board/samsung/origen/origen.c

   1 /*
   2  * Copyright (C) 2011 Samsung Electronics
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #include <common.h>
  24 #include <asm/io.h>
  25 #include <asm/arch/cpu.h>
  26 #include <asm/arch/gpio.h>
  27 #include <asm/arch/mmc.h>
  28
  29 DECLARE_GLOBAL_DATA_PTR;
  30 struct exynos4_gpio_part1 *gpio1;
  31 struct exynos4_gpio_part2 *gpio2;
  32
  33 int board_init(void)
  34 {
  35         gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
  36         gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
  37
  38         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
  39         return 0;
  40 }
  41
  42 int dram_init(void)
  43 {
  44         gd->ram_size    = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
  45                         + get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE)
  46                         + get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE)
  47                         + get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE);
  48
  49         return 0;
  50 }
  51
  52 void dram_init_banksize(void)
  53 {
  54         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  55         gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1, \
  56                                                         PHYS_SDRAM_1_SIZE);
  57         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  58         gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2, \
  59                                                         PHYS_SDRAM_2_SIZE);
  60         gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
  61         gd->bd->bi_dram[2].size = get_ram_size((long *)PHYS_SDRAM_3, \
  62                                                         PHYS_SDRAM_3_SIZE);
  63         gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
  64         gd->bd->bi_dram[3].size = get_ram_size((long *)PHYS_SDRAM_4, \
  65                                                         PHYS_SDRAM_4_SIZE);
  66 }
  67
  68 #ifdef CONFIG_DISPLAY_BOARDINFO
  69 int checkboard(void)
  70 {
  71         printf("\nBoard: ORIGEN\n");
  72         return 0;
  73 }
  74 #endif
  75
  76 #ifdef CONFIG_GENERIC_MMC
  77 int board_mmc_init(bd_t *bis)
  78 {
  79         int i, err;
  80
  81         /*
  82          * MMC2 SD card GPIO:
  83          *
  84          * GPK2[0]      SD_2_CLK(2)
  85          * GPK2[1]      SD_2_CMD(2)
  86          * GPK2[2]      SD_2_CDn
  87          * GPK2[3:6]    SD_2_DATA[0:3](2)
  88          */
  89         for (i = 0; i < 7; i++) {
  90                 /* GPK2[0:6] special function 2 */
  91                 s5p_gpio_cfg_pin(&gpio2->k2, i, GPIO_FUNC(0x2));
  92
  93                 /* GPK2[0:6] drv 4x */
  94                 s5p_gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
  95
  96                 /* GPK2[0:1] pull disable */
  97                 if (i == 0 || i == 1) {
  98                         s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
  99                         continue;
 100                 }
 101
 102                 /* GPK2[2:6] pull up */
 103                 s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_UP);
 104         }
 105
 106         err = s5p_mmc_init(2, 4);
 107         return err;
 108 }
 109 #endif