board/Marvell/dkb/dkb.c

   1 /*
   2  * (C) Copyright 2011
   3  * Marvell Semiconductor <www.marvell.com>
   4  * Written-by: Lei Wen <leiwen@marvell.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  22  * MA 02110-1301 USA
  23  */
  24
  25 #include <common.h>
  26 #include <mvmfp.h>
  27 #include <i2c.h>
  28 #include <asm/arch/mfp.h>
  29 #include <asm/arch/cpu.h>
  30 #ifdef CONFIG_GENERIC_MMC
  31 #include <sdhci.h>
  32 #endif
  33
  34 DECLARE_GLOBAL_DATA_PTR;
  35
  36 int board_early_init_f(void)
  37 {
  38         u32 mfp_cfg[] = {
  39                 /* Enable Console on UART2 */
  40                 MFP47_UART2_RXD,
  41                 MFP48_UART2_TXD,
  42
  43                 /* I2C */
  44                 MFP53_CI2C_SCL,
  45                 MFP54_CI2C_SDA,
  46
  47                 /* MMC1 */
  48                 MFP_MMC1_DAT7,
  49                 MFP_MMC1_DAT6,
  50                 MFP_MMC1_DAT5,
  51                 MFP_MMC1_DAT4,
  52                 MFP_MMC1_DAT3,
  53                 MFP_MMC1_DAT2,
  54                 MFP_MMC1_DAT1,
  55                 MFP_MMC1_DAT0,
  56                 MFP_MMC1_CMD,
  57                 MFP_MMC1_CLK,
  58                 MFP_MMC1_CD,
  59                 MFP_MMC1_WP,
  60
  61                 MFP_EOC         /*End of configureation*/
  62         };
  63         /* configure MFP's */
  64         mfp_config(mfp_cfg);
  65
  66         return 0;
  67 }
  68
  69 int board_init(void)
  70 {
  71         /* arch number of Board */
  72         gd->bd->bi_arch_number = MACH_TYPE_TTC_DKB;
  73         /* adress of boot parameters */
  74         gd->bd->bi_boot_params = panth_sdram_base(0) + 0x100;
  75         return 0;
  76 }
  77
  78 #ifdef CONFIG_GENERIC_MMC
  79 #define I2C_SLAVE_ADDR  0x34
  80 #define LDO13_REG       0x28
  81 #define LDO_V30         0x6
  82 #define LDO_VOLTAGE(x)  ((x & 0x7) << 1)
  83 #define LDO_EN          0x1
  84 int board_mmc_init(bd_t *bd)
  85 {
  86         ulong mmc_base_address[CONFIG_SYS_MMC_NUM] = CONFIG_SYS_MMC_BASE;
  87         u8 i, data;
  88
  89         /* set LDO 13 to 3.0v */
  90         data = LDO_VOLTAGE(LDO_V30) | LDO_EN;
  91         i2c_write(I2C_SLAVE_ADDR, LDO13_REG, 1, &data, 1);
  92
  93         for (i = 0; i < CONFIG_SYS_MMC_NUM; i++) {
  94                 if (mv_sdh_init(mmc_base_address[i], 0, 0,
  95                                 SDHCI_QUIRK_32BIT_DMA_ADDR))
  96                         return 1;
  97         }
  98
  99         return 0;
 100 }
 101 #endif