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
  33 DECLARE_GLOBAL_DATA_PTR;
  34
  35 #ifdef CONFIG_CMD_NET
  36 static 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
  60 static 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  */
  75 int 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  */
  88 int 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  */
 126 void set_muxconf_regs(void)
 127 {
 128         MUX_DIG297();
 129 }
 130
 131 #ifdef CONFIG_GENERIC_MMC
 132 int board_mmc_init(bd_t *bis)
 133 {
 134         return omap_mmc_init(0, 0, 0, -1, -1);
 135 }
 136 #endif
 137
 138 #ifdef CONFIG_CMD_NET
 139 /*
 140  * Routine: setup_net_chip
 141  * Description: Setting up the configuration GPMC registers specific to the
 142  *            Ethernet hardware.
 143  */
 144 static void setup_net_chip(void)
 145 {
 146         struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
 147
 148         /* Configure GPMC registers */
 149         enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
 150                               CONFIG_SMC911X_BASE, GPMC_SIZE_16M);
 151
 152         /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
 153         writew(readw(&ctrl_base->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
 154         /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
 155         writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
 156         /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
 157         writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
 158                &ctrl_base->gpmc_nadv_ale);
 159
 160         /* Make GPIO 12 as output pin and send a magic pulse through it */
 161         if (!gpio_request(NET_LAN9221_RESET_GPIO, "")) {
 162                 gpio_direction_output(NET_LAN9221_RESET_GPIO, 0);
 163                 gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
 164                 udelay(1);
 165                 gpio_set_value(NET_LAN9221_RESET_GPIO, 0);
 166                 udelay(31000);  /* Should be >= 30ms according to datasheet */
 167                 gpio_set_value(NET_LAN9221_RESET_GPIO, 1);
 168         }
 169 }
 170 #endif /* CONFIG_CMD_NET */
 171
 172 int board_eth_init(bd_t *bis)
 173 {
 174         int rc = 0;
 175         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
 176         return rc;
 177 }