform_data  = &m24c01,
 347         },
 348 };
 349
 350 #ifdef CONFIG_OMAP_MUX
 351 static struct omap_board_mux board_mux[] __initdata = {
 352         { .reg_offset = OMAP_MUX_TERMINATOR },
 353 };
 354 #endif
 355
 356 static void __init omap_h4_init(void)
 357 {
 358         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 359
 360         /*
 361          * Make sure the serial ports are muxed on at this point.
 362          * You have to mux them off in device drivers later on
 363          * if not needed.
 364          */
 365
 366         board_mkp_init();
 367         h4_i2c_board_info[0].irq = gpio_to_irq(125);
 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         omap_serial_init();
 373         omap_sdrc_init(NULL, NULL);
 374         h4_init_flash();
 375
 376         omap_display_init(&h4_dss_data);
 377 }
 378
 379 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 380         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 381         .atag_offset    = 0x100,
 382         .reserve        = omap_reserve,
 383         .map_io         = omap242x_map_io,
 384         .init_early     = omap2420_init_early,
 385         .init_irq       = omap2_init_irq,
 386         .handle_irq     = omap2_intc_handle_irq,
 387         .init_machine   = omap_h4_init,
 388         .init_late      = omap2420_init_late,
 389         .timer          = &omap2_timer,
 390         .restart        = omap_prcm_restart,
 391 MACHINE_END