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 #include <asm/arch/periph.h>
  29 #include <asm/arch/pinmux.h>
  30
  31 DECLARE_GLOBAL_DATA_PTR;
  32 struct exynos4_gpio_part1 *gpio1;
  33 struct exynos4_gpio_part2 *gpio2;
  34
  35 int board_init(void)
  36 {
  37         gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
  38         gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
  39
  40         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
  41         return 0;
  42 }
  43
  44 static int board_uart_init(void)
  45 {
  46         int err;
  47
  48         err = exynos_pinmux_config(PERIPH_ID_UART0, PINMUX_FLAG_NONE);
  49         if (err) {
  50                 debug("UART0 not configured\n");
  51                 return err;
  52         }
  53
  54         err = exynos_pinmux_config(PERIPH_ID_UART1, PINMUX_FLAG_NONE);
  55         if (err) {
  56                 debug("UART1 not configured\n");
  57                 return err;
  58         }
  59
  60         err = exynos_pinmux_config(PERIPH_ID_UART2, PINMUX_FLAG_NONE);
  61         if (err) {
  62                 debug("UART2 not configured\n");
  63                 return err;
  64         }
  65
  66         err = exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
  67         if (err) {
  68                 debug("UART3 not configured\n");
  69                 return err;
  70         }
  71
  72         return 0;
  73 }
  74
  75 #ifdef CONFIG_BOARD_EARLY_INIT_F
  76 int board_early_init_f(void)
  77 {
  78         int err;
  79         err = board_uart_init();
  80         if (err) {
  81                 debug("UART init failed\n");
  82                 return err;
  83         }
  84         return err;
  85 }
  86 #endif
  87
  88 int dram_init(void)
  89 {
  90         gd->ram_size    = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
  91                         + get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE)
  92                         + get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE)
  93                         + get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE);
  94
  95         return 0;
  96 }
  97
  98 void dram_init_banksize(void)
  99 {
 100         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 101         gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1, \
 102                                                         PHYS_SDRAM_1_SIZE);
 103         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 104         gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2, \
 105                                                         PHYS_SDRAM_2_SIZE);
 106         gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
 107         gd->bd->bi_dram[2].size = get_ram_size((long *)PHYS_SDRAM_3, \
 108                                                         PHYS_SDRAM_3_SIZE);
 109         gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
 110         gd->bd->bi_dram[3].size = get_ram_size((long *)PHYS_SDRAM_4, \
 111                                                         PHYS_SDRAM_4_SIZE);
 112 }
 113
 114 #ifdef CONFIG_DISPLAY_BOARDINFO
 115 int checkboard(void)
 116 {
 117         printf("\nBoard: ORIGEN\n");
 118         return 0;
 119 }
 120 #endif
 121
 122 #ifdef CONFIG_GENERIC_MMC
 123 int board_mmc_init(bd_t *bis)
 124 {
 125         int i, err;
 126
 127         /*
 128          * MMC2 SD card GPIO:
 129          *
 130          * GPK2[0]      SD_2_CLK(2)
 131          * GPK2[1]      SD_2_CMD(2)
 132          * GPK2[2]      SD_2_CDn
 133          * GPK2[3:6]    SD_2_DATA[0:3](2)
 134          */
 135         for (i = 0; i < 7; i++) {
 136                 /* GPK2[0:6] special function 2 */
 137                 s5p_gpio_cfg_pin(&gpio2->k2, i, GPIO_FUNC(0x2));
 138
 139                 /* GPK2[0:6] drv 4x */
 140                 s5p_gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
 141
 142                 /* GPK2[0:1] pull disable */
 143                 if (i == 0 || i == 1) {
 144                         s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
 145                         continue;
 146                 }
 147
 148                 /* GPK2[2:6] pull up */
 149                 s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_UP);
 150         }
 151
 152         err = s5p_mmc_init(2, 4);
 153         return err;
 154 }
 155 #endif