board/omap3/zoom2/zoom2.c

   1 /*
   2  * Copyright (c) 2009 Wind River Systems, Inc.
   3  * Tom Rix <Tom.Rix@windriver.com>
   4  *
   5  * Derived from Zoom1 code by
   6  *      Nishanth Menon <nm@ti.com>
   7  *      Sunil Kumar <sunilsaini05@gmail.com>
   8  *      Shashi Ranjan <shashiranjanmca05@gmail.com>
   9  *      Richard Woodruff <r-woodruff2@ti.com>
  10  *      Syed Mohammed Khasim <khasim@ti.com>
  11  *
  12  *
  13  * See file CREDITS for list of people who contributed to this
  14  * project.
  15  *
  16  * This program is free software; you can redistribute it and/or
  17  * modify it under the terms of the GNU General Public License as
  18  * published by the Free Software Foundation; either version 2 of
  19  * the License, or (at your option) any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  29  * MA 02111-1307 USA
  30  */
  31 #include <common.h>
  32 #ifdef CONFIG_STATUS_LED
  33 #include <status_led.h>
  34 #endif
  35 #include <asm/io.h>
  36 #include <asm/arch/mem.h>
  37 #include <asm/arch/mux.h>
  38 #include <asm/arch/sys_proto.h>
  39 #include <asm/mach-types.h>
  40 #include "zoom2.h"
  41 #include "zoom2_serial.h"
  42
  43 /*
  44  * This the the zoom2, board specific, gpmc configuration for the
  45  * quad uart on the debug board.   The more general gpmc configurations
  46  * are setup at the cpu level in cpu/arm_cortexa8/omap3/mem.c
  47  *
  48  * The details of the setting of the serial gpmc setup are not available.
  49  * The values were provided by another party.
  50  */
  51 extern void enable_gpmc_config(u32 *gpmc_config, gpmc_csx_t *gpmc_cs_base,
  52                                u32 base, u32 size);
  53
  54 static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = {
  55         0x00011000,
  56         0x001F1F01,
  57         0x00080803,
  58         0x1D091D09,
  59         0x041D1F1F,
  60         0x1D0904C4, 0
  61 };
  62
  63 /*
  64  * Routine: board_init
  65  * Description: Early hardware init.
  66  */
  67 int board_init (void)
  68 {
  69         DECLARE_GLOBAL_DATA_PTR;
  70         gpmc_csx_t *serial_cs_base;
  71         u32 *gpmc_config;
  72
  73         gpmc_init ();           /* in SRAM or SDRAM, finish GPMC */
  74
  75         /* Configure console support on zoom2 */
  76         gpmc_config = gpmc_serial_TL16CP754C;
  77         serial_cs_base = (gpmc_csx_t *) (GPMC_CONFIG_CS0_BASE +
  78                                          (3 * GPMC_CONFIG_WIDTH));
  79         enable_gpmc_config(gpmc_config,
  80                            serial_cs_base,
  81                            SERIAL_TL16CP754C_BASE,
  82                            GPMC_SIZE_16M);
  83
  84         /* board id for Linux */
  85         gd->bd->bi_arch_number = MACH_TYPE_OMAP_ZOOM2;
  86         /* boot param addr */
  87         gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  88
  89 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
  90         status_led_set (STATUS_LED_BOOT, STATUS_LED_ON);
  91 #endif
  92         return 0;
  93 }
  94
  95 /*
  96  * Routine: misc_init_r
  97  * Description: Configure zoom board specific configurations
  98  */
  99 int misc_init_r (void)
 100 {
 101         power_init_r ();
 102         dieid_num_r ();
 103         return 0;
 104 }
 105
 106 /*
 107  * Routine: set_muxconf_regs
 108  * Description: Setting up the configuration Mux registers specific to the
 109  *              hardware. Many pins need to be moved from protect to primary
 110  *              mode.
 111  */
 112 void set_muxconf_regs (void)
 113 {
 114         /* platform specific muxes */
 115         MUX_ZOOM2 ();
 116 }