git.sur5r.net Git - u-boot/blob - board/st-ericsson/snowball/snowball.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2009
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 #include <config.h>
  20 #include <common.h>
  21 #include <malloc.h>
  22 #include <i2c.h>
  23 #include <mmc.h>
  24 #include <asm/types.h>
  25 #include <asm/io.h>
  26 #include <asm/errno.h>
  27 #include <asm/arch/db8500_pincfg.h>
  28
  29 #include "db8500_pins.h"
  30
  31 /*
  32  * Get a global data pointer
  33  */
  34 DECLARE_GLOBAL_DATA_PTR;
  35
  36 /*
  37  * Memory controller register
  38  */
  39 #define DMC_BASE_ADDR                   0x80156000
  40 #define DMC_CTL_97                      (DMC_BASE_ADDR + 0x184)
  41
  42 /*
  43  * GPIO pin config common for MOP500/HREF boards
  44  */
  45 unsigned long gpio_cfg_common[] = {
  46         /* I2C */
  47         GPIO147_I2C0_SCL,
  48         GPIO148_I2C0_SDA,
  49         GPIO16_I2C1_SCL,
  50         GPIO17_I2C1_SDA,
  51         GPIO10_I2C2_SDA,
  52         GPIO11_I2C2_SCL,
  53         GPIO229_I2C3_SDA,
  54         GPIO230_I2C3_SCL,
  55
  56         /* SSP0, to AB8500 */
  57         GPIO143_SSP0_CLK,
  58         GPIO144_SSP0_FRM,
  59         GPIO145_SSP0_RXD | PIN_PULL_DOWN,
  60         GPIO146_SSP0_TXD,
  61
  62         /* MMC0 (MicroSD card) */
  63         GPIO18_MC0_CMDDIR       | PIN_OUTPUT_HIGH,
  64         GPIO19_MC0_DAT0DIR      | PIN_OUTPUT_HIGH,
  65         GPIO20_MC0_DAT2DIR      | PIN_OUTPUT_HIGH,
  66         GPIO21_MC0_DAT31DIR     | PIN_OUTPUT_HIGH,
  67         GPIO22_MC0_FBCLK        | PIN_INPUT_NOPULL,
  68         GPIO23_MC0_CLK          | PIN_OUTPUT_LOW,
  69         GPIO24_MC0_CMD          | PIN_INPUT_PULLUP,
  70         GPIO25_MC0_DAT0         | PIN_INPUT_PULLUP,
  71         GPIO26_MC0_DAT1         | PIN_INPUT_PULLUP,
  72         GPIO27_MC0_DAT2         | PIN_INPUT_PULLUP,
  73         GPIO28_MC0_DAT3         | PIN_INPUT_PULLUP,
  74
  75         /* MMC4 (On-board eMMC) */
  76         GPIO197_MC4_DAT3        | PIN_INPUT_PULLUP,
  77         GPIO198_MC4_DAT2        | PIN_INPUT_PULLUP,
  78         GPIO199_MC4_DAT1        | PIN_INPUT_PULLUP,
  79         GPIO200_MC4_DAT0        | PIN_INPUT_PULLUP,
  80         GPIO201_MC4_CMD         | PIN_INPUT_PULLUP,
  81         GPIO202_MC4_FBCLK       | PIN_INPUT_NOPULL,
  82         GPIO203_MC4_CLK         | PIN_OUTPUT_LOW,
  83         GPIO204_MC4_DAT7        | PIN_INPUT_PULLUP,
  84         GPIO205_MC4_DAT6        | PIN_INPUT_PULLUP,
  85         GPIO206_MC4_DAT5        | PIN_INPUT_PULLUP,
  86         GPIO207_MC4_DAT4        | PIN_INPUT_PULLUP,
  87
  88         /* UART2, console */
  89         GPIO29_U2_RXD   | PIN_INPUT_PULLUP,
  90         GPIO30_U2_TXD   | PIN_OUTPUT_HIGH,
  91         GPIO31_U2_CTSn  | PIN_INPUT_PULLUP,
  92         GPIO32_U2_RTSn  | PIN_OUTPUT_HIGH,
  93
  94         /*
  95          * USB, pin 256-267 USB, Is probably already setup correctly from
  96          * BootROM/boot stages, but we don't trust that and set it up anyway
  97          */
  98         GPIO256_USB_NXT,
  99         GPIO257_USB_STP,
 100         GPIO258_USB_XCLK,
 101         GPIO259_USB_DIR,
 102         GPIO260_USB_DAT7,
 103         GPIO261_USB_DAT6,
 104         GPIO262_USB_DAT5,
 105         GPIO263_USB_DAT4,
 106         GPIO264_USB_DAT3,
 107         GPIO265_USB_DAT2,
 108         GPIO266_USB_DAT1,
 109         GPIO267_USB_DAT0,
 110 };
 111
 112 unsigned long gpio_cfg_snowball[] = {
 113         /* MMC0 (MicroSD card) */
 114         GPIO217_GPIO    | PIN_OUTPUT_HIGH,      /* MMC_EN */
 115         GPIO218_GPIO    | PIN_INPUT_NOPULL,     /* MMC_CD */
 116         GPIO228_GPIO    | PIN_OUTPUT_HIGH,      /* SD_SEL */
 117
 118         /* eMMC */
 119         GPIO167_GPIO    | PIN_OUTPUT_HIGH,      /* RSTn_MLC */
 120
 121         /* LAN */
 122         GPIO131_SM_ADQ8,
 123         GPIO132_SM_ADQ9,
 124         GPIO133_SM_ADQ10,
 125         GPIO134_SM_ADQ11,
 126         GPIO135_SM_ADQ12,
 127         GPIO136_SM_ADQ13,
 128         GPIO137_SM_ADQ14,
 129         GPIO138_SM_ADQ15,
 130
 131         /* RSTn_LAN */
 132         GPIO141_GPIO    | PIN_OUTPUT_HIGH,
 133 };
 134
 135 /*
 136  * Miscellaneous platform dependent initialisations
 137  */
 138
 139 int board_init(void)
 140 {
 141         /*
 142          * Setup board (bd) and board-info (bi).
 143          * bi_arch_number: Unique id for this board. It will passed in r1 to
 144          *    Linux startup code and is the machine_id.
 145          * bi_boot_params: Where this board expects params.
 146          */
 147         gd->bd->bi_arch_number = MACH_TYPE_SNOWBALL;
 148         gd->bd->bi_boot_params = 0x00000100;
 149
 150         /* Configure GPIO pins needed by U-boot */
 151         db8500_gpio_config_pins(gpio_cfg_common, ARRAY_SIZE(gpio_cfg_common));
 152
 153         db8500_gpio_config_pins(gpio_cfg_snowball,
 154                                                 ARRAY_SIZE(gpio_cfg_snowball));
 155
 156         return 0;
 157 }
 158
 159 int dram_init(void)
 160 {
 161         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
 162         gd->ram_size = gd->bd->bi_dram[0].size =
 163                 get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE);
 164
 165         return 0;
 166 }