board/davinci/dm6467evm/dm6467evm.c

   1 /*
   2  * Copyright (C) 2009 Texas Instruments Incorporated
   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 <common.h>
  20 #include <netdev.h>
  21 #include <asm/io.h>
  22 #include <nand.h>
  23 #include <asm/arch/nand_defs.h>
  24
  25 DECLARE_GLOBAL_DATA_PTR;
  26
  27 #define REV_DM6467EVM           0
  28 #define REV_DM6467TEVM          1
  29 /*
  30  * get_board_rev() - setup to pass kernel board revision information
  31  * Returns:
  32  * bit[0-3]     System clock frequency
  33  * 0000b        - 27 MHz
  34  * 0001b        - 33 MHz
  35  */
  36 u32 get_board_rev(void)
  37 {
  38
  39 #ifdef CONFIG_DAVINCI_DM6467TEVM
  40         return REV_DM6467TEVM;
  41 #else
  42         return REV_DM6467EVM;
  43 #endif
  44
  45 }
  46
  47 int board_init(void)
  48 {
  49         gd->bd->bi_arch_number = MACH_TYPE_DAVINCI_DM6467_EVM;
  50         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
  51
  52         lpsc_on(DAVINCI_DM646X_LPSC_TIMER0);
  53         lpsc_on(DAVINCI_DM646X_LPSC_UART0);
  54         lpsc_on(DAVINCI_DM646X_LPSC_I2C);
  55         lpsc_on(DAVINCI_DM646X_LPSC_EMAC);
  56
  57         /* Enable GIO3.3V cells used for EMAC */
  58         REG(VDD3P3V_PWDN) = 0x80000c0;
  59
  60         /* Select UART function on UART0 */
  61         REG(PINMUX0) &= ~(0x0000003f << 18);
  62         REG(PINMUX1) &= ~(0x00000003);
  63
  64         return 0;
  65 }
  66
  67 #if defined(CONFIG_DRIVER_TI_EMAC)
  68
  69 int board_eth_init(bd_t *bis)
  70 {
  71         if (!davinci_emac_initialize()) {
  72                 printf("Error: Ethernet init failed!\n");
  73                 return -1;
  74         }
  75
  76         return 0;
  77 }
  78 #endif /* CONFIG_DRIVER_TI_EMAC */
  79
  80 #ifdef CONFIG_NAND_DAVINCI
  81 int board_nand_init(struct nand_chip *nand)
  82 {
  83         davinci_nand_init(nand);
  84
  85         return 0;
  86 }
  87 #endif