LXR uboot/board/pandora/pandora.c

   1/*
   2 * (C) Copyright 2008
   3 * Grazvydas Ignotas <notasas@gmail.com>
   4 *
   5 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by
   6 *      Richard Woodruff <r-woodruff2@ti.com>
   7 *      Syed Mohammed Khasim <khasim@ti.com>
   8 *      Sunil Kumar <sunilsaini05@gmail.com>
   9 *      Shashi Ranjan <shashiranjanmca05@gmail.com>
  10 *
  11 * (C) Copyright 2004-2008
  12 * Texas Instruments, <www.ti.com>
  13 *
  14 * See file CREDITS for list of people who contributed to this
  15 * project.
  16 *
  17 * This program is free software; you can redistribute it and/or
  18 * modify it under the terms of the GNU General Public License as
  19 * published by the Free Software Foundation; either version 2 of
  20 * the License, or (at your option) any later version.
  21 *
  22 * This program is distributed in the hope that it will be useful,
  23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25 * GNU General Public License for more details.
  26 *
  27 * You should have received a copy of the GNU General Public License
  28 * along with this program; if not, write to the Free Software
  29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  30 * MA 02111-1307 USA
  31 */
  32#include <common.h>
  33#include <twl4030.h>
  34#include <asm/io.h>
  35#include <asm/arch/mux.h>
  36#include <asm/arch/sys_proto.h>
  37#include <asm/mach-types.h>
  38#include "pandora.h"
  39
  40DECLARE_GLOBAL_DATA_PTR;
  41
  42#define TWL4030_BB_CFG_BBCHEN           (1 << 4)
  43#define TWL4030_BB_CFG_BBSEL_3200MV     (3 << 2)
  44#define TWL4030_BB_CFG_BBISEL_500UA     2
  45
  46/*
  47 * Routine: board_init
  48 * Description: Early hardware init.
  49 */
  50int board_init(void)
  51{
  52        gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
  53        /* board id for Linux */
  54        gd->bd->bi_arch_number = MACH_TYPE_OMAP3_PANDORA;
  55        /* boot param addr */
  56        gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  57
  58        return 0;
  59}
  60
  61/*
  62 * Routine: misc_init_r
  63 * Description: Configure board specific parts
  64 */
  65int misc_init_r(void)
  66{
  67        struct gpio *gpio1_base = (struct gpio *)OMAP34XX_GPIO1_BASE;
  68        struct gpio *gpio4_base = (struct gpio *)OMAP34XX_GPIO4_BASE;
  69        struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
  70        struct gpio *gpio6_base = (struct gpio *)OMAP34XX_GPIO6_BASE;
  71
  72        twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
  73
  74        /* Configure GPIOs to output */
  75        writel(~(GPIO14 | GPIO15 | GPIO16 | GPIO23), &gpio1_base->oe);
  76        writel(~GPIO22, &gpio4_base->oe);       /* 118 */
  77        writel(~(GPIO0 | GPIO1 | GPIO28 | GPIO29 | GPIO30 | GPIO31),
  78                &gpio5_base->oe);       /* 128, 129, 156-159 */
  79        writel(~GPIO4, &gpio6_base->oe);        /* 164 */
  80
  81        /* Set GPIOs */
  82        writel(GPIO28, &gpio5_base->setdataout);
  83        writel(GPIO4, &gpio6_base->setdataout);
  84
  85        /* Enable battery backup capacitor (3.2V, 0.5mA charge current) */
  86        twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER,
  87                TWL4030_BB_CFG_BBCHEN | TWL4030_BB_CFG_BBSEL_3200MV |
  88                TWL4030_BB_CFG_BBISEL_500UA, TWL4030_PM_RECEIVER_BB_CFG);
  89
  90        dieid_num_r();
  91
  92        return 0;
  93}
  94
  95/*
  96 * Routine: set_muxconf_regs
  97 * Description: Setting up the configuration Mux registers specific to the
  98 *              hardware. Many pins need to be moved from protect to primary
  99 *              mode.
 100 */
 101void set_muxconf_regs(void)
 102{
 103        MUX_PANDORA();
 104}
 105