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 <mach/gpio.h>
  35 #include <plat/usb.h>
  36 #include <plat/board.h>
  37 #include <plat/common.h>
  38 #include <plat/keypad.h>
  39 #include <plat/menelaus.h>
  40 #include <plat/dma.h>
  41 #include <plat/gpmc.h>
  42
  43 #include "mux.h"
  44 #include "control.h"
  45
  46 #define H4_FLASH_CS     0
  47 #define H4_SMC91X_CS    1
  48
  49 #define H4_ETHR_GPIO_IRQ                92
  50
  51 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
  52 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
  53
  54 static const unsigned int h4_keymap[] = {
  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 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 physmap_flash_data h4_flash_data = {
 119         .width          = 2,
 120         .parts          = h4_partitions,
 121         .nr_parts       = ARRAY_SIZE(h4_partitions),
 122 };
 123
 124 static struct resource h4_flash_resource = {
 125         .flags          = IORESOURCE_MEM,
 126 };
 127
 128 static struct platform_device h4_flash_device = {
 129         .name           = "physmap-flash",
 130         .id             = 0,
 131         .dev            = {
 132                 .platform_data  = &h4_flash_data,
 133         },
 134         .num_resources  = 1,
 135         .resource       = &h4_flash_resource,
 136 };
 137
 138 static const struct matrix_keymap_data h4_keymap_data = {
 139         .keymap         = h4_keymap,
 140         .keymap_size    = ARRAY_SIZE(h4_keymap),
 141 };
 142
 143 static struct omap_kp_platform_data h4_kp_data = {
 144         .rows           = 6,
 145         .cols           = 7,
 146         .keymap_data    = &h4_keymap_data,
 147         .rep            = true,
 148         .row_gpios      = row_gpios,
 149         .col_gpios      = col_gpios,
 150 };
 151
 152 static struct platform_device h4_kp_device = {
 153         .name           = "omap-keypad",
 154         .id             = -1,
 155         .dev            = {
 156                 .platform_data = &h4_kp_data,
 157         },
 158 };
 159
 160 static struct platform_device h4_lcd_device = {
 161         .name           = "lcd_h4",
 162         .id             = -1,
 163 };
 164
 165 static struct platform_device *h4_devices[] __initdata = {
 166         &h4_flash_device,
 167         &h4_kp_device,
 168         &h4_lcd_device,
 169 };
 170
 171 /* 2420 Sysboot setup (2430 is different) */
 172 static u32 get_sysboot_value(void)
 173 {
 174         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 175                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 176                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 177                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 178 }
 179
 180 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 181  *
 182  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 183  *  correctly.  The macro needs to look at production_id not just hawkeye.
 184  */
 185 static u32 is_gpmc_muxed(void)
 186 {
 187         u32 mux;
 188         mux = get_sysboot_value();
 189         if ((mux & 0xF) == 0xd)
 190                 return 1;       /* NAND config (could be either) */
 191         if (mux & 0x2)          /* if mux'ed */
 192                 return 1;
 193         else
 194                 return 0;
 195 }
 196
 197 static inline void __init h4_init_debug(void)
 198 {
 199         int eth_cs;
 200         unsigned long cs_mem_base;
 201         unsigned int muxed, rate;
 202         struct clk *gpmc_fck;
 203
 204         eth_cs  = H4_SMC91X_CS;
 205
 206         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 207         if (IS_ERR(gpmc_fck)) {
 208                 WARN_ON(1);
 209                 return;
 210         }
 211
 212         clk_enable(gpmc_fck);
 213         rate = clk_get_rate(gpmc_fck);
 214         clk_disable(gpmc_fck);
 215         clk_put(gpmc_fck);
 216
 217         if (is_gpmc_muxed())
 218                 muxed = 0x200;
 219         else
 220                 muxed = 0;
 221
 222         /* Make sure CS1 timings are correct */
 223         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
 224                           0x00011000 | muxed);
 225
 226         if (rate >= 160000000) {
 227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 232         } else if (rate >= 130000000) {
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 238         } else {/* rate = 100000000 */
 239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 240                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 241                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 242                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 243                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 244         }
 245
 246         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 247                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 248                 goto out;
 249         }
 250
 251         udelay(100);
 252
 253         omap_mux_init_gpio(92, 0);
 254         if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
 255                 gpmc_cs_free(eth_cs);
 256
 257 out:
 258         clk_disable(gpmc_fck);
 259         clk_put(gpmc_fck);
 260 }
 261
 262 static void __init h4_init_flash(void)
 263 {
 264         unsigned long base;
 265
 266         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 267                 printk("Can't request GPMC CS for flash\n");
 268                 return;
 269         }
 270         h4_flash_resource.start = base;
 271         h4_flash_resource.end   = base + SZ_64M - 1;
 272 }
 273
 274 static struct omap_lcd_config h4_lcd_config __initdata = {
 275         .ctrl_name      = "internal",
 276 };
 277
 278 static struct omap_usb_config h4_usb_config __initdata = {
 279         /* S1.10 OFF -- usb "download port"
 280          * usb0 switched to Mini-B port and isp1105 transceiver;
 281          * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
 282          */
 283         .register_dev   = 1,
 284         .pins[0]        = 3,
 285 /*      .hmc_mode       = 0x14,*/       /* 0:dev 1:host 2:disable */
 286         .hmc_mode       = 0x00,         /* 0:dev|otg 1:disable 2:disable */
 287 };
 288
 289 static struct omap_board_config_kernel h4_config[] __initdata = {
 290         { OMAP_TAG_LCD,         &h4_lcd_config },
 291 };
 292
 293 static void __init omap_h4_init_early(void)
 294 {
 295         omap2_init_common_infrastructure();
 296         omap2_init_common_devices(NULL, NULL);
 297 }
 298
 299 static void __init omap_h4_init_irq(void)
 300 {
 301         omap2_init_irq();
 302 }
 303
 304 static struct at24_platform_data m24c01 = {
 305         .byte_len       = SZ_1K / 8,
 306         .page_size      = 16,
 307 };
 308
 309 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
 310         {
 311                 I2C_BOARD_INFO("isp1301_omap", 0x2d),
 312                 .irq            = OMAP_GPIO_IRQ(125),
 313         },
 314         {       /* EEPROM on mainboard */
 315                 I2C_BOARD_INFO("24c01", 0x52),
 316                 .platform_data  = &m24c01,
 317         },
 318         {       /* EEPROM on cpu card */
 319                 I2C_BOARD_INFO("24c01", 0x57),
 320                 .platform_data  = &m24c01,
 321         },
 322 };
 323
 324 #ifdef CONFIG_OMAP_MUX
 325 static struct omap_board_mux board_mux[] __initdata = {
 326         { .reg_offset = OMAP_MUX_TERMINATOR },
 327 };
 328 #endif
 329
 330 static void __init omap_h4_init(void)
 331 {
 332         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 333
 334         omap_board_config = h4_config;
 335         omap_board_config_size = ARRAY_SIZE(h4_config);
 336
 337         /*
 338          * Make sure the serial ports are muxed on at this point.
 339          * You have to mux them off in device drivers later on
 340          * if not needed.
 341          */
 342
 343 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
 344         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 345         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 346         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 347         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 348         if (omap_has_menelaus()) {
 349                 omap_mux_init_signal("sdrc_a14.gpio0",
 350                         OMAP_PULL_ENA | OMAP_PULL_UP);
 351                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 352                 omap_mux_init_signal("gpio_98", 0);
 353                 row_gpios[5] = 0;
 354                 col_gpios[2] = 15;
 355                 col_gpios[6] = 18;
 356         } else {
 357                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 358                 omap_mux_init_signal("gpio_100", 0);
 359                 omap_mux_init_signal("gpio_98", 0);
 360         }
 361         omap_mux_init_signal("gpio_90", 0);
 362         omap_mux_init_signal("gpio_91", 0);
 363         omap_mux_init_signal("gpio_36", 0);
 364         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 365         omap_mux_init_signal("gpio_97", 0);
 366 #endif
 367
 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         omap2_usbfs_init(&h4_usb_config);
 373         omap_serial_init();
 374         h4_init_flash();
 375 }
 376
 377 static void __init omap_h4_map_io(void)
 378 {
 379         omap2_set_globals_242x();
 380         omap242x_map_common_io();
 381 }
 382
 383 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 384         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 385         .boot_params    = 0x80000100,
 386         .reserve        = omap_reserve,
 387         .map_io         = omap_h4_map_io,
 388         .init_early     = omap_h4_init_early,
 389         .init_irq       = omap_h4_init_irq,
 390         .init_machine   = omap_h4_init,
 391         .timer          = &omap2_timer,
 392 MACHINE_END