board/ti/am65x/evm.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Board specific initialization for AM654 EVM
   4  *
   5  * Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
   6  *      Lokesh Vutla <lokeshvutla@ti.com>
   7  *
   8  */
   9
  10 #include <common.h>
  11 #include <asm/io.h>
  12 #include <spl.h>
  13 #include <asm/arch/sys_proto.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 int board_init(void)
  18 {
  19         return 0;
  20 }
  21
  22 int dram_init(void)
  23 {
  24 #ifdef CONFIG_PHYS_64BIT
  25         gd->ram_size = 0x100000000;
  26 #else
  27         gd->ram_size = 0x80000000;
  28 #endif
  29
  30         return 0;
  31 }
  32
  33 ulong board_get_usable_ram_top(ulong total_size)
  34 {
  35 #ifdef CONFIG_PHYS_64BIT
  36         /* Limit RAM used by U-Boot to the DDR low region */
  37         if (gd->ram_top > 0x100000000)
  38                 return 0x100000000;
  39 #endif
  40
  41         return gd->ram_top;
  42 }
  43
  44 int dram_init_banksize(void)
  45 {
  46         /* Bank 0 declares the memory available in the DDR low region */
  47         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
  48         gd->bd->bi_dram[0].size = 0x80000000;
  49
  50 #ifdef CONFIG_PHYS_64BIT
  51         /* Bank 1 declares the memory available in the DDR high region */
  52         gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE1;
  53         gd->bd->bi_dram[1].size = 0x80000000;
  54 #endif
  55
  56         return 0;
  57 }
  58
  59 #ifdef CONFIG_SPL_LOAD_FIT
  60 int board_fit_config_name_match(const char *name)
  61 {
  62 #ifdef CONFIG_TARGET_AM654_A53_EVM
  63         if (!strcmp(name, "k3-am654-base-board"))
  64                 return 0;
  65 #endif
  66
  67         return -1;
  68 }
  69 #endif
  70
  71 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
  72 int ft_board_setup(void *blob, bd_t *bd)
  73 {
  74         int ret;
  75
  76         ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000", "sram@70000000");
  77         if (ret)
  78                 printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
  79
  80         return ret;
  81 }
  82 #endif