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 * SPDX-License-Identifier:     GPL-2.0+
  19 */
  20#include <common.h>
  21#include <netdev.h>
  22#include <twl4030.h>
  23#include <asm/io.h>
  24#include <asm/arch/mmc_host_def.h>
  25#include <asm/arch/omap3-regs.h>
  26#include <asm/arch/mux.h>
  27#include <asm/arch/mem.h>
  28#include <asm/arch/sys_proto.h>
  29#include <asm/gpio.h>
  30#include <asm/mach-types.h>
  31#include "dig297.h"
  32
  33DECLARE_GLOBAL_DATA_PTR;
  34
  35#ifdef CONFIG_CMD_NET
  36static void setup_net_chip(void);
  37
  38#define NET_LAN9221_RESET_GPIO 12
  39
  40/* GPMC CS 5 connected to an SMSC LAN9220 ethernet controller */
  41#define NET_LAN9220_GPMC_CONFIG1        (DEVICESIZE_16BIT)
  42#define NET_LAN9220_GPMC_CONFIG2        (CSWROFFTIME(8) | \
  43                                         CSRDOFFTIME(7) | \
  44                                         ADVONTIME(1))
  45#define NET_LAN9220_GPMC_CONFIG3        (ADVWROFFTIME(2) | \
  46                                         ADVRDOFFTIME(2) | \
  47                                         ADVONTIME(1))
  48#define NET_LAN9220_GPMC_CONFIG4        (WEOFFTIME(8) | \
  49                                         WEONTIME(1) |  \
  50                                         OEOFFTIME(7)|  \
  51                                         OEONTIME(1))
  52#define NET_LAN9220_GPMC_CONFIG5        (PAGEBURSTACCESSTIME(0) | \
  53                                         RDACCESSTIME(6)        | \
  54                                         WRCYCLETIME(0x1D)      | \
  55                                         RDCYCLETIME(0x1D))
  56#define NET_LAN9220_GPMC_CONFIG6        ((1 << 31)          | \
  57                                         WRACCESSTIME(0x1D) | \
  58                                         WRDATAONADMUXBUS(3))
  59
  60static const u32 gpmc_lan_config[] = {
  61        NET_LAN9220_GPMC_CONFIG1,
  62        NET_LAN9220_GPMC_CONFIG2,
  63        NET_LAN9220_GPMC_CONFIG3,
  64        NET_LAN9220_GPMC_CONFIG4,
  65        NET_LAN9220_GPMC_CONFIG5,
  66        NET_LAN9220_GPMC_CONFIG6,
  67        /* CONFIG7: computed by enable_gpmc_cs_config() */
  68};
  69#endif /* CONFIG_CMD_NET */
  70
  71/*
  72 * Routine: board_init
  73 * Description: Early hardware init.
  74 */
  75int board_init(void)
  76{
  77        gpmc_init();            /* in SRAM or SDRAM, finish GPMC */
  78        /* boot param addr */
  79        gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
  80
  81        return 0;
  82}
  83
  84/*
  85 * Routine: misc_init_r
  86 * Description: Configure board specific parts
  87 */
  88int misc_init_r(void)
  89{
  90        struct gpio *gpio1_base = (struct gpio *)OMAP34XX_GPIO1_BASE;
  91        struct gpio *gpio5_base = (struct gpio *)OMAP34XX_GPIO5_BASE;
  92
  93        twl4030_power_init();
  94        twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
  95
  96        /*
  97         * GPIO list
  98         * - 159 OUT (GPIO5+31): reset for remote camera interface connector.
  99         * - 19  OUT (GPIO1+19): integrated speaker amplifier (1=on, 0=shdn).
 100         * - 20  OUT (GPIO1+20): handset amplifier (1=on, 0=shdn).
 101         */
 102
 103        /* Configure GPIOs to output */
 104        writel(~(GPIO19 | GPIO20), &gpio1_base->oe);
 105        writel(~(GPIO31), &gpio5_base->oe);
 106
 107        /* Set GPIO values */
 108        writel((GPIO19 | GPIO20), &gpio1_base->setdataout);
 109        writel(0, &gpio5_base->setdataout);
 110
 111#if defined(CONFIG_CMD_NET)
 112        setup_net_chip();
 113#endif
 114
 115        dieid_num_r();
 116
 117        return 0;
 118}
 119
 120/*
 121 * Routine: set_muxconf_regs
 122 * Description: Setting up the configuration Mux registers specific to the
 123 *              hardware. Many pins need to be moved from protect to primary
 124 *              mode.
 125 */
 126void set_muxconf_regs(void)
 127{
 128        MUX_DIG297();
 129}
 130
 131#ifdef CONFIG_GENERIC_MMC
 132int board_mmc_init(bd_t *bis)
 133{
 134        return omap_mmc_init(0, 0, 0, -1, -1);
 135}
 136
 137void board_mmc_power_init(void)
 138{
 139        twl4030_power_mmc_init(0);
 140}
 141#endif
 142
 143#ifdef CONFIG_CMD_NET
 144/*
 145 * Routine: setup_net_chip
 146 * Description: Setting up the configuration GPMC registers specific to the
 147 *            Ethernet hardware.
 148 */
 149static void setup_net_chip(void)
 150{
 151        struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
 152
 153        /* Configure GPMC registers */
 154        enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
 155                              CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
 156
 157        /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
 158        writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
 159        /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
 160        writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
 161        /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
 162        writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
 163               &ctrl_base->gpmc_nadv_ale);
 164
 165        /* Make GPIO 12 as output pin and send a magic pulse through it */
 166        if (!gpio_request(NET_LAN9221_RESET_GPIO, "")) {
 167                gpio_direction_output(NET_LAN9221_RESET_GPIO, 0);
 168                gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
 169                udelay(1);
 170                gpio_set_value(NET_LAN9221_RESET_GPIO, 0);
 171                udelay(31000);  /* Should be >= 30ms according to datasheet */
 172                gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
 173        }
 174}
 175#endif /* CONFIG_CMD_NET */
 176
 177int board_eth_init(bd_t *bis)
 178{
 179        int rc = 0;
 180        rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
 181        return rc;
 182}
 183