LXR uboot/board/comelit/dig297/dig297.c

   1/*
   2 * (C) Copyright 2011 Comelit Group SpA
   3 * Luca Ceresoli <luca.ceresoli@comelit.it>
   4 *
   5 * Based on board/ti/beagle/beagle.c:
   6 * (C) Copyright 2004-2008
   7 * Texas Instruments, <www.ti.com>
   8 *
   9 * Author :
  10 *      Sunil Kumar <sunilsaini05@gmail.com>
  11 *      Shashi Ranjan <shashiranjanmca05@gmail.com>
  12 *
  13 * Derived from Beagle Board and 3430 SDP code by
  14 *      Richard Woodruff <r-woodruff2@ti.com>
  15 *      Syed Mohammed Khasim <khasim@ti.com>
  16 *
  17 *
  18 * See file CREDITS for list of people who contributed to this
  19 * project.
  20 *
  21 * This program is free software; you can redistribute it and/or
  22 * modify it under the terms of the GNU General Public License as
  23 * published by the Free Software Foundation; either version 2 of
  24 * the License, or (at your option) any later version.
  25 *
  26 * This program is distributed in the hope that it will be useful,
  27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  29 * GNU General Public License for more details.
  30 *
  31 * You should have received a copy of the GNU General Public License
  32 * along with this program; if not, write to the Free Software
  33 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  34 * MA 02111-1307 USA
  35 */
  36#include <common.h>
  37#include <netdev.h>
  38#include <twl4030.h>
  39#include <asm/io.h>
  40#include <asm/arch/mmc_host_def.h>
  41#include <asm/arch/omap3-regs.h>
  42#include <asm/arch/mux.h>
  43#include <asm/arch/mem.h>
  44#include <asm/arch/sys_proto.h>
  45#include <asm/gpio.h>
  46#include <asm/mach-types.h>
  47#include "dig297.h"
  48
  49DECLARE_GLOBAL_DATA_PTR;
  50
  51#ifdef CONFIG_CMD_NET
  52static void setup_net_chip(void);
  53
  54#define NET_LAN9221_RESET_GPIO 12
  55
  56/* GPMC CS 5 connected to an SMSC LAN9220 ethernet controller */
  57#define NET_LAN9220_GPMC_CONFIG1        (DEVICESIZE_16BIT)
  58#define NET_LAN9220_GPMC_CONFIG2        (CSWROFFTIME(8) | \
  59                                         CSRDOFFTIME(7) | \
  60                                         ADVONTIME(1))
  61#define NET_LAN9220_GPMC_CONFIG3        (ADVWROFFTIME(2) | \
  62                                         ADVRDOFFTIME(2) | \
  63                                         ADVONTIME(1))
  64#define NET_LAN9220_GPMC_CONFIG4        (WEOFFTIME(8) | \
  65                                         WEONTIME(1) |  \
  66                                         OEOFFTIME(7)|  \
  67                                         OEONTIME(1))
  68#define NET_LAN9220_GPMC_CONFIG5        (PAGEBURSTACCESSTIME(0) | \
  69                                         RDACCESSTIME(6)        | \
  70                                         WRCYCLETIME(0x1D)      | \
  71                                         RDCYCLETIME(0x1D))
  72#define NET_LAN9220_GPMC_CONFIG6        ((1 << 31)          | \
  73                                         WRACCESSTIME(0x1D) | \
  74                                         WRDATAONADMUXBUS(3))
  75
  76static const u32 gpmc_lan_config[] = {
  77        NET_LAN9220_GPMC_CONFIG1,
  78        NET_LAN9220_GPMC_CONFIG2,
  79        NET_LAN9220_GPMC_CONFIG3,
  80        NET_LAN9220_GPMC_CONFIG4,
  81        NET_LAN9220_GPMC_CONFIG5,
  82        NET_LAN9220_GPMC_CONFIG6,
  83        /* CONFIG7: computed by enable_gpmc_cs_config() */
  84};
  85#endif /* CONFIG_CMD_NET */
  86
  87/*
  88 * Routine: board_init
  89 * Description: Early hardware init.
  90 */
  91int board_init(void)
  92{
  93        gpmc_init();            /* in SRAM or SDRAM, finish GPMC */
  94        /* boot param addr */
  95        gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  96
  97        return 0;
  98}
  99
 100/*
 101 * Routine: misc_init_r
 102 * Description: Configure board specific parts
 103 */
 104int misc_init_r(void)
 105{
 106        struct gpio *gpio1_base = (struct gpio *)OMAP34XX_GPIO1_BASE;
 107        struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
 108
 109        twl4030_power_init();
 110        twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
 111
 112        /*
 113         * GPIO list
 114         * - 159 OUT (GPIO5+31): reset for remote camera interface connector.
 115         * - 19  OUT (GPIO1+19): integrated speaker amplifier (1=on, 0=shdn).
 116         * - 20  OUT (GPIO1+20): handset amplifier (1=on, 0=shdn).
 117         */
 118
 119        /* Configure GPIOs to output */
 120        writel(~(GPIO19 | GPIO20), &gpio1_base->oe);
 121        writel(~(GPIO31), &gpio5_base->oe);
 122
 123        /* Set GPIO values */
 124        writel((GPIO19 | GPIO20), &gpio1_base->setdataout);
 125        writel(0, &gpio5_base->setdataout);
 126
 127#if defined(CONFIG_CMD_NET)
 128        setup_net_chip();
 129#endif
 130
 131        dieid_num_r();
 132
 133        return 0;
 134}
 135
 136/*
 137 * Routine: set_muxconf_regs
 138 * Description: Setting up the configuration Mux registers specific to the
 139 *              hardware. Many pins need to be moved from protect to primary
 140 *              mode.
 141 */
 142void set_muxconf_regs(void)
 143{
 144        MUX_DIG297();
 145}
 146
 147#ifdef CONFIG_GENERIC_MMC
 148int board_mmc_init(bd_t *bis)
 149{
 150        omap_mmc_init(0);
 151        return 0;
 152}
 153#endif
 154
 155#ifdef CONFIG_CMD_NET
 156/*
 157 * Routine: setup_net_chip
 158 * Description: Setting up the configuration GPMC registers specific to the
 159 *            Ethernet hardware.
 160 */
 161static void setup_net_chip(void)
 162{
 163        struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
 164
 165        /* Configure GPMC registers */
 166        enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
 167                              CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
 168
 169        /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
 170        writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
 171        /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
 172        writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
 173        /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
 174        writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
 175               &ctrl_base->gpmc_nadv_ale);
 176
 177        /* Make GPIO 12 as output pin and send a magic pulse through it */
 178        if (!gpio_request(NET_LAN9221_RESET_GPIO, "")) {
 179                gpio_direction_output(NET_LAN9221_RESET_GPIO, 0);
 180                gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
 181                udelay(1);
 182                gpio_set_value(NET_LAN9221_RESET_GPIO, 0);
 183                udelay(31000);  /* Should be >= 30ms according to datasheet */
 184                gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
 185        }
 186}
 187#endif /* CONFIG_CMD_NET */
 188
 189int board_eth_init(bd_t *bis)
 190{
 191        int rc = 0;
 192        rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
 193        return rc;
 194}
 195