arch/arm/mach-rockchip/board.c

   1 /*
   2  * (C) Copyright 2015 Google, Inc
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <ram.h>
  10 #include <asm/io.h>
  11
  12 DECLARE_GLOBAL_DATA_PTR;
  13
  14 int board_init(void)
  15 {
  16         return 0;
  17 }
  18
  19 int dram_init(void)
  20 {
  21         struct ram_info ram;
  22         struct udevice *dev;
  23         int ret;
  24
  25         ret = uclass_get_device(UCLASS_RAM, 0, &dev);
  26         if (ret) {
  27                 debug("DRAM init failed: %d\n", ret);
  28                 return ret;
  29         }
  30         ret = ram_get_info(dev, &ram);
  31         if (ret) {
  32                 debug("Cannot get DRAM size: %d\n", ret);
  33                 return ret;
  34         }
  35         debug("SDRAM base=%lx, size=%x\n", ram.base, ram.size);
  36         gd->ram_size = ram.size;
  37
  38         return 0;
  39 }
  40
  41 #ifndef CONFIG_SYS_DCACHE_OFF
  42 void enable_caches(void)
  43 {
  44         /* Enable D-cache. I-cache is already enabled in start.S */
  45         dcache_enable();
  46 }
  47 #endif
  48
  49 void lowlevel_init(void)
  50 {
  51 }