board/samsung/smdkv310/smdkv310.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 <netdev.h>
  26 #include <asm/arch/cpu.h>
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/mmc.h>
  29 #include <asm/arch/periph.h>
  30 #include <asm/arch/pinmux.h>
  31 #include <asm/arch/sromc.h>
  32
  33 DECLARE_GLOBAL_DATA_PTR;
  34 struct exynos4_gpio_part1 *gpio1;
  35 struct exynos4_gpio_part2 *gpio2;
  36
  37 static void smc9115_pre_init(void)
  38 {
  39         u32 smc_bw_conf, smc_bc_conf;
  40
  41         /* gpio configuration GPK0CON */
  42         s5p_gpio_cfg_pin(&gpio2->y0, CONFIG_ENV_SROM_BANK, GPIO_FUNC(2));
  43
  44         /* Ethernet needs bus width of 16 bits */
  45         smc_bw_conf = SROMC_DATA16_WIDTH(CONFIG_ENV_SROM_BANK);
  46         smc_bc_conf = SROMC_BC_TACS(0x0F) | SROMC_BC_TCOS(0x0F)
  47                         | SROMC_BC_TACC(0x0F) | SROMC_BC_TCOH(0x0F)
  48                         | SROMC_BC_TAH(0x0F)  | SROMC_BC_TACP(0x0F)
  49                         | SROMC_BC_PMC(0x0F);
  50
  51         /* Select and configure the SROMC bank */
  52         s5p_config_sromc(CONFIG_ENV_SROM_BANK, smc_bw_conf, smc_bc_conf);
  53 }
  54
  55 int board_init(void)
  56 {
  57         gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
  58         gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
  59
  60         smc9115_pre_init();
  61
  62         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
  63         return 0;
  64 }
  65
  66 int dram_init(void)
  67 {
  68         gd->ram_size    = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)
  69                         + get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE)
  70                         + get_ram_size((long *)PHYS_SDRAM_3, PHYS_SDRAM_3_SIZE)
  71                         + get_ram_size((long *)PHYS_SDRAM_4, PHYS_SDRAM_4_SIZE);
  72
  73         return 0;
  74 }
  75
  76 void dram_init_banksize(void)
  77 {
  78         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  79         gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1, \
  80                                                         PHYS_SDRAM_1_SIZE);
  81         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  82         gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2, \
  83                                                         PHYS_SDRAM_2_SIZE);
  84         gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
  85         gd->bd->bi_dram[2].size = get_ram_size((long *)PHYS_SDRAM_3, \
  86                                                         PHYS_SDRAM_3_SIZE);
  87         gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
  88         gd->bd->bi_dram[3].size = get_ram_size((long *)PHYS_SDRAM_4, \
  89                                                         PHYS_SDRAM_4_SIZE);
  90 }
  91
  92 int board_eth_init(bd_t *bis)
  93 {
  94         int rc = 0;
  95 #ifdef CONFIG_SMC911X
  96         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
  97 #endif
  98         return rc;
  99 }
 100
 101 #ifdef CONFIG_DISPLAY_BOARDINFO
 102 int checkboard(void)
 103 {
 104         printf("\nBoard: SMDKV310\n");
 105         return 0;
 106 }
 107 #endif
 108
 109 #ifdef CONFIG_GENERIC_MMC
 110 int board_mmc_init(bd_t *bis)
 111 {
 112         int i, err;
 113
 114         /*
 115          * MMC2 SD card GPIO:
 116          *
 117          * GPK2[0]      SD_2_CLK(2)
 118          * GPK2[1]      SD_2_CMD(2)
 119          * GPK2[2]      SD_2_CDn
 120          * GPK2[3:6]    SD_2_DATA[0:3](2)
 121          */
 122         for (i = 0; i < 7; i++) {
 123                 /* GPK2[0:6] special function 2 */
 124                 s5p_gpio_cfg_pin(&gpio2->k2, i, GPIO_FUNC(0x2));
 125
 126                 /* GPK2[0:6] drv 4x */
 127                 s5p_gpio_set_drv(&gpio2->k2, i, GPIO_DRV_4X);
 128
 129                 /* GPK2[0:1] pull disable */
 130                 if (i == 0 || i == 1) {
 131                         s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_NONE);
 132                         continue;
 133                 }
 134
 135                 /* GPK2[2:6] pull up */
 136                 s5p_gpio_set_pull(&gpio2->k2, i, GPIO_PULL_UP);
 137         }
 138         err = s5p_mmc_init(2, 4);
 139         return err;
 140 }
 141 #endif
 142
 143 static int board_uart_init(void)
 144 {
 145         int err;
 146
 147         err = exynos_pinmux_config(PERIPH_ID_UART0, PINMUX_FLAG_NONE);
 148         if (err) {
 149                 debug("UART0 not configured\n");
 150                 return err;
 151         }
 152
 153         err = exynos_pinmux_config(PERIPH_ID_UART1, PINMUX_FLAG_NONE);
 154         if (err) {
 155                 debug("UART1 not configured\n");
 156                 return err;
 157         }
 158
 159         err = exynos_pinmux_config(PERIPH_ID_UART2, PINMUX_FLAG_NONE);
 160         if (err) {
 161                 debug("UART2 not configured\n");
 162                 return err;
 163         }
 164
 165         err = exynos_pinmux_config(PERIPH_ID_UART3, PINMUX_FLAG_NONE);
 166         if (err) {
 167                 debug("UART3 not configured\n");
 168                 return err;
 169         }
 170
 171         return 0;
 172 }
 173
 174 #ifdef CONFIG_BOARD_EARLY_INIT_F
 175 int board_early_init_f(void)
 176 {
 177         int err;
 178         err = board_uart_init();
 179         if (err) {
 180                 debug("UART init failed\n");
 181                 return err;
 182         }
 183         return err;
 184 }
 185 #endif