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/platform_data/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 #include <linux/mfd/menelaus.h>
  30 #include <linux/omap-dma.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <video/omapdss.h>
  37 #include <video/omap-panel-data.h>
  38
  39 #include "common.h"
  40 #include "mux.h"
  41 #include "control.h"
  42 #include "gpmc.h"
  43 #include "gpmc-smc91x.h"
  44
  45 #define H4_FLASH_CS     0
  46
  47 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
  48 static const uint32_t board_matrix_keys[] = {
  49         KEY(0, 0, KEY_LEFT),
  50         KEY(1, 0, KEY_RIGHT),
  51         KEY(2, 0, KEY_A),
  52         KEY(3, 0, KEY_B),
  53         KEY(4, 0, KEY_C),
  54         KEY(0, 1, KEY_DOWN),
  55         KEY(1, 1, KEY_UP),
  56         KEY(2, 1, KEY_E),
  57         KEY(3, 1, KEY_F),
  58         KEY(4, 1, KEY_G),
  59         KEY(0, 2, KEY_ENTER),
  60         KEY(1, 2, KEY_I),
  61         KEY(2, 2, KEY_J),
  62         KEY(3, 2, KEY_K),
  63         KEY(4, 2, KEY_3),
  64         KEY(0, 3, KEY_M),
  65         KEY(1, 3, KEY_N),
  66         KEY(2, 3, KEY_O),
  67         KEY(3, 3, KEY_P),
  68         KEY(4, 3, KEY_Q),
  69         KEY(0, 4, KEY_R),
  70         KEY(1, 4, KEY_4),
  71         KEY(2, 4, KEY_T),
  72         KEY(3, 4, KEY_U),
  73         KEY(4, 4, KEY_ENTER),
  74         KEY(0, 5, KEY_V),
  75         KEY(1, 5, KEY_W),
  76         KEY(2, 5, KEY_L),
  77         KEY(3, 5, KEY_S),
  78         KEY(4, 5, KEY_ENTER),
  79 };
  80
  81 static const struct matrix_keymap_data board_keymap_data = {
  82         .keymap                 = board_matrix_keys,
  83         .keymap_size            = ARRAY_SIZE(board_matrix_keys),
  84 };
  85
  86 static unsigned int board_keypad_row_gpios[] = {
  87         88, 89, 124, 11, 6, 96
  88 };
  89
  90 static unsigned int board_keypad_col_gpios[] = {
  91         90, 91, 100, 36, 12, 97, 98
  92 };
  93
  94 static struct matrix_keypad_platform_data board_keypad_platform_data = {
  95         .keymap_data    = &board_keymap_data,
  96         .row_gpios      = board_keypad_row_gpios,
  97         .num_row_gpios  = ARRAY_SIZE(board_keypad_row_gpios),
  98         .col_gpios      = board_keypad_col_gpios,
  99         .num_col_gpios  = ARRAY_SIZE(board_keypad_col_gpios),
 100         .active_low     = 1,
 101
 102         .debounce_ms            = 20,
 103         .col_scan_delay_us      = 5,
 104 };
 105
 106 static struct platform_device board_keyboard = {
 107         .name   = "matrix-keypad",
 108         .id     = -1,
 109         .dev    = {
 110                 .platform_data = &board_keypad_platform_data,
 111         },
 112 };
 113 static void __init board_mkp_init(void)
 114 {
 115         omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
 116         omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
 117         omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
 118         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 119         if (omap_has_menelaus()) {
 120                 omap_mux_init_signal("sdrc_a14.gpio0",
 121                         OMAP_PULL_ENA | OMAP_PULL_UP);
 122                 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 123                 omap_mux_init_signal("gpio_98", 0);
 124                 board_keypad_row_gpios[5] = 0;
 125                 board_keypad_col_gpios[2] = 15;
 126                 board_keypad_col_gpios[6] = 18;
 127         } else {
 128                 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
 129                 omap_mux_init_signal("gpio_100", 0);
 130                 omap_mux_init_signal("gpio_98", 0);
 131         }
 132         omap_mux_init_signal("gpio_90", 0);
 133         omap_mux_init_signal("gpio_91", 0);
 134         omap_mux_init_signal("gpio_36", 0);
 135         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 136         omap_mux_init_signal("gpio_97", 0);
 137
 138         platform_device_register(&board_keyboard);
 139 }
 140 #else
 141 static inline void board_mkp_init(void)
 142 {
 143 }
 144 #endif
 145
 146 static struct mtd_partition h4_partitions[] = {
 147         /* bootloader (U-Boot, etc) in first sector */
 148         {
 149               .name             = "bootloader",
 150               .offset           = 0,
 151               .size             = SZ_128K,
 152               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 153         },
 154         /* bootloader params in the next sector */
 155         {
 156               .name             = "params",
 157               .offset           = MTDPART_OFS_APPEND,
 158               .size             = SZ_128K,
 159               .mask_flags       = 0,
 160         },
 161         /* kernel */
 162         {
 163               .name             = "kernel",
 164               .offset           = MTDPART_OFS_APPEND,
 165               .size             = SZ_2M,
 166               .mask_flags       = 0
 167         },
 168         /* file system */
 169         {
 170               .name             = "filesystem",
 171               .offset           = MTDPART_OFS_APPEND,
 172               .size             = MTDPART_SIZ_FULL,
 173               .mask_flags       = 0
 174         }
 175 };
 176
 177 static struct physmap_flash_data h4_flash_data = {
 178         .width          = 2,
 179         .parts          = h4_partitions,
 180         .nr_parts       = ARRAY_SIZE(h4_partitions),
 181 };
 182
 183 static struct resource h4_flash_resource = {
 184         .flags          = IORESOURCE_MEM,
 185 };
 186
 187 static struct platform_device h4_flash_device = {
 188         .name           = "physmap-flash",
 189         .id             = 0,
 190         .dev            = {
 191                 .platform_data  = &h4_flash_data,
 192         },
 193         .num_resources  = 1,
 194         .resource       = &h4_flash_resource,
 195 };
 196
 197 static const struct display_timing cm_t35_lcd_videomode = {
 198         .pixelclock     = { 0, 6250000, 0 },
 199
 200         .hactive = { 0, 240, 0 },
 201         .hfront_porch = { 0, 15, 0 },
 202         .hback_porch = { 0, 60, 0 },
 203         .hsync_len = { 0, 15, 0 },
 204
 205         .vactive = { 0, 320, 0 },
 206         .vfront_porch = { 0, 1, 0 },
 207         .vback_porch = { 0, 1, 0 },
 208         .vsync_len = { 0, 1, 0 },
 209
 210         .flags = DISPLAY_FLAGS_HSYNC_HIGH | DISPLAY_FLAGS_VSYNC_HIGH |
 211                 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
 212 };
 213
 214 static struct panel_dpi_platform_data cm_t35_lcd_pdata = {
 215         .name                   = "lcd",
 216         .source                 = "dpi.0",
 217
 218         .data_lines             = 16,
 219
 220         .display_timing         = &cm_t35_lcd_videomode,
 221
 222         .enable_gpio            = -1,
 223         .backlight_gpio         = -1,
 224 };
 225
 226 static struct platform_device cm_t35_lcd_device = {
 227         .name                   = "panel-dpi",
 228         .id                     = 0,
 229         .dev.platform_data      = &cm_t35_lcd_pdata,
 230 };
 231
 232 static struct platform_device *h4_devices[] __initdata = {
 233         &h4_flash_device,
 234         &cm_t35_lcd_device,
 235 };
 236
 237 static struct omap_dss_board_info h4_dss_data = {
 238         .default_display_name = "lcd",
 239 };
 240
 241 /* 2420 Sysboot setup (2430 is different) */
 242 static u32 get_sysboot_value(void)
 243 {
 244         return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
 245                 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
 246                  OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
 247                  OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
 248 }
 249
 250 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
 251  *
 252  * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
 253  *  correctly.  The macro needs to look at production_id not just hawkeye.
 254  */
 255 static u32 is_gpmc_muxed(void)
 256 {
 257         u32 mux;
 258         mux = get_sysboot_value();
 259         if ((mux & 0xF) == 0xd)
 260                 return 1;       /* NAND config (could be either) */
 261         if (mux & 0x2)          /* if mux'ed */
 262                 return 1;
 263         else
 264                 return 0;
 265 }
 266
 267 #if IS_ENABLED(CONFIG_SMC91X)
 268
 269 static struct omap_smc91x_platform_data board_smc91x_data = {
 270         .cs             = 1,
 271         .gpio_irq       = 92,
 272         .flags          = GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_LOWLEVEL,
 273 };
 274
 275 static void __init board_smc91x_init(void)
 276 {
 277         if (is_gpmc_muxed())
 278                 board_smc91x_data.flags |= GPMC_MUX_ADD_DATA;
 279
 280         omap_mux_init_gpio(board_smc91x_data.gpio_irq, OMAP_PIN_INPUT);
 281         gpmc_smc91x_init(&board_smc91x_data);
 282 }
 283
 284 #else
 285
 286 static inline void board_smc91x_init(void)
 287 {
 288 }
 289
 290 #endif
 291
 292 static void __init h4_init_flash(void)
 293 {
 294         unsigned long base;
 295
 296         if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
 297                 printk("Can't request GPMC CS for flash\n");
 298                 return;
 299         }
 300         h4_flash_resource.start = base;
 301         h4_flash_resource.end   = base + SZ_64M - 1;
 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         },
 313         {       /* EEPROM on mainboard */
 314                 I2C_BOARD_INFO("24c01", 0x52),
 315                 .platform_data  = &m24c01,
 316         },
 317         {       /* EEPROM on cpu card */
 318                 I2C_BOARD_INFO("24c01", 0x57),
 319                 .platform_data  = &m24c01,
 320         },
 321 };
 322
 323 #ifdef CONFIG_OMAP_MUX
 324 static struct omap_board_mux board_mux[] __initdata = {
 325         { .reg_offset = OMAP_MUX_TERMINATOR },
 326 };
 327 #endif
 328
 329 static void __init omap_h4_init(void)
 330 {
 331         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
 332
 333         /*
 334          * Make sure the serial ports are muxed on at this point.
 335          * You have to mux them off in device drivers later on
 336          * if not needed.
 337          */
 338
 339         board_mkp_init();
 340         h4_i2c_board_info[0].irq = gpio_to_irq(125);
 341         i2c_register_board_info(1, h4_i2c_board_info,
 342                         ARRAY_SIZE(h4_i2c_board_info));
 343
 344         platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
 345         omap_serial_init();
 346         omap_sdrc_init(NULL, NULL);
 347         h4_init_flash();
 348         board_smc91x_init();
 349
 350         omap_display_init(&h4_dss_data);
 351 }
 352
 353 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 354         /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
 355         .atag_offset    = 0x100,
 356         .reserve        = omap_reserve,
 357         .map_io         = omap242x_map_io,
 358         .init_early     = omap2420_init_early,
 359         .init_irq       = omap2_init_irq,
 360         .handle_irq     = omap2_intc_handle_irq,
 361         .init_machine   = omap_h4_init,
 362         .init_late      = omap2420_init_late,
 363         .init_time      = omap2_sync32k_timer_init,
 364         .restart        = omap2xxx_restart,
 365 MACHINE_END